bluuebunny/crossref_metadata_2025 huggingface dataset:
A JPEG Steganographic Method Based on Syndrome-Trellis Codes with Wetness-Scale
Authors: Ye Xue Yi , Lu Guo Peng , Zhou Wei Fang , Wang Yun Lu
Published: December 2012

Aiming at the JSTC’s shortcomings, we present an improved JPEG Steganographic method using Syndrome-Trellis Codes with Wetness-Scale in this paper. Firstly, the proposed method excludes the DC coefficients from usable coefficients for information embedding; secondly, when using Syndrome-Trellis Codes to modulate the message bits, it assigns each individual cover element with a special changing cost value provided by our predefined embedding impact model (i.e. wetness-scale), and endeavors to constrain the embedding changes to the low-frequency and middle-frequency DCT coefficients and minimize the embedding impact. The experimental results show that in comparison with JSTC and Jsteg 、F5、MB, the proposed method has stronger ability of anti-steganalysis, and especially when at the embedding rate 0.1, its highest detection accuracy by one of the current best bind steganalysis methods only achieves at 0.5435.
Intrusion Detection Method Based on LEGClust Algorithm
Authors: Zhao Yi Lin , Zhou Qing Lei
Published: December 2012

Clustering analysis is a typical unsupervised learning technology in data mining, which can improve the efficiency of intrusion detection system. LEGClust cluster algorithm is a new clustering analysis technique and it can effectively find the arbitrary shape clusters hidden in the data. We apply this algorithm to the intrusion detection field and present an intrusion detection method. We introduce the real dissimilarity among data into the determination of data connection relationship. Experiment results on KDD CUP1999 Dataset show that LEGClust algorithm is an effective technique for intrusion detection and the improved LEGClust performs even better.
Recent Research Progress on Extension Data Mining Methods
Authors: Yang Chun Yan , Li Zhi Ming
Published: December 2012

This paper is a summary about recent research progress that describes the basic methods utilizing basic theory and methods of Extenics to mine the knowledge based on transformations in various fields’ database and knowledge base (“extension knowledge” for short) . It’s shown by studies that the existing data mining theory and technology will be developed. These methods can be applied to the fields of marketing, customer relationship management, finance and securities, telecommunication, and medical treatment, etc., which will provide effective decision supports to solve the contradictory problems in these fields.
More Human Participation Chinese Character CAPTCHA: Generating Strong Text-Based CAPTCHA Based on Adding More Human Participation
Authors: Chen Yang , Zhang Yi Chun
Published: December 2012

Many websites use CAPTCHAs ("Completely Automated Public Turing tests to tell Computers and Humans Apart") in an attempt to block automated interactions with their sites. However, widely deployed schemes can be broken with simple but novel attacks. As safety problem has always been very important, in order to meet safety requirements, we through reading many related articles and finding the existing problem of the CAPTCHA. To solve these problems, we developed a new chinese character scheme adding more human participation. This new scheme can increase the robustness of CAPTCHA and effectively prevent the automatic program attacks.
Study on Quantum Bit Commitment
Authors: Guo Xiao Qiang , Li Li Hong , Luo Cui Ling , Shi Yi Shuo
Published: December 2012

The Bit Commitment (BC) is an important basic agreement in cryptography . The concept was first proposed by the winner of the Turing Award in 1995 ManuelBlum. Bit commitment scheme can be used to build up zero knowledge proof, verified secret sharing, throwing coins etc agreement.Simultaneously and Oblivious Transfer together constitute the basis of secure multi-party computations. Both of them are hotspots in the field of information security. We investigated unconditional secure Quantum Bit Commitment (QBC) existence. And we constructed a new bit commitment model – double prover bit commitment. The Quantum Bit Commitment Protocol can be resistant to errors caused by noise.
The Dual Mapping Key Variable Voice Encryption Algorithm
Authors: Zhou Hui , Wang Zhi Jun , Yan Bing
Published: December 2012

In this paper, the cat map and the chaotic map are analyzed, and a key variable algorithm which combines chaotic map and cat map is proposed. What’s more, a variable key encryption system processes combined with the voice preprocessing is put forward. The simulation results show that the algorithm has a good voice encryption security features.
A Steganalysis Based on OC-SVM and Two Clustering Methods
Authors: Yang Hai Bin , Guo Dun Tao , Luo Peng
Published: December 2012

In this paper, a novel and efficient steganalysis based on improved K-means clustering using One-Class Support Vector Machine (OC-SVM) was proposed to blindly determine the existence of hidden messages in an image. The performance of sample clustering is concerned in the OC-SVM with multi-sphere. In previous work, the K-means was mainly used to create such multi-sphere by clustering. But the traditional K-means depends on initial clustering centers and ended local minimum value. So, to improve the clustering performance of K-means, the SA is employed into the scheme, which can create more reasonable multi-sphere by finding global optimum solutions in the clustering process. Simulation results with the chosen feature set and well-known steganographic techniques indicated that our approach was able to afford reasonable accuracy to distinguish between covers and stego images.
A Watermarking Scheme Based on NSCT Using Computer-Generated Hologram
Authors: Yang Xiao Yuan , Yang Hai Bin , Luo Peng
Published: December 2012

A robust watermarking scheme that used computer-generated holograms as the watermark is in NSCT (NonSampled Contourlet Transform) domain was proposed. To maintain imperceptibility and robustness, a repeated embedding algorithm is adopted to embed the mark hologram into the low-frequency subband of the NSCT host image. Compared with other watermark schemes using digital holograms, the proposed algorithm has the obvious advantage in robustness The experimental results demonstrated that the proposed method had good robustness to resist common attacks such as, rotation, scaling, translation, image flipping, combined attacks, filtering, occlusion, cropping, and JPEG compression.
Hybrid Finite Automata-Based Algorithm for Large Scale Regular Expression Matching
Authors: He Wei , Guo Yun Fei , Hu Hong Chao
Published: December 2012

Fast data transmission put forward high requirements on network content matching (NCM). Due to the high time complexity, Nondeterministic Finite Automata (NFA) was unable to meet the demand of regular expression matching (REM) which was the core of NCM; Transfer NFA to Deterministic Finite Automaton (DFA) could enhance the throughput, but led to state explosion, which increased demand for memory. To balance memory and throughput, state explosion in the transformation from NFA to DFA has been analyzed and a new method DC-DFA is presented for large scale REM. DC-DFA is based on hybrid automata structure which composed of NFA and DFA. DC-DFA introduces GradeOne classification to cut the memory usage and deep classification to improve throughput. The results show that for serious state explosion, DC-DFA could reduce 75% DFA states and improve memory utilization efficiently while maintain high system throughput.
Reconfigurable Aggregated Multicast Scheme Based on QoS Categories and Tree Similarity
Authors: Mo Han , Lan Ju Long , Tian Ming
Published: December 2012

Traditional IP multicast had poor scalability. Larger the number of groups was, more forwarding states were stored, which meant more memory overhead and slower forwarding process. To solve the problem, a reconfigurable aggregated multicast scheme was proposed. This scheme provided a unified service for multiple multicast groups based on QoS categories and tree similarity. It could also be reconfigured with QoS requirements and multicast groups change. Results show that the scheme can achieve more forwarding state reduction compared with conventional aggregated scheme under certain bandwidth waste threshold or the number of groups.
Research on Micro-Certificate Based Security System for Internet of Things
Authors: Du Li Ping , Li Ying , Xu Guan Ning , Duan Fei
Published: December 2012

The rapid development of internet of things puts forward urgent needs for security. The security system must be studied to adapt to the characteristics of the internet of things. The micro- certificate based security system for internet of things takes full account of the security characteristics of things, and uses the symmetric cryptographic algorithms and security chip technology. This security system can meet the security requirements for large-scale sensor’s authentication, signification and encryption/decryption in internet of things, and improve the security performance of internet of things greatly.
The Security Protection and Technology Analysis of Information System
Authors: Wang Hua , Zhao Guo Hong , Shi Bo Shan , Meng Xian Jun
Published: December 2012

Based upon the resume of information system security, this paper sets forth security system of information system and the related system security technologies, such as network security technology, mainframe security technology, application security technology, database security technology, cipher security technology and environment security technology, and analyzes the security technology evolution of the information system.
Web Sites Information Security Management Based on B/S Pattern
Authors: Zhu Xiao Long
Published: December 2012

This paper summarizes the development of electronic records management, and due to current defects and shortcomings, discusses the more effective and reasonable information security management program. For the system security issues, the paper has done an overall security analysis of system from the application layer, network layer, and database layer to physical and management levels, and has made a system’s security strategy.
The Data Concurrent Operation of Multi Medial Xtension Technique
Authors: Yu Qing Sheng , Zhang Jian
Published: December 2012

The concurrent operation of SAD value computing can be actualized by use of the SIMD technology, We give the image organization optimization algorithm of improvement from the image of Single Instruction Multiple Data parallel operation，Such as the idea of oriented object to lead into Parallel operation process that calculated SAD value．through the test result of code device moving forecast for Multi Media extension optimization velocity testing，we know that in current most complex video coding H.264／AVC，the implement of this algorithm can raise the coding speed of encoder obviously，and offer guarantee to realize the video communication of real time in narrow bandwidth.
Remainder Reliability and Robust Estimation: A Case Study Using Twelve Simulated Leveling Networks
Authors: Jia Ning Ning , Ge Yong Hui
Published: December 2012

Total reliability, also called the average redundant observation component, is an indicator of a survey network. It summarily shows whether gross errors contained in observations on a survey network may be eliminated or weakened by robust estimation methods. Based on total reliability, the current paper presented the concept of remainder reliability, which essentially showed whether gross errors might be eliminated or weakened by robust estimation. Taking 12 leveling networks with different remainder reliability adjustments as examples, simulation experiments were used to compare 4 frequently used robust estimation methods. The results indicate that when observations simultaneously contain one gross error and if the remainder reliability RRg≥0.30 , robust estimation methods may eliminate or weaken these effects. However, if RRg>0.40, all the four robust estimation methods may effectively eliminate or weaken these effects.
Research of Smart Gird Functional Safety Certification
Authors: Huang Xiu Li , Zhang Tao , Ma Yuan Yuan , Wang Yu Fei , Hua Ye
Published: December 2012

With the increasing number of attacks against industrial control systems, functions security issues of the smart grid industrial control system gradually become the focus of research in the field of smart grid. This paper introduced smart grid industrial control systems threats which faced and incidents firstly, and analyzed the current situation of the functional safety certification, including certification bodies, certification tools and certification classes; Then, researched the smart grid industrial control system functional safety certification, gave the content of the smart grid industrial control system functional safety certification, and made the design of its hardware evaluation process; Finally, we discuss the research status of functional safety certification, and pointed out the problems that the smart grid industrial control system functional safety faces.
Research on a Touch on the Stress Model
Authors: Wang Qi , Shi Su Jiao
Published: December 2012

An impact event is a complex phenomenon that includes the interaction between projectile and structure, motion of the projectile and the dynamics of the structure. Complete modeling of an impact event can always be done using a 3D ﬁnite element model, The Finite Element Model(FEM) approach is often very costly both from modeling and calculation duration point of views, so it can be simpliﬁed by using simpliﬁed impact models, It can be used for the estimation of the contact force history. In this paper, firstly, analyze the current situation of the study of the collision of the home and abroad , secondly, Ocean Bottom Seismometer(OBS) whereabouts and hit the bottom are analyzed in detail, and finally come to the impact solution formulas.
The Drivers and Path of High-End Oriented Development in Electronic Information Manufacturing Industry under Modularity Perspective
Authors: Li Chun You , Zhang Hua Hai , Zhang Xin
Published: December 2012

In this paper, the issue of high-end oriented development in electronic information manufacturing industry is discussed. Based on the view of modularity, industrial value chain and driving forces have been analyzed to understand the basic law and motivation in development process. According to ‘visible design rules’ and ‘hidden design parameters’ in the modular system, the path modal of high-end oriented development has been built, which indicates that the synergetic effect, high-tech and high added value can be obtained by building and enhancing the synergy process and technological innovation.
Two-Point Multi-Section Linear Nonuniformity Correction of IRFPA Based on FPGA
Authors: Shi Chun Lei , Jiang Guang Yuan , Yang Guang Min , Xin Shi
Published: December 2012

The two-point multi-section method has higher precision than two-point correction algorithm and had lower operation load than multi-point correction algorithm. We realized the two-point multi-section method by the use of FPGA hardware module.
Artificial Neural Network in the Autopilot System Application of Troubleshooting
Authors: Zhang Peng , Zhang Shi Chao
Published: December 2012

the existing fault diagnosis system in fault detection aspects of Boeing 737 A/P is effective, but in fault isolation aspects performance is poor, therefore using ANN technology need to improve its diagnosis system. A/P for the typical fault, the three layers feed forward artificial neural network structure, this paper introduces the conjugate gradient BP algorithm and gives the diagnosis results. Diagnosis results show that artificial neural network can accurately identify system three typical faults, improve the efficiency of fault diagnosis and fault isolation capability.
Design and Construction Practice of Collaborative Knowledge Management Platform in a Large Regional Medical Center
Authors: Zhu Lin Hong , Wang Yao Hui , Chen Ai Fen , Feng Xiaohong
Published: December 2012

With the rapid development and expansion of Taizhou Enze Medical Center, the original management model is lack of an effective way, such as knowledge gain and accumulation, the knowledge exchange and sharing, etc.. To improve the cooperativity of knowledge among inter-hospital or inter-departmental, realize knowledge share and deposit and comprehensively improve the efficiency, our medical center engaged Shanghai Visionsoft to build Enze Collaborative Knowledge Management Platform (CKMP). The main function modules of CKMP include information release platform, business process platform, project management platform, communication platform, subject column and other kinds of knowledge map. Now, CKMP becomes a good vehicle to improve work efficiency, enhance organizational memory and build a learning organization. However, CKMP can't be done in a short time. It is a process of long term accumulation, in which unremitting efforts are indispensable.
OSL: An Optimized Strategy of Data Replicas for Online Social Network
Authors: Liu Zhi Han , Han Shao Teng , Yang Fang Chun
Published: December 2012

With the continued growth of social network users, nearly all the OSN (Online Social Network) providers replicate users’ data to different server nodes in order to ensure high reliability. Unlike traditional web applications, OSN represents a different class of data system that most of the data is based on friend relationship. In this paper, we propose OSL (Online Social Locality) algorithm, an online optimized strategy of data replicas based on social locality. This algorithm can decide the server node the replicas should be saved, and it improves system performance significantly.
Service-Oriented Smart Mine Construction
Authors: Song Zhen , Chen Jian , Feng Yan Hua
Published: December 2012

With the development of computer, networking and automation technology, mining information technology becomes more intelligent and more integrated. This paper establishes a smart mine system in one mining enterprise of East China Mineral Exploration and Development Bureau. By adopting service-oriented architecture, smart mine system reuses the existing function modules and integrates the data through Web service to form a comprehensive service system to solve information island problems, which helps to facilitate production, operation and management of mining enterprises.
Study on Effects of Innovation and Vocational Training on Operation Performance by Implementation of ERP
Authors: Lin Shih Hsien , Lin Huan You , Kao Pi Lien
Published: December 2012

The development of information technology has brought rapid changes to the industries, thus causing serious impacts on small and medium enterprises (SMEs). This study treated the employees in SMEs as the subjects to probe into the effects of vocational training and innovation management model on corporate operation performance when SMEs implement the enterprise resource planning (ERP) system. According to the empirical findings, the employees suggested that ERP implementation is the most important. Through project preparation, business blueprint analysis, technical realization, final preparation and effective support, operation performance can be fulfilled.
The Application of RFID Technology in the University Library
Authors: Ning Lu , Xing Yan Li
Published: December 2012

This paper opens with an introduction of RFID technology and its application in libraries at home and abroad, discusses the advantages of RFID technology in the university library applications, and analyzes the problems of RFID technology in the university library applications from the aspects of technical standards, operating frequency, application costs, and management of the library automation system integrated and compatible hardware and software update service and safety aspects.
The Construction and Innovation of Information Service System for Academic Libraries of Agriculture
Authors: Li Yun Le , Ning Lu , Xing Yan Li
Published: December 2012

With the rapid development of computer and Internet technologies, users increasingly demand for more individualistic information. In the era of Internet, it has become an important task for academic libraries of agriculture to construct a suitable information service system and to integrate various resources, so as to enable users to have access to individualistic information system.
The Evaluation of City Emergency Management System Results Based on BP Neural Network
Authors: Jiang Dong Min , Li Zeng Bin
Published: December 2012

City Emergency Management System Results (CEMSR) is very important to city disaster to reduce casualties and property loss. BP neural network evaluates CEMSR. And CEMSR practical evaluation procedures are obtained. In this paper SPSS neural network toolbox was used to design and calculation the network. The model error achieve a acceptable range, through training and texting a lot of study samples. Instance verified this method accuracy and operability. Further, a new method can be provided for the relevant government’s authorities which evaluate the city emergency management system results.
Promote the Grass-Root Agro-Technique Extension Service and Management with Information Technology
Authors: Yin Guo Wei , Wang Wen Sheng , Sun Zhi Guo
Published: December 2012

Grass-root Agro-technique extension plays an important role to the development of “Three Rural Issues”, modern information technology can promote the work of Agro-technique extension. This paper mainly introduce the things what we have done in order to promote the service and management work of Agro-technique extension. Through the establishment of information platform and distribution information equipments, provide the direct service to agro-technique promoters, agriculture experts and some agro-technique extension managers, achieving better service to the small holders and improving the agro-technique extension management finally. After a long time of hard work, we gain some experience and lessons that will be shared with you.
Convergence Analysis of the Spectral Method for Second-Kind Volterra Integral Equations with a Weakly Singular Kernel
Authors: Zhang Yiao Yong , Wu Hua Feng
Published: December 2012

The Legendre spectral Galerkin method for Volterra integral equations of the second kind with a weakly singular kernel is proposed in this paper. We provide a rigorous error analysis for the proposed method, which indicates that the numerical errors (in the L2 -norm and the L∞ -norm ) will decay exponentially provided that the source function is sufficiently smooth. Numerical examples are given to illustrate the theoretical results.
Parallel Monte Carlo Simulation of Single Polymer Chain
Authors: Gao He Bei , Li Hong , Qian Chang Ji
Published: December 2012

We calculated the properties of a single flexible polymer chain adsorbed onto a planar surface with two types of nodes, denoted by letters A and B by Monte Carlo methods. One A-type node contacting to the surface has an attractive interaction of strength E=-1. One node of B-type has no affinity for the surface, E= 0. The polymer chain is modeled as a self-avoiding walk of N steps started at the center of the flat surface on the cubic lattice. Statistical properties of the polymer chain are computed by using message passing libraries. We obtain linear speedup by parallel computing the independent samples.
Towards Big Data to Improve Availability of Massive Database
Authors: Miao Jia Jia , Chen Guo You , Du Kai , Fang Zhong Jun
Published: December 2012

Due to the huge scale and the number of components, big data is difficult to work with the use of relational databases and desktop statistics and visualization package. Much database replication technology is used to increase the MTTF, but few have a large database system, the traditional method of backup is not feasible, expensive manpower costs reduce MTTR. On the basis of analyzing the characteristics of data in large databases, we propose a new method called Detaching Read-Only (DRO) mechanism and its changes DRO+. It reduces MTTR by reducing the physical change of the data in each database, by separating data node size granularity. Analysis and experimental results show that our method can not only reduce the MTTR an order of magnitude, but there is no additional hardware costs, but also reduce the high human costs.
A Bi-Level Programming Model of the Marketing Resources Based on Customer Equity in CRM
Authors: Weng Sheng Bin , Yu Jie Long
Published: December 2012

In this paper, we focus on the allocation model of the marketing resource in CRM. We developed a bi-level programming model based on the customer equity theory. This model will help the corporate to coordinate the marketing resources allocation process with customer equity growth. It will strengthen the capacity of customer relationship management and keep the competitive advantage in a long run.
An Operational Environment for Virtual Desktops with Network Booting
Authors: Luo Fei , Yi Jian Jun , Chen Lin
Published: December 2012

Although the virtual desktop reduces the complex management and maintenance of the traditional desktop environment, it will increase the maintenance complexity of the user operating environment and reduce the efficient utilization of local resources. To address the above issues, a novel diskless virutual desktop framework is proposed in this paper. In this framework, the operating environment is centrally managed, which is network booted from the image server. Then by means of the remote virtual machines, the capability of the runtime is extended by both the local and remote resources. Furthmore, a web-based browser shell is provided where both the local and remote resources are transparently provided to schedule the tasks among them. An experiment is carried out which verifies the feasibility of the framework.
Design of Li-Ion Battery Management System Based on Atmega16
Authors: Hu Gui Hua , Xu Jun Ming , Zhou Ji Jun , Hu Xiaoping
Published: December 2012

Due to the negative effect of li-ion battery monomer inconsistent performance in electric bicycle, a low-cost intelligent li-ion BMS (battery management system) is designed based on atmega16. Multi-channel analog switch and differential amplifier are used for multi-channel data acquisition, and the equalization circuit is used for the balance of each single cell. The results show that the design can realize the intelligent management of li-ion battery.
Construction of Design Process Ontology Database Based on Process Ontology
Authors: Shi Xin
Published: December 2012

Based on product design process knowledge reuse, according to the characteristics of ontology knowledge representation, process ontology knowledge representation method is offered. The paper extracts the category of design process, defines and describes the attribute and relationship of these categories. Then, the design process ontology database based on process ontology is constructed. As a result, it supports to achieve the sharing and reusing of design process knowledge.
Practical Applications of Motor Imagery EEG Based on BP Neural Networks
Authors: Wu Hua Liang , Mu Zhen Dong , Hu Jian Feng
Published: December 2012

In the application of the classification, neural networks are often used as a classification tool, In this paper, neural network is introduced on motor imagery EEG analysis, the first EEG Hjort conversion, and then the brain electrical signal is converted into the frequency domain, Finally, the fisher distance for feature extraction in the EEG analysis, identification of the study sample was 97 86% recognition rate is 80% of the test sample.
Design of Neural Network Based on Rough Set
Authors: Zhang Xue Min , Mu Zhen Dong
Published: December 2012

After years of development, the neural network classification, clustering and forecasting applications have a lot of development, but the neural network has the inevitable defects, if you enter the attribute set, the classification boundaries are not clear, convergence low efficiency and accuracy, there may even be the state does not converge, using rough set theory, the right value to modify the function to be modified, and joined the contradictions sample test module, after the use of EEG to verify reached the deletion of number of features and the purpose to improve the classification accuracy.
Estimation of Leaf Thickness with Remote Sensing
Authors: Sui Xue Yan , Zhang Xiaodong , Wang Yong , Li Shao Kun
Published: December 2012

Leaf thickness is one important index of describing plant growing conditions. But the measurements now are all tedious and destructive. In order to carry out real-time, live, non-destructive testing of leaf thickness, the study took cotton leaves as the research object. The correlations of leaf thickness with reflectance, vegetable index and spectral figure index were analyzed separately. And then the cause of correlation was studied. Three regression models were set up with the 3 parameters which had high correlation with leaf thickness. Among these models, the highest relative error is 7.4%, and the RMSE is 0.051 mm. It is feasible to measure alive leaf thickness untouchably with Hyper spectrum.
A Study of Personnel Cultivation of Rail Transit in Higher Vocational Education
Authors: Xing Hong Xia
Published: December 2012

The present study analyzes some problems of the current higher vocational education on urban rail transit by investigating personnel cultivation of rail transit in higher vocational colleges in China. Subsequently, the researcher deeply discusses the following aspects: speciality establishment, curriculum system construction, systematic textbooks, teaching format, practice and internship equipment, faculty troop, cooperation between colleges and enterprises etc. Finally, the result reveals that the current situation of urban rail transit in higher vocational education is not optimistic, and needs to be reformed.
On the Application of Multimedia Technology in ESP Teaching
Authors: Zhang Jin , Hu Bing
Published: December 2012

With the advance of computer multimedia technology and English teaching reform, the scope of computer multimedia application to education has become wider and wider. During the ESP teaching course, the teacher may stir students’ interests by means of multimedia technology, optimize the ESP course and improve teaching efficiency. The writer also points out the limitations and strategies we should pay attention to in the application of multi-media to ESP teaching in order to achieve an ideal teaching effect.
The Application of Web-Based Multimedia Technology in College ELT
Authors: Dong Ya Juan , Sun Qiu Yue , Wang Jing
Published: December 2012

In traditional way of ELT, the teacher was the center of all teaching activities. There have existed many disadvantages in the traditional ELT which is against quality-oriented education. The application of web-based multimedia teaching model changes the teacher-centered model; it puts importance on the cultivation of student’s independent spirit and helps students change from the passive listeners to the active participants, thus develops student’s ability of using English and their learning autonomy. However, research discovers that about 30% of students do not hold positive opinions towards the application of multimedia and nearly half teachers have trouble in making good use of multimedia. (The results are shown in Table 1 and Table 2) This paper explores the changes that multimedia has brought to ELT and the difficulties and problems in applying it, suggests that schools increase opportunities for teachers to receive multimedia training, thus better integrating multimedia technology into college ELT.
The Design and Implementation of iPad-Based M-Learning Platform - Taking the iOS Programming Design Course for Example
Authors: Lu Jian Hui , Pan Zhan Sheng
Published: December 2012

This articles take the iOS program design course as an example, briefly introduces the process to design and development this iPad- based mobile learning platform and the main function of it. This platform not only have the general video watching, resources sharing function, but also provides BBS, notes, resource download to meet the different needs of learner .
Distributed System Educational Reform and Graduate Cultivation of Innovative Ability
Authors: Li Bao An
Published: December 2012

In this paper, through distributed system graduate course teaching reform, explore the graduate students’ innovation ability training of the new mode and new methods. In teaching content, breaking the traditional course teaching according to fixed material or outline teaching model, through the technical project or technical report forms, and discussion with the students in common to distributed system related to the current hot technology and hot research direction. And then it combined the students' study direction or research subject with the course hot technologies to direct research work, so has received the better teaching effect. It explores a new approach which is useful to computer discipline and the graduate cultivation of innovative ability.
Experimental Study on Accuracy of GPS Positioning
Authors: Shi Hong , Qiao Dong Hai
Published: December 2012

Geophysical measurement relies on the positioning accuracy of GPS (global positioning system). Usually the positioning accuracy is area dependent. This paper uses a commercially available GPS receiver to verify its positioning accuracy with practical measurement in a small area. With a measurement setup in an open ground, the results show that even for the fixed point, the GPS measured positioning error of about 0.234 meter could be observed for a period of time. Of 12 GPS measured distance errors, only one is about 5.7 meters, all others are within the range of 3-5 meters of GPS receiver specification.
Exploration and Practice of Task-Driven Teaching Method Approach to the Electrician Machine Practice
Authors: Liu Chun Fang , Sun Yi Biao , Wang Li Mei
Published: December 2012

Electrician machine practice is an important engineering practice teaching element in the cultivation plan of undergraduate student of electricity. The task- driven teaching method is adopted in order to improve the quality of practice teaching, and to cultivate the ability of practice and creativity in the electrician machine practice. This paper discusses the mission design and implementation process which based on constructivist task-driven teaching method in the teaching of electrician machine practice, and points out several questions which should be noticed in the practice. The practice approves the application of task- driven teaching method in electrician machine practice can improve the teaching quality through excavating the student’s practice and creativity ability and cultivate the capability of independent thinking ,exploration and reclamation more effectively.
Research on Teaching Reform of Computer Basic Course for Information Management Major
Authors: Jin Ying , Ye Chao Liu
Published: December 2012

Computer science and technology is playing more and more important role in information management major, and the computer basic course is an important foundation course. In order to improve the teaching quality for teachers and develop the computer literacy for students, this paper analyzes the teaching reform and the application of computer basic course for information management major. Combining the mode of modular teaching and classified teaching mode, the effects of the mode of "one reforming and three combining" in the teaching are elaborated.
A Case Study for High-Level Course Website Based on Muti-Technology Integration
Authors: Qiu Yan , Zhu Quan Yin
Published: December 2012

In order to improve the communication between teachers and students and make the high-level course’s form intelligent, ThinkPHP, HTTP, SMTP, OpenCV, POP3 and SMTP were integrated to enhance high-level course performance. Micro-channel and Micro logging were used for the communication of the students and teachers. Furthermore, RFID device and camera were used as tools of checking on attendance and examination. The proposed system achieves the multiple technology integrated application which can also improving intelligence and the manage efficiency for high-level course.
Study on the Establishment and Implementation of Management Standards for Public Information System
Authors: Mou Yue
Published: December 2012

The standardization of the management of public information system is an essential step to the establishment of National Standard. By applying the comprehensive standard method in nationwide, the managers can regulate management functions, coordinate and develop the technical level of the information industry and economic union. The international standard of quality management can further assist meeting the customer needs globally, and achieving the best benefits of the standardization of public information system management.
Improved Methods for Intelligent Learning Environment Architecture: A Case Study of Technological Frame
Authors: Tien S. W. , Ma Yun Tien , Hsieh Pei Yu , Yen Ying Lu
Published: December 2012

The higher education of Taiwan in the last decade has experienced the new wave of rapidly developing intelligent learning environment for providing all users of educational and learning purposes. This study observes that the developed environment provided by intelligent learning technologies brings about the superior functionality and efficiency of message transformation. However, through an observation on H University during the 1996-2012 years, the adoption of intelligent learning environment can not satisfy users’ needs regarding environment architecture. Brown (1998) adopts the technology viewpoint to learning participation; otherwise it would reduce learning efforts and exhaust mental power. In addition, Russell (1999) proposes that the use of too much information technology would not improve learning effectiveness since educational field’s perception and behavior do not always meet the needs of users. This study finds that Orlikowski and Gash (1994)’s technological frame will be different due to various purposes of application of leaders and pioneers. Technological frame is a human made product of society. Therefore, this study suggests that technological frame can be used as the analysis tool for intelligent learning environment architecture. The propositions are three proposed, the main aim is to seek improved methods for the existing intelligent learning environment using case study methodology. The focus groups are utilized as research samples to establish the intelligent learning environment framework. By using the card sorting to establish intelligent learning environmental framework, the study attempts to explore the gap between intelligent learning environmental framework and user needs. Based on the theory of technological frame by Orlikowski and Gash (1994) to analyze the frame, this study proposes the recommendations as advanced references for improving intelligent learning environment framework.
SLF Electromagnetic Fields in Stratified Media
Authors: Chen Zhi Yi , Zhou Sui Hua
Published: December 2012

SLF waves travel in the air as vertical polarized vaves while as horizonal polarized vaves in the seawater,which have less attenuation than VLF waves. It propagates as lateral electromagnetic wave from seawater into air,whose energy will be concentrated on the interface. Comparisons of electromagnetic fields generated by vertical electric dipole in the air and horizonal electric dipole in the sea have been done.The results indicate that: (a) unit vertical electric dipole in the air is better than unit horizonal electric dipole in the sea. (b)when the receiver is below the boundary,the sources in the air provide stronger E field intensity than the sources in the sea do. (c)in the near field(1000km), underwater transmitting is hard to be achieved.
Rapid Droplet-to-Droplet Microextraction on a Piezoelectric Substrate
Authors: Zha Yan , Fu Xiang Ting , Zhang An Liang
Published: December 2012

A rapid droplet-to-droplet microextraction method on a piezoelectric substrate was presented. A pair of interdigital transducers (IDTs) with 27.5MHz center frequency was fabricated on a 128° yx-LiNbO3 substrate using microelectric technology. A RF signal generated by a signal generator was applied to one of the IDTs to excite surface acoustic wave. When hit a droplet on the piezoelectric substrate, surface acoustic wave was radiated into the droplet and acoustic streaming was occurred. Droplet-to-droplet microextraction was enhanced due to the acoustic streaming. An ionic liquid and an organic dye solution were used for extraction experiments. Results show that the extraction time is decreased with RF signal power. In addition, extraction kinetics was also studied using an image-based concentration measurement technique.
Analysis and Design of Auto Enterprise R&D Knowledge System Constructed by Knowledge Map
Authors: Qiu Guo Hua , Shao Lu Ning , Ji Li
Published: December 2012

The low level of knowledge management about research and development is greatly restricting China’s auto companies research and development ability. To solve this problem, the paper analyzes the actual demand of car research activities and constructs the enterprise research and development knowledge system in which knowledge map tool is the core, aiming at improving enterprise knowledge management level and car research and development ability.
Analysis on Stability of the Cooperation of Industry-University-Research
Authors: Li Xian'e , Kang Ya Qiong
Published: December 2012

The cooperation of I-U-R (Industry-University-Research) is a way that our country builds a market-oriented innovation system. Now, the base statement of China Industry-Education-Research is well, but there still has lots of influencing factor, such as power, the distribution of benefits, investment and financing, risk, policy and many other issues. The distribution of benefits is the most important problem which restricts Industry-Education-Research development. This article attempts to construct long-term stability of Cooperative mechanism in order to promote research cooperation, technological innovation and co-ordinate regional resource.
Simulation and Analysis of Linear Multiple User Detection Based on Simulink
Authors: Liang Sheng , Xie Yong , Pan Gao Feng , Xue Jun , Yu Xin Feng
Published: December 2012

In order to study the feasibility of linear Multiple User Detection (MUD) used in multi-objective spread spectrum TT&C, mathematical models of Decorrelation Algorithm (DEC) and Minimum Mean Square Error Algorithm (MMSE) are built. Simulation framework based on Simulink is given. Two algorithms are compared with traditional single user detector. The results of simulation show the two linear MUDs are better than traditional single user detection.
An Analysis of Temporal Diffraction of a Chirped Femtosecond Laser Pulse by a Circle Aperture
Authors: Wang Huai Sheng
Published: December 2012

An equation is put forward to calculate the temporal diffraction intensity distribution of a chirped femtosecond laser pulse when it incites a circle aperture. In the aperture central direction an analytic expression is given to calculate the temporal intensity distribution. Many factors such as the width of the laser pulse, the radius of the circle aperture, the Fresnel number at central frequency, time and the chirped coefficient of the laser pulse affect the temporal intensity. Number calculation shows that if the width of laser pulse is within a few tens of femtoseconds and Fresnel number at central frequency is much than twenty, the temporal diffraction intensity outline is not a Gaussian curve. While when the Fresnel number is less than ten and the chirped coefficient is small, the temporal intensity is an approximate Gaussian curve. If the chirped coefficient is large, the temporal intensity is not Gaussian distribution.
Defect Reconstruction in Laminated Composites by Ultrasonic Imaging
Authors: Ng S.C. , Ismail Napsiah Binti , Ali Aidy , Sahari Barkawi
Published: December 2012

Ultrasonic method for the investigation of multi-layered laminates such as glass fiber reinforced plastics (GFRP) has been a challenging task in industry due to their inherent nature as a combination of constituents and the respective fabrication process. The coarse-grain structure of the material, fiber orientation and stacking sequence of laminated composites generate undesirable echoes for the ultrasonic signals during the testing. These echoes distributed randomly in time affects the measurements of ultrasonic parameters. In this paper, the utilization of attenuation and time-of-flight (TOF) of ultrasound signals to reconstruct the internal structure of GFRP subsurface region were investigated. Comparisons of these two methods were conducted on two sets of GFRP with different structure condition. Analysis of C-scan images constructed by amplitude and TOF were conducted in a two dimensional region map of the scanning profile. Experimental results showed that attenuation of amplitude gave a better indication of damage and successfully improved the defect region detection in multi-layered reinforced composite materials.
Eliminating Linear Positioning Bias with Polynomial Approximation in AGPS Method
Authors: Li Ji Zhong , Li Yan Zhao
Published: December 2012

An AGPS (assisted global positioning system) positioning method was researched with polynomial approximation in this paper. Linear positioning errors were found through the analysis of an AGPS positioning algorithm with mobile station (MS) clock error. These errors were engendered to induce a bias of reference moment. The value of an objective function can be quadratically related to the deviation of reference time. Thus, the objective function curve was fitted with three reference time values, and the lowest point of curve to amend the reference time is determined. This method can eliminate linear positioning error.
Research and Design of the Remote Monitoring System for Power Quality in Wind Farms
Authors: He Qun , Jiang Guo Qian , Yu Zi Kou , Xie Ping
Published: December 2012

Rapid development of wind power generation and increasing growth of installed capacity of wind turbines make it necessary to study the power quality in wind farms. To monitoring the power quality in wind farms automatically and in real time, this paper presents a remote monitoring system for power quality based on LabVIEW software and Internet technology. The remote panel technology in LabVIEW and the Browser/Client (B/S) mode are adopted. This system mainly consists of monitoring hardware devices, the server, LabVIEW application software and remote clients. In the system, the remote clients in monitoring center workstations can monitor in real time power quality parameters of each wind turbine in wind farms through the VI control panel in the Internet browser. Thus it enables to improve automation level of wind farms and reduce operation and maintenance cost. The feasibility and coordination of the developed system are validated by experimental simulating results in the laboratory environment.
Ball Mill Load State Recognition Based on Kernel PCA and Probabilistic PLS-ELM
Authors: Zhao Li Jie , Yuan De Cheng , Tang Jian
Published: December 2012

Operating condition recognition of ball mill load is important to improve product quality, decrease energy consumption and ensure the safety of grinding process. A probabilistic one-against-one (OAO) multi-classification method using partial least square-based extreme learning machine algorithm (PLS-ELM) is proposed to identify the operating state of ball mill. The feature of shell vibration spectrum is extracted using KPCA. PLS-ELM model is applied to enhance the reliability and accuracy of the operating conditions identification of the ball mill load. Posterior probability of each class using Bayesian decision theory is defined as a measure as classification reliability. Classification results of the experimental ball mill shown that the accuracy and stability of the proposed method outperform ELM, PLS-ELM and KPCA-ELM model.