搜索结果: 136-150 共查到“知识库 交通运输工程其他学科”相关记录603条 . 查询时间(0.668 秒)
基于层次分析法的城市轨道交通运营成本控制研究
城市轨道交通 运营成本 层次分析法 指标权重
2010/8/19
通过对城市轨道交通运营体系中各因素的分析，构建层次分析结构模型，应用层次分析法（AHP）的基本原理，确定轨道交通运营体系中各相关因素的重要性程度排序。评价结果表明，行车管理是轨道交通运营体系中创造价值的关键点，也是成本控制的关键点。
The mixture of biobutanol and petrol for Otto engines
petrol biobutanol emissions Otto engines biofuel engine speed
2010/10/29
The expansion of production and the use of biofuels are determined by the legal acts of the European Commission and National legal acts encouraging such production and usage. It would be meaningful to...
The uncertainty evaluation method of supply chain reliability
supply chains reliability evaluation uncertainty cloud theory random variables fuzzy rules
2010/10/29
The objective of the article is to scientifically evaluate supply chain reliability (SCR). We argue that this problem relates to two aspects - the cognition and expression of SCR. The paper considers ...
Saturation flow versus green time at two-stage signal controlled intersections
saturation flow traffic signals green time intersection capacity
2010/10/29
Intersections are the key components of road networks considerably affecting capacity. As flow levels and experience have increased over the years, methods and means have been developed to cope with g...
A two-phase method for the capacitated facility problem of compact customer sub-sets
facility customer demands capacitated location problem Lagrangean relaxation customer sub-set compactness
2010/10/29
The cost optimal design of the majority of distribution and servicing systems consists of decisions on a number and on the locations of facilities from which customers’ demands are satisfied; however,...
Comparison of different capacity models for traffic circles
traffic circles roundabouts capacity gap acceptance theory regression analysis origin-destina¬ tion matrix
2010/10/29
Traffic circles have been used in many countries all over the world. Traffic circles can be defined as intersections where traffic circulates around a center island where priority is given to the vehi...
浅论电动自行车交通管理的现状及对策
电动自行车交通管理 现状 对策
2013/6/8
电动自行车在我国从起步到普及还不到10年时间。据不完全统计，1998年全国的电动自行车为5.4万辆， 2001年电动自行车的实际产量超过58万辆，至2007年10月，全国电动自行车市场保有量已达3000多万辆。从这些数字可以看出，这一新型的道路交通工具已成为中低收入家庭不可或缺的出行工具。但由于对电动自行车的管理措施或者法律法规与其本身的发展不相适应，使得电动自行车在带给群众方便实惠的同时，也出现...
Carrier’s liability under international maritime conventions and the UNCITRAL draft convention on contracts for the international carriage of goods wholly or partly by sea
draft convention carrier’s liability Hague-visby rules Hamburg rules CMC
2010/11/1
The UNCITRAL Draft Convention on Contracts for the International Carriage of Goods Wholly or Partly by Sea was approved on Thursday, 3 July 2008 and would then be presented to the General Assembly of ...
The railway information system as a queueing system
statistics information systems failures queuing system railway frequency of failures
2010/11/1
The present article dwells upon the Information System (IS) of Latvian railways providing the analysis of the queuing system (QS) used to removing defects occurring in the infinite linear queuing syst...
Mathematical modelling of network traffic flow
traffic flow intersection modelling traffic flow regulation vehicle
2010/11/1
The article describes mathematical models of traffic flows to initiate different traffic flow processes. Separate elements of traffic flow models are made in a way to be connected together to get a si...
The aspect of vector control using the asynchronous traction motor in locomotives
inverter traction converter vector control locomotive asynchronous traction motor encoder
2010/11/1
The article examines curves controlling asynchronous traction motors increasingly used in locomotive electric drives the main task of which is to create a tractive effort-speed curve of an ideal locom...
Space-Time Prism Vertices：Exploring Gender Differences and Multiple-Peak Distributions in Arrival and Departure Times
prism vertex stochastic frontier model space-time constraints
2010/2/1
This paper investigates gender differences in the origin and terminal vertices of the time-space prism. Using the stochastic frontier method, separate models are constructed for females and males, bas...
玻璃外围护对地铁车站空调负荷的影响分析
地铁车站 玻璃外围护 天窗 空调冷负荷
2010/8/31
针对民用建筑和轨道交通地下车站的空调冷负荷的区别,提出对地下车站顶板设天窗的常见玻璃外围护形式进行逐时冷负荷计算和室外计算温度变化相结合的分析方法,并对标准站天窗的开设面积和客流变化对公共区冷负荷和空调设备容量的影响作了分析,得出了基本不增加空调设备容量的天窗比例。以轨道交通11号线隆德路站作为案例分析,所得参数可作为类似工程的参考。
上海市轨道交通9号线盾构上穿1号线影响分析
城市轨道交通 盾构掘进 穿越施工 地表变形
2010/8/17
上海市轨道交通9号线盾构在推进至衡山路天平路附近时,上穿运营中的轨道交通1号线。两线隧道之间的最小垂直净距仅约1.1 m,而覆土厚度只有4.25 m。9号线穿越施工一方面必须严格控制地面隆起或沉降,另一方面还必须控制运营中的1号线隧道的上浮和变形情况。利用ANSYS软件对该穿越工况进行了三维仿真,分析了9号线隧道穿越施工对1号线的影响及施工过程中的地表变形;同时提出了相应的技术措施,如设置抗浮板,...