bluuebunny/crossref_metadata_2025 huggingface dataset:
Modified Flocking Control Algorithm Avoiding Obstacles with Virtual Leader
Authors: Peng Huan Xin , Liu Bin , Yin Jian Guo
Published: December 2013

In the presence of obstacles, the existing flocking control algorithms with virtual leader dont always pass through the obstacles smoothly, especially for wall obstacles. In the paper, a modified flocking control algorithm with virtual leader is proposed, by analysis and simulation, the results show the modified flocking control algorithm can pass through the obstacles smoothly, including the wall obstacles.
Automatic Detection and Control System of Sewage Re-Flooding in Complicated Small-Split Oilfield
Authors: Wang Shu Yi , Song Li Mei , Geng Yu Guang , Liu Zhi Hu , Li Zhi Xin
Published: December 2013

This passage mainly introduces about the design of liquid level and boundary measuring control at sewage re-flooding craft in small split oil field. In order to achieve automatically cutting flooding and re-flooding in the procedure in small split oil-field, the scheme is to test liquid level and boundary by using high performance to price ratio new double level gauge, to utilize electric valve instead of mechanical valve and to choose PLC to control system logic. Eventually, it will reduce the labor intensity.
The Vibration Analysis of Pressure Pipelines in Model of Adding Water Mass
Authors: He Wen She , Chang Shuang Mei
Published: December 2013

According to the safety problems of vibration in high-lift pumping station pressure pipeline, Proposed use the approach of additional water mass, It has established the numerical model of pumping station pressure pipeline based on fluid-structure interaction, To identify the different working conditions modal parameters of Jingtai irrigated area’s pressure pipeline in the stage 2#pump station and the deformation of displacement. To analyse the pressure pipelines of vibration. From the result of numerical simulation：Pressure pipeline is the most easy to stimulate the vibration at the inlet pipe and outlet pipe, in no.4 machine, the vibration amplitude of the High order modal mode of the vibration is bigger than low-order modal vibration mode. And increased along with the order, the outlet pipe which not easy to vibrate is gradually produce vibration deformation. But whether the machine feed line 8 open or not to the whole impact of pipeline vibration is not large. the results of numerical simulation analysis of finite element and the results measured by experiment are basically identical. So the quality model method of the additional water is simple in calculation, and the result is reliable, It has a certain advantage in the pressure pipe of pumping station of fluid-solid coupling simulation applications.
Research for the Equilibrium and Disequilibrium Unified Model of Traffic System Supply and Demand
Authors: Wei Zheng Mao , Guo Rui Xue , Zhang Yi , Li Xi Lu , Li Cheng Bing
Published: December 2013

This paper analyzes the supply model, demand model, and the equilibrium and disequilibrium unified model of traffic supply and demand. And use the regression model focuses to analyze the function of supply and their influence factor, the demand and supply, the trading volume with the supply and demand etc. Finally taking the traffic development of Wenzhou recent years as example to analyze the for example to analyze, and verify the practicability of model.
Analysis the Function Formulation and Structural Dynamic Optimization of Transportation System
Authors: Lu Jian , Zhu Hai Yan , Cao Wen Qin
Published: December 2013

Transportation system is a typical economic system for its operation and structure optimization result from the comprehensive functioning of numerous dynamic and joint driving forces. To accurately grasp the genuine core of the basic principle and operational characteristics of structure optimization of the transportation system is to clarify the dynamic problems of it. The principles to which the characteristic and function and formulation of the transportation system complies are systematically analyzed in this paper. And the external and internal factors of structure dynamic optimization of the transportation system are researched, and further depiction is discussed from four aspects: acquirement, technology, fund, quality and environment respectively, and the source originated from optimization dynamic of transportation system, process of dynamic transmission, influencing factor of dynamic function based on the behavioral function of economy-main-body, which is of vital significance and meaning to the research of the mechanism and principle of the structural optimization of the transportation system.
A Cellular Automata Model of Opening Boundary Conditions Based on Community Bus Route
Authors: Wang Xiao
Published: December 2013

In order to fill the blank of the conventional bus routes and to provide a door-to-door transportation service, community bus is a new mode to connect the last mile of public transportation. This paper built a cellular automata model of opening boundary conditions based on the community bus route to explore that the running rules of community bus. Through numerical simulations using departure time interval and passenger arrival rate as index, phase diagrams are obtained and characteristics are found.
A Hybrid Algorithm for the Scheduling of Vehicles with Simultaneous Pickups and Deliveries
Authors: Pan Xiao Yong , Wu Jiang , Zhang Quan Wei , Lai Dong , Zhang Chen
Published: December 2013

This research studies the problem of scheduling vehicles with simultaneous pickups and deliveries. We propose a three step algorithm combining several classic heuristic and meta-heuristic algorithms, and the results show that this is better than the tradition way. On the other hand, the algorithm can provide not only the best solution, but also the bestNones, which makes the method robust to unexpected minor fluctuations.
Research on Flow Measurement Technology in the Field Test of Pumping Station Engineering
Authors: Feng Jian Gang , Xu You Wei
Published: December 2013

Pumping station engineering field test is the main basis of pumps technical renovation and the assessment of technical and economic indicators. Flow measurement is a key content of pumping station in the engineering field test. How to choose a reliable and applicable, economic and effective measurement method and measuring instruments is the key factor of success for flow measurement. In this paper, starting from the characteristics of pumping station engineering field test technology, to research it in three aspects .They are the method of flow measurement classification, working principle and characteristics of common measuring instruments, measurement methods and the selection of instruments and equipment. It also analyzes the different types of pumping station flow measurement technologies in engineering field test, and makes some explanation combined with typical examples pumping station project flow measurement.
Research Status of Fault Diagnosis Based on Support Vector Machine
Authors: Liu Li Mei , Wang Jian Wen , Guo Ying , Lin Hong Sheng
Published: December 2013

Support vector machine has good learning ability and it is good to perform the structural risk minimization principle of statistical learning theory and its application in fault diagnosis of the biggest advantages is that it is suitable for small sample decision. Its nature of learning method is under the condition of limited information to maximize the implicit knowledge of classification in data mining and it is of great practical significance for fault diagnosis. This paper analyzed and summarized the present situation of application of support vector machine in fault diagnosis and made a meaningful exploration on development direction of the future.
The Design and Implementation of P2P Traffic Intelligent Guidance System
Authors: Huang Zhi Min , Wu Qing Feng
Published: December 2013

Dropping or inhibition is the traditional way to control P2P traffic, which affects the user's experience. This paper implements an intelligent P2P traffic guidance scheme which combines recent P2PCache technology and some intelligent strategies. The scheme can fully make inner-network users interconnected, reduce the P2P interconnection traffic and improve the users experience.
60GHz Radio over Fiber System with 5Gb/s 32QAM-OFDM Downlink Signals Using Self-Mixing Homodyne Detection Technique
Authors: Shao Yu Feng , Shao Yu Feng , Gui Lin , Wang Shi Kui , Luo Yin Xiang , Tan Ze Fu
Published: December 2013

A novel self-mixing homodyne detection 60GHz radio over fiber (RoF) scheme with 5Gb/s 32QAM-OFDM downlink signals using discrete multitone (DMT) modulation is proposed and demonstrated by experiment. 5Gb/s 32QAM-OFDM downstream signals are transmitted over 42km SMF-28. The peak-to average power ratio (PAPR) characteristic, and the BER performance of 5Gb/s 32QAM-OFDM signals with different subcarriers generated DMT modulation and self-mixing homodyne detection are analyzed. The experimental results show the transmission performance of 5Gb/s 32QAM-OFDM signals with different subcarriers, and this RoF scheme is a suitable method for future 60GHz access system applications.
Development of System SMPSL for Bit Communication
Authors: Nemec Radek , Hubalovsky Stepan
Published: December 2013

The paper presents development of System SMPSL for binary communication. System SMPSL is computer system for measurement used in the school laboratory. The system is very cheap to assemble the hardware and available software is for free. The system consists of hardware and software parts. The communication is performed using library. The paper describes the basic connections and the source code for creating custom measurement system using a computer. Presented SMPSL system was developed based on mentioned basis.
RFID Network and its Application in Management of Aviation Maintenance
Authors: Li Qiang , Liu Hua Long
Published: December 2013

According to the existing status of civil aviation enterprises office network, this paper brings up a project to combined RFID and the VPN network which have been provided by the original system, by adding a RFID server. It bases on VPN technology to form a RFID intelligent aviation material management information system, without affecting the function of the original office network. The system is able to locate the material position in the warehouse and improve the level of the management on civil aviation material information.
Wireless Network Security Problems and Coping Strategies
Authors: Tang Jian Gang
Published: December 2013

Wireless network makes up the wired network shortcomings. With the popularity of the WiFi terminal, wireless network brings convenience, at the same time, the security threats are constantly upgrading, and the security issues have been plaguing the legitimate user. Wireless network security is not only with authentication, encryption, integrity testing and other technology-related, but also need intrusion detection systems, firewalls and other technology cooperation, so its a multi-layered problem. Not only the network administrator needs to take security measures to protect the network and comprehensive safety inspection, but also requires the users to enhance their network security awareness.
An Adaptive Model for Mobile Ad Hoc Networks
Authors: Luo Heng , Guo Ai Huang , Chen Jian Ping , Pei De Yang , Jiang Hua
Published: December 2013

Despite of a collection of Quality of Service (QoS) guarantee protocols, no one is able to perform adaptively due to the application dependent nature of those proposed QoS provision algorithms. In this paper a new adaptive model, termed AHP-TOPSIS, is employed to evaluate the performance of two routing protocols DSR and DSDV, based on which the system is capable of switching to the optimal protocol adaptively. The efficiency of the AHP-TOPSIS model is validated by extensive simulations.
Small-GEAR in the Specific Scenarios of Small Network
Authors: Wang Xun , Zhang Ling Hua
Published: December 2013

GEAR is an important geographic and energy aware routing protocol in wireless sensor network. As the GEAR is short of enough topology knowledge and the nodes energy is limited, routing void and routing loop will be arisen. This paper presents a smart energy aware routing protocol based on the geographic (SGEAR), which is suitable for the specific scenarios of small network. In the specific scenarios of small network, there are three major nodes to concentrate on, (1) the selected (2) the void (3) the residual energy is less than threshold. The SGEAR modifies the cost functions based on the residual energy, escaping the routing loop caused by the broadcast delay. From the simulations, the conclusions can be drawn that the smaller hop count doesnt indicate the less energy consumption, and SGEAR can reduce the void number, reducing the energy consumption of the entire network, which further prolongs the life of the network to satisfy the need of the specific scenarios of small network.
The Improvement of Mean - Shift Algorithm in the Video of Global Visual Robotic Fish in Tracking Moving Targets
Authors: Mai Zhi Yuan , Tan Kun Yu , Xu An Ting , Xiang Wei
Published: December 2013

The tracking effect is not good for the faster track with Mean Shift tracking algorithm when the difference is not obvious between the track target and background pixels in the video of global visual robotic fish.To solve the difficulty of tracking drastically moving targets in this paper, determining the position of moving targets in the next frame through comparing with two bc coefficients which have been set when the Epanechnikov has been selected core to estimate is indeed. The experimental results show the proposed algorithm can track the moving targets efficiently and precisely in video,and also can meet high real-time situation with small calculation.
A Hybrid Recommender Algorithm Based on an Improved Similarity Method
Authors: Song Rui Ping , Wang Bo , Huang Guo Ming , Liu Qi Dong , Hu Rong Jing , Zhang Rui Sheng
Published: December 2013

Recommendation systems have achieved widespread success in E-commerce nowadays. There are several evaluation metrics for recommender systems, such as accuracy, diversity, computational efficiency and coverage. Accuracy is one of the most important measurement criteria. In this paper, to improve accuracy, we proposed a hybrid recommender algorithm by an improved similarity method (ISM), combining demographic recommendation techniques and user-based collaborative filtering (CF) algorithms. Experiments were performed to compare the present approach with the other classical similarity measures based on the MovieLens dataset. The Mean Absolute Error (MAE) and Root Mean Squared Error (RMSE) values show the superiority of the proposed algorithm.
Weighted Kalman Filter Phase Unwrapping Algorithm Based on the Phase Derivative Variance Map
Authors: Wang Li Fen , Yan Man
Published: December 2013

The kalman filtering phase unwrapping is a state estimation problem. It can realize phase unwrapping and noise elimination at the same time, and calculate the real phase by establishing the state space model and vector observation model. In the steep terrain, the conventional kalman filtering algorithm unwrapping results are often not accurate, easy to cause the error transfer. Aiming at this problem, the weighted kalman filter phase unwrapping algorithm based on the phase derivative variance map is proposed. The values of the phase derivative variance maps are applied to determine the noise variance in the observation equation, then the weighted kalman filter is used to unwrap phase, this can increase the accuracy of the results. Finally, experiments are carried out in the InSAR data application under the condition of steep terrain, and with the conventional kalman filtering phase unwrapping algorithm are compared, the effectiveness of the proposed method is verified.
Flexural Strength of SHCC Panels Dependent on Fly Ash Type and Curing Condition
Authors: Bang Jin Wook , Hyun Jung Hwan , Lee Byung Jae , Joung Dong Su , Kim Yun Yong
Published: December 2013

A basic study is performed on the application of highly ductile SHCC(Strain Hardening Cementitious Composites) to precast method. A special focus was placed on applying class C fly ash with a high CaO content to secure early-age strength of the steam cured SHCC. The flexural strength of the SHCC panels dependent on fly ash type and varied curing methods were evaluated. The results showed that class C fly ash could enhance the flexural strength of 1 day-old steam cured SHCC panels. Additionally, 1 day-old steam cured specimens produced with class C fly ash exhibited up to 58% of the flexural strength of 28 day-old wet cured specimens produced with class F fly ash.
Nonlinear Finite Element Analysis of U Shaped Steel Plate Reinforced Concrete Coupling Beams
Authors: Lee Kang Min , Chen Liu Yi , Li Rui , Oh Keun Yeong , Chun Young Soo
Published: December 2013

Coupling beams have been used in high-rise shear wall buildings widely, which take great advantages of high stiffness, small lateral deformation and easy to satisfy with bearing capacity. Coupling beams exhibit different performance with deep beams, which always have small depth-to-span ratio. According to current standards coupling beams shall be reinforced with two intersecting groups of diagonally placed bars symmetrical along the midspan. It's always hard to optimize construction projects. This paper used the finite element software (Abaqus) to analysis and simulate the nonlinear behavior of steel composite reinforcement and compared the results to the current standards.
The Use of Recycled Aggregate in a Development of Reinforced Concrete Container as a Retaining Wall: Preliminary Study
Authors: Mohamad Noridah , Samad Abdul Aziz Abdul , Goh W.I. , Suffian S. , Hizami M.T.
Published: December 2013

Construction waste has been increasing due to fast development of construction industries. These wastes usually end up on landfill or to be left nearby construction site. This paper focuses on the potential use of recycled waste aggregate in a development of reinforced concrete rectangular container, RACC, as a solid waste storage. The filled container is intended to be used as a retaining structure at riverbanks to control erosion. The experimental programme include cube and cylindrical specimens tested to determine characteristic properties of recycle aggregate concrete (Pc, Pt, E). The characteristic properties obtained were used in designing the RACC to function as storage container and also as a retaining wall as referred to BS 8110 and BS 8007. Results showed that recycle aggregate concrete has relatively high compressive strength, tensile strength and modulus of elasticity. RACC size of 1.0 m x 1.0 m x 1.0 m with 150 mm thickness is found to be suitable and safe to be used both as container and retaining wall. This is proven by the maximum deflection and crack widths achieved which are lower than the allowable limit values.
Free Vibration Analysis and Damage Identification of Beam-Like Structures Containing a Crack Based on the Extended Finite Element Method
Authors: Zhang Xiao Dong
Published: December 2013

A scheme is presented for the free vibration analysis of beam-like structures containing a crack with the extended finite element method (XFEM). The scheme is compared with the traditional scheme with the finite element method. The natural frequency of a cantilever beam is analyzed using both the methods and the results are compared. A new method for the damage identification of a cantilever beam containing a crack is then presented.
Simple Formulae for Distortional Buckling Loads of Cold-Formed Thin-Walled Rack Members Upright with Rear Flange and Additional Lip Stiffeners
Authors: Yao Jian , Tang Ting Ting , Chen Bai Xin
Published: December 2013

The determination of the elastic distortional buckling loads of the cold-formed lipped channel sections upright with rear flange and additional lip stiffeners subjected to the pure bending was performed based on the analytic solutions combined with CUFSM. The parameter analyses were carried out under the extreme load case of pure bending, leading to approximate formulae for predicting the buckling half-wavelength and the modified factor to take into account the effect of the shear and distortional deformation of the flange section. The rotational restraint, provided by the web to the flange during buckling deformation, was then examined, and a more accurate linear approximate expression for the rotational restraint and the web stress was proposed. Based on these approximate formulae, simplified formulae were finally developed to predict the elastic distortional buckling loads of the cold-formed lipped channel sections upright with rear flange and additional lip stiffeners subjected to the pure bending. The proposed formulae are shown to be accurate through comparison with the results of CUFSM, easy to be applied, may be used in practical applications and taken account into design codes and guidelines.
Review of Research on the Seismic Behavior of Integral Prefabricated Prestressed Concrete Slab-Column Structure
Authors: Wu Li Li , Cui Ya Can , Zhou Rong Bin , Shi Jia Qing , He Peng , An Li Pei , Guo Zhi Ming
Published: December 2013

The integral prefabricated prestressed concrete slab-column structure was a new structural system introduced to China in 1980s. The structure has a series of obvious advantages and the scholars focus research priorities on its seismic performance. The research methods and developments of seismic behavior of the slab-column structure are summarized, and some measures are also put forward to improve the seismic behavior.
Gymnasium Natural Light Environment Optimization Design Oriented by Environment-Behavior Studies
Authors: Liu Ying , Yu Ge , Zheng Sai Wei
Published: December 2013

This research applied environment-behavior study to the design of gymnasium natural light environment, explored the inner link among natural light, gymnasium competition hall and the users behavior in a subjective-objective combined perspective. The research broke the misunderstanding of quantity-oriented design concept, and explained the dynamic characteristics of natural light in competition hall. The research made an overall judgment to the gymnasium natural light environment, and put forward the optimized design of gymnasium natural light environment by analyzing the elements of different users activities, needs and psychological characteristics in the gymnasium.
A Study on CO2 Emission Reduction Planning in the Water Sector in Office Buildings
Authors: Jung Ho Gun , Shin Sung Woo
Published: December 2013

Energy, CO2 and Water are most important issues that environmental impact in buildings and cities. These are related each other very closely. This study has attempted to analyze CO2 emission by water usages, sewage wastes and also water saving strategies like installation water saving devices, rainwater harvesting and gray water system in office buildings. To assess from the early design stage, should be developed regional water amount and regional CO2 emission factor by water. Consequently, estimated one sample office project in Korea and suggested effective CO2 emission reduction plan in the water sector. Total amount of CO2 emission in the water sector in sample office building is 188.25 t·CO2eq/yr.
Photocatalytic Efficiency for Dye Decolorization of the UV/TiO2, UV/TiO2 + In2O3 and UV/TiO2-In2O3 Systems
Authors: Wu Chung Hsin , Kuo Chao Yin , Lai Chih Hao , Chung Wei Yang
Published: December 2013

This study explored the decolorization of C.I. Reactive Red 2 (RR2) by the ultraviolet (UV)/TiO2, UV/TiO2 + In2O3, and UV/TiO2-In2O3 systems. The TiO2-In2O3 was generated by the sol-gel method and TiO2 + In2O3 was created by mixing TiO2 and In2O3 powders. The surface properties of TiO2, In2O3, and TiO2-In2O3 were analyzed by X-ray diffraction, a specific surface area analyzer, UV-vis spectroscopy, and scanning electron microscopy. The specific surface area of TiO2, In2O3, and TiO2-In2O3 was 29.5, 44.6, and 35.7 m2/g, respectively; additionally, the band gap of TiO2, In2O3, and TiO2-In2O3 was 2.95, 2.64, and 2.91 eV; respectively. The decolorization rate constant fit pseudo-first-order kinetics and that of the UV/TiO2, UV/TiO2 + In2O3, and UV/TiO2-In2O3 systems was 0.0023, 0.0031, and 0.0072 min-1; respectively.
Study on the Correlation between Cone Resistance and Soil Density Using Centrifuge Robot CPT
Authors: Sun Qing Lei , Hou Yu Jing , Zhang Xue Dong , Peng Ren
Published: December 2013

Density is one of the most important soil parameters. However, it is difficult to measure the density of soil model during centrifuge in flight. The cone penetration test (CPT) with robot provides a useful tool to determine the soil density of different models, as the cone resistance is closely related to soil density. This paper presents the correlation between cone resistance and relative density of sand, by doing centrifuge tests with robot CPT. Based on the test results, a formula that describes the correlation between cone resistance and sand relative density of Fujian standard sand is proposed for IWHR CPT attached to centrifuge robot.
Effect of Contraction Ratio on Hydraulic Characteristics and Local Scour of Allotypic Hybridtype Flip Bucket
Authors: Zhang Ting , Huang Qing Long , Wang Zhi Wei
Published: December 2013

The contraction ratio of lower bucket is an important parameter of the series jet characteristics of the allotypic hybridtype flip bucket (AHFB). Due to the effect of contraction in lower bucket and diffused in upper bucket, the jet flows cross and impact in the space domain. Systematic hydraulic model tests were developed to describe the rule of water-diversion and pressure distributions. This paper presents the variation of jet trajectory length and the local scour of this combined bucket. Based on these, the variation laws and estimation equations for hydraulic characteristics with different contraction ratio are proposed.
Dynamic Properties of Long-Span Steel-Concrete Composite Bridges with External Tendons
Authors: Wang Wei An , Li Qiao , Zhao Can Hui , Zhuang Wei Lin
Published: December 2013

The dynamic performance of large-span steel-concrete composite bridges with external tendons is investigated by deriving the formula of equivalent damping ratios of composite bridges, and by considering the influence of shear connectors stiffness of composite girders, external tendons, and pile-soil dynamic interactions on the dynamic properties of steel-concrete composite bridge. Finite element analysis indicates that the equivalent damping ratio has a significant influence on the dynamic response and damping coefficient adjusted must be conducted in structural dynamic analysis.
SEM Investigation of the Structure of Ceramic Matrix Composite Produced from Iron-Ore Waste
Authors: Stolboushkin А.U. , Zorya V.N. , Stolboushkina О.А.
Published: December 2013

The article gives the results of scanning electron microscopy (SEM) studies of the structure of ceramic matrix composite materials produced from iron ore waste. It is established that inside the matrix and the granules during the firing the processes of solid-phase and liquid-phase sintering with formation of new mineral phases take place. It is shown that in the matrix a liquid phase is formed, which fills intergranular cells and binds the particles of minerals together.
Fracture Analysis of Reinforced Concrete Bridge Structures with Account of Concrete Cracking under Steel Corrosion
Authors: Benin Andrey V. , Semenov Artem S. , Semenov S.G.
Published: December 2013

A direct 3D finite element (FE) modeling of fracture processes in reinforced concrete bridge structures is considered with account of the macrocracks initiation and propagation, real geometry of reinforcing elements, discontinuity in the bond-slip behavior, using elastic-plastic-damage constitutive equations for concrete. The comparison of obtained FE results with experimental data is presented and discussed for the pulling ribbed bars out of concrete blocks, the spalling of concrete cover at the automobile bridge and cracking of ballastless deck at the railway bridge.
The Research on Aggregate Microstructure Uniformity Image Processing of Asphalt Mixture Based on Computer Scanning Technology
Authors: Zeng Li Wen , Zhang Shun Xian , Zhang Xiao Ning
Published: December 2013

It has become one of the focus topics that using CT (Computer Technology) to obtain asphalt internal microstructure, but combining CT scan cross-sectional different characteristics to carry out digital image processing is rare at this stage, technical means that distinguishing internal material are still relatively rough and arbitrary large, can not be combined between digital image processing and mixture not damage test together effectively. This paper carried out image segmentation based on EM algorithm of Gaussian mixture model (GMM), analysis microstructure uniformity quality of asphalt mixture, and explores internal volume composition case by testing deeply. The results show that Gaussian Mixture Model (GMM) used in this paper can handle CT scan tomographic images better , judge aggregate distribution of asphalt mixture by sector scan method, and evaluate uniformity distribution of asphalt mixture aggregates through aggregate particles area ratio statistical analysis, the research results of this paper can provide reference significance for asphalt microscopic field study .
Effect of Shield Tunneling on High-Speed Railway Bridges under the Influence of Train Operations
Authors: Wang Xiao Jing , Xu Kai
Published: December 2013

This paper is based on one project of Metro shield tunnel across a high-speed railway bridge. In the study the impact of train operations is taken into account, the finite-element method is adopted to analyze effect of shield tunneling. The conclusions indicate that according to the different tunnels and relative positions of pile, the excavation of the tunnels would have different effects on pile foundation. When the construction of shield across the bridge, the nature of the soil and will have an effect on deformation and stress of pile. Due to tunnel excavation of bridge internal force on bridge attached to the forces of good roles and bad role. Additional deformation of the beams and the additional forces are very small, so they will not affect the bridge work.
A Grey System Theory in Construction Industry Default Prediction
Authors: Huang Wen Haw , Tserng Hui Ping , Chen Po Cheng , Nguyen Manh Duy
Published: December 2013

This is the study to utilize logistic regression before apply grey system theory to predict construction contractors default.Differ from previous research, this research try to reduce the number of financial ratio for default prediction and employs the area under curve (AUC) to assess the model performance. The empirical results show that the most favorable financial ratio has an acceptable discriminatory power under AUC curve. The result of this research indicates debt ratio plays an important role in construction contractors default prediction.
2D Simulation Flue Implementing the Lattice-Boltzmann Method
Authors: Ruiz David Bolívar , Mesa Andrés Aguirre , Alvis Rodrigo Gómez
Published: December 2013

Currently in the process of engineering, but increasingly implemented simulation methods since they are an economical and feasible to predict the behavior of some variable you wish to benefit. The problem of fluid simulation is a broad field of study, traditionally in this area are implemented domain discretization methods, volumes, differences or finite elements (Computational Fluid Dynamics), in this work, a different approach where the discretization is made on the physical properties of fluid and the fluid for reconstruction from its microscopic properties, simulating these, propagating Boltzmann distribution functions for the grid of nodes, this set is comprised of a fluid group of nodes, nodes fluid the border and nodes structure, docked the method to the boundary conditions necessary to simulate Glycerol in a pipe.
Design and Realization of Dai Writing Online Dictionary
Authors: Guo Hai , Zhao Jing Ying , Li Xiao Niu
Published: December 2013

Dai writing as the product of Dai civilization. Because of the limitation of culture and territory, it cant spread widely. In todays society, the utilization rate of it still very low, only few people are familiar with it and know it. Remain resources still very limited, cant touched by people. This article uses .net platform to develop Dai writing online inquiry system, meeting the learning requirement of people who want to learn Dai writing.
Optimization Simulation of Hybrid Assembly Production Sequencing Management
Authors: Liu Jian Feng
Published: December 2013

Sequencing of hybrid assembly production directly affects the balancecontinuity and punctuality of production process. First, the mathematical models with MILP of hybrid assembly production are established, and then the sets of sequencing scheme of minimum makespan which meet customers demands are obtained. Furthermore workshop simulation models with Flexsim software are established. In this paper, the painting hybrid assembly production line of some automobile engine manufacturing plant was employed to analyze the sequencing as an example, and the obtained painting production line sequencing scheme is consistent with the actual production of enterprises and it improves production capacity.
Weighting Method of Indicators for Safety Management System Assessment
Authors: Wu Chang Cheng , Zhao Hong , Fu Gui
Published: December 2013

Safety management system assessment (SMSA) was a hot point in the field of safety management practice and research. But, the weights of safety management system assessment indicators are different in former achievements. In this study, the scores of indicators in ISRS, NOSA, API and Basic Norms for Work Safety Standardization (BNWSS) were referenced to obtain the initial weights of the primary indicators for SMSA. The decision-makers preference for the four methods was settled by means of analytic hierarchy process (AHP). After Kendalls test for consistency of the four methods, the combination weighting was made considering the preference and consistence on the basis of AHP. The rationality of weighting result was evaluated with close degree. The close degree reached 91.0% which was satisfactory.
Construction and Application of SPA Based Safety Management System Assessment Model
Authors: Wu Chang Cheng , Jin Chang Qing , Fu Gui
Published: December 2013

The safety management system assessment (SMSA) model was built up on the basis of set-pair analysis (SPA) theory and its effectiveness was verified by practical application research. The assessment model of five-element identical-discrepant-antithetical connection number vector was formed in that the indicators were divided into five grades. The calculation of connection number component was simplified as rigorous rules were made for the grades division of indicators. The judging rule of grading safety management system (SMS) was established under the principal of confidence level. The applied research was conducted, which demonstrated that the SPA based assessment model could provide credible conclusion because the results highly agreed with those of BNWSS audition. In addition, this model can be applied to assess SMS of all levels and makes scientific judgment for future state of SMS.
Railway Passenger Customer Segmentation Method Based on User Preferences
Authors: Hao Zheng
Published: December 2013

This paper uses the clustering model SOM-Kmeans two segment to cluster the users on railway ticket selling system. First, it describes the types of customer segmentation and the general segmentation steps, then introduces the definition of user preferences, at last on the basis of calculation steps of SOM-Kmeans two segment algorithm, the customer segmentation model and algorithm is given based on user preferences.
An Empirical Study of Political Connections and SME Credit Financing: Evidence from Chinese Listed Companies
Authors: Zhang Su
Published: December 2013

A challenge for many small and medium sized enterprises (SME) is access to financing. Using a sample of companies listed on the Shenzhen SME board over the period 2010 to 2012, I investigate the extent of political connections in SME firms. I find that private entrepreneurs with political connection have the positive effect on the firms credit financing. Further, the roles of political connections are more important in regions in which the local economy is less market-oriented. My findings support the hypothesis of rent-seeking through political participation.
An Empirical Analysis on BOLL Expert System Based on Maximum Income
Authors: Wang Pin , Huang Hai Ping
Published: December 2013

This paper presents tests security transaction BOLL expert systems, through statistical experiments, with the wining rate, annual rate of return and net profit rate as the management objectives, on basis of the mass data generated by the security market; The results show that win rate value of BOLL expert system as high as 88.95%, and annual rate of return and net profit rate are 33.37% and 13.9% respectively. Compared with RSI expert system, the transaction times are only 52.09% of RSI expert system, which should be the true reason why the rate of turn of BOLL expert system is not high.
On the Transfer of Major Sports Events Risks into Commercial Insurance
Authors: Xu Wei Hong
Published: December 2013

By the application of literature consultation methods, inductive and deductive methods and behavioral economics, this thesis concerns itself with the study of risk and risk transfer during major sports events, and the analysis of risk transfer regarding facility construction, logistics, tourism and so on. The purpose of this thesis is that the smooth process of major sports events should be guaranteed by effective management of sports events risks. Based on the analysis of internal and external causes of risks emerged in major sports events, this thesis puts forward a concrete solution to the risk transfer - sports commercial insurance, which enables sports event organizers to reduce risks based on the knowledge of the causes of them.
Renovation of Urban Traffic in Shenyang City by the Twelfth National Games of China
Authors: Zhao Xiao Fan , Xu Li
Published: December 2013

In order to explore the effects of The Twelfth National Games of China (TNGC) on host city traffic, and improve efficiency of city traffic, we applied questionnaire survey and interview with local residents to acquire the change information of city traffic in Shenyang City. We analyzed city traffic conditions during preparatory period of TNGC, and change of urban traffic from TNGC including traffic road planning, running time of bus, subway construction, etc. Results indicated that TNGC has accelerated construction of transportation system. But there were still some problems, such as road construction leading to nearby residents inconvenience. Finally we puts forward some suggestions that before road were repaired, government tried to build a temporary, patency channel for residents in the vicinity.
Influence of the Twelfth National Games of China on Urban Construction in Shenyang City
Authors: Zhao Xiao Fan , Zhang Nan
Published: December 2013

Large-scale sports meeting can generally exert influence on host city planning and construction. Questionnaire survey and interview were applied to analyze the change of Shenyang City construction from The Twelfth National Games of China (TNGC). Firstly, we discussed the infrastructure construction during preparatory period of TNGC. And then, effects on urban public facilities and urban environment construction were explored in detail. Results indicated that both public facilities and urban environment construction have been improved during TNGC in general. However, the opinion of residents also showed some discord, and reflected some problems in urban construction which need be amended.
Research on Practical Teaching Innovation of Ergonomics Based on the Analysis of Data Related
Authors: Hu Wei , Li Da Guo
Published: December 2013

In this paper, present teaching situation of the course was analyzed systematic in the process of practice teaching of industrial design based on data correlated with the analysis of desks and chairs design. With characteristics of ergonomics of industrial design professional practice teaching in our university, a more reasonable way of teaching reform was explored in the purpose of practice teaching,teaching method and teaching means, and expected the teaching effect in the practice teaching process was put forward.
Separation and Purification of Ganglioside from Sika Deer Antler
Authors: Bao Ni Na , Yin Yong Guang , Wang Quan Kai
Published: December 2013

In this paper, a ganglioside was extracted using acetone from the lipid soluble fraction of sika deer antler which was extracted by supercritical CO2 extraction technology. The crude ganglisode was purified using silica gel column chromatography, was identified using TLC and was characterized by employing IR. The biological activities show ganglioside has obvious inhibitory activities, and the pure one is rather good than the crude one.
Determination of Synephrine and Naringenin in Aifunuangong Pills by High Performance Capillary Electrophoresis
Authors: Liu Hai Xing , Liu Qing , Feng Yi Min , Wang Lin Tong , Huan Yan Fu , Ye Kai Qi , Yue Hui Juan
Published: December 2013

This paper established high performance capillary electrophoresis method to determine synephrine and naringenin in aifunuangong pills. In 30mmol/L Na2B4O7 buffer solution (pH=10.00), effective separation of components to be tested was achieved, which provided a new approach of quality control of Chinese medicine aifunuangong pills.
Synthesis of Tetrahydropalmatine
Authors: Wang Dao Wu , Li Xiao Long , Feng Xin Xia , Zheng Jin Long , Zhang Long
Published: December 2013

Tetrahydropalmatine in overall yield of 18% was synthesized from alkaloids in Coptids Rhizoma with the similar structure of isoquinoline by a three-step reaction of alkaloids preparation, demethylation or demethylene-dioxy, deoxidation, methylation and so on. The structure was confirmed by 1H-NMR IR and ESI-MS.
Isolation, Structural Characterization and Cell Proliferation Activity of Abalone Polysaccharide from Different Regions
Authors: Wu Feng Juan , Li Guo Yun , Du Lei , Xue Yong , Xue Chang Hu , Wang Yu Ming
Published: December 2013

The polysaccharides were isolated from the abalone Haliotis discus hannai Ino cultivated from Qingdao and Fujian, and their proliferation activity on HepG2 cell was assessed. The monosaccharide composition of the abalone polysaccharides from Qingdao and Fujian was different, which might be related to their different geographical location and breeding conditions. The proliferation activity of abalone polysaccharide from Qingdao was better than that from Fujian. AAP, AVAP I and AVAP II were further isolated from the abalone polysaccharide from Qingdao, the cell proliferation activity of AVAP I and AVAP II was better than AAP, which might be depended on their monosaccharide composition. Our study would provide preliminary data for the high value utilization of abalone polysaccharides.
Growth Process of Periphytic Biofilm under Defined Local Hydrodynamic Conditions
Authors: Xia Jun , Hou Jun , Miao Ling Zhan , Dai Shan Shan
Published: December 2013

Flume experiments were conducted to assess the impact of defined local hydrodynamic conditions on the growth process of periphytic biofilm. Biofilms were developed in four different local hydrodynamics with friction velocities of 0.0027, 0.0064, 0.0117 and 0.0172 m/s respectively over a 36-day period. The initial colonization of microbial community was significantly delayed by high flow velocities. The dry mass, bacterial abundance and total EPS content of biofilms reached their maximal values at a critical friction velocity of 0.0064 m/s, as a result of the conflicting effects of mass transport and shear stress from local flow fluid. The results indicated that local hydrodynamics during periphytic biofilm growth conditioned the structure and composition of biofilms.
Introduction of Biofilm with an Analysis of its Typical Process
Authors: Li Li Xin , Wang Qiu Xu , Song Zhi Wei , Liu Yan
Published: December 2013

The classification and mechanism of the biofilm for treatment wastewater were introduced in this paper. Bio-contact oxidation, a typical biofilm process was described in detail. The example of treatment sewage of Heilongjiang University of science and technology proved that bio-contact oxidation process was more efficient for treatment sewage. It was considered as a wide range of application prospects.
Experimental Study of Shenqi Pollen Tablet on Altitude Sickness
Authors: Miao Ming San , Yu Shu Yan , Shao Shuai
Published: December 2013

Abstract. Mice model of the endurance and rat model of atmospheric oxygen were prepared in this paper. Study on the effect of Shenqi Pollen Tablet on altitude sickness. Shenqi Pollen Tablet could prolong survival time of mice、significantly reduce weight of rat right ventricular (RV) 、reduce leverage of the weight of right ventricular(RV) and left ventricular increases septum(LV+S),significantly reduce MDA level、NO level and NOS level、increase SOD level, improve hypoxia tolerance of organism.
Effects of Chemical Treatments on Seed Germination of Zoysia (Zoysia japonica Steud.)
Authors: Qian Li Li , Wang Shan , Ye Kai , Fang Cheng
Published: December 2013

Zoysia (Zoysia japonica Steud.) is a warm-season turf grass, which possess seed coat-imposed dormancy that hampers germination. The objective of the present study was to determine the most effective methods in breaking the seed dormancy of zoysia. This experiment was used to find the right concentration and treatment time. KOH, NaOH, C3H6O, and H2SO4solutions are the four kinds of chemical agents used which were evaluated and sixty four treatments were conducted. The results indicated that all chemical agents investigated can successfully remove glumes and promote seed germination of zoysia under certain concentrations and treatment times. The best method for seed dormancy breaking in zoysia was 20% KOH solution for 30 min.
Residues and Sources of DDT and HCH in Agricultural Soils in the Suburb of Beijing, China
Authors: Li Xin Rong , Zhao Tong Ke , Li Shun Jiang , Zhang Cheng Jun
Published: December 2013

Abstract. Twenty-five topsoil samples (0-20cm) were collected to determine the dichlorodiphenyltrichloroethane (DDT) and its metabolites, isomers of hexachlorocyclohexane (HCH) residues from the agricultural soil in the Miyun County. The average measured concentrations of HCH and DDT were 1.07±0.84 and 6.54±7.88 ng·g-1, separately (dry weight; n=25; shown as arithmetic mean and standard deviation), which were lower than most of the results reported in literatures. Both of the detectable rates of HCH and DDT were 100％ and the residual levels was lower than most of other Chinese region．According to the values of isomers ratios, it show that HCH mainly from residues, therefore there were still new sources of DDT which entered into the soil of the studied area.
Corrosion Behavior of Zn and Cu as Grounding Material in Shanbei Soil Solution
Authors: Wang Seng , Gao Shu Jun , Li Zhi Zhong , Hu Ya Bo , Ji Hong Liang , Dong Chao Fang , Li Xiao Gang
Published: December 2013

The corrosion behavior of typical grounding materials Zn and Cu in Shanbei soil solution was studied by immersion test technique, galvanic corrosion current measurement and simulated stray current test. The results showed that Zn was seriously corroded with the corrosion product of ZnCO3, while Cu was slightly corroded with the main rust of Cu2(OH)2CO3 and copper oxides. The corrosion of Zn was accelerated and Cu was protected when coupled them together. Stray current can significantly increase the corrosion process of both Zn and Cu.