Results 81 to 90 of about 805,461 (159)

Analysis and Remediation Strategies for Rail Profile-induced Train Hunting Instability in Rail Transit Turnout Area

Chengshi guidao jiaotong yanjiu
[Objective] Causes for train hunting instability in rail transit turnout areas are complex, usually related to turnout irregularity, vehicle state, wheel-rail relationship and other factors, seriously affecting driving comfort and threaten driving safety.
CHEN Dalei
doaj   +1 more source

Differences in Wheel Service Performance of Vehicles With Internal and External Axleboxes Considering Wheel-Axle Bending

IEEE Access
Based on the relative position of the axlebox to the wheel, rail vehicles can be categorized into vehicles with internal axleboxes and those with external axleboxes. This study investigates the bending patterns of axles under different loading conditions
Tao Guo, Bingzhi Chen, Xu Zhang, Yi Zeng, Shuai Han   +4 more
doaj   +1 more source

Computational and experimental verification of the equivalent permeability of the step-lap joints of transformer cores

, 2008
The paper develops an efficient computational method for establishing equivalent characteristics of magnetic joints of transformer cores, with special emphasis on step-lap design.
N. Nihat, E. Napieralska-Juszczak, Sykulski, J. K., Napieralska-Juszczak, E., J.K. Sykulski, J.Ph. Lecointe, Lecointe, J. Ph., Nihat, N.   +7 more
core   +2 more sources

Influence of Spacing and Application of Pruning on the Conicity, Density, and Ratio of Heartwood/Sapwood of Eucalyptus Wood

The study aimed to evaluate the influence of planting spacing and artificial pruning on the basic wood density and stem conicity of a eucalyptus clone. The experiment was conducted in a 100-month-old eucalyptus clone stand using a randomized block design
Ana Paula Leite De Lima, Victor Dartagnan Fernandes Nogueira, Lilian Carine Flach, Deborah Nava Soratto, Gabriel Augusto Teixeira Devolio, Rita de Cássia Barros Nunes, Samyra Alves de Oliveira Gonçalves, Sebastião Ferreira De Lima   +7 more
core   +1 more source

Comparison of Anthropometric and Conicity indicators in Students with Premenstrual Syndrome [PDF]

, 2019
ACKGROUND AND OBJECTIVE: Body composition and body fat are important in the prevention of chronic diseases in people with premenstrual syndrome. This study was performed to compare the anthropometric and conicity indexes in PMS and healthy people ...
A Ramezani, ChaleshgarKordasiabi, M, M Chaleshgar Kordasiabi, Hoseini, SM, SM Hoseini, Ramezani, A   +5 more
core  

Valuing guaranteed annuity options using the principle of equivalent utility [PDF]

, 2008
This thesis considers the valuation of guaranteed annuity options using an equivalent utility principle from the point of view of the policyholder. In this model I give an explicit form to the value functions involved in the indifference valuation.
SILLA, SEBASTIANO
core  

Influence of Wheel Wear Depth on Wheel-rail Dynamic Performance in Fast Metro Line Turnout Zone

Chengshi guidao jiaotong yanjiu
ObjectiveOn fast metro lines with speeds of 120 km/h and above, wheel wear develops quite rapidly, and intense wheel-rail interactions occur when trains pass through turnouts, necessitating an investigation into the influence laws of wheel wear depth on ...
Xiaohu QI, Dongliang ZENG, Shan JIN, Xiaoyu HU, Kaiyun WANG, Yansong DING, Jun HUANG   +6 more
doaj   +1 more source

Associations between the conicity index and kidney stone disease prevalence and mortality in American adults

Kidney Stone Disease (KSD) is a prevalent urological condition, while abdominal obesity is on the rise globally. The conicity index, measuring body fat distribution, is crucial but under-researched in its relation to KSD and all-cause mortality.
Xianyu Dai, Yu Chang, Yuchuan Hou
core   +1 more source

Analysis on an off-line Wheel-rail contact geometry Algorithm and its Application

工程科学与技术
ObjectiveThe persistent challenges associated with existing wheel-rail contact geometry algorithms are addressed in this study, particularly the reliance on iterative roll angle solutions and inconsistency between roll angle in contact geometry ...
Lu Chenxu, Wang Yaowei, Xu Wenwu, Tang Yao, Chen Dilai, Liu Wei   +5 more
doaj  

Original Article CONICITY INDEX OF ADULT BANGLADESHI POPULATION AND THEIR SOCIO-DEMOGRAPHIC CHARACTERISTICS

, 2014
In spite of acknowledged importance, no unified definition exists for central obesity. Several anthropometric indexes such as waist circumference, waist-hip ratio, waist-to-height ratio, conicity index etc, are being used.
Mahmudur Rahman, Meerjady Sabrina Flora, Cgn Mascie-taylor   +2 more
core