Browsing by Author "Mazurenko, Oleksandr O."
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Item Improvement of Customs and Logistics Services in Ukraine(Kaunas University of Technology, Kaunas, Lithuania, 2021) Lebid, Iryna H.; Luzhanska, Nataliia O.; Mazurenko, Oleksandr O.; Kudriashov, Andrii V.; Кravchenya, Iryna N.ENG: Ukraine has a significant transit potential, which is not fully realized. To increase the cargo transit volume, it is necessary to attract carriers by simplifying customs clearance formalities and offering additional logistics services. The paper considers the possibility of using a logistics chain providing customs and logistics services to the customer at cargo customs complexes in order to consolidate all necessary operations related to the export of goods in the country of origin to the maximum extent. Besides, it is also compared with existing logistics chain variations that are already operated.Item Improvement of the Effectiveness of the Process of Separation of Composition on the Sorting Humps(Дніпровський національний університет залізничного транспорту імені академіка В. Лазаряна, Дніпро, 2019) Kudriashov, Andrii V.; Mazurenko, Oleksandr O.; Sharapaniuk, K.ENG:The purpose of the study is dedicated to improving the quality of sorting process using the developed method to determine rational regimes of the train breaking up. These modes provide maximum of reliability division of the wagon cuts at switches, as well as the possibility of implementing a safe speed collision of wagons in marshalling tracks. Methodology. Investigations of the separations of the cut of the train at switches were carried out using sim- ulation modeling. For research, we used the model for the running cut from sorting hump, which allows us to realize the set exit speeds from the brake positions when adjusting the braking zone of the cut. Findings. A quantitative as- sessment of the indicators of the sorting process was carried out using the developed method for optimizing the braking modes of the cuts to control the process of decomposition of trains on one of the sorting hump of Ukraine. The performed analysis of the results showed sufficient efficiency of the developed method, which can be recom- mended for calculating the exit speeds of cuts from brake positions in automation systems of the sorting process. The braking modes obtained as a result of optimization can provide a sufficiently high quality of interval regulation, as well as the possibility of realizing a safe approach speed of cuts to vagons on the sorting paths of automated humps. The scientific novelty of the work is to prove the effectiveness of the considered method of optimizing the composition breaking mode. Practical value of the thesis as well as developed models and methods can be used to create an automated process control system for breaking up of the stocks on sorting humps, as well as to assess the quality of the construction of projected sorting humps. Automation of humps will help to improve the economic per- formance of stations, reduce the cost of processing cars, save energy for braking cuts and hunting, improve working conditions and safety of workers of the sorting hump.Item Reliability of Logistics Chains in Foreign Tradeoperations(Дніпровський національний університет залізничного транспорту імені академіка В. Лазаряна, Дніпро, 2021) Luzhanska, Nataliia O.; Lebid, Iryna H.; Кravchenya, Iryna N.; Mazurenko, Oleksandr O.ENG: The aim of the paper is to justify the decision on cooperation with entities in the transport service market for foreign trade operations based on the assessment of logistics chain reliability and shipping time on different routes. The research findings will enable cargo owners and other stakeholders to make management decisions at the delivery planning stage optimizing all processes related to customs and logistics services. Methodology. We assess the reliability of four logistics chain types based on a simulation model developed in the GPSS software environment using the method of statistical testing. Results. Customs and logistics service users challenge entities in the transport service market with the task of performing foreign trade operations in compliance with the highest level of quality and service reliability minimizing the cost of delivery and shipping time. The proposed method allows determining the probability of timely delivery of goods in different transportation directions as well as the reliability of the studied process. Scientific novelty. The obtained simulation results will make it possible to work out proposals and recommendations for customs and logistics service users on the choice of an optimal logistics chain type, taking into account its impact on shipping time and reliability of goods delivery. Practical value. The practical value of the research is that the proposed method will allow foreign economic entities to form logistics chains, taking into account available resources and the need to use the services of other companies in international goods delivery. In this case, the efficiency of a logistics chain can be further assessed by the shipping time and reliability for ex-port/import operations.