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Matsiuk V.,State Economy and Technology University of Transport
EasternEuropean Journal of Enterprise Technologies | Year: 2017

The study reveals an influence of the main technological parameters on the probability of failing and uptime work to receive and dispatch transit cargo trains in time. The determined regularities concern failures resulting from changes in the daily load, the technological equipment of transit depots, and uneven sizes of arriving and departing flows of trains. The importance of the research is grounded on a lack of objective assessment of the reliability of a standard operational model of processes that take place at maintenance depots for railway transport, which means that it is essential to determine the probability of failure of timely receipt and dispatch of cargo trains. The level of failure and the trouble-free uptime are mainly affected by the size of the operational fleet of train locomotives, the uneven number of daily trains, and the minimal pre-set intervals of associated arrivals and departures of trains. The research has established that the existing standards ensure the required level of reliability (the probability of a timely acceptance of trains at 95 %). However, the time of trains' staying on receiving and departure tracks exceeds the norm almost 4 times, which minimizes the likelihood of timely departures of trains. The probability of failure in timely departures is not taken into account by the current regulations; therefore, it is suggested that such a standard should be introduced. The undertaken tests facilitate objective evaluation of the reliability of the typical technological processes that take place at technical railway stations and entail the need to review the methods of its rationing. © V. Matsiuk, 2017.


Gertsiy A.,State Economy and Technology University of Transport | Liesoviyi V.,Vinnytsia National Technical University
2015 2nd International Scientific-Practical Conference Problems of Infocommunications Science and Technology, PIC S and T 2015 - Conference Proceedings | Year: 2015

An important factor of development of modern telecommunication networks is to assure the efficiency of their work and proper parameters of quality of provided services. Therefore, the development and implementation of effective methods and facilities of connection quality assurance is the topical issue. The article deals with the analysis of problems of quality assurance in telecommunication networks, and some modern methods for solving the set task are considered on the basis of integrated IntServ and differentiated DiffServ service models. © 2015 Kharkiv National University of Radioelectronics.


Osmak V.,State Economy and Technology University of Transport
Metallurgical and Mining Industry | Year: 2015

The article gives a classification of isothermal rolling equipment depending on the heat transfer coefficient, which evaluates the total heat-mass transfer through car body enclosure. This allows forming of the modern isothermal cars fleet in current transfer conditions of perishable grocery, artificial packaged and palletized freights, which require a protection from atmosphere precipitation and temperature differential. © Metallurgical and Mining Industry, 2015.


Timchenko L.I.,State Economy and Technology University of Transport | Petrovskiy N.S.,State Economy and Technology University of Transport | Kokriatskaia N.I.,State Economy and Technology University of Transport
Optical Engineering | Year: 2014

We examine the methods of laser beam classification and their uses. We discuss the necessity of noise filters using adaptive methods in beam reflection, such as parallel-hierarchical networks. A demonstration of this network is shown on a programmable logic device. © 2014 Society of Photo-Optical Instrumentation Engineers (SPIE).


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