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公共汽电车站乘客服务设施服务水平分析
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作者 林泊生 杨新苗 史其信 《城市公共交通》 2009年第8期32-34,共3页
乘客服务设施是公共汽电车站设施的重要组成部分。乘客服务设施主要包括步行通道、楼梯、候车厅等。本文提出了适用于乘客服务设施设计的服务水平的概念和指标。采用服务水平的设施设计方法,能够直接体现乘客在使用公交服务设施过程中... 乘客服务设施是公共汽电车站设施的重要组成部分。乘客服务设施主要包括步行通道、楼梯、候车厅等。本文提出了适用于乘客服务设施设计的服务水平的概念和指标。采用服务水平的设施设计方法,能够直接体现乘客在使用公交服务设施过程中的空间感知与评价,充分反映乘客服务需求,为乘客服务设施设计提供基本依据,用于评价乘客服务设施的服务水平,有助于有效提高公共汽电车站乘客服务设施的服务水平。 展开更多
关键词 公共汽电车站 乘客服务设施 服务水平
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德国凯尔市新电车站
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《现代装饰》 2019年第5期191-191,共1页
2018年12月起莱茵河旁的新电车线路将德国凯尔(Kehl)和法国斯特拉斯堡(Strasbourg)两个城市相连,使两者联系变得比以往更加密切。在法国一端,由Zaha Hadid设计的地景式折叠空间终点车站在2001年建造完成。在另一端德国境内的凯尔市政厅... 2018年12月起莱茵河旁的新电车线路将德国凯尔(Kehl)和法国斯特拉斯堡(Strasbourg)两个城市相连,使两者联系变得比以往更加密切。在法国一端,由Zaha Hadid设计的地景式折叠空间终点车站在2001年建造完成。在另一端德国境内的凯尔市政厅,一个新的车站已经被建立完成,设计由J.MayerH.Architects负责。这是一个由裸露混凝土圆盘组成的雕塑般的基础设施,交织了动感、平衡感、失衡感和流动感等。两座城市,两个各有特色的电车站共同串联起了'小型边境交通'的日常。 展开更多
关键词 两者 平衡感 车站 电车 电车站 地景 雕塑 德国
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Long-term kinematics and mechanism of a deep-seated slow-moving debris slide near Wudongde hydropower station in Southwest China 被引量:2
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作者 JIANG Shu WANG Yi-feng +1 位作者 TANG Chuan LIU Ke 《Journal of Mountain Science》 SCIE CSCD 2018年第2期364-379,共16页
Long-term kinematic research of slow- moving debris slide is rare despite of the widespread global distribution of this kind. This paper presents a study of the kinematics and mechanism of the Jinpingzi debris slide l... Long-term kinematic research of slow- moving debris slide is rare despite of the widespread global distribution of this kind. This paper presents a study of the kinematics and mechanism of the Jinpingzi debris slide located on the Jinsha river bank in southwest China. This debris slide is known to have a volume of 27×106 ms in active state for at least one century. Field survey and geotechnical investigation were carried out to define the structure of the landslide. The physical and mechanical properties of the landslide materials were obtained by in-situ and laboratory tests. Additionally, surface and subsurface displacements, as well as groundwater level fluctuations, were monitored since 2005. Movement features, especially the response of the landslide movement to rainfall, were analysed. Relationships between resisting forces and driving forces were analysed by using the limit equilibrium method assuming rigid-plastic frictional slip. The results confirmed a viscous comoonent in the long-term continuous movement resulting in the quasioverconsolidated state of the slip zone with higher strength parameters than some other types of slowmoving landslides. Both surface and subsurface displacements showed an advancing pattern by the straight outwardly inclined (rather than gently or reversely inclined) slip zone, which resulted in low resistance to the entire sliding mass. The average surface displacement rate from 2005 to 2016 was estimated to be 0.19-0.87 mm/d. Basal sliding on the silty clay seam accounted for most of the deformation with different degrees of internal deformation in different parts. Rainfall was the predominant factor affecting the kinematics of Jinpingzi landslide while the role of groundwater level, though positive, was not significant. The response of the groundwater level to rainfall infiltration was not apparent. Unlike some shallow slow-moving earth flows or mudslides, whose behaviors are directly related to the phreatic groundwater level, the mechanism for Jinpingzi landslide kinematics is more likely related to the changing weight of the sliding mass and the downslope seepage pressure in the shallow soil mass resulting from rainfall events. 展开更多
关键词 KINEMATICS Slow-moving debris slide Shear strength Rainfall infiltration Viscouscomponent
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An Anonymous Authentication Scheme for Plugin Electric Vehicles Joining to Charging/Discharging Station in Vehicle-to-Grid(V2G) Networks 被引量:2
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作者 CHEN Jie ZHANG Yueyu SU Wencong 《China Communications》 SCIE CSCD 2015年第3期9-19,共11页
Incorporating electric vehicles into smart grid,vehicle-to-Grid(V2G) makes it feasible to charge for large-scale electric vehicles,and in turn support electric vehicles,as mobile and distributed storage units,to disch... Incorporating electric vehicles into smart grid,vehicle-to-Grid(V2G) makes it feasible to charge for large-scale electric vehicles,and in turn support electric vehicles,as mobile and distributed storage units,to discharge to smart grid.In order to provide reliable and efficient services,the operator of V2 G networks needs to monitor realtime status of every plug-in electric vehicle(PEV) and then evaluate current electricity storage capability.Anonymity,aggregation and dynamic management are three basic but crucial characteristics of which the services of V2 G networks should be.However,few of existing authentication schemes for V2 G networks could satisfy them simultaneously.In this paper,we propose a secure and efficient authentication scheme with privacy-preserving for V2 G networks.The scheme makes the charging/discharging station authenticate PEVs anonymously and manage them dynamically.Moreover,the monitoring data collected by the charging/discharging station could be sent to a local aggregator(LAG)in batch mode.In particular,time overheads during verification stage are independent with the number of involved PEVs,and there is no need to update the membership certificate and key pair before PEV logs out. 展开更多
关键词 smart grid Vehicle-to-Grid(V2G) networks anonymous authentication revocable group signature
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Modeling electric vehicle's following behavior and numerical tests 被引量:3
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作者 杨世春 赵倩 唐铁桥 《Journal of Central South University》 SCIE EI CAS 2014年第11期4378-4385,共8页
The micro modeling for electric vehicle and its solution were investigated. A new car-following model for electric vehicle was proposed based on the existing car-following models. The impacts of the electric vehicle&#... The micro modeling for electric vehicle and its solution were investigated. A new car-following model for electric vehicle was proposed based on the existing car-following models. The impacts of the electric vehicle's charging electricity were studied from the numerical perspective. The numerical results show that the electric vehicle's charging electricity will destroy the stability of uniform flow and produce some prominent queues and these traffic phenomena are directly related to the initial headway, the distance between two adjacent charging stations and the number of charging stations. The above results can help traffic engineer to choose the position of charging station and the electric vehicle's driver to adjust his/her driving behavior in the traffic system with charging station. 展开更多
关键词 electric vehicle charging electricity following behavior uniform flow
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Precision blasting excavation of rock face beam in underground hydropower station under complex geological conditions 被引量:1
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作者 Li Changneng Xu Chengguang 《Engineering Sciences》 EI 2014年第6期46-51,共6页
To deal with the construction difficulties of Xiangjiaba underground hydropower station,such as complex geological conditions,narrow rock bench,high loading,high quality requirements and urgent time limit,the project ... To deal with the construction difficulties of Xiangjiaba underground hydropower station,such as complex geological conditions,narrow rock bench,high loading,high quality requirements and urgent time limit,the project adopted the concept of precision blasting.The explosive energy and rock mass fragmentation were well controlled by taking reasonable excavation sequence,designing steel pipe drilling frame,the additional techniques of double layer smooth blasting,evenly micro charge,staggered arrangement of boreholes and pre-stressed anchors.These technologies ensured the excavation quality of the rock face beam,achieving successful blasting results:Semi hole ratio was 100%in Ⅱ surrounding rock,99.2%in Ⅲ surrounding rock and 90%~ 97.3%in Ⅳ surrounding rock;underbreak was avoided and the average backbreak was only2.9 cm;the unevenness was 0 ~ 4 cm;the influence depth of blasting and unloading was 0.2 ~ 0.7 cm. 展开更多
关键词 Xiangjiaba hydropower station underground workshop rock face beam precision blasting exca- vation
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Energy management and coordination control of microgrid in elevated station of urban rail transit 被引量:2
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作者 LU Tao-tao TIAN Ming-xing +1 位作者 ZHANG Ning GAO Feng-yang 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2019年第4期398-404,共7页
The rapid development of urban rail transit brings convenience to the public,but its huge energy consumption problem cannot be ignored.A microgrid composed of photovoltaic power generation unit,regenerative braking en... The rapid development of urban rail transit brings convenience to the public,but its huge energy consumption problem cannot be ignored.A microgrid composed of photovoltaic power generation unit,regenerative braking energy feedback unit and battery energy storage unit is proposed,which provides green power for the station.In order to suppress the fluctuation of photovoltaic power generation and the intermittence of regenerative braking feedback energy,the energy management mode of microgrid is designed according to the illumination situation,braking energy feedback situation,battery state of charge and so on.In addition,a coordination control method based on virtual synchronous generator(VSG)is proposed to realize smooth switching among modes.Finally,the proposed energy management and coordination control method for elevated station microgrid is verified by Matlab/Simulink.The results show that the elevated station microgrid can operate safely and reliably under various energy management modes and realize smooth switching among modes. 展开更多
关键词 urban rail transit elevated station saving energy and reducing consumption MICROGRID virtual synchronous generator(VSG) regenerative braking energy feedback
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Operational program for proper capacity of electric bus charging station in Expo 2010
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作者 张维戈 Shi Wei +2 位作者 Sun Bingxiang Jia Rongda Li Xiaoqiang 《High Technology Letters》 EI CAS 2013年第4期437-442,共6页
In the paper,an operational program of electric bus charging station is proposed,which is special for "The Construction Project for Expo 2010 Temporary Electric Bus Charging Station".Based on the quick-chang... In the paper,an operational program of electric bus charging station is proposed,which is special for "The Construction Project for Expo 2010 Temporary Electric Bus Charging Station".Based on the quick-change mode,a vehicle operating schedule model has been established to meet the capacity of transport.Then,according to the quantity of passengers and utilization of batteries,a calculative method of parameters,such as the number of spare batteries and bus departure rules,has been provided.Furthermore,optimal simulation software designed for operating process of the charging station has been identified incorporating actual running data from electric buses and monitoring system of the charging station,and the rationality of the design is verified in the preliminary commissioning and the official operation. 展开更多
关键词 electric bus charging station operational program simulation software
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Evaluation of a PV Powered EV Charging Station and Its Buffer Battery
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作者 Hengbing Zhao Andrew Burke 《Journal of Energy and Power Engineering》 2016年第2期121-128,共8页
This research analyses the operation of a solar PV powered electric vehicle charging station with energy storage, that has been developed and demonstrated at the University of California--Davis, West Village, the larg... This research analyses the operation of a solar PV powered electric vehicle charging station with energy storage, that has been developed and demonstrated at the University of California--Davis, West Village, the largest planned zero-energy consumption community in the U.S. The intelligent energy management approach introduces solar PV electrical energy forecasting and EV (electric vehicle) charging demand projection to optimize the SOC (state of charge) of the buffer battery. The charging station has been operated continuously and routinely used by several EV users for a year. The actual operation shows that, a workplace charging station equipped with a buffer battery and with intelligent energy management can lower and reduce the station's peak power demand, and reduce the energy exchange with the utility grid by a factor of 2. The battery recharging power demand was shifted away from the on-peak time periods to the off-peak time periods, which will benefit the charging station owner from less energy use during peak periods when time-of-use rates are higher. The standard cell voltage deviation of the 220 cells was calculated to analyse the battery cell consistency during the resting, charging and discharging periods. The analysis shows that, the 220 50Ah cells show excellent voltage consistency with voltage deviation of less than 0.005 V within the battery SOC of 20%-80%. The voltage deviation doubles when the battery SOC reaches 90%. The comparison of cell voltage deviation at the beginning and after one year operation indicates that, the battery shows perfect cell voltage consistency and there is no obvious consistency deterioration during the battery resting, charging and discharging periods. 展开更多
关键词 EV CHARGING solar energy power management intelligent.
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Distributed Bio-Hydrogen Refueling Stations 被引量:1
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作者 Peter J. Schubert 《Journal of Earth Science and Engineering》 2016年第4期183-190,共8页
Hydrogen fuel cell cars are now available for lease and for sale. Renewable hydrogen fuel can be produced from water via electrolysis, or from biomass via gasification. Electrolysis is power-hungry with high demand fr... Hydrogen fuel cell cars are now available for lease and for sale. Renewable hydrogen fuel can be produced from water via electrolysis, or from biomass via gasification. Electrolysis is power-hungry with high demand from solar or wind power. Gasification, however, can be energy self-sufficient using a recently-patented thermochemical conversion technology known as I-HPG (indirectly-heated pyrolytic gasification). I-HPG produces a tar-free syngas from non-food woody biomass. This means the balance of plant can be small, so the overall system is economical at modest sizes. This makes it possible to produce renewable hydrogen from local agricultural residues; sufficient to create distributed refueling stations wherever there is feedstock. This work describes the specifics of a novel bio-hydrogen refueling station whereby the syngas produced has much of the hydrogen extracted with the remainder powering a generator to provide the electric power to the I-HPG system. Thus the system runs continuously. When paired with another new technology, moderate-pressure storage of hydrogen in porous silicon, there is the potential to also power the refueling operation. Such systems can be operated independently. It is even possible to design an energy self-sufficient farm where all electric power, heat, and hydrogen fuel is produced from the non-food residues of agricultural operations. No water is required, and the carbon footprint is negative, or at least neutral. 展开更多
关键词 BIOMASS HYDROGEN distributed generation fuel cell vehicle
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The Bi-directional Three-Phase PWM Rectifier Inverter for Electric Vehicle Charging Station
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作者 Lei Shi Haiping Xu Dongxu Li Zuzhi Zhang Yuchen Han Zengquan Yuan 《Journal of Energy and Power Engineering》 2013年第7期1370-1376,共7页
Applications of electric vehicles need to build a large number of charging stations. The electric vehicle charging stations communicate with the grid. In V2G (vehicle to grid) mode, electric vehicles can be used as ... Applications of electric vehicles need to build a large number of charging stations. The electric vehicle charging stations communicate with the grid. In V2G (vehicle to grid) mode, electric vehicles can be used as energy storage units and transfer power to the grid. The electric vehicles charge at night to reduce the cost and the grid load, simultaneously to fill the valley. When grid load increases, electric vehicles' batteries discharge to the grid to improve the stability of the grid. As distributed storage units, electric vehicles are important components of the smart grid. In this paper, the three-phase PWM (pulse width modulation) rectifier used for smart charging and discharging system of electric vehicles are analyzed and designed. This paper includes the principle of PWM rectifier-inverter and direct current control strategy. Also, the SVPWM (space vector pulse width modulation) and system design of three-phase PWM rectifiers are analyzed. A 10 kW prototype is developed. Simulation and experiment results show that the three-phase PWM rectifiers reach the unit power factor. From the experimental results, PWM rectifier implements the sinusoidal grid current and achieves the unit power factor. 展开更多
关键词 PWM rectifier electric vehicle charging stations smart grid.
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Vehicle-to-Grid Technology: State-of-the-Art and Future Scenarios
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作者 Alfonso Damiano Gianluca Gatto lgnazio Marongiu Mario Porru Alessandro Serpi 《Journal of Energy and Power Engineering》 2014年第1期152-165,共14页
An overview of V2G (vehicle-to-grid) technology is presented in this paper, it aims to highlight the main features, opportunities and requirements of V2G. Thus, after briefly resuming the most popular charging strat... An overview of V2G (vehicle-to-grid) technology is presented in this paper, it aims to highlight the main features, opportunities and requirements of V2G. Thus, after briefly resuming the most popular charging strategies lbr PEVs (plug-in electric vehicles), the V2G concept is introduced, especially highlighting its potentiality as a revenue opportunity |br PEV owners: this is mainly due to the V2G ability to provide ancillary services, such as load leveling, regulation and reserve. Such solutions have been thoroughly investigated in the literature from both the economic and technical points of view and are here reported. In addition, V2G requirements such as mobility needs, charging stations availability and appropriate PEV aggregative architectures are properly taken into account. Finally, future developments and scenarios have also been reported. 展开更多
关键词 V2G (vehicle-to-grid) EV (electric vehicles) BEV (batter)' electric vehicle) mobility regulation.
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上海市公共汽车和电车客运管理条例 被引量:1
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《新法规月刊》 2000年第11期25-32,共8页
第一章 总则 第一条 为了加强本市公共汽车和电车客运管理,维护营运秩序,提高服务质量,保障乘客和经营者的合法权益,促进公共汽车和电车客运的发展,根据本市实际情况,制定本条例。 第二条 本条例适用于本市行政区域内公共汽车和电车客... 第一章 总则 第一条 为了加强本市公共汽车和电车客运管理,维护营运秩序,提高服务质量,保障乘客和经营者的合法权益,促进公共汽车和电车客运的发展,根据本市实际情况,制定本条例。 第二条 本条例适用于本市行政区域内公共汽车和电车客运的经营及其相关的管理活动。 展开更多
关键词 经营者 线路经营权 客运管理 交通局 管理处 电车站 驾驶员 汽车 营运车辆 售票员
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马扎尔姑娘——东欧四国行纪事之一
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作者 战鹰 《海内与海外》 1996年第11期73-74,共2页
我们“中国侨联赴东欧考察团”一行五人行踪的第一站,便是久已在胸中固化成流光溢彩的“多瑙河明珠”的匈牙利首府布达佩斯,而在匈牙利首府市达佩斯声名遐迩的13区贝克大街26号的“香港饭店”,则又是我们“考察团”的第一个下榻处。 这... 我们“中国侨联赴东欧考察团”一行五人行踪的第一站,便是久已在胸中固化成流光溢彩的“多瑙河明珠”的匈牙利首府布达佩斯,而在匈牙利首府市达佩斯声名遐迩的13区贝克大街26号的“香港饭店”,则又是我们“考察团”的第一个下榻处。 这座面街壁立的八千平方米土黄色四层大楼,是接待我们来访的匈牙利华人联合总会不久前购买的,时下正进行修缮。我们被安排在已经装葺一新的三层一个一明两暗的临时居室。据悉。 展开更多
关键词 行纪 姑娘 匈牙利 侨联 布达佩斯 贝克 考察团 香港 电车站 天空
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留学扶桑随笔(三)
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作者 王大力 《游泳》 1995年第2期11-10,共2页
新的学习生活开始。 第二天一清早,匆匆吃了几口饭,便出门上路。学校离我的驻地很远,要换三次车才能到达。第一站需我自己乘公共汽车到电车站。这段路虽说只有六、七公里,如骑自行车也不过十几分钟,同我住在一起的同学大都骑自行车去。... 新的学习生活开始。 第二天一清早,匆匆吃了几口饭,便出门上路。学校离我的驻地很远,要换三次车才能到达。第一站需我自己乘公共汽车到电车站。这段路虽说只有六、七公里,如骑自行车也不过十几分钟,同我住在一起的同学大都骑自行车去。我刚到日本。 展开更多
关键词 扶桑 随笔 电车 电车站 学习生活 校友 乘公共汽车 日本汉字 忐忑不安 驻地
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Excavation-induced microseismicity: microseismic monitoring and numerical simulation 被引量:9
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作者 Nu-wen XU Chun-an TANG +4 位作者 Hong LI Feng DAI Ke MA Jing-dong SHAO Ji-chang WU 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2012年第6期445-460,共16页
The volume of influence of excavation at the right bank slope of Dagangshan Hydropower Station, southwest China, is essentially determined from microseismic monitoring, numerical modeling and conventional measurements... The volume of influence of excavation at the right bank slope of Dagangshan Hydropower Station, southwest China, is essentially determined from microseismic monitoring, numerical modeling and conventional measurements as well as in situ observations. Microseismic monitoring is a new application technique for investigating microcrackings in rock slopes. A micro- seismic monitoring network has been systematically used to monitor rock masses unloading relaxation due to continuous exca- vation of rock slope and stress redistribution caused by dam impoundment later on, and to identify and delineate the potential slippage regions since May, 2010. An important database of seismic source locations is available. The analysis of microseismic events showed a particular tempo-spatial distribution. Seismic events predominantly occurred around the upstream slope of 1180 m elevation, especially focusing on the hanging wall of fault XL316-1. Such phenomenon was interpreted by numerical modeling using RFPA-SRM code (realistic failure process analysis-strength reduction method). By comparing microseismic activity and results of numerical simulation with in site observation and conventional measurements results, a strong correlation can he obtained between seismic source locations and excavation-induced stress distribution in the working areas. The volume of influence of the rock slope is thus determined. Engineering practices show microseismic monitoring can accurately diagnose magnitude, intensity and associated tempo-spatial characteristics of tectonic activities such as faults and unloading zones. The integrated technique combining seismic monitoring with numerical modeling, as well as in site observation and conventional surveying, leads to a better understanding of the internal effect and relationship between microseismic activity and stress field in the right bank slope from different perspectives. 展开更多
关键词 Microseismic monitoring Rock slope Numerical simulation Stability analysis Dagangshan Hydropower Station
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