bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Particulate Reinforcement Electroless Plating on Properties of SiC/Fe Composite
Authors: Zhang Yue Bo , Zong Bernie Ya Ping , Jin Jian Feng , Cao Xin Jian
Published: May 2014

SiC particles were coated with copper and nickel respectively through electroless plating process to investigate the plating effect on mechanical properties of SiCp/Fe composites. It shows that tensile strength and final elongation of the composite improve significantly after the plating treatment of SiC particles. Compared with the composite reinforced by uncoated one, the maximum increase of tensile strength is 20.1% reinforced by nickel-coated SiC particles with the particle size of 21μm and volume fraction of 20%. The maximum tensile strength among the SiCp/Fe composites reaches 928.3MPa where the composite is reinforced by nickel-coated SiC particles with the particle size of 13μm and volume fraction of 10%. In contrast with that reinforced by uncoated SiC particles, the highest increment of final elongation is 19.6% reinforced by copper-coated SiC particle with the particle size of 13μm and volume fraction of 20%. Electroless plating on SiC particle surface may effectively prevent the direct contact in the interfaces between the SiC particles which can reduce the risk of micro-crack formation, so as to improve the properties of composite.
Design and Implementation of Shield State Detection System for Charging Pile Port
Authors: Xie Ke Feng , Zhang He , Ding Li Bo , Hu Bin
Published: May 2014

The shield based on charging pile port can ensure safe use of charging pile, and it is an important device. For achieving to recognize and process the stuck state of the shield between the shield open and closed, This paper puts forward a method to detect the stuck state, which based on velocity feedback, and designs detection circuit including the limit position and the speed, and determination procedures of the shield’s state of motion. the limit position is detected by photoelectric sensor, and the speed is detected by magnetic sensor. Test result shows that the system can feedback the limit position and the stuck state of the shield instantaneously, and achieve automatic control between the shield open and closed with control correctly and safely.
Design of Hazard Installations Monitoring System Based on WSN
Authors: An Kun , Yu Jun Qi
Published: May 2014

With the gradually development of wireless sensor network technology, intelligence of hazard monitoring has been promoting. A major hazard sources monitoring system based on wireless sensor network (WSN) is proposed to solve problem of deploying the monitoring system.Compared it with the conventional supervisory control and data acquisition system,monitoring system based on WSN solves the problem of complex wiring, sophisticated maintenance, etc. The hardware platform is composed of IRIS series node and Stargate Netbridge Gateway. The application is developed by nesC based on TinyOS. EKo View that embed in Stargate display and analyze the data. Monitoring information can be explored by enterprise and department of work safety quickly and intuitively via the web.
The Detection Fusion Algorithm of Intellectual Vehicles Based on Laser Radar in Traversable Areas
Authors: Liu Han Nuo , Hu Xiang
Published: May 2014

The safety traffic of intellectual vehicles is mainly carried out through environmental sensory perceptual system. This thesis uses the data collected by the vehicle-mounted laser radar and puts forward to a kind of improved straight-line feature pick-up algorithm SEF-LSM-BO. It experiments on the four kinds of algorithm using the same frame of laser radar data. It turns out that compared with SEF, LSM and SEF-LSM; SEF-LSM-BO can quickly and accurately detect and merge boundaries, mark surrounding obstacles and provide traversable areas.
Research of Tracking Algorithm for Moving Object Based on Video Sequence
Authors: Han Zhe Xin , Zhang Bo Hu
Published: May 2014

The study of tracking algorithm of moving objects is a key technique in computer vision; therefore, the work done by this thesis has important theoretical significance and wide practical value. An algorithm based on the improved three-frame-differencing is introduced in this paper. Firstly, three continuous edge images are obtained by edge extract from three continuous images, then, the motion information is detected with three-frame-differencing, finally, the target is extracted by threshold segmentation and morphology. The method is simple in calculation. The experimental results show that the strong robustness and can accurately detect the moving target. In addition, using the algorithm based on the characteristics of the objects can clearly record the object’s trajectory. Experiments show that the algorithm is effective and feasible in the motion object detection.
Study on Coupling Factors and Decision Model of Pattern Recognition and Intelligent System
Authors: Guan Xiao Qing
Published: May 2014

Subjectivity education embodies the basic requirements of ideological and political education and has a profound meaning to improve ideological and political education effectiveness. Through practical experience in the field of ideological and political education, research experience with the actual investigation, and a combination of theory with practice, the author researches on coupling factor of subjectivity ideological and political education and the actual situation, with the use of factor principal component analysis to establish countermeasures model and makes in-depth study and optimization of the ideological and political education teaching science concepts and strategies.
A New Video Encryption Algorithm Based on the Complex Chaotic System
Authors: Li Ling Hao , Tong Xiao Jun
Published: May 2014

In this article,a new type of video encryption system based on complex chaotic model was proposed. The algorithm selects the more complex the chaos model,generates pseudo random sequence to used encrypt the key data of encryption process,the experimental results show that this encryption algorithm has high security,fast encryption speed.
Preparation and Characterization of GNP/Nylon Composites
Authors: Xu Bao Feng , Lin Zhi Dan , Chen Jiang Ming , Lin Jun
Published: May 2014

Graphene nanoplatelets (GNP) and nylon (PA) have been often used as thermal filler and matrix and respectively to produce composites. In this work, PA6/PA66/GNP thermal composites were prepared via a melt blending method. Mechanical properties, morphology, and thermal properties of PA6/PA66/GNP composites were investigated. Because the GNP is very expensive, we investigated to use Al2O3 and graphite and examined the characteristics of the prepared composites. Thermal conductivity values of PA6/PA66/GNP composites remarkably increased with increase of GNP contents mainly via layered dispersion in nylon matrix. The thermal conductivity of composite containing 50 wt % of GNP was measured as 5.03 W·m–1·K–1 at 30 °C, indicating an increase of more than 15 times compared with that of the neat PA6. When the Al2O3 was replaced for GNP, the thermal conductivity of composites decreased, but the mechanical properties improved. When graphite was used to replace for GNP, thermal conductivity basically remained unchanged but mechanical properties decreased.
XML Data Mining Model Based on Rough Set Theory
Authors: Li Wei Ping , Yang Jie , Wang Gang
Published: May 2014

With the emergence of a large number of XML data, proposed the new challenge to data mining field. Traditional data mining is based on the relational database and data warehouse, how to dig out in the form of XML data becomes a hot research issue. Due to the XML document is a kind of semi-structured data, using the traditional data mining methods for mining of XML data is not applicable. Puts forward a XML mining model based on rough set theory, and has carried on the experiment, the results show that using rough set theory to XML data mining is feasible.
Mining Frequent Itemsets Algorithm Based on Compression Matrix
Authors: Lin Zi Zhi , Shu Si Hui
Published: May 2014

Association rule mining is one of the most important and well researched techniques of data mining. The key procedure of the association rule mining is to find frequent itemsets. In this paper, a new mining frequent itemsets algorithm based on matrix is introduced. Frequent itemsets are obtained by compressing the transaction matrix efficiently by a new strategy. The new algorithm optimizes the known mining frequent itemsets algorithms based on matrix given by some researchers in recent years, which greatly reduces the temporal complexity and spatial complexity. It is more feasible especially when the degrees of the frequent itemsets are high.
A UWB-2PPM Reconstruction Algorithm without a Priori Knowledge of Pilot
Authors: Yin Hai Bo , Yang Jun An , Gong Jie , Wang Wei Dong
Published: May 2014

Compressed Sensing is very efficient in reducing the relatively high sampling rate. But when it comes to the channel estimation of uncooperative communication, the common CS reconstruction algorithms seem impractical to implement since a pilot is required, which is difficult for uncooperative communication. In this paper, we combine the sparsity transform dictionary, which is formed by a sequence of delays of the template signal, together with the idea of alternative minimization to improve the traditional CoSaMP algorithm to reconstruct under-sampled UWB-2PPM signal transmitted by unkown complex channel without a knowledge of pilot. The theoretical analysis and simulations show that the proposed algorithm is capable of reconstructing the original transmitted signal without a pilot.
The Algorithm of Obtaining 3D Point Cloud Data in Ground Fissure
Authors: Xu Ming Xia , Li Bin , Feng Ming Xiang , Xu Yong Long , Wang Guan Hu
Published: May 2014

In this paper, we focus on the problem of how to obtain 3D cloud point data from different data source in ground fissure. We mainly analyzed the spatial morphology and the data characteristics of the ground fissure. The curve formula is constructed in engineering geological section and designed the algorithm of obtaining 3D point cloud data. This algorithm has been verified in Xi’an area and obtained satisfactory results. The research achievement provides a new method for using multi-source data on 3D modeling ground fissure.
Ancient Ceramics Samples Classification Based on Clustering Analysis
Authors: Zhou Yong Zheng , Zang Chen Qiang , Chen Li Wei , Yu Qìng
Published: May 2014

We research on 44 ancient ceramics made in Jingdezhen through previous dynasties about its classification problem by K-means Cluster and K-medoids Cluster. We got on classification results and analysed the classification effectiveness of different classification methods. The study has the reference value about the identification of the ancient ceramics.
A Study on Optimization Technology of Visual Simulation Model Based on Creator
Authors: Lei Hua Feng , Shan Ning , Wang Hao
Published: May 2014

Establishing 3d model is basis for visual simulation, it has a great effect on real-time and authenticity in process of rendering and taking on Vega visual simulation platform. Therefore, reasonably optimizing model is very important for solving the contradiction between real-time and authenticity and realizing effects of establishing authentic and fast establishing in visual simulation. This paper will analyze how to use modeling optimization techniques to optimize armored vehicle model based on Creator, so as to make it better to meet immersive and interactive requirements in visual simulation for human, vehicle and driving environment, and perfectly present real-time and authenticity effect for armored vehicle in visual simulation.
Large Ship Fluidsolid Coupling Dynamic Mathematic Model with Explicitly Form
Authors: Zhang Kai Yin , Lan Min , Huang Yan , Jin Sheng Ping , Zhang She Sheng
Published: May 2014

In ship dynamics research field, large ship moving on sea water is a hot research project of water transportation. The fluidsolid coupling dynamics model of large ship is built by using time-dependent solid dynamics theory and fluid dynamics theory of ship. The linear analysis solution formula of ship deformation is obtained from the linear fluid-solid coupling equation. The hull displacements are obtained and the maximal displacement is found when the wave-hull resonance number becomes an integer.
Numerical Simulation of Anomalous Vortex Beams on Different Fractional Fourier Transform Planes
Authors: Dai Zhi Ping , Yang Zhen Feng , Yang Zhen Jun , Pang Zhao Guang , Zhang Shu Min
Published: May 2014

The properties of fractional Fourier transform of anomalous vortex beams are studied. A new type of analytical expression of fractional Fourier transform for anomolous vortex beams is obtained. The properties of anomolous vortex beams on different fractional Fourier transform planes with different parameters are illustrated. The results show that the anomolous vortex beams always has a doughnut profile, the distribution of intensity on different fractional Fourier transform planes highly depends on the fractional order and the beam parameters, such as the beam order and the topological charge.
Simulation on the Mathematical Model of Two-Dimension Rotation Curve of Volleyball Serving
Authors: You Yun Qi
Published: May 2014

The analysis of two-dimensional rotation and impact properties of volleyball serving benefits detailed force analysis during the process of hitting and serving. In this paper, a method combining modeling and actual impact properties analysis is proposed and utilized to analyze two-dimensional rotation curve of volleyball. And the actual serving, sideways position, backhand hit are taken as example to carry out a detailed analysis of the process, and build up the model to reflect the effect of speed, arc, rotation and other factors on the two-dimensional rotation in volleyball serving. The test results show that this method has a good guiding significance for the analysis of the actual volleyball.
Component-Based Ranking Strategy for Evolutionary Optimization with Sparse Constraints
Authors: Wu Yu , Liu Jing Wei , Xie Yue Hong
Published: May 2014

Most constraint-handling methods in constrained evolutionary optimization usually take advantage of only the valuable information of feasible solutions, while they don’t exploit adequately the information from infeasible ones. In this paper, a concept of “feasible component” is introduced to recognize the characteristics of diverse information extracted from infeasible solutions. Then a component-based ranking strategy is proposed for evolutionary optimization with sparse constraints by integrating feasible components and the idea of stochastic ranking. Experimental results on several problems with sparse constraints show that the component-based ranking strategy performs better than the stochastic ranking.
Arithmetic Research on Data Mining Technology and Associative Rules Mining
Authors: Zhu Jian Xin
Published: May 2014

Data mining is a technique that aims to analyze and understand large source data reveal knowledge hidden in the data. It has been viewed as an important evolution in information processing. Why there have been more attentions to it from researchers or businessmen is due to the wide availability of huge amounts of data and imminent needs for turning such data into valuable information. During the past decade or over, the concepts and techniques on data mining have been presented, and some of them have been discussed in higher levels for the last few years. Data mining involves an integration of techniques from database, artificial intelligence, machine learning, statistics, knowledge engineering, object-oriented method, information retrieval, high-performance computing and visualization. Essentially, data mining is high-level analysis technology and it has a strong purpose for business profiting. Unlike OLTP applications, data mining should provide in-depth data analysis and the supports for business decisions.
Multi-Path QoS Routing Algorithm Based on Disjoint Nodes for Mobile Ad Hoc Networks
Authors: Tao Yang , Wang Ya
Published: May 2014

. To meet the needs of voice, video and other large multimedia data transmission services, a new multi-path routing protocol, which is named MP-QAODV, with QoS guarantees for MANET was proposed. The Routing method based on disjoint nodes and backup multiple paths was used in the protocol. Through introducing two weights constraints based on single-source and single-path network model, a non-deterministic optimal constraints algorithm was proposed. After introducing and instantiating the path stability factor and the path length factor, mathematical model of their relationship was built. The mathematical model was used to improve AODV protocol and the improved protocol has QoS guarantee. Simulation results showed that MP-QAODV is better than AODV, AOMDV in the aspects such as average end to end delay, packet delivery ratio and route control overhead. The experiment demonstrated the effectiveness of MP-QAODV protocol.
MPTCP Congestion Control Algorithm Based on the Fairness of Bottleneck
Authors: Tao Yang , Huang Peng
Published: May 2014

Mobile devices equipped with multiple network interfaces can increase their throughput by making use of parallel transmissions over multiple paths and bandwidth aggregation, enabled by the multipath Transport Control Protocol (MPTCP). However, the existing MPTCP congestion control algorithm adopt a relatively strict definition of the fairness, although to some extent could ensure the fairness of traditional TCP connections, but the total throughput of MPTCP will be limited, which can not make full use of network resources. To solve this problem, this paper propose a congestion control algorithm (FBCC) based on the fairness of bottleneck. The core idea of FBCC is to set up individual fairness factor for each shared bottleneck. NS3 simulation results show that FBCC algorithm not only solves the problem of fairness, but also effectively improve the total throughput of MPTCP connection.
The Ethical Reflection on Nanotechnology Applications in the Field of Sports
Authors: Qi Zhang
Published: May 2014

With the development of nanoscience and technology, its application has been widely used in the sports scientific research, almost involve all fields. This article mainly discusses the characteristics of nanometer technology and its application in the field of sports equipment. On this basis, outlook the application prospect in the field of nanotechnology in sports equipment according to the present situation and the trend in the development of nanotechnology.
Occupant Evacuation Based on Cellular Automata Involving Repulsion
Authors: Jiang Xue Ling , Long Chao Yun , Qin Shui Jie , Wang Li Ping , Dong Jiang Hui
Published: May 2014

The dynamic parameter model based on cellular automata was not taken into account interaction between pedestrian and environment,it resulted in quite different from that of in real life.So a new model was proposed by taking into account one of the interactions:repulsion.In the present work, evacuation involving repulsion problem was studied in the room with single exit.The expanded model based on dynamic parameter model is introduced by using the quantitative of repulsion.The model could be used to explore the different degree of panic through repulsion.The corresponding simulations of pedestrian evacuation with repulsion were carried out. It extends the constraint where the original model was applied. The improved model is more accordance with actual circumstance than the original dynamic parameters model.The improved model is not only expected to model evacuations in detail but also has high efficiency.
Well-Posedness for Parametric Generalized Strong Vector Quasi-Equilibrium Problem
Authors: Zhao Ya Li , Zhu Lin
Published: May 2014

In this paper, well-posedness for parametric generalized strong vector quasi-equilibrium problems is studied. The corresponding concept of well-posedness in the generalized sense is also investigated for the parametric generalized strong vector quasi-equilibrium problem. Under some suitable conditions, we establish some characterizations of well-posedness for the parametric generalized strong vector quasi-equilibrium problem.
Structural Undamped Free Vibration Analysis Based on Coefficient Reduced-Basis Method
Authors: Li Yong Hong , Li Shu Zhan
Published: May 2014

Using reduced-basis method, design parameters are needed to be separated from the linear elastic operators, which is time-consuming. So, an improved reduced-basis method - coefficient reduced-basis method is introduced to calculate the low order natural frequencies and mode shapes of structure. In this method, the computing process of design parameters separated from the linear elastic operators is simplified. In this paper, a truck frame is taken as an example, frequencies and mode shapes from coefficient reduced-basis method are obtained. Comparing with results from the finite element method, coefficient reduced-basis method can obtain accurate results efficiently.
Design and Verification of a Scalable Enhanced High Performance DMA Architecture for Complex SoC
Authors: Zhao Hua Long
Published: May 2014

As the demand of higher image quality and greater processing capabilities are growing, obtaining higher data bandwidth for on-chip processing is becoming a more and more important issue. DMA (Direct Memory Access) component, as the key element in stream processing SoC (System on Chip) [1], should be deeply researched and designed to satisfy the high data bandwidth requirement of processing units. In this paper, we introduce a scalable high-performance DMA architecture for complex SoC to satisfy rigorous high sustained bandwidth and versatile functionality requirements. Several techniques and structures are proposed in this paper. A state-in-art verification environment is built for our design to fully verify its functionality. At the end of the paper, the tape-out results are provided. The whole implementation has been silicon proven to be functional and efficient.
Improved Unscented Kalman Filter Based on Decimation in Frequency Domain Fast Fourier Transform for Attitude Estimation Applied to Underwater Gliders
Authors: Huang Hao Qian , Chen Xi Yuan , Liu Hu , Xu Yuan
Published: May 2014

In order to estimate the attitude fast and accurately for the underwater glider using the lower cost and lower power underwater navigation system, this paper designs a new underwater navigation system which is made up of the inertial sensors aided the magnetometer and proposes an improved unscented Kalman filter based on decimation in frequency domain fast Fourier transform (UKF-DF). UKF-DF makes better use of the estimate advantage of UKF in the nonlinear system, and in this basis DIF-FFT is integrated into UKF to increase the speed of calculation. Therefore, the attitude of a glider can be estimated fast and accurately. The real vehicle experiment is done to assess the performance of the proposed UKF-DF algorithm, the experimental results show that the attitude convergence of UKF-DF is better than EKF (extended Kalman filter) and the attitude estimated by UKF-DF is more precise than EKF.
Parameters Optimization of Restraint System by Analyzing the Dissipation Characteristics of Occupant Energy in Vehicle Frontal Impact
Authors: Liu Yuan Peng , Zhu Cong
Published: May 2014

Belt and airbag are the most important protection devices in vehicle frontal crash, which can have the best protective performance when only they were well matched with vehicle body structure. In this paper the theoretical guidance for optimizing belt and airbag parameters is researched, in order to improve the effect and efficiency of parameters optimization of restraint system. Firstly, a simulation model for occupant restraint system is developed based on the finite element theory combined with multi rigid body theory, and its effectiveness for simulating the occupant dynamic response in frontal impact is validated. Then, the energy dissipation characteristics of occupant head and chest in typical frontal crash are analyzed based on the developed model. Lastly, the adaptive level of restraint system parameters are evaluated according to the dissipation characteristics of occupant energy, and theoretical guidance for parameters optimization are summarized based on the evaluation. The analysis results indicate that: (1) airbag with low stiffness cannot fully utilize the deformation of vehicle body to dissipate the energy of occupant head, but may increase the risk of head injury; (2) belt with high stiffness would apply a big force to occupant, which could increase the compression amount of chest and may increase the risk of chest injury.
Pressure Sensing Characteristic of Fiber Bragg Grating Based on Diaphragm-Cantilever Beam
Authors: Gao Yu Fei , Liu Chao , Mu Hai Wei
Published: May 2014

In this paper, a compounding pressure sensing structure of Fiber Bragg Grating (FBG) based on circular plate diaphragm and equal strength cantilever is proposed. Based on mechanics of materials principle and mode coupling theory, a linear expression between uniform pressure and central wavelength shift of fiber grating fixed on the surface of the cantilever has been achieved. The pressure shift of fundamental modes resonance wavelength is investigated by means of simulation method. The results show that the resonance wavelengths are linearity increased with ambient pressure. The conclusion is of great aid to the application of the fiber Bragg grating.
Simulation and Analysis of Arrays Formed by HF Fishbone Antenna
Authors: Zhang Zhi Gang , Yin Li , Li Ting
Published: May 2014

This paper analyzes the radiation characteristics of fishbone antenna arrays and concludes its optimum set of array formation. In order to study the feasibility of apply fishbone antenna into pashed array, the common fishbone antenna array is analyzed and simulated by the method of moments. It mainly calculated the radiation properties of two-element array, four-element array and six-element array under the linear array, rectangular array and sector array respectively. Comparing characteristics of different number of array element under the same array type and the different array types under the same number of array element, it suggests that two-element array is the most appropriate array type when sector arrayed, and the array types of 3 x 2, 2 x 2 and 1 x 2 have relatively good effect of beam scanning in low frequency with phase shift.
Mining Algorithm for the Core Node in the Complex Network of E-Commerce
Authors: Xiao Bing
Published: May 2014

Through digging out the core suppliers and core customers from the numerous suppliers and customers in the complex network of E-commerce, it contributes to reducing the adverse selection for the consumers and moral hazards for the operators caused by information asymmetry. Meanwhile, it is very meaningful for the credit risk protection in the complex network of E-commerce. On the basis of the references to the White and Smyth algorithms, in this paper, improvements from the White and Smyth algorithms are made herein, combining several features of the E-commerce complex network such as competitiveness, incomplete information and unsymmetrical information. In addition, an algorithm for mining the key nodes in E-commerce complex network is put forward, and applications are explained by instances.
Traffic Management Staff System Based on MARKOV Modal
Authors: Liu Xing Wei , Song Jun , Cheng Ya Hui , Xu Yi Bo , Ma Jian Long
Published: May 2014

Social progress absolutely doesn’t means a situation that sacrificing the benefits of most people to satisfy the benefits of the minority. This paper will discuss some questions surrounded with the social resources human resource supply chain. This paper also discusses whether ‘promotion changing pattern of common progress’ can be applied to all kinds of industries, and what natural and cultural conditions to meet so that achieving social and human situation [1]. We have found that MARKOV model meet the promotion of such progress law. At the same time, using the MARKOV modal, this article has done a comparative analysis based on a number of growth historical data. We extract an appropriate mathematical model to predict the human resource after correcting the old model. According to the mathematical model we extracted, we analyze and predict the result of questions. Finally, the article give the models and results obtained in the form of web pages so that making readers and managers decide and read more visually and better.
Three Dimensional Reconstruction of Die Design Based on Clustering Algorithm and Fuzzy Control
Authors: Liu Han
Published: May 2014

Based on the fuzzy control cluster algorithm, we establish the modern charm mathematical model of traditional toys with UG software, and design the 3D reconstruction system of traditional folk toys through program. In order to verify the effectiveness of the system, we use the UG software to do 3D reconstruction simulation on the modern charm of traditional toys, and obtain the 3D key point capture graph. Through the key point we construct 3D key line of toys. From the statistics of performance, the maximum frequency of key point reconstruction is up to 8500 times /s, which has good performance. Finally, through the UG 3D reconstruction we get the modern fashion reconstruction design for traditional toy, which provides the technical reference for the study of traditional folk toys.
Application of Wavelet Transform in Transient Signal
Authors: Wang Zhe Yuan , Jiang Li , Xu Ming Hu , Zheng Wei Gang
Published: May 2014

In this paper, analog signals will be built upon the dynamic load of transient signal with the help of MATLAB simulation method and wavelet transform concept, and analyze it with the application of wavelet denoise method, whose good effects would be proved by simulation experiment. To dispel noise from noisy signal through wavelet resolution theory approach based on collection of simulation experiment and theory. In conclusion, wavelet kernel function and decomposition have direct effect to denoise. In this paper, we’ve made an analysis to electric power transient signal characteristics by combination of wavelet basic theory and simulation experiment
An Algorithm for Image Enhancement via Sparse Representation
Authors: Zhang Li Liang , Liu Xi Ling , Zhang Shi Liang
Published: May 2014

This paper presents an approach of enhance images subjective visual quality, based on image sparse representation. Firstly, comparativing and analysing the performance of the current several popular image denoising methods by two kinds of different content image, and using the K-SVD, MB3D and CSR algorithm, we obtain clean images namely the images noise removing. Then, decomposing the already denoised image into both cartoon and texture component by Morphological Component Analysis (MCA ) method, and superresolution the cartoon part and enhance the contrast of the texture in image. Finally, fusion between the cartoon and the texture gain the desired image.
Automatic Liver Lesion Extraction from CT Images Based on Distance Regularized Level Set Evolution and Region Growing
Authors: Gao Feng Lian , Huang Lian Fen , Wang Jia Kun , Shuai Hai Tao , Sun Jian Jun , Huang Yue
Published: May 2014

Current diagnosis with computed tomography (CT) imaging relies heavily on doctors’ clinical experience and it is difficult to accurately identify and localize lesions from thousands of CT images. Therefore, computer-aided diagnosis with automatic lesion extraction will be helpful for doctors in the diagnosis of liver diseases. In this paper, we proposed a new method for automatic liver lesion extraction from CT images by combining DRLSE (distance regularized level set evolution) and region growing. The method was applied in abdominal CT images with a single liver cancerous lesion and multiple hemangioma lesions at different locations. The results demonstrated the feasibility of our method for automatic lesion extraction with improved diagnostic accuracy and time efficiency.
BM-LRMR: Single Image Reconstruction Using Block-Matching and Low-Rank Matrix Recovery
Authors: Li Bin , Ming De Lie , Sun Xiao , Zhang Shui Ping , Dou Hao , Tian Jin Wen
Published: May 2014

In this letter, a method based on block-matching and Low-rank matrix recovery (BM-LRMR) is proposed for single image reconstruction. While existing approaches usually use many image sequences to restructure new images, our method tries to use a single image to realize the image reconstruction. In our algorithm, the single image is firstly partitioned into blocks. Then a block-matching technique is employed in grouping and constructing the approximately low-rank matrix. A low-rank matrix recovery is used in low-rank matrix decomposition. Finally, a weighted average strategy is using to compute a final estimate of the image by aggregating all of the obtained local estimates. Experimental results on different applications demonstrate the proposed model can work excellently for single image reconstruction.
The Method of Electric Power Communication Network Time Delay Control Based on T-MPLS
Authors: Yao Qi Gui , Yu Hai , Yu Yue , Wang Wei
Published: May 2014

Based on the fabric of national electric power system, the types and causes of delay in the network is investigated. The evolution guideline is deeply discussed. Mechanism in T-MPLS such as packet switching, plastic limit, automatic protection switching and multi-service package adapter are utilized to improve the time delay of the power communication network. It is to lay the foundation for the next generation of Smart Substation.
Active Networks Considered Harmful
Authors: Chen Wu , Wei Hong Ping
Published: May 2014

The improvement of erasure coding has deployed scatter/gather I/O, and current trends suggest that the development of systems will soon emerge. After years of compelling research into lambda calculus, we disconfirm the visualization of superpages, which embodies the confusing principles of e-voting technology. We concentrate our efforts on confirming that Lamport clocks can be made virtual, ambimorphic, and stochastic.
The Study of Electronic Structure and Optical Properties of 2H-SiC
Authors: Zhang Fu Chun , Cui Hong Wei , Ruan Xing Xiang , Zhang Wei Hu
Published: May 2014

Electronic structure and optical properties of 2H-SiC are calculated by the first-principles calculation based on density functional theory, thus to give out the relation of electronic structure and optical properties of 2H-SiC material in theory. It is theoretically predicated that the 2H-SiC is an indirect band gap semiconductor with all valence band maximum located at Γ point in Brillouin zone and conduction band bottom located at M point of Brillouin zone. The optical property of the 2H-SiC for the band-to-band transition is analyzed by using the calculated band structure and density of state. The result of optical properties shows that obvious dielectric peaks appear in 0~10eV which absorb the band edge to correspond to the ultraviolet band. Therefore, 2H-SiC material maybe become the excellent ultraviolet semiconductor material.
Research of Optimizing Computer Network Based on Dynamism Theory
Authors: Cai Lin
Published: May 2014

With the fast development of computer network services, the needs of every service is developing. To guarantee a effective computer network service we should improve the key quality of service (QoS) of each computer network service. Related QoS evaluating indexes mainly include throughput, delay time and packet loss of network. A optimizing method offers a theory support to a better computer network service quality and dynamic optimization is one of the most popular theoretical tools to study resource allocation and task scheduling problems in computer systems and computer networks. This text mainly introduces Markov decision process and Markov decision Petri nets.
Application and Realization of Workflow Engine in OA
Authors: Yang Xiao Hong , Chen Yue Feng , Zhong Xiu Yu
Published: May 2014

The workflow technology is the core of OA (office automation), and the workflow engine determines software quality of OA. We study the main stream of workflow—JBPM, put use of it to OA. We also make requirement analysis of workflow management module, and design and implement it. The result shows that the framework has better stability, lower couple and better maintenance. The system improves the traditional structure of web application component, which makes more suitable to the existing solution of object persistence and system structure of load balance in network.
Geospatial Database Design for China – Kazakhstan Tourism Resource Information System
Authors: Aniwar Gulziyra , Ma Jing Song , Jarmuhamet Yliyar , Miysa Teliekebieke
Published: May 2014

This paper discusses the design method to construct the geospatial database for the China - Kazakhstan tourism resources information system, especially focuses on the design of the relational database structure for transportation network analysis. By expressing the logical structure of graph theory as four relational database tables, i.e. junction table, edge table, junction-edge connectivity table, and turning table, this topological structure can effectively express urban roads and inter-city roads within a relatively larger area and build complicated road networks, and it also can be applied to the shortest path analysis on different spatial scales.
Using Zhang Diagram in System Design and Programming
Authors: Zhang Wei , Pan Lan
Published: May 2014

There is a gap between system design and programming in software field. System designers do not use the same kind of language to describe a system as people do on programming. The paper proposes a unified Zhang diagram, which is adaptive to both sides. This diagram uses several simple symbols, connectors and reserved words to represent a whole schema of a system. The experiment shows the efficiency of this diagram in system design and software developing.
A Computer-Controlled In Situ Analysis Instrument Based on Laser Induced Breakdown Spectroscopy
Authors: Wang Jie , Xu Ming Jun , Shi Lin Li , Shi Qi , Wang Yong Chao , Duan Yi Xiang
Published: May 2014

A portable LIBS device capable of analyzing material component especially for drilling fluids in the drilling site was designed and assembled. A position adjustable apparatus was developed, which permits the applications in outdoor environments. The alkali metal elements such as potassium (K), calcium (Ca), sodium (Na), magnesium (Mg), aluminum (Al), have been detected in the drilling fluids using the newly developed portable LIBS device. The results show that the device well performs qualitative analysis, and also has potential predominance for the quantitative analysis in-situ.
The Research and Simulation on Optimization Method for Diverse Network Intrusions
Authors: Kang Feng , Zeng Xiao Ping , Jiang Xiao Hui
Published: May 2014

In current complex network environment, various kinds of attacks are mixed together forming the attack group. The diversity of the attack group leads to diverse attack signatures, which cannot be constrained by uniform conditions. Based on mixed attack signatures estimation model, the paper proposes a detection method for mixed and diverse attack groups. The paper classifies the different attacks in the mixed and diverse attack groups by use of attack constraint classification methods, builds invasion recognition particle tree, and detects mixed diverse attack groups in complex network environment according to error estimation. Experimental results show that the algorithm can effectively improve the accuracy of detection in complex network environment. atures;
Research on Security System for Buildings in Smart Community Based on Wireless Sensor Network
Authors: Chen Chang Shun
Published: May 2014

On the construction and transformation of smart community, it is crucial to program the plan for the buildings. Aiming at solving the problem of building security, a solution based on wireless sensor network is proposed: Making CC2530 as the core wireless measureing and controlling unit, the monitoring and security were achieved. With ARM6410 as the main processor to construct converging gateway node, the gathering and transferring of security information were established. Meanwhile, the control center can be connected to the monitoring center, based on which the integrated organization of the smart community could be realized.
Study and Application of Integrated Patient Satisfaction Survey System
Authors: Yang Hui , Hu Lan , Xue Xiang Feng , Chen Yong Ke
Published: May 2014

Based on the analysis of current status for the patient satisfaction survey investigation in China, this paper introduced the structure and functions of an integrated patient satisfaction survey investigation system using kinds of data collecting devices and advanced data analysis technologies. Some suggestions such as optimization procedure and data mining, etc. were raised to better the public administration and the life of common population.
Optimization of Smart Card File System
Authors: Peng Ming Liang , Li Dai Ping
Published: May 2014

Through analysis on the card file system, VFS, NTFS ,etc,by combining present technology advancement and market demands,which builds a new kind of smart card file system framework that makes the file system more faster and stronger .
The Design and Implementation of Database on the Full-Text Retrieval System of Multi Document
Authors: Shi Hui , Cai Jing Jing
Published: May 2014

With the rapid development of information technology and people’s relying on information technology, a growth trend geometry has been showing by all kinds of electronic document format , a full-text retrieval system of multi document we was needed to be designed and implemented in order to retrieve the required information quickly and accurately among those vast amounts of information. During the design and implementation process in the system, it played a crucial role in the link to design and realize the database. The design and implementation of database development process part in the full-text retrieval system of multi document was mainly introduced in this paper.
Research of Multilevel Security Network Based on Mobile IPv6
Authors: Yu Dan , Fang Shi Lin
Published: May 2014

multilevel security technology has broad applications in military and commercial aspects, the key technology in the research of multilevel security network, based on the BLP model of a security enhancement model is presented, and proved its security of the model. Secondly, based on the analysis of RBAC96 model cluster, proposes a licensing scheme of multilevel mobile IPv6 network based on role. Again gives an implementation scheme of multilevel security network in mobileIPv6 network environment. Including the configuration and deployment of mobile IPv6 environment of multilevel security network, and gives the process of multilevel security network. Finally, the simulation results of multilevel security network is given. The results show that, the multilevel security network design to meet the functional requirements of multilevel security network.
Research of Ethernet Ring Protection Technology
Authors: Chen Wei , Yu Qiang , Yu Peng Fei , Ren Jie , Huang Zhi
Published: May 2014

Ethernet ring networks are used widely recently, and the research on the ring protection switching is carried out. Spanning Tree Protocol (STP) was the first technology to control ring networks to avoid the storm. Rapid Spanning Tree Protocol (RSTP) is an upgraded version of STP[1]. RSTP can provide shorter convergence time than STP. Ethernet Automatic Protection switching (EAPS) is designed for a single ring topology [2]. The convergence time of EAPS is below 50ms and EAPS can meet the real-time requirements and high-reliability requirements of network services.G.8032 is a standardized scheme for achieving sub-50ms service protection in ring topologies which is recommended by ITU-T[3]. This paper intelligent Ethernet ring protection technologes about Spanning Tree Protocol, RFC3619 and G.8032 .These technologies appear in different times, and have their advantages and disadvantages. This article outlines these Ethernet ring protection switching technology and explains their basal principles.
The Design of WinCE Driver of WSN Nodes Based on ARM
Authors: Ju Jin Wu
Published: May 2014

Wireless sensor network (WSN) is the network which is composed of a large number of intelligent sensor nodes, it has the ability of self-organizing network routing, therefore, it has been widely used. Building wireless sensor networks is the key to WSN nodes. This paper introduces the basic structure of wireless sensor network node based on ARM, and it delivers a detailed analysis on the operating features and the CC2480 hardware interface of the ZigBee processor, what’s more, it specifically talks about the implementation of the Wince driver of WSN nodes.
Design of Personnel Position System of Mine Based on ZigBee Technology
Authors: Miao Lei Gang , Zhang Kui , Ni Rong
Published: May 2014

China’s present communication systems in coal mine can not effectively transfer information. Hence, rescue efforts are hard to be carried out in case of coal mine accident. To deal with this problem, a method of mine wireless communication system with low-power dissipation based on Zigbee wireless technology is presented. The paper at first introduces the characteristics and structure of ZigBee protocol, then introduced wireless communication networking mode of ZigBee device in coal mine underground, and gave principle of personnel position of coal mine underground and its realizing process.
Research of Security Model and Cloud Computing Strategy
Authors: Ma Ying Rui
Published: May 2014

Cloud computing is a fast-developing Internet computing paradigm. It includes large numbers of IT resources, forms a large virtual resources pool, and offers the remote Internet users on-demand IT services. The easy, cheap and elastic resources in cloud are pulling increasing attentions of the enterprises and users. It is becoming the attention of the academia, industrial sectors and governments. However, the security problem is confining its popularization and development.
A Comprehensive Security Strategy Applying to the Total Life Cycle of Cloud Computing Data Center
Authors: Dong Zhao Yang , Zhang Lin
Published: May 2014

Aiming at the security issues of cloud computing data center, the systematic security construction architecture of cloud computing data center is proposed. By surrounding the key aspects of security construction, such as infrastructure security, virtual security, cloud authentication and authorization, data isolation and protection, cloud platform and cloud service security, security operation maintenance, cloud computing platform migration, and disaster recovery backup, the security architecture constructs a multi-level, multi-angle tridimensional defense system in depth. It ensures the life cycle security for resource services of the cloud computing data center. Many key problems are further discussed in detail, such as the problem of data storage security, security domain isolation, cloud computing platform tenants accessing, and terminal accessing. This paper provides reference for the security construction of cloud computing data center, and gives guide to the implementation of the relevant security measures.
An Improved Construction for Yielding Nonbinary LDPC Codes
Authors: Zhang Li Sheng , Huang Zhi Peng , Zeng Fan Xin
Published: May 2014

In this paper, we investigate construction methods for producing nonbinary LDPC codes, and a family of nonbinary LDPC codes over is presented and its properties are derived. Compared to the second method presented by Ref. [5], simulation results show that the proposed LDPC codes perform well over the AWGN channel under belief propagation decoding algorithm and have an almost same BER curve as the ones in Ref. [5]. However, the resultant construction method is simpler than the latter’s.