Results 121 to 130 of about 28,316 (305)
This website highlights subways around the world by presenting city subway maps from Amsterdam to Zürich. The site also includes pages dedicated to indexing navigation aids, subway-related items, city and transit guides, general transit resources ...
Reynolds, Robert E.
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, 1983 One of the most interesting technical features which characterized the implementation of the subway system in Rio de Janeiro was the necessity of reorganizing its confused mass transit system.
Soares, L R
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Deep Underground Science and Engineering, EarlyView.Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao +5 more
wiley +1 more source
Safety Evaluation for Subway Shield Tunnel Structures Considering Assembly Errors
Chengshi guidao jiaotong yanjiuObjectiveTo eliminate the impact of assembly errors on the safety stress evaluation of a shield tunnel target ring structure, it is necessary to study a new method for the health and safety monitoring and evaluation of underground structures.
Shunxin ZHOU +4 more
doaj +1 more source
Evaluating the evolution of subway networks: Evidence from Beijing Subway Network
, 2014 As one of the largest subway networks, the Beijing Subway Network has developed with an unprecedented velocity during the last seven years. This paper analyzes the evolution of the Beijing Subway Network during this high-speed period and proposes a new ...
Biao Leng, Zhang Xiong, Xiaoxi Zhao
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Deep Underground Science and Engineering, EarlyView.A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen +5 more
wiley +1 more source
Comparative Analysis of Fatigue Strength of Welded Frame Based on UIC and JIS Standards
机车电传动, 2019 Using UIC standard Goodman-Smith diagram method and JIS standard fatigue evaluation method, the side beam welding structure of the subway bogie frame was taken as the research object, whose fatigue strength was contrastive studied by using finite element
Shangyuan LIU +4 more
doaj
Deep Underground Science and Engineering, EarlyView.Our study reveals that caving‐enhanced geothermal systems (C‐EGS) with adequately fractured reservoirs achieve optimal heat extraction by minimizing preferential flow paths, while conventional fracturing (F‐EGS) and pipe‐based (P‐EGS) systems suffer accelerated thermal drawdown.
Fangchao Kang +4 more
wiley +1 more source
Hybrid Power Metro Rail Grinding Wagon
机车电传动, 2019 In order to improve the environment of grinding working for metro lines and realize the utilization of catenary and internal combustion hybrid power, a hybrid metro rail grinding wagon was developed.
Zhanlong HE, Hongjun ZHU, Chengyi DU
doaj
Minimization via the Subway Metric
, 2003 The Subway Metric is a variant of the well-known Taxicab Metric in which a subway, in the form of a line in the plane, is used to alter walking distance within a city grid.
O\u27Brien, Carly
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