Railroad engineering and operation

Results 21 to 30 of about 5,247 (220)

Effect of the load-bearing characteristics of the cushions on the longitudinal dynamics of the electric trains and the high-cycle fatigue of coupling

Вестник Научно-исследовательского института железнодорожного транспорта, 2023
Introduction. Measurements of forces in couplings on electric trains of different categories and types (including different types of drawbars) showed that the level of forces in couplings on suburban electric trains is higher than on urban express trains,
V. I. Belyaev
doaj +1 more source

Analysis and Design of a 50-kW Two Stage Converters for EV Fast Charger With High Efficiency and Wide Output Voltage of 150–1000 V

IEEE Access
Generally, the DC-DC converters used in DC fast chargers must cover a wide output voltage with a fixed input voltage, and a single module needs to supply 30-50 kW of power.
Ha-Min Park +5 more
doaj +1 more source

Railway transport as a tool for socio-economic development of the Russian regions (evidence from the Republic of Sakha (Yakutia))

Вестник Научно-исследовательского института железнодорожного транспорта, 2015
The article is devoted to the identification of the influence effects of transport infrastructure in the social sphere and in the regional economic development. The Republic of Sakha (Yakutia) was selected to be an object for investigation.
L. V. Khudyakova
doaj +1 more source

Passenger carriages heat insulation tool

Вестник Научно-исследовательского института железнодорожного транспорта, 2023
Introduction. This is a description of a technology for assessing the quality of thermal insulation of passenger carriages bodies using the portable tool developed.
A. N. Balalaev, M. A. Parenyuk
doaj +1 more source

Finance and statistics accounting management in EXPRESS system under circumstances where new railway ticket agents appear

Вестник Научно-исследовательского института железнодорожного транспорта, 2015
Among the most important focus areas in the holding company JSC ‘Russian Railways’ is to raise efficiency of the railway passenger service system by means of developing new routes and new types of service including sales of travel documents throughout ...
L. V. Korzun
doaj +1 more source

Development of an advanced algorithm for calculating and assessing the wheel pair geometry in the CONLOC system

Вестник Научно-исследовательского института железнодорожного транспорта, 2023
Introduction. The authors examine the development of new, updated mathematics in the automated control of the geometry of rolling stock wheel pairs for the CONLOC measuring system.
A. S. Adadurov +3 more
doaj +1 more source

Wavy‐Interlocked Stretchable Triboelectric Nanogenerators Enhanced by Liquid Metal Microflowers for Self‐Powered Wearable Motion Monitoring

Advanced Science, EarlyView.
Schematic showing a stretchable triboelectric nanogenerator based on interlocked wavy architectures that uses EGaIn microflower‐embedded PVDF‐TrFE and Nylon‐6 nanofiber membranes. The multi‐petaled, electron‐rich EGaIn microflowers enhance interfacial polarization and capacitance, while the interlocked wavy architecture enlarges the effective contact ...
Qianqian Xu +12 more
wiley +1 more source

A Feasibility Study on the Integration of Human Performance Data From Diverse Sources Based on the Complexity of a Proceduralized Task

IEEE Access
Securing the safety of socio-technical systems including nuclear facilities is the utmost goal to ensure their sustainability, with historical records demonstrating that the performance degradation of human operators (e.g., human errors) is one of the ...
Jinkyun Park, Jooyoung Park, Taewon Yang
doaj +1 more source

Thermally Programmable Two‐Port Non‐Hermitian Acoustic Metastructure for Broadband and Direction‐Dependent Absorption

Advanced Science, EarlyView.
A thermally programmable two‐port non‐Hermitian acoustic metastructure is presented, where temperature acts as a non‐geometric tuning variable. Thermal modulation reconfigures impedance matching and loss‐leakage coupling, enabling exceptional‐point driven, broadband, and direction‐dependent sound absorption without requiring geometric reconfiguration ...
Zichao Guo +6 more
wiley +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang +9 more
wiley +1 more source

simulation
railway track
railway transport