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Damien Young, Jim Kilty, Liam Hennessy and Giuseppe Coratella
Since the COVID-19 restrictions, hurling games have been played in four quarters instead of two halves. This study described the decrement in running performance between quarters in elite hurling. GPS (10 Hz) were used to collect data from 48 players ove...
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M. B. Kurhan,D. M. Kurhan
Pág. 117 - 130
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Marco Altosole, Ugo Campora, Massimo Figari, Michele Laviola and Michele Martelli
A turbocharged diesel engine numerical model, suitable for real-time ship manoeuvre simulation, is presented in this paper. While some engine components (mainly the turbocharger, intercooler and manifolds) are modelled by a filling and emptying approach,...
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Gabriel Zaharia, Dana Badau, Virgil Tudor, Raluca Costache, Adina Geambasu, Mirela Damian, Laura Giurgiu, Cosmin Damian, Vasile Emil Ursu, Razvan Gheorghe Rusu, Ioan Teodor Hasmasan, Iulian Stoian and Corina Tifrea
The aim of the research was to identify the effect of 4vs.4 small-sided games (SSGs) with goalkeepers (4vs.4+GK), applied twice a week, for 8 weeks, on U18 football players? physical ability, compared to that of the athletes who performed specific aerobi...
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Songjune Lee, Cheolung Cheong, Jaehwan Kim and Byung-hee Kim
The high-speed train interior noise induced by the exterior flow field is one of the critical issues for product developers to consider during design. The reliable numerical prediction of noise in a passenger cabin due to exterior flow requires the decom...
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Quan Gu, Jinghao Pan, Yongdou Liu, Minhong Fu and Jianguo Zhang
Dynamic response analysis of a train?track?bridge (TTB) system is a challenging task for researchers and engineers, partially due to the complicated nature of the wheel?rail interaction (WRI). When Newton?s method is used to solve implicit nonlinear fini...
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Maorui Hou, Bingzhi Chen and Di Cheng
Wheel wear is one of the most critical factors affecting the vehicle performances and maintenance costs of railway vehicles. However, previous research has to ignore the initial wheel-rail profiles for the evolution of wheel wear. Therefore, this work in...
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Zhenxu Sun, Ye Zhang and Guowei Yang
Aerodynamic noise increases with the sixth power of the running speed. As the speed increases, aerodynamic noise becomes predominant and begins to be the main noise source at a certain high speed. As a result, aerodynamic noise has to be focused on when ...
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Baowang Li, Xiaobing Wang, Junqiang Wu, Yang Tao and Neng Xiong
To study the aerodynamic characteristics of the convex structure of a surface-monitoring device on a high-speed train and to evaluate its impact on the aerodynamic performance of the high-speed train, numerical simulation research was conducted on three ...
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Hao Luo, Chuyi Xu, Xianbei Gan, Mougang Liu, Xiangrong Guo and Hui Guo
The track smoothness of high-speed railroads is severely limited to ensure train performance. The concrete continuous girder bridge is deformed to influence the smoothness of the bridge decks and track caused by creep bulge. There is a need to research t...
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Ping Lou, Wei Tao, Chenzhi Cai, Xuhui He, Yunfeng Zou and Yuyan Ai
Wind barriers can effectively reduce the risk of overturning and derailment of high-speed trains running on a bridge under crosswind. However, it can adversely affect the wind resistance of the bridge. There are few studies on the aerodynamic performance...
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Pavel Starovoitov
The Tile Calorimeter (TileCal) is a sampling hadronic calorimeter covering the central region of the ATLAS experiment, with steel as the absorber and plastic scintillators as the active medium. The High-Luminosity phase of the LHC, delivering five times ...
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Zhenqian Sun, Kanghua Tang, Xueying Wang, Meiping Wu and Yan Guo
When a high-speed train is running in a tunnel, the global navigation satellite system (GNSS) signal is completely lost. Relying only on the inertial navigation system (INS) composed of Micro-electromechanical Systems (MEMS) devices leads to large naviga...
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Filipe Manuel Clemente, Rui Silva, Daniel Castillo, Asier Los Arcos, Bruno Mendes and José Afonso
The aim of this study was two-fold: (1) to analyze the variations of acute load, training monotony, and training strain among early (pre-season), mid (first half of season), and end season (second half of season) periods; (2) to compare these training in...
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Roxána Varga, Robert Mettin
Pág. 326 - 335
A parameter identification technique of an underlying bubble model of an experimentally observed single bubble in a cluster under dual-frequency external forcing is presented. The measurements are carried out via high-speed camera recordings at a ra...
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Alessandro Leoni, Pietro Nannipieri, Daniele Davalle, Luca Fanucci and David Jameux
The continuous innovation of satellite payloads is leading to an increasing demand of data-rate for on-board satellite networks. In particular, modern optical detectors generate and need to transfer data at more than 1 Gbps, a speed that cannot be satisf...
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Yunfeng Zou, Zhengyi Fu, Xuhui He, Chenzhi Cai, Jia Zhou and Shuai Zhou
This paper focuses on field measurements and analyses of train-generated wind loads on wind barriers (3.0 m height and porosity 0%) with respect to different running speeds of the CRH380A EMU vehicle. Multi-resolution analysis was conducted to identify t...
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Azim Hosseini, Sasan Tavakoli, Abbas Dashtimanesh, Prasanta K. Sahoo and Mihkel Kõrgesaar
This paper presents CFD (Computational Fluid Dynamics) simulations of the performance of a planing hull in a calm-water condition, aiming to evaluate similarities and differences between results of different CFD models. The key differences between these ...
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????????? ????????????? ??????, ????????? ?????????? ????????, ?????? ????????? ?????????, ???? ???????????? ???????, ????? ????????????? ??????????
Pág. 38 - 47
The subject of the research in the article are topical issues related to the development of technology for the repair and restoration of large-sized gears of drives of walking excavators, ore-grinding mills, ball mills. The goal is to develop a new techn...
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