bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Control System of Scan Robot for Circumferential Weld
Authors: Zhang Jie , Wang Chun , Zhang Liang Dong
Published: June 2013

As the detection efficiency and defect evaluation accuracy of traditional ultrasonic testing of weld is low, in this paper a new control system is developed to accomplish high-efficiency and high-precision evaluation of weld. This system includes Centralized Control, Control of ultrasonic probe and running mechanism. The heart of the system is DSP, and it can control motion of the scan robot along the circular rail and ultrasonic probe along radial direction of circumferential weld, and realize collection and processing of ultrasonic signal by the comprehensive application of computer, automation, precision instrument, motor driver technology. Practice shows that this new system has realized digital, intelligent, automation of ultrasonic weld inspection, and improved Reliability and efficiency of weld inspection.
Five Degrees of Freedom of the Three-Arm Robot in the EOD
Authors: Fu Wei , Ouyang Zhen Guo
Published: June 2013

This paper sets out to given a geometric method for solving three-arm five degrees of freedom manipulator kinematics inverse problem. With the both eyes stereo-identity system, thebomb-disposedrobot accomplished the EOD mission in a completely open environment. using image recognition technology, estimation about producing weight and clamping width in the image of the suspicious explosive object is obtained. The project is proved feasible by experiment.
Delay Analysis of Trains in Simulation System for Urban Rail Transit
Authors: Wu Chao Qun , Gao Jing Peng , Lv Yan Feng , Ye Shi Han
Published: June 2013

The delay in trains generated by an incident often occurs in urban rail transit scheduling, and how to faster and more accurate estimates the delay time of the trains will determine whether or not the influence can provide at the top speed. In this paper, we analysis the working process of the primary delay and the secondary delay, present the methods to calculate the delay time of the trains in case of non-overtaking and overtaking. We adopted the simulation technique to analysis the delay time of the trains. These methods have been inserted the Urban Rail Transit Trains Operation Control Simulation System as an analytical tool.
Performance Test of Automotive Transmission Control Mechanism
Authors: Liu Rui Jun
Published: June 2013

The right panel drawing direction is an important prerequisite for generating qualified parts, an important step before the panel forming simulation is to determine the reasonable direction of the drawing. Manually adjust parts in order to overcome rely on experience, the drawbacks to the drawing direction, the direction of the drawing punch and forming the contact area of the sheet as the goal of automatic determination algorithm. Objective function of the direction of the drawing for the variable contact area in the drawing direction of the feasible region, the use of heritage algorithms to optimize the objective function of the contact area and, ultimately feasible within the contact area corresponding to the drawing direction, that is the best drawing direction. The measured results show that the direction of the drawing based on genetic algorithm, the automatic algorithm can fast and accurate to obtain the optimal direction of drawing.
The Application of Automatic Code Generation Technology in the Development of the Automotive Electronics Software
Authors: Liu Yuan , Li Yan Qiang , Zhuang Ru Ke
Published: June 2013

Aiming at the present state of software development of the Automotive electronics system, the Simulink/Stateflow of Matlab and the code generation tool Targetlink were applied to realize the modeling and simulation of system and code automatic generation of the Automotive electronics software. An example of the software development of automobile anti-theft alarm system was implemented by requirement analysis, system modeling, simulation test and code generation.
Research of Intelligent Automotive Alternator Control System to Reduce the Fuel Consumption
Authors: Li Bing , Yang Dian Ge , Kong Wei Wei , Lian Xiao Min
Published: June 2013

The amount and the power of the electrical appliances on cars are increasing, and the fuel consumption produced by the electrical system is getting larger. To design an automotive electrical power system with higher efficiency is a very practical requirement. In this paper, we proposed an automotive intelligent alternator control system. In this system, we divided the battery states to different partitions by state of charge, and designed an intelligent alternator control system to work in different mode according to the battery partition and the vehicle state. With this system we can realize the braking energy regeneration for traditional cars and reduced the fuel consumption. We carried out the experiment with a car, and the results indicated that with this system, the fuel consumption can be reduced by about 2-3%.
Dynamic Temperature Test for PTC Material Used to Heat Diesel
Authors: Wang Jun , Li Xiao Lu
Published: June 2013

This paper gives a way which utilizes the PTC (positive temperature coefficient) materials to preheat diesel in the injector in order to improve the cold start performance and emissions of engine. Combining high performance data acquisition system based on MSP430F149, a dynamic temperature testing system was developed to test fuel temperature heated by PTC in injector. The software and hardware electrocircuit were expounded in detail. The temperature varying law of diesel fuel heated with PTC ceramics was measured under different voltage. A conclusion can be draw that diesel fuel may be heated to self-defined temperature around Curie point when diesel fuel was heated with PTC material.
Design of an Intelligent De-Icing System for Offshore Structures
Authors: Zaman Kamran , Mughal Umair Najeeb , Virk Muhammad Shakeel
Published: June 2013

The offshore activities in cold waters have moved from shallow to deep sea waters, which require different operations as compared to activities in hot sea water. Such offshore operations in cold regions like arctic may be effected by the ice accretion on deck and other areas of structure. Ice mainly accretes from both sea spray and atmospheric icing, which can create problems for operational environment and safety of people working on offshore structures in cold regions. In this research a lab based experimental study has been carried out to preliminary design and test an intelligent thermal anti/de-icing system. The experimental study was carried out in cold room chamber of Narvik University College, where temperature can be well controlled between +10 to-30 °C. The proposed intelligent thermal based deicing system can be used to control the communication between icing sensors, weather station, heating devices and central control unit. In this preliminary design phase, a simple surface temperature control method has been developed and tested that can further provides an efficient thermal deicing method and will also be capable to control the surface temperature of objects of interest in cold regions
Research on Automatic Exchanging Technology of Unwinding Rollers in Processing on Compounded Film
Authors: Xie Lin Li , Hui Jing
Published: June 2013

In compounded film process, as the way of exchanging rollers manually in the end of unwinding rollers will lead to a decline in production efficiency, a multi-motor wheeled automatic roller exchanging system is proposed. The system drives four servo motors by Programmable Multiple-Axis Controller (PMAC) simultaneously, makes two servo motors which drive cross shaft and cutter shaft under high precision position control mode, makes the other two servo motors which drive unwinding rollers under speed control mode, detects the position of dancer roll to keep tension constant. Compared with the way of exchanging rollers manually, the new way can exchange rollers effectively with no downtime, improve the production efficiency and the rate of finished products.
Research on Bench Test System for Vehicle ABS Performance
Authors: He Ji Du , Zheng Yong Jun , Tan Yu , Wu Gang , Liu Zhao Feng
Published: June 2013

According to the ideal wheel speed change curve during the ABS braking and the vehicle inertia electromechanical mixed analog principle, the bench testing system for vehicle ABS performance was designed. In order to improve the reliability of the wheel velocity detection and optimize the systematic structure, the method of using the free roller to detect wheel speed and the regenerative braking energy compensation of asynchronous motor were proposed. The results show that designed test bench system can achieve ABS performance testing.
A Review of Control Strategies for Permanent Magnet Synchronous Motor Used in Electric Vehicles
Authors: Li Jun , Yu Jia Jun , Chen Zhenxing
Published: June 2013

This paper mainly reviews the development of permanent magnet synchronous motor drive system. It presents several approaches of PMSM control strategies, including control strategies based on classical control, modern control and intelligent control. Theoretical background briefly describes the properties of these control techniques. Among these control strategies, vector control and direct torque control are considered as the mature methods for PMSM motors control currently. Advanced control strategies, with adaptive control, variable structure control and intelligent control included, improve the performance of PMSM in some respects, such as variations of plant parameters sensitivity, external disturbance and so on. It shows that the researches in this area are still a popular research topic. Finally, this paper prospected the foreground of the control strategies for PMSM.
The Research of Fuzzy Direct Torque Control in Switched Reluctance Motor
Authors: Zhang Xiao Chun , Liu Xiao Jun , Ren Kai Chun , Zhu Li Jie , Zhan Jing Jun , Shi Yong
Published: June 2013

Torque ripple is a disadvantage of SRM. Using DTC strategy can cut down the ripple. DTC is a kind of Bang-Bang control, the result is limited. Fuzzy control can measure the error level to get better result. CCC strategy, DTC strategy and fuzzy DTC strategy are simulated in the article. Simulation results show that DTC strategy had cut down the ripple to some extent than CCC and it works better by combining with fuzzy control.
Low Cost System Design for Identification and Anti-Counterfeiting of Goods Using RFID Technology
Authors: Tian Tian , He Yi , He Er Hua
Published: June 2013

This paper proposes a system design for identification and anti-counterfeiting of goods using RFID technology. The system consists of RFID reader, antenna and tags, since most application systems are cost sensitive, different protocols are compared and then ISO/IEC 15693 is selected as communication protocol. By tuning the value of Q and by matching the resonance for both reader and tags, the systems performance has enhanced a lot especially for the distance of read and write. To search RFID tags easily, 16 slots anticollision is adopted and gives a command design flow. For the anti-counterfeiting, EAS method is used, by setting the related memory bit, EAS function is activated and can protect goods from stealing. Such system has a variety of applications such as libraries, asset management, logistics and so on.
Workspace Comparison Study of Two Plane-Symmetry Parallel Machine Tools
Authors: Shi Yan , Zhang Peng Cheng , Yue Hong Xin , Guo Lian He
Published: June 2013

Workspaces of two plane-symmetry parallel machine tools whose limbs are composed of the revolute joint, the prismatic joint and the spherical joint were studied comparatively in this paper. Firstly, manipulators of the plane-symmetry 3-RPS parallel machine tool and the plane-symmetry 3-SPR parallel machine tool were introduced, and their simulation manipulators were given. Secondly, the workspaces of the plane-symmetry 3-RPS parallel machine tool and the plane-symmetry 3-SPR parallel machine tool were solved and expressed in the same figure on the basis of the computer aided geometric technique method, respectively. Lastly, indices measuring the workspace were defined, and workspaces of the plane-symmetry 3-RPS parallel machine tool and the plane-symmetry 3-SPR parallel machine tool were analyzed comparatively from two aspects: positional workspace and posture angle.
Rolling-Friction Behavior of Sub-Micron Polystyrene-Sphere Arrays under Very Light Loads
Authors: Qu Jiao , Ge Shi Rong
Published: June 2013

The uniform sub-micron colloidal spheres were arrayed on the surface of a Si substrate via self-assembly to forming a sphere-layer film (monolayer), with emphasis on the application of rolling friction in the presence of rolling spheres on the surface of micro- or nano-equipment. It was found that the arrayed spheres on the substrate are mobile arising from rolling, and they can significantly reduce the friction force through changing the sliding friction to rolling one, thus exhibiting a smaller friction coefficient value than that of pure substrate. On the other hand, the elastic deformation of polystyrene (PS) spheres also contributes to the reduced friction force. In the absence of lubricant, the optimal friction coefficient of sphere-layer film was found to be 0.059 at the load of 3500 µN, at which the friction force of sphere-layer film was only 68% that of substrate. The friction coefficient of sphere-layer film decreases with increasing the applied load up to 3500 µN, followed by an increase with a further enhanced load, which has been ascribed to the transition from elastic contact to plastic one.
First-Principles Calculation of Elastic Constants for FeP
Authors: Li Jian Ying , Zhang Jing , Cao Qi Zhi , Ouyang Yi Fang
Published: June 2013

The elastic constants of FeP with orthorhombic structure were calculated by using the density-functional theory method. The formation enthalpy, electronic density of states, bulk modulus, and lattice parameters of orthorhombic FeP were also calculated. All of the results are in good agreement with the experimental data and theoretical results available. The results indicate that orthorhombic FeP intermetallic compound is brittleness.
Piping System Design of Subsea Manifold
Authors: Zhang Jing An , Wei Zhuo , Li Cheng Gang , Sun Chang Bao
Published: June 2013

Show the layout of subsea manifold piping system, whose design base on the relevant parameters of the E oil and gas field in West Africa. The piping system adapt to the sea situation. The maximum stress of the piping system is within the allowable range under wind load, the pressure and temperature stress of circulating medium and wave load, even in the splash zone, and passed the stress test.
The Calculation and Adjusting of Die-Casting Parameters of Car Pump Cover
Authors: Zhang Yu Xi
Published: June 2013

All die-casting products should be made by the production processes of product design, blank design, mold design and die-casting, etc. However, for the short delivery cycle ,many enterprises more or less tend to complete the work in sequence mentioned previously ,and don’t rely on the calculation but experience when designing. They will enter an absurd cycle as the time passes. The work done later is often used to remedy the defect which was caused by work done previously. Some problems may be solved by the later work, but some defects can not be remedied by the later work for ever, furthermore, they can’t ensure the quality, delivery date, qualified rate, productivity, and so on. So it is critical to make whole calculation scientifically in previous.
Structure Strength Analysis for Universal Coupling of Medium Thickness Plate Mill Based on FEM
Authors: Guan Li Kun , Liu Wei Dong , Wang Ning Ning
Published: June 2013

In this paper,in view of the fork head often broken of the main drive system of a medium thickness plate mill,finite element analysis software ANSYS is used to establish universal coupling model and analyse static strength of the universal coupling, woning maximum stress value of the fork head and cross shaft at maximum load and analysing fracture reason of the fork,which could provide a theoretical basis for the cross shaft universal coupling strength analysis and structural optimization design.
Study on Optimal Design of Flywheel Structure Based on APDL
Authors: Wu Zheng Jia , Lin Pan , Zhou Yu Qiong
Published: June 2013

Taking the typical axisymmetric flywheel as an example in this paper, use APDL (ANSYS parametric design language) to analyze the stress of the flywheel stucture under the maximum load through parametric modeling, parametric meshing, parametric solving and parametric postprocessing, etc. Optimize the flywheel structure through reconstruction and reanalysis with the APDL, the optimizition result shows that APDL is a good solution for the optimization design of the flywheel structure.
The Design and Application of DCS in Control System for Ceramic Kiln
Authors: Yi Ming , Yang Zhi Ping
Published: June 2013

For the characteristics of control system for ceramic kiln, a new high-reliability control system is presented in this paper, using a hierarchical configuration, the DCS control system for three subsystem is designed, The temperature and atmosphere of kiln are controlled by fuel metering and air fuel ratio with computer and PLC, the structure and software design of the system are introduced, It is an advanced control technology. It’s validity is verified in a practical kiln monitor and control system. This template explains and demonstrates how to prepare your camera-ready paper for Trans Tech Publications. The best is to read these instructions and follow the outline of this text.
Prediction Model of Passenger Waiting Time in High-Speed Rail Hub Based on Bp Neural Network
Authors: Pei Yu Long , Zhou Kan , Peng Ting
Published: June 2013

In order to explore the characteristics of passenger waiting time in high-speed rail hub, this paper analyzed the influencing factors of passenger waiting time, based on the survey of passenger waiting time in high-speed rail hub. And the main influencing factors were screened out using variance analysis. Then the prediction model of passenger waiting time based on BP neural network was established, the parameters of the model were calibrated and the validity was verified. The results show that, travel time in urban area, trip distance, familiarity toward the hub, educational background of passengers, and the type of transportation is the main influencing factor of passenger waiting time in high-speed rail hub, and the average relative error is only 9.2% using the proposed prediction model of passenger waiting time based on BP neural network.
The Intelligent Diagnostic System of Vegetable Diseases Based on a Fuzzy Neural Network
Authors: Wei Qing Feng , Luo Chang Shou , Cao Cheng Zhong , Guo Qiang
Published: June 2013

To overcome the disadvantages that image analysis of agricultural disease diagnosis was not practical in the field, and the expert diagnosis system had an unsatisfied correct rate, a diagnostic model based on fuzzy rule and BP neural network (back propagation neural network) was constructed. The input vector in the model was formed by a unified description of symptoms using plant protection terms and combined with the membership. The intelligent diagnostic system of vegetable diseases based on the diagnostic model was developed by the mixed programming of Visual C # and Matlab. The test shows that the diagnostic correct rate of the system is 88.95%, and it has better fault tolerance and practical value.
The Role of Tourmaline Particles in the Moving Bed Bioreator for Coking Wastewater Treatment
Authors: Zhang Jing
Published: June 2013

Tourmaline is a kind of natural low-cost mineral material. It has a number of unique physical properties and has been a kind of promising environmental material in wastewater treatment. This study was to investigate the aerobic biofilm treatment of coking wastewater with and without tourmaline addition. The results indicated that tourmaline added in moving bed bioreactor (MBBR) process could enhance the removal efficiency of chemical oxygen demand (COD).The organic contaminants could be removed by tourmaline added. The mechanisms of increase of organic contaminants removal may correlate to the existence of tourmaline spontaneous electrode. Micrograph of the excess sludge in the tourmaline-MBBR system indicated that the tourmaline added could be the carrier of the microbe and also affect the biomass and pollutant removal.
Optimization to Human Thermal Comfort in Transitional Spaces by Artificial Immune Algorithm
Authors: Huang Xian Feng , Lu Yi Min
Published: June 2013

The HVAC (Heating, Ventilation and Air-conditioner) technology is an efficient approach to achieve dynamic thermal comfort in the transitional spaces where connect the interior and exterior space. The paper describes an optimized method to thermal environmental parameters in the hot summer and warm winter zone is benefit to human comfort, health and energy saving. Based on the dynamic comfort equations and the advantage of artificial immune algorithm in tackling combinatorial optimization to engineering problems, the artificial immune algorithm has been applied to the optimization of thermal parameters for the HVAC design within a transitional space. Therefore, it is shown that the proposed algorithm here might be adopted in the control of the HVAC system.
Numerical Simulation of Rough Surface with Crossed Texture
Authors: Chui Ming Wei , Feng You Qian , Wang Wei , Li Pei Lin , Li Zheng Chao
Published: June 2013

To meet the demands for rough surfaces data in the research of surface engineering, contacts characteristic and so on, a new numerical simulation of rough surface is proposed. Based on FFT method, rough surface with single direction texture is simulated with circular cosine-exponent autocorrelation function (ACF), and the generated surface is rotated of different given angles respectively by rotation of reference system, then the rough surface with multi-direction texture is created by synthesizing the rotated surfaces. The simulation results show that, the ACF curves of generated surface is periodic fluctuation decay, and has a good fitting result with the predetermined ACF. The contrast result between simulated surface and measured surface shows the available of the proposed method.
A Novel Method of Transfer-Function Identification for Unknown Systems
Authors: Huang Chung Neng , Cheng Chen Min
Published: June 2013

This study proposes a new modeling method for unknown systems. Through this method, the transfer functions can be identified. First, the input-output data pairs of the unidentified system should be collected. Then, the transfer function’s coefficients can be identified based on the errors via the derivative-free search methods such as GA etc. Here, a second-order transfer function is used in this study. For a second-order transfer function is difficult to approach each system, a plurality of transfer functions may be used depending on the precise requirement. Finally, following the previous steps, the other transfer function can be found in succession. In order to confirm the effectiveness of this proposed method, an electromagnetic flywheel (EF) system is used in this study. Such kinds of systems are always with many uncertainties as nonlinear electromechanical coupling and electromagnetic saturation, etc. They are difficult to modeling via traditional mathematic ways. In this study, the data pairs of EF system is collected by experiments. By assessing the results of the proposal and experimental data shows that this method is feasible to any unknown systems. system, achieve more saving energy and high efficiency control purposes.
An Intelligent Aerobic Expert System Combining CBR and RBR
Authors: Jian Yu Mei , Chen Ming
Published: June 2013

According to the highly dependent on breeding characteristics of the aquatic products, this paper builds an intelligent aerobic expert system which combines two kinds of artificial intelligence technique, case based reasoning (CBR) and rule based reasoning (RBR). After retrocede the collection data, firstly, the case base is retrieved to find the similar solutions. Only when the solution cases can not be obtained from the case base or the case solutions are not satisfactory, is the RBR system used to solve problem and then the reasoning result is stored in the case base for future use. The intelligent aerobic expert system can real-time monitor water oxygen, and startup or shutdown the aerator, monitor the large factory farmed.
The Research of State Memory-Based Intelligent Socket
Authors: Zhang Bo Quan , Lei Jin Jun , Zong Jian Hua
Published: June 2013

Most of people have the habit of not cutting off power when equipment is shut down. This wastes a large amount of power. In view of this situation, an intelligent socket is proposed, which can produce operating states of electrical equipment through human-machine interaction and memorize these states in its non-volatile memory. With the number of use increasing, the socket can store more and more the running states of appliances and become more and more intelligent, which can make it cut off the power when appliances stop running and save a lot of power. This paper discusses the basic architecture of this kind of socket, abstracts two-tuple status model memorizing the running states of appliances, and designs the control algorithm based on the status model which can produce new running states or adjust old running states and yield instructions to power on or power off the socket.
The Logistics Characteristics Analysis on Flexible Conveying Device of Mini-Type Sugarcane Harvester
Authors: Li Li
Published: June 2013

This article aims to provide the theoretical reference for the design and development of sugarcane harvester through analyzing the logistics characteristics of conveying device and find out the key factors which influence on the conveying capacity. Firstly, the force statuses of sugarcane passing the conveying device were analyzed at different locations and time. Secondly, in the flexible double roller, the sugarcane conveying process and the traction coefficient were studied and the conditions of sugarcane smoothly conveyed were discussed. Thirdly, the key factors influenced on the device conveying capacity including the structure parameters, the traction force and the sugarcane lifting angle were analyzed in detail. Finally, the test had been done to verify the key factor for the conveying capacity of device.
Robust Adaptive Nn Control of Ship Course Autopilot Based on DSC
Authors: Sun Hong Ying , Yu Feng Wei
Published: June 2013

The problem of adaptive control design of ship autopilot with rudder dynamics is studied. The model is described by a third order nonlinear model for parametric uncertainties. An adaptive neural network (NN ) control algorithm based on dynamic surface control (DSC) is developed. With only one learning parameter and reduced computation load, the proposed algorithm can avoid both problem of explosion of complexity in the conventional backstepping method and singularity problem. In addition, the boundedness stability of the closed-loop system is guaranteed and tracking error can be made arbitrary small. The effectiveness of the presented autopilot has been demonstrated in the simulation.
Multi Population Genetic Algorithm on Solving Multimodal Function
Authors: Wen Hao , Chen Han Bin
Published: June 2013

This paper studies the way to solve extreme value of the nonlinear multi-peak function by using the multi-population genetic algorithm (MPGA). With the analysis of the advantages and defects of the standard genetic algorithm (SGA),the paper, This paper is use the population genetic algorithm to achieve the optimization and verification with Simulation for solving the extreme value of the nonlinear multi-peak function, which in order to achieve the solution with higher accuracy and higher efficiency. And make the analysis for the premature convergence that existed in SGA by comparing the standard genetic algorithm simulation results with that form the MPGA.
An Error Minimizing Partitioning Method for the Nearest Neighbor Search
Authors: Lee Seung Hoon , Kim Jaek Wang , Lee Jae Dong , Lee Jee Hyong
Published: June 2013

The nearest neighbor search in high-dimensional space is an important operation in many applications, such as data mining and multimedia databases. Evaluating similarity in high-dimensional space requires high computational cost; index-structures are frequently used for reducing computational cost. Most of these index-structures are built by partitioning the data set. However, the partitioning approaches potentially have the problem of failing to find the nearest neighbor that is caused by partitions. In this paper, we propose the Error Minimizing Partitioning (EMP) method with a novel tree structure that minimizes the failures of finding the nearest neighbors. EMP divides the data into subsets with considering the distribution of data sets. For partitioning a data set, the proposed method finds the line that minimizes the summation of distance to data points. The method then finds the median of the data set. Finally, our proposed method determines the partitioning hyper-plane that passes the median and is perpendicular to the line. We also make a comparative study between existing methods and the proposed method to verify the effectiveness of our method.
Biclustering Gene Expression Data by an Improved Optimal Algorithm
Authors: Wang Ming Qian , Tian Wei , Kang Hao , Gao Wen Ju
Published: June 2013

A novel biclustering algorithm is proposed in this paper, which can be used to cluster gene expression data. One of the contributions of this paper is a novel and effective residue function of the biclustering algorithm. Furthermore, a new optimal algorithm which is mixed by the parallel genetic algorithm and the particle swarm optimal algorithm is firstly used to the algorithm of the biclustering for gene expression data. we compared our algorithm with traditional genetic algorithm in biclustering. The results reveal that novel proposed algorithms could discover the interesting patterns in the gene expression profiles.
The Optimization of Traffic Signal Control Using LP and NLP
Authors: Lim Dae Young , Zhou Xuan , Chong Kil To
Published: June 2013

This paper develops a new algorithm for the dynamic intersection control based on linear and nonlinear program. A new set of formula based on geometric construction are proposed to estimate the steady-and-oversaturation delay, which occasionally have the only one kind of controllable variable of the green splits. As a dynamic model, it can automatically adjust the split green ratio to achieve the minimal delay.Since the objective function of over-saturation delay is linear and under-saturation delay is nonlinear, the combination of linear and nonlinear program can be applied to either over-saturation or under-saturation situation. The simulation result shows that dynamic allocation of green time using LP combined with NLP can obtain less delay than using single liner programming.
The Numerical Simulation of Multi-Directional Forging EQ153 Steering Knuckle
Authors: Zhou Zhi Ming , Hu Yang , Tang Li Wen , Zhang Bao Liang , Luo Jing , Wang Xiang , Song Xiao Fang , Yao Zhao Yun
Published: June 2013

This paper centers on EQ153 steering knuckle multi-directional forging forming, and applying Deform-3D to simulation the deformation process. According to temperature, effective strain, load prediction and final forging shape to illustrate in such a process a near-net-shape forming with no flash and little draft angle and lower pressure is been formed.
Some New Research on the Strengthening Buffer Operators
Authors: Wu Li Yun , Wu Zheng Peng
Published: June 2013

Based on the present theories of buffer operators, a class of geometric strengthening buffer operators based on the interpolating function is proposed. Dangs strengthening buffer operators are proved to be special cases. Then we studied the features and connection between these strengthening buffer operators. We applied firstly the interpolating function to the construction of buffer operator, so a new direction was opened up for how to construct buffer operators.
H∞ Filtering for a Class of Networked Control Systems with Packet Dropouts
Authors: Zhang Hua Jing , Zhang Xue Feng , Shen Yan Xia
Published: June 2013

The problem of H∞ filtering for networked control system with packet dropouts is discussed. By analyzing packet dropout dynamics and presenting a switching filter, the new filtering error system corresponding to the dynamic information of the packet dropouts is structured. A sufficient condition in terms of LMIs for the system to be stable with a prescribed H performance is obtained. The result is less conservative. A numerical example illustrates the effectiveness of the presented method.
An Agent-Based Approach for Multi Performance Optimization in Grid Computing
Authors: Meng Sa , Xiang Yan Ping , Yu Sheng Ji
Published: June 2013

The challenge of multi performance optimization has been extensively addressed in the literature based on deterministic parameters. Since resources in Grid Computing platforms are geographically separated and heterogeneous, it is rather difficult to apply a uniform distribution algorithm for achieving various optimization goals. Based on the analysis of grid service performance measures, this paper proposes an approach for optimal network resource distribution which is aimed to satisfy both the users and the service providers requirements. Illustrative examples are presented.
An IoT-Based early Warning System for Patients with Heart Disease
Authors: Piao Xing Zhe , Piao Hai Yin , Yang Song , Xue Yu Shan
Published: June 2013

An IoT-based early warning system was proposed for patients with heart disease, and presented a two-stage early warning approach. Neural network was introduced to clinical data analysis. Monitoring data collected by IoT was taken as the feedback to neural network to personalize the prediction model in accordance with the individual physical difference. Based on the two-stage prediction method, the alarm is given according to several rules, aim to warn the patients with potential heart attack ahead of time, and accurately by this system.
System Target Damage Assessment Based on FAHP
Authors: Zhang Xiao Nan , Du Si Lang , Yang Jun Feng , Cao Wei
Published: June 2013

It is found that the traditional BDA methods are not appropriate the system target BDA. A new method of the system target BDA is proposed in this paper. Firstly, based on Hierarchy Analysis Method (AHP), the system target function index system is set up. Secondly, the step of system target function damage assessment method is analyzed and proposed based on Fuzzy Analytic Hierarchy Process (FAHP). Finally, an example of air base damage assessment is given to verify the validity and availability of the proposed method.
Summary on Design and Analysis Method of Transplanting Mechanism of High Performance Rice Transplanter
Authors: Zhang Min , Zhou Chang Sheng , Zhang Wen Yi
Published: June 2013

Transplant quality and performance of rice transplanter depend on transplanting mechanism, common design and analysis methods was introduced based on high performance transplanting mechanism, and also introduced research status and shortages of various kinds of methods, and also put forward the develop direction of design and analysis method for transplanting mechanism, simultaneously provided a method reference to design and optimize the high performance transplanting mechanism.
RFID in the ETC of City Application
Authors: Tang Zhao Xia , Liu Hu
Published: June 2013

ETC has become an urgent need of social development. This paper first analyzed the current situation of highway ETC, then researched on RFID technology, established the city ETC system based on RFID, it greatly improves city vehicle management efficiency, prevents manual vulnerabilities, promotes the city automation construction.
Method for Hazard Analysis of Chemical Process Equipment Taking Domino Effect into Account
Authors: Chen Ming Liang , Geng Zhi Qiang , Zhu Qun Xiong
Published: June 2013

The hazard of chemical process equipment consists of two parts: the inherent hazard of process equipment and the hazard from domino effect among equipments. The inherent hazard of equipment depends on the properties of the substance present in the equipment and the specific process conditions. The domino effect is responsibility for many most destructive accidents in the chemical process industry. However, domino effect is either not considered at all or is done with much less rigour than is warranted. A method was proposed to evaluate the hazard of chemical process equipment. The inherent hazard and the hazard from domino effect were considered in the method. The procedure for the domino effect analysis among equipments was presented to evaluate the hazard from the domino effect. The method was implemented in a case study. The results show that it can be used to select the process equipment which should be intensive monitored.
Reliability Estimation for Cold Standby Series System Based on General Progressive Type II Censored Samples
Authors: Shi Yi Min , Shi Xiao Lin
Published: June 2013

Suppose that the life of unit is distributed as two-parameter exponential distribution. The Bayesian estimation for cold standby series system is studied based on general Progressive type II censored samples. Under the different error loss, the Bayesian estimation of the unknown parameter and reliability function are derived where hyper-parameters are estimated by using Maximum likelihood method. At last, a numerical example is given by means of the Monte-Carlo simulation to illustrate the correctness and feasibility for the method proposed in this paper.
Research of the J2EE-Based Workflow Management System
Authors: Tian Wei , Kang Hao , Wang Ming Qian
Published: June 2013

To overcome the deficiency of descriptive ability, cross-platform ability and interaction in existing workflow system, this article proposes an interactive workflow management system based on J2EE technical. The system uses hierarchical description's method to simplify the workflow model, supports the visual modeling, and has the good interaction. The practical application shows that the system has obvious advantages on enhancing descriptive power, reducing the modeling complexity, strengthening model interactivity ability and cross-platform ability.
Research and Application of SVG Technology on the Water Injection Well Based on the Data Management Platform
Authors: Yang Dong Li , Wang Jing Long
Published: June 2013

This paper introduces the concept and function of the Scalable Vector Graphics (SVG). According to the basic principles of the drawing palisade connected graph, the method of drawing the palisade connected graph is finally achieved in consideration of such key technologies as the number and connection of the layers, as well as how to eliminate the hidden lines, and by employing the water injection wells data. Furthermore, it also shows how to realize the zooming and dragging of the palisade connected graph through the SVG technology. Ultimately, combined with the data background of Daqing No.2 Oil Plant water injection wells, this article illustrates the implemented effect of the palisade map.
Performance Test and Fault Prediction in Cloud Computing Platform
Authors: Wei Li Hao , Ai Jie Qing , Wang Tian , Zou Hong , Zhou Kai Dong
Published: June 2013

Performance test and fault prediction is the core challenge in building robust cloud computing platform. This paper converted fault prediction problem into a machine learning problem. Based on extracted software feature, software faults were predicted using support vector regression machine. Experimental results show that new method can improve the precision of fault prediction.
Data Warehouse Oriented Data Integration System Design and Implementation
Authors: Wang Xiao Guo , Shen Jian , Sun Chuan
Published: June 2013

Considering the difficulty of information collection and integration due to the rapid growth of information, we need an efficient tool to do these jobs. A proposal is be put forward to build a data integration system to collect the source data and preprocess the heterogeneous data and then convert/extract data to the data warehouse. Through experiment and analysis, this paper designed an information process flow and implemented the data integration system, based on B/S framework with the database technology, to deal with the college related information.
Automatically Generated of Large Sports Games Voluntee Management Enlightenment
Authors: Dong Yan Ling , Ji Qiang
Published: June 2013

Volunteer management is large sports games get a key element of success. This article through the literature data method, interview method and logical analysis, the characteristics of volunteers and the particularity of the large sports games was analyzed, With the success of Beijing Olympic Games volunteer management experience, put forward the large sports games volunteer management should stick to effective recruitment, multiple training, it is with the person this, dynamic adjustment, Multidimensional incentive, meet the demand, mutual equality, unity cooperation principle, with its large sporting events for the future volunteer management to provide the beneficial reference.
A Image Watermarking Resisting Geometrical Attacks Based on EBCOT Algorithm
Authors: Ge Wu
Published: June 2013

This paper, proposes a method that by generating a pseudo random pattern, which will work as the watermark and the watermark is embedded during the quantization procedure. Then WSR (watermarking survival rate) is used to search for the optimized truncation points by running the EBCOT process, the truncation point is adjusted to stay at the bit plane boundary and it is used as the dividing point to split magnitude bits of wavelet coefficients, which is then sent to EBCOT for encoding. The final output is the J2K coded watermarked image. The results show that watermarked EBCOT image is nearly rate-distortion optimized, the decoder can recover the original image, the watermark can be detected effectively, and it is robust against geometric attacking such as rotating attack, cropping and scaling attack.
Video Watermarking Algorithm Based on DCT and SVD
Authors: Hu Ji Chao , Huang Hong Yan , Liang Ai Hua
Published: June 2013

This paper presents an original video based on DCT (Discrete Cosine Transform) and SVD (singular value decomposition) algorithm combined adaptive watermark embedding algorithm. Algorithm will first split the video stream into different scenes, each frame of the discrete cosine transform, and its singular value decomposition of the DC coefficient; the original watermark image and after scrambling algorithm using singular value decomposition singular value sequence, and finally watermarked image. Experiments show that the algorithm meet the invisibility requirements also meet the robustness requirements, efficiently against attacks as frame dropping, Gaussian Noise and Compression attack.
Large Longitudinal Magnetoelectric Effect in Clamping Structure of TbDyFe Flake, Pb(Zr,Ti)O3 Ring
Authors: Liu Jing , Li Xiang Yang , Ye Xiao Peng
Published: June 2013

Longitudinal magnetoelectric (ME) effect has been studied in a clamping structure of a magnetostrictive TbDyFe (Terfenol-D), a piezoelectric Pb(Zr,Ti)O3(PZT) ceramic ring. The ME coupling originates from the magnetic-mechanical-electric transform of the magnetostrictive effect in Terfenol-D and the piezoelectric effect in PZT by endpoint bonding, without adhesive layer. In such a clamping structure, Large induced voltage was measured without amplifier, Large longitudinal ME coefficient of 0.12V cm-1Oe-1was obtained at f =1 kHz, which is about 3 times larger than transverse ME coefficient of conventional layered Terfenol-D/PZT composites under the same measuring conditions. The ME coefficient reaches a maximum value at the dc bias magnetic field (Hdc) =280 Oe, which is lower than Hdc =350 Oe in conventional layered composites. The results show that large ME coupling can be achieved without adhesive layer, and longitudinal ME effect can be better than transverse ME effect.
Study on the Shielding Effectiveness of a Metallic Rectangular Enclosure with Four Square Apertures having Different Position Arrays
Authors: Zhou Chao , Tong Ling
Published: June 2013

In this paper, electric field shielding effectiveness (SE) of rectangular enclosure with four apertures illuminated by vertical polarization plane wave has been studied by using modal method of moment technique. Electric field SE of enclosure with four square apertures has been calculated at three different points on the same plane inside enclosure. The numerical results of the proposed technique are in very good agreement with data available in the literature and experimental results. It is shown that apertures’ position and aperture’ number have noticeable effect on the electric field SE.
Architecting Large Scale Wireless Sensor Networks Publish/Subscribe Applications: A Graph-Oriented Approach
Authors: Dong Biao
Published: June 2013

This paper presented a approach, called GOHM, for modeling and implementing the architecture of large scale wireless sensor networks(LSWSNs) publish/subscribe(Pub/Sub) applications using a graph-oriented hierarchical model(GOHM). Considering the scalability of topology which was necessary in the LSWSNs, a sparse hierarchical graph(SHG) was defined based on the hierarchical topology model. The simulation indicated that SHG provided low mean-latency at high throughput for transmitting messages. The results imply that SHG can easily be constructed, while ensuring good scalability.
Natural Gas Pipeline Commissioning Displacement Nitrogen Injection Capacity Calculation Study
Authors: Kun Huang , Shen Kun Rong , Xian Yan
Published: June 2013

The article use the software of FLUENT to simulation nitrogen gas and natural gas section at different working conditions during the displacement course for commissioning of the pipeline. Then，use the MATLAB to analog data three-dimensional fit，the length of gas mixture segment can be calculate. According to the actual situation at the scene，give the formula a correction range. The formula of the nitrogen injection is based on the formula of the length of gas mixture segment. Drawn proven，consistent results with field data. The formula can meet the demand for pipeline safety commissioned. Research results to obtain reasonable assurance as to provide a theoretical basis for nitrogen injection.
An Algorithm Mixed Turbo Codes with Rake Received in Fading Channel
Authors: Wang Jin Peng , Kang Li , Li Ping , Zou Nian Yu
Published: June 2013

In this paper, how to analyses the downlink performance of the cellular system combining with site diversity operation and antenna diversity is introduced first. On the basis of Gaussian approximation of the interference components, the changes of bit error rate (BER) in the given set of channel is expressed in receiving signals. By using the Monte-Carlo numerical method, the local average BER is then calculated through comparing the conditional BER with the given set of channel gains. The outage probability is considered to measure the distribution of the local average BER and the downlink capacity. Computer simulation results are discussed finally.