bluuebunny/crossref_metadata_2025 huggingface dataset:
Computer Simulation of the Subwavelength Design for Different Characteristic Equations
Authors: Fan Tai Zhi , Zhao Xing Xing
Published: August 2013

The subwavelength focusing lens usually can not focus on the preset focus. There are many factors leading to the errors, and one of the most important factors is the choosing of the dispersion relation. In this paper, different dispersion relations are studied and the applicable conditions are found for both the period characteristic equation and the MIM characteristic equation in designing the focusing lens. A focusing lens with long focal depth is designed according the applicable condition and the accuracy of the design is verified by the simulation of FDTD method. It is believed that this study will provide useful information for further designing of the subwavelength lens.
Parallel Modeling and Simulation Environment for C4ISR System
Authors: Liu De Sheng , Guo Jing
Published: August 2013

C4ISR system is the core and base for improving the fight ability of SoS based on information system. Modeling and Simulation (M&S) is an efficient method to study on the C4ISR system. In order to meet the requirement for higher simulation performances due to the complexity and incessant development of the C4ISR system, and support parallel modeling and simulation to research on the design, analysis, assessment and application of C4ISR system, a parallel modeling and simulation environment is designed based on high performance computer. The architecture of software and hardware, system constructure and main application pattern are described. Practices proved that the environment solved the problem of complex models and large computing for C4ISR simulation system, and could be used in similar complex simulation system.
Research of Parallel Artificial Bee Colony Algorithm Based on MPI
Authors: Hong Ying Sen , Ji Zhen Zhou , Liu Chun Lei
Published: August 2013

Artificial bee colony algorithm is a smart optimization algorithm based on the bees acquisition model. A long time for the search of the artificial bee colony algorithm, in this paper we propose a parallel algorithm of artificial bee colony algorithm (MPI-ABC), with an application of a parallel programming environment MPI, using the programming mode of message passing rewriting the serial algorithm in parallel. Finally, this paper compare both serial and parallel algorithm with testing on complex function optimization problems. The experimental results show that the algorithm is effective to improve the search performance, especially for high-dimensional complex optimization problem.
Attribute Reduction Algorithm of Incomplete Dicision Table Based on Conditional Entropy
Authors: Xu Zhang Yan , Zhang Wei , Fan Yan Ying
Published: August 2013

The search of the attribute reduction algorithm of rough set in incomplete decision table is a research hot spot. Though analysis of the advantages and disadvantages of the existing attribute reduction algorithms,we put forward a definition of relative discernibility matrix base on the positive area. Then we compute the tolerance class with the the idea of cardinal number sorting method, giving a quick heuristic algorithm of attribute reduction with theconditional entropy and relative discernibility matrix, which of the time complexity is in the worst case. The test result shows that the algorithm can obtain an attribute reduction efficiently.
A Keypoints of Fingers Detection Method Based on K-Medoids Clustering and K-Vector Algorithm
Authors: Hong Duan , Cai Kun Yu
Published: August 2013

The paper presents a calculation method to get the probable key points in hands outline. First, use K-vector to calculate the K-slope of all points in outline and get a series of peak point sets. Then, cluster the peak point sets which have been obstained by K-medoids algorithm and get the location of every fingertips and probable points; At last, distinguish the fingertips and webbed points by vector cross product operation. The experiment shows that this method achieve the precise positionong of the fingertips and finger webbed points.
A Multi-Point Source Thermal Radiation Model of Pool Fire
Authors: Zhou Jian Feng
Published: August 2013

The hazard of pool fire is mainly thermal radiation damage. In this paper, a multi-point source model of pool fire thermal radiation is proposed. The thermal sources are the particles constituting the flame which is established by incorporating particle system with Monte Carlo method. A study case of gasoline pool fire is simulated by this model, and the radiation results evaluated by this model are compared with those evaluated by the traditional point source model and the measured data.
A Frequent Item Sets Computing Algorithm Based on MapReduce
Authors: Jin Da Wei , Song Jie , Liu Bin , Zhao Cheng
Published: August 2013

Traditional method mining for association rules between items in large and grand data sets is inefficient. In this paper we present an efficient method called BPMRA which is based on mapreduce and partition. We have compared BPMRA algorithm based multi-node and partition based single node method and performed some experiments. It turns out that BPMRA possesses high parallelism good stability and scalability, especially suitable for mining for association rules in large and grand data sets.
The Research of Wide-Area Network Dynamic Voltage Stability Evaluation Based on PMU
Authors: Teng Yun , Li Yong , Li Yan
Published: August 2013

Phasor Measurement Unit (PMU) can provide dynamic data for voltage stability analysis, and realize the online real-time voltage stability analysis and evaluation. This paper construct a simulation model of power network operation in the region based on the regional power grid. Find out the weak nodes of the grid based on sensitivity analysis, maximum power analysis, put forward the PMU Optimal allocation scheme. Use the PMU data to finish the simulation assessment in multiple nodes voltage stability, presented a theory method for dynamic voltage stability evaluation of wide region electric power network.
Design and Implementation of Gobang Online Game Based on MFC Socket
Authors: Lin Yu Man , Rao Hao
Published: August 2013

Currently Gobang online game is not perfect, the most important problem is the man-machine play and online play can not be implemented together. In order to solve the problem, a Gobang online game was developed which could be not only a man-machine game, but also an online game. The message mechanism was designed to manage messages from network. And the overall system architecture and the main algorithms were described accordingly.
Research on Basketball Flight Simulation Based on the Video Data Analysis Technology
Authors: Qin Yun Fei , Zhong Hong
Published: August 2013

The shooting average of basketball is closely related to the shoot angle of basketball players and flight trajectory. Therefore, in the process of peacetime training, only by having a full understanding of basketball's flight path can we help the basketball players better adjust the shoot angle and improve the shooting average of basketball. Thus it can increase the training quality of basketball athlete. Based on this, this paper records the flight path of basketball by combining with the basic theory of aerodynamics in the process of basketball movement, taking advantage of 3 d image analysis technology and HD video recording equipment. Finally, based on Visual c ++ software image segmentation techniques, this paper analyzes the basketball flight data. And then according to the analysis results, various parameters of the basketball trajectories are successfully captured in the process of basketball player's shooting. Moreover, the curve is also obtained which is influenced by the basketball flight distance and athletes' shooting angle. Thus, it provides a reliable theoretical basis for the technical development and training of excellent basketball athletes.
A Verifiable Ring Signature Scheme Based on Multivariate Public-Key Cryptosystem
Authors: Wang Ling Ling
Published: August 2013

Most existing verifiable ring signature schemes are based on traditional PKCs, which cannot resist future attacks of quantum computers. Fortunately, the MQ-problem based Multivariate Public-Key Cryptosystem (MPKC) is an important alternative to traditional PKCs for its potential to resist future attacks of quantum computers. In this paper, we proposed a construction of verifiable ring signature based on MPKC, which has the properties of consistent, unforgery, signer-anonymity and verifiability.
Analysis of Damping Components of Roll Resistant Specific Hydraulically Interconnected Suspension System
Authors: Wang Yu Long , Zhang Bang Ji , Zhang Nong
Published: August 2013

This paper presents a full-car model of vehicle fitted with roll resistant specific HIS system in order to research the coordination of the main modals of sprung mass. Based on the transfer matrix method and state space method, the mechanical and hydraulic coupled multi-body dynamic equation is derived. The eigenvalue and eigenvector is solved by eigenvalue iteration identification method of frequency-dependent characteristic. By discussing the characteristic of the damping components which are the dominant parameters of the coupled system, an innovative design approach of damping components of the HIS system is proposed. Finally, comparison of vehicle vibration is carried out between vehicle with traditional suspension and that fitted with roll resistant specific HIS system. The obtained result indicates that with the proposed design approach of damping components, the roll resistant specific HIS system can promote the capacity of anti-rollover specific observably with reasonable comfort performance.
Situation and Countermeasure Research of Government Website Performance
Authors: Zhu Xiang Hui , Zhang Jing
Published: August 2013

This paper emphatically probes into the effective procedures of the electronic government affairs achievements appraisal on the analysis of the domestic and foreign electronic government affairs achievements appraisal experience. It discusses the main problems that electronic government affairs achievements appraisal faces at present in our country, and aims at the existing problems and degree of development of information in our country. It puts forward some proposals for the electronic government affairs achievements appraisal, to carry on the electronic government affairs achievements appraisal objectively, scientifically and effectively.
Visual Basic and SolidWorks Based Development of Design System for Trellis Screen Protective Device
Authors: Guo Yi , Zhao Chen Xia
Published: August 2013

[Purpose] To solve problems for lack of the design system for the trellis screen protective device, a general-purpose design system is required to perform structural design and make budget on materials required. [Method] Visual Basic and SolidWorks redevelopment technologies are used to develop this design system, where the user interface and dimensions of parts can be used to update 3D models for parts and assemblies; also, budget can be made on materials required for making the device. [Results] This system is proven to be able to greatly improve the design quality and efficiency. [Conclusion] This system has combined update of 3D models and material budget and will provide reference for other design systems in aspects of design flow and design methods.
Design of a Web-Based Supporting System for Home-Centered Infant early Intervention Program
Authors: Liu Chun Hua , Wang Kai Yan
Published: August 2013

Substantial literature indicates that it is necessary that infants receive early intervention services to improve long-term outcomes after birth. The effectiveness of parents as agents of intervention in the childs home environment is gradually realized. However, there a significant gap between the intensive service requirements for low-birth-weight (LBW) infants because the intervention requires intense one-on-one supervision by highly trained care givers. Based on web technology, we developed a supporting system to inform and teach parents in the early intervention of high risk infants. Results show the web-based training as a promising method of early intervention helps these caregivers in their practice of caring the high risk babies and may help overcome problems associated with the critical shortage of neonatal professionals.
Research on the Digital Marketing Theory Based on Web Technology
Authors: Chen Guang
Published: August 2013

The emergence of Web 2.0 concept means that new media development of Internet has entered a new stage. With the continue update of network technology, there are more and more people contact network. With the improvement of economic condition, there are more and more people contact network. The dependence on network is growing. The network hides huge market. Through network research and mathematical statistics, this paper finds that the expected invest of online advertising of U.S. in 2013 is up to 82%. So for the web digital marketing theory there is great significance. This paper establishes the marketing profit maximization model based on profit and Internet marketing investment theory of the web. It also introduces a simple case of marketing advertising through the form of web programming. It also concludes the influence of web network on different consumer groups in the market by case analysis.
The Practice and Analysis of Software Agile Development of Information System
Authors: Wang Hua , Li Xian Yu , Wang Xue Ning , Zhang Li
Published: August 2013

Based upon the synopsis of software agile development, this paper describes the basic contents of agile development, and then puts forward Revised XP Model outline development flow and phase product. Meanwhile, development policies and further works are presented. This will benefit the software agile development of information system.
A Web Load Testing Method Based on Performance Target
Authors: Yu Li Li , Zhao Xia , Ye Chao Hui , Yu Li Jie
Published: August 2013

With the purpose of acquiring the Web system to work correctly under the guidance of software requirement, load testing is one of the important approaches. In this paper a web load testing based on performance target is proposed. Then several key points of achieving the load testing based on LoadRunner are discussed. At last combining a case study about the information management system software, Web load testing automation is achieved and testing results are analyzed.
Research on Security Policy for Linux
Authors: Wang Hong
Published: August 2013

Linux is a comparatively safe operating system. This paper makes a research about the security policy for Linux, analyzing the principle and design idea of its identification and authentication mechanism, access control mechanism, Capability mechanism and security audit system. In this paper, the disadvantages of Linux system are pointed out and an improvement program is indicated so that the security performance of this system can be more effectively strengthened.
FC Network Clock Synchronization Error Analysis and Solution
Authors: Ping Wang Jin , Jing Wen
Published: August 2013

The clock synchronization is the foundation of other applications in the FC network to support the avionic system. This paper briefly elaborates the clock synchronization in the fabric topology which is widely used in FC. According to the implementation of the clock synchronization, the paper emphatically analyzes the error sources and influencing factors existed in the processing of the clock synchronization, moreover, puts forward the solutions for the corresponding errors. Finally, an example is provided to show the consequence of the error analysis.
Virtual Patching Containment Strategy of Internet Worm Modeling and Analysis
Authors: Yao Yu , Sun Wei , Li Shuo , Gao Fu Xiang
Published: August 2013

Worms can spread quickly through the network and infect large number of vulnerable hosts in the initial stage causing great loss. The worms are tested and revised for many times aiming at avoiding being detected and eliminated by the security products, and the security software cant be updated immediately for the reason that it costs time to build the new patching before the patching is released. However, the virtual patching strategy can protect the vulnerable hosts from the attacks of the worms before the security products release the new real patching. A new propagation model of worms with virtual patching strategy is thus proposed in this paper for the first time. Through the analysis of the corresponding worm propagation model, its stability condition of worm-free equilibrium point is obtained. And through the numerical analysis, the effectiveness of the virtual patching strategy is shown. This model is more consistent with the actual situation of the worm propagation, and the virtual patching strategy will provide a new insight into the modeling of computer virus propagation.
Weapons Combat Capability Evaluation Based on CAS
Authors: He Xin Hua , Wang Qiong , Chen Geng Shen , Guo Qi Sheng
Published: August 2013

Combat capability evaluation of weapons and equipment system is crucial to develop, scheme, manufacture and use weapons and equipment system in the future. This paper proposed a new frame base on CAS which can aim at the whole emergence of weapons and equipment system. It is proved that this method is effective by an example of XX destroyer combat capability of weapons equipment system.
The Publication and Registration of Composite Services Based on Petri Net
Authors: Ma Bing Xian , Xiang Dong Ming , Yuan Ran
Published: August 2013

in order to achieve the publication and registration of composite services, a new method is proposed based on Petri net with semantic markups. It mainly includes composite services process orchestration, composing web services and choice structures, executable planning, information registration, and so on. In addition, its corresponding platform has also been developed, which will further verify the effectiveness of this method.
On Link Density and Network Synchronization in Scale-Free Network
Authors: Liu Wen Wei , Wang Dan
Published: August 2013

The relations between link density and network synchronizability based on scale-free weighted networks is investigated. In this work, it shows that synchronizability of networks Type I decrease along with the increases of link density, when the netwrok size is fixed. While the synchronizability of networks Type II is remarkable decreased by enhancing the link density with different network size.
Research on the Multi-Carrier Generation of WDM-ROF System and its Application Analysis in Smart Grid
Authors: Li Wen Jing
Published: August 2013

In this paper, we proposed the multi-carriers generation scheme for WDM-ROF and explored the typical applications in smart grid. The result and the analysis show that the WDM-ROF is one of the promising technologies to satisfy the new requirements in smart grid. It can realize high-speed, huge-capacity communication by converging wired and wireless technologies. It will enhance the whole communication performance in the power communication system.
How to Apply E-Commerce in Furniture Enterprises
Authors: Zhang Wei Mei , Zhang Qiu Mei
Published: August 2013

In the modern information society, e-commerce enables furniture enterprises and individuals that master information technology and commercial rules to employ all sorts of electronic tools and network in a systematic way and to engage in all kinds of commercial trade activities that are realized with the electronic mode with high efficiency and low costs. In order to better develop e-commerce, furniture enterprises should make an analysis of demands on e-commerce and define the goal, guarantee of organizations, go on Strategic planning, evaluate its effect.
Researching about Performance of Archiving History Data Based on XML under Hadoop
Authors: Zhang Yan
Published: August 2013

Analyzed radical problem of historical data archiving in date warehouse, presented applying XML into archiving. Arithmetic of structuring level direct graph was provided. The arithmetic of mapping from data base structure to XML Schema based on level direct graph was implemented. In the meantime, the ways to describe all level elements, including base element, table element, recorder element, field element and relation ship between them, were provided. The experiment results are showed that the method is efficient.
An Innovative Practice Study on TOPCARES-CDIO Based Talent Nurturing Framework for E-Commerce Courses
Authors: Xu Jian Hua , Yang Hao Lei
Published: August 2013

The innovative CDIO educational framework provides students with an education stressing engineering fundamentals set in the context of Conceiving - Designing Implementing - Operating real-world systems and products. The acronym of TOPCARES refers to 8 first-level ability indices which comply with those in CDIO. A total of four ability indices levels was refined in TOPCARES-CDIO structure to guide this study, which discussed the feasibility an innovative talent nurturing framework for e-commerce courses. The result suggests the application-oriented integrated educational system to satisfy the social requirements for versatile and practical talents, and can be used as a reference model for relevant educational institutions.
Research on the Model of Business English Translator Training Based on DRM Control Model
Authors: Zhan Yong
Published: August 2013

With the development of economic globalization, the cultivation of business English Translators should follow the principle of compound talents training mode and improve the overall quality of the talent of business English translators. Business translation training plan has shortage of teaching content and lacks cross-cultural communication training program. Its teaching mission objectives is not new and business professional competence of teachers are not enough and the teaching method is too traditional and curriculum is unreasonable. Based on this situation, the paper does the digitization DRM solutions using the DRM digital control program based on multivariate intelligent teaching reform program of talent training. This paper establishes and develops the ODRL talent model and achieves the segmentation description and dynamic segmentation authorization of tasks and contents of business English translation courses. It also achieves the secondary development of DRM under the ODRL control model and verifies the feasibility and reliability of the translators training mode using the teaching effect evaluation method of OpenAPI , which provides a reliable theoretical basis for the reform of business English training model.
Traffic Measurement between Peers in BitTorrent-Like Networks
Authors: Tang Hong , Hu Wen Ke , Zhao Guo Feng , Yan Yu , Xing Cong Cong
Published: August 2013

Our understanding for the traffic behaviors on P2P networks is, unfortunately, still incomplete in the sense that the current studies on traffic measurement primarily focus on the traffic in large, and insufficient efforts have been devoted to the investigation of the inter-peer traffic. Toward resolving this issue, we in this paper propose and implement a method for measuring the traffic between any individual peers. Through deploying this measurement method on the PlanetLab platform, traffic data are collected and analyzed in the following aspects: data correctness, Poisson property, traffic self-similarity of individual peers, and traffic self-similarity of the BT system. Results of these analyses suggest that the proposed method is feasible, effective, and can be extended to larger networks.
Test Paper Generating Algorithm Based on Potential Weaknesses of Knowledge Points Mined by Association Rule
Authors: Le Yin Huang , Yang Man , Wu Min
Published: August 2013

According to the problem that the flexibility and efficiency are not high of the current test paper generating system, applying data mining to figure out the inter and intra connection among all the knowledge points of CET-4, mining association rules, and picking out as more potential weaknesses of knowledge points as it can, then selecting items corresponding to the weaknesses and generating a user-level specific suitable test paper. Experiments show that the new test paper generating algorithm (TPGA) based on association rules response intelligently and quickly to different user levels, and provide an essential improvement in test paper generating process for users own good to enhance their exercise results.
Optimization of Object-Based Knowledge Mesh Structure Based on Time Performance
Authors: Pan Hui , Wang Tao
Published: August 2013

To optimize the structure of enterprise information systems, this paper deals with a new approach to optimize the structure of object-based knowledge mesh (OKM) based on time performance, which is the formal representation of enterprise information systems. Firstly, the relationships between knowledge points are discussed, and time performance of knowledge point relationships is discussed. Then, the representation of knowledge point construction based on the binary tree is proposed, which solves the coding problem of optimization. And then, based on the improved immune genetic algorithm, the structure of OKM is optimized. Finally, the new approach is exemplified and verified, and the optimized the structure of OKM is obtained, which lays the foundation for performance optimization of enterprise information systems.
A Complete Performance Evaluation Indexs of Survivable System
Authors: Sun Tao , Zhao Guo Seng , Su Yn , Liu Hai Long , Wang Jian
Published: August 2013

This paper provides a complete performance index for survivability from the aspects of index content, attack phases and evaluating standard, proposes a framework for performance index which can present the survivability, and formalizes the index system. On the basis of which, abstracts the mathematical model of index system, analyses and validates that the proposed index system has the features of standardization and completeness. This research is significant to quantitative evaluation for information systems survivability.
GSA: An Integrated Analysis System for Gene Sequence
Authors: Huang Yu , Wang Jian Yong , Hu Bing , Wei Xiao Mei
Published: August 2013

According to the analysis for gene sequence, various data analysis as well as a variety of software and tools needs to be integrated, also the friendly graphical interface is a must. Based on this, we propose to build a software tool named GSA (gene sequence analysis tool) which is Java-based J2EE environment based on workflow. This tool provides a unified data, algorithm interface and visualization graphical interface, not only integrates a variety of sequence analysis algorithms, but also to achieve the integration of heterogeneous data. The workflow mechanism of GSA provides a collaborative research solution for the field of sequence analysis.
Research on the Stability of the Position Servo Motor Control System Based on DSP
Authors: Zhang Jian Jun
Published: August 2013

in this paper, a very low cost two-axis position servo system is developed. This system is controlled by DSP. We study the stability of the position servo control system. We use the PI control algorithm in our application. We achieved twice switching frequency by using PWM signals to share the switching dissipation ePWM module of the DSP. A numerical consideration is given. The simulation results demonstrate the stability of the proposed method.
Data Mining with BP Neural Network Algorithm Based MapReduce
Authors: Cui Jian Ming , Ye Yan Xin
Published: August 2013

Traditional massive data mining with BP neural network algorithm, resource constraints of the ordinary stand-alone platform and scalability bottlenecks and classification process serialization due to classification inefficient results, and also have an impact on the classification accuracy. In this paper, the Detailed description of the flow of execution of the BP neural network parallel algorithm in Hadoop's MapReduce programming model.Experimental results show that: the BP neural network under the cloud computing platform can greatly shorten the network training time, better parallel efficiency and good scalability.
Impact of PV and Battery Storage on the Power Supply Reliability
Authors: Liu Hong , Wang Long , Wang Sai Yi
Published: August 2013

The impact of PV and Battery storage system on the power supply reliability of distribution network is great. Firstly, the assumptions of the battery storage operating strategy are given, and four typical evaluation indexes are presented. Then, the impacts of different PV peak active power, different battery capacity and PV & Battery Storage on the power supply reliability are discussed. Finally, the impacts of PV, Battery and PV & Battery on the power supply reliability of distribution network are compared and analyzed. These results are provided as references for the optimal capacity configuration of PV & Battery.
Detection Method and Control Strategy of Active Power for Wind Farm Connected into Grid
Authors: Tian Chun Guang , Li De Xin , Cai Li Xia , Dong Tian , Han Xiao Juan
Published: August 2013

As one of main clean energies, wind power has been developed fast, but the fluctuations of active power at a wind farm is a huge challenge for the grid system, thus it is essential for wind farm connected into grid to detection the active power. This paper studied control strategies and detection methods of the active power at a wind farm. Simulation results showed the effective detection of active power at a wind farm can improve the characteristics of the grid and the ability of wind farm to regulate the grid and increase the scheduled ability of wind farm.
Control and Simulation of Spacecraft's Attitude Control Based on Quaternions
Authors: Song Xu Min , Chen Yong
Published: August 2013

The large attitude maneuver is studied in this paper. The quarternion form attitude is appilied to avoid the singularity of dynamic equations, and sliding mode control law based on quarternion is desined. The spacecraft attitude dynamics and control model is builted using simulink, which was valided by simulation.
Influence of AC System Strength on Voltage Stability of DC Receiving-End Power Grid
Authors: Liu Xiao Ming , Niu Xin Sheng , Xiao Jun Li , Zhang Jie
Published: August 2013

The AC system strength at DC receiving-end exerts great influences on the voltage stability of power grid. The selected DC control modes and reactive power compensation mode should fit with the AC system strength at receiving end. This paper analyzes the influences of AC system strength at DC receiving-end on voltage stability of power grid from the point of mechanism, and conducts simulations based on Shandong power grid.
The Simulation Research of the Effect of Distributed Generation on Voltage of Distribution Network
Authors: Liu Guan Qi , Shao Long , Hu Ting
Published: August 2013

When the Distributed Generation (DG) access to the distribution network, it will have great impact on the distribution network. In order to reduce the impact, through the research of distribution network accessed with DG, I summarize a set of feasible operation scheme, which can improve the security and economy of distribution network. In this paper, IEEE33 notes distribution network is used as an example. I build the model of distribution network with SIMULINK. By changing the capacity and location, I study the impacts on voltage of distribution network. On the basis of a large number of simulation examples and experimental data, I summarize several principles we should comply with.
A Novel SVPWM Algorithm for Three Level Inverter Based on Pan-Boolean Algebra and United Voltage Modulation
Authors: Zhou Qu , Chen Jin , Chen Guan Ling
Published: August 2013

Neutral point clamped three-level inverter has widely application in high voltage power conversion systems because of its simple topology. Due to this reason, lots of SVPWM algorithm for three level inverter finds particularly growing. In this paper, a three level SVPWM algorithm based on Pan-Boolean algebra and the United Voltage Modulation Technology is presented. The algorithm eliminates the massive trigonometric function calculations in the conventional SVPWM algorithm for three-level inverter. The simulation model is established in MATLAB. The results show that the new algorithm is feasible and easy to be digital realized.
Design of On-Chip Debug System Based on IEEE Protocol
Authors: Li Lei
Published: August 2013

with the integrated circuit design and manufacture process of development of integration complexity rise, chip, chips more and more is also high the testability has become the research difficult and hot problems. At present, according to the design of debugging system pieces is many, but from the module design idea, based on TAP module and debug JTAG with module presents a brand-new debugging system, for our research ideas for reference.
Design of Pre-Amplifiers for Photoelectric Detector
Authors: Ren Ming Yuan , Tian Li , Wang Wei , Liu Xiao Wei , Mao Zhi Gang
Published: August 2013

This paper presents the design of low noise CMOS pre-amplifiers based on photoelectric detection systems, which can directly affect the detecting precision of the whole systems. The design of pre-amplifier circuit from photoelectric detector was introduced. The photoelectric conversion circuit, amplifier circuit bandwidth, amplifier circuit noise, amplifier circuit stabilization and other questions were mainly discussed, and an amplifier circuit capable of effectively decreasing the noise, the temperature drift and a large dynamic range was designed. This paper analyzes the sources of photoelectric detection circuit internal noise, and gives the formulas of internal noise, designs a variable equivalent load photoelectric conversion circuit, and is verified by experiments. Then the result is used to reduce the noise of CMOS based operational amplifiers and finally implement the design work of pre-amp using 0.5μm CMOS Technology.
High Performance FPGA Implementation of Floating Point Addition
Authors: Yang Hui Jing , Yu Fan , Han Dan Dan
Published: August 2013

Addition is the most frequent floating point operation in modern microprocessors. The design of floating point addition is relatively complex than other flotation point arithmetic operations. Due to its complex shift-add-shift-round data flow, floating point addition can have a long latency. This paper has shown an efficient implementation of addition module on a reconfigurable platform cyclone IV EP4CE15, which is both area as well as performance optimal. The proposed design has optimized the individual complex components of adder module (like dynamic shifter, leading one detector (LOD), priority encoder), to achieve the better overall implementation. Comparison with the best reported.
A Reliability Simulation Method for On-Board Computer
Authors: Zheng Lei , Huang Ying , Liu Dong , Xing Wei Yan
Published: August 2013

As high reliable equipment, on-board computer often has difficulties to evaluate its reliability. The paper put forward a simulation method to compute on-board computers reliability. The method uses a forced transition (FT) based reliability simulation model to deal with the on-board computers that have complex structure and diversiform characteristic parameters. The model is particularly suitable for the on-board computers which are composed of the components whose failure processes obey tub life curve. As an example, a prototype on-board computer was put forward and simulated using the model. The presented reliability simulation model can be adopted for the on-board computer probability risk assessment where analytic methods or exact solutions cannot be easily reached.
Design of Timing System Based on Electronic Design Automation
Authors: Zhu Yu Xin , Zhang Yi Chi
Published: August 2013

Timing system is widely used in plenty of fields. This paper introduces a method to use PLD programmable devices to design a timing system which has been optimized and then become especially suitable for humans listening habit. The design circuits and simulation waveforms are shown in the paper. The simulation results show that the design is practical and easier to implement.
A System of Computer Optimization Control for Catalytic Cracking
Authors: Chen Jing
Published: August 2013

in the process of refining petroleum, the gasoline-final boiling point and the steam pressure 10% point, which are major indicators of gasoline quality, can not be real time measured online. This paper introduces the designing thoughts and the realization method of computer optimization control for gasoline quality as well as its reliance on the coupling of parameter identification and on-line simulation for modeling. Also includes the techniques of comprehensive evolution of multi-optimal strategies. By means of soft-meter [1] monitoring and optimizing techniques, along with setting up the dynamic mathematics model of gasoline-final boiling point online, the complicated technologies of computer monitoring and optimal controlling of gasoline quality for the catalytic cracking unit can be carried out.
Active Low Pass Filter Design Based on Chaos Theory
Authors: Chang Jing , Feng Yan Fang , Li Wei Feng
Published: August 2013

The circuit in this paper is an effective solution to interference and noise of input signal during data acquisition and the circuit designed is based on an active low pass circuit with output frequency from 0~100Hz. The low pass circuit consisted mainly of an OPAMP TL084. Chaos theory is applied in this active nonlinear filter.The designed circuit is analysed by Matlab simulation software and the simulation results show the method can effectively improve effects of the filtering circuit.
Research on Model Checking for SELinux Inter-Process Communication
Authors: Wang Ning , Gong Sheng Wen , Wang Huai Xiao
Published: August 2013

SELinux (Security Enhanced Linux) inherited the basic design of LINUX, and it is a high secure operating system. It is important to know how to make the IPC (Inter-Process Communication) for this kind of multi-task and multi-user system. In this paper, Finite State Automaton is used to verify the security of IPC mechanisms of SELinux. Finally, IPC mechanisms are verified with SPIN model checker.
Study on Remote Sensing Faults Information Extraction in Eastern Kunlun, NW China
Authors: Zhou Xiao Hu
Published: August 2013

Choosing the junction of Altun-Kunlun orogenic belt as the anatomical area of extracting complex texture and structure information from remote sensing images, make full use of multi-band remote sensing images to reflect the characteristics of the properties, to extract hidden information through image processing. Analyzing the structure elements by geological body, rock combination, linear and banded structure, penetrative and non-penetrative planar structure, folds, to carry out the surficial composition and structure research of the the junction of Altun-Kunlun orogenic belt, identifying different geological bodies, the fault zones, ductile shear zones, superimposed folds and different strain zones, the different types of foliation, clarifying the characteristics of multi-source remote sensing image from the angle of the image processing methods, proposing new remote sensing image extraction methods and recognition of structural information technology and new understanding of the regional geology.
Improve of the ATDD in Cognitive Radio Wireless Network
Authors: Pu Bin
Published: August 2013

The radio spectrum is limited, but in urban and rural areas some bands of radio spectrum are idle in most of the time. Some bands of radio spectrum are occupied occasionally. On the other hand, some bands are excessively used. This paper propsed an adaptive time division Duplex (ATDD) technology to effectively improve the transmission delay in the large range ,such as the rural network in 802.22 network.
Initial Timing with Cooperation of Distributed Receive Antennas
Authors: Qing Chao Jin , Wei Jin Cheng , He Zi Shu , Tang You Xi
Published: August 2013

To improve the accuracy of initial timing, an estimation method with the cooperation of distributed receive antennas is proposed in this paper. In the cooperation area, we consider two distributed receive antennas to receive the signal transmitted from the MS over the flat Rayleigh channels. The prior information of coverage region from each distributed receive antenna is firstly exploited to form a precondition of cooperation. Then we derive the threshold detection method based on the precondition. With the proposed method, the simulation results show that the probability of correct estimation for each distributed receive antenna is improved.
Association of Polymorphism rs1333049 with Risk of Gout
Authors: Wang Qing Yao , Yang Hui Yong
Published: August 2013

Background: Several independent studies have previously demonstrated an association of some polymorphisms in 9p21 locus with coronary risk disease. So this study aimed to evalute whether the SNP rs1333049 in 9p21 locus influenced susceptibility of gout which has been described as a risk factors for coronary heart disease. Methods: One case-control study was performed consisting of 20 healthy participants and 20 patients with gout. Statistical analysis was performed by software SPSS 16.0 afer genotyping with AS-PCR method. Results: The the cases and controls were in conformity with the Hardy-Weinberg law. The genotypes and alleles in this site was no diffence between the cases and the controls. Conclusions: The number of samples is critical for statistical analysis. It is necessary to study larger samples to get small infinite errors in results.
Key Technology on Decision Support System for Urban Water Supply Pipe Network Emergency
Authors: Liu Wei Xue , Ren Yong Chang
Published: August 2013

Urban water supply pipeline emergency accident in such aspects as occurrence, development and evolution is uncertain, it is necessary for different stages of emergency situation carries on the scientific assessment, decision support systems to aid decision making. Based on auxiliary decision-making problems in DSS, research its key technologies. First of all, from the knowledge acquisition, interpretation, presentation and reasoning of DSS system structure research; Then the FCR reasoning algorithm, through the fuzzy knowledge reasoning rules, cases, fuzzy knowledge reasoning part done between different library calls and internal reasoning to solve; Finally, the system development of the MVC architecture, and expounds its advantages. The study content of this paper to form a relatively complete city operation and management system, to deal with emergencies ability to water supply network, raise the scientific nature of the emergency management system is of great significance.
Study the Effects of Electromagnetic Fields on Micrococcaceae
Authors: Yang Gui Juan , Zheng Xin Yi , Zhang Dong Sheng , Wang Ying
Published: August 2013

In order to study the effects of electromagnetism on micrococcaceae, in this paper, micrococcaceae was treated by electric field of different intensity and magnetic field of the different intensity, at the same time, the optical density and pH of micrococcaceae with treatment were determined to compare with those of untreated samples. Results showed that the growth rate of micrococcaceae can be improved by electric field from 0.5V /cm to 2.5V/ cm and magnetic field from 4mT to 10mT, and, 1.5V/cm for electric field and 8 mT for magnetic field is the optimum treated parameters.
Research for Swing Heating Furnace Temperature Optimization System of Plate Roller-Hearth Normalizing Furnace
Authors: Li Jing , Wang Qiu Shi , Liao Hua Chen
Published: August 2013

In recent years, with the continuous improvement of the quality requirements of the plate heat treatment, the swing heated gradually become the focus of attention of many researchers. Based on the above considerations, in this paper, we established the furnace temperature pre-setting system, using the intelligence algorithm of improved PSO, under the premise of swing heating of roller-hearth normalizing furnace; and studied the optimal furnace temperature optimization curve, namely the optimal furnace temperature system, under the heat treatment process of the swing of the whole furnace and steel mixed. Through the Matlab simulation, we obtained the steel Temperature Prediction curve under the optimal furnace temperature system. By comparison, verifying the accuracy of the researched optimal furnace temperature optimization curve.
A New Titanium-Based Heusler Alloy
Authors: Feng Lei , Wang Fei , Gao Ju , Fan Yu Gang , Deng Xue Nan
Published: August 2013

The Heusler alloy system is a rich source of functional materials. We studied the ternary alloy Ti2NiSb by first-principles calculations to explore for new functional alloy. We performed geometry optimization for the alloy with Hg2CuTi-type structure and the obtained equilibrium lattice parameter is a0=6.21 Å. The magnetic moments of atom Ni is 0.22μB in one cell. The alloy is a ferromagnet. The little magnetic moment of atom Ni comes from the characteristic spatial occupation of the atoms in the space structure of the alloy.
Seagull in Wind Turbine Airfoil Blade Design Application Bionic
Authors: Xin Hua , Zhang Chun Hua , Zhang Qing Guo , Wang Ping
Published: August 2013

Wind energy is an inexhaustible, an inexhaustible source of renewable and clean energy. Present due to the energy crisis and environmental protection and other issues, the use of wind more and more world attention. The wind turbine is the best form of wind energy conversion. Wind turbine wind turbine blades to capture wind energy is the core component of the blade in a natural environment to run directly in contact with air, with seagulls wings generate lift conditions are similar, so the gull wings airfoil and excellent conformation, with wind turbine blade design designed by combining the bionic blades. Through numerical simulation analysis found bionic blade aerodynamic performance than the standard blade aerodynamic performance has improved.
Research of Shielding Effectiveness of Metallic Experiment Box Based on ModalMethod of Moments
Authors: Xia Gui Shu , Zhou Chao
Published: August 2013

In this paper, electric field shielding effectiveness (SE) of metallic experiment boxwith aperturesilluminated by vertical polarization plane wave has been studied by using modal method of moment technique. Electric field SE 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, aperture number and calculation points have noticeable effect on the electric field SE,four apertures is a better select to improve the shielding ability of an enclosure than one aperture while they have the same area.
Research on the Finite Element Method of Reinforced Concrete Member in Bending Oblique Section Bearing Capacity
Authors: Li Ke , Zhang Li Hua
Published: August 2013

With the development of computer science and technology, computer hardware and software conditions have been improved greatly, which can make the finite element analysis of complex structure possible. Reinforced concrete is one of the most commonly used components in building structure, the study of reinforced concrete mechanics is mainly compared through the experiment, however finite element analysis of oblique section stress is not much, based on the theory of combining elastic-plastic mechanics, using ANSYS structure analysis software carries out the analysis of numerical simulation for the oblique section stress of reinforced concrete. Through the stress-strain numerical simulation curve, this paper can get the maximum load of oblique section without corrosion reinforced concrete frame that is0.03N/mm2, finally this paper will choose three different corrosion degree of the reinforced concrete members are to carry on the analysis of numerical simulation, and compared with experimental results, the results prove the reliability of numerical simulation, to provide a reliable basis for the mechanical study of reinforced concrete inclined section.