bluuebunny/crossref_metadata_2025 huggingface dataset:
Randon and Ridgelet Transformation Applicaton in Image Digital Watermark
Authors: Li Ying Jiang , Li Ying Fang
Published: September 2013

Propose a digital watermark algorithm that can be resisted geometric attack, in order to enhance the capacity to resist attacks such as rotation, use the 0° angle Randon transformation as the reference vector, estimate and correct the rotation transformation of the carrier image, recover the watermark synchronization. when watermark is embedded, perform wavelet transform on original image and blocked the LF sub-band, perform the Ridgelet transformation on each block; change two-value watermark to one-dimension, embedded the watermark bit into the Maximum energy direction of Ridgelet. The simulation results show that the algorithm can effective resist various attacks such as noise, filtering, compression, rotation, shearing and scaling etc, and the ability of resist various attacks is robust.
Design and Implementation of Management Information System Based on SSH Architecture for Departments of Colleges and Universities
Authors: Zhang Hong , Li Hua Bing , Liu Huan Jie
Published: September 2013

This thesis adopts B/S-based three layers of structural model, takes JSP technology as Web development platform, database MySQL as the basis. The modular design of using lightweight J2EE framework Struts+Spring+Hibernate for solution is adopted to achieve Management Information System for Departments of Colleges and Universities. The system solves the problem of manual teaching information management, heavy workload, low efficiency, poor security and so on, so as to improve the efficiency and level of management.
The Research on Hand Gestures Segmentation Based on Skin Color Detection Combination with Dynamic Threshold
Authors: Wang Yi Ting , Shao Feng Jing
Published: September 2013

Aiming at the shortcomings of hand gestures segmentation based on fixed threshold and the problem of the interference of background color, this paper proposes a research on hand gestures segmentation based on skin color detection. The captured image is translated to YCgCr color space from RGB color space, and then skin color segmentation is done by using dynamic threshold method, so the hand gestures segmentation is completed. Finally segmentation results are verified by experiments and the method is summarized.
Building Mobile News Aggregation Application with Yahoo Pipes
Authors: Wang Hai Bo , Wang Zhao Hua
Published: September 2013

With the development of Mobile Internet, more and more people read news through Native App on their mobile equipment. The shortage of Native App news client is that it cant assemble news from different sources. This paper presented mobile application named TopNews, which is built based on Yahoo Pipes. It combines top news from several popular news websites. Building with HTML5 and jQuery mobile, it is no longer necessary for user to install any Native App in order to read news.
Architecture and Key Technologies of Cloud Computing
Authors: Xiao Li Yuan , Wang Zheng , Wang Rui , Wang Hai Ning
Published: September 2013

The Internet has changed the computing world in a drastic way from the advent of the Internet in 1990. The concepts of distributed computing, parallel computing, grid computing and cloud computing have been proposed successively. Although cloud computing is generally recognized as a technology which will has a significant impact on IT in the future. But cloud computing is still in its infancy. In this paper we will discuss the architecture and the key technologies of the cloud computing.
Load Balancing Algorithm Research for Virtual Machine Resources in Cloud Environment
Authors: Fang Yi Qiu , Zheng Jian , Ge Jun Wei
Published: September 2013

A non-uniform distribution of virtual machine resources in the cloud environment,in order to solve the Virtual Machine (VM) resources in the use of a large number of idle or bottleneck problem,this paper analyzes several load balancing algorithm,and presents a non-hashs dynamic feedback load balancing algorithm.Experimental results show that the algorithm can achieve good load balancing effect.
Analysis and Research of Modulation Recognition Algorithm in Satellite Communications
Authors: Bin Ren , Ping Zhu , Ying Cheng , Lei Song
Published: September 2013

Automatic identification of the communication signal modulation mode is a hot topic of research in the signal processing field in recent years. It is an important part of electronic countermeasures, and also a rapidly developed field of signal analysis. Communication signal modulation recognition is widely used in signal confirmation, interference identification, radio listening, signal monitoring, as well as software-defined radio, satellite communications and other fields. This paper proposed a digital modulation signal automatic recognition algorithm for satellite communication applications,. The algorithm uses the higher order cumulants of modulating signal, combined with constellation map features, to classify the signal. It has invariance in signal amplitude and phase deviation, and inhibits the additive Gaussian noise at the same time. Compared with other identification algorithms, it has the characteristics of stability and wide application. Computer simulations show that, under the given data length and moderate SNR conditions, a higher recognition rate (> 95%) can be obtained.
The Application of WiFi Technology in IPTV STB
Authors: Zeng Hao , Ren Peng , Yang Zhi Liang
Published: September 2013

According to the importance and the development status of IPTV STB(set-top boxes) , illustrates that IPTV with WiFi has an unparalleled advantage. The paper describes of WiFi technology and IPTV STB architecture in detail. Focus on the network from the IPTV STB connection mode, and one kind of WiFi wireless connection implementations is given. Finally, look ahead the development and application prospects of IPTV STB with WIFI wireless connectivity.
Discrimination of the Lettuce Leaf Nitrogen Level Based on the BP Neural Network and the Spectral Information
Authors: Sun Jun , Jin Xia Ming , Dai Ze Gao , Zhang Mei Xia , Shen Xin Chen , Lv Wen Xia
Published: September 2013

According to the problem that the intelligence is not high of the soccer robot, using the mechanical theory as a guide, making some mechanical analyses and calculations on the pressure and transmutation states of chip kick mechanics, and conducting optimal design too, then making the structure of chip kick mechanics more and more rationalization. Experiments show that the new soccer robot controller features a quick response and high servo rigidity, and provide a kind of method for improving and perfecting the soccer robot control system, at the same time, filling the needs of producing.
MARM: Mobile Augmented Reality Map Based on Wireless GIS
Authors: Kai Lei , Rui Ning , Wang Wen Min , Ma Qiang
Published: September 2013

This paper presents the design and development of a Mobile Augmented Reality Map (MARM) which shows map information on the real world video rather than a plane. The proposed system uses wireless Geographic Information System (GIS), and video camera and gyroscope of a smart phone. MARM has the advantage of GIS and the convenience of mobile phones, and is an extremely intuitive way to use map.
The Building of User Model of Personalized Learning Teaching System Based on Data Mining
Authors: Rui Wen Yan , Mi Hai Ying
Published: September 2013

This paper analyzes the structure of the whole system, namely, how different users according to their own characteristics of its initiative to provide users with relevant information and content and to establish individual user model, based on user behavior to build personalized user model.
An 8-bit 5-Gsample/s Time-Interleaved Analog-to-Digital Converter Used for Optical Communication
Authors: Gao Yu Han , Wang Yong Lu , Chen Guang Bin , Zhang Zheng Ping , Zhu Can , Zhang Lei , Ye Rong Ke , Hu Rong Bin
Published: September 2013

In this paper, we present an 8-bit 5 Gsample/s time-interleaved analog-to-digital converter (TI ADC). A 4-phase low jitter clock is designed to control four 1.25 Gsample/s sub-ADCs which is implemented using folding and interpolating architecture. Digital calibration is used to adjust the offset error and gain error of sub-ADCs. Meanwhile, serial peripheral interface (SPI) is adopted to adjust mismatch of gain and sample time between sub-ADCs. The whole TI ADC is designed using a 0.18m SiGe BiCMOS process. The whole ADC has a SNR of about 45 dB at the input frequency of 495 MHZ and an equivalent ENOB of 7.2 bits.
Concrete Shrinkage and Creep Effect Prediction Model and the Influence Factors Analysis
Authors: Duan Rui Fang , Huang Xiu Fen , Zhang He
Published: September 2013

It is a complex problem that forecast and control the shrinkage and creep of concrete and influence on the performance of the structures.Through the conmparion of all kinds of common model,the article have also analysed the main influence factors about the concrete shrinkage and creep effect . The results showed that JTJ 85 model for shrinkage and creep effect tends to conservative calculation; the creep coefficient and shrinkage strain of JTG D62 model and the CEB-FIP model were basically consistent; and ACI 209 model underestimated the concrete shrinkage and creep effect. Theoretical depth of components was more sensitive to concrete shrinkage strain, and creep coefficient was smaller sensitivity; The effect of concrete creep increases with the decreasing of age at loading, when age of loading percentage increased from three to 28 days, the concrete creep effect of the terminal value reduced about 80%; The influence of environment average relative humidity on shrinkage and creep effect is more sensitive, when environment average relative humidity increased from 50% to 80%, creep coefficient nearly reduced about 30%,and shrinkage strain decreased 50%, in comparison, the influence of environment relative humidity chance on the concrete shrinkage effect is greater than that on creep effect.
Research on Recompilation and Rebuilding of Batch Execution Plain SQL Server 2012
Authors: Li Ai Wu
Published: September 2013

SQL Server supported execution of multiple SQL statements at a time, these statements as a whole is called a batch. The features of batch execution plan is different from that of single statement execution plan. This paper discussed the recompilation and the rebuilding of batch execution plan. By detailed experiments, it shown the differences between plan recompilation and rebuilding and the main events resulting in the plan recompilation and rebuilding.
Identification of Pesticide Residues of Lettuce Leaves Based on LVQ Neural Network
Authors: Sun Jun , Dong Liang , Jin Xia Ming , Fang Min , Zhang Mei Xia , Lv Wen Xia
Published: September 2013

In order to ensure the healthy safety of edible lettuce, an identification way of pesticide residues of lettuce leaves is studied. Soilless cultivation of lettuce sample was adopted. At tillering stage, various levels of fenvalerate were sprayed to different groups of lettuce, lettuce leaves accompanied by a collection of pesticide residues and lettuce leaves not sprayed pesticide residues were collected, Hyperspectral Information of each blade leaf were collected and lettuce leaves sample spectral library was set up. Randomly 90 samples were selected as training samples, and the classification models based on BP neural network and LVQ neural network were set up. The remaining samples were taken to forecast classification test. Results showed that, the prediction identification correct rate of LVQ neural network model is 98.3607%. The algorithm is suitable for pesticide residues diagnosis of lettuce leaves.
Design and Development of the Virtual Acupuncture Training Using WebGL
Authors: Huang You Liang , Zhou Ming Quan
Published: September 2013

Over the last years, with the rapid development of 3D Web technologies, such as Web3D, HTML5 and WebGL, have allowed complex 3D scenes to be rendered interactively, within a web browser. Compared to the traditional virtual training system, the traing system with WebGL, which requires no explicit installation plug-in and is able to achieve cross-platform easily, is getting more and more popular. This foundation has made it possible to build powerful the virtual acupuncture training system. However, designing and implementing a complete virtual training system using WebGL is not straightforward and complex. In this paper, the author presents a virtual acupuncture training system that using WebGL and Three.js 3D Engine. It can be used to learn acupuncture, and also give ordinary people a reference. Our experiment result shows that WebGL and Three.js 3D Engine can easily support the virtual acupuncture training system, and have a good response. By using this system, the trainers can be more familiar with the acupoint of the human body. At the same time, the trainer will improve his ability in acupuncture therapy. We also hope to provide some references for the development of the virtual training system.
A Syntactic, Semantic and Cognitive Analysis of Existential Sentence Oriented to Language Information Processing - Taking "V-Construction" as an Example
Authors: Xiong Wei Du
Published: September 2013

Textual language information processing is the computer processing on the form and meaning of natural information. At present, the researches mainly focus on some special fields, such as word segmentation and part-of-speech tagging, etc. But until now, the achievements can hardly meet the needs of the computer automatic understanding on natural language. From this point, we should process the language meaning to achieve the deep knowledge acquisition and inference of the language information processing with the help of detailed analysis of sentence semantic structure and cognitive system based on the corpus. Basing on the existential sentence but not strictly clinging to the special existential sentence, that is, taking the view of general existential sentence, this paper extends its objects to the dynamic sentence, which denotes the existence, appearance or disappearance of something in some place. But taking the length into consideration, this paper merely emphasizes on the general existential sentence of V-Construction, whose common types are something in some places V or something V in some place, analyses not only its syntax and semantics, but also the reasons of the V-Construction from the cognitive perspective, and provides the resources for the computer to handle the semantic knowledge offered by Chinese. Through the quantitative statistics and qualitative inorganic analysis, the correlativity between dynamic and static existential sentence of V-Construction can be obtained, meanwhile, the sentence system of V-Construction can also be constructed.
On the Implementation of Cross-Layer Structure for the Interactive Teaching in Information System Course
Authors: Li Zhen , Li Yan
Published: September 2013

with regards the interactive teaching as a complete system, the paper tends to investigate the application of the hierarchical and interactive teaching mode for the management information system course under the multimedia environment from two aspects-interpersonal interaction and knowledge interaction between individuals.
The Design & Application of Instrument Circulation System Based on WIFI and QR Code
Authors: He Hui Yu , Luo Yi Guang , Liu Xiao Ping
Published: September 2013

Based on the deep analysis of the instrument circulation of measurement technology institutions, using WIFI and QR Code technology, we have developed a set of measurement instrument circulation information system so as to solve problems such as low measurement instrument circulation efficiency and repeated work. This system has been successfully applied to the daily work of the Second Testing Base of Guangdong Institute of Metrology.
Model-Based Design of UAV Autopilot Software
Authors: Zuo Ming , Liu Ying , Qian Yi , Hu Xiong Wen , Zhao Xiao Chuan , Wang Jin Hua
Published: September 2013

This paper presents a Model-Based approach to develop UAV (Unmanned Aerial Vehicle) autopilot software. It employs Simulink to design the flight controller, Stateflow to implement control logic and Matlab coder to automatically generate embedded C code from the model developed. Software in the loop (SIL) and hardware in the loop (HIL) simulations are performed in the laboratory to validate the software developed. Flight trial cost and risks are minimized and the design cycles are greatly shortened. The feasibility and the effectiveness of the approach are verified through results from lab simulations and field trials.
A Method of E-Service Workflow Composition Based on Linear Logic Inference Rules
Authors: Zhou Shan , Zhang Fang Yu
Published: September 2013

The paper proposes a method for semantic message matching in automatic service composition. It develops a framework in which the exported message description and behavior description of a service, and represents the behavior of a service with a finite state machine. Since the service interface definition can be represented by ontology concepts, the internal representation language enables us to define some issues required by service composition formally, qualitative and quantitative constraints plus reasoning on concepts, and the service behavior can be represented using linear logic formulas, so the inference rules of linear logic can check the match-ability and satisfy-ability of service message.
CQI Prediction for Shadow Fading in LTE-Compatible GEO Mobile Satellite Communications System
Authors: Zheng Ya Dan , Dong Ming Ke , Jin Ye , Wu Jian Jun
Published: September 2013

CQI(Channel Quality Indicator) is an essential indicator for AMC(Adaptive Modulation and Coding) technique in LTE. Due to the long delay of GEO satellite channel, CQI prediction is necessary to ensure effective AMC in LTE-compatible GEO mobile satellite communications system. The complete procedure and problem encountered when doing AMC in satellite system are introduced and the difficulties of prediction are analyzed. In order to obtain meaningful and feasible CQI prediction results, a complete prediction scheme is proposed. By using approximate CQI data which is smoothed and with only shadow fading influence, various prediction models are compared. Taking both computation complexity and prediction performance into account, two models, ARIMA (Autoregressive Integrated Moving Average) and Kalman filter are chosen to be applied in this scheme. Simulation results show that the prediction performance is very well with the proposed method, which can surely guarantee AMC performance.
ES-TMP: Inter-Domain Egress Selection Based on Traffic Migration Prediction
Authors: Zhao Dan , Hu Xiao Feng , Wu Chun Qing
Published: September 2013

Hot-potato routing is commonly used to break tie among multiple equally-good exit points associating with inter-domain BGP routes. However, hot-potato routing only takes the network control plane into consideration, where it provides the routers the possibility of enabling early exit of traffic using barely protocol-related information of IGP distance. In this paper, we argue that egress selection of inter-domain routing should pay more attention to traffic forwarding, because the large traffic migration caused by egress change, although not quite often, can degrade the network performance or even make the network crash. We propose Egress Selection based on Traffic Migration Prediction (ES-TMP). We use traffic demand to predict the traffic migration, which is used as important criteria for egress selection. If the volume of traffic migration is large, ES-TMP keeps the egress unchanged. Otherwise, the small traffic migration enables the routers use the closest egress without apparent influence on network performance. ES-TMP can either be implemented with standard BGP protocol or by dedicated servers to perform global routing optimization.
Non-Uniform Cluster-Based Mobile Data Collector Routing Protocol in Wireless Sensor Networks
Authors: Zhou Xin Lian , Chen Sheng
Published: September 2013

One fundamental task of wireless sensor networks (WSNs) is to save sensor power, and try to prolong the lifetime of WSNs. Traditional routing protocols are almost based on homogeneous WSNs, all sensors are use single hop or multi-hop to transmit data to base station, which lead to overload sensors next to base station, thus appear energy hole and made WSN outwork. In this paper, we use a new novel mobile collectors mobile strategy method to prolong network lifetime, and reduce hot-spot effect around base station. We propose the routing method can effectively balance the network sensors energy depletion, more save energy and longer whole network lifetime compare to LEACH.
Dynamic Evolution of Requirement Goal Deployed on Network Environment
Authors: Liu Yang , Wu Jin Zhao
Published: September 2013

Under the network environment, it inevitably exists inconsistency and dynamic information in users requirements because of the complicated and volatile network, update, restructuring and so on. This paper studies how to handle the inconsistent information and keep correctness of the requirement goals from the users. It also provides relevant rules of model evolution under dynamic environment. With maximal consistent set, the inconsistent information can be reserved to keep the indeterminacy in the early stage and expand the function of the software. It is helpful for the next step of the software development.
An Efficient Routing Algorithm for Opportunistic Networks Based on Network Coding
Authors: Yao Yu Kun , Liu Zhi Hu , Ren Zhi , Wen Ya Di
Published: September 2013

To address the problems in Opportunistic Networks that nodes employing routing algorithms based on epidemic mechanism cant sense their neighboring nodes timely and many redundant data packets permeate through the network, an efficient routing algorithm based on XOR network coding was proposed (Xor Network Coding based Epidemic Routing, XNCER). When a node gets a Hello message, it broadcasts, instead of unicasting, a SV(Summary Vector) packet, in return, to all its neighboring nodes. Therefore, the data transmission can be initiated immediately, and the XOR network coding can also be leveraged so as to enhance the efficiency of data transmission. Moreover, the packets destined to the one hop neighboring nodes obtain the priority in transmission, and are determined whether to be deleted based on the ACK mechanism running in the MAC layer in order to cut down the memory overhead and restrain redundant packets from dissemination. Theoretical analysis and extensive simulation results show that the new algorithm obtains an overall improvement in terms of network overhead, average end-to-end delay as well as delivery rate. The novel algorithm can effectively solve the problems of sensing neighboring nodes and data redundancy.
Correlation Trust Authentication Model for Peer-to-Peer Networks
Authors: Cheng Wei , Tan Zhen Hua
Published: September 2013

A requester node requesting a service in a peer to peer network transmits a request to a service provider node. The request may include a communication history of the requester node identifying other nodes with which the requester node has previously communicated. The service provider node authenticates the requester node based on the communication history. The service provider node may ask other nodes with which the requester node has communicated for evaluation of the requester node. The other nodes may calculate a trust metric of the requester node and provide this metric to the service provider node. The service provider node may use this trust metric in combination with a similarity calculation of the requester node and the service provider node to make a determination whether the requester node is to be authenticated. The service provider node may evaluate the requester node and store the evaluation in its communication history.
Model Comparison and Data Interface Program Development between BPA and PSS/E
Authors: Li Peng , Tian Peng , Liu He Zhi , Wei Xu
Published: September 2013

Write a data interface program transforming data between BPA and PSS/E by VC and realize bidirectional transform of power flow data and transition from BPA to PSS/E of stable data. Illuminate the corresponding relationship between these two programs of both power flow and stable data and compare differences and resemblances between them. Emphasize the difference in dealing with excitation and governor model; explain the essential points during transform and measurements of managing discrepant model. Validate the effectiveness of this program by simulation.
Research of Assisted Testing Method Based on Software Testability and Pattern
Authors: Xie Feng , Wang Yi Chen
Published: September 2013

Pattern is a highly sophisticated solution. The purpose of combining pattern and software testability together is to propose the assisted testing methoda pattern methodto solve the repeated software problems which are not defects but always appear during testing, the method involves many patterns. The ways to obtain the method are researching many testing processes, then analyze and summarize. The method could overcome shortcomings of other testability design and measurement methods. Using steps of the method is illustrated in this paper. Simple and rapid are the advantages of the operation process of the method which could be proved in the case study; whats more, it solved the problems that related to the pattern effectively. It can greatly assist with testing process and improve software testability. Its a practical and effective method.
Comparing Plume-Tracing Algorithms in Obstructed Multi-Source Environments
Authors: Zhang Yu Li , Ma Xiao Ping
Published: September 2013

In this paper, we compare the common plume-tracing algorithms: chemotaxis and anemotaxis in obstructed multi-source environment using multi-robot system. A multi-robot cooperation strategy with virtual physics force, which includes structure formation force, goal force, obstacle avoidance force, repulsion force and rotary force, is proposed. First, plume model with two sources in three obstacles environment is constructed by computation fluid dynamics simulations. Second, parallel searches by two groups robots with chemotaxis and anemotaxis are used to locate two sources in obstructed environment. Simulation comparison experiment with two plume-tracing algorithms discussed the influence of the varied wind direction/ speed frequency and methane release frequency and different initial positions of two groups to the search performance. Finally, the comparative result is illustrated.
Global Synchronization of Moving Agent Networks with Time-Varying Topological Structure
Authors: Wang Li Fu , Kong Zhi , Wang Xin Gang
Published: September 2013

The synchronization of moving agent networks with linear coupling in a two dimensional space is investigated. Base on the Lyapunov stability theory, a criterion for the synchronization is achieved via designed decentralized controllers. And, an example of typical moving agent network, having the Rössler system at each node, has been used to demonstrate and verify the design proposed. And, the numerical simulation results show the effectiveness of proposed synchronization approaches.
The Algebraic Semantics of EPDL at Activity Level and Verification
Authors: Liu Jin Zhuo , Wang Li Xia , Li Tong , Yu Qian , Zhao Na , Hang Fei Lu
Published: September 2013

In recent years, algebraic semantics and its verification are increasingly important in software engineering. In this paper, firstly, the algebraic semantics of software evolution process description language (AS-EPDL) at activity level is explored. The algebraic semantics of activity level in EPDL provide an accurate framework for defining the semantics. In addition, the hierarchy-consistency and sufficient-completeness properties of the AS-EPDL at activity level are verified.
Algebraic Semantics-Based Verification for EPDL at Task Level
Authors: Liu Jin Zhuo , Wang Li Xia , Wang Wei , Zhang Xuan , Qian Ye , Zhu Rui
Published: September 2013

The algebraic semantics has been applied to describe and verify semantics for a long period of time. In this paper, the algebraic semantics of EPDL of task level is studied. The paper is divided into two parts. In the first part, the initial algebraic semantics of EPDL (AS-EPDL) of task level is given. As a consequence of the practical purpose, we give the expansion type, which can help the modularization of programming. However, there are two key problems we should concern about when the expansion type is built - hierarchy-consistency and sufficient-completeness. Therefore, we give the verification of these two properties in the second part of the paper.
Distributed Rateless Codes Based on Random Matrices
Authors: Xiao Yi Long , Jiang Hai Bo
Published: September 2013

When multiple source node nodes need to transmit their data packets through a single relay to a common destination, distributed rateless codes can be employed. In this paper, a new kind of completely random rateless codes and its distributed encoding process is proposed based on random matrices theory. The proposed method is very easy to implement. The decoding performance is determined by the rank property of random matrices. Both theoretical analysis and simulation results show that the proposed method is effective.
Self-Adapting Acquisition of Sensor Data in Mobile Environment
Authors: Wang Chao , Zhang Chun Hong , Yang Ji
Published: September 2013

A mobile application meets the highly real-time requirement for data in sensor networks. However mobile applications have to handle many difficulties that do not exist in non-mobile environment. For example, the wireless network provided for mobile is slow, expensive and bandwidth-limited. So mobile application cannot acquire sensor data like a common application does, which will consume a large share of bandwidth, CPU and memory. To address this issue, we propose our design that will limit the concurrently acquisition of the sensor data with a self-adapting mechanism. It can lower the overhead of the system significantly and whats more, it hardly reduces the user experience even in the situation that the total acquisition frequency is limited.
Branch Unit for Seafloor Observatory Network
Authors: Feng Ying Bin , Li Zhi Gang , Wang Xiao Hui
Published: September 2013

One key issue of seafloor observatory network is to ensure that the whole system operates normally when some equipment failure exists. Branch Unit can cut off the connection between the failure parts and the backbone network automatically and protect other equipment of the network from the impact of equipment failure. This paper proposes a design of the Branch Unit. The Branch Unit uses zener diode to provide power for the control circuits and constructs DWDM system with the help of the OADM. One Branch Unit model was built in this paper. Experiments verify the principle and functions of the Branch Unit and prove the feasibility of the design. The design provides a reference for the realization of the seafloor observatory network.
Visual Simulation of Node Localization for WSN Based on Vega Prime
Authors: Wang Qing Hui , Chang Lei , Wang Wen Zhou , Li Jiao
Published: September 2013

Visual simulation can simulate a variety of situations of actual scene in real-time through the establishment of the virtual scene similar to a real scene. This paper studies on the node localization system for WSN (Wireless Sensor Network). In order to be able to observe the specific information of the node location for the wireless sensor network visually, we can construct scene model and texture process by Creator, then use Vega Prime to develop the visual simulation of node localization for wireless sensor network in the VS2005 platform, and demonstrate the node localization for wireless sensor network in real time and realistically.
Evaluating Network Security Based on Attack Graph
Authors: Gao Xiang , Xu Xue Qin , Wang Min
Published: September 2013

By now, Attack Graph (AG) is widely applied to the field of network security assessment. In the AG, each vertex has a value that implies the probability of the exploit and each edge represents the relationship between the exploits. In this paper we design an AG model and propose an approach which integrates the AG model with the Dynamic Bayesian Network (DBN). The approach not only strengthens the rationality of uncertain reasoning, but also provides a quantitative assessment of network security status. We evaluated the approach by experiment. The results showed that our model is rather accurate and the performance of it is competitive.
Design and Implementation of the Critical Functions in IETM System
Authors: Li Kai , Wang Yong , Liu Mei Lin , Wei Xue Zhong , Liu Xiang Xin , Li Lan
Published: September 2013

ETM system is a complex product information management system based on JSP and MySQL. It contains three subsystems: product management system, material management system and IETM making system. This paper first introduces the IETM system, then focuses on the key techniques involved in the management process including product information management, the association between a product and its sub-products, the product tree caused by a damaged product, the product tree used to find the cause of failure, the performance table management, the conversion technology from product information data to a S10000D document, the conversion technology from S1000D documents to a Word document and the word name repetitive judgment.
Intelligent Evaluation System of Animation Works Based on ELP
Authors: Zhao Jun Li
Published: September 2013

In digital media area, exchange and evaluation of the animation works has become a prominent problem. In this paper, we develop an intelligent evaluation system of animation works based on E-learning portfolio, which can record students animation works and learning files in digitized form. It achieves a combination of quantitative evaluation and qualitative evaluation using fuzzy comprehensive evaluation and artificial intelligence technology. It can not only generate the scores, but also generate remarks automatically. This will facilitate teachers and students to exchange and evaluate animation works, and improve the quality of evaluation.
System Reliability Evaluation Using Bayesian Networks
Authors: Liu Lin Ying , Sun Qin , Wang Yao
Published: September 2013

Bayesian network method for system reliability evaluation which is based on a Bayesian network that transformed from a fault tree has gotten much attention these years. After a brief introduction to the method how to transform a fault tree into a Bayesian network, the paper elaborates the Bayesian network inference algorithms. The paper focuses on the way how the inference algorithms can be applied to the practice of system reliability evaluation and designs a systematic flow chart used to evaluate system reliability in a Bayesian network way. The experiment demonstrates the feasibility of the systematic flow chart.
A Corpus-Based Study of Chunks in Applied Linguistics Research Articles
Authors: Xiao Geng Sheng , Cheng Bang Xiong
Published: September 2013

In recent years, increasing attention has been paid to disciplinary variation of chunk use, but so far little has been done on chunks in the field of applied linguistics. This paper aims to explore the structures and functions of 4-word chunks in 1, 032,497 word tokens corpus of applied linguistic research articles. The analysis reveals that applied linguists tend to use more prepositional phrases with of fragments and noun phrases with of fragments. Moreover, research-oriented chunks are the most prevalent, text-oriented the next, participant-oriented the fewest. Lastly, pedagogical suggestions are put forward that students awareness should be aroused of unique features of chunk use in applied linguistics in terms of structures and functions.
Reliability-Based Balanced Condition for Strengthened RC Beams
Authors: Li Chun Xia , Ding Zhi Sheng , Yan Shi Lin , Chen Jun Ming
Published: September 2013

Based on the experimental result of the flexure capability of reinforced concrete beams strengthened by carbon fiber sheets, the stress distribution changes only after steel yielding and carbon fiber sheets function better. However serious the extent of the damage is before strengthened, the tensile strain of main steel reaches about 1.6 times of the yield strain for the secondary grade of steel as failure happens. To satisfy the object reliability indicator, reliability is analyzed using the ratio of the steel strain at the balanced failure to the yield strain as variable to obtain its optimum value, which is coincide with the experimental result, and makes better consistency between calculated reliability indicator and object reliability indicator.
A Modeling Method for HVDC Control on RTDS Simulation
Authors: Zhang You Qiang , Xu Rui Lin , Zhong Jia Yong , Hou Xu , Qian Luo Jiang
Published: September 2013

Converter control model plays an essential function for HVDC system dynamic simulation in real time simulator (RTDS). RTDS can provide approach for detailed studies of options and predictions of the system performance. This paper first presents the basic principle of the power control, firing control and transformer tap control. Then the paper presents our modeling effort for these control models. The configuration of control models includes major sections of practical controls. The paper also makes final verification test of these sections with a typical power system model. The validity of proposal methods and designed simulation model is verified by tests and computed results. The built HVDC control model is competent for the RTDS simulation.
Multi-Dimensional Comprehensive Link Stability Model in Ad Hoc Network
Authors: Chang Guan Yu , Yang Hai Cheng , Yin Hui Hui
Published: September 2013

Routing Optimization is always a key issue in MANET (Mobile Ad-Hoc Network). When referring to multi-media communication, the routing stability, which is up to link stability, is in urgent need. On the analysis of kinds of factors that affect link stability greatly, a multi-dimensional comprehensive evaluation model (MVCLS) was presented based on factor classification. In the model, the weight levels were classified, a mechanism of weight rotation was available, and a normalized link stability evaluation system with multi-attribute and multi-weight was formed. In addition, aiming at reliability and robust of the model, time series analysis and Kalman filter were combined to smooth and predict the value of key factors. At last, the link stability model is used to optimize the OLSR routing protocol, which takes the link stability as the important stuff for path selection. Simulation experiments of modified OLSR were done with support of Qualnet, the results of which show that the network performance is improved and also prove the effectiveness of the link stability model.
Feasibility Analysis of the Confirmation of Self-Created Goodwill
Authors: Xie Jun Ping
Published: September 2013

As the basis of outsourcing goodwill, self-created goodwill has a great impact on goodwill accounting. With the development of knowledge economy, the proportion of self-created goodwill is increasing in enterprise assets. This article tries to state briefly the origin, the existing problems and the causes of these problems of self-created goodwill and conduct a feasibility analysis of the confirmation of self-created goodwill through a profound analysis of the composition of it. Thus we will find out the approach to the confirmation of self-created goodwill, providing some valuable inspiration in the accounting circle of our country while dealing with goodwill accounting.
Enlightenment from Australian Network Security Plan to Chinese Information Security
Authors: Cheng Jian Hui , Zhao Ran , Jin Cheng
Published: September 2013

With the development of information technology, the network information security is closely linked with national security. In order to resist the harmful information to safeguard national security, Australian government enforces network security plan. Its network of legal norms and such practices as real-name system, national information security have a certain degree of enlightenment to China.
Generalized Hamming Weights of Cyclic Codes from Algebraic Function Fields
Authors: Hu Wan Bao , Fang Xiao Hong
Published: September 2013

The generalized Hamming weights of a linear code are fundamental code parameters related to the minimal overlap structures of the subcodes. In this paper, some results are presented on the estimates of generalized Hamming weights of cyclic codes, which connect their corresponding trace codes.
Aspect-Oriented Programming and Modeling Based on UML
Authors: Chu Yan Hua , Yu Jin Ling
Published: September 2013

Traditional software development method will bring code tangling, code scattered and many other issues. Aspect-oriented programming came into being under this circumstance. AOP is a new programming paradigm which is independent of all the other programming languages. The scale and complexity of software systems increase continually. Efficiently control the complexity of software systems has already become a vitally important issue which needs to be addressed. In the modular design and implementation of software, cross cut always arise between primary functional modules and non-functional modules. This paper proposes a method to model and verify an UML activity diagram based aspect-oriented programming which enhance the capability of dealing with non-function requirements.
Community Evolution in Dynamic Social Networks
Authors: Wang Gang , Lei Yu Li , Wang Chong Jun , Qiao Shao Jie
Published: September 2013

This paper proposed a framework and an algorithm for identifying communities in dynamic social networks. In order to handle the drawbacks of traditional approaches for social network analysis, we utilize the community similarities and infrequent change of community members combined with community structure optimization to develop a Group-based social community identification model to analyze the change of social interaction network with multiple time steps. According to this model ,we introduced a greed-cut algorithm and depth-search-first approach and combine them to develop a new algorithm for dynamic social interaction network recognition (called ADSIN). In addition, we conduct experiments on the dataset of Southern Women, the experiment results validate the accuracy and effectiveness of ADSIN.
On the First-Order Markov Model for the PLC Fading Channel
Authors: Shen Wei
Published: September 2013

The power line communications (PLC) channel is noisy one, which can be modeled by the Markov process. The order is the key concerning when used the Markov process. the level of complexity will be incurred from using higher order , while the first-order Markov models may lead to the less accurate channel response. In the paper, the first-order Markov channel is under thoroughly discussion, and it can provide a mathematically tractable model for time-varying channels and uses only the received SNR of the symbol immediately preceding the current one. With the first-order Markov chain, given the information of the symbol immediately preceding the current one, any other previous symbol should be independent of the current one. We show that given the information corresponding to the previous symbol, the amount of uncertainty remaining in the current symbol should be negligible. That means the first-order of Markov process is enough when modeled the PLC channel.
A Novel Data Access Scheme in Cloud Computing
Authors: Gao Xiao Wei , Jiang Ze Min , Jiang Rui
Published: September 2013

Recently, Hota et al. present a Capability-based Cryptographic Data Access Control in Cloud Computing. This scheme implements data storage, user authorization, data access and integrity checking. However, we find two fatal attacks in the data exchange between CSP and User. These attacks makes a registered user can intercept another legal users file and decipher it. To avoid these attacks, we give an improvement to Hota et als scheme and can resist theses attacks. Meantime, to make Hotas scheme be applicable, we propose a novel data access protocol in cloud computing. Our scheme guarantees data confidentiality and secure data access between User and CSP. Security analysis shows that the scheme can resist various attacks.
A New Method of Chaotic Detection for Weak Sinusoidal Signal Frequency
Authors: Zeng Fang Ling , Hu Yan Yan , Geng Xiao Juan , Zhang Shi Gui
Published: September 2013

This paper describes the intermittent chaos detection principle, combined with differential form the double Duffing oscillator difference system to the weak signal frequency detection, gives the detailed steps of the method and flow chart. Use the feature that Duffing oscillators with specific reference frequency are insensible to other frequency signals interference, only sensitive to a small part of the nearby specific frequency signal, it comes to a conclusion that small amplitude periodic motion and intermittent chaos motion may appear at the same time in the detection system, which can be used to detect complex frequency signals. At last, takes the single frequency signal and the complex frequency signal detection for simulation, the results show that, compared with traditional Duffing oscillator array method, this method not only reduces the array number, and improved frequency detection bandwidth without affecting the detection accuracy, reduces the calculation amount, so its much better than the traditional method for frequency detection.
A New Efficient Variant of the Batch RSA Cryptosystem
Authors: Gao Ming Hu , Huang Hong Yuan
Published: September 2013

This paper aims at speeding up Batch RSA decryption. The performance of Batch RSA decryption has directs relationship with the efficiency of the full-sized modular exponentiation implementation in the Exponentiation Phase. This paper proposes a variant (BS1PRSA-Batch RSA-S1 Multi-Power RSA) to improve the Batch RSA decryption performance. The experimental results show that the speed of the decryption has been substantially improved.
The Globally Linear Embedding Algorithm
Authors: Xia Jie Yun , Lian Shuai Bin
Published: September 2013

LLE is a very effective non-linear dimension reduction algorithm and widely explored in machine learning, pattern recognition, data mining and etc. Locally linear, Globally non-linear has always been regarded as the features and advantages of LLE. However, the theoretical derivation presented in this paper shows that when the size of neighborhood is larger than the dimension of the space in which the data are presented, LLE is no longer global nonlinear and almost has the same effect as PCA in dimensionality reduction. At present, a lot of literatures on LLE verify their results on Swiss Roll, Punctured Sphere, Twin Peaks, etc. These manifolds are presented in the three-dimensional Euclidean space and the size of neighborhood is always larger than three to prevent too small to be effective. But in these cases, LLE cannot play its advantage of nonlinearity.