Models and Applied Information Technology for Supply Logistics in the Context of Demand Swings

Кosenko, Viktor; Gopejenko, Viktors; Persiyanova, Elena

doi:10.30837/2522-9818.2019.7.059

Cited by 13 publications

(12 citation statements)

References 4 publications

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“…This requires solving, together with traditional tasks, the problems of optimizing the return flows from consumers to the places of production or disposal of waste. Such tasks are solved within the framework of green (reverse) logistics [17,18].…”

Section: Analysis Of the Problem And Existing Methods For Solving Itmentioning

confidence: 99%

Optimization of Transportation Routes in a Closed Logistics System

Beskorovainyi

Kuropatenko

Gobov

2019

Innovative Technologies and Scientific Solutions for Industries

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The subject of research in the article is the network of closed logistics. The goal of the work is the creation of mathematical models and methods for solving problems of optimizing transportation routes in closed-loop logistics systems, taking into account many topological and functional limitations. The following tasks are solved in the article: the development of a systemological model for the problem of optimizing transportation routes in a closed logistics system; development of a mathematical model of the problem of structural and topological optimization of a three-level centralized network of closed micro-logistics routes for global transportation; development of a mathematical model for the optimization of ring transportation routes in a closed logistics system for local transportation; development of methods for optimizing ring transport routes in a closed logistics system. The following methods are used: methods of system theory, graph theory, methods of the theory of utility, optimization and research of operations. The following results were obtained: the decomposition of the problem of optimizing transportation routes in closed-loop logistics systems at the macro and micro levels was performed; a systemological model of the problem has been developed, which reflects the whole complex of tasks that are solved at various stages of the life cycle of logistics systems. To improve the efficiency of closed-loop logistics systems, a joint solution to the problems of network optimization for the transportation of direct product flows and return flows has been proposed. A mathematical model of the problem of structural and topological optimization of a three-level centralized network of closed micro-logistics routes for global transportation has been developed. To solve such problems, methods using directed enumeration of options are recognized effective; a mathematical model of the optimization problem of the network of closed micrologistics routes for local transportation with the simultaneous transportation of the contents of the forward and reverse flows was developed; To solve the problem of optimizing closed-loop micro-logistics route networks at the local transportation level while simultaneously transporting the contents of the forward and reverse flows, modifications of the Clark-Wright methods are proposed, as well as a method based on coordinate-wise optimization and insertion schemes; experimental studies of the proposed modifications of the methods made it possible to obtain estimates of their temporal complexity. Conclusions: Practical use of the proposed mathematical models and modifications of methods for optimizing closed-loop logistics systems by jointly solving problems for direct and reverse flows will reduce the cost of implementing transport companies. The obtained estimates of the time complexity of the optimization methods will make it possible to predict the costs of computing and time resources in their practical use for solving optimization problems of closed-loop logistics networks.

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Section: Analysis Of the Problem And Existing Methods For Solving Itmentioning

confidence: 99%

Optimization of Transportation Routes in a Closed Logistics System

Beskorovainyi

Kuropatenko

Gobov

2019

Innovative Technologies and Scientific Solutions for Industries

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“…In [15][16][17][18] it is stated that project-oriented management implies managing not the enterprise as such, but its project portfolio, with all activities being broken…”

Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

Conceptual Model of Project-Oriented Management of Educational Activities of Higher Education Institutions

Piterska

Lohinov

Lohinova

2020

Innovative Technologies and Scientific Solutions for Industries

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The subject matter of the article is the methods, models and mechanisms of project-oriented management of the educational activities of higher education institutions. The goal of the work is to develop a conceptual model for managing the educational activities of higher education institutions on the basis of a project-oriented approach. The following tasks were solved in the article: analysis of the educational activity management model of higher education institutions, the study of modern methods of managing university educational projects portfolios, the development of a mechanism for the formation of a conceptual model of projectoriented management of educational activities of higher education institutions. The following methods are usedproject and portfolio management methods, systems theory and systems analysis, risk management methods. The following results were obtained the main stages of the life cycle, their products and the mission of the project "Introductory Campaign of Higher Education Institutions" were identified, the concept of "educational product", "product of an educational project", "educational project", "educational activity project" was defined, a model for determining introductory campaign project values and effectiveness, a conceptual model of project-oriented management of educational activities of higher education institutions has been developed taking into account the value of the project "Introductory Campaign of Higher Education Institutions". Conclusions: ensuring the effectiveness of the implementation of the project approach in the ongoing activities of higher education institutions should be based on a clear identification of the attributes of these projects, including products, values and effectiveness, which will allow not only to clearly understand the result of project activities, but also to control its receipt. The implementation of the concept of project-oriented institutions of higher education will increase the efficiency of the current activities of universities and their development by using the advantages of project management technologies. The definition "Mission of the project "Introductory Campaign of Higher Education Institutions" is proposed, which is understood as the achievement of the maximum possible enrollment of students in the current conditions on the educational services market. The value of the "Introductory Campaign of the Higher Education Institution" project has been established, which determines the usefulness of the project product for stakeholders. The proposed conceptual model of a project-oriented approach to the management of educational activities of higher education institutions will allow to extend the project approach to the development and functioning of various blocks of the university's activities based on the introduced concept of "product portfolio of higher education institutions". Such an approach in the future will make it possible to clearly identify the totality of university projects as part of educational activities and turn its...

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“…No. 4 (14) economy, is the management of supply chains (logistics chains) The importance of taking into account environmental requirements in the optimization of logistics structures by solving in conjunction with traditional logistics problems of optimizing return material flows from consumers to places of production or disposal within the reverse logistics is noted in [6]. In [7], the scope of activity, which is identified as logistics of recycling and utilization, is defined within logistics, and its goals and main logistic functions are outlined.…”

Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

A Model of Closed Circuits Forming in a Logistics System With Feedback

Kovtun

2020

Innovative Technologies and Scientific Solutions for Industries

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Models and Applied Information Technology for Supply Logistics in the Context of Demand Swings

Cited by 13 publications

References 4 publications

Optimization of Transportation Routes in a Closed Logistics System

Optimization of Transportation Routes in a Closed Logistics System

Conceptual Model of Project-Oriented Management of Educational Activities of Higher Education Institutions

A Model of Closed Circuits Forming in a Logistics System With Feedback

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