Results 61 to 70 of about 9,529 (98)

The Full Cost of Intercity Highway Transportation [PDF]

open access: yes
In this paper we review the theoretical and empirical literature on the cost structure of the provision of intercity highway transportation and specify and estimate our own cost functions .
David Gillen, David Levinson
core  

Maintainability Allocation of EMUs Electric Traction Systems

open access: yes, 2014
System maintainability allocation method was expounded. Function diagram and mathematical model on maintainability for EMUs electric traction systems were established, and weighted method was used for the distribution.
LIU Xue-quan, SHAO Zhi-he, HE-zai
core   +1 more source

First operating experiences with an EMUS-system for monitoring the filling level of a RPV

open access: yes, 2022
S.20.1-20.19Anläßlich des MPA-Seminars 1988 wurde über Ergebnisse von Laboruntersuchungen zur Methode der Füllstandskontrolle am RDB mit Ultraschall berichtet.
Hübschen, G., Oed, R., Löhr, E.
core  

Pantograph Body and Its Installation Strength Research of Test EMUs

open access: yes, 2013
In order to understand pantograph performance on domestic high-speed test EMUs, pantograph mechanical and structural strength was anticipated. Pantograph body and base finite element analysis model of test EMUs was built, and pantograph body parts ...
SUN Chuan-ming
core   +1 more source

Intercity Trade and Convergent versus Divergent Urban Growth [PDF]

open access: yes
The paper studies intercity trade and growth in an overlapping-generations economy where tradeable goods are produced using a composite of capital, raw labor and intermediates, and are combined in each city to produce a composite.
Yannis M. Ioannides
core  

Axle Temperature Detecting System of New-generation High-speed EMUs CRH380C

open access: yes, 2012
Based on axle temperature detecting system structure and principle of CRH5 & CRH3 EMUs, new-generation high-speed EMUs axle temperature detecting system was developed with DSP+FPGA control system.
ZHANG Wen-zhong, WANG Qian, HA Da-lei
core   +1 more source

Low-frequency Magnetic Field Emission and Limited Value Inside EMUs

open access: yes, 2013
Based on the synthesized analysis of correlative standards and measurement data, requirement of low-frequency magnetic field limited value for EMUs was put forward, which is advantageous for drafting railway specification of electromagnetic radiation ...
WANG Yi-min, CAI Wan-yin, YU Ding-hua
core   +1 more source

Influence of skirt board height above rail surface on aerodynamic performance of intercity EMUs

open access: yes机车电传动
Electric multiple units (EMUs) are equipped with skirt plates to mitigate airflow impact on underfloor equipment and thereby reduce aerodynamic drag.
FANG Ming   +4 more
doaj  

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