搜索结果: 1-5 共查到“航空运输 transportation”相关记录5条 . 查询时间(0.109 秒)
International Air Transportation Carriers: Evidence from SFA and DEA Technical Efficiency Results（1991-2000）
Air Transportation Technical Efficiency Stochastic Frontier Analysis
2010/2/1
In this paper we estimate technical efficiency in International Air Transport, by means of Stochastic Frontier Analysis (SFA) using a panel set of the world's twenty-four (24) largest network airlines...
U.S. and Europe Agree on Civil Space Transportation Cooperation
Civil Space Transportation Cooperation U.S Europe
2009/9/16
NASA Administrator Charles Bolden and European Space Agency (ESA) Director General Jean-Jacques Dordain signed a memorandum of understanding Friday for cooperation in the field of space transportation...
Risk analysis and assessment for transportation of dangerous freight
dangerous freight risk transport safety
2010/11/1
This work examines conditions to ensure safe transportation of dangerous freight, to manage and minimize the risk of carriage of such freight along the whole route. This article presents the probabili...
A mathematical model of selecting transport facilities for multimodal freight transportation
route mathematical model costs time
2010/11/1
A system of functional relationships between speed, traffic safety and costs, based on a set of criteria describing transportation quality is presented. The overall technological costs of transportati...
U.S. Department of Transportation Withdraws International Investment Rule – Commits to Working on Open Skies Agreement
International Investment Rule airlines
2006/12/6
December 5, 2006，U.S. Transportation Secretary Mary E. Peters today announced the Department is withdrawing a proposal that would have changed rules governing international investment in U.S. airlines...