Results 21 to 30 of about 2,092,187 (288)

Determination of the rail-to-earth transition resistance of the ballastless track and influence of the resistance on the current spreading in the subgrade

Вестник Научно-исследовательского института железнодорожного транспорта, 2022
Introduction. The rail-to-earth transition resistance is an important parameter of electrified railways, which directly effects the electrical safety level of the traction network and the potential distribution in the upper structure track area.
A. B. Kosarev, R. A. Rudashevskiy, A. V. Rudashevskaya, P. I. Smolin, I. A. Rebrov   +4 more
doaj   +1 more source

Simulation of Competitive Activities of Skaters in Short-Track

Physical Education Theory and Methodology, 2022
Modeling of competitive activity forms the basis for the rationalization and improvement of those means and methods that are used in sports training of athletes. In this regard, a hypothesis was put forward that predictive skating models will ensure the
Olha Kholodova, Vadym Shemchuk, Sergii Trachuk, Viacheslav Semenenko, Mariia Brychuk, Maksym Pidoprygora   +5 more
doaj   +1 more source

Effect of Compression Garments in the Speed Performance among Track and Field and Swimming student-athletes in a Catholic University of the Philippines

Inspiree, 2023
Background and Purpose: Speed is critical for sports such as swimming and track and field. One of the sports industry's solutions is compression garments to enhance athletic performance.
Jerome A. Porto, John Paul C. Alcantara, Jessiel Tanya L. Belaño, Mae Andrea G. Bernal, Ivana Dianne F. Caballero, Bryan Joshua R. Casao, Jose Martin L. De Leon, Dustine Jorell T. De Vera, Analin E. Porto   +8 more
doaj   +1 more source

Full-Scale Field Experimental Investigation on the Intended Irregularity of CWR Track in Vertical Plane

Energies, 2021
The purpose of the following paper is to present the author’s experimental field investigations of a jointless railway track subjected to a generated imperfection and analysis of track response to applied static loads.
Włodzimierz Andrzej Bednarek
doaj   +1 more source

Modeling of competitive activity of skilled athletes specialized at 1500 m distance on short-track skating

Physical Education of Students, 2013
Background: Models of competitive activity at the 1500 m distance on short-track skating are developed on the basis of defining the relationship between sports results and major characteristics which describe speed of running at different parts of the ...
O.S. Kholodova
doaj   +1 more source

The Tensor Theory Space [PDF]

, 2014
The tensor track is a background-independent discretization of quantum gravity which includes a sum over all topologies. We discuss how to define a functional renormalization group flow and the Wetterich equation in the corresponding theory space.
Rivasseau, Vincent
core   +1 more source

Biomechanical comparison of the track start and the modified one-handed track start in competitive swimming: an intervention study [PDF]

, 2008
This study compared the conventional track and a new one-handed track start in elite age group swimmers to determine if the new technique had biomechanical implications on dive performance.
Galbraith, H, Graham-Smith, P, Hencken, C, Scurr, J, Wood, L   +4 more
core   +1 more source

The Influence of an Integration Time Step on Dynamic Calculation of a Vehicle-Track-Bridge under High-Speed Railway

Mathematics, 2021
In order to study the influence of an integration time step on dynamic calculation of a vehicle-track-bridge under high-speed railway, a vehicle-track-bridge (VTB) coupled model is established.
Junjie Ye, Hao Sun
doaj   +1 more source

Criteria of assessment of short track runners’ prospects as mean of promising sportsmen losses’ prevention at selection stage

Pedagogics, Psychology, Medical-Biological Problems of Physical Training and Sports, 2015
Purpose: to offer main criteria for assessment of short track runners’ prospects. Material: 8 sportsmen of short track Ukrainian national team participated in the research. Influence of training means’ volume on result, shown on competition distance, was
S.A. Kugayevskiy
doaj   +1 more source

Dealing with disruptions in railway track inspection using risk-based machine learning

Scientific Reports, 2023
Unplanned track inspections can be a direct consequence of any disruption to the operation of on-board track geometry monitoring activities. A novel response strategy to enhance the value of the information for supplementary track measurements is thus ...
Sakdirat Kaewunruen, Mohd Haniff Osman
doaj   +1 more source