Abstract: The great majority of the Palaeozoic orogenic belts of Central Asia are of the intercontinental type, whose evolution always follows a five-stage model, i.e. the basal continental crust-extensional transitio...Abstract: The great majority of the Palaeozoic orogenic belts of Central Asia are of the intercontinental type, whose evolution always follows a five-stage model, i.e. the basal continental crust-extensional transitional crust-oceanic crust-convergent transitional crust-new continental crust model. The stage for the extensional transitional crust is a pretty long, independent and inevitable phase. The dismembering mechanism of the basal continental crust becoming an extensional continental crust is delineated by the simple shear model put forward by Wernike (1981). The continental margins on the sides of a gently dipping detachment zone and moving along it are asymmetric: one side is of the nonmagmatic type and the other of the magmatic type with a typical bimodal volcanic formation. In the latter case, however, they were often confused with island arcs. This paper discusses the five-stage process of the crustal evolution of some typical orogenic belts in Xinjiang.展开更多
为了解决地铁列车运力不足,缩短列车追踪间隔,提出了新型列控系统、相对移动闭塞和协同运行三者相结合的方法,构建了列车通信协同运行模型。在该模型下,精细化前后列车冲突区域,对正线和站后折返最小追踪间隔分别优化建模,提出缩短追踪...为了解决地铁列车运力不足,缩短列车追踪间隔,提出了新型列控系统、相对移动闭塞和协同运行三者相结合的方法,构建了列车通信协同运行模型。在该模型下,精细化前后列车冲突区域,对正线和站后折返最小追踪间隔分别优化建模,提出缩短追踪间隔的行车策略。经实际线路仿真计算,相比基于通信的列车运行控制系统(communication based train control,CBTC)列车通过能力提升了32.3%,且4A编组可以满足79.9 s的行车间隔。考虑缩短行车间隔对运营效能的影响,将运营效能量化为运输率、满载率、单位能耗、等车时间,对不同行车方案进行评估。结果表明,对于单向小时断面客流量小于6.4万的线路,通过调节行车间隔,4A编组在满足满载率下,比6A、8A编组能耗更小,等车时间更短。展开更多
文摘Abstract: The great majority of the Palaeozoic orogenic belts of Central Asia are of the intercontinental type, whose evolution always follows a five-stage model, i.e. the basal continental crust-extensional transitional crust-oceanic crust-convergent transitional crust-new continental crust model. The stage for the extensional transitional crust is a pretty long, independent and inevitable phase. The dismembering mechanism of the basal continental crust becoming an extensional continental crust is delineated by the simple shear model put forward by Wernike (1981). The continental margins on the sides of a gently dipping detachment zone and moving along it are asymmetric: one side is of the nonmagmatic type and the other of the magmatic type with a typical bimodal volcanic formation. In the latter case, however, they were often confused with island arcs. This paper discusses the five-stage process of the crustal evolution of some typical orogenic belts in Xinjiang.
文摘为了解决地铁列车运力不足,缩短列车追踪间隔,提出了新型列控系统、相对移动闭塞和协同运行三者相结合的方法,构建了列车通信协同运行模型。在该模型下,精细化前后列车冲突区域,对正线和站后折返最小追踪间隔分别优化建模,提出缩短追踪间隔的行车策略。经实际线路仿真计算,相比基于通信的列车运行控制系统(communication based train control,CBTC)列车通过能力提升了32.3%,且4A编组可以满足79.9 s的行车间隔。考虑缩短行车间隔对运营效能的影响,将运营效能量化为运输率、满载率、单位能耗、等车时间,对不同行车方案进行评估。结果表明,对于单向小时断面客流量小于6.4万的线路,通过调节行车间隔,4A编组在满足满载率下,比6A、8A编组能耗更小,等车时间更短。
