Open Access. Powered by Scholars. Published by Universities.®

Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 61 - 71 of 71

Full-Text Articles in Engineering

Analysis Of Video Monitoring Of Results Of Labor Activities Of Train Dispatcher (As A Traffic Dispatcher Of The Single Dispatch Center Of The Joint-Stock Company "Uzbekistan Temir Yollari".), S. Sulaymanov, Kh.M. Kamilov Aug 2019

Analysis Of Video Monitoring Of Results Of Labor Activities Of Train Dispatcher (As A Traffic Dispatcher Of The Single Dispatch Center Of The Joint-Stock Company "Uzbekistan Temir Yollari".), S. Sulaymanov, Kh.M. Kamilov

Journal of Tashkent Institute of Railway Engineers

The article presents the results of processing and analysis of video data of the timing of the work shift of train dispatchers of the Single Dispatch Center of JSC "Uzbekistan Temir Yollari". A diagram of the distribution of work shift time in three characteristic poses is constructed. Train dispatchers 57% of the shift time when doing work are in a sitting pose, 21% in a sitting-standing pose, 9% are in a standing pose and 13% for other work on demand. Based on the results of the video timing, taking into account the anthropometric parameters of a person, the dimensions of …


About Organization Of Mobile Communications In Long Car Tunnels, A.S. Shamsiev, A.Sh. Shakhobiddinov Aug 2019

About Organization Of Mobile Communications In Long Car Tunnels, A.S. Shamsiev, A.Sh. Shakhobiddinov

Journal of Tashkent Institute of Railway Engineers

The high demand for mobile services observed in recent years poses a challenge for telecom operators to expand service areas not only in populated areas, but also in places with a specific architecture and terrain. These places include car tunnels. In this article, the authors discuss some issues of mobile communications in long car tunnels. The requirements for the characteristics of a mobile communication channel and some expressions for calculating signal levels inside rectangular tunnels are considered.


Analysis Of Methods For Determining The Resistance Of Differential Scattering Of Synchronous Machines, Taking Into Account The Saturation Of The Magnetic Circuit, А.K. Halbutaeva Aug 2019

Analysis Of Methods For Determining The Resistance Of Differential Scattering Of Synchronous Machines, Taking Into Account The Saturation Of The Magnetic Circuit, А.K. Halbutaeva

Journal of Tashkent Institute of Railway Engineers

The article presents the results of the analysis of published scientific papers, in which one or another method of calculating the resistance of differential scattering of synchronous machines, taking into account the non-linearity of saturation of the magnetic core, is adopted. It is noted that most of these works are performed using the superposition method, intended only for linear systems.


Analysis Of Characteristics Of Parabolic And Parabolocylindrical Hubs, Comparison Of Data Obtained On Them, J.R. Kodirov, S.Sh. Khakimova, Sh.M. Mirzaev Aug 2019

Analysis Of Characteristics Of Parabolic And Parabolocylindrical Hubs, Comparison Of Data Obtained On Them, J.R. Kodirov, S.Sh. Khakimova, Sh.M. Mirzaev

Journal of Tashkent Institute of Railway Engineers

Solar energy technologies can be quickly deployed and have the potential for a global transfer of technology and innovation. In order to manufacture parabolic and parabolic cylindrical concentrators, an analytical review of these two types of solar devices was carried out and, after their creation, experiments were conducted on them in the season of maximum solar radiation. The article also presents data and their comparison for planning subsequent actions of research activities.


Features Of Functioning Container Terminal In Supply Chains, D.I. Ilesaliev, Sh.R. Abduvahitov Aug 2019

Features Of Functioning Container Terminal In Supply Chains, D.I. Ilesaliev, Sh.R. Abduvahitov

Journal of Tashkent Institute of Railway Engineers

The purpose of this article is to study the container terminal as a technical system. In this regard, in this article it is necessary to investigate the functioning of the container terminal, associated with the random nature of the incoming and outgoing containers from the terminal. An example of a method for determining the number of reach players is also given.


Analysis Of Work Of Passenger Trains On Two-Zone Sections And Automation Of Alerts Issued To Them, H.S. Toxirov, A.M. Bashirova Aug 2019

Analysis Of Work Of Passenger Trains On Two-Zone Sections And Automation Of Alerts Issued To Them, H.S. Toxirov, A.M. Bashirova

Journal of Tashkent Institute of Railway Engineers

“Uzbekistontimir yollari” JSC makes a great contribution to ensuring the safety of passenger transportation. Passenger traffic is constantly growing and growth is expected in the future, and competition is growing in the suburban passenger transport market. Increasing the size of passenger trains requires even more attention to safety. The article discusses the possibility of organizing a zonal movement on a suburban section X-T and to facilitate the work of the duty officers at the automation station issuing warnings for trains.


Principles And Features Of Blockchain Technology Implementation In The Railway Industry, L.F. Kazanskaya, N.A. Drivolskaya Aug 2019

Principles And Features Of Blockchain Technology Implementation In The Railway Industry, L.F. Kazanskaya, N.A. Drivolskaya

Journal of Tashkent Institute of Railway Engineers

Objective: to Consider the advantages and disadvantages of using blockchain technology and the possibility of introducing cryptocurrencies in the transport sphere of Russia. Methods: methods of generalization, grouping, comparative analysis, system approach, problem statement, study of literary sources and normative-legislative documents, results of activity, study and generalization of experience were Used. Results: blockchain technology applied to cryptocurrencies is Considered. The principle of operation of the blockchain technology in the transaction of bitcoins between users in relation to the railway industry. The conclusion is made about the problems of introduction of cryptocurrencies as payment instruments in the near future due to …


Peculiarities Of Corporate Governance On Railway Transport Of The Republic Of Uzbekistan, M.G. Grigoryan, F.Z. Karakulov Aug 2019

Peculiarities Of Corporate Governance On Railway Transport Of The Republic Of Uzbekistan, M.G. Grigoryan, F.Z. Karakulov

Journal of Tashkent Institute of Railway Engineers

Peculiarities and problems of the development of corporate governance of the railway company of «Uzbekistan Temir Yo’llari» JSC in the current economic conditions are considered. The relevance of the chosen direction of research is determined by its high significance for the economic, political and geopolitical development of the railway transport of the Republic of Uzbekistan. Political and geopolitical interest is associated with a significant impact on the national economy, which is provided by the railway transport companies of the Republic of Uzbekistan, as well as with the desire for the interaction of other enterprises in order to obtain additional competitive …


Improvement Of Thermal Technical Characteristics Of Wall Ceramic Material Based On Low-Sorted Lyssovid Suglinks And Modified Liquid Glass, Anvar Ishanovich Adilkhodjayev, I.M. Mahamataliev, A.T. Ilyasov Mar 2019

Improvement Of Thermal Technical Characteristics Of Wall Ceramic Material Based On Low-Sorted Lyssovid Suglinks And Modified Liquid Glass, Anvar Ishanovich Adilkhodjayev, I.M. Mahamataliev, A.T. Ilyasov

Journal of Tashkent Institute of Railway Engineers

Application of low-grade loesslike loams (NLS) in the production of effective wall ceramics requires development of methods of increase of frost-resistance of ceramic porizovannoy matrix. It can be attained by adjusting of porosity of structure. In the Tashkent architectural-build institute possibility of making of an effective wall ceramic material is studied on the basis of NLS with the use of dobavki- ash-taking away of Angrenskoy TES and modified liquid glass as a modifier of porous structure. It is set that introduction of addition ash-taking away in an amount 25 % from mass of NLS and burning at the temperature of …


The Risk Of Ballast Graphic Towards Pozzles Moving Frequency, Sh.Sh. Abdukamilov, A.Yu. Mamadaliyev Mar 2019

The Risk Of Ballast Graphic Towards Pozzles Moving Frequency, Sh.Sh. Abdukamilov, A.Yu. Mamadaliyev

Journal of Tashkent Institute of Railway Engineers

A special place in identifying the features of the vibrational process of ballast material, it is necessary to take, first of all, the nature of the process of oscillations. Its identification helps to determine the causes of their occurrence, which is very important for assessing the influence of oscillations on the properties and state of the ballast layer. Knowledge of the nature of the oscillatory process makes it possible in the future to simulate it in laboratory conditions to determine the degree of decrease in strength properties of ballast material, clogged sands under the influence of vibrodynamic load, during the …


Theoretical Aspects Of Structural And Simulation Modeling Of The Macrostructure Of Composite Building Materials, Anvar Ishanovich Adilkhodjayev, I.M. Mahamataliev, S.S. Shaumarov Mar 2019

Theoretical Aspects Of Structural And Simulation Modeling Of The Macrostructure Of Composite Building Materials, Anvar Ishanovich Adilkhodjayev, I.M. Mahamataliev, S.S. Shaumarov

Journal of Tashkent Institute of Railway Engineers

At the present time, the description of the joint work of multi-component, high-quality concretes in the framework of the structural and simulation modeling of cement composites is a very topical task of building materials science. In the context of the solution of the above problems, theoretical aspects of structural and simulation modeling are presented on the example of the developed program "Concrete-technology", which allows to predict the strength properties of multicomponent high-quality concrete at the macro structural level.