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| 1 | Epoxy asphalt concrete paving on the deck of long-span steel bridges显示文摘It is the first systematic research in the world on the composition design of epoxy asphalt concrete as pav- ing material. Material characteristics and service perform- ance of mixture, fatigue resistance characteristics of epoxy asphalt concrete by the fatigue test of complex beam have also been described. This research indicates that epoxy as-phalt concrete is a good type of paving material. Research results have been applied successfully in the paving of steel deck of the Second Nanjing Yangtze River Bridge (SNYRB). It provides a new paving type for long-span steel bridges of China and has a bright application prospect. | HUANG Wei, QIAN Zhendong, CHEN Gang & YANG Jun Transportation College, Southeast University, Nanjing 210096, China Correspondence should be addressed to Huang Wei (e-mail: hwei@ seu.edu.cn) | 2003 | Chinese Science Bulletin2003，48，21： | 47 |
| 2 | Research on nonlinear constitutive relationship of permanent deformation in asphalt pavements显示文摘To predict correctly the rut depths in asphalt pavements,a new nonlinear viscoelastic-elastoplastic constitutive model of permanent deformation in asphalt pave-ments is presented. The model combines a generalized Maxwell model with an elasto-plastic one. Then from the creep theory,the linear and nonlinear constitutive equations of the generalized Maxwell model are obtained. From the nonlinear finite element method for the rutting of the asphalt pavement,the rut depths of 4 asphalt-aggregate mixtures are obtained. And the results are compared with the ones from the finite element method by SHRP and the experiments by SWK/UN. The results in this paper are better than the ones by SHRP,and agree with the ones of the experiment by SWK/UN. This shows that the nonlinear viscoelastic-elastoplastic constitutive model,which is presented in this paper for the rutting of the asphalt pavement,is effective. The properties,such as nonlinear elastic-ity,plasticity,viscoelasticity and nonlinear viscoelasticity,which affect the rutting of an asphalt pavement,can be shown in the model. And the characteristics of the permanent deformation of the asphalt pavement can be presented entirely in the model. | PENG Miaojuan1 & XU Zhihong2 1. Department of Civil Engineering,Shanghai University,Shanghai 200072,China 2. School of Transportation Engineering,Tongji University,Shanghai 200092,China | 2006 | Science China(Physics,Mechanics & Astronomy)2006，49，6： | 16 |
| 3 | 综合交通网中长期发展规划显示文摘交通运输作为基础产业,对国民经济和社会发展至关重要.改革开放以来,我国交通运输发展迅速,综合交通网络规模不断扩大,网络布局和结构得到改善,设施装备水平较大提高,运输能力显著增强.但从总体上看,交通运输仍然不能适应国民经济和社会发展的需要,'瓶颈'制约尚未完全消除,结构性矛盾仍较突出.根据党的十六大提出的全面建设小康社会总体任务,需要加快建立便捷、通畅、高效、安全的综合运输体系,以最小的资源和环境代价满足经济社会对运输的总需求.为明确我国交通基础设施的发展目标和任务,统筹协调各种运输方式,合理配置和有效利用交通运输资源,发挥综合交通的整体优势,国家发展改革委会同有关部门,组织编制了《综合交通网中长期发展规划》. | Department of Transportation of National Development and Reform Commission (Department of Transportation of National Development and Reform Commission,Beijing 100824,China) | 2008 | 交通运输系统工程与信息2008，8，1： | 15 |
| 4 | New adaptive quasi-sliding mode control for nonlinear discrete-time systems显示文摘A new adaptive quasi-sliding mode control algorithm is developed for a class of nonlinear discrete-time systems, which is especially useful for nonlinear systems with vaguely known dynamics. This design is model-free, and is based directly on pseudo-partial-derivatives derived on-line from the input and output information of the system using an improved recursive projection type of identification algorithm. The theoretical analysis and simulation results show that the adaptive quasi-sliding mode control system is stable and convergent. | Wang Weihong1,2 & Hou Zhongsheng3 1. School of Tra?c and Transportation, Beijing Jiaotong Univ., Beijing 100044, P. R. China 2. Dept. of Automation, Taiyuan Univ. of Science & Technology, Taiyuan 030024, P. R. China 3. Advanced Control Systems Lab, School of Electronics and Information Engineering, Beijing Jiaotong Univ., Beijing 100044, P. R. China | 2008 | Journal of Systems Engineering and Electronics2008，19，1： | 11 |
| 5 | A heuristic path-estimating algorithm for large-scale real-time traffic information calculating显示文摘As the original Global Position System (GPS) data in Floating Car Data have the accuracy problem,this paper proposes a heuristic path-estimating algorithm for large-scale real-time traffic information calculating. It uses the heuristic search method,imports the restriction with geometric operation,and makes comparison between the vectors composed of the vehicular GPS points and the special road network model to search the set of vehicular traveling route candidates. Finally,it chooses the most optimal one according to weight. Experimental results indicate that the algorithm has considerable efficiency in accuracy (over 92.7%) and com-putational speed (max 8000 GPS records per second) when handling the GPS tracking data whose sampling rate is larger than 1 min even under complex road network conditions. | L WeiFeng1,ZHU TongYu1,WU DongDong2,DAI Hong3 & HUANG Jian1 1 State Key Laboratory for Software Development Environment,Beihang University,Beijing 100083,China 2 Beijing Transportation Information Center,Beijing 100055,China 3 College of Arts & Science,Beijing Union University,Beijing 100083,China | 2008 | Science China(Technological Sciences)2008，51，S1： | 7 |
| 6 | Urban expressway traffic state forecasting based on multimode maximum entropy model显示文摘The accurate and timely traffic state prediction has become increasingly important for the traffic participants,especially for the traffic managements. In this paper,the traffic state is described by Micro-LOS,and a direct prediction method is introduced. The development of the proposed method is based on Maximum Entropy (ME) models trained for multiple modes. In the Multimode Maximum Entropy (MME) framework,the different features like temporal and spatial features of traffic systems,regional traffic state are integrated simultaneously,and the different state behaviors based on 14 traffic modes defined by average speed according to the date-time division are also dealt with. The experiments based on the real data in Beijing expressway prove that the MME models outperforms the already existing model in both effectiveness and robustness. | SUN XiaoLiang1,2, JIA LiMin1, DONG HongHui1, QIN Yong1 & GUO Min3 1State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China 2School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China 3Beijing Traffic Management Bureau, Beijing 100044, China | 2010 | Science China(Technological Sciences)2010，53，10： | 6 |
| 7 | A NUMERICAL MODEL OF THE WEIS-FOGH MECHANISM WITH A SEPARATION VORTEX显示文摘ANUMERICALMODELOFTHEWEIS-FOGHMECHANISMWITHASEPARATIONVORTEXZhangShe-sheng;WangXian-fu(WuhanTransportationUniversity,Wuhan4300... | Zhang She-sheng Wang Xian-fu (Wuhan Transportation University, Wuhan 430063, P. R. China) | 1994 | Journal of Hydrodynamics1994，6，4： | 5 |
| 8 | 铁路统计信息化规划显示文摘在对现有铁路统计信息系统的主要功能、数据流向、层次结构和存在问题进行认真分析后,结合铁路运输生产经营和发展的战略目标《,铁路统计信息化规划》提出,以服务运输生产组织、客货营销和经营管理,满足运输管理体制改革不断深化的需求为目标,至2020年,建成技术先进、标准统一、功能完善、结构合理、经济适用、安全可靠、具有国际先进水平的铁路统计信息系统,并据此目标,制定铁路统计信息化体系。 | Statistic Center of MOR, Transportation Bureau of MOR, Leading Group Office of Railway Informationnization | 2006 | 中国铁路2006，，8： | 5 |
| 9 | NUMERICAL INVESTIGATIONS INTO THE FRICTION REDUCTION BY MICROBUBBLES FOR FLAT PLATES显示文摘The two-dimensional flow on the flat plate with injected microbubbles is simulated using the software, PHOENICS (V3. 2), usually used in the CFD (Computational Fluid Dynamics). A set of formulas for K-ε turbulence model modified with the presence of microbubbles, is employed. With considering the effect of gravity, interfacial lift, interphase friction, virtual mass force and interfacial pressure on the flow with microbubbles, numerical calculations for the influence of variable air volume fracton as well as distribution, injecting speed, microbubble diameter and position of introducing microbubbles on the friction reduction are presented. Results show that the friction reduction increases with increasing volume fraction and microbubble diameter within the range of 100μm, and that the velocity in the boundary layer with microbubbles is greater than that without microbubbles. The order of magnitude and trends of the experimental skin-friction are reproduced well. The uniform free-stream speed in all cases is 4m/s, giving Reynolds number of up to 20 million. | Zhan De-xin, Wang Jia-mei, Lin Li-ming School of Transportation, Wuhan University of Technology, Wuhan 430063, China, | 2003 | Journal of Hydrodynamics2003，15，3： | 5 |
| 10 | A STUDY ON NONEQUILIBRIUM TRANSPORT OF NONUNIFORM BEDLOAD IN STEADY FLOW显示文摘In the case of steady flow, an equilibrium state for an alluvial reach referring tothe input of sediment over a sufficiently long time (time interval in the order of months) is equalto the output of sediment. A nonequilibrium state exists under steady flow when the sedimenttransport rate changes with time and space, so that there is no balance between input and outputof sediment. The experiments were performed in an open circuit tilting flume with the bed slope of 0.001-0. 009, the flume length of 30m and flume width of 0. 5m. The boundary condition atupstream and in all experiments, the rate of sedimant supply was zero. The coal or sand was se-lected as the Wed material. The grain diameter of the bed material varied in the range of 0.05-20. 00ram. The equation of nonequilibrium transport of nonuniform bedload is derived. Thegrain distribution of the size distribution of bedload is calculated by modified Gessler’s formula.The grain size distribution of bed material is calculated by CARICHAR mixed layer model. These equations are applied to numerical simulation of armoring of riverbeds. The results ofthe bedload transport rate and the grain size distribution of the bedload at the end of the down-stream in the process of time, as well as the grain size distribution of the bed material in the pro-cess of time and distance are all in close agreement with the measurements. | Lu Yong-jun Zhang Hua-qing, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, P. R. China | 1992 | Journal of Hydrodynamics1992，4，2： | 4 |
| 11 | A RAISED PANEL METHOD BASED ON NURBS FOR FREE-SURFACE POTENTIAL FLOWS WITH FORWARD SPEED显示文摘A raised panel method based on NURBS (Non Uniform Rational B Splines) for free surface flows with forward speed is presented. In this generalized panel method, NURBS are employed to represent the body geometry, disturbed free surface, and to express the unknown source strength distribution, on the body surface and above the free surface. Compared with common higher order panel methods, it has no need of adopting local coordinates. NURBS make the geometry representation of the body shape and the wave pattern more precise. Raised panels above the free surface produce less numerical dispersion error, need less CPU consumption and are helpful and combined with collocation point shifting up stream, can satisfy the radiation condition numerically. By using continuous and discrete Fourier analysis, numerical errors of this method are discussed and a general expression for the errors of numerical damping and dispersion, including the effects of the vertical distance of singularities to the free surface, the order of singularity distribution represented by B splines in panels, and collocation point shifting is derived. | Gao Gao, Ma LingSchool of Transportion, Wuhan University of Technology, Wuhan 430063, China | 2003 | Journal of Hydrodynamics2003，15，2： | 4 |
| 12 | 我国现代有轨电车现状与发展趋势调研报告显示文摘当前,我国已有部分城市的有轨电车项目投入运营。基于调研,围绕我国有轨电车的规划与建设、车辆与供电、智能交通、运营安全管理、交通管理政策法规、检测与验收等方面,总结了国内有轨电车行业的发展现状,分析了有轨电车在我国的功能定位和发展启示。最后,提出了我国有轨电车发展面临的问题、趋势和建议。 | Research Group of Modern Tram (Medium Capacity) Specialized Committee of Shanghai Transportation Industry Association | 2016 | 地下工程与隧道2016，，4： | 4 |
| 13 | Analysis on Residents’ Travel Characteristics and Transport Policies: A Case Study on Tianjin显示文摘The history of city development in China and other countries proves that the residents’ travel demand and characteristics apparently change in both time and space terms along with the process of rapid urbanization and motorization.In recent years, | MA Keping,Engineer,Research Center of Transport,Tianjin Urban Planning & Design Institute,Tianjin,P.R.China.CAO Bohu,Senior Engineer,Research Center of Transport,Tianjin Urban Planning & Design Institute,Tianjin,P.R.China.FAN Xiaoyong,Engineer,Research Center of Transport,Tianjin Urban Planning & Design Institute,Tianjin,P.R.China. | 2008 | China City Planning Review2008，17，1： | 4 |
| 14 | BILEVEL PROGRAMMING MODEL AND SOLUTION METHOD FOR MIXED TRANSPORTATION NETWORK DESIGN PROBLEM显示文摘By handling the travel cost function artfully,the authors formulate the transportationmixed network design problem (MNDP) as a mixed-integer,nonlinear bilevel programming problem,in which the lower-level problem,comparing with that of conventional bilevel DNDP models,is nota side constrained user equilibrium assignment problem,but a standard user equilibrium assignmentproblem.Then,the bilevel programming model for MNDP is reformulated as a continuous version ofbilevel programming problem by the continuation method.By virtue of the optimal-value function,the lower-level assignment problem can be expressed as a nonlinear equality constraint.Therefore,thebilevel programming model for MNDP can be transformed into an equivalent single-level optimizationproblem.By exploring the inherent nature of the MNDP,the optimal-value function for the lower-level equilibrium assignment problem is proved to be continuously differentiable and its functionalvalue and gradient can be obtained efficiently.Thus,a continuously differentiable but still nonconvexoptimization formulation of the MNDP is created,and then a locally convergent algorithm is proposedby applying penalty function method.The inner loop of solving the subproblem is mainly to implementan all-or-nothing assignment.Finally,a small-scale transportation network and a large-scale networkare presented to verify the proposed model and algorithm. | Haozhi ZHANG·Ziyou GAOSchool of Traffic and Transportation,Beijing Jiaotong University,Beijing 100044,China China Urban SustainableTransport Research Centre,China Academy of Transportation Sciences,Beijing 100029,China. | 2009 | Journal of Systems Science & Complexity2009，22，3： | 4 |
| 15 | Features of long-term health monitored strains of a bridge with wavelet analysis显示文摘This paper analyses the five years' monitored strains collected from a long-term health monitoring system installed on a bridge with wavelet transform.In the analysis,the monitored strains are pre-processed,features of the monitored data are summarized briefly.The influences of the base functions on the results of wavelet analysis are studied simultaneously.The results show that the db wavelet is a good mother wavelet function in the analysis,and the order N should be larger than 20,but less than 46 in decomposing the monitored strains of the bridge.According to the strain variation features of concrete bridge,the proper decomposition level is 4 in the wavelet multi-resolution analysis.With the present method,the strains caused by random loads and daily sunlight can be accurately extracted from the monitored strains.The decomposed components of the monitored strains show that the amplitudes of the strains caused by random loads,daily sunlight,and annual temperature effect,are about 5 με,25 με,and 50 με respectively.The structural response under random load is smaller than the other parts. | Zejia Liu,Bin Jiang,Liqun Tang,Yiping Liu,Chunyu Zhang,and Yinghua Li School of Civil Engineering and Transportation,State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，5： | 3 |
| 16 | STUDY OF HYDRODYNAMIC FORCES OF SHIPS IN NARROW WATERWAY显示文摘The collision of ships in narrow waterway may occur for a variety of reasons. The hydrodynamic forces between two ships change the maneuvering characteristics of ships greatly. So based on the boundary element method, this paper proposes a calculation method for hydrodynamic interaction forces between ships under meeting and passing conditions in narrow waterway. The results from this method are compared with the existing results obtained from other theoretical approaches, and they are in good agreement. | Zhang Xie-dong, Wu Xiu-heng School of Transportation, Wuhan University of Technology, Wuhan 430063, China | 2003 | Journal of Hydrodynamics2003，15，4： | 3 |
| 17 | Time-delayed feedback control optimization for quasi linear systems under random excitations显示文摘A strategy for time-delayed feedback controloptimization of quasi linear systems with random excitationis proposed. First, the stochastic averaging method isused to reduce the dimension of the state space and to derivethe stationary response of the system. Secondly, the controllaw is assumed to be velocity feedback control with timedelay and the unknown control gains are determined by theperformance indices. The response of the controlled systemis predicted through solving the Fokker-Plank-Kolmogorovequation associated with the averaged It equation. Finally,numerical examples are used to illustrate the proposed controlmethod, and the numerical results are confirmed byMonte Carlo simulation. | Xueping Li Demin Wei Weiqiu Zhu School of Civil Engineering and Transportation, South China University of Technology, 510640 Guangzhou, China Department of Mechanics, State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, 310027 Hangzhou, China | 2009 | Acta Mechanica Sinica2009，25，3： | 2 |
| 18 | Operating Analysis of the Closed Supply Chain of Green Agricultural Products Based on Logistics Center显示文摘This thesis gives the overview of concept and constitution of the closed supply chain of green agricultural products based on logistics center,and the necessity of regarding logistics center as core enterprise.Meanwhile,it analyzes the function of logistics center of agricultural products,namely functions of exchange,collection,distribution,storage and transportation.It also poses the prerequisites of logistics center.The logistics center of agricultural products must have stable profit expectancy,prominent scale,strong appealing power,capacity of bearing market risk and basic thoughts of supply chain management.The functional design of the closed supply chain of green agricultural products has been discussed in 5 aspects,namely logistics center,production base,providers of means of production,retailer and consumer.The operating thoughts of the closed supply chain of green agricultural products based on logistics center are put forward on the basis of the research of operating objective and service target of supply chain as follows:first,based on local principal agricultural products,the logistics center mainly distributes the massed agricultural products;second,it is necessary to choose appropriate strategic cooperative partners to sign contract;third,the operating procedure of supply chain entails bringing in professional managerial talents of supply chain;finally,the relationships of supply chain should be maintained. | WANG Duo-hong,LI Yu,ZHAO Hong-xia,ZHANG Jiang-quan Traffic transportation department,Southwest Jiaotong University-E’mei,E’mei 614202,China | 2010 | Asian Agricultural Research2010，2，3： | 2 |
| 19 | 西部地区公路地质灾害监测预报技术研究显示文摘'西部地区公路地质灾害监测预报技术研究'项目针对西部地区公路地质灾害危险性区划、滑坡、崩塌与泥石流监测预报及地质灾害安全管理等关键技术问题进行深入系统研究,形成了公路滑坡、崩塌与泥石流监测预报成套技术,建立了公路地质灾害数据标准,构建了'基于GIS的公路地质灾害监测预报信息系统'平台,实现了公路地质灾害监测实时分析处理和动态预报,为地质灾害综合管理提供技术支撑。 | Guizhou transportation academy of planning,reconnaissance and designing | 2009 | 西部交通科技2009，，3： | 2 |
| 20 | LATTICE BGK MODEL FOR THE INCOMPRESSIBLE NAVIER-STOKES EQUATION显示文摘In this paper a Lattice Bhatager-Gross-Krook (LBGK) model to simulate incompressible flow is developed. The basic idea is to explicitly eliminate the compressible effect, due to the density fluctuation in the existing LBGK models. In the proposed incompressible LBGK model, the pressure p instead of the constant mass density ρ 0 is the independent dynamic variable. The incompressible Navier-Stokes equations are exactly derived from this incompressible LBGK model. In order to test the LBGK model, the plane Poiseuille flow driven either by pressure gradient or a fixed velocity profile at entrance as well as the 2-D Womersley flow are simulated. The numerical results are found to be in excellent agreement with theory and the results of previous studies. | Zhang Xiao-jun, Liu Zu-yuan School of Transportation, Wuhan University of Technology, Wuhan 430063, China, | 2003 | Journal of Hydrodynamics2003，15，3： | 2 |
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