Results 111 to 120 of about 151,854 (247)

Microstructure and Mechanical Property Tailoring in Asymmetrically Shear-Extruded Mg-2.0Al-0.8Sn-0.5Ca Alloys via Zn Addition

open access: yesCrystals
This study systematically examines the influence of Zn addition (≤0.6 wt.%) on the microstructure and mechanical properties of Mg-2Al-0.8Sn-0.5Ca (wt.%) alloys.
Chao Wang   +5 more
doaj   +1 more source

European Railway Comparisons: Final Report [PDF]

open access: yes, 1994
The Institute for Transport Studies (ITS), University of Leeds and the British Railways Board (BRB) carried out a major comparative study of Western European railways in the late 1970s (BRB and University of Leeds, 1979).
Garlick, M.   +4 more
core  

Speculation in the United Kingdom, 1785‒2019

open access: yesThe Economic History Review, EarlyView.
Abstract Speculation has long been thought to have significant economic effects, but it is difficult to measure, making it challenging to examine these effects empirically. In this paper we measure speculation in the United Kingdom since 1785 by using business and financial reporting in The Times newspaper.
William Quinn   +2 more
wiley   +1 more source

Introduction and Analysis of Railway Vehicle EMC Standard

open access: yes机车电传动, 2013
EMC standards of domestic and oversea railway vehicle design and test were introduced, and domestic railway vehicle EMCconditions were analyzed. Similarities and differences of the standards were compared in detail, as well as advantages and shortcomings
XU Shi-dong   +3 more
doaj  

Safety Relevant Positioning Applications in Rail Traffic using the European Satellite System "Galileo" [PDF]

open access: yes, 2006
Die Ortung im Eisenbahnverkehr hat eine hohe sicherheitstechnische Relevanz. Eine falsch detektierte Position eines Fahrzeugs kann zu einer erheblichen Gefährdung führen, da die ermittelte Ortsinformation für die Freigabe und das Wiederbesetzen von ...
Grimm, Matthias   +3 more
core  

Competition Law and Public Interest: A Challenge for Adjudication

open access: yesEuropean Law Journal, EarlyView.
ABSTRACT This paper engages with the increasing concern that competition law can no longer concentrate exclusively on a narrow focus on price increases and output diminution. Within the context of growing global inequality and the exponential increase in economic power in the hands of a few, there is a need to develop a coherent jurisprudence capable ...
Dennis M. Davis
wiley   +1 more source

Exact and metaheuristic approaches to minimizing makespan in parallel machine scheduling with conflicting jobs

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract We address the scheduling conflicting jobs on parallel identical machines problem with makespan minimization, a classical and computationally challenging variant of parallel machine scheduling. We develop and evaluate three distinct solution methodologies: a novel constraint programming (CP) formulation, and two metaheuristics: a multi ...
Roberto Maria Rosati   +3 more
wiley   +1 more source

Study of the anomaly detection on rail by a tachometer generator of a train

open access: yesNihon Kikai Gakkai ronbunshu
Most rolling stocks in Japan have tachometer generators on their axle ends. The only function of the tachometer generator is measuring rotational speed of the axle based on the frequency of the output signal.
Gaku YOSHIKAWA
doaj   +1 more source

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