bluuebunny/crossref_metadata_2025 huggingface dataset:
The Research and Design of Trusted Cloud Computing Platform Based on Group Theory
Authors: Yang Ying , Shao Xue Hang
Published: September 2013

The cloud computing can greatly reduce the cost of computing, but is unable to ensure either the integrality or the confidentiality of data and calculation. Therefore, this paper considers of the safety of cloud computing, combining the thought of abstract algebra group theory in modern algebra, puts forward TCCPoGT (trusted cloud computing platform based on group theory) that designs in many different respects,such as general structure, public key cryptosystems and node management,etc. The analysis results show that the platform TCCPoGT can insure service security.
SR-Tree: An Index Structure of Sensor Management System for Spatial Approximate Query
Authors: Tong Xing , Liu Yang , Shi Zhao , Zeng Peng , Yu Hai Bin
Published: September 2013

Sensor management plays an important role in the field of Internet of Things. Therefore, the requests of spatial approximate query increase dramatically. Indexing is no doubt a feasible way for efficient spatial approximate search. However, there is a lack of an effective index structure for spatial approximate query. In this paper, we propose a new type of index structure called SR-tree for providing more intelligent retrieval, which is based on R-tree and inverted table. Our index can support for spatial approximate search and work freely either in memory or external memory. The experimental results show that the structure proposed can provide high scalability and fast response time.
Study on Mechanical Properties of Cu-Bi Bearing Materials
Authors: Yin Yan Guo , Li Yun Yun , Zhang Guo Tao , Yin Li Guang , Jiao Xiang Nan
Published: September 2013

Cu-matrix bearing materials were prepared by powder metallurgy method and their mechanical properties were studied in present work. The continuity of copper alloy matrix was destroyed with the increase of Bi element. Because Bi is brittle phase and distributed in the copper alloy matrix grain boundaries as thin ribbon network. The hardness, crushing strength and impact toughness of copper-bearing materials were reduced with increase of the content of Bi. The mainly of Copper-bearing materials containing bismuth fracture are brittle intergranular fracture. When the Bi content is over 4wt%, the Bi has a relatively full distribution in the rich Bi phase of copper alloy matrix grain boundary like a chip mesh belt. As the further increase of Bi, the reduced trends of the mechanical properties of Cu-matrix bearing materials containing bismuth are slow down. because the role of fragmented Copper alloy matrix will not significantly increase with further increase of Bi.
Online Examination System for Microsoft Office Software Operations
Authors: Li Lin Lin , Sun Liang Xu
Published: September 2013

online examination is an effective solution to the level evaluation problem for computer basic operations. This paper proposed an online examination system for computer basic operations, especially, Microsoft Office software operations. The system mainly achieved functions including making exams intelligently, collecting and marking documents submitted automatically in the exam by the database, socket, ado and VBA program methods. This system supported some kinds of Microsoft Office software including Word, Excel, PowerPoint and Access. The actual running result showed the system could help teachers to improve work efficiency and students to improve software operations by the way of online actual operation in computers. The system has been running in the USTL university computer lab center for some times which has already proved that it was very valid to solve level evaluation problem for Microsoft Office software operations.
On Applications of Cell Phone Two-Dimensional Code in China
Authors: Chen Meng Di , Liu Lu Ling , Huang Bin
Published: September 2013

Cell phone two-dimensional code is the product of the combination of the two-dimensional code technology and mobile terminal cell phone, applied to give full play to the superiority of the two-dimensional code recognition technology with the convenience of mobile cell phone use. With the upgrading of Chinese communication network, the popularity of smart cell phones as well as the change of people's lives concept in recent years, the range of applications of the two-dimensional code has been increasingly wider. The paper makes analyses on the classification application of the two-dimensional code in China and at the same time explores a number of constraints existing in its development cause in China, and then it puts forward development strategies of the cell phone two-dimensional code applications in Chinese market and provides a reference to its popularity and application.* Mengdi Chen is the first author; Luling Liu is the correspondence author; Bin Huang is the instructor.
The Design and Implementation of Cloud Service Based Customized Mobile Device Application System
Authors: Zhu Tong , Gao Zhuo
Published: September 2013

In this paper, we propose a system plan for cloud service based local mobile device application customization. The mobile device acquires tailored function configuration from the cloud service and generates the plan for the application with a local configuration interpreting engine. The system enables local applications of mobile devices to be adaptive to the variation of requirements.
Performance of Precipitates in the Stress Aging Treatment of 7075 Al Alloy
Authors: Guo Wei , Yang Meng , Li Hui , Zhang Jing Wu
Published: September 2013

The effect of elastic stress on the precipitation process of 7075 Al alloy aged at 438 K for 1 hour has been investigated in this paper. The mechanical properties have been measured by hardness testing and scanning electron microscopy (SEM) and the microstructures have been characterized by optical microscopy (OM), together with transmission electron microscopy (TEM). Results indicate that the microhardness can reach 180 HV after a 25 MPa elastic tensile stress aging treatment, much higher than the stress-free ones'. The fracture is more brittle and the formation of the precipitates is promoted in the case of the stress-aged specimen. Our study provides a new process to bring down the energy consumption.
Keyword Aggregate Query Based on Query Template
Authors: Zhu Bin , Yuan Fang , Wang Yu
Published: September 2013

For keywords query, we propose a keyword aggregate query method based on query template. During the keywords processing, symbol table is used to locate the position of the keywords in the database to get a series of query items. In the query template generating stage, we design a heuristic query template generation algorithm. We use the improved scoring rules to rate the query templates, and select the optimal query template. The experimental results have shown that the aggregate query method is effective.
A Middleware for Metadata Management Oriented Distributed Data Sharing
Authors: An Jiu Fang , Lu Fa Ming , Duan Hua , Zeng Qing Tian
Published: September 2013

Metadata based data sharing technology has been applied in many fields. The traditional metadata based data sharing technology rarely shares data according to users personalized demand. Meanwhile the portability and security of data sharing hasnt been considered very well. To address these problems, we propose a new metadata based middleware for distributed data sharing in this paper. Compared to some existed data-sharing middleware, the middleware presented in this paper has advantages in portability, personalization and security.
Light Illumination Information Extraction Method of High Dynamic Range Image
Authors: Leng Xue , Yang Jin Hua
Published: September 2013

In this Paper we Investigated Access Technology of the Light Illumination Information in Real Scene. by Analyzing the Conventional Method, we Proposed a Method to Access Light Illumination Information of High Dynamic Range Image. in the Method, the Image Information Obtained by Camera was Converted to the Panoramic Image by Using Image Mosaic Technology and then Converted to the High Dynamic Range Image by the Software HDR.
A Research of the Vertical Differentiation of Digital Content Products Basing on Numerical Simulation Analysis
Authors: Zhang Zhen Bo , Hu Ling Yi , Wang Bin
Published: September 2013

This paper mainly analyze the motivation of enterprises to provide differentiation products, and market result, relevant social welfare effect in digital content products market. First, combing the specific characteristics of digital content products, this paper has developed the Vertical Differentiation Model of Digital Content Products". And then makes an numerical simulation of this model. We get two primary conclusion:(1)Under the assumption of economic man, digital content market will form vertical differentiation of product quality at last, namely products of different classes will coexist and every enterprise will have relevant stable competitive strategy.(2) The digital content market has a trend that enterprises with high quality products will get higher profit. There are three points of new ideas. (1) introducing specific characteristics of digital content product to the model. (2) loosening previous assumption of rational customer. (3)Introducing non-quality characteristic to the question of quality-choosing.
The Infrared Spectrum Analysis and Antioxidation of Glycosaminoglycan from Patinopecten yessoensis Waste
Authors: Cui Qing Man , Li Guang Jing , Zhao Yang , Yuan Chun Ying
Published: September 2013

Purification and antioxidation of glycosaminoglycan from Patinopecten yessoensis waste were studied. The results showed that the glycosaminoglycan contained characteristic functional groups like-OH(3424cm-1), -COO-(1653cm-1) and-NH(1567cm-1), -SO2(1414 cm-1), C-O-C(sugar ring,1044cm-1),, and it had good ability of scavenging DPPH free radicals and reducibility as well as metal chelating.
The Application of Network Anomaly Mining Technology in Campus Network Information Security
Authors: Bin Wang , Zhao Zhi Chao , Jiang Yong Cheng
Published: September 2013

Web Service architecture gradually matures in the related applications of campus network, but campus network anomaly mining technology still needs further development in its confidentiality, integrity, and non-repudiation problems. In SOA, campus network anomaly mining technology still needs to strengthen safety and reliability. Based on suffix tree technology, this paper proposed the application of campus network information security technology based on network anomaly mining technology, analyzed the campus network security features in detail, and designed an anomaly mining algorithm on suffix tree campus network security. Computer simulation results show that the proposed method can rapidly mine the abnormalities of the network and ensure the security of campus network.
CO2 Laser Treatment for the Second-Degree Scald of Mouse Skin
Authors: Wang Yun Xia , W Shu Lian , Xu Xiao Hui , Chen Hai Yu , Li Hui
Published: September 2013

Nowadays CO2 laser has been regarded as the effective treatment methods of different kinds of cosmetology and dermatologic surgery. The second-degree scald is of frequent occurrence in people, but many methods on treat the second-degree scald are not good enough. Therefore, the process of second degree scald skin irradiated by the CO2 laser was monitored in the study. The second-degree scald of mice models were divided into two groups in order to contrastively observe the effect of CO2 laser on treating scald. Skin detector associating with the histopathologic examination were used to observe the changes of skin texture and pathologic morphology structure. Meanwhile the healing time was recorded about the two groups. The texture of skin surface irradiated CO2 laser was more glossy and distinct after healing, and the healing time was much faster as well. It was good agreement between skin detector images and histopathological architecture. The result suggests the CO2 laser can significantly cure the the second-degree scald.
A Visual Computing Method for Coal Mine Roadway Deformation
Authors: Li Zhan Li , Wu Jin Hao
Published: September 2013

In order to make more precise monitoring and automation of roadway, the paper presents a method based on computer vision. The first step is to get the edge information of marked points though image preprocessing, then calculate the planar coordinates of marked points and decode. The next is to set up the camera model to solve all the initial parameter and distortion coefficient of camera and initial marked points. Finally, the bundle-adjustment can refine all the camera parameter and the three-dimensional of marked points. Experience shows the method can achieve accurate three-dimensional information and make efficient adjustment about roadway deformation.
Design of Library Temperature and Humidity Control System
Authors: Gao Qing Min , Gao Lei
Published: September 2013

This is a design based on the library temperature and humidity automatic measurement system and control system. Using modern information gathering techniques, computer data processing and control technology, through the choice of hardware devices and designing of software programs, it is feasible to achieve automatic detection of the library temperature and humidity parameters and control of air conditioning equipment. Demonstrated by engineering examples, the system structure is clear, stable and reliable. It has significantly improved the quality of preservation of books in the library, therefore, has a wide prospect in the field of library temperature and humidity control.
Development of the Online Automatic Measuring System for Total Sugar Content in Chlortetracycline Fermenter
Authors: Liu Han , Chen Xiang Guang , Wu Lei , Li Zhi Min , Yang Qiang
Published: September 2013

To realize online automatic measuring of total sugar content in chlortetracycline fermenter, we developed an online automatic measuring system based on MSP430 microcomputer. We designed the automatic sampling, filtering and washing of fermented liquid by controlling the I/O of MSP430 and the relay. The data of total sugar content was sampled and processed by MSP430. The data of total sugar content can display clearly and easily on host computer with the RS232 serial port connection between MSP430 and host computer. The software of this system was programed with C language based on IAR for MSP430 environment. The experiment results show that the online automatic measuring system of total sugar content in chlortetracycline fermenter can be met the demand of practical application.
Research on Software Testability Requirement Analysis Method
Authors: Wang Yi Chen , Xie Feng
Published: September 2013

Software testability parameter system was constructed by parameters that extracted from software testability influence factors. It established relationships between these parameters and software testability through a target layer which may reflect software inner attributes. In order to carry out the design of software testability in engineering ways, principles of software testability requirements and software testability requirement factor were presented in this article, as well as analysis method for software testability requirement. This method considered software characteristics and software test types as selection criteria to specify the target layer, and then tried to acquire software testability requirement factors with the help of software testability parameter architecture built before. Next, software testability requirement could be obtained by following the steps of software requirement engineering.
Trusted Class Measurement Module - A Novel Fine-Grained Integrity Measurement Method for Java Application
Authors: Ba Hai He , Mei Song Zhu , Ren Jiang Chun , Wang Zhi Ying , Cheng Yong , Zhou Huai Zhe
Published: September 2013

typically, integrity measurement technology for Java application is based on the whole file, which is too coarse to meet different requirements. In this paper, we propose a novel fine-grained integrity measurement method for Java application: trusted class measurement module (TCMM), which is a class integrity measurement method according to organization structure of Java application file. It not only satisfies necessary trust but also has less impact on system performance.
Discussion and Analysis of Digital Citys Management in Anhui
Authors: Sheng Bao Zhu
Published: September 2013

As one of the developing provinces of China, Anhui Provinces Urban management is always accomplished by the government which is thought in the very traditional way by now. With the higher level of the urbanization and the constant expansion of the city, the soaring problems in urban management are series of tasks that are especially difficult to conquer, so the traditional urban management pattern can no longer exist in the Information Century.
Design of Automatic Control System for Casting Equipment Based on PLC
Authors: Tao Sui , Sun Fan Chao , Kong Zhen , Lu Wu
Published: September 2013

In order to improve the level of automation of small and medium-sized casting enterprise, the automatic control system for casting equipment based on PLC is designed. It uses SIEMENS PLC226 as the core control unit to complete the following processes [: 1).Automatically goes fetching molten iron from induction melting furnace. 2).Automatically positioning casting holes and casting molten iron of setting weight into them. The system uses the laser ranging sensor to position casting holes according to the distance between casting position and the ground, and the weight of molten iron is measured by the weighing sensor. The system uses SIEMENS-TP170B touch screen as upper computer to set and display relevant parameters. After repeated experiments, the design has met the requirements: precise positioning, reliable weighing and automatic casting.
Robust H∞ Control for a Class of Nonlinear Uncertain Singular Systems with Time Delays both in State and Output
Authors: Hao Jun Kang , Li Guo Gang , Su Lian Qing
Published: September 2013

This paper discusses the problem of robust control for a class of nonlinear uncertain singular systems with time delays. Considering the nonlinear disturbance link to uncertain singular systems with time delays effects, the design idea of robust controller is presented. Using Lyapunov stability theory and linear matrix inequality (LMI) method, a robust controller design example of such nonlinear uncertain singular systems with time delays both in state and output is given. Under nonlinear uncertain functions satisfying Lipschitz condition, a sufficient condition of such nonlinear uncertain singular systems which are asymptotically stable and satisfy the robust performance is obtained. Finally, a numerical example is given to show the applicability of the proposed method.
A Search and Rescue Training Simulator for the China Coast Guard Vessels
Authors: Feng Meng Kui , Li Wei Min , Li Yong Jin
Published: September 2013

The China Coast Guard vessels assume the search and rescue mission in Chinas coastal waters. Simulator training is an effective means to improve search and rescue efficiency. Through the analysis of the actual search and rescue process, a search and rescue training simulator is designed for the China Coast Guard vessels. The system structure, the search model, and the SART hardware simulation technology are introduced in the paper.
A 10-Gb/s 0.18-μm CMOS Optical Receiver Front-End Amplifier
Authors: Li Wen Yuan , Guo Rui
Published: September 2013

A fully integrated 10-Gb/s optical receiver analog front-end (AFE) design that includes a transimpedance amplifier (TIA) and a limiting amplifier (LA) is demonstrated to require less chip area and is suitable for both low-cost and low-voltage applications. The AFE is stimulation using a 0.18μm CMOS process. In order to avoid off-chip noise interference, the TIA and LA are dc-coupled on the chip instead of ac-coupled though a large external capacitor. The tiny photo current received by the receiver AFE is amplified to voltage swing of 400. The results indicate that, with a photodiode parasitic capacitance of 500fF and the bonding pad parasitic capacitance of 200fF between which a 2-mm bond wire is inserted at the input node, the AFE provides a conversion gain of up to 89.21 dB and 3 dB bandwidth of 9.78 GHz. Operating under a 1.8V supply, circuit power dissipation is 95 mW and its sensitivity is 18.5μA for BER of 10-12
Design and Implementation of Remote Control Software for Nuclear Inspecting Devices
Authors: Liu Cheng Ze , Zhang Yi , Cheng Bao Liang , Zhao Xiao Min , Duan Ran
Published: September 2013

Remote control systems are usually adopted in nuclear facilities inspecting activities due to radioactive environments. Analysis on requirements and structural design are made, and functional modules are described in detail. Remote control software for nuclear equipment inspection is developed with combination of OpenGL 3-dimensional graphics and virtual reality technologies. Operators may try offline simulation before sending commands to control hardware, which improves accuracy and reliability of remote control system.
Modeling and Attitude Control of a Spinning Spacecraft with Internal Moving Mass
Authors: Guo Peng Fei , Zhao Liang Yu
Published: September 2013

An attitude control system of a spinning spacecraft with internal moving mass is presented in this paper. This system consists of a rigid body and two internal radial moving masses. The mathematical model, including attitude kinematics and nonlinear dynamics equations, is established based on Newtonian mechanics. The control law is designed based on the linear-quadratic-regulator (LQR) theory. The performance of the controller is demonstrated in numerical simulation, and the response shows that the attitude control system is stable and effective.
A FPGA-Based Digital-Mirror Driving Control System for Compressive Imaging
Authors: Li Shi Bo , He Jun Hua , Lv Pei
Published: September 2013

With FPGA as the host controller, a set of hardware system based on digital micro-mirror device (DMD) for compressive imaging (CI) was developed. This paper studies the principle and characteristic of DMD control. First, the data of PC Screen image is transferred to DMD driver by software using binary pulse width modulation (BPWM) technology. The data is then rewritten into a control single which finally directs the DMD. The test results proved that the digital image received can be loaded onto the micro-mirrors excellently and with optics module installed, the system could successfully implement the CS measurement patterns which satisfy CI system.
Research on Control Method of Complex Time-Varying System
Authors: Tian Hong Bin
Published: September 2013

Because the charged objects have the factors of complexity, interference uncertainty and nonlinear, the time-varying system control method gains increasingly attentions. First, this paper carries the researches on the time-varying system classification and builds the control model of the time-varying system. Then the paper discusses the common time varying system control method and analyzes the state-of-art and performance of the control algorithms. Finally, it investigates the development tendency of the complex time-varying system control methods.
The Detection System of Watercrafts Traffic Volume Based on Laser Sensation
Authors: Duan Xiao Hui , Song Ru Guang
Published: September 2013

This electronic document Elaborated on the work principle of the detection system of watercrafts traffic volume based on laser sensation, and introduced the key technologies and concrete realization in the application of fairway intelligent management.
Cloud Computing Environment Based on Web Log Mining Algorithm Implementation of Test
Authors: Wang Bin , Jiang Yong Cheng , Li Jing
Published: September 2013

Software test is the important means that guarantee software quality and reliability, and in this respect,it plays the role that other method cannot replace. However software test is a complex process , it needs to consume huge manpower,material resources and time,which takes the 40%~50% of entire software development cost approximately . Paper presents the inherent in software test case designing based on genetic algorithm is using genetic algorithm to solve a set of optimization test cases, and the framework includes three parts which are test environment construction, genetic algorithm and the environment for test .
Reliability Research of Fiber-Access Devices Monitoring System on Fault Tree
Authors: Yao Qi Gui , Yu Hai , Yu Yue , Wang Wei
Published: September 2013

The method of fault tree analysis is an important method for complex system reliability analysis of large scale. Fiber-access devices monitoring system is an important system of electric power communication transmission. Firstly it introduces the method of fault tree analysis, and then use the fault tree modeling technique for the fault tree to model refers to the fault of optical access equipment monitoring system, and carries on the qualitative analysis and quantitative analysis. It provides theoretical basis for system improvement and maintenancs.
Design and Implementation of New Multi-Functional Intelligent Single Phase Meters
Authors: Zhang Bu Xing , Qiu Ye Lin , Lu Jin
Published: September 2013

Because the reasons of only reached part intelligent of existing energy meter and the difficulty of hardware upgrades, we propose a new design that is a modular single-phase multi-rate smart electronic meter based on MSP430 low-power single-chip. We used AD7755 as a dedicated power measurement chip to ensure the accuracy of the measuring pulse. In order to improve the reliability and usefulness of the electric meter, we have used the clock circuit, data storage circuit, display drive circuit, three kinds of communication circuits, and anti-tamper technology. Through making use of it, The multifunction smart meter is proved that it has a character of stable performance, accurate measurement. It is full compliance with national design specifications of IEC62053-22 and the active energy error met the accuracy requirements of class 0.5S.
Hardware Design of Microgrid Experimental System Based on Inverter-Interfaced Micro Sources
Authors: Liu Dong , Yang Qing Xin , Xiao Zhao Xia
Published: September 2013

This paper designed an experimental system of microgrid which is composed of inverter-interfaced micro sources using droop control. DC power and IPM module were used to simulate the inverter-interfaced micro source, DSP2812 was employed to control the IPM. Load power sharing among different micro sources was achieved without communication. The experimental results have shown the correctness and validity of the designed scheme.
Design of PowerPC-Based Radar Universal Signal Processing Unit
Authors: He Ji Yong , Chen Xiang Guang
Published: September 2013

With the rapid development of radar system, it has put forward higher requirements in the ability of real-time signal processing, the capability of data processing and the versatility of signal processing platforms. The signal processing unit based on PowerPC processor MPC8640D can complete the calculation of complex data using the superior performance of the processor. The combination of embedded operating system VxWorks can meet the real-time requirement of the radar signal processing perfectly. Universal IO interface definition of PowerPC processors make the designed signal processing unit own excellent versatility. The use of muti-beam digital synthesis technique and the vector library in software development improves the signal processing further more.
Series-Parallel Combined Constant Pressure Water Supply Pipeline Design of High-Rise Building
Authors: Li Shi Lei , Chen Hui , Wang Qiang
Published: September 2013

The existing parallel type pressurized water supply pipeline of high-rise buildings has been improved to build energy-saving high-rise building water supply systems. Series-parallel combined constant pressure water supply pipeline is designed. Antipollution high water tank is reasonably installed above the middle area of the building to supply water for the middle area high water tank and supply pressurized water by water pumps for high-rise district. And PLC control system is designed to control the work efficiency of the water pumps according to the sensor feedback information. Verified by calculation and simulation, series-parallel combined constant pressure water supply pipeline is better than parallel water supply pipes in saving the energy which is about the middle-Hybrid phase consumption of the latter. PLC control is simulated and the results show that PLC can effectively control the water supply system to ensure stable water pressure so as to save energy.
ANN-Based Modeling for Load and Main Steam Pressure Characteristics of a 600MW Supercritical Power Generating Unit
Authors: Ma Liang Yu , Gao Zhi Yuan
Published: September 2013

A supercritical coal-fired power generating unit is a typical multivariable system with large inertia and non-linear, slow time-variant, time-delay characteristics, which often makes the coordinated control quality deteriorate under wide-range load-changing conditions, and can't well satisfy the unit load and main steam pressure control requirements. Thus, it is of vital significance to study the supercritical boiler units operation characteristic by means of modeling method, and to improve the control quality with model-based advanced control strategies. In this paper, artificial neural network (ANN) method was used to build a nonlinear mathematical model of the load and main steam pressure characteristics for a 600MW supercritical boiler unit. Operation data over wide-range load-changing conditions were used for model training. Simulation tests showed that the model can fit the complex non-linear, dynamic characteristics between the units load, main steam pressure and fuel, feedwater flow and turbine governing valve opening with high precision and strong generalization ability. The model can be used as a prediction model to construct an intelligent controller for supercritical boiler unit coordinated control to meet the engineering application demand.
Images Rapid Recognition of Potatoes under Soil Background
Authors: Zhang Teng Teng , Zhang Jun , Sun Teng Fei
Published: September 2013

A new method for quick identification of images of mature potatoes under the soil background is reported in this thesis. Firstly, the segmentation problem in multidimensional space is transformed into one dimensional space by transforming the color image to gray image. Then, the optimum threshold is obtained on the base of the Otsu threshold segmental method. Lastly, the image is identified by the improved algorithm, which is based on the ABS algorithm. The merits of this algorithm are that it is simple with highly efficient identification. Experimental results show that the method can avoid interference of clods completely and identify potatoes from the soil background effectively.
A Real-Time Method for License Plate Location
Authors: Zhang Luo Zheng , Yang Xing
Published: September 2013

License plate location is the first and crucial stage in license plate recognition. Although many license plate location methods achieve higher success rate, they are always time-consuming. However, robust real-time characteristic is important to application of license plate recognition. In this paper, a texture-based method of license plate location is proposed to enhance real-time characteristic while keeping higher success rate. It consists of three parts: preprocessing, region of interested (ROI) location and ROI filtration. Experimental has demonstrated that the proposed method achieve average execution time of 49ms and success rate of 96.3% simultaneously.
Recognition and Matching of ROI Region Finger-Vein Based on NMI Feature
Authors: Yu Xiong , Wang Hong
Published: September 2013

Finger-vein recognition technology is a new contactless biometric identification technology, which has a good prospect for development. This paper presents an algorithm of recognition and matching of ROI region of finger-vein based on NMI feature. The algorithm references ROI conception in the image preprocessing, and uses NMI feature as the image feature value in the feature recognition. The paper sets up five experiments to study and analyze the performance of the algorithm, the results has showed that this algorithm assumes high efficiency, good stability and reliability with simple implementation procedure.
A Feature Extracting Method for Chinese Character Recognition of License Plate Based on Elastic Mesh and Wavelet Transform
Authors: Zheng Chao , Yang Hua , Yang Xing , Huang Chao Chao , Wu Xiao Di
Published: September 2013

Low-resolution Chinese character recognition of license plate is always a difficult problem. For solving it, we must think about the distinctiveness of character feature and the counting speed of method simultaneously. In this paper, we proposed a simple and effective feature extraction algorithm. First, extract the statistical feature of Chinese character based on decomposing stroke with wavelet transform. Second, apply Elastic Mesh Algorithm into extracting wavelet coefficient of decomposing stroke to get the structure information of Chinese character. The experimental results show the method is robust against low quality Chinese characters, such as skew, fuzzy, glue, distorted character, and easy to be used in actual projects with simple advantage.
Image Denoising Algorithm via Spatially Adaptive Bilateral Filtering
Authors: Qi Min , Zhou Zuo Feng , Liu Jing , Cao Jian Zhong , Wang Hao , Yan A Qi , Wu Deng Shan , Zhang Hui , Tang Li Nao
Published: September 2013

The classical bilateral filtering algorithm is a non-linear and non-iterative image denoising method in spatial domain which utilizes the spatial information and the intensity information between a point and its neighbors to smooth the noisy images while preserving edges well. To further improve the image denoising performance, a spatially adaptive bilateral filtering image deonoising algorithm with low computational complexity is proposed. The proposed algorithm takes advantage of the local statistics characteristic of the image signal to better preserve the edges or textures while suppressing the noise. Experiment results show that the proposed image denoising algorithm achieves better performance than the classical bilateral filtering image denoising method.
A Jointed Image Fusion Algorithm of Two-Dimensional PCA and Curvelet Transform
Authors: Zhang Ya Feng , Wen Jian Guo , Zhu Jun Ling , Yu Jian Lin
Published: September 2013

Data fusion technique can produce fused images with high spatial resolution and abundant spectral information. A new image fusion algorithm based on two-dimension PCA and Curvelet transform will be proposed according to image process models specialities in this paper. First of all, we performed 2DPCA on the MS image to get the 1st principle component (PC1); then we applied Curvelet transform in Pan Image and PC1; lastly decomposition coefficients obtained was processed according to certain rules to get fused coefficients, and afterwards, we performed inverse Curvelet transform on them to acquire fused sub-images. Then we performed inverse 2DPCA transform on the other components and the fused sub-images to get fused images. Experiments will be carried out via application of multispectral and panchromatic images, and it turns out that this new algorithm can improve spatial resolution greatly while maintaining spectral information.
Data Hiding in Digital Image Based on Color Difference
Authors: Dai Guo Yong , Chen Lu Yi
Published: September 2013

Data hiding is one of the most important ways to achieve secure data transfer. Most spatial data hiding methods will make the host image distortion and the embedded data can be detected by stenography analysis. A novel data hiding method is proposed in this paper. This method first disturbs the raw critical data, and then embedded them only into areas of color changes much in the host image. Experiments show that this method can reduce the distortion of the host image and decrease the appreciability of the embedded data.
Medical Image Segmentation
Authors: He Bing Song , Zhu Feng , Shi Yong Gang
Published: September 2013

Medical image plays an important role in the assist doctors in the diagnosis and treatment of diseases. For the medical image, the further analysis and diagnosis of the target area is based on image segmentation. There are many different kinds of image segmentation algorithms. In this paper, image segmentation algorithms are divided into classical image segmentation algorithms and segmentation methods combined with certain mathematical tools, including threshold segmentation methods, image segmentation algorithms based on the edge, image segmentation algorithms based on the region, image segmentation algorithms based on artificial neural network technology, image segmentation algorithms based on contour model and image segmentation algorithm based on statistical major segmentation algorithm and so on. Finally, the development trend of medical image segmentation algorithms is discussed.
Research on Image Feature Extraction Method Based on Orthogonal Projection Transformation of Multi-Task Learning Technology
Authors: Jing Xiao Yuan , Li Li , Wang Cai Ling , Yao Yong Fang , Yu Feng Nan
Published: September 2013

When the number of labeled training samples is very small, the sample information we can use would be very little. Because of this, the recognition rates of some traditional image recognition methods are not satisfactory. In order to use some related information that always exist in other databases, which is helpful to feature extraction and can improve the recognition rates, we apply multi-task learning to feature extraction of images. Our researches are based on transferring the projection transformation. Our experiments results on the public AR, FERET and CAS-PEAL databases demonstrate that the proposed approaches are more effective than the general related feature extraction methods in classification performance.
A Fast BPNN Based Image Deblurring Method
Authors: Ren Xiao Zhi , Bin Bin Chao
Published: September 2013

This paper proposes a fast deblurring method based on back propagation neural networks (BPNN), in which the symmetry of blur function is utilized to reduce the size of network. In the image block used to be training vector, the pixels that have the same distance with centrral pixel are set the same weight in BPNN. This set of weight is realized by adding all the pxiels that have the same distance to be one input data of BPNN. Comparing with the classic BPNN based deblurring method in which the symmetry of blur function is not considered, the proposed method decreased the computation consumption largely. At the same time, the performance of proposed method is improved. Several experiments results testify the superiority of proposed deblurring method.
Application of the Sub-Ode Method for the Broer-Kaup Equation
Authors: Zeng Qing Wu , Li Yin
Published: September 2013

Based upon a generally sub-ode method, which is a direct and unified algebraic method for constructing more general form travelling wave solutions of nonlinear partial differential equations (PDEs) and implemented in a computer algebraic system, we consider the shallow long wave approximate equations (BK).New and more general form solutions are obtained, including kink-shaped solitons, bell-shaped solitons, singular solitons and periodic solutions. The properties of the new formal solitary wave solutions are shown by some figures.
Design of Process Management for Multi-Process Micro-Kernel Embedded OS on ARM
Authors: Qu Bo
Published: September 2013

This paper describes the design and implementation of process management for ARM based multi-process micro-kernel embedded operating system in technical details, including allocation of process memory space with MMU, creation of system level tasks, generation of the init process, the process management task, switching of the tasks and processes, and multi-level priority-queue schedule. The paper finally gives a demo example to show the performance of the process management. The entire operating system is implemented on Linux with GNU tool chain by the author of this paper, which is programmed simple and compact therefore suitable for both embedded system development and embedded related curriculum teaching in colleges and universities.
The Study of the PCI Bus Expansion Based on PCI Bridge Chip
Authors: Xu Jin , Guo Jing , Mei Zheng Mao
Published: September 2013

PCI (Peripheral Component Interconnect) bus is a high-performance local bus, is put forward to meet the high-speed data transmission between peripherals and host. The CPCI technology is adapted from PCI-based, it conforms to the PCI bus standard and mature European card mechanical standards , supports hot-swap capability, has advantage of the more stronger, more reliable, use and maintenance simply. Can break through the limitations of the PCI card via the PCI bridge technology to achieve PCI to CPCI conversion, the paper introduces the principle of the PCI-PCI bridge technology and in-depth analysis of a typical bridge chip PCI2050, based on a PCI card circuit design example, and provide a reference for the type of system design and verification.
A Comparative Study of a Ka-Band High Harmonic Peniotron
Authors: Hu Biao , Li Jia Yin , Li Tian Ming , Wu Xin Hui
Published: September 2013

This paper demonstrates the operating characteristics of a ka-band magnetron-type slotted peniotron. The third-harmonic four-vane peniotron operates in a circularly polarized 2π mode. We have compared the results between theoretical analysis and PIC simulation of the peniotron. The results show that, with proper acceleration voltage and beam current, the peniotron is predicted to generate a pure 2π mode electromagnetic wave, and the theoretical analysis predicted and PIC simulation demonstrated output power are as high as 52 kW and 45 kW at 29.7 GHz, respectively.
Semantic Annotation of CAD Model Based on Ontology
Authors: Ma Qin Yi , Zhou Mao Jun , Wang Ming Wei , Wang Hui Hui
Published: September 2013

This paper proposes an approach to annotate the CAD models based on ontology with the aim of making the design intent understood by computer and applied in follow product development process, such as FEA. Semantic markup can embed the engineering semantic information such as product function, and design principle into the CAD geometry data through annotating, it makes the analyzers reuse design ideas quickly and conveniently to increase efficiency. The paper presents the design domain ontology and FEA domain ontology, and applies feature technologies and the semantic Web to complete annotation. Finally, a case study is carried out.
The Architecture of Digital Library Platform Based on Cloud Computing
Authors: Zhang Qing Song , Wang Xin Yu
Published: September 2013

Cloud computing will bring great change for the function and application service of digital library. In this paper, combined with cloud computing technology, the cloud service platform of digital library is constructed, to give the digital library platform system model based on cloud computing, and then the digital library platform structure of model data layer, control layer and application layer is introduced in detail.
Application of Artificial Fish-Swarm Algorithm in the Optimization for Taxi Dispatching System
Authors: Ma Xian Min , Liu Ni
Published: September 2013

Currently, the taxi empty crossing probability (ECP) is high, while taking a taxi is very difficult for people. This phenomenon is largely caused by the extensive mode of taxi operations. Aiming at this problem, a kind of intelligent optimization method based on the Artificial Fish-swarm Algorithm (AFSA) is proposed for taxi scheduling in this paper. Firstly, the design of this intelligent taxi dispatching system is introduced, and the taxi scheduling method based on grid dispatching algorithm is described simply. Then the method of using the AFSA to optimize the global distribution of empty taxis is mainly introduced. The purpose of this optimization method is to make the distribution of empty taxis consistent to the current distribution of passengers predicted according to the historical scheduling data. Finally, the effectiveness of the AFSA optimization method is verified by the taxis and passengers distribution which is obtained through MATLAB simulation. Moreover, this method has a better global optimizing effect compared with the method of using the Particle Swarm Optimization (PSO) algorithm to optimize the taxis distribution.
Design and Realizing of WEB-Based Notebook
Authors: Wu Da Fei
Published: September 2013

Presently,each kind of network teaching-supporting platform is not very perfect,particularly,the network notebook computer system designed by its exploiter has not been brought to the enough attention,so the computer's function which is developed is unitary, cannot meet learners needs.This thesis analyzes the function which an ideal notebook computer system should have,then designs a new notebook system model,and uses the correlative techniques to realize its function.
A New Algorithm to Reduce PAPR in STBC MIMO-OFDM System
Authors: Wang Ya Jing , Li Ya Zhen , Guan Jing
Published: September 2013

MIMO and OFDM technology is the core technology of 4G network, and have great development prospects. The main drawback of MIMO-OFDM system is the high PAPR. This paper is based on Cross-antenna rotation and inversion and Active Constellation Extension. The paper proposed the joint algorithm to reduce PAPR in STBC MIMO-OFDM system. It makes use of time, space and frequency freedom to improve the PAPR performance. The simulation results show that the joint algorithm can effectively reduce the PAPR value and do not increase the bit error rate in STBC MIMO-OFDM system.
A Hybird Virtual Machine Placement Aglrithm for Virtualized Desktop Infrastructure
Authors: Ge Jun Wei , Zheng Hai Ming , Fang Yi Qiu
Published: September 2013

As we all kown, The virtual machine placement is one kind of bin-packing problem. By optimizing placement of virtual machine. We can improve VM performance, enhance resource utilization, reduce energy comsumption. After analysis the existing virtual machine placement aglrithm. We propose a hybird virtual machine placement aglrithm (HTA) which based on network latency threshold for the requirement of low network latence and low VM migraiton ratio in Virtualized Desktop Infrastructure. It elect qualified node set based on network latency threshold and palce the virtual machines with load-balance policy, taking into account the preformance of the network and vitual machines. According to analysis and comparison. The simulation result show that the algorithm can effectively lessen the network latency and reduce the VM migration ratio.
A General Vertex Partition Refinement Algorithm for Graph Isomorphism
Authors: Hou Ai Min , Hu Chuan Fu , Hao Zhi Feng
Published: September 2013

A general depth-first backtracking algorithm for graph isomorphism with the vertex partition and refinement technique is presented in this paper. The time complexity of this nondeterministic polynomial algorithm is O(nα+3) where nα is the number of backtracking points and (h-1)/2α (h+1)/2 for h=logn in the worst cases. The tests on many types of graphs validated the efficiency of this algorithm for graph isomorphism.