bluuebunny/crossref_metadata_2025 huggingface dataset:
An Improved Implementation of Anisotropic-Medium PML for Efficient Laguerre-Based FDTD Method
Authors: Chen Zheng , Duan Yan Tao , Zhang Ye Rong , Gao Cheng
Published: May 2014

This paper introduces an improved implementation of the anisotropic-medium perfectly matched layer for efficient Laguerre-based finite-difference time-domain method. Compared with the original implementation, the new formulations do not involve any nonphysical intermediate variables, while being more concise. The numerical example shows that the proposed implementation is valid.
Application of Kalman Filtering Techniques and Simulation Analysis
Authors: Liu You Ming , Song Tian Zhen Long , Li Kuan , Lin Hong Wen , Li Ting Jun
Published: May 2014

The principles and methods of their combined mode SINS/celestial navigation, and applying the theory of error state Kalman filter integrated navigation systems were analyzed. Derivation of a new measurement equation, written Kalman filtering process filter analysis was carried out to prove that the model has a good combination of inertial devices drift suppression effect.
Outage Performance of Multiuser AF Two-Way Relaying with Asymmetric Traffic Requirements over Nakagami-m Fading
Authors: He Shi , Gao Bing , Fan Zhang Jun
Published: May 2014

In this paper, we investigate the outage performance of a multiuser two-way relaying system over Nakagami-m fading channels. In particular, we consider the amplify-and-forward (AF) relay system with beamforming at the base station. Furthermore, the base station and mobile users have asymmetric traffic requirements. We fist derive a tight lower bound for the outage probability (OP). Moreover, the asymptotic outage probability expression is derived to shed light on the system's diversity order. Finally, Monte Carlo simulations are conducted to verify the analytical results.
Cooperative Spectrum Sensing Algorithm Based on High Contribution Value of Secondary Users in Cognitive Radio
Authors: Zhu Jun , Zhu Shan Shan , Sun Han
Published: May 2014

Due to the rapid development of wireless communication technology and the increasing demand for wireless communication, spectrum resources are increasingly scarce. Cooperative spectrum sensing technology has effectively improve the spectrum efficiency, in order to avoid secondary users (cognitive user) causing interference to the primary user (authorized user), this paper proposes a new cooperative spectrum sensing algorithm, When an primary user occurs, the algorithm for different secondary users assign different contribution value, authorized users can quickly detected. The end of each round, the node number of low contribution value, the fusion center will not use its test results. Simulation results show that the false alarm probability and detection probability are better than generally cooperative spectrum sensing algorithms to verify the feasibility of the proposed algorithm.
Efficient Plane Wave Excitation for 3-D Laguerre-Based FDTD Method
Authors: Chen Zheng , Duan Yan Tao , Zhang Ye Rong , Gao Cheng
Published: May 2014

In the three-dimensional (3-D) Laguerre-based finite-difference time-domain method, each electric field variable has the relationship with the adjacent twelve electric fields. This results in the tedious modification of field components adjacent to the total-field/scatter-field boundary in analyzing scattering problems. In addition, the plane wave excitation requires much time in evaluating the expansion coefficient of incident field which involves integral of the weighted Laguerre polynomials with respect to time. In this letter, the plane wave is introduced by defining a set of equivalent currents on a closed Huygen's surface and a computationally efficient one-dimensional auxiliary propagator is presented to speed up the plane wave excitation. Numerical results indicated that the proposed method is valid.
An Improved Structure Design of Rolling Drum for the Mixture of Different Sizes of Particles
Authors: Gao Yuan Lou , Zhou Li , Wang Xin
Published: May 2014

In many industries, such as chemical industry, food industry and cement industry, rolling drum are widely used for the mixing of solids which in many cases is the mixture of particles of different sizes. The quality of product is directly determined by the mixing uniformity, thus it is desired to guarantee the stability of mixing extent of rolling drum. This paper describes a new structure design for the mixture of different sizes of particles, and an image-analysis-based experimental method to verify the effectiveness of this new structure. Results of the experiment showed that using the new structure would enable a faster mixing rate, and obtaia higher mixing extent relative to the traditional structure.
Title and Content Correlation for Automatic Essay Scoring Model
Authors: Min Fang , Sun Yue Ping , Dai Ji Sheng
Published: May 2014

This paper investigates the correlation between the title and text content for automatic essay scoring (AES) model. Inspired by the fact that the essay quality is usually related with center sentences, we propose a modified method based on latent semantic analysis (LSA), which calculates their relevance threshold frequency directly. Two different implementations are presented in this paper. The first one counts the number of sentences whose correlation must be larger than a certain threshold, while another one counts the mean value of sentences’ number. According to experiments for these implementations, the relevance between title and text content is shown to be benefit for AES. The second implementation has the best performance to characterize the feature about the relevance between title and text content.
Optimal Structure Design of Mobile Phone Packing Box Based on Dynamic Analysis
Authors: Pan Duo , Qin Han Yu , Liu Su Qin , Zhang Zhi Biao
Published: May 2014

By using the finite element analysis method, this paper firstly conducted simulation test for phone packing boxes under ANSYS environment. As a result, the force distributiones of packing boxes under different loading conditions were calculated, the reliability of cushion packing box is obtained. Finally, structural optimization is conductedwas carried out to the location where may undertake bigger force. Then, experiments and tests were conducted to the optimized packing box. In the meantime, the theoretical simulation result and the measured result from test are compared. Repeated comparisons have been carried out to draw the final decision.
Mixed Noise Image De-Noising Based on EM Algorithm
Authors: Shi Gui Cun , Wang Fei Xing
Published: May 2014

Obtaining high quality images is very important in many areas of applied sciences, but images are usually polluted by noise in the process of generation, transmission and acquisition. In recent years, wavelet analysis achieves significant results in the field of image de-noising. However, most of the studies of noise-induced phenomena assume that the noise source is Gaussian. The use of mixed Gaussian and impulse noise is rare, mainly because of the difficulties in handling them. In the process of image de-noising, the noise model’s parameter estimation is a key issue, because the accuracy of the noise model’s parameters could affect the de-noising quality. In the case of mixed Gaussian noises, EM algorithm is an iterative algorithm, which simplifies the maximum likelihood equation. This thesis takes wavelet analysis and statistics theory as tools, studies on mixed noise image de-noising, provides two classes of algorithms for dealing with a special type of non-Gaussian noise, mixed Gaussian and Pepper & Salt noise.
Large Scale Mosaic Using Parallel Computing for Remote Sensed Images
Authors: Chu Bin , Jiang Da Lin , Cheng Bo
Published: May 2014

This paper concerns about Large-scale mosaic for remote sensed images. Base on High Performance Computing system, we offer a method to decompose the problem and integrate them with logical and physical relationship. The mosaic of Large-scale remote sensed images has been improved both at performance and effectiveness.
The Fast Convolution Neural Networks Applied to License Plate Recognition
Authors: Liu Yong Jun , Liu Kun Qi
Published: May 2014

In this paper, we propose a fast convolution neural network architecture to solve image document recognition problem, and this is a difficult problem because of ambient lighting conditions, and the images are usually noisy, broken or incomplete. We applied to license plate recognition and also analyzed the results of this mapping process and the number of different features.
A Novel Method of Acquiring the Digital Image Characteristics of Rock
Authors: Xu Zhong Ze , Wu Jian Hua , Zhu Jin Song , Xu Wei Dong
Published: May 2014

To obtain the characteristics of rock is one of the most significant methods in reconnaissance in order to make the project camouflaged. This paper, which is based on the former study on digital image processing technique, is mainly about the way to acquire the general and detailed information, such as geographic distribution and specific texture of rock. The technique put forward in the paper is fundamental to carry out reconnaissance, design the project and evaluate the camouflage effect.
Implementation of ZigBee and Image Picking Based Automatic Meter Reading System
Authors: Xu Xiang , Zhang San Feng , Zhang Rui , Han Chun Nan
Published: May 2014

Automatic meter reading (AMR) system is known as the communication-based system to read meters. It is an application of smart home with high pertinence and practicability, which can bring on benefits to utility companies (living resources suppliers). The key to designing and implementing an AMR system is communication. Many communication modes have been proposed for AMR system. This paper proposes a ZigBee and Image Picking based Automatic Meter Reading System (ZIP-AMRS) and introduces its implementation in details. As its name suggests, the system uses ZigBee network and image picking technology to collect meter data. Tree routing protocol and end-to-end acknowledge mechanism are adopted to ensure reliable transmission. We installed and verified ZIP-AMRS in an office building, and got the real-time meter picture.
The Use of Digital Wireless Communication Network Optimization in the Frequency Conversion Technology
Authors: Yan Chao , Zhang Li
Published: May 2014

in wireless communication network, the digital frequency conversion technology is a core technology, with the development of digital wireless technology, wireless technology is more and more mature, the broadband wireless infrastructure requirements also gradually improve, but because of limited technical level, the current signal in the frequency conversion process, RF signal after many simulation conversion into intermediate frequency, and then in the intermediate frequency conversion to digital, then can carry on the digital frequency conversion, unable to meet the demands of network development, this article discussed the technology of digital frequency wireless communication network optimization based on.
GPRS Based GPS Mobile Terminal Communication Study
Authors: Yan Chao , Li Zheng
Published: May 2014

wireless communication characteristics of the GPRS technology, and in combination with GPS global positioning technology and geographic information system technology, the embedded Linux operating system as a platform, a mobile terminal navigation and design functions of the system monitor. The mobile terminal navigation and monitoring system in the practical application, through the GPS mobile terminal to the corresponding GPS positioning information receiving case, sending the received by the wireless communication technology of GPRS network GPS positioning information to the monitoring center corresponding, in order to achieve the mobile terminal system of navigation and monitoring role. The article will be in for the mobile terminal communication system design scheme based on the GPRS technology based on GPS, the communication of this system used for navigation and monitoring purposes are analyzed and discussed.
Video Based Face Verification
Authors: Zhang Xue Zhi , Tang Xiao Kang , Zou Qiong , Zhang Yong Zhen , Zhang Da Wei
Published: May 2014

A method of PCA face verification based fuzzy membership is proposed. Constructing the face gallery set through video streaming, using principal component analysis to feature extraction and designing a classifier based fuzzy membership. To verify face in accordance with the threshold principle of fuzzy pattern recognition. The method is compared to the method of PCA face verification, experimental results shows that the proposed method has higher accuracy and robustness.
Modification of Plasma Spurt Spraying on Improving Fatigue Property of Welded Joint
Authors: Zhao Xiao Hui , Liu Yu
Published: May 2014

The present paper introduces a modification method of welded joint, plasma spurt spraying (MPSS), for improving the fatigue life of welding structure. Nickel-base alloy powder was used to spray the welded joint of Q235B steel. The high cycle fatigue tests of specimens treated by MPSS were carried out to obtain the S-N curves. Meanwhile, numerical simulation was performed to obtain the residual stress field after spraying. Test results show that the fatigue strength of welded joint by MPSS is higher than that of as-welded joint. Based on the test results and simulation results, it can be concluded that MPSS improves fatigue strength mainly through the decrease of stress concentration and residual stress.
Research on Modulations of Wireless Optical Communication System Based on RS Code under Weak Turbulence Atmosphere Channel
Authors: Liu Yang , Zhang Guoan
Published: May 2014

The free space optical (FSO) system model is analyzed based on on-off keying (OOK), pulse position modulation (PPM), differential pulse position modulation (DPPM) and digital pulse interval modulation (DPIM) under the weak turbulence atmosphere. To improve the system performance, one effective way is to use forward error correction (FEC).The bit error rate (BER) calculating formula of uncoded system is derived under all above the modulations firstly, then as a benchmark, under the case of independent with identical distribution, the average bit error rates of RS coded system are derived, respectively. Simulations of the average bit error rate performance of these systems are done. Simulation results show that, PPM has the best bit error rate performance, RS coded is efficient to get the code gain and to improve jamming-rejection capability of system.
Improvement of Chaotic Signals De-Noising with the Self-Optimizing Method of Wavelet Threshold
Authors: Wei Xiu Lei , Lin Rui Lin , Liu Shu Yong , Wang Qiang
Published: May 2014

For the purpose of improving adaptive performance of chaotic signals de-noising with wavelet transform, a method of Memetic-algorithm-based adaptive wavelet de-noising (MAWD) is presented. The MAWD based on generalized cross validation (GCV) is competent to obtain the global optimum thresholds and to raise the efficiency of adaptive searching computation. The de-noising results of simulative Lorenz time series are presented. The results show that the chaotic signals de-noised by MAWD can remove the white noise more effectively than the signals de-noised by using standard soft threshoding method (STM) and genetic-algorithm-based adaptive wavelet de-noising (GAWD), and the advantages are more apparent under the condition of lower SNR. The Lorenz time series with lower SNR de-noised by MAWD and GAWD respectively are predicted by Volterra adaptive filters, and the results show that the prediction absolute error of Lorenz time series de-noised by MAWD is nearly nine times smaller than that by GAWD. This method has a promising prospect in practical Chaotic signals de-noising.
A Robust Algorithm PART in Face Tracking
Authors: Yang Qiu Fen , Li Zhen Jun , Li Can Jun , Zhu Can , Yang Xian Lin
Published: May 2014

In order for the effective recognition of face in the videos of complex environments, this paper presents an algorithm of face tracking of robust. Basing on the rigid constraints, this algorithm generates the potential rectangular area of face tracking,generates the isosceles triangle for the front–view images, generates the right angled triangle for the side images, and reaches the effective rate as 98.18% of face recognition in different sizes, lightings, poses,expressions and even under different noises.
Computer Simulation Analysis on Feature Extraction of High Speed Signal Based on Bayesian Algorithm
Authors: Jiang Hong
Published: May 2014

The discipline of journalism needs to gradually transform perspective. It combines with the characteristics of academic discourse of news communication to build a strong Chinese characteristically academic discourse system of news, so as to make a positive contribution to the development of Chinese journalism discipline. First, we analyze the general compensation model on the basis of compensation algorithm. Based on more compensation formulas, we analyze the principle of compensation. According to the basic requirements of the news communication and the unique function of Chinese characteristically academic discourse, with the basic requirements of the unique characteristics of academic discourse for news communication and Chinese characteristics, and combined with the relative reliability features extraction method of information builds academic discourse system of Chinese characteristics news communication based on Bayesian algorithm. We apply the computer to make simulation analysis on the effect of different classes' weighting factors on the system structure. The results show that the system structure has a high efficiency, good stability, and strong practicability, which has provided theoretical and technical support for the research in this field to a certain extent.
Image Processing Based on Three-Dimensional Stereo Vision
Authors: Wang Ting Ting
Published: May 2014

Three-dimensional stereo vision technology has the capability of overcoming drawbacks influencing by light, posture and occluder. A novel image processing method is proposed based on three-dimensional stereoscopic vision, which optimizes model on the basis of camera binocular vision and in improvement of adding constraints to traditional model, moreover ensures accuracy of later location and recognition. To verify validity of the proposed method, firstly marking experiments are conducted to achieve fruit location, with the result of average error rate of 0.65%; and then centroid feature experiments are achieved with error from 5.77mm to 68.15mm and reference error rate from 1.44% to 5.68%, average error rate of 3.76% while the distance changes from 300mm to 1200mm. All these data of experiments demonstrate that proposed method meets the requirements of three-dimensional imageprocessing.
Study on the Relationship between Total Hydrocarbon and Gases Dissolved in Transformer Oil
Authors: Chen Yi , Song Bin
Published: May 2014

Dissolved gas analysis (DGA) in transformer oil is considered as one of the preferred projects to discover the potential faults of the transformer. To identify the aging characteristics of oil-immersed transformer oil in long-term operations, it is important to study relationship between total hydrocarbon and gases dissolved in transformer oil. This paper used Pearson correlation coefficient to analyze the relationship with the data of DGA. At last, it gives the result that the correlations between the total hydrocarbon and carbon monoxide, methane, ethane, ethylene, acetylene was positive. Therefore, this study lays the foundation which help to diagnose the aging status of transformer.
The Methods of Corrosion Prediction for Materials in Natural Environment and their Applications
Authors: Zhang Ai Ai , Zhang Wei Fang , Zhang Yu Long , Liu Tian Jiao
Published: May 2014

It is of great significance for corrosion prediction to avoid sudden accident, reduce casualties and environmental damage. This paper introduces the basic methods of corrosion prediction for the materials in natural environment. Firstly, statistical methods of corrosion prediction, including the linear extrapolation prediction method based on the function model and the extrapolation prediction method based on the related model, are showed. Then, some modern and mathematic methods for the corrosion prediction, such as grey forecasting method, prediction method of neural network, prediction method of pattern recognition, have been expounded. Finally, the typical applications in natural environment of those methods have been summarized.
Communication with a Micromouse through RS232
Authors: Zhang Hao Ming , Peh Lian Soon , Wang Ying Hai
Published: May 2014

A micromouse’s performance is decided by many control parameters which are stored in the flash memory, user can tune the robot’s performance by adjusting the parameters. To meet the special requirement , communication system based on RS232 was designed. Results of four different commnicaiton parts show that the communication system can work well.
Design of Flight Data Signal Generator System
Authors: Li Chang You , Ye Gui Rong , Yang Quan Fa
Published: May 2014

Aiming at the problem that flight data recorder taken aircraft directly as testing signal resource in the process of development and debugging of the flight data recorder is very difficult, the flight data signal generator based on embedded system is designed, which purpose is to simulate the status signal of aircraft and each component of aircraft during flight, providing test signal source for flight data recorder. Interactive interface was designed on PC by LabVIEW, which was used for setting parameter values of each signal; STM32 microcontroller received the parameter value and controlled each generating module to generate electric signal. All generating modules link with the Bus network, and the network will be easy to increase or decrease generating module. Experiment results show that the flight data signal generating system can simultaneously generate 138 signals, including analog, digital, synchronous, frequency, ARINC429 bus signals etc, and can work stably.
The Research on Sparse Channel Estimation in Multi-Relay Cooperative Communication System
Authors: Wang Yi Xuan , Yang Shou Yi , Ge Tao , Zhang Ai Hua
Published: May 2014

In a frequency selective fading environment amplify and forward relay system, the channel estimation algorithm and least squares (LS) estimation of mean square error is relatively high. And when using the compressed sensing (CS) which was proposed recently in orthogonal matching pursuit algorithm (OMP) for the single relay channel and multi relay system estimation, in order to reduce the mean square error of the system. In multi-relay cooperative communication system, allocated the power to the relay node, then respectively using the LS and OMP for channel estimation. The results show that, the orthogonal matching pursuit algorithm can greatly reduce the system mean square error, and the same channel estimation algorithm was used for the relay power allocation is also effectively reduce the estimation error, to further improve the accuracy of channel estimation.
Subjective Evaluation of Focus Pulling for the S3D Video
Authors: Ren Hui , Su Zhi Bin , Li Hua , Zhang Meng , Wang Hong Tao
Published: May 2014

In this paper, we have designed two experiments to investigate the visual comfort of focus pulling for S3D video with different shooting configurations. The variables mainly includes:1) convergence setting ;2) the distance between camera and subjects;3) pulling direction of focus. Evaluation results showed that different convergence settings would affect the visual comfort during focus pulling obviously. With the increasing of convergence distance, the subjects would appear from inside to outside of the screen, and the visual comfort value of focus shifting would decrease. Our research can provide data analysis for improving the visual comfort and shooting technology of S3D videos.
Research and Design of Broadband Wireless Multimedia Trunking Communication Dispatch Client Based on B/S Architecture
Authors: Huang Lian Fen , Huang Wei , Yang Xian Long , Tang Yu Liang
Published: May 2014

Broadband trunking communication system has been widely used with a variety of industries, such as public transportation security and navigation, etc. Trunking communication is a branch of mobile communication. Because the client of traditional dispatch services based on C/S (client/server) architecture need to install the client software, this paper studies and designs one dispatch client, which is based on B/S (browser/server) architecture.
Research on Space Usage Tracking Principles of Data Pages in SQL Server
Authors: Li Ai Wu
Published: May 2014

As an enterprise database product, SQL Server must track space usage status of all data pages in data files. SQL Server uses PFS page to track information of space usage in data pages. This paper discusses the principles of data page space tracking. Performed add, delete, modify, etc. series of experiments, results shown that the PFS data changes corresponding to different data operations.
The Research on Routing Technology of Wireless Self-Organized Network
Authors: Chen Wu
Published: May 2014

Routing technology is the basis and the key for wireless self-organized network. Based on the summary of the researches on routing technology for wireless self-organized network, this paper comes up with routing protocols and corresponding solutions for wireless self-organized network. Meanwhile, the paper explores the future development in this field.
The Application and Implementation of Real-Time Three-Dimensional Video Scene in Virtual Target Aiming Training
Authors: Li Zhi , Wang Xiang
Published: May 2014

The traditional virtral target aiming training uses indoor large screen projection more. Recently, the system also uses the virtual reality scene as background. According to the situation, using real-time video frame as the virtual target aiming training background for the authenticity of the virtual target aiming training scene is presented in this paper. This method fully shows the maturity of modern video acquisition technology and the innovation of virtual reality scene. This paper prensents using DirectShow tools for video frame acquisition and taking the advantages of OpenFight API for the model built by military simulation modeling software MultiGen Creator development based on OpenGL development platform and completes the building of virtual target aiming training scene based on real-time three-dimensional video scene and the consistency of virtual target and scene.
Application of Radial Basis Function Neural Network on the Prediction of Urban Built-Up Area
Authors: Chen Li Hua , Wang Yu Chen
Published: May 2014

The study on the prediction of urban built-up area is the basic issue in urban planning. This paper takes the prediction of urban built-up area of Hefei city as an example, building a factor system that affects built-up area from the economic, social and environmental dimensions. Then, the paper establishes a quantitative prediction model based on the Radial Basis Function neural network. As a comparison, the paper also uses the Back Propagation neural network to predict. The results show that the Radial Basis Function neural network prediction has a higher accuracy and the prediction result is more reasonable and reliable.
Study on Electric Vehicles Social Network
Authors: Wang Xi Wei , Dang Qi , Guo Jing Lin , Tong Xue Song
Published: May 2014

This paper discussed the terminal application of vehicle networking and proposed software and hardware implementation of electric vehicles travel recorder. The structures and construction method were analyzed for electric vehicles networking. Finally, the scalable networked data processing architecture vehicle was made​​.
Security Analysis on a Public POR Scheme in Cloud Storage
Authors: Zhang Jian Hong , Tang Wen Jing
Published: May 2014

Data integrity is one of the biggest concerns with cloud data storage for cloud user. Besides, the cloud user’s constrained computing capabilities make the task of data integrity auditing expensive and even formidable. Recently, a proof-of-retrievability scheme proposed by Yuan et al. has addressed the issue, and security proof of the scheme was provided. Unfortunately, in this work we show that the scheme is insecure. Namely, the cloud server who maliciously modifies the data file can pass the verification, and the client who executes the cloud storage auditing can recover the whole data file through the interactive process. Furthermore, we also show that the protocol is vulnerable to an efficient active attack, which means that the active attacker is able to arbitrarily modify the cloud data without being detected by the auditor in the auditing process. After giving the corresponding attacks to Yuan et al.’s scheme, we suggest a solution to fix the problems.
Application of Computer Software on Exploration of a L Plate Russian Teaching Aid in Russian Teaching
Authors: Gao Jie
Published: May 2014

In order to enhancing the interesting of Russian teaching in Russian class, a L plate teaching aid was developed based on SolidWorks2012 in this paper. The design detail for desinging this teaching aid is discussed, and the distribution of the stress, strain and displacement is investigated under a 10N load. The results present that the node number of the L plate teaching aid is approximately 31829, and the grid unit number is 2044. The max stress and strain is 6.598 N/mm2 and 8.754×10-7, respectively.
Strategy for Ensuring In-Vehicle Infotainment Security
Authors: Huang Yue , Qin Gui He , Liu Tong , Wang Xiao Dan
Published: May 2014

In-vehicle networks were initially developed to operate in a closed environment and thus their security has not been concerned. However, growing attention has been paid to the convenience and entertainment value of vehicles, and thus automakers are integrating general entertainment devices into vehicles, which brings about the problem of information security. In this paper, the structure of secondary defense system was used to obstruct the Internet and autobody inner in-vehicle networks such as CAN and LIN. We built a strategy ensuring in-vehicle gateway security and an in-vehicle information software system.
Study on the Processing of Corroded Shielded Wire in Substation
Authors: Dai Ke Shun , Xiao Wen Kai , Mu Di Kun Qi
Published: May 2014

In some substations, shielded wire is made of Copper Clad Aluminum, it can be severely corroded because of the exposing in the air. To reduce the loss, an economy and effective way must be developed. Isolating the shielded wire from moisture and exposing in the air is the best way to protect it. How to replace the corroded wire which is exposing in the air, while the electric cable still working is an important problem to be solved currently. This paper introduces a replacement technology—multi-strand copper wire replacement technology, which can accomplish the replacement work of shielded wire without power outage. This will be a major breakthrough in the power industry.
Research on QoE Evaluation for Mobile Streaming Service over LTE Network
Authors: Huang Ya Jun , Zhou We Nan , You Li Yan , Chen Jian , Du Yu
Published: May 2014

The Quality of Experience (QoE) evaluation for mobile streaming service over LTE network is essential for mobile networking development. However, few QoE researches for mobile streaming service focus on LTE network. Based on the research of QoE for mobile streaming service over other networks, this paper achieves the simulation for network transmission for different videos using H.264 format on the ns-3 LTE simulation platform. What’s more, exponential model fittings are performed for not only single Quality of Service (QoS) parameter and QoE, but also multiple QoS parameters and QoE. Simulation results show that the network parameters and the Mean Opinion Score (MOS) of QoE have strong exponential relationships for streaming service over LTE network.
Research of Compatibility Quality Objective Evaluation Method of H.264 Video Codec Based on Compatibility Matrix
Authors: Zhang Jian Ru , Du Kai , Tian Hao , Ju Yong Feng
Published: May 2014

To evaluate the compatibility quality of various H.264 codecs, and promote H.264 codec benign competition in the market, this paper proposes an objective evaluation method. Firstly, this method adopts video distributor, video capture card and other facilities to collect two-way videos, one of which is reference video, and the other is the video encoded and decoded respectively; Then it utilizes SSIM algorithm to find "the best similar frame" between the two videos in order to solve the problem of “Homologous Asynchronous”; Finally, it establishes codec compatibility matrix which can objectively evaluate codec compatibility quality using the proposed five indexes. Experiments show that the proposed method is simple, and can effectively evaluate codec compatibility quality. 
One Cloud: A Secure and Anonymous Multi-Cloud Oblivious Storage Architecture
Authors: Fan Yi Jie , Qiao Zhen , Xiao Ming Zhong
Published: May 2014

We present a cross-cloud storage architecture that protects both user’s data and privacy from cloud providers or potential adversaries by leveraging the concept of Oblivious RAM on a logical layer. Our architecture allows users to conceal reading/writing operations and access sequences from clouds in order to prevent the leakage of access patterns, which may be a threat to data security. In addition, an anonymity preserving mechanism applied in our architecture makes it difficult to track users' data or confirm users' identities, which can effectively protect users' privacy. One Cloud, the proof-of-concept prototype of our architecture integrates four major cloud storage services and implements all key techniques we proposed in our architecture. We deploy it in a real-world network environment to analyze and evaluate the performance and the scalability of our architecture.
The Mode of Self-Learning Information
Authors: Han Ling Ling
Published: May 2014

In recent years, much research has been devoted to the visualization of 802.11 mesh networks; on the other hand, few have explored the evaluation of Smalltalk. after years of theoretical research into link-level acknowledgements, we demonstrate the understanding of Moore's Law. In this work, we show that even though DNS and DHCP are continuously incompatible, IPv6 and 2 bit architectures are never incompatible.
Application of Digital Technology in Heritage Protection in Urbanization
Authors: Liu Han , Ai Yong , Cao Yu , Liu Xiao Hu
Published: May 2014

In the urbanization process, attaching great importance to urban development and how to coordinate the relationship between the historical and cultural heritage protection is already new scientific ideas and urgent duties. With the development of digital technology, the degree of development of historical and cultural heritage has become an important indicator in the evaluation of a national information infrastructure. This paper discusses the application of digital surveying, digital restoration, digital recording, digital protection and other digital technology in heritage protection.
Research on Multimedia Business Network Architecture Based on Distributed IP Technology
Authors: Li Ya Qi , Guo Jia
Published: May 2014

Multimedia business network architecture is to raise the transmission rate of multimedia information, reduce the delay characteristics of the transmission process, so the multimedia service website can operate fast, reliable. In this paper we use multiple distributed IP technology to design the multimedia business network structure of IPV6. In order to verify the performance of network structure, we use IPerf software to test the performance of IPV6 multimedia business web site, and compare the performance of network under different distributed IP. By contrast, the network transmission speed of the multi distributed IPV6 is highest, delay characteristics are the shortest; and the distributed IPV6 is secondary; the worst is the general distributed IP. The transmission rate is 2.32 M/s; network delay characteristics can reach 232.21 ms, which verifies the important role of distributed IP in the multimedia business site structure. It provides technical support for the study of multimedia network.
Design and Implementation of Computer Grade Examination Registration System
Authors: Gao Zhen Dong
Published: May 2014

At present, as the nationwide examination subject,the computer grade examination has a very great number of candidates. Even in a certain point of registration, registration of candidates tend to reach thousands of scale. The huge amount of work create enormous pressure and risk for the registration work. In order to improve the efficiency of the registration work, reduce the risk of error, the paper proposed a design scheme of computer grade examination system and the realization of the process. After the test of practice, the system is feasible and reliable, which greatly reduces the workload of staffs in registration point to facilitate the majority of candidates, reducing the chances that could go wrong.
Study on the Cloud Computing in Digital Libraries
Authors: Li Dan
Published: May 2014

As a user-centered hub of communication and equipment, cloud computing could provide powerful data storage, web services and other superior internet functions. The digital libraries have to face with some technique and service problems along with many advantages relative to the traditional libraries, and all these produce the practical needs of cloud computing. Cloud computing has influenced information resources, information users, information personnel and information facilities of digital libraries with its unique advantages and then promoted the development of digital libraries.
The Application of Computer Information Technology in Food Safety
Authors: Li Dian Xin , Zhang Yan Hong , Dai Yuan Wei
Published: May 2014

With the development of human beings and the improvement of science and technology, computer information technology has played a huge role in various industries, food safety is always the focus of human attentions, and makes it more convenient and quick to grasp the dynamic of food safety due to the application of information technology. This paper will discuss the application of information technology in the detection of food safety and food safety traceability system. If you want to control our food security, you must strengthen the application of information technology.
An Improved Network Risk Evaluation Method Based on Markov Game
Authors: Liu Wen Fen , Zhang Shu Wei
Published: May 2014

Network security risk assessment is an important means of acquiring and mastering the current and future state of network, which is of great significance to maintain the safe operation of the network. This paper presents an improved risk assessment method based on Markov game that has simply changed the past, in which the risk status of the network assets were classified into fixed categories. Depending on the game relationship between fixing vulnerabilities and threat attacking, this method has more detailed characterization of the network risk. Network attacks and vulnerabilities are sorted, which reduces the state space, making the scale of model input greatly reduced, improving the assessment of large-scale network efficiency. Simulation results demonstrate the feasibility and effectiveness of this method.
Mobility Prediction-Based Link Stability Routing Protocol for MANET
Authors: Gao X.M. , Xia J.H.
Published: May 2014

In mobile ad hoc networks, node mobility causes frequent link failures, thus invalidating the routes containing those links. Once a link is detected broken, an alternate route has to be discovered. That will impose significant affect on the route stability and the overall performance of the network. We suggest discovering contained stable links routes based on fuzzy control. When mobile node S wishes to send a packet to a destination mobile node D, node S transmits a ROUTE REQUEST (RREQ) message which contains its velocity and direction as a single local broadcast packet. When one mobile node i (it is not D) receiving RREQ, it first gets the velocity and direction of previous node, then estimates the link stability between two nodes based on fuzzy logic. When the link stability come up to a certain standard, node i adds its address to RREQ and forward it, otherwise, discard it. Simulations show that the proposed PLSR (Mobility Prediction-based Link Stability Routing Protocol) outperforms DVMP (Distance Vector protocol with Mobility Prediction that uses GPS) [8].
The Empirical Study of Cloud Computing and Companies’ Information Construction
Authors: Ji Xiang , Han Yao Jun , Liu Chun Mei
Published: May 2014

The traditional information construction has confronted many problems, such as investment structure, integrity and repeated construction, which affected the effect of information construction. Many studies believe that cloud computing can solve the problems. Based on the former researches, this paper develops cloud computing and information construction scale. The statistics of companies which use and do not use cloud computing were collected. This paper use statistical analysis and structural equation to find the relationships between cloud computing and information construction. The result shows that some cloud computing plan can solve some problems effectively. Some suggestions were given to the companies which want to use cloud computing and this research has broaden the study method of this topic.
Design and Implementation of Embedded Network Interface Based on ATmega128
Authors: Xia Fu Yang
Published: May 2014

The solution of Ethernet interface based on the core of ATmega128 and its architecture of hardware was illustrated in this paper. The operating system of μC/OS-II was transplanted to the system and the improvement of TCP/IP protocol was implemented. The paper dwelled on the module structure of TCP protocol which based on message and function of μC/OS-II. Finally, the test of systemic performance was presented.
Study on Embedded TCP_IP Protocol and ARM Implementation
Authors: Zhang Jin Hai
Published: May 2014

Rapid development of Internet networks and backbones technology makes communication based on packet-switching technology, quality and performance have been steadily improved. Existing embedded Internet scenarios, there are high costs, insufficient to achieve complex control functions such as. Embedded devices in the application of limited hardware resources, depending on application requirements simplified TCP/IP protocol. Research of embedded system based on TCP/IP to embedded information product development technology will undoubtedly have an important value.
Analysis of Chemical Constituents in Jackfruit Peel by UPC2/Q-TOF-MS Method
Authors: Gong Xiao , Yu Hai Long , Qi Ning Li , Peng Shao Dan , Lin Li Jing
Published: May 2014

A new method for the analysis chemical constituents in jackfruit peel by ultra performance convergence chromatography (UPC2) was developed for the first time. The extraction of jackfruit peel was carried out under classical heating with ultrasonic wave and extracted with ethyl ether. The analytes were separated on an ACQUITY UPC2 HSS C18 SB column with a gradient elution (80:20 to 99.8:0.2) of mobile phase consisting of CO2 and methanol. The result indicated that UPC2/Q-TOF-MS is a simple, rapid, reliable and effective method to analyze the biochemical compounds in jackfruit peel. A total of 65 compounds were identified, including acids, esters, alcohols, and pyrazine, etc.
PDE Computing Model of Internet Virtual Simulation Based on ANSYS
Authors: Tang Jin Gen , Deng Ji Yuan
Published: May 2014

This paper establishes a parallel Internet virtual simulation PDE computing model based on quasi-linear, linear and nonlinear mathematical principles of computer, and obtains a partial differential equation for parallel computing system. The parallel computing can greatly improve the speed and accuracy of computer virtual simulation system. In order to validate the calculation, the paper uses ACC-8S interface board to realize the parallel link of computer, and two pieces of different material deformation in machining process was simulated by ANSYS software, and it concludes the contour of deformation . Finally, the system has been applied to the volleyball match virtual simulation system, and it gets the system response performance through simulation and calculation, which provides a technical reference for the training of volleyball players.
Study on Application of Ethernet Passive Optical Network in Auxiliary Control System of Smart Substation
Authors: Yang Zhen
Published: May 2014

Ethernet passive optical network is a new optical access network technology characterized by low cost, high bandwidth, little electromagnetic interference, strong scalability, and powerful compatibility. The auxiliary control system of smart substation includes video surveillance system that carries large data volume but raises low real-time requirement. Constructing the auxiliary control system in the station with Ethernet passive optical network can effectively solve the problem of export bandwidth allocation without using a switch, thus greatly saving the investment in network construction and the costs for life-cycle maintenance. It is therefore regarded as an efficient new networking scheme for the auxiliary control system of smart substation. This paper analyzes the feasibility of applying Ethernet passive optical network technology in the auxiliary control system of smart substation, proposes a program to construct a 220kV smart substation using Ethernet passive optical network, and conducts an economic comparison, in an attempt to provide a new solution for the data transmission of the auxiliary control system of smart substation.
Research and Implementation of an Augmented Assembly System Based on Markers
Authors: Lei Guo Jing , Chen Jie
Published: May 2014

The traditional virtual assembly technology requires building a true three-dimensional scene of all the assembly data, leading to complex modeling, low sense of reality and efficiency of real-time interaction. An augmented assembly system based on markers is proposed. The camera calibration technique is studied to get its inside and outside parameters first; a 3D registration algorithm based on markers is used to determine the exact location of virtual objects in the real scene then; the augmented assembly system is constructed according to the characteristics of virtual assembly finally. Experimental results show that the augmented reality technology makes the assembly steps appear in front of the staff intuitively and allows them to complete the actual assembly correctly, improving the sense of reality of the operation and interaction efficiency.
Merkle Hash Tree Based Deduplication in Cloud Storage
Authors: Li Chao Ling , Chen Yue
Published: May 2014

To deduplicate the sensitive data in a cloud storage center, a scheme called as MHT-Dedup that is based on MHT (Merkle Hash Tree) is proposed. It achieves the cross-user file-level client-side deduplication and local block-level client-side deduplication concurrently. It firstly encrypts the file on block granularity, and then authenticates the file ciphertext to find duplicated files (Proofs of oWnership, PoW) and check the hash of block plaintext to find duplicated blocks. In the PoW protocol of MHT-Dedup, an authenticating binary tree is generated from the tags of encrypted blocks to assuredly find the duplicated files. MHT-Dedup gets rid of the conflict between data deduplication and encryption, achieves the file-level and block-level deduplication concurrently, avoids the misuse of storage system by users, resists to the inside and outside attacks to data confidentiality, and prevents the target collision attack to files and brute force attack to blocks.