bluuebunny/crossref_metadata_2025 huggingface dataset:
S2AMR: Security- and Stability-Aware Multipath Routing Protocol in MANETs
Authors: Peng San Cheng
Published: December 2012

To achieve survivable communications, it is important to build trusted and stable routes in routing algorithm for mobile ad-hoc networks (MANETs). This paper proposes a multipath routing protocol, the security- and stability-aware multipath routing protocol (S2AMR), locating and preserving the trusted and stable routes in MANETs. In S2AMR, we combine a dynamic trust mechanism with a stability model to satisfy the security requirements and stability requirements, respectively. S2AMR is extended by the AODV protocol, in which a node makes a routing decision based on the trust value on its neighboring nodes and its stability degree, and finally a set of survivable routes are established through the trust value and the stability degree of nodes along these routes. The effectiveness of our approach is validated through extensive simulations.
An Efficient Integrated Bandwidth Allocation Scheme for DOCSIS Networks
Authors: Chen Xian Min , Wang Chih Chieh , Lin Hai Chun , Yang Tian Hua
Published: December 2012

An efficient Integrated Bandwidth Allocation Scheme (IBAS) is proposed to serve the lower priority requests can be early assigned the bandwidth without waiting too long. These will speed up the channel capture by priority data to support the multimedia traffic over DOCSIS-compliant cable networks. The efficiency of IBAS is investigated by simulations. The results show that by adopting IBAS can not only shorten the collision period but also minimize the average request delay of lower priority requests. Performance has been improved in throughput and delay compares to the current DOCSIS specifications.
Distributed Frequent Item Mining
Authors: Zhang Yu
Published: December 2012

In today's Internet, there are large amounts of data spreading over many physical distributed nodes which makes it impractical to send all the data to one central node for query processing. Finding distributed frequent items is important for a number of applications such as DDoS attack mitigation and worm detection. In this paper we propose a novel distributed frequent item mining framework with guaranteed accuracy and lowest communication cost. The theoretical correctness and communication complexity analyses are presented.
Adaptive Body Support System for Aircraft Seat
Authors: Tan Chee Fai , Rauterberg G.W. Matthias , Chen Wei , Kher Vee Kiat
Published: December 2012

The development of new technology enables the comfort service becoming an important requirement in the air travel industry. Long haul air travel may cause different physiological and psychological discomfort of aircraft passenger. Most of the aircraft company treats the passenger comfort as a main priority for the user’s acceptance of their airline. In order to improve the aircraft passenger body comfort during long haul air travel, an adaptive body support system was developed and embedded in the economy class aircraft seat. In this paper, we describe the development of adaptive body support system.
Global Shared Memory Design for Multi-GPU Graphics Cards on Personal Supercomputer
Authors: Guo Sen , Chen San Feng , Liang Yong Sheng
Published: December 2012

When programming CUDA or OpenCL on multi-GPU systems, the programmers usually expect the GPUs on the same system can communicate fast with each other. For instance, they hope a device memory copy from GPU1s memory to GPU2s memory can be done inside the graphics card, and needn’t to employ the PCIE, which is in relative low speed. In this paper, we propose an idea to add a multi-channel memory to the multi-GPU board, and this memory is only for transferring data between different GPUs. This multi-channel memory should have multiple interfaces, including one common interface shared by different GPUs, which is connected with a FPGA arbitration circuit and several other interfaces connected with dedicated GPUs frame buﬀer independently. To distinguish the shared memory of a stream multiprocessor, we call this memory Global Shared Memory. We analyze the performance improvement expectation with this global shared memory, with the case of accelerating computer tomography algebraic reconstruction on multi-GPU.
The Integration Technology and Analysis of Information System
Authors: Li Xianyu , Wang Hua , Xiang Gang , He Hui , Zuo Huijun
Published: December 2012

Based upon the resume of information system integration, this paper sets forth the system integration technologies, such as system architecture technology, collective design technology, system integration design technology, data sharing technology, system integration validation technology, system modeling and simulation technology and integration engineering management technology, and puts forward the integration effect analysis. Thenceforth a primary prospect is presented.
Remanufacturing Technology Innovation for Second-Hand Computer
Authors: Shi Pei Jing , Wang Hong Mei , Zhang Wei , Xu Bin Shi
Published: December 2012

The volume tendency of in-use and second-hand computers in China were analyzed, the emerging danger of second-hand computers by incorrect treatment was summarized, the integration disposal technologies based on remanufacture and reuse technology aiming at monitors, electronic devices, metals, plastics materials, and overall computers were put forward, the economic and social benefits were also analyzed. The results show that the integration disposal process of second-hand computer is an optimum approach to save the resource of electromechanical products. Remanufacturing and disposal 100 thousands second-hand computers per year could create profits about ￥10 millions and provide employment for 300 persons. It can be deduced that there are great potential opportunities for the second-hand computers disposal industry containing recycle, remanufacture and reuse engineering.
Batch Splitting Activity in Scheduling of Virtual Cell with Capacity Constraints Based on Bi-Level Mathematical Model
Authors: Han Wen Min , Chen Juan , Bu Xiang Zun
Published: December 2012

Although there has been some researches about virtual cell manufacturing system, the existing literature lack of discussion about the scheduling model that considering with bottleneck machines in the virtual cells. In view of this deficiency and the new characteristics of the batch splitting problem, this paper considered the batch splitting (or lot splitting) problem in scheduling of virtual manufacturing cells with bottlenecks and multiple machine types, and each of which has several identical machines. In consideration of the hierarchical decision structure of the problem, we developed a bi-level multi-objective mathematical model. Scheduling results and batch splitting strategies of both bottleneck and non-bottleneck machines are given in separate decision levels and additional scheduling objectives are improved in the second model level, while maintaining the maximum use of the bottleneck machine ability. In order to demonstrate how this approach works, application example was shown in this paper.
On Robust Stability of Stochastic Systems with Uncertainties and Distributed Time-Varying Delays
Authors: Wang Cheng , Zhang Qing , Gan Jian Ping
Published: December 2012

This paper is concerned with the robust stability analysis for uncertain stochastic systems with distributed time-varying delays. By using the stochastic analysis approach and free-weighting matrices, new delay-dependent stability condition is established in terms of LMI to guarantee the uncertain stochastic distributed delay system to be robustly asymptotically stable in the mean square.
Research of Airfield Lighting Insulation Resistance Prediction Based on Gray System Theory
Authors: Wang Xiu Yan , Li Cui Fang , Li Zong Shuai , Lin Jia Quan
Published: December 2012

Airfield lighting circuit is an important part of airfield lighting system, and the insulation resistance value of this circuit is affected by humidity, temperature, the quality and the number of the Isolation Transformers and many other factors, so it is difficult to accurately predict the resistance size by using traditional methods. In the light of insulation resistance values of airfield lighting circuit, this paper put forward adopting Gray System Theory to make the prediction, and then build GM(2,1) model to analyze and forecast the resistance values according to the actually measured values of the insulation resistance at Shanghai Pudong International Airport. Finally, the research shows that there is only a little difference between predicted values and the actually measured values. In other words, the prediction of insulation resistance based on Gray System Theory is viable.
Feedforward Micro-Extended-Analog-Computer Array
Authors: Wang Jia Si , Zhang Ying , Ai Di Ming , Pan Feng
Published: December 2012

The micro-Extended-Analog-Computater(uEAC) is a newly emergent unconventional computing model under research and development. Although, a single uEAC unit can achieve some classic pattern classification problem, the slop of the classification face generated by uEAC is a constant and moves parallely. So a feedforward array structure is proposed for the improvement of uEAC, and Particle Swarm Optimizer(PSO) is utilized to configure the uEAC array. The analysis of the mapping characteristics and numerical experiments both illustrate the effectiveness of the improvement.
Additive-Accelerated Hazard Ratio Model for Multiple Type Recurrent Events Gap Time
Authors: Liu Huan Bin
Published: December 2012

Multiple type recurrent event data is often observed in clinical medicine, epidemiology, biostatistics, and other related applied research fields. This paper presents an additive-accelerated hazard ratio model for multiple type recurrent events data, and gives the estimation methods of unknown parameter and non-parameter function based on the idea of estimating equation. In addition, it provides the expression of unknown regression coefficient as well as the benchmark hazard ratio function.
Illustration and Model Verification for an Inter-Cell and Intra-Cell Facility Layout Problem in a Cellular Manufacturing System
Authors: Ariafar Shahram , Ismail Napsiah Binti , Ariffin Mohd Khairol Anuar Mohd , Tang Say Hong , Firoozi Zahra
Published: December 2012

In a Cellular Manufacturing System (CMS), parts based on their similarities are grouped into part families, and are assigned to one or more machine cells to be manufactured. In the design of a CMS, facility layout problem aims to arrange machine cells in the shop floor and facilities in the machine cells in order to have an efficient layout. In this study, a previously developed cellular layout model will be illustrated and validated for a well-known case from the literature. Lingo optimization software version 12.0 and an enumeration method will be used to solve, and validate the model. The results of this study show the validity of the proposed model.
A Parallel Block Predictor-Corrector Method by Python-Based Distributed Computing
Authors: Yu Kun Ming , Lee Ming Gong
Published: December 2012

This paper is to discuss how Python can be used in designing a cluster parallel computation environment in numerical solution of some block predictor-corrector method for ordinary differential equations. In the parallel process, MPI-2(message passing interface) is used as a standard of MPICH2 to communicate between CPUs. The operation of data receiving and sending are operated and controlled by mpi4py which is based on Python. Implementation of a block predictor-corrector numerical method with one and two CPUs respectively is used to test the performance of some initial value problem. Minor speed up is obtained due to small size problems and few CPUs used in the scheme, though the establishment of this scheme by Python is valuable due to very few research has been carried in this kind of parallel structure under Python.
Study on Intelligent Monitoring and Controlling System in Oil Drilling Optimization
Authors: Guo Jian Ming , Wang Zheng , Wang Yan Ping
Published: December 2012

With the increase of drilling data scale, real-time optimal drilling engineering seems to be difficult only by manual or traditional computer data, numerical, even simple knowledge processing. In such a case, Integration knowledge system is proven to be helpful in optimal drilling and improvement of drilling efficiency. A integrated and shared platform is built up about multi-source heterogeneous drilling data and information, to establish the conditions of intelligent reasoning; A multi-hierarchy and multi-modality knowledge model is created based on Ontology, they can define the performance, structure, function, axiom and case of glossary in oil drilling optimization domain, and integrate drilling optimization requirement, static and dynamic drilling data and Problem-Solving Method(PSM)；An evolutionary uncertainty reasoning mechanism is built up to integrate rule and case reasoning based on Bayesian Network; An integrated knowledge system is exploited based on the knowledge model of and its reasoning. By application in oil field, the results show its intelligent level and reliability improve clearly, and prove that optimal drilling knowledge model created based on ontology can meet the neets of share and re-usability of knowledge in a special field, and the model has wide application prospects.
An Embedded Optical Vector Matrix Multiplication Processor
Authors: Fu Hui Kai
Published: December 2012

In this paper, an embedded architecture of optical vector matrix multiplier (OVMM) is presented. The embedded architecture is aimed at optimizing the data flow of vector matrix multiplier (VMM) to promote its performance. The performance according to the architecture is analyzed and the simulation shows that Amdahl's law is used to analyze the hybrid opto-electronic system, and the electronic part and its interaction with optical part form the bottleneck of system.
A Semantic-Oriented Method for Ontology Merging
Authors: Zhang Hai Li , Gao Wan Lin , Chen Ying , Deng Huan Fang , Liang Dong Hua , Wang Qing Fa , Chen Yu Chun
Published: December 2012

Most of the methods for ontology merging need participation of domain experts and provide only partial automation with low efficiency. It is time-consuming and laborious especially when large amount of data are to be merged. In this paper, a method based on semantic is designed for ontology merging according to the case of ontologies to be merged. In this method, first the ontologies to be merged are conversed into a unified format. Then a secondary file is generated. After that semantic analysis is applied to secondary file and a dynamic SQL statements is generated automatically. At last the SQL statements are executed to finish ontology merging. It has been proved by the experiment that using this method would get good precision and high efficiency. Using this method, two ontologies Chinese Agricultural Thesaurus and AGROVOC of the Food and Agriculture Organization are merged successfully.
An Improved Direction-of-Arrival Estimation Method Based on Sparse Reconstruction
Authors: Han Xue Bing , Jiang Zhao Jun
Published: December 2012

In this paper, we account for efficient approach of direction-of-arrival estimation based on sparse reconstruction of sensor measurements with an overcomplete basis. MSD-FOCUSS ( MMV Synchronous Descending FOCal Underdetermined System Solver) algorithm is developed against to sparse reconstruction in multiple-measurement-vectors (MMV) system where noise perturbations exist in both the measurements and sensing matrix. The paper shows how sparse-signal model of DOA estimation is established and MSD-FOCUSS is derived, then the simulation results illustrate the advantage of MSD-FOCUSS when it is used to solve the problem of DOA estimation.
Application of Visual Basic and FORTRAN Mixed-Language Programming to Visualization Technology for Hydro-Meteorological Model
Authors: Wang Yong , Ding Yuan Yuan , Shi Lan
Published: December 2012

Combining graphical user interface in Visual Basic (VB) and numerical computing capability in FORTRAN, the hydro-meteorological model of the plain river network region was developed. This paper discussed some key problems, such as calling FORTRAN DLL from VB, FORTRAN compiling executable file called by VB, and the visualization platform development with VB and FORTRAN. It solved the problems of data processing, data transmission, and calling hydrological model. Mixed-language programming technique is a very effective and useful way of building visualization platform.
Comparative Research of Two XML Document Storage Modes Based on Relational Database
Authors: Fu Da Jie
Published: December 2012

XML has become one of the general data exchange formats in the current Web application programs, with a wide range of applications in e-commerce, e-books, mobile communications and other fields. XML data storage technology is the key technology for XML applications, and an effective XML data storage, retrieval and management mechanism is a strong driving force for the development of XML. At present, XML data storage technology is generally divided into two categories, which are storage technologies based on a file system and based on a database. In this paper, the technical characteristics of the two XML document storage modes have been discussed, and their advantages and disadvantages have also been analyzed and compared.
Design and Implementation of Bi-Direction Real-Time Traffic Electronic Map
Authors: Shi Jun Yong
Published: December 2012

Information integration based on GIS is the key of digital city. Taking the integration of real-time traffic information and basic geography data as an example, the model of data storage, data illustration and information display were analyzed. Data was stored in TAB format, and was read and written using Mitab open source library. VGLibrary was developed based on MiniGUI to draw vector graphics, e.g. symbol, parallel polyline, polygon. At last, the application has functionality of viewing, roaming and zooming an electronic map. The design takes loose coupling method and efficiently integrates other information with basic geographic data.
Design of Electric Vehicle Charging and Swapping Business Management Based on Platform - Plugin Structure
Authors: Chu Yi , Zhao Ming Yu
Published: December 2012

The dynamic compatibility of the device and communication protocols in operation management system of electric vehicles charging station was studied. Using NPAPI plug-in technique of Netscape series browser, the communication plug-in models are set up which separate the channel management and communication protocols translation from the charging and swapping business management system, and the cross-platform package is successfully developed. The protocols identifying, frames composing and decomposing are realized through designing the data structure and the functions in the modules. Practice indicates that with the communication plug-in, different remote terminal units can be compatible dynamically by operation management system on different platform, and charging business management of the system can be completed. Thus the business management system can run stably and efficiently.
Design of the Data Centre Based on the Cloud Computing for University
Authors: Liu Yong Liang , Zhang Wei Hong , Dong Peng
Published: December 2012

Using the cloud computing can effectively solve the traditional data centre’s problems, such as lower utilization ratio of resources, excessive power consumption and difficulties in management. The design idea for the virtualization of data centre based on the cloud computing is described in detail. The solutions for the hardware construction and the software platform design are proposed. The security management of the data centre is briefly described.
Design of the Stack Structure Based on DNA Computing Model
Authors: Wang Qing Hu , Pei Zhi Li , Lian Jie , Lu Ning , Lu Yi Nan
Published: December 2012

DNA computer is a new type of computer which computing by biological molecular techniques. If DNA computer want to realize its practicability, it must be the same as a traditional computer. In order to settle the issues of representation and organizational in DNA computer, we need a reasonable data structures to effectively represent and organize the information of DNA computer. The thesis designs a stack structure model based on DNA computing, which can express limited stack constraints through hairpin structure. At the same time, it can complete the operations of entering stack and leaving stack using two different restrictive enzymes.
Engineering Three-Dimensional Digital Modeling Technology Based on the OGRE Graphics Engine
Authors: Wei Lu Shuang , Wang Ying
Published: December 2012

In order to solve the problem that the engineering three-dimensional data field model in the virtual reality environment cannot be modified in real time and cannot carry out dynamic simulation, this paper proposes the skeleton grid modeling technology and establishes an engineering three-dimensional data model based on the OGRE graphics engine, which achieves a data-driven dynamic three-dimensional graphic construction. The technology has the ability to modify the real-time model grid geometry and topological characteristics, and provides the possibility of real-time simulation for large projects.
Exploration on the Application of Real-Time Database in Ship Electronic Information System
Authors: Huang Kun , Zhang Jian , Yao Jin
Published: December 2012

This paper presents the technical advantages in the application of real-time database according to the development trend of ship electronic information system. The structures of RDM real-time database and processes of development are described in terms of the application of COTS technologies. Performance tests and competitive experiments are undertaken between commercial database and RDM real-time database, and the tests show the performance predominance of real-time database. Our paper fills a vacuum of experimentally performance test of real-time database in ship electronic information system.
Data Convert and Load to Link Port Based on FPGA
Authors: Qiu Qian Bao , Ling Yu Jin , Sun Yu
Published: December 2012

Introduced the design and realization method about the serial data converted and loaded to ADSP TS101 Link Port. According to the serial data transmission protocol and practical application, it used UART method to receive differential serial data. According to Link Port communication protocol designed a sequence to load data. It designed that serial data converted and loaded to Link Port based on FPGA. Researched the method based on hardware circuit designing and realization. According to the UART and Link Port protocol, the software was designed to realize demanding function. The practical application shows that this method can reliably achieved the foundations of serial data converted and loaded to Link Port. It has not carried out any data loss, distortion, or other phenomenon.
Requirement Analysis of Storage Management System
Authors: Peng Xia , Zhu Ping
Published: December 2012

The storage management system manages and controls for storage in-out stock activities, and has an important significance for coordinating production and operation of enterprise, improving economic efficiency. Requirement analysis is the basis of software development, mainly is functional requirement analysis and performance requirement analysis. First, do the functional requirement analysis, through analysis the business processes, analysis the main functions and processes of system with data flow diagram, and list the buyer, purchase commodity information, sales production, commodity stock table and data dictionary item. Then, do performance requirement analysis; describe the main content of the three aspects of accuracy, time characteristics and flexibility, especially analysis the C/S structure model to build software systems. In this paper, describes the overall concept of software function and performance as the specific software requirement specification, lays a foundation for the development of storage management system.
Research on Database Design of Corn Decision Support System
Authors: Lin Nan , Yu He Long
Published: December 2012

This research is about the application of decision support system in agriculture. The subject of study is the corn cultivated in Jilin province, northeast of China, and the research synthesizes expertise and experience on corn cultivation, plant protection, soil and fertilizer, and agriculture ecology from experts, integrating computer technology, principle of decision support system with corn production knowledge. The research also concerns decision support system for corn fertilization and diagnosis of insect disease and weed harming. Database is designed as the basis of decision support system, including conceptual design with object definition language, logic design and physical design. Further design for the relevant system is also inquired into.
Research on Flexible Web Application Data Modeling Based on XML Database
Authors: Zhou Chuan Sheng
Published: December 2012

Alone with web technologies has being used in many and many fields, a lot of enterprises have been upgrading their business application into web based systems. From both enterprises and web application providers’ point of view, all they need to design a web application flexible enough not only to adapt to the enterprises business changes, marketing change, but also to be easily customized the web applications for different deployments. While in order to satisfy to both these two targets, the flexible web application data modeling is one of the key problems. Here, by research on XML with templates and XML database technologies, from data concept model, logic model and physical model to illustrate a XML database based data modeling to improve web applications flexibility at design time.
Design of Multi-Parameter Psychophysiological Feedback Analysis System
Authors: Li Zhang Yong , Jiang Yu , Liu Ya Dong
Published: December 2012

In order to supply an effective and reliable tool for the Psychology research in quantity, a multi-parameters psychophysiological feedback analysis system was designed. It can measure several physiological parameters closely related to psychological factors and can realize automatically controlling test gain using a DAC feedback adaptive circuit. Communication protocol is used to increase reliability of data communication and LMS algorithm was used in the system for noise elimination, real-time and data accuracy can be guaranteed. After the debug and verified, multi-parameter system can collect real-time and stable physiological parameters with a higher precision, it provides a feasible monitoring program for psychological assessment.
Simulation of Impact of Classroom Layout on Evacuation Efficiency Based on Cellular Automata
Authors: Xu Gang , Liang Zhen Yan , Liu Hai Yan
Published: December 2012

This paper, based on the principle of Cellular Automata, simulated the emergent evacuation from a floor of lecture building with different layouts inside the classrooms commonly seen in colleges in China. The psychological factors and behaviors of students during the emergent evacuation were simulated with the distance parameter as the basic judgment for evacuation direction based on Cellular Automata in the present paper. Meanwhile, the impacts of four different internal layouts on the evacuation time, average density, average velocity, and average flow rate were investigated. Simulation results show that the difference in classroom layout affects the evacuation efficiency. It also proves that the classroom layout in Room1 is the most reasonable when emergency evacuation is involved.
The Application of KDD in HIS
Authors: Qin Yuan Bo , Lu Dong Xin
Published: December 2012

This paper summarizes the concepts of AI(artificial intelligence), ML(machine learning) and KDD (knowledge discovery in databases), including the development, definition, 5 knowledge types, 7 tasks, processes and technologies of KDD. It also introduces the HIS(hospital information system), including the introduction and benefits and HIS in China. At last the paper illustrates the application of KDD in HIS, especially in detecting and explaining key information from databases.
The Extension of KQML Primitive in Large Database Operation
Authors: Yu Miao
Published: December 2012

In Multi-Agent system, the communication among the Agents is the basic problem. The Agent communication language design, especially for large database operation, has been the important part for improving the Multi-Agent system performance. Based on the Multi-Agent large scale database operation, this paper extends the KQML's Primitive for Agents communication. The extended KQML's Primitive can improve the Agent communication performance and the database query performance.
The Improved Corner Detection for Video Text Positioning Algorithm
Authors: Wu Yan Hai , Li Jia Xin , Zhang Fang Ni
Published: December 2012

This article mainly aims at the problem of the video text font size, achieved a algorithm of multi-scale corner text detection, and combined with the characteristic of word usually has the same color, even more precise positions the text area with color clustering way.This algorithm not only detect the game scene, video ads and video news kind of information in words, but also be used for the natural scene of the text of the detection positioning.Finally, test a public data sets, and the test results show that the proposed method can detect and positioning video the text in the complex information.
A Load Balancing Policy for Virtual Desktop Service
Authors: Son Sung Hoon
Published: December 2012

In this paper, a virtual machine migration policy for large scale virtual desktop service is proposed. Usually a virtual desktop service is composed of several physical machines, each of which is running several virtual machines. Sometimes virtual machine should be relocated to other physical machine when load balance over the system lost. In this situation, a management server must answer two questions: who should be relocated and where is the destination host? The proposed migration policy in this paper is three kinds. We suggest the best policy from the viewpoint of user and system. By experiments, we show that our policy reduce user connect time and increase the number of concurrent virtual machines.
A Study about Lohmann III and Burch Encoding Method to Making CGH
Authors: He Long Qing , Bai Xiu Li , Lin Ji Cheng
Published: December 2012

By applying the Matlab software ,the Lohmann Ⅲ and Burch encoding method are used to achieve the Fourier transform hologram respectively. The computer simulation reconstruction of the hologram is achieved. The characteristic of the Lohmann Ⅲ and Burch encoding method are discussed.
New DOA Estimation Method for Wideband Coherent Signals in the Presence of Correlated Noise
Authors: Zhang Jin , Mao Yun Xiang , Zhang Jian Yun
Published: December 2012

With a uniform linear antenna array, a new direction-of-arrival (DOA) estimation method is proposed for wideband coherent signals in the presence of unknown correlated noise but with structured covariance matrix. Based on this proposed structure, i.e. Hermitian Toeplitz, a spatial differencing operation that exploits this symmetry is applied to remove the effect of the unknown noise and a new matrix is constructed accordingly at each frequency bin. Following this step, a focusing operation is performed to give the corresponding aligned covariance matrix. Finally, an eigenstructure-based DOA estimation method is applied. The validity of the method is supported by numerical simulation under various conditions.
An Efficient Approach of Convex Hull Triangulation Based on Monotonic Chain
Authors: Zhang Yu Ping , Deng Zhao Ri , Zhang Rui Qi
Published: December 2012

The triangulation of convex hull has the characteristics of point-set and polygon triangulation. According to some relative definitions, this paper proposed a triangulation of convex hull based on a monotonic chain. This method is better than Delaunay algorithm and is more efficient than other convex polygon algorithms. It is a good algorithm.
An Improved Ant Colony Optimization for VRP with Time Windows
Authors: Yu Su Ping , Li Ya Ping
Published: December 2012

The Vehicle Routing Problem (VRP) is an important problem occurring in many distribution systems, which is also defined as a family of different versions such as the Capacitated Vehicle Routing Problem (CVRP) and the Vehicle Routing Problem with Time Windows (VRPTW). The Ant Colony Optimization (ACO) is a metaheuristic for combinatorial optimization problems. Given the ACO inadequacy, the vehicle routing optimization model is improved and the transfer of the algorithm in corresponding rules and the trajectory updated regulations is reset in this paper, which is called the Improved Ant Colony Optimization (I-ACO). Compared to the calculated results with genetic algorithm (GA) and particle swarm optimization (PSO), the correctness of the model and algorithm is verified. Experimental results show that the I-ACO can quickly and effectively obtain the optimal solution of VRFTW.
New Sufficient Conditions on H∞ Filter Design for Nonlinear T-S Fuzzy Systems with Time Delays
Authors: Yi Su Huan , Huang Sheng Juan
Published: December 2012

This paper focuses on the problem of H∞ filter design for continuous Takagi-Sugeno (T-S) fuzzy systems with an interval time-varying delay in the state. Based on the free weighting matrix method combined with a matrix decoupling approach, some new sufficient results are proposed in forms of linear matrix inequalities (LMIs), which can achieve much less conservative feasibility conditions. Finally, the effectiveness of the proposed method is demonstrated ba an example.
Design of Virtual Machine Monitor for Embedded Systems
Authors: Son Sung Hoon
Published: December 2012

Recently virtualization has been one of the most popular research topics in system software area. While there are many commercial virtualization products for general-purpose computer system, little efforts are made to virtualize embedded system. In this paper, we design and implement a virtual machine monitor which divides each physical hardware resource of an embedded system into logical ones and reorganizes them into many virtual machines so that several real-time operating systems run concurrently on a single embedded system. We measure various performance metrics of the virtual machine monitor developed on a real embedded system. The results of the measurement study show that our virtual machine monitor has enough potentiality of its application to real-world embedded systems.
Research and Implementation of Synchronization Technology Prioritization Scheme of CDIO Teaching System Data Base Based on Android
Authors: Hu Hai Yan , Yan Hui
Published: December 2012

In order to realize the aim of engineering educational reform in a better way and transplant and expand teaching system under the model of CDIO to Android mobile platform, this paper mainly researched how to better protect the synchronization between client side and server during the process of using CDIO teaching system in the Android mobile platform. The key problem in the research is to apply Hash algorithm to data base update of CDIO teaching system in the Android platform, which decreases network flow, increases network use ratio and optimizes the system’s performance when compared to the traditional data synchronization algorithm.
Non-Subsampled Contourlet Texture Retrieval Using Four Estimators
Authors: Chen Xin Wu , Ge Jing , Liu Jin Gen
Published: December 2012

Contourlet transform is superior to wavelet transform in representing texture information and sparser in describing geometric structures in digital images, but lack of robust character of shift invariance. Non-subsampled contourlet transform (NSCT) alleviates this shortcoming hence more suitable for texture and has been studied for image de-noising, enhancement, and retrieval situations. Focus on improving the retrieval rates of existing contourlet transforms retrieval systems, a new texture retrieval algorithm was proposed. In the algorithm, texture information was represented by four statistical estimators, namely, L2-energy, kurtosis, standard deviation and L1-energy of each sub-band coefficients in NSCT domain. Experimental results show that the new algorithm can make a higher retrieval rate than the combination of standard deviation and energy which is most commonly used today.
Research and Realization of Security Electronic Voting Plan Based on Homomorphic Commitment Verifiable Secret Sharing
Authors: Yan Yao Jun , Hu Hai Yan
Published: December 2012

In this thesis, a kind of electronic voting plan based on homomorphic commitment verifiable secret sharing is posed through the combined research on electronic voting and security multi-party computation. This plan applies homomorphic commitment technology which is characterized by two-way authentication during agreement implementation process and can distinguish the dishonest voters and counting mechanisms, and thus, security and impartiality of voting are guaranteed well.
Research of IOT Context-Aware Processing Framework Based on Complex Event for Supply Chain Application
Authors: Li Jun Tao , Lin Gang , Cheng Xiao Lin
Published: December 2012

In order to solve the logic fault of Internet of things technology applied in the supply chain system, this paper presents a supply chain oriented context-aware Framework which is based on Complex Event Processing. The frame is subdivided into five levels and proposes an active event flow situation model based on Complex Event Processing. Besides, it can provide a semantic senior situation for the application of the upper layer through processing the uncertainty contextual information under the semantic rules, as a support for the top decision.
Research on Building a Chinese Sentiment Lexicon Based on SO-PMI
Authors: Yang Ai Min , Lin Jiang Hao , Zhou Yong Mei , Chen Jin
Published: December 2012

Considering user behavior, this paper has built a Chinese sentiment lexicon based on improved SO-PMI algorithm. Sematic lexicons were used to classify the sentiment of the collected Chinese hotel reviews. The experiment has compared the feature extraction between CHI and sentiment lexicons to find out different classification performances. The results indicate that feature extraction based on sentiment lexicon gains higher F1. The performance of classification method “Basic Semantic Lexicon + BOOL + NB” gains 92.40% of F1. Based on different sentiment lexicons, the experimental results shows that (SO-A) and (SO-P) is slightly better than NB classifier. Therefore, it would be effective to use ((SO-A) and (SO-P) as text sentiment classifiers. The experiment also finds out the method “Hotel Reviews Semantic Lexicon using improved SO-PMI algorithm +((SO-A)” gains the highest F1 which is 92.84%. The results reveal that improved SO-PMI does more effective on weight calculation and sentiment lexicon building.
Research on Software Interface Testing Technology Based on CAN Bus
Authors: Chen Zhong Wei , Xiang Liang , Li Xiao Xia , Du Song Yang
Published: December 2012

This paper firstly introduces the basic information of CAN bus and the general method of CAN testing and points out that application layer protocol is hard to test. Secondly, this paper adapts the method of capturing, analyzing, constructing and sending CAN bus data packet to analyze certain oil system software interface protocol. Then, this paper proves this method can be usde to test the accuracy of the software interface and conduct the further software interface testing.At last,this paper points out the application suggest of this method.
Research on the Dynamic Integrating with Heterogeneous Database System Based XML and Hibernate
Authors: Zhang Zhen You , Chang Shi Guang , Ding Tie Fan
Published: December 2012

This article proposed uses xml and the Hibernate technology based on the B/S structure realizes heterogeneous database dynamic integration plan. This system through the programming interface JDom to implement a Hibernate configuration file automatically generated, using of global data dictionary access to various heterogeneous data sources and the overall database table, and realization of the heterogeneous data sources and automated maintenance of the global data dictionary. The system has a good maintainability, scalability, portability, etc.
Research on Triangular Meshes Generation of 2D Garment Pattern
Authors: Fang Gui Sheng
Published: December 2012

Virtual garment design and flexible fabric simulation are the major research focuses in the field of computer graphics. The two-dimension contour design and triangular meshes generation of garments are the basis of 3D virtual garment stitching and dynamic simulation. In the development environment of VC++ and OpenGL, in this paper three kinds of design methods are used to obtain the 2D contour of garments. Based on the regular grid method, the coordinate perturbation technique and the improved Delaunay triangulation method are used to realize the triangular meshes generation of the 2D garment. In order to improve the efficiency and readability of the algorithm, the standard template library technology is also adopted. The experimental results show that this method can achieve the requirement of the real-time simulation.
Semantic Service Registration and Retrieval for Smart Home
Authors: Zhao Yan Qing , Zhu Shi Wei , Yu Jun Feng , Wang Ai Ping
Published: December 2012

In order to solve the syntax problem of service retrieval based on keywords, we present an Ontology-based solution for service registration and retrieval in this paper. Firstly we analyze the semantics of home service from different facets, and extract relative concepts of service to construct three domain ontologies including function ontology, content ontology and device ontology. Then, a model based on these domain ontologies has been presented. Finally the process from registration to retrieval is given in detail.
Study and Optimization of Database on Android Platform
Authors: Wang Gang , Zhao Ming Yu
Published: December 2012

Due to the poor database performance situation on Android operating system, put forward a methods of database access performance optimization. The paper first analyze the Android database access principle, architecture of SQLite and Berkeley DB, and methods of Berkeley DB in concurrent access, then put forward a method of porting Berkeley DB to Android to replace SQLite to enhance the database access performance. Finally a series of practical benchmark results shows that the porting brings performance improvement effect.
Study on Message Transmission Technology Based on Dynamic Priority
Authors: Wang Jia Si , Du Song Yang , Wang Xiong Gao , Ai Di Ming
Published: December 2012

Through analyzing the unique requirements of military command and control software and the characteristics of wireless message transmission, this paper studies a new message transmission mechanism based on wireless narrow band transmission, bring forward the proposal of improving wireless message transmission efficiency through improving the message queue transmission mechanism of the software, and verifies it in the new software version. The results show that new transmission technology greatly improves large-scale network transmission effect.
Study on Simulation Model of Supply Safety Storage Base on System Dynamic
Authors: Bao Li Ping , Wang Yi Shan
Published: December 2012

We structured simulation model of supply safety storage by using system dynamic (SD), made computer trends simulation. Based on the result, we tentatively calculated supply safety storage.
The Design of Intelligent Guidance System Model Based on Network Teaching Platform
Authors: Yan Hui , Wu Da Qin
Published: December 2012

In this paper, some researches have made on students’ independent learning, employing CDIO International engineering education idea and the theory of association path method and guidance, an intelligent guidance system model based on network teaching platform was designed. The system according to the students frequent access path, learning records and other information, applies Apriori algorithm for data mining, and integrates uploading new points of knowledge and old knowledge, to provide students a learning guidance and help students improve their learning efficiency.
The Key Technology of the Application of MultiGen Creator / Vega Prime in Visual Simulation System of Civil Aviation Airport
Authors: Song Wei Wei
Published: December 2012

Visual simulation is the most important manifestation of virtual reality technology. Take a civil aviation airport as an example of visual simulation, based on the real-time, interactivity and realism of visual simulation system, we discuss Creator 3.0 in building three-dimensional scene of the civilian airport, and the development of visual simulation system based on Vega Prime. The simulation results show that it provides the basis for the safe and reliable in air traffic control, reducing the working pressure of the air traffic controller, improving the operating efficiency of the air traffic, and increasing the traffic flow of air and surface.
The Research and Implementation of Screen Monitoring and Process Controlling in C/S Mode Based on C# Technology
Authors: Zhang Jia’ai
Published: December 2012

The technology of screen monitoring and process controlling are widely used in real life. Based on the C# technology, this paper introduces the principle of screen monitoring and process controlling. And it also gives a deep research into its methods and its implementation.
A Mesh Deformation Method with Multiple Editing Granularities
Authors: Deng Zheng Jie , Wang Feng Wei , Chen Guo Yuan , Shi Chun , He Shu Qian , Wu Shu Lei
Published: December 2012

This paper proposes a mesh deformation method being able to quickly exchange between different editing granularities. The method firstly simplifies the original model mesh to obtain an accuracy-specified control mesh while preserving user’s pre-configured control handle vertices, and then computes the original mesh vertices’ mean value coordinates on the control mesh. Next, uses the Laplacian deformation to deform the control mesh with user’s editing, and then computes the deforming result based on the new control mesh and the previous mean value coordinates. Users can quickly generate a different accuracy control mesh of the new mesh again for deforming with a different granularity. Users only need edit some control vertices, which contains user’s specified handles, so the manipulation is convenient. Experiments show that users can deform models with this method, while changing the granularity fluently and preserving mesh’s features.
A Multicontrol p-ary Subdivision Scheme to Generate Fractal Curves
Authors: Zheng Hong Chan , Li Yi , Peng Guo Hua , Tang Ya Ning
Published: December 2012

In this paper, we firstly devise a p-ary subdivision scheme based on normal vectors with multi-parameters to generate fractals. The method is easy to use and effective in generating fractals since the values of the parameters and the directions of normal vectors can be designed freely to control the shape of generated fractals. Secondly, we illustrate the technique with some design results of fractal generation and the corresponding fractal examples from the point of view of visualization. Finally, some fractal properties of the limit of the presented subdivision scheme are described from the point of view of theoretical analysis.