bluuebunny/crossref_metadata_2025 huggingface dataset:
A Targets Detecting Approach in the Dynamic Background
Authors: Wang Wei , Li Yuan Lei , Zhang Lian Feng , Wang Ping
Published: November 2012

The level set method (LSM) is one of the methods used frequently to get the precise contours of the targets when the background is dynamic. In order to use the motion information and improve the processing efficiency, an adaptive level set method (ALSM) is proposed. In this approach, the particle filter algorithm is used to track the targets, so we get the rough external contours and their centroids. Then the level set curve evolution is performed to get the precise external contours of the targets. Lastly, the detection results are fed back to the tracking frame to revise the updating regions. The experiment results show that the proposed algorithm can adapt to the motion variations of the targets, and distinguish the targets.
Signals Modulation Recognition Based on Efficient Attribute Reduction with Neighborhood Rough Set
Authors: Han Ying Zheng , Wu Juan Ping , Liang Xiao Fang
Published: November 2012

The purpose of communication signals automatic modulation recognition is to judge signal modulation styles and estimate signal modulation parameters on the precondition of unknown modulation information. According to the seven kinds communication modulation signals studied in this paper, select a group of feature parameters based on the time-frequency characteristics of communication signals. The fast algorithm for attribute reduction based on neighborhood rough set using feature selection is introduced in detail. Then, using back propagation network as classification instruments to identify signals. The simulation shows that the method can not only reduce the number of feature parameters, but also improve the recognition rate.
ELECTRE Method Based on Interval-Valued Intuitionistic Fuzzy Number
Authors: Li Jun , Lin Min , Chen Jian Hua
Published: November 2012

A new multi-criteria decision-making method for interval-valued intuitionistic fuzzy number is proposed by the advantage of intuitionistic fuzzy set and ELECTRE method. Firstly, the possibility-degree and deviation-degree of interval number are used to establish the preference relation of interval-valued intuitionistic fuzzy number. Then, we exposit the decision theory and the steps of this method. Finally, a numerical example is given to illustrate the application of the method. The numerical results show that it is feasible and effective.
An Integrating Method for Information System Based on CCM
Authors: Zhang Jian , Huang Kun , Wang Lu
Published: November 2012

With the rapid development of computer technology, various distributed-component technologies are emerging. CCM specification, which has the features of independent of platforms and development languages, complete model, standard protocol and interface, has been widely recognized in computer industry. In this specification, the reuse of software is achieved through assembling. Its openness and extensibility makes it especially suitable for the integration of large-scale information system. Based on the introduction of CCM specification and information system integration, proposes the application of CCM specification to information system integration, and describes the integrating method from four aspects of integration framework, hierarchy structure, development process, and operation characteristic.
Sensitivity Analysis of Scheduling Solution for Manufacturing System
Authors: Yang Jian Hua
Published: November 2012

Data experiments are performed to investigate sensitivity of scheduling solution when disorder occurs due to human participation or other uncertainty in manufacturing system. Benchmark problems are adopted to demonstrate possible variations where entropy approach is introduced to evaluate sensitivity.
Parallel Solutions for Node Connectivity Based Mesh Moving Methods on Different Parallel Architectures
Authors: Ma Wen Peng , Lu Zhong Hua , Hu Xiao Dong
Published: November 2012

Methods for updating the computational mesh have been studied for many years and there are mainly two kinds of mesh moving algorithms known as node connectivity based and no node connectivity based respectively. As the node connectivity based mesh moving methods are universal for both structured and unstructured mesh but of high computational cost at the same time, detailed attentions are paid to in this paper to balance its advantages and disadvantages. The format and the features of the derived linear equations in node connectivity algorithms are analyzed firstly and the choice of solver for these equations are considered subsequently. Finally, parallel models for node connectivity algorithms on different parallel architectures are proposed to accelerate these algorithms. Experiments have also been accomplished to match up the analysis procedures.
The Developing of Algorithm for Learning Programs in the Adaptive Learning System
Authors: Liu Chang Ming , Jia Xin Yu , Sun Yan Jun
Published: November 2012

With the computer technology and network development, application and promotion has led to a tradition of educational philosophy, methods, teaching strategies, models of major change. Internet and education as the core power to promote the development of social and economic, and will be profoundly changed the history and destiny of a nation. The emergence of adaptive learning system base on network, making the learning is no longer affected by time and space restrictions, and the teachers’ teaching mode is changing to students' learning mode. This paper focuses on the learning program to develop algorithms, though this algorithm can make "personalized learning" into possible.
Study on Information Systems Development and Structural Optimization of Agricultural Products Multimodal Transportation
Authors: Wang Wu Gong , Ma Rong Guo , Wang Jing , Dong Qi
Published: November 2012

Achieving scientific decision-making and information sharing of agricultural products multimodal transport is critical to enhance the management level of agricultural transportation. Based on the advantages of agricultural products multimodal transport, this paper makes an analysis of the decision-making and information systems development of agricultural products multimodal transport, which leads into the embedded GIS technology to study information structural optimization of agricultural products multimodal transport. Studies have shown that embedded GIS can improve the agricultural products multimodal transport activities and its logistical support capabilities, so as to provide important quantitative basis for achieving accurate protection of agricultural products multimodal transport under conditions of informatization.
Artificial Glowworm Swarm Optimization Algorithm for Solving Multi-Objective Constrained Optimization
Authors: Luo Qi Fang , Gong Qiao Qiao , Zhou Yong Quan
Published: November 2012

Focused on the disadvantages of some current constrained optimization algorithm, glowworm swarm multi-objective optimization algorithm ( GSMOA） is proposed in this paper. The main character of this algorithm conforms to feasibility rules and adapts self- adaptive penalty function to search feasible solutions. This algorithm has been tested on 4 standard functions and it shows that the proposed algorithm has more advantage in the convergence rate and the solution precision.
A Production Capacity Management Platform Using M2M Horizontal Integration Technology in Connector Industry
Authors: Lin Yu Fan , Luarn Pin , Kao Chang Yi
Published: November 2012

In this research, we proposed a management system platform to improve production capacity. By use of the machine to machine (M2M) information communication technology (ICT) and the network control and management technology, the mechanism aims to establish a set of well integrated schemes capable of controlling the entire production process from sources of raw materials to end products and building a product resume system as well as a load balance communication system for factory zones. To create a production capacity tracking system for each factory zone by use of the M2M information communication technology management platform to facilitate the tracking of production capabilities, achieve the load balance, and keep a complete record of the production resume.
Video Clips Classification with Hierarchical Approach
Authors: Wang Wei , Li Yuan Lei , Wang Ping , Zhang Lian Feng
Published: November 2012

Clips classification, Hierarchical tree, low-level descriptors. Video sections Abstract. In this paper, we propose an approach with hierarchical tree for clips classification in broadcast soccer video. In this method, video frames are firstly classified and grouped into sections, and the sections are divided into clips. Then we can use the low-level descriptors to classify the clips. Low-level descriptions include color, motion descriptor and edge descriptor. Experiments on real soccer video programs show the encouraging results.
The Researching on Evaluation Analysis Model about Student's Study Quality Based on Web
Authors: Wang Yuan Qiang , Hao Shang Fu , Wang Zhi Hui , Sun Bai Li
Published: November 2012

With the development and formation of networked and digital campus, the characteristic of diversification and complicated have been founded in student’s learning behavior. At the same time, for more broad application of web technology, promoted the ascension of teaching effect and reformation on education teaching method. In this paper a new evaluation analysis model about student's study quality based on web was proposed, and in this model, and in this model the correlation analysis algorithm has been used to verified the danamic relationship between analysis model and student performance, with the description of core technology in this model the validity and practicability of teaching quality monitoring process in the level student was proved.
The Analysis of Different Head Shape’s Projectile Penetration Characteristics
Authors: Sun Jun Wei , Zhang Ya , Zhang Dong Mei
Published: November 2012

By using the ANSYS/LS-DYNA software, to get trajectory map, overload curve of projectile penetrating and depth curves after doing numerical simulation of projectile oblique penetration course targets at head shape of 30 ° and 60 ° cone angle, and also in parabolic separately. The simulation results summarize the law of motion and motion characteristics of projectile head shape, when it obliquely penetrates into the soil, which puts forwards some references for projectile designs.
Large-Scale LOD Adaptive Terrain Rendering
Authors: Yu Wen Long , Zhang Li Min , Zhang Bing Qiang
Published: November 2012

The data structure is the form of quad-tree in this paper. The terrain node's LOD evaluation function is given through comprehensive considering the three factors which are the static error of the terrain block ,the screen space dynamic error and visual perception based on the premise of visual acuity. The smooth transition factor is used to eliminate the phenomenon of popping in the GPU vertex shader. The idea to join the skirts is used to eliminate cracks between terrain blocks. The experimental results show that the algorithm can reflect the terrain LOD levels through the fluctuant of terrain and the visual perception intensity so that the terrain has a better adaptability while increasing frame rates and rendering realistic.
The Realization of the International High-Speed Private Network Based-on HS-TCP Protocol in the Fusion Research
Authors: Lin Ling Long , Song Yun Tao , Yang Qing Xi , Cheng Yong , Wu Shu Qin
Published: November 2012

In order to facilitate the exchange and cooperation for the fusion research, we proposed the high-speed special network environment to achieve the design, research of the program and manage the project contracts, schedule, video conference system and data sharing. The article states the network acceleration mechanisms based-on the HS-TCP protocol and proposes a kind of data encryption based-on AES and SSL and describes the framework of the special network. Then we have verified the feasibility and security of the project by the experiment.
Digital Modeling and Movement Resolution of Rubber Band Analogy for 2D Packing Problem
Authors: Ma Jun Yan , Liao Xiao Ping , Lu Juan , Yao Hong
Published: November 2012

Packing problem is how to arrange the components in available spaces to make the layout compact. This paper adopts a digital modeling algorithm to establish a novel rubber band convex hull model to solve this problem. A ray scanning method analogy QuickHull algorithm is presented to get extreme points of rubber band convex hull. A plural vector expression approach is adopted to movement resolution,which calculate the resultant vector to translate, rotate and slide the subbody to make the volume decrease. An experiment proved this digital modeling algorithm effective.
Remote Experimental Teaching and Learning Platform Based on Internet
Authors: Li Hui , Zhang Jing
Published: November 2012

Remote experimental teaching and learning platform is a modern information technology platform which is based on network communication technology, embedded technology and network technology and so on. It can use Internet to monitor and control the remote production process or experiment process. In this paper, a remote experimental platform is introduced including software design and hardware design of tank level control system. The control scheme of tank level control system and two results to expected values have been proposed.
High Accuracy of Finite Element Method for a Class of Nonlinear Hyperbolic Integral Differential Equation
Authors: Liu Xiao Qi , Chen Hong Bin
Published: November 2012

The hyperbolic integral differential equations are widely used in practical problems of heat conduction,nuclear reactions dynamics, viscous elastic mechanics, biomechanics, the pressure in loose medium with memory materials. We shall study a class of nonlinear hyperbolic integral differential equation in this paper. Using finite element method, we obtain some superconvergence results.
Peano Space Filling Curve Applied in Managing P2P Service Resources
Authors: Shao Yi Chuan , Yao Xing Jia , Tian Li Wei
Published: November 2012

According to the deficiency of Chord algorithm supporting single keyword query only, a P2P framework-Peano Chord (PC) by combining the Peano and Chord is proposed for managing service resources, which combines Peano space filling curve and P2P Service Resources and supports DHT-based multi-keyword query and approximate query by means of Peano index to improve resources searching ability.
Research on Construction Methods for Network Covert Channels Based on HTTP
Authors: Zhang Ran , Gan Yong , Yin Yi Feng
Published: November 2012

Network covert channel is a steganography technology that uses network traffic data as a carrier to transfer the secret data. This paper analyzes the working principle of network covert channels, and summarizes the commonly used construction technology of network covert channels. Then it analyzes the characteristics of the HTTP header lines and gives some methods of constructing network covert channels with these characteristics. Network covert channels based on the HTTP header lines are simple, flexible, and difficult to be detected and shielded.
Classification of Student Achievement Using ID3 Algorithm
Authors: Jiang Ming Hua , Luo Xiao Suo
Published: November 2012

In this paper, ID3 Algorithm in Decision Tree is introduced and used to sort computer operation achievement, give useful information to students and teachers.
Network Traffic Prediction Model of the New Elman Chaotic Neural Network
Authors: Dang Xiao Chao , Hao Zhan Jun , Li Yan
Published: November 2012

Considering such characteristics of the network system as nonlinearity, multivariate, and time variation, proposes a new improved Elman neural network model ------SIMF Elman. Seasonal periodicity learning methods are introduced into the learning process of the model. Chaotic search mechanism is introduced in the training process of the network weights. This new model uses the ergodicity of the Tent mapping to optimize the search of chaos variables, reducing data redundancy, and providing effective solution to the local convergence problem. Experimental tests of backbone network egress traffic of a certain university are conducted. The experimental results show that the new model and new algorithms can improve the network training speed and prediction accuracy of network traffic.
The Research on Optimization Neural Network Structure Parallel Genetic Algorithm
Authors: Yu Ming Yan , Yan Ying , Liu Hai Yuan , Zhi He Cai
Published: November 2012

This paper combines the global optimization ability of the symbiotic parallel genetic algorithm and the local optimization ability of the improved LMBP algorithm to research,proposes an neural network structure optimization symbiotic parallel genetic algorithm and to testify the correctness and validity of this algorithm by the simulation experiments. This algorithm realizes unequal length coding, large probability cross, small probability variation, cross and variation between sub-populations, information exchanging between sub-populations etc, and successful implements the optimization of neural network structure. The experimental results shows that this algorithm having reliable performance, searching a large space, be able to find the feasible solution within the specified generalization and approximation error range.
An Effective Load Balancing Algorithm for Structured P2P Networks
Authors: Fan De Ming
Published: November 2012

In DHT based P2P systems, various issues such as peer heterogeneity,network topology, and diverse file popularity, may affect the DHT system efficiency. A new load balance algorithm, static load distribution algorithm and dynamic load adjustment algorithm (SDDA) is proposed, SDDA is designed based on the concept of virtual server, The new algorithm can dynamically adjusts Address-Space and fairness workload for each node after measured it’s capacity. Through research and simulation analysis, compared with the traditional virtual server load balancing algorithm, the SDDA algorithm is with better load balance, faster velocity of load balancing, less load movement cost, and more excellent stability of P2P system.
An E-Kanban System for Fork Truck Assembly Lines
Authors: Hu Rong , Gao Fei , Gong Cheng
Published: November 2012

Because there are many in-process material stocks in current fork truck plants, kanban theory was employed to solve the problem. First, a business logic of the e-kanban system, which consists of ERP system, production plan configure system, e-kanban config & auto-collect system, routers, delivery points, LED control card and e-kanban screen, was described. Second, a control logic model of the e-kanban system was investigated. Third, arithmetic of data collection was presented. Finally, the e-kanban system is put in practice in a fork struck plant.
Development of On-line Computer Maintenance Management System for Plastic Injection Machine
Authors: Tangjitsitcharoen Somkiat
Published: November 2012

To realize the maintenance management system in the near future, this paper presents a development of on-line computer maintenance system to manage and record the maintenance information in the database for the plastic injection machines by utilizing the computer networks via the wireless system. The on-line computer maintenance management system is friendly use and easy to check the equipment problems, the production wastes and the production efficiency via the mobile phones and also the computer networks. Whenever a malfunction happens, the alert message will be sent to the operator and the maintenance manager to respond it immediately. In addition, the developed energy management function by selecting the heater insulator and reducing the mold clamping pressure can help to calculate the energy consumption, the breakeven point and the payback period which have not been done in the computer maintenance management system. The developed program can automatically generate the next schedule of the preventive maintenance, which leads to the higher efficiency. The developed system is examined and implemented in the plastic injection machines, which have never been used the on-line computer maintenance management system. It has been proved that the proposed and developed system increases the overall equipment effectiveness about 6.42% and the mean time between failure of 37.17% while the mean time to repair decreases approximately 16.26%.
A Method for Traffic Collision Detection
Authors: Yin Dong , Zhang Fan , Wang Kun
Published: November 2012

This paper presents a detection method for traffic accident in real-time video images. Firstly, according to improved average background model, frame difference method and edge detection technology are used to detect vehicles. Secondly, vehicle tracking is accomplished by matching the distance, area and histogram of the same vehicle in next frame. Finally, using the concept of collision area and key point as pre-qualification, the situation of vehicle collision will be accurately detected by prior knowledge and histogram information. The experiments results show that our method is effective.
Location Analysis and Simulation of one Kind 4D Stereoscopic Gaming Platform
Authors: Fu Jing Shun , Zhao Xing Yu , Ren Zhong Wei
Published: November 2012

The Institutions of 4D interactive three-dimensional game is essentially a three degree of freedom parallel mechanism. This papers start from introducing 3D of parallel structure, then analyzes a two-rotation a translation of the three degrees of freedom motion simulation platform, by changing the length of the three scalable support this platform achieves the specific position and orientation of the simulation platform. By the institutional characteristics, it deduces the inverse solution of the agency's position, then according to the anti-solution of their mathematical formulas, using MATLAB to simulate and analysis its trajectory, verifying the correctness and practicality of the agency model.
Exploration of a Calculation System of Drawing Quantity with "Read Schemata"
Authors: Wang Xing Ji
Published: November 2012

To solve the problem of "reliablity", calculation scope and the high thresholds in the operation of the graphics automatic calculation quantity system in the practical use, "read schemata" graphics calculation quantity technology is analyzed. This technology has the features of direct visualization, clear presentation, no requirement for memory in work, revisability, meeting cost engineer’s work habits, low threshold in operation, wide application scope, easy proofreading and so on. The axis module algorithms and information structure are given. The experimental results show that this method is effective, feasible and superior to other graphics quantity calculation system. Finally, further research problems are presented, such as the structure of knowledge base, calculation rule set and so on.
Compression of Multi-Resolution Terrain Data Based on Binary Tree
Authors: Bai Jian Jun , Yan Chao De
Published: November 2012

In order to overcome the incontinuity and redundancy of data storage caused by the grids in representing the multi-resolution terrain, an adaptive hierarchical triangulation based on binary tree is used to represent the multi-resolution terrain model. It realizes the representation of the terrain data at different levels of detail and enables data compression by local omission of data values. The structure of binary tree is stored using a bit code of the underlying binary tree, while the height data are stored using an array, and relative pointers which allow a selective tree traversal. This method realizes the continuity and reduces the data volume in data storage of multi-resolution digital elevation model (DEM), and it is possible to work directly on the compressed data. We show that significant compression rates can be obtained already for small threshold values, and in a visualization application, it is possible to extracted and drawn triangulations at interactive rates.
Book Subscription System Design in High School Based on Web Technology
Authors: Gao Shu Lan
Published: November 2012

Library is the information center of high school. With the development of high education in China, the construction of library is of great importance in high school. Since the knowledge of all kinds of subjects increase dramatically in nowadays, the book subscription has become a heavy task in the library. The recent manual works for book subscription in many schools have not met the requirements from different departments of them. Hence, a book subscription system is designed based on Web. In this system, the active sever page technology is used, together with the structure query language sever database system.
New Ideas for the Development of Undergraduate Management Information System
Authors: Yan Qing Qing , Wang Quan Biao , Shen Rui , Yang Ya He , Hu Yuan
Published: November 2012

This article aims at the difficulties of the undergraduate management. In terms of the comparison of the system of undergraduate management information and the growth records portfolio system, it summarizes the advantages and disadvantages of the two systems and makes best use of the advantages and bypasses the disadvantages. It can be integrated a new growth records portfolio according to information technology. The effects were shown up in undergraduate management according to the practice of this system. This system sets up a platform of personality and brilliance, and the effectiveness of management was improved. This system makes a significant attempt for the management of undergraduate.
A New Registration Method for Mixed Augmented Reality Environments
Authors: Shi Xiao Yan , Wan Tao Ruan , Tang Wen , Zhu Yao Lin
Published: November 2012

In augmented reality applications, one of the challenging tasks is to solve environment registering using only partial information of the targeted environments or physical features. We propose an improved method to solve the problem. Our vision based method estimates the relative camera pose between two calibrated views, combining marker points with environmental physical features to increase the effectiveness and the accuracy of the registration process. Experimental results show that our approach can recover the 3D structure information of actual scenes effectively, and the system developed satisfies the requirement of augmented reality (AR) applications successfully.
Research on Fire Disaster Fire-Fighting Simulation System of Large-Long Tunnel
Authors: Cao Shou Qi , Han Yan Ling
Published: November 2012

The large-long highway tunnel provides advantaged condition for highway traffic, at the same time, it also become bottleneck and accident point of the highway. Relative to the highway outside the tunnel, tunnel inside belongs to semi-closed environment and the drive condition is relatively poor, it makes tunnel become velocity bottleneck. Because of uncirculated air in tunnel and all kinds of deleterious gas let by vehicle, it is easy to result into traffic jam and secondary disaster. Large-long tunnel system is a complicated system integrated with many-sided theory and technology, such as traffic, detection and environment, and so on. The traffic flow in tunnel has unrepeatable characteristic. By building traffic flow model, fire disaster and environment model in the paper, the fire-fighting response mechanism, the action process and the realization technology in the condition of fire disaster are researched in emphases. It provided use for reference for the engineering building of Large-Long tunnel, the layout and design of fire-fighting establishment inside tunnel and the running management mechanism of tunnel.
The Cluster Analysis of Multivariable Panel Data and its Application
Authors: Niu Jin Hu
Published: November 2012

The research on statistical analysis of multivariable panel data is a blank in China. The paper tries to do the basal study on cluster analysis of multivariable panel data. This paper firstly analyses the numeric characteristic and constructs anew the distance function of multivariable panel data and the function of sum of squares. On this base, the paper explains the arithmetic and process of cluster analysis. At last, an experimental analysis is done on productive efficiency of the industrial enterprises in China.
Usage of IEC Standards for Distributed Control Systems Modelling
Authors: Bezak Tomas , Stremy Maximilian
Published: November 2012

When creating distributed control systems, we can choose one of two possible approaches based on IEC 61131 and IEC 61499 standards. The first of them has been used for a long time in the PLC sphere, but it does not directly support the creation of extensive distributed systems. The second of the standards, IEC 61499, offers a direct solution for distributed system creation. The truth is that it is a new standard, which is why it is supported by only a few device manufacturers. This raises the question of which approach and which standard is more effective and suitable for individual system designing.
An Integer Programming Optimization Model of Container Shipping of Sea-Carriage
Authors: Wang Bin , Yang Tao
Published: November 2012

The paper dose research about the optimization of container shipping of sea –carriage for meeting the goods transport requirement by use of integer programming. Both laden and empty containers are combined into a system. In particular, the effect of special laden container shipping capacity on the shipping plan is investigated. In the model, the objective function is to maximize the total profit of container shipping. The profit caused by laden container shipping minus the cost caused by both laden and empty container shipping equal to the total profit. The constraints to the model include meeting the need of both laden and empty containers, shipping limit to both common and special laden containers , the number of empty container supported. Lingo9.0 is used to solve the model and shipping methods in varied parameters are shown by simulation. The aim of the paper is to provide a reasonable plan of container shipping of sea-carriage, so the container shipping cost of a shipping company can be reduced and the its profit made by container shipping are maximized.
The Impact of Load Reserve Costs due to Significant Installed Wind Capacity in Electricity Market
Authors: Lu Ming , Tan Lun Nong
Published: November 2012

Wind and load forecast error is inevitable. With wind power capacities increasing in electricity systems, it will increase the load reserve demand due to larger total forecast error. In electricity market environment, grid company must pay to power plants for supplying reserve. The first goal of grid company is to maximize its profits in electricity market environment. In this paper, using probabilistic method, the costs of reserve capacity and load shedding are analyzed. we can calculate reserve costs with and without wind power units separately. Comparing their reserve costs, we can quantify the influence of significant installed wind capacity on reserve costs.
Explore Medicine Using Compression and Partial Least Square Discriminate Analysis Method
Authors: Wang Zhuo , Xu Jian Feng , Hu Ran
Published: November 2012

The aim to explore the different medicine have different or similar effect, the paper put forward explore medicine using compression and partial least square discriminate analysis method. First of these to data preprocessing using wavelet compression ,the second to classify and train the sample of medicine based on PLS-DA,the third to discriminate the medicine which unknown type. The result indicate that the different medicine have different or similar effect ,the new medicine may classify based on effect using PLS-DA. The method was proved to be feasible and effective after tested with 8 kinds of medicine experimental data.
Practices of XML-Based Parametric Design and Remote Design
Authors: Zhang Lei , Ding Wen Jie
Published: November 2012

Using XML table as the carrier to data storage and reused calculating for serialization, parameterization, and variation of mechanical parts. Taking the Visual Basic programming tool for secondary development, which has realized the designing style for data loading and data reading of XML table and the driving of the parametric model of mechanical parts in Solidworks. The style realized batch driving for models’ parameters and series, and the application of WEB remote technology realized remote collaborative design and the sharing of model resource. Practice showed, the cooperation of method and the mechanical parts’ model completed products’ structure data of XML table, realized the batch driving of model parameters, enhanced the practical value of the production of the CAD platform, and significantly reduced the workload of parameterized redesign. Model-based reuse and XML table realized the open and scalability for Secondary development of software systems.
Research on Optimization of SQLite Indexing Mechanism Based on Red-Black Tree
Authors: Li Jian Wei , Guo Hong , Xu Yu Bin
Published: November 2012

SQLite has been widely applied in embedded system because of its open source and less resource consumption. A novel optimization method with Red-black tree replacing B tree in indexing mechanism in order to solve the low efficiency and large energy consumption problem when inserting and deleting data in SQLite database was proposed in the paper. The contrast test of efficiency of between red-black tree and B tree while inserting and deleting data shows that this method can effectively improve the SQLite insertion and deletion operation efficiency and reduce the energy consumption.
Numerical Simulation on Comparison of Air Flow Distribution with Different Algorithms
Authors: Xie Jing , Tang Yi , Wang Jin Feng , Miao Chen , Zhao Yue
Published: November 2012

To get the air distribution in a small cold store, a mini type cold store ( 4. 5 m ( l)×3. 3 m (w )×2. 5 m (h) ) was referenced. The model of the small cold store was established in the software named GAMBIT and after this the three-dimensional numerical simulation was used. The different simulation result was verified by the experiments. The accuracy of simulation in airflow field in cold stores was studied by comparison of various mesh rezoning, various decoupling methods for airflow speed and pressure. The results showed that 10cm dimensional accuracy was the suitable mesh size for the calculation speed without affecting the simulation accuracy, and the SIMPLE algorithm was better for the PISQ algorithms to simulate steady air flow of the cooling process in a cold store without products. It was concluded that there was a large circumfluence in the flow field, the speeds in the center and corner were lower than those in other places. The distribution of flow speed in the horizontal plane had a good symmetrical, however that in the vertical plane was lower than that in the center, but higher upwards and downwards. The study validated 3D CFD simulation technology for the small cold store. The results of the research offered the optimized methods of using CFD and acted as the reference of the simulation model in the cold store.
Freeway Traffic Density Control Based on CMAC
Authors: Liang Xin Rong , Man Guo Yong , Li Jian Ye
Published: November 2012

Aiming at the nonlinear and time-variable characteristics of freeway traffic systems, a composition control method based on CMAC (Cerebellar Model Articulation Controller) and PID controller is applied to address the traffic density control problem in a macroscopic level freeway environment with ramp metering. Firstly, the second-order traffic flow model to describe freeway flow process is established. Then the principle of CMAC-PID composition control is formulated, and the learning algorithm is given in detail. Based on the model and in conjunction with feedback control theory, CMAC-PID based traffic density controller is designed. Finally, the controller is simulated in MATLAB software. The results show that this controller designed has fast response, good dynamic and steady-state performance. It can achieve a desired traffic density along the freeway mainline.
Efficient Certificate-Based Blind Signature Scheme without Bilinear Pairings
Authors: Huang Ru Fen , Nong Qiang
Published: November 2012

Blind signature is a well-known cryptographical technique used to construct some advanced applications for the consideration of user privacy. In this work, we propose the first efficient certificate-based blind signature scheme that follows the idea of Certificate Based Encryption (CBE) presented by Gentry in EuroCrypt 2003. The security of our scheme is based on the elliptic curve discrete logarithm problem over a finite field. In addition, our scheme does not require any pairing operations which is regarded as cosely operations compared to other operations. Compared with the other secure blind signature scheme, our scheme enjoys shorter signature length, less running time and operation cost. So it can be used widely, especially in low-bandwidth communication environments such as wireless cooperative networks.
Research on CAD/CAE Information Integrated System Based on Web Services
Authors: Chen Tao
Published: November 2012

The information integrated plan based on Web services was proposed, in view of the informations in current CAD, CAE systems are heterogeneous, distributed and diversity. Combined with the CAD/CAE information integrated system to expound the realization process of Web Services. On the basis of overall analysis of the CAD/CAE information integrated system, provided the framework of information integrated system with PDM functions as the core, which based on Web services technology. The development of CAD/CAE information integrated system based on Web services offerrs a possibility for remote collaboration in a distributed enviorment.
Design and Implementation of IT Operations and Maintenance System for Chinese Universities
Authors: Gao Tian Ying , Zhang Zhi Gang
Published: November 2012

This paper discusses on an IT operations and maintenance system based on Information Technology Infrastructure Library (ITIL). According to the realities of Chinese universities, the system requirements, design and implementation are described. The system adopts a three-tier structure made up of data acquisition layer, data storage layer and application layer, which provides management functions for network equipment, application services, and business systems.
The Compliance Research of RoHS Based on XUL and Java RCP
Authors: Zhou Chuan Hong , Wang Xiao Ning , Shi Hai , Kang Shao Bo
Published: November 2012

According to the characteristics of the electrical and electronic products in the RoHS directive and combines the latest technology of Java-rich client and the development of XUL, this paper made an intensive research through building a software system to control the hazardous substances in electrical and electronic equipment.
MAP Based Super-Resolution Image Reconstruction Method
Authors: He Pan Li , Wang Bo Yang , Liu Xiao Xia , Han Xiao Wei
Published: November 2012

Super-resolution image reconstruction has been one of the most active research fields in recent years. In this paper, a new super-resolution algorithm is proposed to the problem of obtaining a high-resolution image from several low- resolution images that have been sub sampled. In the image registration, the paper puts forward an improved search strategies improving registration accuracy. In the MAP algorithm, the threshold parameters of solving the optimal value, making the estimated value of the optimal high-resolution images, so that the reconstructed image is better. The results of the experiments indicate that the proposed algorithm can not only make an automatic choice of the parameter and get the high resolution reconstruction image expected, but also can preserve the edges and details of the image effectively.
Reinforcement Learning for Routing Strategy Considering the State of Network Link
Authors: Hu Zhao Hui
Published: November 2012

This paper presents reinforcement learning (RL) algorithm for routing strategy considering the state of network link, which can be deemed as a dynamic programming problem with stochastic needs. Through modeling those four elements and experiments, we draw the conclusion that upon the state of network link, RL is an efficient algorithm for routing strategy; the data can be efficient forwarded to the destination.
Modeling of Spare Parts in Multi-Location Inventory System with Unidirectional Lateral Transshipments
Authors: Zhang Guang Yu , Li Qing Min , Li Hua
Published: November 2012

Management of multi-echelon with unidirectional transshipments is an effective approach to improve support effectiveness. Focus on the problem, a system where transshipments are allowed only in one direction is provided. The technique is solved in a simple and efficient heuristic algorithm, and the simulation shows that the model produces accurate estimation. Numerical studies show unidirectional transshipments improves various system performance measures such as the fill rate, the average inventory on hand, and the average backorder level. The suggest method gives a good picture of how considered unidirectional lateral transshipments affect the inventory system, which has large significance for completing inventory theory and supplying decision assistance for a reasonable optimization project.
The Research of Collision Detection Based on OBB in Vega Prime
Authors: Wang Xiao Ping , Dong Xiu Cheng
Published: November 2012

Collision detection in Vega Prime is based on the simple line segment, and collision detection based on bounding box is not realized. By studying the composition of three-dimensional object based on Oriented Bounding Box (OBB), we define a collision detection class, which inherits from vpIsector. After finding out all vertices of geometry in object, we connect these vertices one by one and constitute a tend line. The trend line constitutes our bounding box based on OBB. Now, our collision detection is based on three-dimensional objects, but not the simple line segment. At the same time, we can control the efficiency of collision detection by increasing or decreasing the number of collision lines on the actual demand. Additionally, on this basis, we have made the further application. By adjusting parameter, we can get a bounding box with early warning mechanism or collision tolerance.
Decision Tree-Based Selecting Talents Schema
Authors: Fan Xiao Nan , Wang Shi Min
Published: November 2012

Conventional model in selecting talents cannot satisfy the request for efficient selecting. In this paper, we study a mixture algorithm which is combined decision tree algorithm and analytic hierarchy process (AHP), named analytic hierarchy decision process (AHDP). It evaluates the performance of existing staff then assigns them into distinguished category, and combined the result of AHP method for each staff with corresponding employee information reforms a dataset to construct the decision tree. The motif of AHDP is an enhancement for reasonable prediction talents that enterprise expected.
A Novel Edge Detection Approach Based on Soft Morphological Operations
Authors: Chen Bo , Jia Meng
Published: November 2012

Edge detection and target segmentation is difficult due to noise existing in an image. A novel edge detection method is proposed based on soft morphological operations in this paper. Because soft morphological operations can remove noise while preserving image details, which can be used to construct morphological edge detection operators with high robustness and better edge effect. Experimental results show that, comparing with the existing edge detection operators, the novel edge detection method can get better edge effect while removing pseudo edges.
Frequency Calibration System Design Based on FPGA
Authors: Wang Shu Hai , Chen Shu Wang , Liu Jian Hui
Published: November 2012

With the deepening of human exploration of the entire physical world, the precision of time synchronization is more and more accurate in some special domains. This paper presents using the precise GPS(Global Positioning System) clock function, time synchronization system with high-precision FPGA technology and the method of the direct DDS (Direct Digital Synthesizer) achieving the frequency correction. Frequency calibration system is based on FPGA design of GPS precision timing, frequency calibration, short on time and in-depth analysis on performance of frequency standards. Through the combination of hardware and software, the system function is achieved by using of large-scale programmable logic devices. In terms of the realization of high precision to build satellite timing frequency calibration system, the frequency precision can reach ns level.
Composite Evolutionary Algorithm for Constrained Optimization
Authors: Xie Si Lian , Wu Tie Bin , Wu Shui Ping , Liu Yun Lian
Published: November 2012

Evolutionary algorithms are amongst the best known methods of solving difficult constrained optimization problems, for which traditional methods are not applicable. Due to the variability of characteristics in different constrained optimization problems, no single evolutionary with single operator performs consistently over a range of problems. We introduce an algorithm framework that uses multiple search operators in each generation. A composite evolutionary algorithm is proposed in this paper and combined feasibility rule to solve constrained optimization problems. The proposed evolutionary algorithm combines three crossover operators with two mutation operators. The selection criteria based on feasibility of individual is used to deal with the constraints. The proposed method is tested on five well-known benchmark constrained optimization problems, and the experimental results show that it is effective and robust
Implementation of Ladder Diagram Edit Module of Soft-PLC Based on MDI Application
Authors: Chen Chan Juan , Li Long
Published: November 2012

Abstract. This paper presents an implementation of the Ladder Diagram edit module based on VC multi-document application. The module includes a ladder bitmap data processing, development of the main program interface, and text parameters can be edited, as well as insert and delete functions in the ladder diagram editor module to achieve. The advantage is the use of multi-view characteristics of the MDI application for the system to build a good interface for editing, and editing interface can be directly set and change parameters.
UML-Based Full Function Point Measurement Method
Authors: Ji Chun Lei , Yan Shun Cheng
Published: November 2012

Full Function Point measurement method (COSMIC-FFP) is too abstract and difficult to be applied to object-oriented software. By analyzing the notional relationship between main components of UML and main elements of COSMIC-FFP, we establish 22 measurement mapping rules, propose UML-Based COSMIC-FFP method and list the measurement process and measurement steps. An example is given and the results show that this method can measure the functional size of object-oriented software objectively and effectively.
Hyperspectral Images Terrain Classification Based on Power Transformation
Authors: Liu Jing , Liu Yi
Published: November 2012

In order to make the class distribution be close to Gaussian distribution, a hyperspectral images terrain classification method is presented base on power transformation (PT). Firstly PT is performed to original hyperspectral data to improve the class distribution Gaussianity, and then direct linear discriminant analysis (dLDA) is used to extract features, finally Bayesian classifier is designed in the achieved feature subspace for recognition. Experimental results based on airborne visible/infrared imaging spectrometer (AVIRIS) hyperspectral image show that, with data power transformed, the recognition rate of Bayesian classifier is dramatically improved, and the feature extraction effect of dLDA is enhanced to a certain degree.