bluuebunny/crossref_metadata_2025 huggingface dataset:
Research and Design for Three-Axis Electromagnetic Leakage Detector
Authors: Qian Jiang Shan , Zhou Zhong Ran , Wang Yu , Shao Tong Guang , Zhang Jin Bo
Published: December 2012

In order to measure the magnetic field around electronic products, household appliances and industrial electrical equipment, this paper puts forward a new method which makes use of electromagnetic coupling design based on three-axis electromagnetic leakage. This method can overcome the disadvantage of traditional single-axis measurement which needs to get the total magnetic field after several times’ measurement. This paper designs three-axis electromagnetic leakage detector for circuit measurement, which is proved to be correct after circuit measurement experiment. It can easily detect 30-2K Hz leakage magnetic field of low frequency generated from electrical appliances products.Introduction.
Research of Monitor System of Electric Vehicle Charging Pile Based on ARM-Linux
Authors: Xu Jiang Chun , Liu Xi , Shi Hui , He Wei Shi
Published: December 2012

Putting forward a kind of parameters monitor management solutions of electric vehicle charging pile based on ARM-Linux embedded software and hardware platform. This system regarded embedded processing chip S3C2440A as the core of data collection, management and control, completed the design of function interface of charging pile, and developed touch interface of charging pile in QT/Embeded environment. The system realized such functions, for instance, charging identification, the account balance recognition, charging qualification discriminant, charging rev. Stop control etc. Experiments show that this scheme can meet the monitoring management system requirements of the electric vehicle charging pile , and has certain practical value
Design of Video Motion Detect System Based on SOPC
Authors: Xu Jiang Chun , Hao Shi Bo , Liu Xi
Published: December 2012

It is very necessary to apply motion detection to video surveillance in order to enhance the performance of system. A new design scheme of video motion detect system based on System On a Programmable Chip is proposed. Two cameras will capture the video data in real-time, and transmitted to DE2_70 development board. After the system which is on a programmable chip based on FPGA processing, the cameras survey whether an illegal personnel is in the range of cameras. The system achieves that two-way video to switch through the switch button. The experimental results show that the SOPC realization of the system design improves the processing speed, and the system also has good flexibility.
Observing Far-Distance Ionosphere Disturbance Effect
Authors: Shi Guo You , Chen Ji Xiang , Yang Jia Xuan
Published: December 2012

Using HF-Doppler detector we have been observed ionosphere disturbance continuously for about 20 years. Firstly, We gave a theoretic explanation to normal frequency-shift records, then using two typical cases we pointed out that in china there exist F2 layer infrasonic disturbance which due to severe weather. Through analyzing their spectrums, we found three remarkable peaks. And comparing with foreign researchers, we indicated that infrasonic disturbances possess local features. Finally, we concluded local features of infrasonic disturbances occurring in our area.
A Novel DSR-Based Protocol for Signal Intensive UAV Network
Authors: Li Juan , Zhang Xiao Lin , Bao Jun Hai , Geng Guo Lei
Published: December 2012

Based on the traditional DSR Protocols have obvious drawbacks such as low packet delivery rate and high routing overhead in the signal intensive UAV network. This paper introduces an improved DSR protocol（Restrict-DSR）. The new DSR protocol can save the space of node routing memory and reduce the routing overhead by limiting the maximum hop count of route request. Simulation results by NS2 show that the RE-DSR has improved the packet delivery ratio and decreased the average of packet end-to-end delay and routing overhead comparing with the conventional DSR Protocols in the signal intensive UAV network.
The Application of Blind Signature Based on RSA Algorithm
Authors: Duo Chun Hong , Yue Yan , Yuan Cheng Peng
Published: December 2012

With the development of electronic commerce, the anonymity of the user on the consumption demand is increasingly outstanding. Electronic cash as a result of this demand arises. In an open network environment, how to protect the integrity, authenticity and integrity of electronic cash transaction has become the focus of current research. This paper mainly discusses electronic cash system based on blind signature. Using RSA blind signature guarantees the system's anonymity. It also analysis the system’s safety, and gives the solution method.
A Metropolis Criterion Based Fuzzy Q-Learning Flow Controller for High-Speed Networks
Authors: Liu Wen Wei , Li Xin , Qin Xiao Ning , Yu Dan
Published: December 2012

For the congestion problems in high-speed networks, a Metropolis criterion based fuzzy Q-learning flow controller is proposed. Because of the uncertainties and highly time-varying, it is not easy to accurately obtain the complete information. In this case, the Q-learning, which is independent of mathematic model, and prior-knowledge, has good performance. The fuzzy inference and Metropolis criterion are introduced in order to facilitate generalization in large state space and balance exploration and exploitation in action selection individually. Simulation results show that the controller can learn to take the best action to regulate source flow with the features of high throughput and low packet loss ratio, and can avoid the occurrence of congestion effectively.
Design of Parallel Operated Counter based on ARM + FPGA
Authors: Yu Ling , Li Ke Jian , Cai Qi Zhong , Zhang Wei
Published: December 2012

Aiming to solve the problems of long execution count and low frequency of counter which has been largely used in various electronic facilities and PLCs, unlike traditional design that utilize embedded microprocessor software for count operation, this paper proposed a parallel operated counter based on ARM+FPGA. The FPGA counter module consists of count controller, SDRAM dynamic parameter and soft contact state register, the count controller carries out counter operation for timing unit every 1ms, then results from count operation would be saved in counter parameter list of a dual port RAM, when controller commands need to be executed via ARM, the counter will be used as a regular memory unit for W/R operation, thus no executing time would be spared basically, which can well meet the system requirements where large number of controllers are needed. Simultaneously, principles of system composition, count operation control and count operation flow are all introduced followed by which a field test is also carried out for testament of the designed counter system.
Application of Modbus Communication Technology in Steam Injection Control System of Thermal Recovery Station
Authors: Zhu Yu Heng , Liu Bao Liang
Published: December 2012

Steam generation and injection in thermal recovery station constitute a very complicated HPHT system, mainly including power supply, water supply and treatment, fuel oil or gas regulation, steam and gas separation, safety and protection etc. To ensure normal operation of the system and realize centralized intelligent management and control, Modbus communication technology is used for configuration and connection of hardware and selection of software. The result shows that sub-systems of steam injection station such as intelligent power supply etc are well integrated.
Karatsuba-ZOT Multiplication Algorithm and its Application in Cryptography
Authors: Jahani Shahram , Samsudin Azman
Published: December 2012

The number theory based cryptography algorithms are the most commonly used public-key cryptosystems. One of the fundamental arithmetic operations for such systems is the large integer multiplication. The efficiency of these cryptosystems is directly related to the efficiency of this large integer multiplication operation. Classical multiplication algorithm and Karatsuba multiplication algorithm, and their hybrid, are among the most popular multiplication algorithms used for this purpose. In this paper, we propose a hybrid of Karatsuba and a classical-based multiplication algorithm, enhanced by a new number representation system. The new number representation, known as "Big-Digits”, is used to carry out the sub-multiplication operation in the new multiplication algorithm. Big-Digits has a compact representation with lower Hamming weight. As the result, the number of sub-multiplication operations for the multiplication algorithm that is based on the Big-Digits representation is significantly reduced. Our results show that the proposed multiplication algorithm is significantly faster than the classical, Karasuba and the hybrid of Karatsuba-Classical multiplication algorithms within the implementation domain of the public-key cryptography.
Designing and Implementation of High Concurrent SSL VPN Server
Authors: Chu Jie
Published: December 2012

This paper focuses on improving concurrent performance of a practical SSL VPN server program. Several common technologies were been used to achieve this, including processing network flow effectively by using readiness notification mechanism, using appropriate data structure to deal with I/O buffers, and implementing timers management module by priority queue. Through combining these technologies properly, the performance of the SSL VPN server program has been improved dramatically.
Computer-Aided Diagnosis for Pneumoconiosis Based on Texture Analysis on Digital Chest Radiographs
Authors: Cai Chun Xiao , Zhu Bi Yun , Chen Hui
Published: December 2012

In this paper, texture analysis was used to discriminate digital chest radiographs of pneumoconiosis patients from normal ones. First, lung fields in each chest radiograph were segmented by using the morphological reconstruction and Otsu-thresholding. Second, several texture features based on the histogram and co-occurrence matrix of grey levels were extracted. Finally, a neural network based classifier was trained with features extracted from 66 chest images to distinguish pneumoconiosis patients from normal cases. Another 29 images were used to assess the diagnosis performance of the classifier, giving an overall accuracy of 79.3%.
Hamming Product Code Based Multiple Bit Error Correction Coding Scheme Using Keyboard Scan Based Decoding for on Chip Interconnects Links
Authors: Maheswari Murali , Seetharaman Gopalakrishnan
Published: December 2012

In this paper, we present multiple bit error correction coding scheme using extended Hamming product code combined with type II HARQ and keyboard scan based error flipping to correct multiple bit errors for on chip interconnect. The keyboard scan based error flipping reduces the hardware complexity of the decoder compared to the existing three stages iterative decoding method for on chip interconnects. The proposed method of decoding achieves 86% of reduction in area and 23% of reduction in decoder delay with only small increase in residual flit error rate compared to the existing three stage iterative decoding scheme for multiple bit error correction. The proposed code also achieves excellent improvement in residual flit error rate and up to 66% of links power consumption compared to the other error control schemes. The low complexity and excellent residual flit error rate make the proposed code suitable for on chip interconnection links.
Formal Verification for SpaceWire Data Flow Control Using Model Checking
Authors: Hua Wei , Li Xiao Juan , Guan Yong , Shi Zhi Ping , Zhang Jie , Dong Ling Ling
Published: December 2012

SpaceWire is a high-speed, full-duplex serial bus standard which is applied in aerospace, so its functions require high accuracy. The traditional methods of verification, such as simulation and test, are not complete. In order to prove the design of the SpaceWire faithfully implemented the SpaceWire protocol’s specification, we presented our experience on the model checking of SpaceWire data flow control using the Cadence SMV tool. It overcomes the incompleteness of traditional verification. And by injecting the errors to ensure the accuracy of the artificial extraction properties and completeness, comparison tests show that the method can effectively ensure the functional coverage, improve reliability of the verification.
Antenna for Wireless Communications on Unmanned Aerial Vehicles
Authors: Guo Xing Long , Ji H. B. , Yin H.H. , Huang J.
Published: December 2012

A compact circularly polarized microstrip patch antenna was designed and fabricated based on the virtual load and limited airframe size of Unmanned Aerial Vehicles (UAV) applications. This antenna is used for ISM frequency band and to enhance the integration of sensors and circuits in UAV communication system. The paper presented the simulation and the measured results. This antenna Experimental results show the 3dB axial ratio bandwidth is 0.6%, the half power beamwidth is ±45º, and the gain is 4.5dBi. The antenna size reduction can be as large as 36%, as compared to that of the conventional CP design.
Research on Carrier Recovery Algorithm for High-Order QAM over Digital Cable TV Monitoring System
Authors: Wang Ling , Wang Qian , Yan Xiao
Published: December 2012

A new structure of carrier recovery loop for high-order QAM is proposed in this paper, and applied in digital cable TV monitoring system. The structure operates in two modes with variable loop bandwidths, has the advantage of increasing convergence speed and minimizing the lock error, meanwhile, optimises the phase detection mode for the weighted DD algorithm to attain the fast recovery. Simulation results show that the algorithm is practicable and effective, and the carrier loop can capture up to 40% frequency offset of the symbol rate quickly and accurately.
A Fuzzy Logic-Based Approach for Multi-Places and Multi-Sensors Data Fusion
Authors: Lv Yi
Published: December 2012

According to the features and needs of collecting the data of temperature and humidity of current industrial environment, and the multi-places and multi-sensors data fusion as well, this paper proposes a fuzzy logic-based approach for the multi-places and multi-sensors data fusion. Firstly, this paper introduces the hardware construction of monitor system of temperature and humidity. Then, based on fuzzy set theory, the paper describes the model of fuzzy synthetic evaluation, and then proposes a novel algorithm for choosing the weights assignment proposals. Finally, a multi-places and multi-sensors data fusion approach, which is based on fuzzy synthetic evaluation, is presented. An example is also used for demonstrating the proposed approach. The results of system implementation identify that the approach can remove the influence of incorrect data on evaluating the temperature and humidity of current environment, and the data fusion result is objective and correct as well.
Design and Implementation of PAL to LVDS Video Adapter Based on FPGA
Authors: Wu Ling Fan , Yun Li Jun , Shi Jun Sheng , Wang Kun , Wu Ming Hua
Published: December 2012

In this paper, based on the FPGA and with a PAL decoder chip, LVDS coding chip and large capacity SRAM, the design and implementation of a PAL system for analog signals to the LVDS conversion of the video signal interface board. First of all, convert the analog signal of PAL to RGB565 digital video signal, and transform the interlaced scan into progressive scan. Then, through the frame rate conversion, resolution expansion etc. algorithm method to handle. Finally, to achieve the interlaced scanning, a resolution of 720×576, 25Hz PAL analog video signal, is converted to a progressive scan, a resolution of 1024×768, 60Hz LVDS video signal transmission. After the measurement, the resolution and frame rate of the video signal conversion interface board are all meet the design requirements. It has been verified the effectiveness of scheme.
A Precise Recycle Module of e-Paper as a Clean Production Process for Environmental Protection Considerations
Authors: Pa Pai Shan
Published: December 2012

This study describes a new precise recycle module as a clean poduction pocess and an environmental protection consideration that uses micro electroetching (MECE) and a new design of an intercross tool to remove defective transparent conducting oxide (TCO) nanostructures from the optical PET diaphragm surfaces for e-paper surface. This process takes very little time to remove the TCO easily and cleanly and is highly efficient both technically and economically. A large diameter of the cathode of the intercross tool combined with a small gap between the cathode and the workpiece corresponds to a higher removal rate of TCO. This higher feed rate combined with enough voltage results in a shorter machining time. A high rotational speed of the intercross tool can also improve dregs discharge and allows a higher feed rate of the optical PET. A small end radius of the cathode or a thin cathode of the bulge-form tool takes less time for the same amount (20 nm) of TCO removal.
A Software Refactoring Paradigm for Controling Changes on Control System
Authors: Xiao Fang Xiong , Li Yan , Zhu Xiao Dong , Fan Da Juan
Published: December 2012

In traditional, software implementation for requirement changes brings big effort on legacy architecture, and may decrease the readability, increase the possibility of error, and hard to maintain for software. So, software refactoring needs to be involved to solve the issue. A successful refactoring practice is presented in this paper to solve above issue met in a control application system supporting different boot process. It has been proved that the flexibility and extendibility are improved greatly than the original architecture. Furthermore, by encapsulating more details in the class and specified function, it reduces the complexity of interface. As a result, the risk of interface error is decreased, and the software quality is improved accordingly.
Research and Exploration for Pornographic Image Information Detection System
Authors: Tu Min , Xiao Wen
Published: December 2012

With the rapid development of Internet technology, network transmission spreads every corner of the world. Network brings convenience for the people, but at the same time, it also brings some security risks, such as the illegal diffusion of pornographic images on Internet. It can cause a series of social problems and legal issues, especially do great harm to the young people. This paper is to discuss the research and realization of the pornographic image information detection system.
A Note on the Exponential Diophantine Equation x2+q2m=2yp
Authors: Wang Jian Ping
Published: December 2012

ln this paper, using a deep result on the existence of primitive divisors of Lehmer numbers given by Y. Bilu, G. Hanrot and P. M. Voutier, we prove that the equation has no positive integer solution (x, y, m, p, q), where p and q are odd primes with p>3, gcd(x, y)=1 and y is not the sum of two consecutive squares.
Security Access of Power terminal on Trusted Computing in Smart Grid
Authors: Deng Song , Lin Wei Min , Zhang Tao , Ma Yuan Yuan
Published: December 2012

With the development of interactive business for smart grid, for the security access requirement of kinds of business terminal, this paper proposed security access of power terminal on trusted network connection in power of things which combined with power of things and kinds of power terminals on the basis of trusted network connection. By discussing in detail security access architecture of power terminal and flow, the feasibility of program design is confirmed.
Design and Implementation of 3G E-Commerce Trading System Based on Data Encryption and Web Service
Authors: Dong Wei , Ma Li Xin , Liu Li
Published: December 2012

The development of 3G has made E-commerce become conveniently and fast. A system is proposed in this paper that is a 3G mobile e-commerce transaction system based on Web Service. And the double data encryption algorithm is also applied. It can be paid online to realize the enterprise mobile users in the 3G network, shopping needs, and ensures the security.
Digital Halftoning Based on Clustering Analysis and Weighted Least Squares
Authors: He Zi Fen , Zhan Zhao Lin , Zhang Yin Hui
Published: December 2012

We propose a weighted least-squares-based halftoning model from human vision system(HVS) model and an efficient iterative strategy using gray image statistical information. First, the gray image is partitioned into several finite regions using clustering segmentation method. Next, the statistics of the mean and variance of the gray-scale pixel of each clustering are calculated. Finally, the new energy function is constructed using the weighted least squares method, which the reciprocal of the variance of the segmented regions are referred to as the weighting operator. Our method also incorporates a measurement based printer dot interaction model to prevent the artifacts due to dot overlap and to improve texture quality. The analysis and simulation results show that the proposed algorithm produces better gray-scale halftone image quality when we increase the number of clustering with a certain range. A performance measure for halftone images is used to evaluate our algorithm. The value of MSEv and PSNR for the partitions regions that the proposed algorithm achieves consistently better values of MSEv and PSNR than the LSMB algorithm. After four iterations of the algorithm of the proposed algorithm, the convergence error dropped to 0.25.
Based on Image Processing Technology of Video Precision Measurement System
Authors: Wang Jin Li , Zhu Juan , Zhang Shu Yan
Published: December 2012

This paper introduces a technique based on image processing method of non-contact measurement software system; the main process is based on the digital camera image enhancement processing and boundary extraction, As a proportion of system calibration are based on parameters, measurement of circumference of a part. The measurement accuracy accords with the actual production requirement, which proves the feasibility of video precision measurement system.
A Method of Testing Generation Based on Prioritized Pair
Authors: Wang Yu , Wu Hao , Sheng Zhen Yu
Published: December 2012

Combinatorial testing has lots of test cases, but software testers hope to get the best test coverage with the smallest test case suite. For the scale of produced test cases is so large that researchers have considered the implementation of the critical test cases. This article researches the classic combinatorial test methods and proposes methods to generate pair-wise testing cases with a priority. Firstly, we design formulas to compute the weights of priorities. Secondly, we adopt a greed algorithm to solve the combinatorial testing problems. Furthermore, we integrate the greed strategy into a genetic algorithm to improve the efficiency. It improves the testing efficiency while securing the detection rate of defects under limited resources.
The Moisture Testing System for Ultra-Dry Granular Material
Authors: Zong Rong Fang , Tian Jing Ming
Published: December 2012

This paper discusses the design of moisture testing system for ultra-dry granular material. It designs from software and hardware aspects in detail. In hardware design, humidity sensor of HM1520 and data acquisition board of PXI-6070E are used; signal conversion between voltage and humidity is based on sensor circuit; PC is used to manage data acquisition and analysis. In software design, programming is based on LabVIEW2011, it included five models such as DAQ, alarm value judgment, data saving, data querying, data printing etc. In system, the data acquisition is based on PXI bus. It is easy to operate data because of using the access database and LabSQL. The system has the following advantages: graphical editing language improving the programming speed, its interface is friendly for users to understand and operate because of visual interface.
Assessment of Information System Assurance Capability Based on SVM
Authors: Wu Deng Hui , Fu Yu , Wang Jia Sheng
Published: December 2012

Aiming at the shortcoming of commonly used assessment methods, this paper introduces SVM to information system security assurance capability assessment, builds a corresponding assess model. The simulation result shows that the method can get high assessment accuracy, and can solve the problem of subjective bias brought by experts and the problems of easily trapped into minimum point and over-fitting of neural network, the method is suitable for information system security assurance capability assessment.
A Compressed Representation of a Image
Authors: Wang Hai Tang
Published: December 2012

The image description space grayscale, color or texture changes, but the image storage and analysis are very complex. If it is a dynamic image, the amount of data is greater. Image compression for image storage and transmission are very necessary. In order to more save memory space and more be used as a compressed representation of a image, a image is mapped into a graph, we can use the labeling of graph to compress.
Reliability-Based Sensitivity Analysis for Machining Precision by Saddle-Point Approximation
Authors: Jin Ya Juan
Published: December 2012

Based on the saddle-point approximation theory, the reliability sensitivity formula is derived systematically. Then, combining the reliability theory with the sensitivity analysis method, the reliability-based sensitivity of machining precision for ball-end milling cutter is analyzed. Based on the premise that the probability distribution of random parameters is known, firstly, the saddle-point approximation theory is employed to solve the reliability of machining precision for ball-end milling cutter and, as a result, the saddle-point approximation method is proved accurate with higher speed in comparison with the Monte-Carlo method. Secondly, the reliability-based sensitivity is calculated. Finally, the effect of changes in machining parameters on the reliability of machining precision is analyzed.
Visualizing Phylogenetic Trees: Algorithms and Visual Comparison Techniques
Authors: Zainon Wan Mohd Nazmee Wan , Talib Abdullah Zawawi , Belaton Bahari
Published: December 2012

This paper is about visualizing tree structured data. In particular, the emphasis is on visualizing the similarities and differences between pairs of trees. The impetus for the work comes from the field of bioinformatics, where biologists construct complex phylogenetic trees to represent the evolution of species or genes. The two main issues that arise when comparing these data is to know how to efficiently and effectively compare phylogenetic trees, and how to visually present the results of the comparison. The primary approach is to present a new framework for tree structure visualization techniques that will display pairs of trees “face to face” with leaf nodes aligned. The results show that a combination of automatic and manual rearrangement is often effective in rapidly generating an arrangement that facilitates tree comparison, even for quite large trees.
Application of Data Mining in Analysis about Source of Students of Civil Universities
Authors: Zhang Qian
Published: December 2012

In recent years, affected by increasing enrollment and decreasing source of students, civil universities faced much more serious tribulation on source problem than before. In civil universities, low register rate influences their current living situation directly. The most important issue to civil universities is how to orientate source of students exactly and how to publicize their enrolment advertisements. C4.5 algorithm in Data Mining can analyze current situation about source problem of civil universities, obtaining common feature of civil universities’ source and provides evidences for enrollment admissions.
Design of Network Education Evaluation System Based on Data Mining Technology
Authors: Cheng Yun , Wang Yan Li
Published: December 2012

Network education has been received more and more attention by educators and researchers, but the current quality system of network education seems still not perfect. How to create an effective evaluation model by using modern technology has become an important issue for education workers. DM technology is effective means for abstracting useful information from vast data, which can be used for education evaluation. So introducing DM technology into network education evaluation system, and designing an evaluation model based on DM, will be a new and useful attempt for network education quality evaluation, and will provide a valuable reference for the construction of network education.
A Task-Oriented Group Selecting Model of Intermediate Ordnance Equipment Technique Support Force
Authors: Sun Yang , Yu Chang , Wang Xin , Jiao Xian Wei
Published: December 2012

This paper mathematically described the group selecting problem of intermediate ordnance equipment support agency. Through taking maximizing support ability of the selected group and minimizing support ability differences of each equipment type as the objective function, taking a minimum support ability of equipment, staffing level of the selected group and support agency as conditions, optimization model was put forward. And the effectiveness of the model is validated by the example computation.
A Natural Language User Demand Semantic Model for Remote Sensing Image Retrieval
Authors: Zhang Xia , Chen Liu Yuan , Zhu Xin Yan
Published: December 2012

Remote sensing (RS) image can be applied in many domains. Most research work on RS image retrieval is to meet the demand of professional user. However, there are demands for RS image that comes from non-professional users who propose the requests in natural language (NL) not filling in professional request forms. Some problems are needed to be solved to implement RS image retrieval based on NL user demand. The objective of this research was to propose a user demand semantic model to solve the problem of translation from NL user demand to value requirements. Based on plenty of materials investigated in application domains, the syntax and semantics of NL user demand was analyzed. Semantic relationship is summarized in terms of the semantic analysis. After that, a user demand semantic model is proposed and built with ontology. It can be conclude that the proposed semantic model may help to RS image retrieval based on NL user demand.
Photo Viewer Using Geometry Method
Authors: Ou Yuan Han , Liu Di , Hu Zhen Tian , Tan Ying
Published: December 2012

Traditional photo viewer can not provide 3D relationships of geometry scene between two photos. This paper presents a novel photo viewer using geometry method, and the only preparation work of our method is computing photos’ geometry information in advance. Our method first computed morphing matrixes from geometry information. We then constructed a camera motion using cosine function. Next, the morphing matrixes and camera motion were combined to draw a double-layer transition between two photos. Lastly, we demonstrated our photo viewer on a series of photos in campus. The results of a user study show that the experience of photo browsing is greatly enhanced with the proposed photo viewer.
Study on E-Commerce Trust Prediction Mode Based on Combination Parameters
Authors: Zhang Shao Zhong , Zhong Hai Dong
Published: December 2012

Based on the prediction of individual parameter and the theory of the correlation coefficient, it proposes a combination parameter trust prediction model to solve the parameter weights. The model takes correlation coefficient as the weight of the single parameter, and trust evaluation and prediction analysis is conducted in the form of combined indictors. The method of taking the single item parameters as the foundation of forecasting can increase a variety of items in the forecast parameters dynamically. At the same time, using correlation coefficient as the form of weight can maximize the weights of some parameters with high accuracy and reduce the weight of some parameters with poor accuracy. At last, an optimization algorithm of combination parameters prediction model is designed, and experiments show that the proposed combination parameters trust prediction model of e-commerce has a better accuracy compared to several other typical prediction models.
Semi-Automated Computer Analysis of Retinal Vessels in Premature Infants
Authors: Turior Rashmi , Chutinantvaron Pornthep , Uyyanonvara Bunyarit
Published: December 2012

Almost all ocular and systemic diseases affect blood vessel attributes (tortuosity, length, width, and curvature). Quantitative measurements of these attributes could thus provide useful tool for diagnosing the severity of several diseases. However, it is still unclear how best to represent the attribute values of multiple vessels in a single image. Graphical user interface (GUI) is a promising step towards the development of a semi-automated computer assisted tool. The objective of this study is to develop a GUI for effective observation and robust retinal blood vessels analysis by ophthalmologists and to comprehend the distribution of vessels attributes. Blood vessels from 45 digital fundus images of infant retina are extracted, its centerline is delineated and tortuosity is analyzed from different putative and proposed techniques to provide reliable and comprehensive information for the retinal vasculature. K means clustering technique is used for classification analysis of different tortuosity metrics and its performance is evaluated based on sensitivity, specificity, and accuracy. The results are validated by comparing with expert ophthalmologists’ ground truths. Among the various proposed tortuosity metrics, one of our tortuosity indexes attains the highest classification accuracy of 91.42% with sensitivity and specificity of 86.36% and 97.82% respectively.
The Synthetic Evaluation Method of Quayside Container Crane Selection for Container Terminal
Authors: Yan Wei , Fang Xiao Long , Lu Hou Jun
Published: December 2012

To ensure the quasi class rate of large container liner, the requirements of handlingcapacity and efficiency for handling equipment will be higher. Therefore, meeting the requirementof increasingly large-scale on container ship is an important factor on Quayside of Container Crane (QCC) selection proposal. Under the premise of meeting handlingcapacity and efficiency, it should consider the reliability,economy, advancement and other factors of handling equipment. In the foundation of analyses the technical parameters and cost factors on QCC selection proposal, this thesis gives a synthetic evaluation method of QCC selection proposal, including the choice of index system and weight determination, and it gives sensitivity analysis from different factors that affect the QCC selection scheme result. Be combined with cases, this thesis describes the synthetic evaluation method for selection proposal is practical.
The Application of Data Mining in the Civil Aviation Accident Analysis
Authors: Zhu Dai Wu , Ni Yin
Published: December 2012

At present, our analysis of the aviation accident mainly limited to the methods of mathematical statistics, the analysis method means of a single, and in a passive state, so the accident prediction is poor. This paper, basis on the rough set theory in data mining and preferential information ,we improve the rough set attribute reduction algorithm, and applied to civil aviation accident analysis to indentify the potential law of accident.
Implementation of Meta-Services for Content Delivery Network Service in the Cloud Environment
Authors: Wang Xiao Ying , Jin Xin , Fan Li Hua , Huang Wei Tong
Published: December 2012

As the content delivery network becomes widely-used, storage has emerged as a typical kind of service in the cloud environment. This paper conducted a research on the management issues for such applications, and implemented some meta-services upon the underlying cloud services. The architecture of the system was described in detailed and the detailed design of four types of meta-services was further discussed. Experiments show that the implemented prototype can work effectively and meaningful suggestions could be given according to users’ requests, and thus depict the advantages of employing the proposed meta-services.
Design and Realization of Agricultural Information System Based on WebGIS
Authors: Xu Dong Sheng
Published: December 2012

In view of the developing status of agricultural information system up to date, this essay, based on WebGIS, introduces the design and realization of information system for the agriculture information on a basis of NET by using MapGIS-IMS as the tool for the build-up of GIS, Which has the agricultural information system function for all levels from the use of agricultural management department, realize information inquiry management, statistical analysis and release function.
DOI of Local Information Service Database Based on CALIS-Standard
Authors: Zhou Bo , Liu Wen Liang , Liu Xu Hui
Published: December 2012

The unstable linking of network and difficult finding on internet make information resources lacking of durability so the sharing of digital information resource and the location management has become the key research of the serving of information resources. The paper puts forward CALIS-DOI model fitting the requirements of local information service database construction by analyzing application situation of DOI in building local information resources services and fully considering the functions of CALIS in building of local information resources service. The model will be put into the local information resource serving systems and serve for digital location and information transmit.
A New Data Perturbation Method of Reference Control in Statistical Database
Authors: Zou Guo Liang , Zhang Miao Miao
Published: December 2012

Data perturbation is a method of reference control in statistical database. Data modification and data exchange are two methods of data perturbation. Data modification replaces the original data with the sample data sequence after deciding probability distribution function of the original data and generating sample data sequence. Data swapping interchanges attribute values of records. While the algorithm of the former is complex, this paper presents a new method in which the sample sequence generation is skipped. We simply sort the original data, divide them into different groups and exchange attribute values of the same group. Experiments show that the proposed method can effectively simplify the former method and guarantee the safety of the statistical data at the same time.
Web Integrating Analysis Based on XML and Ontology
Authors: Zhang Jin , Li Yan Heng
Published: December 2012

Web information resources become more and more heterogeneous, with the rapid development of Internet and Information technology. How to discover and obtain valuable information in Web repository is an important and meaningful subject. This paper introduced the interrelated theory and technology of Heterogeneous Data Integrating.
A Locality Sensitive Hashing Technique for Categorical Data
Authors: Lee Kyung Mi , Lee Keon Myung
Published: December 2012

The measured data may contain various types of attributes such as continuous, categorical, and set-valued attributes. Several locality-sensitive hashing techniques, which enable to find similar pairs of data in a fast and approximate way, have been developed for data with either numeric or set-valued attributes. This paper introduces a new locality sensitive-hashing technique applicable to data with categorical attributes.
Efficient Identification of Frequent Family Subtrees in Tree Database
Authors: Lee Kyung Mi , Lee Keon Myung
Published: December 2012

This paper introduces a new type of problem called the frequent common family subtree mining problem for a collection of leaf-labeled trees and presents some characteristics for the problem. It proposes an algorithm to find frequent common families in trees. To its applicability, the proposed method has been applied to both several synthetic data sets and a real data set.
Applying the Technology of Internet of Things to Urban Pipeline Gas Metering via Mobile Data Acquisition
Authors: Bao Li Wei , Huang Wen Qian , Fan Hui Qun
Published: December 2012

To improve the urban pipeline gas supply service, IoT technology is introduced to sense the user terminal gas consumption state which the SCADA system can not solve. In the existed application technology of IoT to urban gas metering, there exist difficulties of installing, power supplying and maintaining of concentrators. The mobile data acquisition based IoT application system to urban pipeline gas metering is presented and the mobile data acquisition terminal has been described in detail.
An Efficient Trajectory Clustering Framework Based Relative Distance
Authors: Bo Guan , Liu Liang Xu , Fan Jian Bo , Chen Jin Yang
Published: December 2012

along with more and more trajectory dataset being collected into application servers, the research in trajectory clustering has become increasingly important topic. This paper proposes a new mobile object trajectory Clustering algorithm (Trajectory Clustering based Improved Minimum Hausdorff Distance under Translation, TraClustMHD). In this framework, improved Minimum Hausdorff Distance under Translation is presented to measure the similarity between sub-segments. In additional, R-Tree is employed to improve the efficiency. The experimental results showed that this algorithm better than based on Hausdorff distance and based on line Hausdorff distance has good trajectory clustering performance.
An Application Study of the AISAS Model-Based Hotel E-Marketing
Authors: Kuang Jia Qing
Published: December 2012

With the rapid development and application of the Internet, both the way and the field of hotel marketing have seen changes. The traditional pattern and way of hotel marketing have become incapable of adapting to the development of the times, and hotel marketing in the new period is launched more and more via the informationalized online platform before becoming the major means. This paper, on the basis of analyzing the formation and development of the AISAS model, studies the hotel consumer behavior and provides targeted solutions to the problems existing in the present day hotel e-mark.
An Automatic Control Method for Central Heating of Public Buildings
Authors: Li Feng , Wang Yi Chang , Zhou Lang
Published: December 2012

Our current thermal management in public buildings still remains in the stage of extensive management, which leads to the difficulty in guiding a heat-user to cultivate the awareness of energy conservation. As a result, a large quantity of heat is wasted. Therefore this article introduces a thermal control mechanism based on strategies, and proposes a design of zigbee-based wireless temperature collecting method to collect temperature in the heating field. On the basis of these techniques, an automatic control system for the heating of public buildings is achieved. The system fits the users’ heat use habits and is easy to operate, so that it can guide the heat users’ awareness of energy conservation and reduce energy waste.
A Flexible Security Architecture for the Internet of Things
Authors: Wu Qi Wu , Jiang Ling Zhi
Published: December 2012

Security architecture is the key problem of each network construction, Internet of things (IoT) is no exception. Firstly, existing research results in relation to security architecture of IoT are summarized. Then, on the basis of the analysis of the IoT security problem, this paper discusses the network security service requirements of IoT. Finally, a novel hierarchical and flexible secure architecture for IoT is proposed, which includes the security perception layer, security network layer and security application layer. Meanwhile, it involves security services entity and security management entity. The security architecture can provide strong technical support for security construction of IoT.
Safety Warning System of High Temperature and Pressure Pipeline Based on GSM
Authors: Huangfu Xiao Hong , Liu Yue Ming , Liu Tao , Lou Jun , Cai Qing Mu
Published: December 2012

An online safety warning system based on FBG sensing elements was developed to prevent the leakage or explosion of the high temperature and pressure pipeline. On the basis of using optical sensing interrogator, a computer monitoring software has been designed to monitor the surface strain of the high temperature pipeline, and this software was written in LabVIEW，including signal analysis, real-time view, data management and related functions. Combining the software and GSM module, a SMS warning and reversing controlling system has been developed into the remote safety warning system.
Theoretical Analysis for Relations between Nonlinearity Errors and PBS in Heterodyne Interferometer
Authors: Hu Hai Jiang , Zhang Cuijuan
Published: December 2012

PBS is an important optical part of the heterodyne interferometer which separates the two orthogonal beams with the different frequencies from an incident mixed beam. The relations between the nonlinearity errors and the PBS in the heterodyne interferometer are studied in the paper. From the theoretical analysis, the nonlinearity errors don’t caused by the imperfect PBS with the nonideal transmission or the nonideal reflection, while the nonlinearity errors exists in the imperfect PBS with the nonideal transmission and the nonideal reflection. It’s a useful conclusion in the optical design of heterodyne interferometer.
Real-Time and Robust Stereo Visual Navigation Localization Algorithm Based on ORB
Authors: Xu Yun Xi , Chen Fang
Published: December 2012

The biggest challenge of visual navigation localization is feature extraction and association. Currently, the most widely used method is simple corner feature and simple matching strategy based on SAD or NCC. Another option is scale invariant feature and rotation invariant descriptor, typically as SIFT, SURF. Feature extraction and matching methods based on the SIFT or SURF are accurate and robust. However, its computational complexity is too high and not suitable for the real-time navigation localization task. This paper presents a new fast, accurate, robust stereo vision navigation localization method, based on a new developed ORB feature and descriptor. First, we presented our matching method based on ORB. Then, we obtained matching inliers and an initial motion estimation parameters using RANSAC and three points motion estimation method. Finally, nonlinear motion refinement method was used to polish the solution. Experimental results show that our method is robust, accurate and real-time.
Three Dimensional Manipulation of Cells Using Holographic Optical Tweezers
Authors: Tao Tao , Li Jing , Lin Yang
Published: December 2012

A holographic optical tweezers platform was built and a multi-plane adaptive-additive algorithm was used to generating holograms for the reconstruction of optical traps in three-dimensional (3D) spaces. Experiments of manipulating cells were conducted on such platform and complex 3D structures were built with yeast cells. The results demonstrate that holographic optical tweezers can manipulate groups of cells in three dimensions and effectively trap and separate cells in the direction of the optic axis without harming the cells. Based on those versatile functions, it is proved that holographic optical tweezers is a powerful tool for single cell analysis.
Application of Laser Microscope System for Evaluation of Separation Agents
Authors: Reiterman Pavel , Kostelecká Michaela , Kolář Karel , Konvalinka Petr
Published: December 2012

This paper demonstrates application of laser confocal scanning microscope system for fair-face concrete surface evaluation. Measure system presents a new generation optical system for identification and description of esthetical imperfections of various building materials. System enables 3D observation and high-precision 3D measurement in real time.