bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental Study on Titanium Based Photocatalyst and its Catalytic Oxidation on Flue Gas Mercury
Authors: Shi Xue , Dai Xue Wei , Wu Jiang , Li Xian , Zhang Yi Ran , Cao Yin Xia , Li Can , Yang Jin Ge , Wu Yu , He Hai Ting , He Wen Long , Xie Zheng Ling
Published: December 2012

This paper mainly studied the effects of different iron-doped volume on photo-catalytic oxidation of TiO2 for mercury removal. Through the photocatalytic oxidation system, we evaluated the elemental mercury removal performance of TiO2 with iron-doped mass ratio of 0.5%, 1%, 2% and 3%. While the iron-doped mass ratio were 0.5%, 1%, 2% and 3%, the elemental mercury removal efficiency were 70.83%，52.89%，72.32% and 62.39% respectively, the removal efficiency increased firstly, then declined, and 2% iron-doped was the most appropriate
Study on Master Production Schedule in Manufacturing System for Medium and Small Manufacture Enterprises
Authors: Lu Xiao Hong , Wu Wen Yi , Han Peng Zhuo , Li Guang Jun , Wei Jie
Published: December 2012

According to the existing problems in production planning management mode and management processes of Chinese medium and small manufacture enterprise, referring to the advanced management concept of MRPII/ERP, a master production schedule system which is suitable for management state of Chinese medium and small manufacture enterprise is researched and developed. The operation process, data flow and ER model of the master production schedule system are discussed and researched. Finally, Microsoft vb.net is selected as the development tool of the master production schedule system and Microsoft SQL Server 2000 is used as the database management system, a master production schedule prototype system is designed and implemented.
Research on a Main-Branch Hybrid Flow Shop Scheduling Problem in Production Manufacturing System
Authors: Zhang Xin Min , Zhang Meng Yue
Published: December 2012

A main-branch hybrid Flow shop scheduling problem in production manufacturing system is studied. Under the premise of JIT, targeting of smallest cost, a Flow-Shop production line scheduling model is built in cycle time of buffer. Two stages Quantum Genetic Algorithm (QGA) is proposed. By the results of numerical example, the effective and advantageous of QGA was shown.
Microstructure Morphology Evolution of Single Crystal Copper Rod by Ohno Continuous Casting in Copper Manufacturing System
Authors: Rao Lei , Zhu Lian Bing , Hu Qi Yao
Published: December 2012

Heated-mould continuous casting (Ohno continuous casting, OCC) is a kind of special continuous directional solidification technique in copper manufacturing system. Copper rod solidification process is cooperative controlled by heated mould and water cooler. Single crystal metal rod of any length can be produced by OCC. In this paper, based on continuous nucleation model, microstructure morphology evolution process of single crystal copper rod has been studied by coupled cellular automata method and finite element method. Competitive growth process has been described that tiny equiaxed crystal merged into big columnar crystals towards heat flow direction. Single crystal evolution distance changing rule has been study under different drawing speed and mould temperature by simulation and experiment results. This study provides reference for high quality single crystal copper rod in copper deep manufacturing processing.
Study on Supply-Marketing-Inventory Pattern with Active-Work in Manufacturing System
Authors: Qian Feng , Wang De Lun , Dong Hui Min
Published: December 2012

In order to effectively manage the logistics in the Manufacturing System, the current condition of Supply-Marketing-Inventory pattern, which is the periphery of the production activity in manufacture enterprise, is investigated and analyzed. A new pattern of Supply-Marketing -Inventory is built up emphasized on “Active-work”, and according this, build a Supply-Marketing-Inventory system model fit enterprise use. Based on the active-work logistics management pattern, the applied software (Supply-Marketing-Inventory Management Information System) is designed and programmed. The practice of the Inventory MIS in DHI shows that the approaches of the paper are effective and practicable.
Research on Study on Multi-Objective Location of Distribution Center with Product-Manufacturing Properties Based on Covering
Authors: Sun Lin , Wu Xiang Lin , Liu Yue , Liu Yong Li
Published: December 2012

Distribution center is an important part of modern logistics system. In the process of designing distribution center, manufacturing expense can be greatly reduced by selecting appropriate location of distribution center. In this paper, the covering method was used twice to choose the distribution center and minimize the total cost. At last, a case was given to test the model.
Processing Quality Forecast and Diagnosis for Gear-Box Shell Production Line in Manufacturing System
Authors: Ma Yan Hua , Kong Fan Sen , Liu Zhong Chang , Zhu Xin Yu , Pan Yuan Chao
Published: December 2012

By analysis of time series, this paper analyzes the machining quality of the gear-box shell in manufacturing system by exponential smoothing model and the gray prediction model, and then predicts the trend of the future product quality. By mining the association rules of the machining processes of the gearbox shell and analyzing the impact on product quality in different procedures, we get the beneficial factors on improving the machining quality of the gear-box shell; At the same time, by analyzing different factors of the same procedures, we realize the diagnosis of procedures quality by diagnosing the beneficial factors on improving the product quality.
Dynamic Effects of Quality Improvement on Mobile Phone Manufacturing System
Authors: Fang Zheng , Yang Yang , Deng Fu Min
Published: December 2012

Based on a real-world dataset, we developed multivariate time-series model to compare dynamic impacts of quality improvement, apology, compensation and communication on customer satisfaction, after a serious quality failure of mobile phone manufacturing system. The empirical results innovatively reveals that apology-based recovery efforts are the least effective in salvaging customer satisfaction of manufacturing system, with the shortest decay and lowest buildup intensity. In contrast, quality improvement is the most effective, with the highest buildup and longest decay but slowest buildup toward the peak impact point. Compensation has a moderate and stable impact over time. Communications’ impact on customer satisfaction of manufacturing system builds up the quickest, though with mild endurance and magnitude. These findings extend quality improvement literatures in the context of mobile phone manufacturing system
Study on the Ground-Source Heat Pump with Properties of Thermal Dynamics Used in Heating and Air Conditioning by Economic Analysis
Authors: Yuan Zhi Yang
Published: December 2012

The ground-source heat pump is a system which takes the shallow surface soil energy as the source of heating and cooling. The temperature of ground source is relatively stable throughout the year, which makes the ground-source heat pump have the higher operation efficiency compared with the traditional air-conditioning system.Study on the ground-source heat pump with properties of thermal dynamics used in heating and air comditioning by ecomomic analysis is still an important issue. In this paper, the ground-source heat pump and the traditional heating and air-conditioning system have been compared in terms of their economic competitiveness. Firstly, it is required to compare the ground-source heat pump with the traditional heating method in terms of the heating economy. Afterwards, it is necessary to compare the ground-source heat pump with the conventional electric refrigeration in terms of the air-conditioning economy. Finally, it is needed to conduct the comprehensive and economic analysis for the ground-source heat pump and the boilers and air conditioning, which includes four programs.
The Development of Forming Analysis Technology for Material Selection Based on Different Manufacturing in REF SILL OTR-R/L Auto-Body Panel Stamping
Authors: Jung Dong Won , Kim Dong Hong , Kim Bong Chun
Published: December 2012

Using a new method in this study, we were able to solve the problem with the existing method, which was panel manufacturing after selecting the most appropriate material from the possible manufacturing material. The possibility of application in the practical industry site and validity were verified. This study involves analyzing the stamping process problems by using AutoForm commercial software, which used the static-implicit method. According to this study, the results of the simulation will provide engineers good information to access the die design for optimization.
Research on Design Values of Fragility with Mechanics Properties
Authors: Shu Rui , Zhang Xiao Long
Published: December 2012

In this paper, on the basis of discussing the basic concept of design value of frailty, experiment data were analyzed by way of distribution fitting, and -3δ basis, A basis and B basis of fragility with mechanics properties were also calculated by means of normal distribution and logarithmic normal distribution so that reliability design concerned with Mechanics Properties can be performed conveniently.
Constitutive Analysis of Ni-Base Superalloy Hastelloy X under Hot Compression Based on Thermodynamics
Authors: Wu Horng Yu , Liu Hsu Cheng , Zhu Feng Jun , Chiu Chui Hung
Published: December 2012

Hot deformation characteristics of Hastelloy X Ni-base superalloy were investigated at elevated temperatures. Hot compressive tests were carried out in the temperature and strain rate ranges from 900 to 1150 °C and 0.001 to 1 s–1, respectively. The constitutive equation relating flow stress, temperature, and strain rate was obtained based on the peak stresses. The flow behavior showed that the softening mechanisms were related to the dynamic recovery (DRV) and dynamic recrystallization (DRX). The flow stress of Hastelloy X was fitted well by the constitutive equation of the hyperbolic sine function. The constitutive analysis suggested that the hot deformation mechanism of the Hastelloy X was dislocation creep.
Nonlinear Dynamic Buckling for Truncated Sandwich Shallow Conical Shell Structure Subjected to Pulse Impact
Authors: Tang Ming Qiao , Xu Jia Chu
Published: December 2012

Nonlinear dynamic buckling for sandwich shallow conical shell structure under uniform triangular pulse is investigated. Based on the Reissner’s assumption and Hamiton’s principle, the nonlinear dynamic governing equation of sandwich shallow spherical shells is derived. The corresponding nonlinear dynamic response equations are obtained by Galerkin method and solved by Runge-Kutta method. Budiansky-Roth criterion expressed by displacements of rigid center is employed to determine the critical impact bucking load. The effects of geometric parameters and physical parameters on impact buckling are discussed.
Evaluation of Urban Regeneration Project Plans with an Integrated Model Based on Analytic Network Process
Authors: Liao Yu Juan , Ye Kun Hui , Fu Hong Yuan , Ma Lin
Published: December 2012

An integrated model based on ANP method which contains three major criteria, thirteen sub-criteria and thirty six factors was developed to evaluate urban regeneration project plans. To improve the traditional ANP method, a non-linear Programming equation which can be solved by the PS method was used to measure the inconsistency as well as to calculate the priorities in the pair-wise comparison stage of ANP. In addition, a DEMATEL method was employed to analyze the interdependencies of criteria/factors comprehensively. Five alternative plans of an urban regeneration project were adopted to test the effectiveness of the developed model. It was found the integrated model was feasible and effective to solve the problem of evaluation of the urban regeneration project plans.
Study of Gray Correlation Degree Method in Environmental Warning
Authors: Li Shu Fang , Dai Wei
Published: December 2012

A simple and reasonable, practical, strong quantitative evaluation method- entropy method is proposed for China's ecological environment to provide reference for the evaluation. However, in practical work, the factors, which have a great impact on eco-environment, are many but also have greater ambiguity and uncertainty. Just having simple value of estimate call not guides our work. So in this paper all kinds of affecting factors which environmental warning system are analyzed by gray correlation degree method and the relatively important arrange. It puts forward valuable suggestions for the effective using of environmental warning system in practical works.
Research Progress on Biological Removal of Arsenic Technology
Authors: Kang Xing Sheng , Su Qiang , Shen Jun , Li Yi
Published: December 2012

Arsenic is a toxic element, which is harmful to environment and human health. How to treat arsenic polluted water has become a global environmental concern. Current biological arsenic removal technology was researched base on plants, microorganisms and so on. Biological removal of arsenic technology has high efficiency, low cost, and low secondary pollution, which will be the most promising technology.
Features of Water for Ecological Demand in Arid Area in the Northwest China
Authors: Wang Rang Hui
Published: December 2012

Along with the implementing of eco-environment protection and socioeconomic development, water resource is a serious problem in Northwest China.Moreover,the socioeconomic development has been constrained.Meanwhile,a kind of ecosystems security has been threatened in the arid area.Based on the strategy of water source sustainable development, the principle and method of water for ecological demand (WED) are urgent in need of resolution. The actual features can be understand by case study in the artificial forest ecosystem and desert riparian ecosystem.With the guidance of eco-hydrology, WED features is obviously in arid area. The quality and quantity of WED have a larger variable range. Meanwhile, water use style is flexible. WED is under the control of water cycling and transfer efficiency of SPAC, which has close relation with vegetation growth.WED Estimation focused on some parameters and modeling. The ideas in WED have significances for improving eco-hydrology and water resource management and ecological practice as well as sustainable development of ecological industry in arid area.
Land Reclamation Suitability Evaluation Based on the Limit Method
Authors: Shi Dai
Published: December 2012

Land Reclamation Suitability Evaluation is the basis to properly implement land reclamation, and to develop a practical land reclamation project. In this study, we've given full account to the drawbacks of the Limit Method, and precisely divided the evaluation units, to make Limit Method evaluation more accurate. We've put this method in practice, and obtained more scientific evaluation results.
Highway Through the Wetlands Landscape AVC Evaluation
Authors: Yin Hua , Li Xiao Feng
Published: December 2012

Based on the AVC theory, the highway landscape AVC evaluate frame on crossing Wetland has been found. On this foundation, we have established highway landscape Indicator set with crossing the Wetland .According to the evaluate Indicator set union concrete example on AHP which establishes carries on the fuzzy comprehensive judgment. Thereby the evaluate Indicator and the evaluate method have been proved having preferably practicability.
Safe Departure Interval of Bullet Trains: Based on Block Section
Authors: Xie Pei Xi , Yang Wei
Published: December 2012

One of the important ways to improve the transport capacity of China is to reduce time of departure interval, which must be based on the premise that safety is guaranteed. In this paper, based on block section, a safe departure interval (SDI) model is constructed, which focus on technology and management factors in the train operation. Using SDI model, safe departure interval time of Shanghai-Hangzhou railway line is calculated, and sensitivity of some factors are analyzed. The rustles indicate that there is plenty of room for decrease time of departure interval safely.
A Study of Exploring the Second Channel for Yangshan Deep-Sea Port
Authors: Li Xin Yu , Hu Hao , Li Chao Yang
Published: December 2012

Yangshan Port, one of the most essential hardware of Shanghai International Shipping Centre, accounts for more than one-third of the total throughput of Shanghai Port. However, as ocean transport develops rapidly, Donghai Bridge, the only channel from the port to economic hinterland, indicates high risks of unavailability and insecurity. The aim of this paper is to investigate the solution for solving this disputed contradiction by exploring the second channel. This paper analyzes the real situation about Yangshan Port and the necessity for the second channel in security and transportation structure aspect. Furthermore, this paper also studies and compares three alternatives through technical and economic assessment and Cost-Effectiveness Analysis. The results show that the highway-railway dual-purpose tunnel is the most feasible and effective solution, which provides some advice and references to the continuous development and improvement of Yangshan Port.
The Uncertainty Study of Waterway Freight Volume Forecast Model
Authors: Xie Hai Yan , Zhang Xin Zhi , Zhao De Peng
Published: December 2012

In this paper, we use the waterway freight volume and the actual statistical data of completed amount of fixed investment to model the prediction of waterway freight volume, to introduce tolerance error value into the collected data, and to evaluate the uncertainty of the model by using rough neural network. Finally, by comparatively analyzing the deviation of the predicted data and the ideal data, we proved the feasibility of rough neural network in the uncertainty analysis of waterway freight volume forecast model.
Motivation, Problems and Countermeasures Research on the Rapid Development Highways of Chongqing
Authors: Cao Xiao Lin , Jiao Liu Dan
Published: December 2012

Through analyzing the development of the present situation and planning of highways of Chongqing, this paper indicated that the becoming of the country's urban and rural comprehensive reform pilot area, the urban transportation planning, the urban logistics planning, the industry development planning and the conformation of economic circle of Chengdu-Chongqing are the main driving force for Chongqing to develop its highways. This paper also proposed some countermeasures and suggestions of large-scale construction of highways on construction funds, road plan,road maintenance as well as demolition resettlement for Chongqing.
Study on the Transportation - Economy Coordinated Development Based on Entropy Weight
Authors: Zhang Hua Qin
Published: December 2012

Investment in transportation infrastructure is bound to promote the economic development . Coordinated development of transport and economy is the best state. This paper discusses the principle of coordinated development between traffic and economy, build evaluation index system of transport and economy development, use entropy weight method to calculate the composite score, draw traffic - economy coordination degree model. Then set Huanggang City of Hubei province example to illustrate the usefulness of the model.
Application Research on RFID Technology in Container Transportation Management
Authors: Geng Yu , Li Ping
Published: December 2012

The low level of container transportation management has affected the modernization of the logistics management information system seriously. The current situation of the container management information system in China is analyzed firstly in this paper. Then the basic RFID technology is introduced. At last the RFID application status and problems in the container transportation management are analyzed. In conclusion, the authors put forward some prospects to speed up the RFID application in container transportation management information system.
A High Performance Algorithm of Vehicle Plate Location and Recognition in Intelligent Transportation
Authors: Liu Wan Jun , Zhang Zhan , Jiang Wen Tao , Yuan Heng
Published: December 2012

For the problem of slow plate location, the low accuracy of information identifying in the intelligent transportation system, a new algorithm of vehicle plate location and character recognition with high performance is presented in this paper. Firstly, the vehicle plate image is pre-processed, and then search for the edge of rapidly protruding rectangular, collect the similar trend of bilateral curve in the search area of rectangular, then selected the area with outstanding bilateral similar characteristics, so locate the true license plate which contains characters. Finally, match with the bit weight value of the multi-template by the improving neural network model, and identify the characters. The proposed algorithm focuses on the rectangular features of license plates and the important features of parallel bilateral with character, to the use of algorithm with the new parallel ectopic template removed improved the speed of vehicle plate location and the accuracy of character recognition.
Urban and Rural Logistics and Distribution System Based on Supply and Marketing Cooperatives
Authors: Huang Xiao Ling , Jia Hao Xiang , Roiseux Racine Philippe
Published: December 2012

China is a vast country with 800 million farmers. An amelioration of their general living condition is a pressing issue. In China, it is not uncommon to encounter lower grain price due to the delays in their transportation. There are many reasons for the low living standards in rural areas, the obsolete rural logistic system, especially regarding agricultural products, is obviously one of them. Recently, to improve logistics development conditions of China's agricultural products, every levels of government increased rural logistics investment in construction projects; however, there are still delay issues from the productions centers to the urban areas. This paper looks the breaks in the logistics chain by studying the current distribution style, and proposes logistics system based on supply and marketing cooperatives in order to improve the existing system.
Logistics Reorganization of Supermarket Chains Based on Agriculture Super Docking
Authors: Ji Shou Wen , Wang Kan , Yan Kui
Published: December 2012

Aiming at the demand of logistics reorganization in agriculture super docking, from the point of view of the enterprise itself, this paper makes a detailed analysis about agriculture super docking. We wish the mode has a certain effect.
Key Factors Analysis of Port Logistics Development Based on Principal Component Analysis
Authors: Ji Shou Wen , Zhao Ling Shan
Published: December 2012

The factors affecting the modern port logistics development have become more numerous and complex, which is hard to verify the key factors. Principal component analysis which is short for PCA is used to analyze these factors, aiming at finding out the key factors of them. Lianyungang Port was chosen for case study, and nine factors were selected to analyze. By applying PCA, combined with expert scoring and SPSS software, the cumulative contribution rate could be calculated and the principal component was determined. At last the infrastructure factor, collecting and distributing condition factor, information factor and policy factor are found out as key factors. It provides a basis for Lianyungang Port’s planning and policy-making.
Dynamic Analysis of Store-to-Store Delivery Service through Fuzzy Cognitive Map
Authors: Chung Cheng Chi , Huang Yu Kai
Published: December 2012

The Internet enables many companies to use the Web to allow customers to configure specific order options tailored to the tastes and preferences of the customers. Hence, logistics management exposes the formerly latent logistics system in the economic activities and reveals the inner connections between parts of logistics activities. Store-to-store delivery service is one of the most important delivery systems in Taiwan. The authors establish an evaluation model to analyze and describe the store-to-store delivery using sensitivity model and fuzzy cognitive map. The results obtained can be used to help the manager formulate strategies and reduce risks as well.
Estimating of the Distribution Rate of Passenger Flow on Shenyang-Dalian Railway after Operation of Passenger Dedicated Line
Authors: Wang Chao , Han Bao Ming , Lu Fang , Li Hua
Published: December 2012

The methods in common use for estimating the distribution rate of passenger flow are distribution rate curve method and the function model method. Logit model method is adopted by comparison and selection. The solutions of eigenfunction in traditional model are improved. The utility function of transport product is applied instead of the traditionally used eigenfunction in the Logit model. The distribution rate of passenger transport demand for railway around operation of the passenger dedicated line in Shenyang-Dalian passenger transport market is 55.73% and 69.21% respectively, which is obtained by using improved Logit model. After the operation of the passenger dedicated line, the balance of supply and demand of railway transport product between Shenyang and Dalian can be solved combined with the investigation results of passenger flow.
The Application of Road Safety Audit to Expressway in China
Authors: Wu Hong Bo
Published: December 2012

A brief introduction to originality and development of road safety audit in other countries is firstly provided in the paper. Then, the current practice of road safety audit on expressways in China is described. Also, the fators affecting the impelmentation of road safety audit are analyzed, and suggestions for promoting the application of road safety audit on expressways are proposed. Lastly, the development tendency of road safety audit on expressways is discussed and a case study based on expert experience is given.
Heterogeneous Drivers Car-Following Model and Stability Analysis
Authors: Pan Jing Shan , Zhang Li Dong
Published: December 2012

Optimal Velocity Model (OVM) is one of the typical car-following traffic flow models. The driver’s sensitivity factor in OVM is always constant in the past study, which does not fully comply with practical traffic flow characteristics. To gain a more actual and objective model, we propose a kind of heterogeneous drivers car-following optimal velocity model, i.e. HDOVM. In this model, the constant driver’s parameter is substituted with driver type function, and every car in the queue has a corresponding value. After stability analysis with Laplace transform state space method, we make many types cars in the traffic queue numerical simulation to prove our supposition , the simulation results after many times show that the HDOVM model is more practical than traditional ones. Considering the diversity of traffic flow composition should be one of the major factors to find out the reason of traffic jam.
Simulation and Analysis of Highway Traffic Accident Based on VISSIM
Authors: Shi Jun Qing , Cheng Lin
Published: December 2012

When the highway traffic accident happened, the capacity will decrease, and if the upstream traffic volume was more than the remaining capacity, the traffic jam will happen. The simulation software VISSIM was used to simulate and analyze the highway traffic accident under different number of blocked lane, upstream traffic volume and traffic accident duration. Simulation result shows that, the capacity has something to do with the number of blocked lane, but has nothing to do with the location of traffic accident. The time of biggest delay has something to do with the number of blocked lane and traffic accident duration, but has nothing to do with the upstream traffic volume. The capacity has nothing to do with traffic accident duration. The longer traffic accident duration, the more delay. And the queue length increases when the number of blocked lane, upstream traffic volume and traffic accident duration increase.
Promotion and Abandonment on the Traditional Local Residence in Northern Jiangsu during the New Rural Construction
Authors: Gong Xiao Fang , Li Yuan
Published: December 2012

New rural construction is practiced across the country and northern Jiangsu is one of them. In accordance with the overview of the current new rural development, the problem existing in the new rural construction is put forward, namely, the phenomenon that the current village landscape designs are similar lies in large amounts of new rural areas. New rural construction in northern Jiangsu can draw lessons from this problem. Starting from features of the local residence in northern Jiangsu to the exploration for the cultural value and significance of the local residence, some suggestions are provided for the protection of the local residence during the new rural construction in northern Jiangsu.
Service Area Delimitation of Regional Highway Passenger Transport Hub Using Random-Utility-Based Weighted Voronoi Diagram
Authors: Du Xiao Chuan , Guo Xiu Cheng , Zhang Xiao Hui , Ma Qiao Ying
Published: December 2012

This study introduces random utility theory to ordinary weighted Voronoi diagram and describes its application in delimiting the services area of a regional highway passenger transport hub. The Euclidean distance was replaced by a utility function of hub’s capacity factor, travel distance, travel time, and monetary travel cost from passenger’s initial origin to the alternative hubs. The service area was delimited based on utility maximization principle and a nested-logit model for transport hub and travel mode. The application shows that the service area of a hub is not consistent with its administrative boundary. It proves Voronoi diagram is a reasonable and practical tool for detecting the service boundary of a hub by offering an integrated angle to recognize the interacting relationship between hub location, transport network, and passenger’s choice behaviors.
Through the Analysis of the First Stage Project of Shenyang Subway Line One, Summarizing Effective Measures of Reducing Cost of Subway
Authors: Li Li Xin , Wang Pan
Published: December 2012

From analyzing project cost of the first-stage project of Shenyang subway line one,there are several important factors affecting the cost of Shenyang subway line one. By the analyzing cost of land pulling down,design fees,power supply system,vehicle,shield machine and laying mode and comparing with cost of other urban subway. Finally we summed up the effective measures to reduce the cost of subway .
The Optimal Designs in Time and Space of Signalized Intersection under Traffic Tide Phenomenon
Authors: Wang Peng , Wu Yuan Yuan , Wang Xi Duo , Chen Jun
Published: December 2012

Traffic congestion caused by traffic tide phenomenon has become increasingly severe, appropriate allocation of time and space in signalized intersection is the key to such problem. Based on the optimal adjustments of signalized intersection, this paper introduces the coefficient of unbalanced distribution of entrance and puts forward four schemes of setting methods of signalized intersection, which is combined with the setting of symmetry phase, split phase, and signalized intersection entrance short lanes. This paper also compares the average intersection delays of each scheme to find out the advisable one under traffic tide phenomenon.
Model of Urban Road Congestion Pricing Based on Game Theory
Authors: Ding Li Li , Wang Zheng Wei , Li Lu Yan
Published: December 2012

This paper proposes a game-based model to conduct the issue of road congestion pricing. The ride comfort of travel modes, e.g., cars or buses, is introduced into the travel cost function of the traditional bottleneck model. Furthermore, based on different travel cost functions of various travel modes, the Nash equilibriums are achieved among the government and various travelers. The results can be employed to describe internality and externality of traffic system respectively. Finally, numerical examples are presented. The findings of our work indicate a relationship between the government’s goal and the charge rate and that the emergence of ride comfort obviously is a key determinant of travelers’ behavior.
Method to Determine Pedestrians Level of Service for Unsignalized Intersections
Authors: Bian Yang , Jian Lu , Zhao Lin
Published: December 2012

This paper aims at developing a Level of Service (LOS) model for unsignalized intersection crosswalks for pedestrians from the perspective of the pedestrian’s perception of comfort and safety in unsignalized intersection environment. Firstly, the potential primary factors influencing pedestrian LOS at crosswalk were summarized from three respects: traffic conflicts, crossing facilities and delay. Secondly, data for the model were collected, including 459 participants’ real-time sense of comfort and safety when they crossing the 11 selected intersection crosswalks and the design and operational characteristics of the selected intersections. The selected crosswalks were typical of those prevalent in the urban areas of China, and the participants of questionnaire survey covered a broad cross section of Chinese population of pedestrians. Based on the survey data, Pearson Correlation analysis and step-wise regression analysis were carried out to develop pedestrian LOS model for unsignalized intersections. A reliable, statistically calibrated pedestrian LOS model for unsignalized intersections was developed, suitable for application in the vast majority of Chinese urban areas. The study revealed that the factors significantly influencing pedestrian LOS at unsignalized intersections included: left turning bicycles from side streets, through bicycles from side streets, right turning bicycles from side streets, left turning bicycles approaching from the street parallel to the crosswalk, through bicycles from the approach opposite to the crosswalk, right turning bicycles from the street parallel to the crosswalk, through bicycles from the approach opposite to the crosswalk and the presence of the median.
Research on Small Towns’ Settlements Sustainable Development of Loess Hill and Gully Area in Middle Inner Mongolia
Authors: Sun Li Ping , Wang Juan
Published: December 2012

After affirming the regional features and value of small towns’ settlements of loess hill and gully area in Middle Inner Mongolia, some problems are pointed out in the construction and development, and some constructive suggestions and ideas are put forward about the sustainable development model.
Multi-Agent Simulation of Emergency Evacuation on the Sidewalk
Authors: Chen Peng , Zhu Shun Ying , Xu Liang Jie , Ma Xiao Feng , Du Zhi Gang
Published: December 2012

Transportation evacuation study has become a research focus in recent years. This paper deals with emergency evacuation on the sidewalk using agent-based simulation. The current study develops a traffic simulator within NetLogo, an agent-based environment. Two sub-models are proposed including facility sub-model to describe global path planning of evacuee and evacuee sub-model to describe the evacuee behavior. We conducted simulations to investigate the effect of generation position of evacuees and the proportion of choosing bus on evacuation through a case study. Simulation results indicate that the proposed model can well address the interaction among evacuees with different evacuation modes, and if evacuees choosing bus evacuate near bus station and evacuees choosing walk evacuate away from bus station, then average walking time of evacuees and maximum density in statistical area are relatively small.
A Comprehensive Analysis and Solution for Traction Motor Speed Measurement in High Speed Train
Authors: Ren Jin Qi , Li Yao Hua , Ge Qiong Xuan , Ma Xun , Zhao Lu
Published: December 2012

In high speed train, to obtain precise speed is important to high performance control, though the transducers used in the train are usually low resolution. The speed measurement was analyzed both on precision and update rate according to the control requirement. A comprehensive measure and calculation solution for traction motor speed measurement is presented. Measure clock period is adjusted according to motor’s different speed range and can obtain good measurement precision both in low and high speed range. The speed update rate can also be guaranteed. The proposed method is implemented and validated by hardware in loop simulation system.
Research and Design of Network System for LIM Rail Transit Vehicle
Authors: Cheng Ning Zi , Li Yao Hua , Ge Qiong Xuan , Zhang Rui Hua , Wang Ke
Published: December 2012

The new linear induction motor (LIM) driven urban rail transit system is favored for more rapidly and reliability, cost-effective and environmental friendly. As the core of the LIM vehicle, network system is proposed in this paper. The scheme of network system is given by using Beckhoff programmable logical controller and its sub-modules, and CANopen protocol is applied in network communication. The performance of the network system is demonstrated by the experiment results. The research and design can be a useful guidance to engineering application for future LIM urban rail transit construction in China.
New Online Detection Method of State of Charge of Car Batteries
Authors: Bei Li , Di Zhang , Du Lu Lu
Published: December 2012

By theoretical analysis and experiment, this article studied the rebound voltage of lead-acid battery when off-lined. By considering elements as discharge rate, depth of discharge, and environment temperature and so on, we experimented and found the relationship between the rebound voltage and the state of charge (SOC) of battery, which provided reliable basis to estimate the SOC of battery by rebound voltage.
Further Development of Exterior Design in Rail Transport Vehicle by Using New Materials
Authors: Huang Tao , Yang Hua
Published: December 2012

The limitations of the original coating display are discussed. And new materials and new possibilities of the rail vehicle performance are analyzed by using the new materials,3M glue and LED for rail vehicle display. In the end, the development trend and possibilities of mordent rail vehicle appearance are discussed with the combination of the massage conveyed from these cases and product characteristics at the information age.
Concept Model and Evaluation System Research on Life City
Authors: Wang Qing Chun , Gao Yun Li
Published: December 2012

City is fragility in the face of huge disasters. Life city was put forword and it’s main characteristic was oriented by people’s lives. The concept model of life city is proposed including safety system, ecological system and execute system. The safety system is the core content of city development. It is discussed how to evaluate the life city and evaluation principles are determined. The evaluation system of life city is established and the evaluation indexs are given by questionaire research method.
Emission Characteristics of Ethanol Blending Fuels from a Laboratory Gasoline Engine
Authors: Wu Ting Nien , Chang Chih Ping , Wu Tser Son , Shen Yun Hwei
Published: December 2012

In Taiwan, 3% ethanol (E3) blending fuel was introduced to the market to lessen the pressure of energy deficit and carbon reduction from global warming. This study is aimed at discovering the environmental impacts of exhaust emissions imposed by ethanol blending fuels. The tested fuels are 0%, 5%, 10%, 15% and 20% of ethanol blending, and engine testing set rotation speeds at 1500, 2500 and 3500 rpm to simulate slow, normal and fast speeds of vehicle driving. Gaseous emissions from engine exhaust were collected to determine the concentrations of CO, NOx, HC, BTEX, formaldehyde and acetaldehyde. Ethanol blending fuels were found able to reduce the emission of regulated air pollutants (CO, NOx and HC) and containing toxic compounds (BTEX) more or less. However, formaldehyde and acetaldehyde emissions were greatly enhanced due to ethanol combustion in the engine. With the use of ethanol blending fuels, the environmental impact on the release of formaldehyde should be aware and carefully controlled.
Research and Design of Electric Vehicle Operation Management System
Authors: Liu Chang , Li Bin , Chen Qi Chu , Lin Jing Yi
Published: December 2012

Obtained requirements by analysis of the business functions of the electric vehicle operations management to form four types of applications, and then design the physical architecture and logical architecture of electric vehicle operations management system(EVOMS), adopted the three level management system, fully construct operation monitoring system of support electric vehicle smart charging and battery swapping service network.
Assessing Urban Sustainable Development in Isfahan
Authors: Karimian Hamed , Li Qi , Chen Huan Fa
Published: December 2012

Urbanization is happening in the huge scale. Beside many advantages of urbanization such as economic and social growth, but at the same time, urbanization brings many problems like air and noise pollution. Urban sustainability aims to make balance between economic growths, environmental issues and social and welfare condition of a city to meet the present needs without jeopardizing the resources and future generation’s opportunity. In order to measure sustainable development progress of an area the role of indicator system is undeniable. In this pre-research work the sustainable development of the Isfahan city in Iran was studied based on 28 indicators in Economic growth, Environmental protection and social and welfare. Moreover the Improved Permutation Polygon Synthetic Indicator Method (IFPPSI) was used to synthesize the value of indicators and geometric illustrate of different indicators. The result showed that the synthetic value of indicators to measure sustainable development of Isfahan city is 0.5 which indicates moderate level of sustainability.
Modal Choice of Recreational Tourists under Regional Transportation Integration: A Case Study of Pearl River Delta
Authors: Huang Jia Ling , Li Jun , Lai Xin Jun , Xu Hong Gang
Published: December 2012

Both revealed and stated preference survey were carried out to investigate public transportation modes choice of recreational tourists in Pearl River Delta which has highly developed transit network. It is found that travel time, number of transfers, fare and comfortableness are the four major factors to affect the modal choice. The multinomial logit model is built to describe the choice behaviors; and the parameters are estimated by the maximum likelihood method. Sensitivity analysis are performed to find the key factors that should be improved in the transportation integration. Analysis indicates that most of recreationists prefer to a fast and comfortable transportation mode, and finally suggestions to improve recreational transportation services are proposed.
The Chrome Thin Coating Characteristics Using Ultrasonic Testing
Authors: Wang Xing Guo
Published: December 2012

According to the different thickness of the thin coatings, the echo signal of ultrasonic testing was extracted. The sound velocity in the coating medium was obtained by solving the mathematical model for transfer function and the time delay spectrometry method, and the coating thickness was calculated, the comparison error of the calculated thickness and the actual thickness, combined with the actual thickness of the coating. The results showed that, two kinds of testing methods are able to detect thin coating thickness.
Research Progress on Radiation Shielding Concrete
Authors: Yang Jing , Chen Zhen Fu , Gan Yuan Chu , Tao Qiu Wang
Published: December 2012

Radiation shielding concrete is widely used in nuclear power plants, accelerators, hospitals, etc. With the development of nuclear industry technology, research on radiation shielding material properties is of great importance. Research on properties of radiation shielding concrete with different aggregates or admixtures and the effect of high temperature on the performance of shielding concrete are introduced. Along with the nuclear waste increase, shielding concrete durability and nuclear waste disposal are getting paramount.
Influence of Fly Ash on Alkalinity of Pore Solution and Microstructure Characteristics of Hardened Cement Pastes
Authors: Yan Jian Jun , Li Xiang , Yang Hua Quan
Published: December 2012

Influence of fly ash on alkalinity of pore solution and microstructure characteristics of hardened cement pastes were investigated by means of ex-situ leaching (ESL), MIP and SEM. The results reveal that the decline of alkalinity of pore solution is not endless, even though the contents of fly ash in fly ash-cement(FC) pastes is very high(65%).The incorporation of fly ash in proper ratios could increase the ratio of harmless pores and improve the microstructure of the FC pastes. Ca(OH)2 was not consumed heavily or exhausted when cementitious material was hydrated due to the low reaction degree of fly ash.
The High Activity of Fly Ash Used in Lime - Fly Ash
Authors: Chen Hua Liang , Wang Da Wei
Published: December 2012

Doped fly ash with lime as a binder, can be used to stabilize the crushed stone, sand and gravel, as well as other types of aggregate formation of two gray gravel, two gray gravel and lime soil or other structure used as a road pavement base or sub-base, in order to to verify the effect of the high activity of fly ash in the actual project, taking into account two gray macadam base and cement fly ash macadam base for semi-rigid base type commonly used in the early construction of the highway in Guangxi, the ash proportion indoor test range, and ultimately determine the best ratio.
Traditional Building Materials for Innovative Envelope
Authors: Lombardo Grazia
Published: December 2012

The present paper is part of a research that is developed within the sustainable building design through the revisiting of the traditional construction materials. The results obtained show that the natural stone, enhanced by technological innovations, are often capable of providing excellent performance. Based on the tests, it was possible to verify and validate the hypothesis that the proposed new system of external vertical opaque enclosure consisting in a panel in dry-assembled and pre-compressed blocks of natural stone through reinforcing steel, has good performances when used both in the case of new design in the case of recovery of modern buildings, when the intervention is being addressed within of an overall building improvement regarding the security, sustainability, functionality and image. This paper reports the first results obtained by the study of the feasibility of the envelope being tested, through the definition of all the details of links with the existing building structure.
Study on the Deterioration Properties of Corroded Steel Based on Weibull Distribution
Authors: Lin Ming Qiang , Xu Shan Hua , Niu Di Tao
Published: December 2012

The change of steel mechanical properties is because of steel corrosion seriously. An important factor of evaluating the performance of active steel structure is the degradation of steel mechanics performance. Corroded steel mechanics performance degradation accords with four parameters Weibull distribution through analysis the rapid steel corrosion experiment data. The each Weibull distribution parameters of the degradation of the steel corrosion rate, yield strength and ultimate strength are solved through Matlab programming. Weibull distribution simulation results and experimental data agree well. These models can predict the degradation of steel mechanics performance and can help people to evaluate the corrosion steel structure bearing performance to reinforce the steel structure.