Multidimensional routing with the increased navigation accuracy with the maintenance of flight notifications of the flight vehicles

The article covers the problem the multidimensional routing of flights for the transportation of cargo and mail, with the condition of the corresponding equipment presence for performing navigation of increased precision to obtain the possibility of the formation flights under any weather conditions. The given circumstances are capably essential to reduce load while using the airspace, which will make it possible to achieve transportation independent of its saturation. While planning the routes it is also necessary to consider the interests of different interested groups, which are often opposite to one another. In the view of the different directivity of the tasks in question, the solution can require the sorting as excessively as large, so the smaller quantity of possible situations (versions of the solution), the lower the level of the calculation of these versions is, and the greater their quantity is. The exact example of multidimensional routing, which is affected by the interests of operational nature and the interests of the urgency of the performance of the claims, expressed by weight coefficients, is depicted in this work. The only version in favour of the general production process, which is obtained with the help of a genetic algorithm, is a solution of this problem. It was necessary to introduce some designations and assumptions, the enumeration of which can be supplemented. Optimal solution can be obtained both by the enumeration of the solution versions and with the help of the genetic algorithm, which is allowed for a smaller number of iterations, to obtain suboptimal in real time, which corresponds to the conditions of the task solution. In that the example dynamic priorities are assigned, based on multiplicative form by expert evaluation, which form criteria for the ranking of request for each step of route planning. As a result, there are the exact versions of the solution, which correspond to the interests of different groups and the version, obtained with the help of a genetic algorithm, which satisfy the opposite interests of these groups. All versions of the solution are proved to be different, which indicates the need of applying the objective and substantiated apparatus for making the decision, which the genetic algorithm actually is. The proposed mathematical apparatus has prospects for implementation.

Creating private criteria for A-CDM effectiveness to take into account the interests of decision-making participants in a dynamic environment

We consider the problem of collaborative decision making of the production process at airlines (CDM) in dynamically changing conditions of occurrence of emergency situations that make changes in the action plan. In the production process, due to the different orientation of the tasks to be solved, the solution may require a large or small number of possible variant solutions. The article presents a concrete example of such a situation affecting the conventional three services of the aviation complex, each with its own interests in the overall production process. The solution to this problem is the only option in favor of the overall production process. For this purpose, several designations and assumptions have been introduced, the list of which can be supplemented. Dynamic priorities are defined for each participant of the process. Optimization of collaborative decision-making can be achieved either by a simple search for solutions, or by using a genetic algorithm that allows you to get a suboptimal solution that meets the requirements of the participants in the process using a smaller number of iterations in real time. In this example, we consider a situation that occurs in a real enterprise due to bad weather conditions. Thus, dynamic priorities are assigned based on a multiplicative form for delayed flights, considering the interests of participants in the process, private criteria are formed for ranking flights at each step of rescheduling, and a genetic algorithm is applied. As a result, we obtained four solutions to the disruption caused by external factors. The first three options correspond to the interests of three parties concerned, and the fourth one is consolidated. All the solutions were different, which indicates the need for an objective and reasonable decision-making apparatus for joint management of the production process. The proposed mathematical apparatus has this ability and prospects for implementation.

Commercially Focused Dynamic Priorities in the Organisation of the Transit of Cargo Trains

One of the main tasks in improving management of the transportation process is the transition to enhanced quality of transport service focused on meeting users’ requirements while achieving the most economical results for all the components of the technological process stages. The quality of the services offered by railway transport is gradually becoming an increasingly significant indicator of economic efficiency for both carriers and cargo owners. Customers are ready to buy more and more qualitative services to save time, expand their business, and meet new needs. This necessitates dev elopment of modern approaches to optimizing the use of existing railway infrastructure, including by establishing priorities in organizing traffic. The objective of the research was to study the procedure for establishing dynamic priorities for organizing transit of cargo trains. To achieve this goal, a comparative analysis method, special engineering calculation methods associated with organization of train traffic were used. During the study comparative analysis of main characteristics of a number of world railways was carried out. Following clearly defined strategy of railways of the Russian Federation aimed at customer focus, this article provides preliminary research results, the findings of which revealed the expediency of establishing dynamic priorities for cargo trains transit. It is especially important to implement these approaches in the context of an operational change in the train situation in the event of emergency events on the infrastructure and for a possible reduction in the financial losses of consignors and consignees. The same approaches can rightfully be used on the railway of the Republic of Kazakhstan.

MODEL SISTEM INFORMASI MONITORING PERKULIAHAN FAKULTAS TEKNIK UNIVERSITAS SEMARANG BERBASIS WEB

<p>The development of Information Technology is increasingly demanding that Higher Education to provide information quickly to meet the needs of Information and Monitoring Course for Lecturers, Students and Admin staff. This study aims to design a Model Information System and Monitoring Course at the Faculty of Engineering, University of Semarang Web-based. Coverage includes lecture planning, lecturing, evaluation of lecturing, control of lecturing and improvement of lecture planning. This research produces an application of Information System and Monitoring model of lecturing which aims to facilitate and accelerate the preparation of time, room and course schedule and ease in monitoring the attendance status of lecturers in class either to students or other parties in real time without having to come to campus check board information . The contribution of this research results will greatly affect the application of science and technology for higher education institutions and to realize the development of Faculty of Engineering Semarang University as a leading Faculty in 2023. The method used is dynamic priorities method which prioritizes the process that has the highest <br />priority and is able to respond to changes in the system environment operate. Modeling the system using XAMPP package in which integrated MySQL module for database purposes, PHP for management of information systems, and Apache for simulation purposes. The results showed the implementation of the application of Information Systems Monitoring System Lectures Faculty of Engineering, University of Semarang goes well.</p>

Development of a Queuing System with Dynamic Priorities

The article discusses the development of a queuing system with the use of various queuing disciplines. The authors have developed a model of the queuing system and conducted the experiments on system overload, which helped to distinguish its weaknesses and improve it using dynamic priorities. The priority is increased on a one-off basis for an entity with low priority under specified conditions. Consequent testing of the system has confirmed its robustness.