bluuebunny/crossref_metadata_2025 huggingface dataset:
Fuzzy Certificateless Identity-Based Encryption Protocol from Lattice
Authors: Zhang Guo Yan
Published: August 2013

Due to their conjectured resistance to quantum cryptanalysis, strong worst-case/average-case security guarantees, ease of implementation and increasing practicality, lattice-based cryptography is one of the hottest and fastest moving areas in mathematical cryptography today.
In this paper, we give a fuzzy certificateless identity-based encryption scheme from lattice, whose security is based on the hardness of the Learning With Errors (LWE) problem. In the scheme, the user can choose his own secret key that the KGC cannot obtain, which is an efficient approach to mitigate the key escrow problem in fuzzy identity-based encryption scheme.
An Improved AODV Routing Protocol for High Moving VANET
Authors: Ding Yuan Ming , Qu Hao , Wang Xue
Published: August 2013

For the problems of the inefficient communication, increscent delay and raised packet loss rate etc. among the nodes caused by the frequent changes of topology in vehicular Ad hoc network (VANET), an improved solution of AODV (Ad hoc On-Demand Vector) routing protocol is proposed using the backup routing mechanism. By modifying the processing of nodes disposing route reply packet (RREP) packets, the source node maintains a routing to the destination node, at the same time it maintains a backup routing and modifies the local repair mechanism. The simulations analyze the performance of AODV routing protocol when the moving speeds of the nodes increase and the network structure changes frequently. The simulation results show that the packet delivery fraction (PDF) increases using the backup routing mechanism which improves the performance of AODV routing protocol.
Research and Application of Web Database Security Technology
Authors: Huang Lin Na
Published: August 2013

With the wide application of Web technology, Web database system is playing an increasingly important role in network application. The storage amount of Web database information is growing, at the same time, the security of Web database has been facing extremely daunting challenges. How to strengthen the security of Web database system has become an important issue of network researches. This paper has introduced implementation techniques of database security, described the sub-key encryption algorithm of database in details, and applied it to the management system of information student.
The Analysis of Traffic Flow Model
Authors: Wei Xiao Wei
Published: August 2013

With worsening traffic condition in large and medium-sized cities, it has become one of the most important steps for the urban traffic strategy to solve the traffic problems. Since the urban traffic is a complex system in various factors and huge scale, to establish related mathematical model through computer numerical simulation is a significant solution to the comprehensive problems of complex analysis, decision and planning. At present researches on the problems have been achieved in many foreign countries, but domestic research is not enough, especially in the practical application. The macroscopic traffic flow model and microscopic traffic flow model are described and cellular automaton model, dual channel decision model and car-following model are analyzed in this paper, prediction of the ideal traffic flow and trip distribution is consequently concluded, which deepen the understanding to the traffic flow of various phenomenon intrinsic mechanism and predict most closely to the actual situation of traffic flow, which can make fundamental work for traffic flow simulation and for real-time traffic control[1-3].
The Test Case Design of the Failure Mode Judgment Software
Authors: Liu Wen Hong , Wu Xin
Published: August 2013

Failure mode judgment software is widely used in the security control system, it always has higher safety critical level than other softwares. Therefore the testing standards for such software must also be improved. In order to solve the problem of the black box testing for such software, this paper establishment the software fault tree based on the software fault analysis, and use the software fault tree as a test case design tree, then design the test case after obtained the minimal cut sets. Meanwhile, this paper establish the test case design tree for the failure mode misjudgment, and use it as the basis in designing the failure mode misjudgment test cases. We developed the test case assisted design tool based on these methods, and successfully use it in the software testing of the escape software.
An Anonymous Mutual Authentication with Key Agreement Protocol for Automobile Roaming System
Authors: Xu Xin , Zhu Ping , Jin Zheng Ping , Zhang Hua
Published: August 2013

Recently, several protocols came into being successively to meet the requirement of efficient operations in low-power roaming environment with the fast advance of communication technologies. Unfortunately, these protocols are not a suitable candidate for special requirements in automobile roaming system such as low consumption, high performance and convenience since these protocols pay more attention to a common network environment. In this paper, we address the problem of mutual authentication and key agreement with user anonymity for an automobile roaming system. More specifically, we propose the protocol employs elliptic curve cryptography system to enhance operational efficiency and take into account common attacks and give corresponding resist measures to ensure security. The analysis shows our scheme is user friendly and secure.
A Locally Exponential Synchronization Criterion for Complex Networks
Authors: Wang Li Fu , Xue Peng
Published: August 2013

The exponential synchronization problem of complex networks is investigated. The complex network model considered is a moving agent network in a two dimensional space and the coupling of between nodes is nonlinear links. In order to achieve the objective of exponential synchronizaiton, linearizing error system is presented. Base on the Lyapunov stability theory, a new criterion is proposed for exponetial synchronization of moving agnets networks under the condition of fast switching. In addition, an numerical example of the Lorenz chaotic system are analyzed, and numerical simulations results show the effectiveness of proposed exponential synchronization criterion.
Research on Security Management Plan for Enterprise Information Systems
Authors: Gou Ru Xin , Lu Ting Jie
Published: August 2013

With the development of computer and network science, enterprises have built lots of information systems for enterprise management, the security management of the information systems if becoming more and more important for most of the enterprises.In this study of information security management plan,enterprises can implement a set of controls based on the controls checklists obtained from risk assesment to achieve information security.
Building of Road Network Topology and the Shortest Path Analysis Based on MapX
Authors: Zhang Qing Ge , Zhang Lu Wei , Yin Xu Ri
Published: August 2013

MapX is an ActiveX control product with powerful map analysis functions offered by Maplnfo Company.Because It does not support the topology of spatial data, the shortest path analysis has become a hot potato for MapX users to develop application systems. In this paper, several key technologies to establish the road topology structure based on MapX are discussed. On the base, an algorithm for finding the shortest path in road network is presented, and experimental result shows that the proposed algorithm is more practical and effective. At last, a brief conclusion as well as the expectation for the further study is made.
Intelligent Substation Construction Program and the Whole Life-Cycle Information Platform Technology Research Based on Internet of Things
Authors: Wang Hong Liang , Cao Min , Wang Da Da , Huang Xing , Zhang Shao Quan , Li Peng
Published: August 2013

Nowadays, collected datas from existed substation are transported to the power supply bureau layer or YunNan grid layer in this way, it will not only cause the information sharing difficulty, but also make the information uninteroperable. While, intelligent substation construction program base on Internet of Things will greatly improve these problems.This paper gives the intelligent substation overall framework based on the Internet of Things makes a detailed introduction to implementation of technology.Finally, the intelligent substation unified information platform is designed based on the whole life cycle, in order to achieve the system intelligent monitoring, intelligent judgment, intelligent management, intelligent verification and so on. Through the unified information platform and experiment, the method is proved to be effective and feasible.
The Optimization for Aircraft Carrier Main Dimensions
Authors: Wang Yu Juan , Huang Sheng , Fang Xin Yue , Wang Gang
Published: August 2013

Based on the model of aircraft carrier "Kitty Hawk", a study on the influence of resistance performance and main elements was carried out. A designer will find out the elements effecting the aircraft carrier designing through its coefficient of Lω/Bω and block coefficient. With the change of coefficient of Lω/Bω and block coefficient improved by the law, the resistances were calculated. The objective of the optimization is to minimum resistance, optimal rapidity, also give a consideration to stability and seakeeping performance, optimizing the main dimensions with the restrictions of flight deck width. The speed of the optimal ship has increased from 32 kn to 35 kn. Compared with the parent ship, the main dimensions of optimal ship decreased while have performance improvement.
Embedded Linux Porting Based on ARM9 Hardware Platform
Authors: Bin Wang , Zhao Rong Yang , Ma Hui Bin
Published: August 2013

On the basis of hardware development platform ARM9,the paper describes the porting of Embedded Linux on ARM9 by constructing cross-compile environment, and ramdisk has been produced as a file system . The experiments and running verify that the system has the advantages of small volume, stable operation, high reliability, and the system is a useful technology platform for developing the further embedded products.
Spectrum Analysis of the Stream Cipher
Authors: Lin Dai Mao , Li Xin , Zhang Lei
Published: August 2013

Classical cryptography theory holds that the true random sequence is better than any pseudorandom sequence on the security of stream cipher. So people prefer the pseudorandom sequence with long-period to the pseudorandom sequence with short-period. In this paper, it is proved through power spectrum analysis that the pseudorandom sequence with long-period cant effectively conceal message characteristics in frequency-domain. To combine the pseudorandom sequences with long cycle and short cycle may be the better encryption key.
A Routing Method Based on Wireless Sensor Network for Smart Meter Reading System
Authors: Wang Zhong Feng , Ge Wei Chun , Wang Ying Nan , Huang Jian Long , Li Li Gang
Published: August 2013

Smart meter reading system is the core of advanced metering infrastructure for Smart Grid. Wireless sensor network is an important means to realize the power information collection. Based on hierarchical strategy, this article proposed a method to establish routing in wireless smart meter reading system. This method provides reliable two-way communication routing, but also greatly reduces the collision probability of network communications. In order to verify the feasibility of the approach, a large number of simulation experiments were carried out. This idea has been applied in actual engineering practice.
IP Core Design of 8253 Based on Quartus II
Authors: Zhang Hai Yan
Published: August 2013

Provided by ALTERA FPGA/CPLD Quartus II development software development platform. programmable timer/counter 8253s functions and internal circuitry as the basis, combined with programmable gate array (FPGA) products FLEX10KE characteristics, using VHDL hardware description language and schematic Figure two ways 8253 for hierarchical, modular, parameterized logic design. The completed design will be configured to the chip of FLEX10KE,and Proved to be correct.
Research on the Micro-Grid Structure in Remote Area
Authors: Zhu Xin , Cheng Si Qi , Xiang Yue , Yan Zhan Xin , Liu Jun Yong
Published: August 2013

Typical micro-grid structure is the foundation of energy management, control, protection and stability of the micro-grid. Combination of the characteristics of the ordinary grid structure, with reference to the characteristics and development direction of the current domestic and overseas micro-network structural as well as the geographical features of the remote region, the micro-grid structure of the remote area is divided into single-family structures in extremely sparse populated areas and multi-family structures in remote villages according to the characteristics of its population distribution. And the control procedure of its running is explained. Besides, this paper emphasizes the agent control using in multi-family micro network.
A New Power Flow Method Solving DG Integrated Distribution System
Authors: Lu Yue Feng , Lin Shao Hua , Zhou Wei , Li Hai Tao
Published: August 2013

With the fast developing on distributed generations (DGs) integrating into distribution system, it changes power flow direction in tree-topology, as a result of which traditional power flow method is not effective for this new scene. It is necessary to make improvement on traditional method in order to accelerate the speed of power flow calculation. Since fast decoupled method is not suitable for system with a high R/X ratio, its need to make compensation for the branches to increase R/X ratio. DGs are integrated into power gird normally by inverter interfaced mode or direct grid-connected mode. In this paper, a new fast decoupled power flow method is proposed which could solve various DGs integrated into distribution network, as well as loop topology of distribution system. The utility of proposed method is tested by simulations of IEEE 69-bus system.
Research on Detection Method of Power Quality for Wind Power Connected to Grid
Authors: Lv Xiang Yu , Chang Xue Fei , Li De Xin , Yuan Ye
Published: August 2013

Owing to the fluctuating and the randomness of wind speed, the influences of large-scale wind power integration on the grid should not be ignored. The output fluctuation of wind farm has serious effect on power quality, causing the problems like voltage flicker and harmonic, it will pose a threat on the safe and stable operation of power grid. This paper mainly analyzed the influence mechanism of wind power integration on power quality and studied the detection method of power quality. The effectiveness of the proposed method was verified by the simulation of real operation data of a wind farm in Jilin Province. The method presented in this paper will provide a reference for the establishment of Chinas wind power testing system and has important engineering significance.
Design and Realization of Battery Intelligent Charging System
Authors: Wang Fu Shun , Sun Xiao Hua
Published: August 2013

Base on the existing disadvantages of the conventional three-stage charging method, the paper provided a intelligent and dynamic Charging ideal with a fuzzy control ideal based on J. A. Mas 's law and the characteristics of lead-acid battery charging. A fuzzy controller design achieved according to the empirical data of charging control and the systems hardware and software realized with PIC6014 microcontroller as the core. Experiments show: The intelligent and dynamic charging systems based on fuzzy control enable the charging current to achieve real-time changes according to the acceptable current size of the battery, enhanced the energy efficiency and avoid over-charge and less-charge effectively, realized efficient, fast and safe charging.
Performance Comparison between HEV with Three Different Battery-Ultracapacitor Systems
Authors: Bi Dong Yang , Yu Yuan Bin , Qu Xiao Dong
Published: August 2013

The Battery-Ultracapacitor System has the advantage of energy and power density, which suit to be used as energy storage system for HEV. This paper did the performance comparison of HEV with three different configurations Battery-Ultracapacitor System in normal and steep driving cycle respectively. According to the results, it summarized the technical advantages and the fitness for HEV of each system.
Design of DVB-S2 LDPC Coder and Decoder Implemented in FPGA
Authors: Sun Jun Wen , Yin Shuang Shuang
Published: August 2013

Full parallel architecture for DVB-S2 LDPC was implemented on the platform of FPGA, in this process, the pipeline technology was introduced, and the method of FIFO and multiple RAM group used at the same time was also used, the problem of storing the parity check matrix was effectively overcomed, and the coding rate reaches 125Mbps. In order to solve the problem of high consumption of resources, the design of decoder adopted serial architecture, the decoding delay was greatly reduced by clever design of interleaver structure, and the decoding throughput reaches 125Mbps, moreover utilization of registers and logic elements is less than 1%.
New Energy Power Generation Process Output Complementary and Coordinated Control
Authors: Gao Ming Ming , Hou Jie , Zeng De Liang , Lei Xiu Jian , Tang Jun , Zhang Ming Sheng
Published: August 2013

in view of the current high rate of abandoned wind, photovoltaic power generation costs and wind-fire bundling mode, in the active power control of the wind of low load operation of motor fluctuations in the fire team leader, the subject in the study of wind power, photovoltaic power generation, power, battery energy storage based on the load response characteristic, design the scheduler, a wind and photovoltaic power plant active power scheduling for equipment, allocation of plant-level optimal load distribution system of the thermal power plant joint scheduling, in order to improve the stability of output of new energy, reduce the energy consumption of the whole network. At the same time, the wind and photovoltaic power plant energy storage system and wind farm output coordination problem is equivalent to a mixed integer programming problem to be solved, to simultaneously determine fans and solar panels and bear the load rate; for thermal power plant load distribution optimization design of the minimum unit involved in strategy reduces the effect of variable load, variable load on set pressure and high temperature parts life. This topic to some extent to improve the wind energy and solar energy utilization, helps to reduce the carbon fuel usage, has certain theoretical and practical significance.
Stochastic Assessment of Voltage Sag Considering the Time Characteristic of Protection System
Authors: Chen Li Pin , Xiao Xian Yong , Qiu Yu Tao , Xiong Qian
Published: August 2013

When fault occurs in power system, the duration of voltage sag is determined by the fault clearing time of the protection system. In order to describe the duration of voltage sag more accurately, the time characteristic of protection system is considered for stochastic assessment of voltage sag. Based on the traditional assessment model, the mapping relationship between the time characteristic of protection system and voltage sag frequency is established using fault positions method. The proposed method is applied to the IEEE-30 bus test system, simulation results show that the time characteristic of protection system has an obvious influence on the duration of voltage sag, and very serious errors will be produced if the time characteristic of protection system is ignored. The proposed method is simple, adaptive and practical, and it is of academic value and practical foreground.
Research on Intelligent Sensor Network Gateway Based on Embedded System
Authors: He Chun Hua
Published: August 2013

This paper, based on several aspects of hot technology such as embedded system, Zigbee technology, and wi-fi wireless broadband technology, designed and implemented an ARM-based embedded Zigbee wireless gateway, which is used to complete the conversion of Zigbee protocol and wi-fi protocol, in order to realize the connectivity of Zigbee network and Internet.
A Full Integrated LNA in 0.18μm SiGe BiCMOS Technology
Authors: Yu Bing Liang , Xie Xiao Ning , Li Wen Yuan
Published: August 2013

A fully integrated low noise amplifier (LNA) for wireless local area network (WLAN) application is presents. The circuit is fabricated in 0.18μm SiGe BiCMOS technology. For the low noise figure, a feedback path is introduced into the traditional inductively degenerated common emitter cascade LNA, which decreases the inductance for input impedance matching, therefore reduces the thermal noise caused by loss resistor. Impedance matching and noise matching are achieved at the same time. Measured results show that the resonance point of the output resonance network shifts from 2.4GHz to 2.8GHz, due to the parasitic effects at the output. At the frequency of 2.8GHz, the LNA achieves 2.2dB noise figure, 19.4dB power gain. The core circuit consumes only 13mW from a 1.8V supply and occupies less than 0.5mm2.
An Improved Nonlinear Flight Controller Design Using Active Disturbances Rejection Control Method
Authors: Fan Zhan Qi , Liu Lin , Sun Xun
Published: August 2013

An improved large envelope nonlinear flight control method using active disturbances rejection control (ADRC) method and wavelet neural network is approved in this paper. Wavelet neural network is used to realize the inversion of the 6-DOF nonlinear airplane model. The wavelet neural network is optimized using simulated annealing particle swarm optimization algorithm to improve the approach precision. In order to improve the robustness and control performance in all disturbances, ADRC is used to realize the high precision flight control. The simulation results show that the large envelope flight controller has excellent control performance.
A CMOS Fourth-Order 150Hz Low-Pass Filter for Sensor Applications
Authors: Dong Chang Chun , Liu Nan Nan , Jiang Zhan Peng
Published: August 2013

A low-pass filter for the sensor is presented, which based on the linearized transconductance structure and the capacitance scaler schemes. The filter adopt fourth order cascade structure, and simulation by 0.5μm CMOS process. Simulation results for the filter show a cutoff frequency of 150Hz, while band ripple is less than 0.8 dB. The power consumption for the filter is only 1.6mW, meet the requirements of the sensor interface ASIC for low-pass filter.
FPGA Implementation of High-Speed Memory Efficient Quasi-Cyclic LDPC Decoder
Authors: Han Jian Bing , He Chen , Zhen Ran
Published: August 2013

This paper introduces a new kind of decoder structure for FPGA implementation of high-speed memory efficient quasi-cyclic LDPC (QC-LDPC) decoder. The code structure, algorithm and hardware structure all adopt optimization design. The decoder adopts modified Turbo decoding algorithm and achieves a decoding throughput of 223 Mbps and frame size of 3,200 bits. The Xilinx Virtex-4 chip used by the decoder only takes up 71 KB memory and makes it exceeds other decoders in aspects of throughput and memory for FPGA implementation.
A Time Synchronization Method Based on Variable-Length Frame
Authors: Zhang Yun , Liang Guang Ming , Liu Ren Ren , Liu Dong Hua
Published: August 2013

If the reference clock is recovered from the input data ,the data rate must at a low speed. Because there is a large clock jitter when the input data at a high speed .In this paper ,a new method of synchronization has carried out for a wireless communication system .The source of data come from the SDI interface,whose rate is 1.485Gbps.The new mechanism avoid introducing the extra hardware by varying the frames structure.The length of frame is changed by adding difference length of 0 at the tail of the frame.
An Identification Method of Library Identifiers Based on Computer Vision
Authors: Liu Li Ya
Published: August 2013

For traditional methods of library identifies based on the two-dimensional code characteristics, these methods are time consuming and a lot of prior experience is required. A method of library identifies based on computer vision technology is proposed. In this method, a preprocessing, such as image equalization, binarization and wavelet change, is first performed on the acquired library label images. Then on the basis of the structural features of the character, the features of library identifiers are obtained by applying PCA for a principal component analysis. A quantum neural network model is designed to have an optimization analysis and calculation on the extracted features, to avoid the drawbacks which need a lot of prior knowledge for the traditional methods. At the same time, an optimization is carried out for the neural network model saving a large amount of computation time. The experimental results show that a recognition rate, up to 98.13%, is obtained by using this method. With a high recognition speed, the method can meet the actual needs to be applied in a practical system.
A Low Power Wireless Sensor Network Based on ZigBee for Data Acquisition
Authors: Li Tao , Bai Bao Hua , Pi Xue Jun
Published: August 2013

This paper presents a low power ZigBee sensor network for use in data acquisition fields. The network consists of end devices with sensors, routers that propagate the network over larger distances, and a coordinator that communicates with the computer, which in turns illustrates the data and controls the entire system. The end devices provide data from the sensors to the personal computer, at variable time points determined by the central node. As part of the investigation, extensive studies were performed to reduce the data packets loss. The algorithm developed at the end devices and the coordinator for this purpose is described in detail. Finally, the circuit that drives the humidity sensor, which contributes reducing power consumption and increasing the systems life time, is presented.
The Study in the Application of FFT in Vibroseis Data Harmonic Filtering
Authors: Zhang Ming , Wei Jia Ming , Xue Long , Xu Meng Jun
Published: August 2013

This paper studies the thesis of slip-sweep acquisition method in vibroseis exploring. First of all, it briefly describes slip-sweep acquisition in principle, operation and signal processing, compared with the bomb exploring and conventional cascaded sweep acquisition and analyzes the principle of vibroseis exploration in detail. Then the reason why harmonics generated is analyzed. Among the harmonics, high frequency harmonics is most serious. Based on extensive research on the theory and the numerical experiments, the paper assumes that the energy of the high frequency harmonics and that of the original stimulated signal into a linear relationship. According to this assumption, a mathematical model to filer out high frequency harmonics is established. After generating standard high frequency harmonics through frequency doubling and estimating the ratio of the energy of each harmonic and fundamental, the mathematical model perfectly matches actual seismic data processing, that is, an effective way of vibroseis data processing. Finally, the paper developed full procedures of slip-sweep vibroseis data processing and made all the programs. With a fast processing speed and obvious effect, the programs achieve good application; fully meet the industrial demand to process vibroseis data.
The Research on a New Method of Indicating Downlink Power Allocation through MAC Control Element in LTE System
Authors: Yang Song Bo , Yang Jian Hao
Published: August 2013

This paper introduces a new method about the downlink power allocation in LTE system, first, eNB indicates the downlink power allocation information through MAC Control Element, second, UserEquipment calculates Energy Per Resource Element of Physical Downlink Shared CHannel Resource Element according to the downlink power allocation information, finally, UserEquipment use the new Energy Per Resource Element to decode. The advantage of the method is that processing delay is less, and it improves performance of downlink transmission system.
A Blind Source Separation Method Applied to Simultaneous Kinetic Multicomponent Determination
Authors: Ling Gao , Ren Shou Xin
Published: August 2013

A multi-dimensional data processing method, independent component analysis-based principal component regression (ICA-PCR) was developed for simultaneous kinetic determination of Cu (II), Fe (III) and Ni (II). Independent component analysis is a newly developed signal processing technique aiming at solving related blind source separation (BSS) problem. One program, PICAPCR, was designed to perform relative calculations. Experimental results showed the ICA-PCR method to be successful for simultaneous multicomponent kinetic determination even where there was severe overlap of spectra.
Application of DWT in Intra-Frame Coding of Video Compression
Authors: Jiang Xiao Chen , Li Guo Ping , Zhao Hai Wu , Wang Guo Zhong
Published: August 2013

With the development of modern signal processing technology, the method of Wavelet Transform (WT) has been greatly used in image and video processing. In this paper, a method to use Discrete Wavelet Transform (DWT) in intra-frame (I-frame) video compression is proposed for the purpose of better compression efficiency and quality on the basis of good visual effects. The method can be functioned as a preprocessing of I-frame coding. The experimental results show that the proposed method has an increase in both coding efficiency and quality.
The Application of Communication Management System Based on the Pattern of SOA
Authors: Hou Hong Feng , Wang Can , Jiang Bo
Published: August 2013

For it has so many features of SOA--loose coupling, findable, assemble, reuse, etc., it can bring great competitive strength to enterprise. Then we can integrate the communication service with the whole system. The article uses the concept of SOA and ESB and puts forward the life circle of the constructing of communication management system. First of all, we analyze the requirement of the CMS and achieve the goals need to be meet. Then the overall design are described. it focus on the design of the service model of communication core and communication gateway.
Research on Improved Spline Interpolation Algorithm in Super-Resolution Reconstruction of Video Image
Authors: Hou Xiang Hua , Liu Hong Hai
Published: August 2013

When low-spline interpolation algorithm is adopted by super-resolution reconstruction for video images, there are some defects, such as saw tooth and blur edge, if the result image is magnified. In this paper, high-order spline interpolation algorithm is introduced and it is optimized. Firstly, the common low-spline interpolation algorithms are analyzed and their shortcomings are pointed out. Then cubic spline interpolation algorithm is discussed. If the image is rotated by cubic spline interpolation algorithm, the magnified image may be not correctly displayed and the image can not be registered in super-resolution reconstruction. Finally, the cubic spline algorithm has been improved. Experimental results show that the improved cubic spline interpolation algorithm can not only eliminate the edge blur and saw tooth, but also do registration in reconstruction when image is rotating.
Improved Principal Component Analysis for Face Image Recognition
Authors: Zhang Jina De , Hang Chen Rong , Xu Jin Bao , Chen Hang
Published: August 2013

Principal cmponent analysis is applied to face recognition problem to shorten image processing time in this paper. Based on the analysis of basic principal cmponent analysis algorithm, a new strategy which can improve algorithm efficiency by reducing the dimension of face images to be processed is introduced to face recognition problem, and the detailed computer implementation procedure is given. Numerical experiments have been performed to evaluate the efficiency of improved principal cmponent analysis algorithm for the problem of face recognition.
A Novel Method to Enhance and Optimize Retinal Vessels Image Based on Combining Bottom Cap and Optimization Transformation
Authors: Xie Zheng Xiang , Chen M.M. , Xiong X.L. , Huang W.N. , Huang T.T.
Published: August 2013

Combining bottom cap and optimization transformations belt a novel method to enhance and optimize retinal vessel image. The results pointed out that use of this method can obtain resulting image with clear retinal vessel especially in the optic disc.
Using GPTS to Relize Communication by Serial 422
Authors: Liu Yu , Kong Bo , Yang Mei
Published: August 2013

ATLAS (Abbreviated Test Language for All Systems) is an abbreviated test language .GPTS is a development platform to develop ATLAS programs. RS 422 is widely adopted standard between the radio control box and the host computer .The process to develop test program in ATLAS by GPTS is described in this paper to realize the communication by serial 422.The application shows that it can improve the test speed and reduce the loss of resources by full duplex without handshaking line.
Ear Recognition Based on Point Feature
Authors: Tian Ying , Zhang De Bin
Published: August 2013

In order to improve recognition rate of human ear, a method based on point feature of image for ear recognition is proposed in this paper. Firstly force field transformation theory is applied to human ear image two times in our method. It can extract the structural feature points and contour feature points of ear respectively and compose feature point set. Then feature points described by the scale invariant feature transformation descriptor. At last nearest neighbor classifier is employed for ear recognition. Feature points extracted from ear image using force field transformation are stable, reliable and discriminative, and they are insensitive to variations in image resolution. Constructing descriptor can resolve the problems caused by lower recognition owing to illumination change, scaling transformation, rotation and minute alteration caused by pose transformation. The experimental results show that the proposed algorithm not only can effectively improve ear recognition rate but also has quite good robustness.
Pedestrian Detection Based on SOM Neutral Network
Authors: Biao Shi Yong , Feng Guo , Xiang Long
Published: August 2013

This paper presents a method of detecting pedestrians side in video frames of cluttered scenes. This detection technique is based on the idea of wavelet template and SOM neutral network. In order to make detection results more accurate and reduce computation cost, we combine background subtraction and frames difference to decide where pedestrians stand in a frame.
A Gesture Trace Detection Method Using DTW
Authors: Hong Duan , Luo Yang
Published: August 2013

This paper puts forward a gestures trajectory recognition method based on DTW. Through the direction characteristic to calculate trajectory characteristics, and through the coding to quantize direction characteristic, and at the same time, considering the direction of the cyclical, proposed a new distance equation for calculating distance. The experimental results prove that the method realized the dynamic gesture recognition in the complex static background.
Discussion and Research on Stochastic Stability Based on Network Control System
Authors: Liu Fu Lu
Published: August 2013

With the growing surge of network control system research results, the study of stability analysis aspect of network control system is diversified. This paper introduces the concept of packet loss and equivalent network-induced delay, the stochastic stability of network control model is studied, the use of network control system modeling is transformed into the concept of a discrete time based on jump linear system, and the stochastic stability some conditions of networked control systems are proposed. At the same time, the state feedback controller related to solve the problem will also translated into linear matrix inequality problems, which carries out the study of the stochastic stability of networked control systems. Finally, through the simulation examples, they are given to demonstrate the validity of the study method in application, which use the modeling method to study the problem, and also have certain significance in related fields in a certain extent.
Survey and Evaluation of Coalfield Geological Exploration and Coal Resources Based on Remote Sensing Technology
Authors: He Qing Song , Zeng Fan Gui
Published: August 2013

With the development of computer science and information technology, computer data mining technology is updated, which makes the image mosaic technology that can detail data processing for remote sensing image. On this basis, this paper uses advanced computer image processing technology to carry on the combination of wavelet decomposition, combined with the GIS remote sensing technology, the coal exploration and investigation evaluation technique are carried out in-depth discussion. The paper establishes the mathematical model of GIS remote sensing image processing, and through the wavelet decomposition method, the function of image processing is given. In the third part, combined with the MATLAB data processing software, coal GIS satellite remote sensing image is carried out resource evaluation by the programming operation and the size distribution of coal rock is drawn, the coal content evaluation data table of remote sensing area is finally obtained, in which the content of No. 1 coal seam is highest reached 9860 tons, the horizontal extension of four coal seams is between 200-500m, and the longitudinally is extending between 50-100m.
Algorithm of Adaptive Online Blind Signal Separation Based on Matrix Separation
Authors: Xu Dong Hui , Ma Hong Guang , Guo Wen Pu , Yang Dong Dong
Published: August 2013

For the studied the over-determined blind source separation algorithm and its application in radar signal sorting. The reason that natural gradient algorithm of over-determined BSS can not stably converge eventually is analyzed. Aimed at the problem that the exiting methods are analyzed and researched. On-line BSS algorithm with adaptive step length based on separating matrix is presented to implement the optimum combination between the convergence speed and the steady-state error. At the same time, the algorithm can achieve a better separating result when the signal is randomly reduced or increased. The simulation result verifies the convergence stability and the separating effectivity of the two improved algorithms.
A Research on 3D Stereoscopic Virtual Imaging Based on Steady State Visual Evoked Potential
Authors: Zhang Gui Xin , Wu Ping Dong , Huang Man Ling , Liu Shuang
Published: August 2013

To expand the visual field of the 3D display screen, we propose a 3D visual image location controller based on the visual evoked potential (VEP). The controller evokes potential information by visual simulator. It constructs high quality data collection system by an EEG amplifier, then abstracts the characteristics of the EEG signal by signal processing algorithm and controls the movement of image on the 3D display screen by transforming them into controlling signal. This research can expand the visual field of the 3D display screen.
Process Control Strategy for Oilfield Piezoelectric Control Layered Production Allocation
Authors: Tao Xiong
Published: August 2013

Focusing on the fluid flow control in oilfield piezoelectric control layered production allocation, an identification-free adaptive control strategy with expert amendment is proposed to solve the problem that it is hard to be controlled due to large time delay, nonlinearity, time variation and difficulty in establishing mathematical model of regulation process. In this control strategy, according to the past and current process information, the process output and trend can be estimated based on expert rules to amend the output of the identification-free adaptive control. The simulation result shows that this control strategy has good robustness and perfect fluid flow control for piezoelectric control layered production allocation process.
An Audio Information Hide Algorithm Based on Error Correcting Code
Authors: Zhang Xing Hua , Fu Xi Hui
Published: August 2013

This paper presents a method of error correcting code to improve the performance of audio information hiding. To use hadamard as error correcting code, not only makes audio information more secret, but also has higher correct error capacity to noise, compression and filter.
Fungicides Inhibition Analysis by Molecular Docking and Sensitivity Testing of Penicillium italicum
Authors: Yu Jin Hui , Qi Ting , Xiong Li , Li Qian , Wang Jin Long , Yuan Yong Ze , Geng Hui , Liu De Li
Published: August 2013

Blue mold, caused by Penicillium. italicum, is one of the most damaging postharvest diseases of citrus fruit. P. italicum Sterol 14α-demethylase (PiCYP51), an important enzyme in membrance sterol biosynthesis, is a key target of antifungal compounds for citrus disease caused by P. italicum. The three-dimensional structure of PiCYP51 from P. italicum Chinese isolate (HS-1) was constructed through homology modeling basing on the crystal structure of human CYP51. After molecular dynamics (MD) simulation, the refined model was assessed by PROCHECK on the quality. Following evaluation on the reliability was performed by investigating the binding interaction of two commercial sterol 14α-demethylase inhibitors (DMIs) with the enzyme. The binding mode predicted by the molecular docking revealed that the DMIs interacted with PiCYP51 mainly through hydrogen-bonding and hydrophobic interactions. Furthermore, the results were compatible with the detected EC50 values, which were determined as 0.25 and 0.31mg/L for tebuconazole and diniconazole. The binding mode of antifungal agents with PiCYP51 can provide references for DMIs optimization, virtual screening, or de novo antifungal compounds design.
Research on the Application of Visualization Computer Technology in the Design of Architectural Decoration
Authors: Zhou Jun , Zhou Jian , Ma Xiao Li
Published: August 2013

With the advances of computer science and technology, the visualization computer technology profoundly affects and changes people's understanding of the traditional visual language and promotes the continuous progress of the building decoration design. Its function of repeatedly revised not only can improve the quality of design but also can shorten the design cycle. The characteristics of building decoration design and the advantages of application of visual computer technology were first analyzed; based on analyses, the article explores the reliabilities of visualization computer technology in architectural decoration design. Linear model provides a theoretical basis and practical support for the development of architectural decoration design in a certain extent.
Application of Soft Magnetic Composite Material in the Field of Electrical Machines
Authors: Li Xiao Bei , Zhao Jing , Chen Zhen
Published: August 2013

The property of the soft magnetic composite (SMC) material is introduced. Take the traditional material used for electric machine, i.e. the silicon steel lamination, as the reference, this paper summarizes the application advantages of SMC in the typical electric machine, such as tubular permanent-magnet liner machine, high-speed permanent-magnet machine, claw-pole machine, axial flux permanent-magnet machine and radial flux permanent-magnet machine. SMC material has much applied potential in the field of electric machine.
A Study of Structure and Thermal Parameters of Biomedical Used Ni20Pd80 Alloy
Authors: Zhang Ya Jing , Li Li Xin
Published: August 2013

The structure and thermal parameters of biomedical used Ni20Pd80 alloy were studied using X-ray diffraction (XRD) technique. The diffraction experiments performed in the temperature range of 308-1100 K revealed that the alloy forms a face centered cubic (fcc) A1-type structure. The temperature dependence of the lattice parameters was investigated using the Bragg line displacement method shows that the lattice parameter increases with the increase of temperature. The mean linear thermal expansion (MLTE (%)), coefficient of thermal expansion (CTE) α, the characteristic Debye temperature (ΘD) and mean square amplitudes of vibration were determined from the XRD data. The value of Debye temperature was found to be 253 K. It was found that temperature factor was independent of the static displacements.
The Research and Practice of Heated-Wind Circulating and Shock Drying Method for Li-Ion Power Battery Electrode
Authors: Han Liang , Lu Wen Zhou , Wang Shen Wang , Shen Jian , Hao Ya Fei , Xiao Feng
Published: August 2013

Li-ion power battery has many advantages, such as high energy, lightweight, long cycle life and so on. It has become a research hotspot in the new energy field. This paper describes the Li-ion power battery coating and drying process which has a significant effect on the performance of Li-ion power battery. According to the market research and business requirements, the project decides to apply heated-wind circulating and shock drying method to dry of the Li-ion power battery electrode. The method has been successfully applied to the production, which has achieved excellent results in energy saving and improving enterprise efficiency.
Research on the Trends of Photonic Crystal Polarization Maintaining Fibers
Authors: Zhang Chen Yang , Shi Teng Fei
Published: August 2013

Based on a large number of domestic and foreign literatures, we Put forward that the global polarization maintaining structure PM-PCF is the future development trend. The PM-PCF preform manufacture and drawing process were detailedly analyzed and summarized in this paper. And the development difficulties of the PM-PCF were analyzed in-deep.
Supply Chain Financing Model: Based on China's Agricultural Products Supply Chain
Authors: Wang Ting Rui , Lan Qiang Gao , Chu Yong Ze
Published: August 2013

Difficulty in financing is a general problem faced by farmers and small and medium-sized agricultural enterprises for a long time because of the lack of guarantees in china. Supply Chain Finance (SCF) is generating much attention as a means of substituting for lower credit availability. For the purpose of promoting chinas rural financing products and service innovation by using SCF, this article studies agri-supply chain financing model and financing products. The result showed that agri-supply chain can extend credit to the upstream and downstream enterprise through order financing, accounts receivable financing, financing warehouse, accounts payable financing, prepaid accounts financing and inventory financing etc.
Design and Empirical Studies of Modern Distance Education Quality Evaluation System
Authors: Lun Guan Chen
Published: August 2013

This paper discussed modern distance education quality evaluation of the status quo. Take it as the basis for building the remote education quality evaluation system. Then I establish a set of index system of quality evaluation. Here, I took advantage of Analytic Hierarchy Process and assigned weights to each indicator. Because the influential factors of Quality Evaluation are fuzzy, I used the theory of Fuzzy Evaluation System to establish distance education quality evaluation model. Finally, with the help of the sample data provided by the combination of case, I had an empirical analysis of the model and improved the quality of distance education methods and measures for the results of the comprehensive evaluation.
A Graphic Simulation System for Stored Grain Management
Authors: Sun Ling , Zhu Ze Sheng
Published: August 2013

This paper discusses how to design and implement the stored grain management system based on graphic variable in GIS environment. A simulation model based on graphic variable for implementing stored grain management was developed in order to implement simple and high efficiency management for a number of stored grain warehouses. The temperature and moisture of stored grain were presented by vector curves or graphic variable that was stored in GIS. Thus, GIS powerful function to process graphic makes the prediction of temperature and moisture of stored grain become simpler.