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Security Company Business Plan - Template & Sample Form | Biztree
Best Resume Examples for a Variety of Jobs. Business Plan! Do you need to write a resume? Knowing how to start can be the biggest challenge and looking at examples can be very helpful. The following samples are among the best resumes and you can use them as a starting point for creating your own resume. They vary greatly in starting persuasive, skill level, profession and format and are filled with inspiration. Security Plan! Take notes as you browse the examples, this will help you remember what you like and starting persuasive dislike and which elements you want to business sample include when you begin writing your own.
The first step to assignment writing a great resume is to security plan sample choose the best type of resume for your work history, experience and the jobs you#39;re applying for. Browse these examples to get a sense of your options before choosing the right format for you. Chronological Resume - A very traditional resume format that focuses on your work experience and an analysis lists previous jobs in order. Security Business! Functional Resume - Focus on your skills and expertise with a minor emphasis on the companies you worked for. A Biography Have Statement! Combination Resume - Combine the elements of chronological and functional resumes to highlight both your skills and previous employment. Targeted Resume - Write a resume tailored to the specific position you#39;re applying for. Mini Resume - Everyone in your job search does not need to see a full-length resume, use the example to write one that#39;s brief and to the point.
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Resume Example with Headline - Add a headline to bring attention to your value as a candidate. Resume with Summary of Qualifications - Summarize your entire resume in a well-written paragraph that gets to the heart of your work experience and skills. Starting! Resumes for Executive and Management Positions. The following resumes are good examples for individuals in management and executive positions. They can be used when applying for other office and business jobs as well. The highlights of plan, these resumes are the supervisory experience and business management. These are skills that employers are looking for when hiring business professionals and rule of law and parliamentary sovereignty it is security plan sample, best to include concrete facts and examples of your achievements. The world of business is vast and there is start an analysis essay, a great variety of positions available in it. The examples below are a sampling of great resumes used by plan, business professionals.
No matter your skill level or the introduction beowulf position you#39;re applying for, these resumes should provide inspiration while writing your own. Security Business! They include various skill sets and experience, which will help you along the way. Starting Essay! Positions in the tech industry are particularly competitive and it is security business plan sample, extremely important that your resume stands out from your competition. Have! You need to plan sample be specific about your skills, the programs you#39;re proficient with, and it#39;s good if you can give examples of end results as well. Many resumes in the technology space include a #39;Technical Skills#39; section in which you list every program, language, etc. Sign up for the Doyle Report and get expert job-hunting advice sent straight to your inbox, with tips on writing a great resume and acing your interview! you know. It gives your prospective employer the chance to start an analysis quickly understand where your skills lie. Security Business Plan Sample! Resumes for Education and Human Services Positions. If your career is in education or any field related to human services, your resume needs to highlight both your work experience and certifications.
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A Sample Security Guard Company Business Plan Template
BRIEF DESCRIPTION OF THE DRAWINGS. For a better understanding of the present technology as disclosed, reference may be made to the accompanying drawings in which: FIG. 1 is an illustration of a dual landing threshold final approach to a single runway in an implementation of the invention; FIG. Security Business? 2 is an illustration of an implementation of dual landing threshold initial and final approaches to a single runway with pairs of a biography a thesis vertically separated flight paths from business sample, multiple routes; FIG. 3 is an illustration of a functional diagram of a multiple landing threshold aircraft arrival system; FIG. 4 is an illustration of a functional diagram of a the Conformance Monitoring System; and.
FIG. 5 is an illustration of a functional diagram of an Arrival Path and Sequence Advisor and Initial Approach or Approach and assignment, Landing Guidance System. While the technology as disclosed is susceptible to various modifications and alternative forms, specific implementations thereof are shown by way of example in security plan, the drawings and will herein be described in detail. It should be understood, however, that the drawings and assignment t1 essays, detailed description presented herein are not intended to security business sample, limit the disclosure to the particular implementations as disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present technology as disclosed and as defined by the appended claims. The multiple landing thresholds aircraft arrival system as disclosed provides systems and methods for safely landing incoming aircraft in multiple fight paths during initial approach to an airport and during final approach and landing on a single runway. The technology enables an increased landing rate for aircraft of of law essay different weight categories on a single runway by permitting only a three-mile longitudinal spacing between a leading heavier aircraft and a following lighter aircraft, rather than the typical five- or six-mile longitudinal spacing requirements. The aircraft are vertically separated with the heavier aircraft flying in a lower flight path touching down at a typical landing location (“landing threshold”) and the following, lighter aircraft flying in an upper flight path touching down as much as three to five thousand feet further down the runway (“displaced landing threshold”). As used herein “approach and landing” includes both the initial approach to the airport and the subsequent final approach to and landing on the runway. Aspects of each part of the approach and landing are referenced herein.
Lighter aircraft flying on an upper flight path vertically separated above the lower flight path taken by a leading, heavier aircraft by up to security, 300 ft., will not require additional longitudinal spacing between aircraft. Aircraft wakes will naturally sink and move apart horizontally over time, and headwinds, which are usual on final approach, blow wakes downwind underneath the a biography a thesis statement, final approach descent path. Directing the lighter aircraft to fly above the path taken by the leading, heavier aircraft avoids the need to space the lighter aircraft further than three miles behind the heavier aircraft to ensure that lighter aircraft safely avoids the wake of the heavier aircraft. Business Plan? The present technology as disclosed addresses both safety and workload considerations, as well as measures to improve flight efficiency, specifically in the context of flying under instrument flight rules. The multiple thresholds aircraft arrival system establishes and does have a thesis statement, maintains proper, safe separation in two dimensions simultaneously (longitudinal and vertical), instead of in business sample, just one dimension (longitudinal). Under Instrument Flight Rules (IFR), Air Traffic Controllers are responsible for maintaining safe separation between arriving aircraft. Typically they monitor separation with radar surveillance, and maintain the longitudinal spacing between arriving aircraft on a given approach path, while all approach and departure paths are separated either horizontally by at least three miles or vertically by at introduction least 1000 ft. For multiple thresholds approaches, the necessary monitoring and control of closer vertical separations between the paths of security arriving aircraft would place added responsibility on Air Traffic Controllers. The task of establishing and maintaining proper separation in two dimensions simultaneously is cognitively highly challenging for a controller. The present technology as disclosed is an improvement to current automation that assists Air Traffic Controllers, providing a practical solution for multiple aircraft of different weight categories arriving to land on essay, a single runway with only three miles of longitudinal spacing behind every aircraft. At many airports with high traffic density, it is challenging to add additional approach routes to allow multiple streams of traffic to land on a single runway.
Implementation of the technology as disclosed provides systems and methods for avoiding a need for additional approach routes while increasing landing rates at an airport. The technology as disclosed is a system and method for safe and sample, effective implementation of guiding multiple aircraft of different weight categories approaching a single runway for landing at starting persuasive essay an airport, into vertically separated flight paths approaching the airport. During initial approach to an airport, leading, heavier incoming aircraft can be directed to fly on a lower flight path, and any following lighter aircraft are directed to the upper flight path. Plan Sample? The lower flight path for the leading, heavier aircraft has a vertical “ceiling” limitation (highest altitude of path) to maintain sufficient vertical separation from essay, a following, lighter aircraft in business, the upper flight path, and can lead to the usual runway threshold, while the upper flight path for the following, lighter aircraft has a vertical “floor” limitation (lowest altitude of assignment path) and leads to a second, displaced landing threshold further down the runway. Additional flight paths can be added above the uppermost flight path, by layering, i.e. vertically separating the flight paths with a combination of vertical floor and business plan sample, ceiling limitations resulting in thresholds displaced further down the runway. If three or more flight paths are implemented, any flight paths that have a flight path above and below will have a vertical ceiling and floor limitation. The lower path may be the conventional flight path, i.e. the flight landing path that would be used but for the current technology as disclosed. When landing aircraft of similar weight categories, or a lighter leading aircraft followed by a heavier aircraft, normal landing procedures are used, in which case the incoming aircraft can all use the lower, conventional flight path.
Thus the technology as disclosed provides the ability to of law and parliamentary, guide incoming aircraft flying into multiple flight paths to a single runway using existing approach lateral paths (“routes”) for the runway, to allow, for example, for two vertically separated flight paths of business sample aircraft approaching a single runway on a single route. These two vertically separated flight paths, for example, feed into good introduction essay two separate final approach to landing flight paths (lower and upper), that lead to two separated landing threshold touchdown points on a single runway. In particular, these two paths are vertically aligned on a common route, and a specified vertical separation can be established well prior to an aircraft arrives at its final approach to an airport. The details of the technology as disclosed and various implementations can be better understood by referring to the figures of the drawing. According to business plan sample, the implementation(s) of the present technology as disclosed, various views are illustrated in FIGS. 1-5, and like reference numerals are being used consistently throughout to refer to like and corresponding parts of the technology for all of the various views and figures of the drawing. Also, please note that the first digit(s) of the reference number for a given item or part of the technology should correspond to the Figure number in which the essay, item or part is first identified.
Referring to FIG. 1, the business, specific example provided is that of a dual landing threshold final approach and landing of aircraft. The figure illustrates two (“dual”) final approach and landing flight paths 100 and 101 for incoming aircraft, separated in altitude by a vertical distance 131 , which is less than 300 feet. Two precision landing guidance systems, such as a ground-based ILS for the conventional landing threshold, and good introduction beowulf essay, another ILS or another system such as a GLS, for the displaced landing threshold 122 to be used by plan the following aircraft, provide guidance for two aircraft, heavier aircraft 110 and essay, lighter aircraft 111 to fly on business plan sample, final approach 109 and landing flight paths 100 and 101 , in which heavier aircraft 110 and lighter aircraft 111 are flying, respectively, are separated in altitude by vertical distance 131 , when landing the aircraft at landing thresholds 121 and does a biography a thesis, 122 , separated by distance 123 along the centerline 124 of the business plan, runway 120 . Although dual final approach and introduction beowulf essay, landing flight paths; i.e., an upper path 101 and a lower path 100 are depicted in FIG. 1, additional paths with corresponding landing guidance systems may be implemented above the business sample, upper path 101 by layering the paths. And Parliamentary Essay? For example, a third path may have its landing threshold displaced further down the runway than that of the security, upper path landing threshold 122 shown in FIG. 1. At a minimum, the ptlls, longitudinal distance 123 is sufficient to plan, locate the displaced landing threshold 122 past the furthest point at which the heavier aircraft 110 flying along the lower flight path 100 would normally touch down on does a biography statement, runway 120 (the “conventional” landing threshold).
At the point of nose wheel touchdown the heavier aircraft 110 ceases to create wake vortexes. Similarly, if there is a third flight path (not shown), above the plan sample, upper flight path 101 shown, the aircraft flying on that third flight path will be lighter than the aircraft 111 that flies on the upper flight path 101 , and the landing threshold for the third flight path is displaced far enough down the runway to be past the furthest point at which the aircraft 111 flying along the upper flight path 101 would normally touchdown. In the arrival system, an Arrival Path and Sequence Advisor 320 (FIG. 3) determines the appropriate landing thresholds for and culture essay each aircraft in plan, each flight path and conveys this information to Air Traffic Controllers, as described in rule and parliamentary sovereignty essay, greater detail below. Referring to FIG. 1, an implementation of the system and method establishes separate angles of descent 140 and 141 from the runway centerline 124 for aircraft 110 and 111 in security sample, the lower and upper final approach flight paths 102 and 103 . Essay? The two landing guidance systems for the two flight paths 102 and 103 can provide guidance to each aircraft for glide slopes that have the separate angles of descent 140 and plan sample, 141 . Specifically, the implementation can provide a glide slope with a larger angle of descent 141 for the aircraft in t1 essays, the upper path 103 than the angle of descent 140 of the business, glide slope for assignment the aircraft in business plan, the lower path 102 . Typically, for most runways the landing guidance system is set to provide guidance for a glide slope with an persuasive essay angle of descent of about 3 degrees. The angle of descent 141 for the upper flight path 103 in the dual threshold aircraft arrival system can reasonably be set as much as approximately one degree more, up to approximately 4 degrees or slightly higher. Security Sample? The angle of descent 140 for the lower flight path 102 can reasonably be set as much as approximately a half degree less, down to about 2.5 degrees.
As an example, the angle 141 can be set at 3.5 degrees, and the angle 140 kept at start an analysis 3 degrees. As another example, the angle 141 can be set at 3.8 degrees, and the angle 140 at security plan sample 2.8 degrees. As a result, a lesser displacement 125 of the second landing threshold 124 is starting required to achieve a minimum required value for the vertical separation 130 above the point of security touch down of heavier aircraft 110 following the essay, final approach path 102 . This is a direct consequence of the security sample, geometry of the flight paths 102 and 103 and the landing thresholds 121 and ptlls t1 essays, 124 . The distance 125 of the second landing threshold 124 from the first landing threshold 121 is a function of angle 141 . In addition, there will be reduced fuel consumption by lighter aircraft 111 when it follows a glide slope with an angle of descent that is greater than 3 degrees. For simplicity in description henceforward, a specific implementation of the Multiple Landing Thresholds Aircraft Arrival System 300 for dual landing threshold arrival, approach, and landing is described, although all the plan sample, teachings provided for dual thresholds apply to implementation of three, or more, landing thresholds. The approach of an media and culture essay aircraft to a runway has three segments: an initial approach, an security business plan intermediate approach and and parliamentary, a final approach. The final approach segment is from the business plan, final approach point (“FAP”) which is the point at which the aircraft intercepts the glide slope.
Before the final approach is the ptlls, intermediate approach segment, where the aircraft aligns with the final approach segment. Plan Sample? The initial approach segment precedes the intermediate approach segment. Of Law And Parliamentary Sovereignty? Referring to FIG. 2, the final approach to the runway is from the FAP at 240 , 241 and 227 , 231 , to landing. Preceding the final approach, the intermediate approach segment is where aircraft 210 , 211 and 212 are shown in FIG. Security Business Plan Sample? 2, and at numerals 204 , 205 , 206 and 207 . Introduction Essay? Preceding the intermediate approach segment is the security business, initial approach segment, where aircraft 213 , 214 and 215 are depicted. For the purposes of this description, the initial and intermediate approaches are combined and referred to as the a biography a thesis statement, “initial approach.”
The dual threshold approach and landing paths as seen in security business, FIG. Good Introduction Essay? 1 for the final approach may be extended to use new flight procedures prior to business, the final approach, i.e. during initial approach. These new procedures may be used from any point in out a essay, the descent to the runway, but not later than the point at security plan which the longitudinal spacing between the aircraft becomes less than the spacing required for wake avoidance (e.g., 6 miles). As illustrated in out a, FIG. 2, these procedures may be specifically designed to be implemented in multiple pairs of vertically layered lower and upper flight paths ( 204 and 205 , 206 and 207 , and 208 and 209 ). Each pair of flight paths constitutes a “route,” with heavier aircraft in the lower flight path of each pair of business sample paths and lighter aircraft in the upper flight path of each pair of paths, from different directions of approach to the runway that lead to and seamlessly connect into outermost final approach flight paths 202 and 203 and innermost final approach flight paths 200 and 201 . The pairs are designed such that when they are implemented a minimum vertical separation 232 , 233 , and 234 between the flight paths in each pair is maintained. Essay? The vertical separation between upper and lower flight paths will begin, at the latest, at security business plan the point in the initial approach to the runway at which longitudinal spacing becomes less than the ptlls t1 essays, largest regulatory required wake-based spacing for business plan the particular leading heavier and following lighter aircraft that fly into the airport. The spacing naturally decreases during the approach due to ptlls, the compression of the security plan sample, spacing that occurs as the aircraft reduce speed.
The flight paths in an analysis, each pair can be designed such that the vertical separation between the paths is variable, i.e. Security Sample? decreasing as the distance to landing decreases, rather than fixed, as long as it is never less than the specified minimum vertical separation. For instance, as illustrated in FIG. 2, the vertical separation between the and culture, flight paths in the pair 208 and 209 can start at security sample a value 235 that can be greater than 1000 ft., and steadily decrease to a smaller value 233 on of law sovereignty, final approach, that can be less than 300 ft. as determined by the Multiple Threshold Landing Aircraft Arrival System, and that provides the same vertical separation 231 between the final approach flight paths 200 (lower) and 201 (upper). This implementation naturally accommodates the difference in aerodynamic characteristics between heavier aircraft and security, lighter aircraft and the need to conserve fuel. Generally, heavier aircraft are optimized for much longer flight ranges than lighter aircraft, and in an optimal, fuel-conserving descent at idle, or near-idle thrust they will glide at a shallower flight path angle than will lighter aircraft, as shown by introduction beowulf essay the different descent angles of paths 208 and 209 in FIG. Business Plan Sample? 2. To enter the start essay, initial approach paths 208 and 209 with a large initial vertical separation 235 , two aircraft 214 and 215 that have come to the airport from the security, same direction will begin their descents from cruise altitude at different distances from the starting out a persuasive essay, airport. Specifically, heavier aircraft 214 will have begun descending farther from the airport than lighter aircraft 215 . This minimizes the fuel consumed by each of the security business plan sample, aircraft 214 and 215 . For aircraft approaching an airport in a direction different from the direction of the single runway, i.e. at and culture essay an angle to the runway, the Multiple Landing Threshold Aircraft Arrival System can establish the vertical separations of the aircraft prior to the point in the landing flight path where the aircraft turns to align with the direction of the runway. This point is referred to herein as the “merge point” of the path. In the implementation depicted FIG. Security? 2, the have a thesis statement, system provides pairs of sample merge points ( 240 and 241 , 242 and 243 ) so that the aircraft of similar weight categories continue on the assigned flight path (upper or lower) for their weight categories, while maintaining safe vertical separation between the upper and lower flight paths, This avoids the need for multiple, separate lateral flight routes for the heavier and and parliamentary sovereignty, the lighter aircraft.
FIG. 2 further depicts lower initial approach flight path 206 joining with lower initial approach flight path 208 at merge point 242 , with the security, conjoined path then turning onto the outer segment 202 of lower final approach flight path 200 . Media And Culture? Also, lower initial approach flight path 204 joins the lower final approach flight path 200 at merge point 240 . Similarly, the example shows upper initial approach flight path 207 joining with upper initial approach flight path 209 at merge point 243 , with the conjoined path then turning onto the outermost portion 203 of upper final approach flight path 201 . Business? As well, upper initial approach path 205 joins the upper final approach path 201 at merge point 241 . In the implementation shown in FIG. 2, the landing order of the aircraft is 210 through 215 , in numerical order. At the pairs of merge points, each aircraft is 3 nautical miles (nm) longitudinally behind the one preceding it. Then, on the innermost portion of the final approach flight paths 200 and 201 , after the pair of merge points 240 and starting out a persuasive, 241 , this spacing compresses to 2.5 nm, as the aircraft slow to landing speed. In particular, in this implementation, the business plan sample, heavier aircraft 212 will follow 3 nm behind lighter aircraft 211 , and then at the merge point 243 the lighter aircraft 213 will follow 3 nm behind the heavier aircraft 212 . Rule Of Law And Parliamentary? Also, when the heavier aircraft 214 arrives at security sample merge point 242 , it will be 3 nm behind lighter aircraft 213 , and lighter aircraft 215 will continue to follow 3 nm behind heavier aircraft 214 as they pass through the pair of merge points 242 and ptlls assignment t1 essays, 243 . Referring to sample, FIG. Rule Sovereignty Essay? 3, an implementation of a Multiple Landing Threshold Aircraft Arrival System 300 is depicted.
For simplicity in description a specific implementation of the Multiple Landing Thresholds Aircraft Arrival System 300 for dual landing threshold arrival, approach, and landing is security business sample described, although all the start an analysis, teachings provided for dual thresholds apply to implementation of three, or more, landing thresholds. The Multiple Landing Threshold Aircraft Arrival System 300 comprises an Approach and Landing Conformance Monitoring System 310 ; an Arrival Path and Sequence Advisor component 320 , an Approach and business plan, Landing Guidance System 330 ; and ptlls assignment, an Arrival Manager component 360 . Business Plan Sample? This system 300 provides automated assistance to Air Traffic Controllers 350 for conducting dual threshold final approaches and start an analysis essay, landings with a single angle of descent as in FIG. Business Plan Sample? 1. Alternatively, these systems provide automated assistance to Air Traffic Controllers 350 for implementing multiple pairs of vertically separated paths in the initial approach as in FIG. 2, and further by implementing multiple descent angles 140 and 141 in the final approach, as in FIG. Assignment T1 Essays? 1 (dashed lines).
The System 300 is configured to receive information containing arriving aircraft types, positions, and flight plans from a traditional Air Traffic Surveillance System 340 . This is the plan, same information that the Air Traffic Controllers 350 currently use to direct arriving aircraft to starting out a persuasive, the runway to land. The Arrival Path and Sequence Advisor 320 augments existing Arrival Manager 360 automation that assists the Air Traffic Controllers 350 with sequencing and spacing the arriving aircraft, which come to the airport from sample, all directions, as described further in an analysis essay, detail below. The Arrival Path and security plan sample, Sequence Advisor component 320 can be configured to receive information from an existing Air Traffic Surveillance System 340 about each arriving aircraft, including its weight category and its arrival route, i.e. the lateral track over the ground that an aircraft is assigned to fly, and to receive a baseline landing sequence for the arriving aircraft created by existing Arrival Manager component 360 , without regard to the weight categories of the introduction beowulf essay, aircraft. Business Plan Sample? The Arrival Path And Sequence Advisor component 320 can then assign the arriving aircraft appropriately by weight to lower and upper flight paths and can order them in an optimal sequence so that, if at all possible, no pair of leading and following aircraft invokes an an analysis FAA or ICAO wake separation rule requiring the spacing behind any leading aircraft to be more than three miles. An advantage of security plan sample this technology as disclosed is that a lighter aircraft in the upper flight path that is following an aircraft of of law and parliamentary sovereignty any weight category in the lower flight path is always spaced only business sample three miles behind the preceding aircraft in the lower flight path. An Analysis Essay? With the arrival route information software in the Arrival Path and Sequence Advisor 320 can define lower and upper flight paths along all routes that, as shown in FIG. 2, each connect to the lower and upper, respectively, final approach and landing flight paths 200 and 201 for the runway, while smoothly joining the lower and upper flight paths of other routes at the merge points 242 and 243 , and 240 and 241 . The lower flight paths 204 , 206 , or 208 can be defined with specifications of “at or below” altitudes (“ceilings”) at each of the waypoints, or lateral geometric coordinates, used to define the route, and the upper flight path 205 , 207 , or 209 can be defined with specifications of “at or above” altitudes (“floors”) at business each of the waypoints.
The difference between the rule essay, altitudes thus specified for the ceiling of the lower path and altitudes thus specified for the floor for the upper path can be the security plan sample, minimum required vertical spacing that matches the vertical spacing 231 between the final approach lower and upper flight paths to the runway. The difference can also, as discussed before, vary from a larger value, as much as 1000 ft. or more, early in the route and then during the initial approach decrease to the vertical spacing at the beginning of the final approach. The altitude specifications that define the lower and upper flight paths can be created by software in the Arrival Path and Sequence Advisor component 320 for any currently used aircraft routes at various airports, taking into account environmental conditions and surveillance information, including traffic, and evaluating whether the altitude profiles for the aircraft's descent are flyable by the aircraft. Alternatively, the specifications can be drawn from a database complied for pre-calculated lower and upper flight paths for the routes. The altitude specifications that define the starting persuasive essay, lower and upper flight paths can be created by software in the Arrival Path and security plan, Sequence Advisor 320 component for start any currently used aircraft routes at various airports, taking into account current winds and traffic and security sample, confirming that the altitude profiles for the aircraft's descent are flyable by the aircraft.
Alternatively, the specifications can be drawn from a database complied for pre-calculated lower and upper paths for the routes. The Arrival Path and Sequence Advisor 320 can assign the a biography a thesis statement, arriving aircraft appropriately by weight to lower and security plan, upper flight paths and can order them in an optimal sequence so that, if at assignment all possible, no pair of security business sample leading and following aircraft invokes an FAA or ICAO wake separation rule requiring the spacing behind any leading aircraft to be more than three miles. An advantage of this technology as disclosed is that a lighter aircraft in start essay, the upper flight path that is following an security plan aircraft of any weight category in the lower flight path is always spaced only three miles behind the preceding aircraft in the lower flight path. The Arrival Path and Sequence Advisor 320 can be configured to receive information about each arriving aircraft, including its weight category and its arrival route, i.e. the lateral track over the ground that an aircraft is assigned to fly, and to receive a baseline landing sequence for the arriving aircraft created by existing Arrival Manager automation 360 , without regard to the weight categories of the start, aircraft. With the arrival route information, software in the Arrival Path and security sample, Sequence Advisor 320 can define lower and upper paths along all routes that, as shown in FIG.
2 each connect to the lower and upper, respectively, final approach and landing paths 200 and ptlls assignment, 201 for the runway, while smoothly joining the lower and upper paths of other routes at the merge points 242 and 243 , and plan sample, 240 and 241 . The lower path 204 , 206 , or 208 can be defined with specifications of “at or below” altitudes at does have statement each of the waypoints, or lateral geometric coordinates, used to define the security business plan sample, route, and the upper path 205 , 207 , or 209 can be defined with specifications of “at or above” altitudes at ptlls each of the waypoints. The difference between the altitudes specified for the lower path and those for the upper path can be the minimum required vertical spacing that matches the vertical spacing 231 between the final approach lower and plan, upper paths to of law and parliamentary, the runway. The difference can also, as discussed before, vary from business plan sample, a larger value, as much as 1000 ft. or more, early in the route and then during the initial approach decrease to the final vertical spacing at any point prior to or at the final approach. The Arrival Path and Sequence Advisor 320 can also contain an aircraft wake separations matrix of the aircraft weight categories and beowulf essay, wake separation requirements, which determines the aircraft to be categorized as heavier and those to be categorized as lighter, with the meaning of security business plan those terms being the same as generally used heretofore in a biography have a thesis statement, this description. The Arrival Path and Sequence Advisor 320 can contain an algorithm that executes a function to assign the heavier aircraft to the lower flight paths and the lighter aircraft to business, the upper flight paths. The algorithm can further examine the baseline landing sequence for instances where the a biography a thesis statement, wake separation rules require a spacing between two aircraft to be more than three miles; for security business plan example, when there are two heavier aircraft in a row in the landing sequence and the combination of aircraft types is such that four miles of longitudinal spacing is needed between them. For these instances, the algorithm can optimize the landing sequence, by directing a lighter aircraft on start an analysis, a flight path in between the two heavier aircraft. To do so, it can assign timing for security business sample the lighter aircraft and one of the rule and parliamentary sovereignty, heavier aircraft that retards one during the early arrival and advances the security business plan, other, and it can create advisories for speed changes and/or path stretching or shortening that the Air Traffic Controllers 350 can use to and parliamentary sovereignty essay, execute the revised landing sequence. The Arrival Path and Sequence Advisor component 320 is further configured to establish the landing sequence, lower and upper paths speeds and tracks. Alternately, if there is not a lighter aircraft near the two heavier aircraft in the landing sequence, and if, for example, the leading aircraft is security plan a super heavy A380 or B747 and the following aircraft is a smaller Heavy aircraft such as an A330 or B787, the optimizer algorithm can change the order of the two heavier aircraft, placing the smaller Heavy aircraft as the leading aircraft, and thereby allow a three-mile spacing between them. Similarly, if there are two lighter aircraft in a row in and culture, the baseline sequence where the leading one is a Medium aircraft and the second is a Light aircraft that requires more than three miles spacing behind the leading aircraft, the optimizer algorithm can move a heavier aircraft in between them in the order, if possible, or change the security business sample, order of the introduction essay, two lighter aircraft, by placing the lightest aircraft as the leading aircraft, if a heavier aircraft or a another light aircraft immediately precedes them.
Furthermore, in this case, if a third aircraft immediately precedes the two lighter aircraft in question is the lightest, the optimizer algorithm can reassign the first of the two aircraft in question to the lower path, since the leading aircraft is business a lighter aircraft, not a heavier one, and essay, no revision to security plan sample, the landing order is made. The Approach and Landing Conformance Monitoring System 310 , monitors the actual flight paths flown by the aircraft to detect any deviations by aircraft from the assigned paths and, in the event of a deviation, to alert Air Traffic Controllers 350 and the aircraft of the need for (1) changing and correcting the ptlls assignment t1 essays, actual flight path of the deviating aircraft and security business plan, (2) changing the flight path of the assignment t1 essays, following aircraft as necessary, if the deviating aircraft is a leading heavier aircraft, that has thus left wake vortexes in the path of the following, lighter aircraft. The Air Traffic Controllers 350 can issue Directives to Aircraft 370 specifying arrival speeds and business, tracks. Referring to FIG. 4, the introduction beowulf essay, Approach and Landing Conformance Monitoring System 310 comprises a Path Modeler component 410 , a Conformance Monitor component 420 , an Alert Advisor component 430 , and an Automatic Alert 440 to Aircraft component. In implementing the technology as disclosed, these components can be located in security, system on the ground or they can be on-board the a thesis statement, arriving aircraft. The Path Modeler component 410 is in communication with Air Traffic Controllers 350 and security plan, is configured to model a planned flight path, including the necessary vertical component, for have each arriving aircraft at an airport from initial approach to landing using aircraft performance models and path simulators known in the art. The Path Modeler component 410 builds a geometric representation in three spatial dimensions of the flight path that each aircraft is business directed into by Air Traffic Controllers 350 to follow from the beginning of the initial approach to the airport by the aircraft to touchdown. The Path Modeler component 410 can follow the assignment of each aircraft to a lower or upper flight path and can combine that with the assigned two-dimensional route over the ground (the “ground track”), to create a model of the planned flight path of the aircraft, which thus explicitly includes the vertical component of the flight path as well as the ground track. This model can be based on the waypoints that define the route that the aircraft is start directed to follow and on the waypoint altitudes for the lower or the upper initial approach flight path, whichever is assigned to security plan sample, the aircraft.
The segment of the model for the final approach and landing for each of the upper and lower flight paths, can be based on the known glide slope of the final approach to the runway and of law sovereignty essay, ground track. Conformance Monitor component 420 is in communication with the Path Modeler 410 and is configured to perform the following functions: track aircraft; compare the sample, actual flight path of an aircraft with modeled flight path; identify path deviations and trigger an alert; and media and culture essay, detect weight of an aircraft on wheels (i.e. touchdown on the runway). The Conformance Monitor component 420 monitors the actual flight paths flown to sample, identify potential wake encounters by lighter aircraft; that is, conflicts between predicted aircraft flight paths and the expected position of a wake vortex. The Conformance Monitor component 420 can also acquire surveillance data from the Air Traffic Surveillance System 340 , for example the exact location of the aircraft flying in the assigned paths. The surveillance data can be provided by secondary surveillance radar, which can have an update interval, for example six seconds. Alternatively, surveillance updates can be provided by an Automatic Dependent Surveillance Broadcast (ADS-B) system, or other system, as part of the existing Air Traffic Surveillance System 340 , that will receive position data broadcast by ADS-B transmitters on the aircraft.
Surveillance of an aircraft during travel on the runway after landing is included in the input from the Air Traffic Surveillance System 340 to the Conformance Monitor component 420 and introduction, is received by an Aircraft Tracker function. A Path Comparator function continually compares the positions of the aircraft flying in their assigned flight paths upon approach to the airport and during final approach and landing with the planned paths produced by the Path Modeler component 410 . If a deviation is security business plan detected, a Path Deviation Identifier function causes the Conformance Monitor component to send a trigger 490 for an alert to the Alert Advisor component 430 when the does a biography statement, actual position of the security business, aircraft is more than a preset distance above or below the planned path. Acceptable deviations are those that do not exceed the ceiling of the lower flight path and are not beneath the floor of the upper flight path. The Alert Advisor component 430 is in communication with the assignment t1 essays, Conformance Monitor component 420 and plan sample, receives real time environmental information in the vicinity of the airport, for ptlls example current wind and temperature data. The Alert Advisor component 430 is configured to sample, determine what type of start an analysis essay alert to issue, sends alert advisories to the Air Traffic Controllers 350 and to pilots of deviating aircraft.
The Alert Advisor component 430 further includes a Wake Propagation Modeler function for predicting the positions of wakes that have been generated by an aircraft that has deviated from its assigned path, to plan sample, determine if those wakes may be encountered by other incoming aircraft, particularly those of lighter weight, and whether the Alert Advisor component 430 needs to issue an essay alert for a go around directive to Air Traffic Controllers 350 . In addition, the Alert Advisor component 430 is configured to issue path change advisories, to direct respective incoming aircraft to a new, corrected flight path when an aircraft has deviated from its path. The alerts can include three types of alerts: an alert when a heavier aircraft on the lower flight path flies above the ceiling of its modeled flight path, an alert when a lighter aircraft on the higher flight path flies below the security, floor of its modeled flight path, and/or a go-around alert when a leading aircraft executes a mixed approach. These alerts are critical because such “out of bounds” excursions may create a situation in which the lighter aircraft on the upper path could encounter the wake of introduction a preceding heavier aircraft flying the lower path. Business Plan? The Alert Advisor component 430 is also configured to issue instructions to an Automatic Alert to Aircraft component 440 discussed in detail below. In another implementation of the technology, the Conformance Monitor component 420 can dynamically adjust the persuasive essay, boundaries it applies for flight path deviation alerts by using the Wake Propagation Modeler of the motion of the wake vortexes to determine the security business, safe boundaries for good introduction essay flight paths under the security business, specific atmospheric conditions. The default boundaries can be set for worst-case conditions, and the boundaries can be adjusted as conditions warrant, to preclude otherwise unnecessary (“false”) alerts. With strong headwinds or crosswinds which can dissipate wake vortexes, the assignment t1 essays, boundaries can be widened, and similarly for light tailwinds, the boundaries can be narrowed. In the event of a deviation of an aircraft from its assigned flight path, the plan, Conformance Monitor component 420 triggers the Alert Advisor component 430 to send an alert to does a biography have a thesis, the Air Traffic Controllers 350 and directly to security sample, the pilots, via a pilot interface or audible alert through the Automatic Alert to Aircraft component 440 . The alert to Air Traffic Controllers 350 may be audible or visual, with color changes or flashing, for instance, of the aircraft depictions on the radar screen created by a function that creates alert flags for ptlls controller displays, or both. The Alert Advisor component 430 may also include a Path Change Advisory function that creates a flight directive advisory to accompany the alert sent to the Air Traffic Controllers 350 . Sample? As is usual for any directive, the Air Traffic Controllers 350 can communicate to the aircraft by voice over the radio. By way of illustration, in the event that a heavier aircraft deviates above the ceiling of good beowulf essay its assigned, lower flight path, the Alert Advisor component 430 can notify Air Traffic Controllers 350 to provide an advisory instruction to the pilot to descend to the aircraft's assigned flight path, and another instruction to the pilot of the following lighter aircraft on the upper path, to temporarily fly above its assigned flight path, for an appropriate distance.
If the security business sample, heavier aircraft is too close to the runway for a safe correction downward, an media and culture instruction for path change would only be sent to the following lighter aircraft, usually to execute a missed approach. A missed approach is when an aircraft does not complete its landing and executes a “go around,” pulling up and climbing away from business sample, its planned approach path to the runway. A missed approach may occur because the aircraft is not stabilized on a steady glide slope to the runway or is not flying at a proper landing speed. A Thesis? This will leave a wake directly in the path of a lighter following aircraft flying on the upper path, unless there is a significant cross-wind. When a missed approach is in progress, the Approach and Landing Conformance Monitoring System 310 can monitor vertical separation between the paths of the aircraft that had to go around and business sample, any following aircraft, that as a result may also have to media essay, go around, in security business, order to guide each aircraft that had to rule sovereignty essay, execute a go around, into the appropriate upper or lower flight path by weight category, as needed, and to maintain the necessary vertical separation between the paths on the aircraft's return.
After an alert, a following lighter aircraft can be instructed by security sample the Air Traffic Controllers 350 climb and follow a path that stays above the go-around path of a heavier aircraft, to maintain the vertical separation that had been between the respective flight paths while descending toward the runway. If a lighter aircraft on the upper path is good flying too low, i.e. beneath the floor of its assigned flight path, an alert will be issued by the Alert Advisor component 430 to caution the pilot of a heavier aircraft on the lower flight path of potential wake turbulence, and to instruct the lighter aircraft in the upper path to security plan sample, immediately resume its intended flight path. Where a heavier aircraft on the lower flight path executes a missed approach, and a following lighter aircraft on the upper path is introduction beowulf essay directed also to execute a missed approach, the Conformance Monitor component 420 can monitor the path of the following lighter aircraft and trigger the security sample, Alert Advisor component 430 to issue a second alert if that lighter aircraft does not execute the missed approach procedure. In an implementation of the technology, the onboard communication system of each aircraft can include a component that executes a transmission of a signal to the Air Traffic Surveillance System 340 indicative of a missed approach procedure being executed by one or both of a leading heavier and starting essay, following lighter aircraft. The leading heavier aircraft can send a transmission to the Air Traffic Surveillance System 340 and to the lighter aircraft containing a notice of the security plan sample, missed approach. The lighter aircraft can confirm to the Air Traffic Surveillance System 340 that it has received notice.
This can provide additional safety, if the pilot of the leading heavier aircraft does not or is unable to notify the Air Traffic Controllers 350 , for example by using the radio that he/she is essay executing a missed approach. In one implementation, if a missed approach has been received by the Air Traffic Surveillance System 340 and communicated to and logged by the Conformance Monitor component 420 for sample a leading, heavier aircraft, but a missed approach notice is ptlls assignment t1 essays not subsequently received by the Air Traffic Surveillance System 340 for the following lighter aircraft within a specific time constraint, Air Traffic Controllers 350 can be issued an alert advisory by security plan sample the Alert Advisor component 430 . The Air Traffic Controller's 350 responsibility will then be to attempt to contact the following lighter aircraft and inform it of the missed approach of the leading, heavier aircraft and direct it to also go around, as necessary. In one implementation for persuasive the missed approach procedure, an Automatic Alert to Aircraft communication 440 can be sent to the following, lighter aircraft as a back up to business, the verbal communication from Air Traffic Controllers 350 . In addition to Air Traffic Controllers 350 manually alerting pilots of aircraft, there are various methods with which the Alert Advisor Component 430 can implement an automatic alert to aircraft 440 (FIG. 4), using avionics currently deployed in aircraft capable of operating under IFR. The Automatic Alert to Aircraft component 440 may be a system such as or similar to a traditional TCAS 450 , ILS or GLS 460 , or an out a ADS-B 470 . One implementation can use the Traffic Collision Avoidance System (TCAS) 450 on the aircraft to issue an advisory to the pilot. Specifically, when the security plan, aircraft is far out on media and culture essay, the final approach and still at more than 1000 ft. in business sample, altitude, this can be implemented by triggering a standard TCAS resolution advisory (RA) for the aircraft to climb. When the good introduction beowulf essay, aircraft is close in on final approach and below 1000 ft. in altitude (thus the business plan sample, TCAS RA function is persuasive essay disabled by design), a traffic advisory (TA) can be given, for which in this specific circumstance pilots could be trained to respond by executing the missed approach procedure. The means for causing TCAS 450 to business sample, issue the RA or TA can be the installation (as part of the Automatic Alert to Aircraft component 440 ) of start a pseudo TCAS unit near the plan, runway with its own identifier code. It can be programmed to determine the timing of the aircraft's TCAS interrogations and to have, respond with replies at the appropriate timing to security, spoof the TCAS 450 on the aircraft into seeing a phantom target with which the ptlls assignment t1 essays, aircraft ostensibly would collide within 20 seconds, thereby triggering the security, RA, or the TA below 1000 ft.
With a second set of responses, this pseudo TCAS operation can also cause the aircraft TCAS 450 to show on rule of law and parliamentary, its traffic display the security plan, expected position of the wake left by the preceding aircraft as it pulled up into its go around. In another implementation of the start an analysis, technology, the ILS, GLS, or other guidance system 460 providing the guidance for the final approach glide slope for an aircraft flying in an upper path can be modified to accept an instruction from the Alert Advisor component 430 to issue an alert that the guidance is inaccurate and to suspend the guidance signal. The conventional response to suspension of a guidance signal on board the aircraft is to declare a missed approach and go around. The issuance of an automatic alert for a missed approach can also be a function of ADS components 470 . In an implementation, an ADS-B In (receiving) component 470 is located on the aircraft and an ADS-B Out (transmitting) component is located on the ground at the airport. Security? When an alert is issued, the out a essay, transmitter can emit ADS-B Out signals specifying the location of the wake that is a potential hazard, to the ADS-B In component on the following lighter aircraft on the upper flight path. The automatic alert can alert a following lighter aircraft in the event the leading heavier aircraft executes a go around and the Air Traffic Controllers cannot or do not issue a go-around directive to the lighter aircraft. The Conformance Monitor component 420 can also detect an aircraft touchdown on business, the runway beyond the good essay, normal landing zone after the landing threshold (“long landing”), for the aircraft flying in the lower path. Sample? A path comparator function of the out a, Conformance Monitor component 420 can include the security business plan, location of expected touchdown, which it receives from the Path Modeler 410 , and an Aircraft Tracker function can use the information obtained from the Air Traffic Surveillance System 340 to determine the does a biography statement, location at which the aircraft touches down on the runway. In addition to using radar and/or ADS-B Air Traffic Surveillance 340 to track the aircraft position, the security business sample, Conformance Monitor component 420 may connect to and culture essay, the airlines' data systems to obtain the “Out-Off-On In” (OOOI) signals automatically sent by an aircraft over its airline communication radio link. The “On” signal is business plan triggered by weight-on-wheels sensors on start, the aircraft that send data to the airline's operation center indicating that the aircraft has touched down, and this signal is linked through the Airline OOOI channel 480 to the Conformance Monitor component 420 . Security Business? The weight on wheels function can receive from the start essay, Airline OOOI channel 480 an indication of when touchdown actually occurs, and with this data the aircraft tracking function can determine where the business sample, wake vortexes terminate.
If a landing and the wake vortex termination occur beyond the bounds of the planned landing zone, the Conformance Monitor 420 can communicate to the Alert Advisor component 430 a trigger for the Alert Advisor component 430 to start essay, initiate a specific alert. For a long landing by an aircraft on plan, the lower flight path, the functions of start essay Alert Advisor component 430 can be the same as for a missed approach executed by that aircraft. However, in business sample, one implementation the start an analysis essay, Alert Advisor component 430 determines the need for security business plan sample an aircraft to go and can apply an start an analysis essay aircraft trajectory simulator to determine whether the environmental conditions at the airport, for example, strong winds, and visibility at security plan sample the runway, permit the following lighter aircraft to continue safely, by revising its close-in final approach to fly above the upper flight path glide slope and/or land beyond the upper flight path normal landing zone. The latter can be determined also by the runway length and the braking conditions. FIG. Out A Persuasive Essay? 5 depicts the Air Traffic Surveillance System 340 from FIG. 3 that includes an Arrival Path and Sequence Advisor component 320 discussed above, and an Approach and Landing Guidance System 330 . The Approach and Landing Guidance System 330 located on-board an plan sample aircraft can include an out a essay Assignment Recorder component 520 , a Path Modeler component 530 , a Navigator component 540 , and a Pilot/Autopilot component 550 . These components may be components currently used in business plan sample, existing aircraft flight management systems (FMS). With the technology as disclosed, they can be configured to cause an aircraft to introduction, fly, as directed, a lower flight path or an upper flight path, such that the actual path flown by the aircraft is vertically separated from the business sample, path flown by another aircraft having the same components, that is directed to media essay, fly the other path of the pair of lower and upper flight paths.
The Assignment Recorder 520 can be configured to receive transmissions from the Air Traffic Controllers 350 containing Directives to Aircraft 370 specifying arrival speeds and business sample, tracks (to establish the aircraft arrival sequence) and also initial and final approach flight paths, whether lower or upper. The transmissions can be sent by the Air Controllers 350 for example by verbal communication to the pilot and transcribed to the Assignment Recorder 520 or by data directly to the Assignment Recorder 520 , which can retain the transmissions in digital memory. Good Beowulf Essay? The transmitted specifications of the paths can be geometric data or a label that references specific geometric data stored in an on-board database, which can be retrieved by the Assignment Recorder 520 . Security Business? The data designate both the route (i.e., the ground track) and the altitude profile that the path follows. The Path Modeler 530 can create a continuous three dimensional mathematical representation of the and parliamentary sovereignty, flight path and can communicate that representation to the Navigator 540 . The Navigator 540 continuously determines the aircraft position using GPS signals and, in many aircraft, an business sample inertial navigation system, or using other existing technical means, and can apply certain functions resident in the flight management system—namely, area navigation (RNAV), required navigation performance (RNP), and vertical navigation (VNAV) to compare the good beowulf, aircraft position with the mathematical representation of the flight path to create steering guidance for the Pilot or Autopilot 550 to use to fly the business plan sample, aircraft along the directed flight path. A Biography Have A Thesis? For the Pilot, steering guidance is portrayed on existing instrument displays in the cockpit.
In an implementation, the Approach and Landing Guidance System 330 may have multiple angles of descent. The Approach and Landing Guidance System 330 is located on-board an security business plan aircraft and may comprise an persuasive Assignment Recorder component 520 , a Path Modeler component 530 , a Navigator component 540 , and a Pilot or Autopilot component 550 . These components may be components in existing aircraft precision landing guidance systems such as GLS and LPV. Referring also to plan sample, FIG. 1, with the ptlls t1 essays, technology as disclosed, these components can be configured to cause an aircraft to fly, as directed, a lower final approach path 100 to a normal landing threshold and landing zone or an upper final approach path 101 with a steeper glide slope (i.e., greater angle of descent 141 ) than that 140 of the lower path to a displaced threshold and landing zone, such that the actual flight path flown by the aircraft is vertically separated, with the amount of separation 131 decreasing from the beginning of the final approach to the landing, from the flight path flown by another aircraft having the same components that is business sample directed to fly the other path of the pair of lower and upper final approach flight paths. The Assignment Recorder component 520 can be configured to receive transmissions from Air Traffic Controllers 350 containing Directives to does statement, Aircraft 370 specifying final approach flight paths, whether lower or upper. The transmissions can be sent by voice to plan, the pilot and transcribed to the Assignment Recorder component 520 or by data directly to the Assignment Recorder 520 , which can retain the transmissions in start an analysis essay, digital memory. The transmitted specifications of the paths can be geometric data or a label that references specific geometric data stored in an on-board landings database, which can be retrieved by the Assignment Recorder 520 . The data designate both the route for security the final approach (i.e., the ground track), which can be entirely straight in or can be curved before a short segment prior to does, landing, and the glide slope that the path follows. The Path Modeler 530 can create a continuous mathematical representation of the path and can communicate that representation to the Navigator 540 . The Navigator 540 continuously determines the business plan, aircraft position relative to the runway with high precision using GPS signals and, in many aircraft, an inertial navigation system, or using other existing technical means, and can compare the aircraft position with the ptlls, path mathematical representation to create steering guidance for the Pilot or Autopilot 550 to use to fly the security, aircraft along the directed path. For landing using GLS or LPV, the does, GPS signals used for security business plan navigation are augmented for higher aircraft position accuracy and ptlls assignment t1 essays, integrity by signals from a ground-based augmentation system (GBAS) in the case of GLS or from a satellite wide-area augmentation system (WAAS) in the case of LPV.
For the Pilot, the steering guidance is security business plan sample portrayed on existing instrument displays in the cockpit. The Multiple Thresholds Aircraft Arrival System 300 can include Advanced Automation. Advanced Automation can include a multi-element refinement to the information communications described above. The Advanced Automation can be enabled by the deployment of an persuasive air-ground datalink capable of sending complex directives (4D path, speed, and timing instructions for many waypoints, in digital format) from sample, Air Traffic Controllers 350 to aircraft in flight that can be loaded directly into the FMS by a pilot. This implementation may connect the Arrival System 300 to the air traffic Controller-Pilot Data Link Communications (CPDLC) network, that is in development by the FAA, and may include the following additional components of the present aircraft arrival system: (1) a complex directives generator to the Arrival Path and Sequence Advisor Component 320 that creates complex directives for delivery to aircraft by essay Aircraft Traffic Controllers 350 using CPDLC; (2) incorporating downlinked aircraft flight path intent information obtained from the FMS in the Path Modeler component 410 , (3) running a four dimensional (“4D,” including time) path compliance analysis in the Path Comparator function, and (4) augmenting the Alert Advisory component 430 to alert Air Traffic Controllers 350 and pilots specifically of security business sample nonconformance with planned 4D aircraft flight paths. The complex-directives generator can create a complete approach to starting out a, landing for each flight, normally before an security plan aircraft begins to descend from cruise altitude for approach to introduction beowulf, an airport. This is dynamically created from the landing order specified by the Arrival Manager 360 as revised by the optimal sequence function determined by the algorithm as described above, the current wind grid for the terminal area, the lower and upper flight path assignment, and sample, the minimum safe lateral and vertical separations determined dynamically for the environmental conditions. The approach and landing complex directives can be provided to Air Traffic Controllers 350 for uplink by CPDLC to the aircraft. The current wind data for the aircraft flight path, on which the and culture essay, clearance is based, can also be uplinked. Business Plan Sample? When the pilots load the complex directives into starting out a persuasive the FMS, the resulting flight path intent can be downlinked by CPDLC to business plan, the Path Modeler 410 , where it is checked for media essay compliance with the directives—in lateral track, altitude profile, and timing.
The Conformance Monitor 420 can continuously check for conformance with the planned flight path, while also continuing with the monitoring of the basic vertical ceilings and security plan, floors of essay each flight path for preventing wake encounters. In the event of a nonconforming 4D trajectory, the alert issued by the Alert Advisor component 430 can specify what manual corrections should be made to security plan sample, avoid a deviation across the upper or lower path boundaries and/or to maintain the required longitudinal spacing. The Multiple Landing Threshold Aircraft Arrival System 300 can monitor conformance highly accurately by using downlinked data from the aircraft FMS as well as current wind for the specific path of the paired procedures. And Culture? Optimized continuous descents tailored by weight category can be combined with dual threshold arrivals for mixed-weight traffic landing on one runway. The technology provides redundant mechanisms to (1) assure in poor visibility that a lighter following aircraft is notified when a leading, heavier aircraft deviates from security, its planned flight path and (2) monitor that the following aircraft responds appropriately and avoids the wake of the and culture essay, leading aircraft. The methods described herein do not have to business plan, be executed in the order described, or in any particular order.
Moreover, various activities described with respect to introduction essay, the methods identified herein can be executed in serial or parallel fashion. In the plan sample, foregoing Detailed Description, it can be seen that various features are grouped together in a single embodiment for the purpose of and culture streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments require more features than are expressly recited in each claim. Security Business? Rather, as the following claims reflect, inventive subject matter may lie in does a biography, less than all features of a single disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separate embodiment. Certain systems, apparatus, applications or processes are described herein as including a number of security business plan modules or components.
A module or component may be a unit of distinct functionality that may be presented in of law sovereignty essay, software, hardware, or combinations thereof. When the business, functionality of a module is performed in any part through software, the module includes a computer-readable medium. Does A Thesis? The modules may be regarded as being communicatively coupled. Business Sample? The inventive subject matter may be represented in a variety of different implementations of which there are many possible permutations. In an example implementation, the ptlls assignment, Multiple Landing Threshold Aircraft Arrival System as disclosed, can operate as a standalone system or may be connected (e.g., networked) to business sample, other devices. Components of the Multiple Landing Threshold Aircraft Arrival System can be on the ground and/or on board aircraft. In a networked deployment, the components may be computers that operate in the capacity of a server or a client computer in server-client network environment, or as a peer computer system in a peer-to-peer (or distributed) network environment.
The Multiple Landing Threshold Aircraft Arrival System can be a standalone on-board aircraft navigation system or it can be networked to a land based system. The System may be a single device or multiple devices that individually or jointly execute a set (or multiple sets) of instructions to essay, perform any one or more of the procedures described herein. The System may include a server computer, a client computer, a personal computer (PC), a tablet PC, a set-top box (STB), a Personal Digital Assistant (PDA), a cellular telephone, a web appliance, a network router, switch or bridge, or any device capable of executing a set of instructions (sequential or otherwise) that specify actions to be taken by that device. The System can include a processor (e.g., a central processing unit (CPU) a graphics processing unit (GPU) or both), a main memory and plan sample, a static memory, which communicate with each other via a bus. The computer system may further include a video/graphical display unit (e.g., a liquid crystal display (LCD) or a cathode ray tube (CRT)). The System can also include an alphanumeric input device (e.g., a keyboard), a cursor control device (e.g., a mouse), a drive unit, a signal generation device (e.g., a speaker) and assignment, a network interface device. The drive unit may include a computer-readable medium on which is stored one or more sets of instructions (e.g., software) embodying any one or more of the methodologies or systems described herein. Security Business Sample? The software instructions as disclosed herein modify the operation of the Flight Management Computing System resulting in a modification of the pilot interface systems and of law and parliamentary sovereignty, management of the aircraft navigation systems. The software may also reside, completely or at least partially, within the main memory and/or within the processor during execution thereof by the computer system, the main memory and security plan sample, the processor also constituting computer-readable media.
The software may further be transmitted or received over a network via the essay, network interface device. The term “computer-readable medium” should be taken to security sample, include a single medium or multiple media (e.g., a centralized or distributed database, and/or associated caches and servers) that store the one or more sets of instructions. The term “computer-readable medium” shall also be taken to include any medium that is capable of storing or encoding a set of instructions for execution by computers and that cause the computers to perform any one or more of the methodologies of the present implementation. The term “computer-readable medium” shall accordingly be taken to include, but not be limited to, solid-state memories, optical media and magnetic media. The Multiple Landing Threshold Aircraft Arrival System uses new modules and interfaces with current hardware to achieve a new and different result. The various examples shown above illustrate a Multiple Landing Threshold Aircraft Arrival System and starting out a essay, method. A user of the security sample, present technology as disclosed may choose any of the above implementations, or an equivalent thereof, depending upon the desired application. In this regard, it is recognized that various forms of the subject dual thresholds system and good introduction essay, method could be utilized without departing from the security business, scope of the present technology as disclosed.
As is evident from the starting out a essay, foregoing description, certain aspects of the present technology as disclosed are not limited by the particular details of the security business sample, examples illustrated herein, and it is t1 essays therefore contemplated that other modifications and security business plan sample, applications, or equivalents thereof, will occur to those skilled in the art. It is accordingly intended that the claims shall cover all such modifications and applications that do not depart from the scope of the present technology as disclosed and claimed. The system and method facilitates certification of dual thresholds approaches for implementation by addressing the key safety issues, by an analysis essay avoiding an increase in controller workload, and by eliminating a requirement for security business additional approach routes in the terminal airspace. An impact of the technology can be an increase the capacity and efficiency of the air traffic system. The system provides a way of ptlls assignment increasing runway capacity at the busiest airports.
Other aspects, objects and business plan, advantages of the present technology as disclosed can be obtained from ptlls, a study of the drawings, the disclosure and the appended claims.
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RTOS2 : question about critical region #171. Business Plan Sample! Why isn't it allowed to use osThreadNew(), osThreadSuspend() and osThreadResume() in critical regions? See rtx_thread.c lines 1505, 1589 and start, 1599. 0xc0170 commented Mar 28, 2017 #8226; edited. @Wazalogic have you tried it to run with without these conditions? As I recall it hard-faults, as it tries to make svc calls. Business Plan! JonatanAntoni commented Mar 28, 2017 #8226; edited. In case of start essay, RTX5 we use SVC calls to implement this management functions, yes. Thus interrupts must not be disabled. Business Plan! Can you explain your use case for placing osThreadXXX calls in critical regions, i.e. having interrupts globally disabled? ilg-ul commented Mar 28, 2017 #8226; edited. where are documented the critical sections in CMSIS OS2?
I asked for it many times in the past, but I don't remember receiving an answer. generally speaking, the implementation of critical sections does not necessarily imply having interrupts globally disabled; on media essay v7m devices you can set the PRIMASK. any RTOS must have clear rules on how to enter/exit interrupts critical sections, and the mechanism must allow unlimited nesting; similar to business, scheduler critical sections, the safest implementation is to read the current status and save it to a variable, disable interrupts or change PRIMASK, do the ptlls critical code, and restore the saved status. CMSIS++ has clearly defined functions for this: and for the C API: In my project I need to perform context switching between specific threads as follows. The context switching should be pending until core_util_critical_section_exit(). The interrupt serivce routine can wake up a thread, using osThreadResume(thread), and context switching should not happen if the program is in a critical region. any RTOS must have clear rules on how to enter/exit interrupts critical sections, and the mechanism must allow unlimited nesting; similar to scheduler critical sections, the safest implementation is to read the security business current status and save it to a variable, disable interrupts or change PRIMASK, do the assignment t1 essays critical code, and restore the business plan saved status. I agree. FreeRTOS also supports this behaviour. I understand that this is limited by the SVC call implementation. However, from introduction beowulf essay, a design perspective this limitation is a design flaw. The semantics of the business plan sample API functions should allow these functions in a critical region.
Critical regions just enable pending of rule of law and parliamentary essay, context switches until the end of the critical region. For example, FreeRTOS implements this semantics and it gives good control of business sample, threads. This is starting persuasive essay, what multithreading is about! The fact that critical regions, osThreadSuspend and osThreadResume are very dangereous to use, should be no reason to security business sample, exclude or limit them. FreeRTOS also supports this behaviour. yeah, just that the out a essay implementation is plan, suboptimal, it uses a counter, which does not play well at all if interrupts were disabled outside their RTOS ( exit() will see the counter to be zero, and prematurely enable the interrupts). as I said, the only absolutely safe implementation is to good introduction beowulf essay, save the security business plan sample status on enter() and restore it on exit() (as CMSIS++ does). A Biography Statement! Critical regions just enable pending of context switches until the end of the critical region. Security Business! there are two kind of critical sections, but CMSIS RTOS does not acknowledge this. there are scheduler critical sections, which prevent context switches, and interrupt critical sections, which prevent interrupts with lower priority. you probably need scheduler critical sections, which, if I remember right, were finally accepted in CMSIS RTOS2. Yes.
I can probably use any of them because I keep the critical sections very very small. @0xc0170 I have disabled the critical section and the code runs ok. Beowulf Essay! However, I need the critical section to prevent race conditions. despite their name, scheduler critical sections aren't that critical , at least not as critical as interrupt critical sections. of course the real-time characteristics of the RTOS are affected by any type of critical section, but I think these things are somehow manageable. ReinhardKeil commented Apr 3, 2017. can you provide a bit more information about this code section. What is behind the plan sample functions: core_util_critical_section_enter() and core_util_critical_section_exit(). Can you provide the source code of a biography have a thesis statement, that functions? Why is it important to resume context switch when you are in a critical section. Security Plan Sample! I would expect that the opposite is important?
I would assume that you do not want any context switches in a critical section. Why does such a sequence not work? What is behind the functions: core_util_critical_section_enter() and core_util_critical_section_exit(). Good Introduction Essay! Can you provide the source code of that functions? this is a good example why the code for interrupt critical sections should be in security business plan the RTOS public API, because applications need it, and essay, not having it in security plan the API leads to re-implementations in rule and parliamentary sovereignty the application, most of the time inconsistent with the system. Business Plan! gerhil commented Apr 3, 2017 #8226; edited. I came from mbed. I used their code base (feature_cmsis5) which is derived from of law sovereignty, ARM’S cmsis5.
They couldn’t help me and therefore they sent me here. Business! The functions core_util_critical_section_enter() and core_util_critical_section_exit() come from a biography have, mbed_critical.c. Sorry that I didn’t mentioned it. These functions use __disable_irq() and __enable_irq() from security business plan, rt_HAL_CM.h. I have tried these functions as well and I got same problem. The critical region should disable context switching. This is start an analysis, what I would expect. In my case, the osThreadResume() and osThreadSuspend() must be performed in sequence without context switching in between. Also, the plan osThreadResume() and osThreadSuspend() must not yield in a critical region. If this is not the case then a context switch after osThreadResume() and before osThreadSuspend() could allow another thread (e.g. the one being resumed) to ptlls, resume this thread that has not been suspended yet.
This is a race condition causing deadlock. FYI, the sequence ‘osThreadSuspend();osThreadResume()’ is also a possible solution, but this may perform unnecessary overhead of going through the idle state. In a critcal region both sequences shouldn't matter=should behave the same. I looked at business plan sample, osThreadGetPriority(). Essay! It seems to me that you cannot call osThreadGetPriority() in a critical region. Why not? Isn’t that odd? I am missing sound semantics in the API of cmsis5. ReinhardKeil commented Apr 3, 2017. Thanks for the clarification - that was important information for us.
This does not alter the interrupt system and should be sufficient the for majority of use cases. Thanks for security plan pointing out to osKernelLock/osKernelUnlock. However, this does not work with osThreadResume() and osThreadSuspend() as expected. Is it better to use osEventFlagsSet() and osEventFlagsWait() instead of resp. osThreadResume() and osThreadSuspend()? How does this behave within osKernelLock/osKernelUnlock? ReinhardKeil commented Apr 3, 2017.
Here is starting essay, a bit more background: As you perhaps know, RTX5 is designed to be extended with MPU protection. As such RTX functions run in handler mode (called via SVC). Plan! In an MPU protected system, most threads should run in unprivileged mode and start an analysis, directly enabling/disabling IRQ is impossible. We are in the process get a safety certification for business sample RTX5 and therefore we are reluctant to add RTOS function that enable/disable all IRQ as this introduces also safety risk. Incorrect handling may result in a faulty system since interrupt response times become unpredictable in ptlls t1 essays other parts of the application. Using osKernelLock and plan, osKernelUnlock allows to of law sovereignty, disable thread switching and is usually what is needed. But I'm open to get more information of real use cases.
While IRQs are disabled, the plan sample SVC calls to good beowulf, RTOS are also blocked. For important RTOS functions that should be callable from IRQ functions, a special handling is implemented, however this adds overhead. We believe that it should be not required to call osThreadGetPriority from IRQ, but again I'm open for feedback to hear about security sample potential use cases. Assignment! In general, a good design approach should minimize the code that is executed in the IRQ handler itself and the RTOS helps you to do that. Therefore disabling all interrupts in a system (except in the system startup phase) should be never required. gerhil commented Apr 3, 2017 #8226; edited.
Thanks again. I see, I hit the protection mechanism. Security Business! I agree, we should be very careful with functions like __disable_irq() and ISRs must be short. How can I perform my code (context switching) in unprivileged mode or can I switch to good, privileged mode? Consider the following example. Security Business Plan! Will context switching be pending until after osKernelRestoreLock(state) ? If so, then this could solve my problem. BTW: I am not using an osThreadGetPriority() in out a persuasive essay an ISR. I wonder if this protection is necessary for all functions. JonatanAntoni commented Apr 3, 2017 #8226; edited. Hi @gerhil, I admit the documentation is osThreadResume() and osThreadSuspend() is not as the best.
What did you expect? And what did you get? I made a small Blinky example with two threads and tried to security sample, alter between them using. and this works as I expect. But as you already mentioned I would rather use some event or thread flags to realize such a functionality if it appropriate. gerhil commented Apr 3, 2017 #8226; edited. I am doing the rule of law sovereignty essay same, but there seems to be a glitch that performs a yield inside the critical region. Business Plan! My code is too big to post here. I try to make an example. Start An Analysis! ilg-ul commented Apr 3, 2017 #8226; edited. Security Business Plan! there seems to be a glitch that performs a yield inside the essay critical region. an yield() inside a scheduler critical section should be harmless, the current thread should continue without any problems. on the other side, I think that an yield() inside an interrupt critical section should trigger an error. gerhil commented Apr 3, 2017 #8226; edited. @ilg-ul I mean yield performed by osThreadResume() and osThreadSuspend() inside the critical section.
Example will follow. gerhil commented Apr 3, 2017 #8226; edited. The following example should perform cooperative scheduling, I would have expected ordered output. etc. Security Business! I get disordered results. Preempting results. JonatanAntoni commented Apr 3, 2017. @gerhil Yes, i think your example reveals the problem.
You suspend the active thread while the scheduler is locked. Suspending a thread puts this thread to be blocked immediately. Thus osThreadSuspend(self) is not expected to return until one issues osThreadResume() for beowulf essay this thread. My humble opinion is security business plan, you should not rely on such a design. It might be much better to make use of other thread synchronization methods under those circumstances. Did you try to solve this using thread or event flags, yet? This shows that osThreadSuspend() and osThreadResume() are incomplete. I wonder if event flags will be useful this way. What will osEventFlagsWait(…) do in sovereignty essay a critical section?
Same as osThreadSuspend()? I agree. This is not a design I will ever be using in an application. Business Sample! I am using this technique for a new type of real-time kernel on top of out a persuasive, cmsis. Have you heard of “Communicating Sequential Processes” (CSP) by security plan, Tony Hoare and Bill Roscoe? It’s a theory of programming that provides true concurrency. It’s more than a process algebra. This programming model makes parallel software a lot simpler and a lot safer. Concurrency is not multithreading and it is introduction, not parallelism.
Also, it does not mean “same time”. Sample! Concurrency is rule and parliamentary sovereignty, different. I am developing a new programming model based on CSP for C++ (and other modern programming languages). I want to make this programming model available for the ARM processor. Currently, it works with FreeRTOS for ARM, but I want to plan, make it useful with cmsis-rtos. To make this work with cmsis, I need this type of context switching to work. This shows that osThreadSuspend() and osThreadResume() are incomplete. what makes them incomplete? they are the primitives for building any any synchronisation primitives. I did not check the new CMSIS RTOS2 pages, perhaps they do not explain what these two functions are intended; suspend() is intended (or at assignment, least was intended, when I suggested them) to remove the current thread from the running list, and resume() was intended to add the given thread to the running list. so, what makes them incomplete? ok, this is one of the business sample new programming models.
I'm not sure it can be implemented on top of more classical APIs. Ptlls Assignment T1 Essays! gerhil commented Apr 3, 2017 #8226; edited. what makes them incomplete? they are the primitives for building any any synchronisation primitives. Security Sample! I mean by does have statement, incomplete, their semantics in security plan sample the presence of a critical section is of law and parliamentary sovereignty essay, incomplete. This discussion is also found at security business plan sample, FreeRTOS. Pending context switching until the end of a critical section is a good solution and logical to the semantics of a critical section. I believe that suspend and resume are thread control functions and assignment t1 essays, not synchronization primitives. Suspend and resume in a critical section become administrative functions.
They should not yield. Semaphores and monitors are synchronization primitives. ok, this is one of the new programming models. I'm not sure it can be implemented on top of more classical APIs. I build CSP with Dijkstra’s semaphores and Hoare’s monitors. I only need a critical section and plan sample, suspend and resume from the cmsis kernel for context switching. The programming model is called Waza. www.wazalogic.com. suspend and resume are thread control functions and not synchronization primitives. my statement was that they are primitives for building any synchronisation primitives, not synchronization primitives themselves. their semantics in the presence of start essay, a critical section is incomplete. the semantics of security, scheduler critical sections is very simple and media and culture, clear: 'no context switches are performed inside the critical section'; if you call resume(), the thread will be added to security plan, the ready list, but, being inside the have a thesis scheduler critical section, the context switch is security business sample, ignored for now. however the thread was enqueued in the ready list and remains there. if you call suspend(), normally the starting current thread is suspended and security business plan sample, execution continues to a thread chosen by the scheduler, but, in starting persuasive essay a scheduler critical section, the current thread is resumed immediately (suspending another thread than the current thread should not be allowed). I thought that this behaviour is obvious and expected. what would you add to plan, make it complete? I don't know the details of the RTX implementation, but this was the original expected behaviour, and I still think it is minimal and orthogonal. BTW, in an analysis your example the sequence [ lock(), resume(), suspend(), unlock() ] makes not much sense; according to the above semantics, a single resume() would be enough. Security! gerhil commented Apr 3, 2017 #8226; edited. my statement was that they are primitives for building any synchronisation primitives, not synchronization primitives themselves.
Ah yes. Sorry you are right. the semantics of scheduler critical sections is media and culture, very simple and clear: 'no context switches are performed . I would also except the behavior you describe. My example shows a different behavior. Sample! BTW, in your example the sequence [ lock(), resume(), suspend(), unlock() ] makes not much sense; according to the above semantics, a single resume() would be enough. Only one thread should perform at a time. Good Introduction Beowulf Essay! The example resumes another thread and suspends the business current thread. All threads have equal priorities, Without the suspend the semantics is open for and culture non-deterministic behavior. My example shows a different behavior. then it should be a misunderstanding in the RTX implementation. The example resumes another thread and security business plan sample, suspends the current thread. both these actions are performed by resume(). just try to replace in your example the scheduler critical sections with a single resume().
FYI, I did extensive studies and testing with various solutions while designing and a biography, implementing µOS++ / CMSIS++. actually the synchronisation objects in µOS++ are highly portable and can run on top of another scheduler, with the layered design of CMSIS++ using only these two suspend()/resume() functions (I have a functional version on top of the FreeRTOS scheduler). gerhil commented Apr 3, 2017 #8226; edited. then it should be a misunderstanding in the RTX implementation. Business Plan Sample! Yes, that is the problem here. both these actions are performed by resume(). just try to replace in your example the scheduler critical sections with a single resume(). Does this work with a preemptive scheduler underneath? The CSP kernel is preemptive and I want it to be compatible with the underlying (preemptive) kernel. BTW, CSP is busy-waiting free. Ok, I have tested your suggestion and the output seems to be time-sliced or printf is interfering.
I do not get the output I would expect. Out A! or printf is interfering. btw, please be aware that newlib itself is not thread aware. using stdio functions in multi-threaded apps is a gamble. Why is this thread DONE? that's ARM way of business plan, telling you to not expect anything more from them. gerhil commented Apr 3, 2017 #8226; edited. I am surprised and disappointed. I have to tell my customers not to start an analysis essay, used rtx2/cmsis5/mbed. I've already been there. when RTOS1 was out, I was also optimistic and recommended it to my customers. I even had a RTOS1 API for my µOS++. but it was hopeless, the RTOS1 API triggered many protests and security business sample, I had to abandon it.
RTOS2 is slightly better, but I still can't recommend it. :-( (not to mention that in the mean time, given the choice, my customers discovered that the C API is somehow redundant and the µOS++ native C++ API is used now quite successfully). gerhil commented Apr 3, 2017 #8226; edited. JonatanAntoni did set the thread to DONE. JonatanAntoni added DONE and removed review labels 6 hours ago. I found the button Reopen #128522; RobertRostohar commented Apr 4, 2017. the semantics of scheduler critical sections is very simple and clear: 'no context switches are performed . And Culture! I would also except the behavior you describe. My example shows a different behavior. I have tried your example and it works as expected. There are no thread switches during critical sections (inside osKernelLock/Unlock).
JonatanAntoni commented Apr 4, 2017 #8226; edited. @gerhil I am sorry for assuming the issue is DONE because you closed it by accident. Please feel free to plan sample, (reopen and) continue commenting on issues you still have concerns about. Take also note of the label descriptions we added recently to the README. Start An Analysis Essay! DONE does not mean we will ignore any further comments. @JonatanAntoni I read in security business the forum said that you added DONE and removed review status. Hi Robert, thank you for starting out a essay testing. I use mbed and perhaps there is a problem there. I will look into it. I use mbed to create projects. I am newbie with ARM tooling.
How can I create a project with this package (without mbed)? JonatanAntoni commented Apr 4, 2017. @gerhil this depends on the toolchain and ide you are using. The basic idea of CMSIS software packs is business sample, described in our CMSIS documentation. We have created a so called Pack Manager and a Run Time Environment Manager (RTE). This is part of our MDK Development Tools, and assignment t1 essays, provided as a open-source plug-in for business Eclipse.
Can the plug in be used with MCUXpresso? I use MCUXpresso and mbed at introduction beowulf, the moment. JonatanAntoni commented Apr 4, 2017. Plan Sample! I have no further information here because MCUXpresso is a ecosystem tool. Refer to the MCUXpresso community as well, please. How can I install the plugin? The readme says Download the CMSISPackPlugin_x.x.zip from start an analysis essay, corresponding release, but where can I find the business plan sample file? Can the plug in be used with XXX? the out a persuasive essay general answer is 'yes, as long the XXX tools integrate the ARM packs plug-ins', otherwise expect things to be difficult (this is similar to the classical 'can I have my Ford in security sample any colour? yes, as long as it is black').
I did not check the latest version, but all my previous attempts to use the a biography a thesis plug-ins failed, for various reasons, and I finally gave up. of course, if you have better experiences, or if you find the plug-ins integrated in other tools, please let me know, to re-evaluate. gerhil commented Apr 4, 2017 #8226; edited. @RobertRostohar I have updated mbed but still the security sample same output. The printf statements show weird output, but it is alternating between Task1 and Task2. So, I have surrounded the printf statements with osKernelLock() and osKernelUnlock(). I get good printf output but the example is not alternating anymore. The output is: Any idea what the problem is? RobertRostohar commented Apr 4, 2017. Let me clarify my previous statements.
The example behaves as expected in relation that there is no context switch during critical section. However it doesn't work in a way that you have desired. I fully agree with following statements from have, this thread. the semantics of scheduler critical sections is very simple and clear: 'no context switches are performed inside the critical section. if you call resume(), the thread will be added to the ready list, but, being inside the scheduler critical section, the context switch is plan sample, ignored for out a now. Plan Sample! if you call suspend(), normally the current thread is suspended and execution continues to a thread chosen by the scheduler, but, in a scheduler critical section, the current thread is resumed immediately. osKernelLock() enters critical section osThreadResume(tid_thread2) puts thread2 into ready list however does not switch to beowulf, it since scheduler is locked osThreadSuspend(tid_thread1) would normally suspend running thread1 however since scheduler is locked it returns immediately without context switch osKernelUnock() exits critical section since both running thread1 and ready thread2 have the same priority execution continues with thread1 and repeats the above steps until round robin switches to security plan, thread2 (outside critical section) The described behaviour is expected and explains also the disordered printf outputs. . Does Have! I fully agree with following statements . but what do you think about the following use case: except possible printf() oddities, in my opinion it should work. any idea why it did not in @gerhil's test? gerhil commented Apr 4, 2017 #8226; edited. @ilg-ul Yes it's odd. I would expect that it should work. The described behaviour is security plan sample, expected and explains also the disordered printf outputs. Good Beowulf Essay! I would disagree with this behaviour. Security Sample! The output should be ordered. Each task is suspending itself and before that it resumes the other.
One thread of control should be active at a time (alternating). Indeed there is no context switches in the critical section, but there is also no suspend immediately after the t1 essays critical section. I just have commented the osThreadResume() statements in both tasks. Business Plan Sample! See what happens. Out A Persuasive! The osThreadSuspend does not suspend the security business plan task. This is not what I would expect, but is this the right behavior? This would mean that suspend is disabled in a critical section. T1 Essays! Should I yield the task immediately after the security business sample osKernelUnliock() to make the suspend effective? there is also no suspend immediately. resume() , if not in have a thesis statement a critical section, should be immediate, i.e. suspend the current thread. RobertRostohar commented Apr 4, 2017. resume() will put thread2 into ready list however it won't pre-empt running thread1 (both have same priority). Adding yield() provides the desired functionality of alternating thread1 and thread2.
RobertRostohar commented Apr 4, 2017 #8226; edited. Business Plan Sample! The osThreadSuspend does not suspend the task. This is not what I would expect, but is this the right behavior? Suspending a running thread inside a critical section would be a dead lock. Therefore the thread is effectively not suspended in ptlls assignment that case.
See my previous comment for an example of alternating thread1 and thread2. ilg-ul commented Apr 4, 2017 #8226; edited. Security! however it won't pre-empt running thread1 (both have same priority) hmmm. Ptlls T1 Essays! I know that you may consider this a matter of personal preferences, but for me this is just another inconsistence. Plan Sample! first, the function is called resume() , so when someone issues this call, he expects that thread to be resumed as soon as possible. second, generally most/all system calls should also act as yields. (the reason is the same as for adding preemption to a cooperative scheduler, to increase scheduler turn around). so, both because this is rule of law sovereignty essay, a system call and business sample, because the own meaning of the 'resume' word, the resume() call is ptlls assignment, expected to yield immediately. gerhil commented Apr 4, 2017 #8226; edited. Suspending a running thread inside a critical section would be a dead lock. Therefore the business sample thread is effectively not suspended in does a biography statement that case. See my previous comment for an example of alternating thread1 and thread2.
I had implemented the an example with yield at the end and this works. In my opinion it is logical if the security business yield is part of the outer osKernelUnlock(). However, i still have an issue with Waza (my library) and the suspend()/Resume()/Lock mechanism. I am trying to figure out what that is. gerhil commented Apr 4, 2017 #8226; edited. however it won't pre-empt running thread1 (both have same priority) This is correct. resume(), if not in a critical section, should be immediate, i.e. suspend the a biography have statement current thread. Business Plan! Ilg-ul, you have mentioned this before and I have been thinking about it. This assumption would be formally incorrect! I would not rely on such assumption. Essay! A resume() includes a non-deterministic choice of whether it should immediate suspend the current thread or not (=to continue). Any decision would be a valid decision.
There is also a non-deterministic choice of which ready thread (or process) should run; the thread ready queue is non-deterministic. Security Business Sample! This fits with the formal semantics of Parallel (CSP). This semantics also covers hardware parallellism where both threads continue at start an analysis essay, the same time by two parallel cores. This is valid for equal priorities. In case the priorities are unequal then the non-deterministic choice turns into a deterministic choice. In case resume() suspends immeditely, this should fits in this semantics, but I would not rely on it. Security Business! It is better to assume that we don't know which thread continues after resume(). This is the same for threads being blocked and released on semaphores and monitors. But there is a concern that makes semaphores and monitors slighly behave different (without breaking the media essay semantics). This concern is fairness, which is based on the shared resource being synchronized. Plan! We must assume (according to Tony Hoare) that a release involves priorities based on first-come-first-served.The one who waits the longest gets first to be resumed.
first, the function is a biography have a thesis statement, called resume(), so when someone issues this call, he expects that thread to be resumed as soon as possible. I would not expect that the thread is to be resumed as soon as possible. The thread will be put on the ready queue, that's good enough. Plan! second, generally most/all system calls should also act as yields. (the reason is the same as for adding preemption to a cooperative scheduler, to increase scheduler turn around). No, not at of law essay, all! CSP provides the security sample answers. This is why I love CSP as a programming model. This is why I develop Waza.
Concurrency does not suffer from these difficult scheduling policies. Concurrency controls the yielding at a higher level of abstraction. With Waza you will use threads without designing with threads, This why people say, multithreading is difficult and concurrency is easy. . to increase scheduler turn around). what is wrong with increasing the scheduler turn around? is starting persuasive, it useless or is sample, it harmful? if this is not important for one application, you can as well disable preemption or use a cooperative scheduler. globally the system should not be affected, just that responsiveness may increase. you can achieve a similar effect by introduction beowulf essay, increasing the preemption clock frequency. With preemption, the preemptive event should perform yield. This can be the security business sample end of does statement, a time-slice or a wakeup of a process. Security Business! Yielding is not harmful, but often unnecessary. Starting Out A Persuasive Essay! Events (=rendezvous between processes) are the perfect moments to yield. Multithreading does not support this model. System calls that are blocking must yield.
I avoid blocking system calls as much as possible. I use unbuffered channels to plan sample, invoke these system calls. Channels are event makers. They determine when the program should yield (based on assignment the event) and they determine which process should be resumed (based on engagement of the processes). Business Sample! Events add responsive and reactive behavior to the program. Your design, i.e. the t1 essays composition of processes and channels, will determine the optimal responsiveness and reactiveness of your program. There is no need to design with threads. This is business plan, a perfect programming model to create durable software that can effectively use the energy functions of the ARM processor. Durable software is reliable, robust, energy-saving and future-proof software. @gerhil, I do not challenge your model, it may be superior, but we are currently operating within the introduction beowulf limits of a multithreading RTOS, and you complained loudly against increasing the scheduler turn around, but later, when asked why, did not provide any reason (or I did not understand your reply). I also understand that the behaviour of security business sample, resume() may be non-determintistic, and applications should not count on it. Rule! ok, but if so, this must be clearly documented. however, since actual implementations usually make a decision on what to do, my recommendation for resume() is to security business sample, yield, if not for other theoretical reason, at least for common sense consistency reasons and for start improving responsiveness. gerhil commented Apr 4, 2017 #8226; edited. but we are currently operating within the limits of a multithreading RTOS, and you complained loudly against increasing the scheduler turn around, but later, when asked why, did not provide any reason.
I use my previous reasoning in the model also in plan sample the (non-CSP) real-time scheduler. I use synchronization/scheduling patterns that makes the does have a thesis statement scheduler yield only when necessary. This includes Dijksta's semaphore, Hoare's monitor and the critical section. I use the critical section to implement Dijkstra's semaphore, I use this to implement Hoare's monitor, and I use this to implement channels and the special process constructs (sequential, parallel, choice, catch). This work shows a balanced and optimal scheduler turn around that is defined by your design.
Your design will determine the performance (responsiveness and reactiveness) of the security business plan sample program. The exit of the critical section is important. It performs yield only when the thread administration has changed to a point where yield is necessary, i.e. when there is a new current thread. My suspend function would look like this. My resume function would look like this. Essay! So when I use a nested critical section construct, the yield is pending until the exit of the sample critical section. For example: These are just a few examples. Good Essay! The patterns in Waza are very small and security business sample, they yield when strictly necessary. ilg-ul commented Apr 4, 2017 #8226; edited. increasing the scheduler turn around . I use my previous reasoning. ok, forget about it, if I ask you one thing and you reply another, we can keep it like this forever. a nested critical section. Ptlls T1 Essays! nope. the first osKernelUnlock() will do exactly what it says, will unlock. for nested critical sections, you need to save the result of security, osKernelLock() and to use it with osKernelRestoreLock() the safe way to implement critical sections is: this pattern works regardless the nesting level. And Culture Essay! similarly you can implement un-critical sections (mirror images of critical sections, where you want the scheduler unlocked regardless its current status) with: this is the C equivalent implementation of the C++ RAII (Resource Acquisition Is Initialization) pattern, with the resource acquired in the constructor and released in the destructor. Plan Sample! this pattern should also be clearly explained in the documentation. gerhil commented Apr 4, 2017 #8226; edited.
for nested critical sections, you need to save the result of osKernelLock() and to use it with osKernelRestoreLock() You are right. I forgot about good beowulf essay it. In Waza, I use state in the functions. ok, forget about it, if I ask you one thing and you reply another, we can keep it like this forever. Security Business Plan Sample! I am very sorry. Persuasive Essay! I think I am living a different paradigm, haha.
Your questions are good. In this world of concurrency I have found different answers to complex problems. gerhil commented Apr 5, 2017 #8226; edited. resume() will put thread2 into ready list however it won't pre-empt running thread1 (both have same priority). Adding yield() provides the desired functionality of alternating thread1 and thread2. Your example is not useful. It can happen that some other process performs yield and security sample, the alternating behavior is gone. I had implemented the an media essay example with yield at the end and this works. I was wrong. The suspended threads play part of scheduling. This behavior is security plan sample, wrong. Without the extra yield it seemed to work. But I was wrong.
The extra yield should not change the alternation of both threads. In my opinion, the osThreadSuspend() function is broken in a critical section. I would like to does, report this problem as a high priority BUG. I am sure that I have shown in business the example above than the does a biography a thesis statement osThreadSuspend() behaves incorrectly in the scope of a critical section (osKernelLock()/osKernelUnlock()). See previous post, Note: I could not test this branch (cmsis_5) with the Gnu ARM tools, because I could not find the eclipse plug in. Instead, I have used the mbed branch (featured_cmsis5) and this works fine. Plan! I have used the a biography have statement latest updates. FYI: I have found a similar problem with the business ESP32 microsprocessor. Espressif has fixed the media and culture problem by performing a yield on a trigger when the interrupts are enabled. Security Business Sample! This is a very nice fix.
I advise ARM to do something similar in and parliamentary sovereignty essay the osKernelUnlock() function. Suggestion: Why not renaming osKernelLock() and plan sample, osKernelUnlock() to an analysis essay, osCriticalSectionEnter() and osCriticalSectionExit()? The terms Lock and Unlock are confusing. Security Business Plan! ilg-ul commented Apr 7, 2017 #8226; edited. Why not renaming osKernelLock() and osKernelUnlock() to osCriticalSectionEnter() and osCriticalSectionExit()? because they do not have identical semantic. and there can also be interrupt critical sections. a scheduler critical section should be entered with a state = lock() and exited with restore(state) . a scheduler uncritical section should be entered with a state = unlock() and exited with restore(state) . if there are examples in the documentation doing otherwise, they are wrong, since they do not allow nesting. gerhil commented Apr 7, 2017 #8226; edited. a scheduler critical section should be entered with a state = lock() and exited with restore(state). Media Essay! Yes.
I have seen examples using osKernelLock(); . ; osKernelUnlock(); . I have used state=lock() and restore(state) and same problem. I will check again. ilg-ul commented Apr 7, 2017 #8226; edited. performing a yield . I advise ARM to do something similar in security plan the osKernelUnlock() function. you loudly complained about increasing scheduler turn around (and improving responsiveness) by performing implicit yields in and culture system calls. personally I do support this, yields should be performed on most system calls (of course, except those called from business plan sample, ISRs, and ptlls assignment, selected calls, for good reasons), and threads of equal priority should be given the CPU immediately, or right after the scheduler lock is released. Yes. I have seen examples using osKernelLock(); . osKernelUnlock(). Business! then they must be corrected. the out a essay save/restore pattern is just a good example of defensive programming. if you are absolutely sure that your critical sections will never nest (I wonder how can someone guarantee this for future code changes), then you can use the lock/unlock calls directly. Plan Sample! gerhil commented Apr 7, 2017 #8226; edited. the save/restore pattern is rule of law and parliamentary essay, just a good example of defensive programming. if you are absolutely sure that your critical sections will never nest (I wonder how can someone guarantee this for future code changes), then you can use the lock/unlock calls directly. I agree. I used lock/unlock because this was similar to other SDKs on other platforms.
I have updated the business example and the result is the same. I have put the printf statements in the critical section for better output. The output should be. ilg-ul commented Apr 7, 2017 #8226; edited. as I already said, in my opinion, with normal implicit yield() behaviour, the persuasive essay suspend() should not be needed, and the code might read: if this does not work, then the RTOS implementation might have problems. gerhil commented Apr 7, 2017 #8226; edited. This does not work as I expected. The osThreadSuspend is essential. The example is simple.
One task must suspend and the other task must resume. This alternating behavior should not be influenced by security business plan sample, osThreadYield() elsewhere in the program. PS. I forgot the assignment yields in security plan the example. I have added them. ilg-ul commented Apr 7, 2017 #8226; edited. The osThreadSuspend is essential. it should not be. The example is simple. One task must suspend and the other task must resume. here we go again. please understand that resume() is not called enqueue_thread_to_ready_list() , but resume() for good reasons, it should resume the new thread, by doing an implicit yield() if there are threads with the an analysis same priority or higher, and security plan, the yield() itself includes an implicit suspend() . suspend() (which may be called only from thread contexts) is intended to implement synchronisation mechanisms, when there is nothing else to do in the current thread (and I insist it should not be allowed to does a biography, be called with other threads), like waiting on a semaphore. resume() has a slightly more complex semantic, since it may be called from ISRs or from threads: when called from ISRs, it adds the given thread to the ready list, but cannot do more, since it is in the ISR context; for example releasing a semaphore from ISR. Security Business! when called from a thread, in addition to adding the thread to the ready list, it yields, to give the new thread a chance to run (if priorities are right); for example releasing a semaphore from another thread. adding an explicit suspend() after resume() is starting out a, acceptable as long as this is what you want, since it means that after returning from the plan suspend() included in the yielding resume() , which was triggered by another resume() called from another ISR/thread, the thread will suspend itself again, waiting for a second resume() . if the current behaviour is different, then indeed we have a bug. gerhil commented Apr 7, 2017 #8226; edited. I understand what you are saying.
The example changes things for the resume and suspend. A Biography Have A Thesis! The example does not work. This example works for FreeRTOS, Linux and Windows. JonatanAntoni commented Apr 7, 2017. I slightly modified your reproducer from above to security sample, demonstrate the current behavior: osThreadSuspend() returns an error when called to media and culture, suspend the running thread with scheduler locked. osThreadSuspend() is not meant to return until one calls osThreadResume() is called for the target thread. Subsequent calls to osThreadResume() to a not suspended thread returns errors as well.
The altering between both threads are due to the osThreadYield() calls I added. These force a round-robin-schedule even if the plan sample running thread has not exceeded its time slice. As far as I understood you rather expect that for: the call to rule of law sovereignty essay, osThreadSuspend() should return. Thus the thread is not suspended instantly but as soon as the scheduler gets unlocked? This means osThreadSuspend() should get an exceptional behavior if its called in a scheduler critical region, instead of returning an error? gerhil commented Apr 7, 2017 #8226; edited.
Please add the plan sample extra yield. Media! This extra yield should have no influence, Thus the thread is not suspended instantly but as soon as the scheduler gets unlocked? The suspend is not suspending at all. It should suspend after leaving the scritical section. This means osThreadSuspend() should get an exceptional behavior if its called in security business plan a scheduler critical region, instead of returning an error? Why does it involve an exception or error? Suspending a thread in a critical section should be fine, only the yield is pending until the end of the critical section. Thanks for a thesis updating the code. The startup suspend/resume in my example was not necessary. I have added them to trace the behavior at the startup.
JonatanAntoni commented Apr 7, 2017. @gerhil to visualize the impact of an extra yield, I duplicated the osThreadYield() only in task1. Now I get. This is security business plan sample, because both threads are ready all the starting out a persuasive time. Thus a yield forces a thread switch. Business! Task one yields twice as task two. Using FreeRTOS I can confirm a different behavior: In this case the a biography statement calls to yield does not have any impact because only one thread is ready at a time. Plan Sample! gerhil commented Apr 7, 2017 #8226; edited. Great!
Thanks for comparing it with FreeRTOS. Now we see a difference. What do you think? Should cmsis behave similar as FreeRTOS in this example? I vote yes. JonatanAntoni commented Apr 7, 2017.
We have to think about this carefully, so please be patient. Are you blocked on this? Or are you able to continue your work based on an analysis CMSIS-FreeRTOS for now? JonatanAntoni commented Apr 7, 2017 #8226; edited. @gerhil can you please enable configASSERT on your FreeRTOS example? I did this as I am analyzing the issue. Calling vTaskSuspend when scheduler is locked leads to an assertion for me. Referring to the FreeRTOS documentation of vTaskSuspendAll reveals that one must not call functions that have the potential to business plan, cause a context switch [..] while the scheduler is suspended . Thus it seams RTX5 and FreeRTOS behave similar, except that RTX5 returns error codes and start an analysis essay, FreeRTOS issues assertions (if enabled). @JonatanAntoni Interesting.
I cannot use CMSIS-FreeRTOS directly because I have no Keil MDK license. I will try it with MCUXpresso. BTW I am using taskENTER_CRITICAL ()/taskEXIT_CRITICAL (). The critical sections I use are ultra small and ISRs of blocking I/O can resume threads. Security Sample! gerhil commented Apr 7, 2017 #8226; edited. Ptlls Assignment T1 Essays! @JonatanAntoni No problems with taskENTER_CRITICAL() / taskEXIT_CRITICAL() and vTaskSuspend() / vTaskResume() with configASSERT enabled. JonatanAntoni commented Apr 7, 2017. CMSIS-FreeRTOS is completely free and security business sample, open source, no need for a Keil MDK license. It is a simple CMSIS-RTOS2 wrapper around vanilla FreeRTOS. Thus makes it very simple to switch back and forth between RTX5 an FreeRTOS. If you do not want to use MDK with RTE, you might also manually include the CMSIS-Packs to your project.
CMSIS-Packs are plain zip archives, beside the out a persuasive essay file extension and an additional pack description file inside. I would love to use MDK and RTE, but it's not for free, is security plan, it? JonatanAntoni commented Apr 7, 2017. You may start with MDK-Lite, this is start essay, free but has a 32kb code size limit for the linker. I have installed MDK-Lite and I can compile the project, but I cannot print the output of the FDRM-K64F in business sample the output window. printf prevents the a biography have a thesis statement program to security, run. I have tried to retarget the stdout, but I don't know how to implement stdout_putchar() to output to a biography, the uart.
I hope that this discussion pinpoints the problem and I hope that this will be solved in the near future. It would be great to use cmsis5 as an alternative to FreeRTOS. JonatanAntoni commented Apr 11, 2017. Security Plan Sample! @gerhil please let us fork this tool support issue into a separate discussion, i.e. per mail. Preferably we remove those off-topic posts afterwards to cleanup this thread in favor of the original issue. JonatanAntoni commented Apr 24, 2017.
do you still have any concerns about suspending tasks? I reviewed the good code of FreeRTOS once more. I use release 9.0.0 and my implementation of security plan, vTaskSuspend states at line 1618: This if statements cover the case when you suspend the current task after the scheduler has been started. The configASSERT should prevent this case when uxSchedulerSuspended is not zero, i.e. the scheduler was locked by a call to vTaskSuspendAll . I can't use CMSIS5 for my projects because the suspend and resume functions do not work well in critical sections. This needs to be fixed by ARM. For now I put CMSIS5 aside. Does Have Statement! Instead, I use FreeRTOS with MCUXpresso. FreeRTOS's suspend and resume functions work well in critical sections. Plan! The portYIELD_WITHIN_API() functions in of law essay vTaskSuspend () and vTaskResume() do not yield in business sample critical sections.
This behavior is what I would expect from persuasive essay, suspend (and resume) in CMSIS5, but CMSIS5 fails. Business! I love to use CMSIS5 with Waza (for C++) in the near future. Introduction! Waza is a true concurrent programming model useful for plan embedded processors. Waza takes CMSIS5 to a much higher quality standard. It makes parallel software sound, simple and defect-free on ARM processors. Multithreading API’s can’t do this! Currently, I am researching new design patterns for start developing energy-saving software. This is part of Waza. Using concurrency is the most effective way to save energy in business software. Unfortunately, I can’t demonstrate this with CMSIS5.
JonatanAntoni commented May 2, 2017. Thanks for your valuable feedback by and culture, providing new use cases for CMSIS-RTOS. As I have to balance between many interests when changing existent APIs I might not be able to refine osKernelLock() and security business plan sample, osThreadSuspend() to fit your needs. Perhaps we can come up with an beowulf essay alternative solution that would work for you. As far as I understood you try to business sample, reuse some RTOS internals, i.e. the context switching. But you are not interested in the major parts of CMSIS-RTOSv2 public API. You are looking for does a biography have statement functions that allow you to security business plan sample, manipulate the ready list of the underlying RTOS and trigger context switching somehow explicitly.
Is this correct? Are you interested in an implementation agnostic API, i.e. to be able to put Waza on media essay top of sample, any RTOS implementation available? Or do you mind to integrate RTX closely? IMO, you don’t have to essay, change the API definitions to fix the problem. You have to refine the semantics of osKernelLock(), osThreadSuspend(), osThreadResume() and osKernelUnlock(). Nothing will break and nothing will be out of balance. The best option is fixing this problem. Perhaps 4 new functions could help me, something like: osCriticalSectionBegin(); // like osKernelLock() (remember current thread) osThreadSuspending(); // like osThreadSuspend() without yielding.
osThreadResuming(); // like osThreadResume() without yielding. osCriticalSectionEnd(); // like osKernelUnlock() or restore with yielding (yields when the business current thread has been changed into and culture, another thread) These functions can help to improve CMSIS.. Security Business! These functions are enough to get Waza working. An Analysis! JonatanAntoni commented May 3, 2017. Hi @gerhil, thank you for your enhancement proposals. We will need some time to clearly think about security business plan sample all the implications of either solution. Please be patient, I will report back as soon as possible. I understand. I am patient. I'm looking forward to hearing from you.
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A Sample Security Guard Company Business Plan Template
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The cash-strapped Ethiopian government has offered to pay 1.5 million to rule of law and parliamentary settle the security, claim. restaurant whose culture I hadn’t already experienced. After some serious brainstorming and a bit of in-class homework, I finally came upon an ethnic restaurant that had slipped through my fingers until then. I’m glad it took me this long, because this assignment left me with a newfound love- Ethiopian Food. . Culture and assignment t1 essays the Effects of Culture to security business sample Our Society. Culture and the Effects of t1 essays Culture to Our Society In general, each nation has their own culture . We can see the culture appears everyday, every time in our society. Culture can be appeared in the way which people think or solve their problems in their country. It can be the belief, the religions or. considering the situation in Ethiopia is not only the population as of security plan sample 2008, but what it was years ago, and how rapidly it is increasing. Starting Persuasive Essay? In 1994, the Ethiopian census measured approximately 53,477,265 people, and as of security business plan today the of law, country experiences an business annual growth rate of 3.212% according to the CIA website. Analyzing of Potential Market of China for Ethiopian Coffee. ·444· Proceedings of the good, 7th International Conference on Innovation Management Analyzing of Potential Market of security China for Ethiopian Coffee Eskinder Asfaw Bantiwalu, Asfaw Yilma Demisse School of does a thesis Management, Wuhan University of plan sample Technology, Wuhan, P.R.China, 430070 (E-mail: eskinder_2001@yahoo.
Participant Observation Project 8/142/2014 TaskMy professor has posed a challenging question Ffor our Food And Culture final course project, I am instructed to He urges us to good introduction essay conduct ourmy own participant observations in order to applyregarding Author Heldke’s cultural food colonialist ideology’sideologies. ?Caribbean Studies – Caribbean Culture and business plan Identity Introduction The culture of the Caribbean people as practiced and experienced among the islands of the Caribbean Sea, that stretch from the Bahamas in the north to ptlls t1 essays the mainland shores of the Guianas in the south, comprises a complex amalgam of influences. There Is No One Culture but Many Culture. “There is no one Caribbean culture but many culture ” I strongly concur with the statement, “there is no one Caribbean culture but many culture .” Caribbean culture , put simply, is as a mixture i.e. “a boiling pot. Culture is widely regarded as the way of living, a shared belief, learned values and. Consumption pattern in Urban Ethiopia (Draft) By Tadesse Kuma Worako Ethiopian Development Research Institute E-mail: firstname.lastname@example.org Tel: 0911402976 Submitted for the Seventh International Conference on the Ethiopian Economy June 2009 January 2009 1 Analysis of Changes in Food Consumption. From the messages received in the news and other media outlets, it is no secret that there are many countries and plan cultures that have differing viewpoints on gender and media and culture gender roles than most Americans. In fact, there are many countries where women have no rights or freedoms other than what men allow. i must strive to make peice not war. 1979–1981: Later years 3 Illness and death 4 Personal life 4.1 Religion 4.2 Family 5 Legacy 5.1 Awards and honors 5.2 Other tributes 5.3 In popular culture 5.4 Film adaptations 6 Personal views 6.1 Pan-Africanism 6.2 Marijuana 7 Discography 8 See also 9 Notes 10 References 11 External links Early.
A Damage Culture is a new Philippines? ?Judy R. Sullano January 23, 2014 II-6 BSE Social Science Prof. Minda Valencia A Damage Culture : A New Philippines? Summary: The article was all about the condition of the Philippines way back in 1987 after dethroning Ferdinand Marcos by Corazon Coquangco Aquino. But I could say that. Gender Discrimination: Gender Stereotype. both. ‘Sex’ is security business a biological differentiation of individuals, categorizing them as males and females, this difference of and culture essay individuals is same in all the cultures , while ‘gender’ is a social differentiation of individuals which categorizes them as ‘masculine’ and security business sample ‘feminine’.
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How to sample Guide to start an analysis Racing Resume / Sponsorship Proposal. So you want to race. Welcome to the club. Whether you are trying to work this out with family support, or on security business sample, your own, unless you are fabulously wealthy, you have already realized that sponsorship is and culture a must for nearly every racer on the track. In your pre-racing days you had to pay for parts to make your ride go as fast as your buddy's, or to make it easier on your bod while having fun. As a racer, whether you are a first year amateur or a factory pro, you will have to obtain the performance modifications and replace product when you mess it up, on or off the track. In fact I know of quite a few times that perfectly good brand new parts have been destroyed in security sample the process of installing them (an expensive education and a lesson in why we should read the directions that come with our new toys).
The point being that your little obsession/habit of racing/riding is going to be a costly adventure, but also the time of your life. Anyone that has been to a race track has noticed the stickers on the bikes and does a biography statement haulers. These are sometimes put there because they came free in the shipment of nerfs, handlebars or in business a sticker pack the rider got at the local Honda shop. If you are a sponsored rider, then the branding/stickers on essay, your quad and hauler establish you as a part of the company that you represent. Security Sample. Your actions while wearing the stickers of your sponsor reflect on the sponsor as well as yourself.
Sponsors consider that when choosing riders. Next question, How do I get a bunch of those stickers without paying for them or the parts they come with? Answer: You do your darndest to earn sponsorship. Simple. Right? Not really. When I first got into start an analysis, this arena I was in security the same shoes you are in right now (unless you have a marketing degree- in which case disregard the assignment, rest of this article). My background had nothing to business plan do with how to ptlls assignment t1 essays write a resume for a racer. Sample. Sure I could find examples from books at rule sovereignty, the library or bookstore on resumes, but none for a professional or semi-professional athlete, much less a racer.
So I had to determine what to do to business sample mix the of law sovereignty, style of sample resume that I would submit if was looking for good beowulf essay a position with a secretarial pool or a teaching position and that of a professional athlete forming a `Racer's Resume'. If you are still reading this right now, you are probably one of the sponsor hungry population who are running out of time to get noticed and security business be considered for this season's budget from most companies. How it works: Nearly every company has a `Sponsorship Budget' in their program. Each company has a person or team of persons responsible for distributing the ptlls assignment, monies/products or a combination of both to deserving athletes. This person or team of business plan sample persons is called `Rider Support'. Nearly every company that offers sponsorship has levels of sponsorship. Common levels are A, B C level support, Pro and Factory. Support can range from a discount on certain products to free products, contingency (this would be money paid for your wins at rule sovereignty, certain events) all the way to the Holy Grail of the racer: Factory Support.
Now let's get down to how to keep your resume on the top of the pile and out of the trash can. Security Sample. Aside from the basics like your name, street address, city, state, zip code, home and cell phone numbers, you should also include your email. A common mistake, believe it or not, is to leave out contact information. Jack Bednar, from Lonestar Racing, has had to dig through the trash pile before to find the right envelope that a resume came in to find out media and culture how to get in touch with the rider. Also necessary in your resume is a short bio of you and your riding history. Security Sample. Don't go into great detail of every second, third or less finishes you have had, and don't include reasons why you didn't podium at specific races. Until you are sponsored, no one really cares why you didn't finish a race except your parents. Photos are a must. Ptlls Assignment T1 Essays. You need to include a head-shot of yourself, one of your bike and security plan one action shot of you at the very least. References must be listed on your resume.
Make sure to include contact information on your references as well. Submit your resume to the right people, during the right time frame. What this means is make sure that you address your resume to the correct department within your target sponsor. Check on the target sponsor's website or call their operator to make sure you have the right address, right name and right time frame to submit your resume. OK, these are the have a thesis statement, rules. Sounds pretty easy so far. If this was all there is to security business plan sample it, you would not have read this far. This section is more the strategy than cheat codes. There aren't really `Cheat Codes' to a resume, but there are bonus points you can score. Let's review what we have done so far.
We have a basic 4 page resume. You have included all the good introduction beowulf essay, `regular' stuff and are following all the rules. Plan. Now, let's get creative and find the way to keep your resume on media, the `keep' pile of your target sponsor's desk. First of all do not even consider handwriting your resume. Security Sample. Make sure you use a good word-processor and spell check it. Kevin Mummuah, from Lost Creek Cycle, says, Don't expect someone to do more for you, than the effort you put into your resume. I can tell how much work they put into it when I open them. The ones that haven't spent the time are obvious. Your focus should be to maximize what you can offer your potential sponsor in the form of endorsing their product and a biography have how to security plan communicate that you can do this to the sponsor. If you are sending resumes out to companies that you really like, then it shouldn't be too hard to express your enthusiasm for the company and start an analysis their product or to come up with ideas on how you would carry the message to potential customers on how awesome their products are.
Is your brain full yet? Maybe this is where you should reconsider that job at business plan, the sawmill instead of assignment racing. I know I have suggested something like this a couple of sample times to my racer. Beginning with your contact information review what you have there. Format your information with your name in bold print. This is important. Assignment T1 Essays. If you have included your email, and I am hoping you ARE including an email, you need to keep it professional. You are asking companies to invest a serious amount of confidence in you as well as money in you to support their products and represent their company. Plan. If you have an email of email@example.com or firstname.lastname@example.org (I don't know if these are real emails or not), it definitely gives a certain impression. Most companies have so much interest in sovereignty essay their sponsorship programs that they can throw away any potential riders that even hint of unprofessionalism. Go ahead and business keep your identity nickname for chat and private messages, but obtain a professional email with your name in a biography have a thesis it like email@example.com or firstname.lastname@example.org either of these would be acceptable and business plan sample have no unprofessional image.
A note on start an analysis, professionalism: if you include your cell phone number or private home number make sure that your recording is also mainstream. No radical music interludes, raps, or weird recordings. Keep it short and sample sweet. People in rider support don't have all day to listen to your favorite tunes or you goofing off on ptlls t1 essays, your answering machines. Make the choice to go with something grown-up, since you are asking for a grown-up gift. Most of the Rider Support people take about 30 seconds on each resume before deciding what pile to security plan file it in. You need to get their attention to make them even slightly interested in you in start essay the first 10 seconds so they will put you in the `keep' pile rather than the `round' file next to the desk (trash can). Start your resume with an security plan eye catcher.
What catches your eye? An action photo would be a good idea. Good Beowulf. OK, here comes the kicker: you actually need a decent action photo to put there. If you don't have some that have been professionally done, get some. Sample. Next make sure that the reader can tell it's you. Assignment. Below are two examples. Security Plan Sample. They are both great `action' photos but the second one is defiantly more eye-catching. Of Law And Parliamentary Sovereignty Essay. Also use good sizes but not to overwhelming and use good quality prints. After you have your resume completed don't mess it all up by printing on your home computer with a low color cartridge. You can have them printed in color on plan sample, a laser printer for under a buck a page at the local Kinkos. Make sure that you are the focus and essay that action is clear.
As Kevin Mummuah said, Don't send me substandard photos with ant people in them. Next you need to describe what your abilities and security business plan sample qualifications are. Get rid of all the descriptions of how cool you are and media and culture what people think about business you. Do include action words describing what you can do. Of Law And Parliamentary Essay. Be willing to security business plan back it up. And keep it short. Make sure to include a short history of your wins.
Don't include every race you did or why you didn't podium or finish a particular race. If you have a photo of your pit area at a race this would be a good place to include it. I am thinking of start an analysis a photo of your pit area, neat, no garbage, clean well maintained quad, your tools organized and maybe you and your mechanic (or Dad, or your dog) standing next to your quad in full clean gear. Remember you are asking a company to be identified with your professionalism. Do you really think they will be interested in being associated with someone who has no respect for their bike or surroundings? Include where you plan to race for the upcoming season. Business Sample. Just list the series that you plan to do in full. Does A Biography Have. If you are going to do something like the full GNC National schedule then include it, otherwise say you will be attending selected National events. Be realistic on where you are going to business sample race and choose one series to focus on. Spell check.
Read it aloud to someone (that usually catches something that is worded weird). Check your formatting. Make sure you don't have lines that look. this in your resume. Do your homework. Find out exactly who to send your resume to by calling the company or looking up on their website for information on starting essay, where and who to send your resume to AND make sure that you are submitting your resume in the right time frame. For instance Shift's Rider Support head, Rob Salcedo, says that they ONLY accept resumes during October 1-31 period. Any resumes that show up even one day early or one day late go straight into the garbage can. Shift gets over 300 resumes from amateur riders in the ATV discipline alone. Clancy Schmitt, from Hiper-Technology, says they get over 500 per year.
The competition is stiff for those sponsorships. So make sure yours comes to the attention of the right person during the right time period. Spell out how you plan on earning your sponsorship. Simply `promoting my sponsors to the best of my ability and listing my sponsors on my sign-ups' is not enough. This is EXPECTED not a perk from you. Running the sponsor's stickers and saying `Thank-You' when interviewed are also expected. Whew, now that we have that out of the way, think on what YOU can do that only you can do. Be original. Be clear on sample, what your plans are. Spell out exactly what you would like your sponsor to do for you.
Do not expect free stuff. More realistically you can expect to receive some kind of a discount on product if you are selected for sponsorship. Many companies offer their main products at a special rate for rule essay sponsored riders. If for instance you are approaching LoneStar Racing, you can let them know what products you are planning on purchasing and when you would need to make a decision on purchasing. Security Business Plan. Fasst Company said they want to see at least six things that you can do for them. Chris and Cole say, Whatever you want from this company, you need to be prepared to and parliamentary sovereignty do double in return.
References are important. Just like a `regular' resume, be prepared to supply the names, addresses, and phone numbers of people that have knowledge of business plan your riding and personality. Your school counselor could write a quick letter of support (on school letterhead) as well as be a reference, a family member, the owner of the local bike shop and other sponsors are great references. Other riders are not good references. If you can get someone who is nationally recognized to be a reference this is best. The ATV industry is quite small and many people know each other well enough to ptlls assignment t1 essays just give a quick call. If you are under 18 years old, it is security absolutely imperative that you include the fact that you have family support. Even young adults will benefit from showing a strong family support system. Have. Be prepared to show who you are, not just what you do. This is plan sample hard to accomplish in a 4 page resume but can be done.
Presentation. Make sure that you have a cover page, your resume, history/bio page, and start an analysis essay a photo page. This is all standard stuff that most of the security plan sample, Rider Support personnel that I spoke with wanted to see. They also have some pet peeves of out a persuasive essay what is not cool to them. Rob Salcedo absolutely hates those slippery covers that you get for business plan sample school reports. What happens is you get a stack of out a them together and they all start sliding out, ending up on the floor, in the coffee etc. Security Business Plan Sample. So binders are a big no-no. A simple staple or cover that is not slippery is essay good.
Have I mentioned spell checking yet? Take pride in business yourself and an analysis your request. Security Plan Sample. Let your potential sponsor see who you are. Biggest mistakes include: non typed or non word processed resume; slippery folders; the quote, `will promote your company to the best of my ability'; large files emailed to an analysis essay company; too short of a resume; too long of a resume; and misspelled words. Every company that I spoke with accepted resumes in mail form. A few accepted emails, and fewer still accepted FAXed resumes. Security Sample. Nearly every company accepted resumes in October and November. Does A Thesis. A few accepted them in security business plan September and essay a few accepted them in December.
After January 1 no one that I spoke with would look at a resume. Each company that I spoke with had different levels of support. Scot Denton, from Denton Racing, said they have four levels of support. Security. Kevin Mummuah from Lost Creek Racing works with a lot of riders at different levels of support. Lost Creek has their pros but also a large number of amateurs and pros who are not even on the roster for Lost Creek, who sometimes end up getting on track support from beowulf, Kevin.
Hiper Technology has three levels of support. Basically most of the companies that I spoke with have different levels of security plan increasing support the longer you have been with the company or as your racing wins or popularity as an ATV personality increases. If you refer a customer to your sponsor, ask the and parliamentary sovereignty essay, customer to tell your sponsor where they found out about the product. This looks very good for you and your sponsor will remember this when it comes time to re-evaluate their budget the sample, next year. Jack Bednar summed it up pretty well, Obviously we can't see them all ride, so we have to go on how they present themselves to us through a resume. There are a lot of people using the Sponsorhouse system for ptlls assignment t1 essays generating a resume. Security Sample. This is a great resource, and OK to use, for a starting point. The format of the Sponsorhouse system takes care of all the basics but the individuality is lacking and many times it seems that the good introduction beowulf, potential sponsor or overwhelmed Rider Support personnel are directed to security plan a web-page to starting persuasive go over. Keeping in mind that the Rider Support people see so many resumes each year, do you really think they are going to be interested in sitting in front of a computer surfing your webpage? Sponsorhouse is security business plan sample a great addition to a traditional resume that is sent out as a hard-copy to your target companies and can really help as the year goes on by keeping your hard-won sponsors up to date on what is happening with you.
I would not rely on Sponsorhouse to do it all for you though. If you end up getting sponsorship, and I am sure you will if you follow the tips in out a persuasive essay this article, make sure that you keep contact with your sponsors. Even if it is plan sample a small sponsorship the first year, you need to essay start somewhere. Cultivate your relationships and in a few years you should have a much better sponsorship, assuming you live up to what you say you will do for your sponsor. Sample. Johnny Jump, from rule essay, KN Engineering, says he likes to see photos of the bike with his company's stickers on it. It would be a fatal mistake to apply for security business plan sample a second year including a photo without your sponsor's sticker visible.
Keep in good beowulf essay mind all the riders you have seen in person, on the track, movies, magazines and on the internet. Plan. They are all potentially competing with you for the sponsor budget. You have to sell yourself. I know this is kind of ptlls t1 essays weird but basically the `you-ness' of security sample you is all that really separates you from any other rider who applies for sponsorship. I know it feels odd but you need to bite the bullet and go for it. As an added bonus you can view Dana Creech's 2003 Resume online through his website.
Have fun, ride safe and don't forget to call your Mom.