bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis and Design Based on the Educational Management System Adopting the Object-Oriented Modeling Technique
Authors: Lu Yu Yang , Yin Zhi Hao , Yang Yong , Yu Ben Cheng
Published: September 2013

This text has introduced a kind of design process on the basis of teaching administrative system facing target's modeling. During the design, we have used unified modeling language UML and modeling tool Rational Rose2002 Enterprise Edition analysis to conduct overall analysis and design. Meanwhile, we used Rose Delphi Link to produce the frame code of Delphies at the same time, so as to greatly improve the expansibility of the administrative system and the reusability of module .
Effects of e-Derivative on Algebraic Immunity, Correlation Immunity and Algebraic Degree of H Boolean Functions
Authors: Huang Jing Lian , Wang Zhuo , Zhang Jing
Published: September 2013

Using the derivative of the Boolean function and the e-derivative defined by ourselves as research tools, we study the Effects of e-derivative on algebraic immunity, correlation immunity and algebraic degree of H Boolean functions with the Hamming weight . We get some theorems which relevance together algebraic immunity, annihilators, correlation immunity and algebraic degree of H Boolean functions by the e-derivative. Besides, we also get the results that algebraic immunity, correlation immunity and algebraic degree of Boolean functions can be linked together by the e-derivative of H Boolean functions.
The Modeling Gear Optimization Design Research Based on Pro-E
Authors: Ming Zhe
Published: September 2013

With the development of computer technology, gear modeling in industry more and more widely used, the PRO-E tool has good modeling function, on the design of three-dimensional CAD tools has a significant role, the tracing point method, parameter method, plug-in method analysis, optimum gear profile modeling. On the tooth height model modification method, draw gear high maximum model modification, model modification can be assigned in the active or passive gear wheel tooth, but also at the same time in the driving wheel and a driven wheel model modification. Corresponding to a single tooth meshing zone involute not model modification, only to repair the dual meshing zone, reach the gear model optimization objective.
A Case Study for High-Level Course Website Development Based on RFID and Face Recognition
Authors: Qiu Yan , Zhou Lei , Zhu Quan Yin
Published: September 2013

in order to improve the level of quality course, new information technology is applied to upgrade construction mode of the traditional one. It is an inevitable trend of the rapid development of intelligent technology. Hybrid architecture of B/S and C/S is adopted in the proposed system design. In addition, the ThinkPHP framework based on PHP and database in MySQL are put to construct the high-level course Website. The automatic class attendance is achieved by serial communication programming on C#. The new technology of identification on RFID and face detection on EmguCV is introduced into it. All of those are aimed to enrich the course resources management and quality course tracking in the future. Through three month commissioning, it shows that the application system reaches the anticipative design goal.
Architecture of Campus Security Management System Based on WCF and RFID Technology
Authors: Li Yue , Zeng Wen Hua , Yang Lv Qing , Wu Zhuang Liang , Wang Mei Hong
Published: September 2013

This paper proposes a specific architecture of campus security management system based on WCF service of SOA and RFID technology, aiming at meeting the security and scalability requirement of the distributed environment of campus security management system. With the help of WCF service models, the underlying interaction among database, data access layer, RFID device information transaction and business logic processing are packaged seamlessly. Then the WCF service models provide platform-independent service to .Net MVC Framework Controller, which could be replaced by any type of caller, separating the presentation and implementation of this system. Because of the advantages of reducing the degree of coupling and greatly enhancing the security, scalability and reliability of the system, this architecture has been one of the recommended trends of software architecture.
Contrastive Study of MT Systems and CAT Tools
Authors: Tian Xujun
Published: September 2013

Machine Translation (MT) and Computer Aided Translation (CAT) are interrelated but different in nature. This paper, after introducing the working mechanism of both kinds of systems, compares and contrasts them systematically from the perspective of their designs, application scopes and translation engines, hoping to make the users understand the distinguished features and choose appropriate systems for their translation of didderent nature.
A New Model for Evaluation of Horizontal Well in Bottom Water Reservoirs
Authors: Yao Yue Dong , Li Yun Ting , Wang Yuan Gang , Ji Ze Min
Published: September 2013

It is the aim of this research to describe the horizontal well performance in different conditions, this paper firstly introduces 13 dimensionless variables to describe the influence factors of horizontal well performance in bottom water reservoir and calculates the range of all the variations from low to high level by making a statistics of the actual field data of the 23 horizontal wells, then establishes the oil recovery model with response surface method using a 3 level-13 variables Box-Behnken design (BBD) . Based on the evaluation model, single factor sensitivity and interaction analysis between any two factors are carried out. Finally, research on horizontal well in typical bottom water reservoirs indicates that the values calculated by the new evaluation model fit the actual field data, which proves that the evaluation model can provide criteria for the design or optimization of horizontal well development in a bottom water reservoir.
Construction of Virtual Campus of Gansu Normal University for Nationalities Based on ArcGIS
Authors: Wang Qian , Zheng Wei Min , Zhao Xiao Ming , Zhang Qi Peng
Published: September 2013

Based on precise drawing data of the AutoCAD,three-dimensional virtual campus system of Gansu Normal University for Nationalities was created.using SketchUp and 3D visualization of ArcGIS Desktop
Meat Pigeon Production Management Information System
Authors: Zhou Jian Jun , Wang Xiao Fang , Wang Xiu , Cai Ji Chen
Published: September 2013

A meat pigeon production management information system was developed. The system can carry through precision management for meat pigeon, which adopts RFID, computers and other IT technologies. Pigeon production management information system include two parts: breeding information collection handheld terminals and pigeon management information software system. The breeding information collection handheld terminal can collect production information of breeder pigeon. Breeding information collection terminals include electronic tag reader module, database storage module and human-machine interaction module. The pigeon management information software system can storage and statistics the data that collected by information collection terminal and can also generate standard breeder production record report for workers.
Construction Technology of the Distributed Management Platform on Mass Agricultural Information Resource
Authors: Zhu Hua Ji , Wu Hua Rui , Sun Xiang
Published: September 2013

The quantity of the agricultural information resource increases exponentially. Thus, the traditional management mode can’t satisfy the requirement. Many problems, such as storage facilities, query efficiency and synchronous update efficiency. The construction of the management platform on mass agricultural information resource based on the distributed mode has become a valid solution. By dissecting the Hadoop principle, the technical architecture of the distributed management platform on mass agricultural information resource, several core techniques, such as distributed storage about large files, distributed data model, cooperative scheduling method and data synchronization method, has proposed in this work. These methods provide theory evidence for the construction of the management platform.
The Design and Realization of the Single-Block Hash Function for the Short Message
Authors: Wang Jing Ya , Li Yong Zhen
Published: September 2013

The paper puts forward a message digest algorithm for processing the short message, the Single-Block Hash function, SBH-256. The message digest algorithm designed is processed by 32-step computation only for the characters whose length is less than 256 bits. The algorithm designed solves the shortages and blemish of these traditional message digests effectively, improves the operating efficiency and the length of its output value is 128 bits at the same time, it guarantees the same security with MD5. The experimental results show that the new message digest algorithm guarantees the security and improves the efficiency of short messages processed greatly and overcomes the shortage of traditional message digest algorithms.
Applications of Two-Dimensional Code in Ceramic Products for Anti-Counterfeiting
Authors: Xie Yong , Zhang Yi Lai
Published: September 2013

With the increasing popularity of the two dimensional barcode, two dimensional barcode applications are expanded rapidly, barcode and barcode technology permeates gradually to people's life, people from Cumbersome and repetitive work. After analysis the origin, coding theory, technological standards of the two-dimensional code, the development and prospect of two-dimensional code was elaborated. Incorporated in the security situation of the ceramic products, a new anti-counterfeiting method for ceramic products was proposed.
Towards Checking Bigraphical Context-Aware Models
Authors: Xu Dong , Zhu Gang , Xu De Zhen
Published: September 2013

Context-aware computing is an important aspect of Pervasive Computing, Cyber-physical Systems (CPS), Cloud computing, etc. Recently, few works have been reported on formal approaches for this area. Bigraph was proposed as a mathematical structure that is consist of two graphs, a place graph and a link graph, intended for modeling distributed, mobile systems, etc. Bigraphs and its corresponding Bigraphical Reactive Systems (BRSs) present a modern, graphical structure, algebra calculus for the description of the syntax and semantics of systems in accordance with the orthogonal notions of connectivity and locality. Bigraphs and BRSs have been applied in various areas. Bigraph is used to formalize context-aware models in this paper. Then, we present an approach to check the formal context-aware models. The formalisms and checking are explicitly depicted through a simple but non-trivial example.
Detection of Design Patterns in Software Design Model Using Graph
Authors: Liamwiset Chalida , Wiwat Vatanawood
Published: September 2013

Detection of design patterns in software design phase possibly ensures the non-functional requirements, regarding performance features, before investing the implementation. We formalize the structural UML class diagram using graph. By applying graph matching technique, we propose an alternative of subgraph matching algorithm to extract the local properties of the UML class diagrams and perform the detecting of subgraph of possible design patterns found in the target software design model.
Performance Analysis of Different Refrigerants in Two Stage Compression Cycle with an Expander
Authors: Xue Gui Jun , Liang Da Wei , Liu Guang Da , Li Shui Qing , Zhou Zhen Jiang , Xu Fang , Ye Yun Wang
Published: September 2013

Different refrigerants have different performance in same compression cycle, as TSCE+TG has two compressors, the refrigerants must be compressed between high pressure compressors and the lower. With high pressure and intermediate pressure increasing, the COP shows a downtrend. When evaporating temperature goes up, the COP decreases.
Research on Web Dynamic Ontology Construction Based on Concept Lattice
Authors: Song Hua Zhu , Wang Xiao Xue , Xu Lu , Zhou Fan
Published: September 2013

Ontology and semantic are very popular in Web, and the construction of Web dynamic ontology has been the problem urgent to be solved. Firstly, the basic framework for constructing Web dynamic ontology is shown. Next, the concept lattice is introduced, based on which the novel method of building Web dynamic ontology is given. It includes constructing the initial ontology, extracting web knowledge, generating the formal contexts, merging formal context, merging concept lattices with ontology-based similarity calculation, transforming the concept lattice to the ontology. At last, the stock information system is employed to verify the methods proposed. The results showed the stock ontology could be dynamically updated with the change from the Web, and we can get new inferred knowledge from the updated stock ontology by Racer; the method proposed is valid and feasible.
A Novel Secure Inter-Domain Routing for Identifier/Locator Split Network
Authors: Liu Ya Ping , Liu Zhi Hong , Ma Shi Cong
Published: September 2013

With the rapid development of the Internet, the de facto inter-domain routing protocol, Border Gateway Protocol (BGP), has become very vulnerable to many attacks. For this, several secure inter-domain protocols have been proposed, most of which are focus on addressing the issue of faking AS path, but cannot address other issues, such as violating routing policies, reachability attacks and so on. Based on the concept of identifier/locator split and routing isolation, we have proposed a secure identifier-based inter-domain Routing, SIR [, which can provide control plane security without using the high overhead mechanism. Then, we here optimize SIR and propose another secure inter-domain routing, Optimized SIR (O-SIR), which introduces a checked path table and records the path which has been checked before in each AS. We present the simulations based on the real world datasets CAIDA and compare the performance between SIR and O-SIR by different deployments and different position of attacks. The results show that O-SIR can reduce 18%-45% communication cost of verifying paths with additional below 0.1% routing table size.
DTN Routing Performance Evaluation under Random Waypoint with Base Point Mobility Model
Authors: Wang Yong , Dou Qiang , Peng Wei , Gong Zheng Hu
Published: September 2013

Mobility models are drawing increasing attention since it plays an indispensable role in delay tolerant networks performance evaluation (e.g., routing performance evaluation). Random Waypoint with Base Point (RWPBP) mobility model aims to model the movement characteristics in catastrophe rescue scenario. RWPBP mobility model can represent different movement styles according to different parameters. In this paper, we consider the traffic scenario that all the data generated by the nodes need to be sent to the base point, and evaluate the performance of the five DTN routing protocols (i.e., DirectDelivery, Epidemic, PROPHET, SpayAndWait and FirstContact) under the RWPBP mobility model with different parameters. Epidemic performs best in our experiment, since the traffic is not heavy in catastrophe rescue scenario.
Using VMM and Verification IP to Verify an AHB-Based Design
Authors: Huang Xu , Jun Deng , Liu Lin Tao , Liu Lun Cai
Published: September 2013

This paper describes the use of VMM, Verification IP, and several of the new VMM Applications to quickly develop a verification environment for an AHB-Based system. VIP such as Synopsys DesignWare AHB Master and Monitor transactors enabled generation of valid transaction and ensured AHB protocol compliance. VMM sub-environment were used to encapsulate these components and simplify their reuse in higher level test environment.
Automatic Email Configuration System Using Multimodal Authentication Interfaces for Smartphones
Authors: Kim Tae Jin , Piao Yu Xue , Seo Chang Ho , Yi Jeong Hyun
Published: September 2013

Email services are among the services most frequently utilized by smartphone users. However, setting up a smartphone email service is very frustrating for ordinary users as the process requires knowledge of complicated email server protocols and types of security. To eliminate the inconvenience, a method in which web mail setting information is preconfigured within an app has been applied to representative smartphone email accounts. However, it is not practical nor realistic to store all web mail setting information in the app; furthermore, private server setting information for schools, working areas and so on, has to be separately established by users. In this paper, we propose a system that removes these inconveniences faced when setting up smartphone email services. The proposed system automatically downloads setting information preconfigured on the email server for users.
An Evaluation Method for Information Security Level Based on OWA Operator and Bayesian Network
Authors: Wu Ke He , Ye Shi Chao , Niu Yu Guang
Published: September 2013

Analysis of information security threats in the system elements and assessment process, the decision-maker's subjective judgment threat level information and to obtain an objective evaluation by testing different forms of information and data, it is difficult for a direct threat assessment, proposed based on Bayesian network and OWA operator information security threat assessment model. First, combined with expert knowledge Bayesian network inference rules introduced conditional probability matrix, in order to build an information security threat assessment model. Secondly, based on OWA operator build the expert group decision making information system threat level of the target's subjective judgment information, and as a Bayesian network model of the target information system threat level of a priori information, and objective evaluation of information as a shell Julius observation node network model, which integrates the subjective and objective information security threat level. Finally, a simulation example shows that the model is reasonable and effective.
The Research of Virtualization Emulator Based on Open Shortest Path First
Authors: Tian An Hong , Fu Cheng Biao
Published: September 2013

Computer network is one of the compulsory course for computer professional students, but students are boring for abstract network concepts, in order to improve the innovation of students, a virtual simulation tools named Packet Tracer is introduced into the classroom teaching, which can provide network simulation environment as real life with enough network equipment. This paper presents the configuration example of Open Shortest Path Firs Protocol, and proves the network connectivity simulation results, this is an efficient method for teaching and learning by visual emulator.
Protection Strategy for Two-Stage Cascaded Passive Optical Networks with Various Topologies
Authors: Ju Xiao , Zhao Zhen Yi , Shen Jian Hua
Published: September 2013

PON technology is widely accepted as primary solution in the broadband access networks. Protection is an important issue in PON system while only protection of tree topologies has been studied and other topologies are ignored. This paper presents a comprehensive study on the protection schemes of two-stage cascaded PON with different topologies including tree-tree, tree-bus, ring-tree and ring-bus topologies. The reliability and protection issues were studied using reliability theory and numerical simulations. Results show that ring-bus topology has the best performance.
(7, 4) Binary Hamming Code for Data Transition of Spread Spectrum Communications
Authors: Wen Guo Zhi
Published: September 2013

The theory analysis of the (7, 4) binary hamming coding and decoding algorithm in spread spectrum communication is given and implemented with C language programming. The verification testing is implemented on a HD 111 communication principle platform. The theory results are in consistent with that of the experiment. It shows that (7, 4) binary hamming coding could rectify one error symbol which would emerge in the signal transmission process.
Improving OFDM Carrier Frequency Synchronization Using Cyclic Prefix
Authors: Zhang Ju Peng , Wang Ming Jiang
Published: September 2013

Orthogonal Frequency Division Multiplexing (OFDM) is the key technology of high speed communication systems which are widely used today. Small carrier frequency offset can make OFDM system performance fell sharply. So it needs very effective carrier frequency synchronization to make sure that the system works perfect. Seen from a large number of simulations, typical algorithm requires strict symbol timing. According to this characteristic, we proposed an improved carrier frequency synchronization algorithm using cyclic prefix. The improved algorithm can achieve better performance than typical algorithm in multipath fading channel. The precision of the improved algorithm under the same Signal Noise Ratio (SNR) is about 3 orders of magnitude higher than typical algorithm. We found that improved algorithm has more excellent performance in burst packet transmission mode.
Multipath Effect Analysis of Sea Surface in Maritime Satellite Communications
Authors: Ding Yuan Ming , Sun Jing Jing , Wang Xue
Published: September 2013

Ultra High Frequency (UHF) band is increasingly widely used in military maritime satellite communications due to its good communication performance. When the electromagnetic wave reaches the sea surface, it is reflected. The reflected wave and direct wave enter the receiver in the form of a superimposed vector, which will inevitably produces multipath fading at the receiving end. This paper followed the general principles of modeling in multipath effects, and the UHF band multipath effects of sea surface were studied. The judgment basis was obtained which determines whether the specula reflected wave dominates in the reflected wave based on Rayleigh criterion, and then the reflection coefficient of sea surface were calculated. Finally, the power attenuation of reflected wave relative to direct wave for different wind speeds were simulated and analyzed.
A Software-Based and Dither-Less Modulators Bias Control Technique
Authors: Hao Yan Fei , Zhang Yan Gan , Li Yv Peng
Published: September 2013

A software-based bias control system of push-pull Mach-Zehnder Modulators (MZMs) without dither tone is described in this paper. The slope of the average optical output power respect to the bias voltage is used to control the operating bias points in the automatic control system. The paper analyses the theory of automatic bias control intensively and verifies the effectiveness of the proposed technique which is a modulation-format-free method under the RF signal through testing and contrasting the BER (bit error rate) between the new technique and manual measure on the experimental platform.
The Bidding Strategy Research of Radio Spectrum User Auction Based on the Partial Distribution
Authors: Wan Xiao Yu , Liu Bo
Published: September 2013

In the spectrum auction, bidding strategy of telecommunication operation enterprise is very important. Considing the telecommunication operation enterprise how to choose the optimal bidding strategy as the train of thought. According to the spectrum of value distribution characteristics to the enterprise, using incomplete information static game theory to construct the operating enterprise bidding game model based on the partial distribution, and obtained model’s Nash equilibrium through the simulation with numerical solutions of the form. At the same time, the equilibrium analysis found: enterprise’s valuation central tendency or fluctuation can positive motivate its equilibrium bid; Along with the enterprise central tendency of valuation and fluctuation amplitude of valuation increasing ceaselessly, increasing unit valuation incentive equilibrium bid increment continuously increase.
Exploring the Context of Pioneer Missionary in Northern Taiwan by Analyzing George Leslie Mackay's Diary
Authors: Wang Leuo Hong
Published: September 2013

George Leslie Mackay (1844-1901), the first Presbyterian missionary to northern Taiwan, is considered to be one of the most important persons who influence the development of education and medicine in Taiwan. Recently, the manuscripts written by Mackay which detailed his work from 1871 to 1901 in Taiwan have been computerized and published as Mackays diaries. Researchers who are interested in historical topics concerning religious, educational and medical development in Taiwan hence concentrate their attention on these materials. However, little research applied computational techniques to analyze the content of the diaries. That motivated us to apply text mining techniques to explore the content of diaries. The content analysis methodology was used in this research to unveil the context of Mackays missionary work in northern Taiwan. Finally, the context was presented by data visualization techniques.
Study on the Theory and Standardization of Smart Sensing for Internet of Things
Authors: Yang Bo Xiong , Liu Kun , Ni Yu Hua , Peng Yu Fan
Published: September 2013

The term Internet of Things appears to have been coined by a member of the RFID development community circa 2000, who referred to the possibility of discovering information about a tagged object by browsing an Internet address or database entry that corresponds to a particular RFID. RFID and sensor networks are likely to become much more capable and pervasive in the world of IOT. Firstly, the tag and reader function of RFID system are introduced. Secondly, the relationship between the two parts of RFID system is described in the paper. Finally, the standardization of RFID EPC global application system is studied, and the architecture of EPCglobal analyzed.
Research and Development of an Online Video Network Platform Based on the Streaming Media Technology
Authors: Li Kan Yong , Yang Ling Jun , Cao San Xing
Published: September 2013

The streaming media technology can effectively break the bandwidth bottleneck and make video/audio streaming pass through the internet smoothly. A video network platform based on the streaming media technology can well satisfy the user's requirements. This paper gives an introduction of the streaming media content type and streaming protocols. It also designs a video network platform based on B/S mode using the streaming media technology with the background management function.
A Critical Ontological Approach to Deconstructing the Kaleidoscopic New Literacies in Digital Era
Authors: Ruan Quan You
Published: September 2013

This paper argues that the current productive and multidisciplinary study in new literacy/literacies in digital era has lead to a complex situation full of kaleidoscopic terms and concepts, thus is in need of further exploration. Based on a critical ontology-based modeling and 5W1H maxim, the author proposes a 5-Ps framework to deconstruct and re-examine new literacy/literacies from five perspectives: Platform, Participant, Potential, Position, and Praxis. It is expected that this framework can help people to analyze and understand new literacies in study of electronics, computer, information technology as well as social sciences.
LPV Modeling and Performance Analysis of Boiler Drum Using IMC-PI Controller
Authors: Vijayalakshmi S. , Manamalli D.
Published: September 2013

This paper presents the development of linear parameter varying model and control strategy for Industrial boiler drum. The Boiler drum is modeled using the fundamental mass and energy balance equations and data collected from the real time plant. Based on the open loop response of the Boiler drum, the whole non-linear process is split into 4 approximate linear regions and their respective transfer function models are formed from the input-output data. Since the process is nonlinear in nature, linear transfer function models are developed in each operating regions and they are interpolated to obtain the linear parameter varying model. The LPV model is validated using the real time data. Since a single PI controller for whole process does not satisfy both servo and regulatory performance, a multi-model approach with four PI controllers is implemented for the process. Internal Model Control ( IMC)-PI controller is designed to analysis the servo and regulatory performance of the developed LPV model.
A Standing Wave Piezoelectric Ultrasonic Motor Using a Single Flexural Vibration Ring Transducer
Authors: Shafik Mahmoud , Makombe L.
Published: September 2013

This paper presents a rotary standing wave ultrasonic motor using single flexural vibration ring transducer. The motor consists of three main components, the stator, rotor and housing unit. The stator is a piezoelectric transducer ring. The rotor is designed of a compact driving wheel and shaft. The housing unit is made of a transparent thermoplastic Perspex material and is part of the motor working mechanism. The motor design, structure, working principles and modelling using finite element analysis is discussed and presented in this paper. A prototype of the motor was fabricated and its characteristics measured. Experimental tests showed that the motor electrical working parameters are: Current: 100 m-amps, Voltage: 100 volts, Frequency: 41.7 kHz, typical speed of 32 revolutions per minute, a resolution of less than 50μm and maximum load of 1.5 Newton.
An Innovative Tactile Interactive Interface Graphical Display for the Visually Impaired Information Technology Access Applications
Authors: Shafik Mahmoud
Published: September 2013

This paper presents an innovative tactile interactive interface graphical display for visually impaired people, information technology (IT) access application. The display consists of matrix of dots. Each dot is an electro rheological fluid micro actuator. The micro-actuator designed based on linear vertical movement principles. The actuator design and development process is presented in this paper. An advanced software tools and embedded system based on voltage matrix manipulation are developed to provide the display near real time control. Prototype size 124x4 dots, on a matrix form, of 2.54mm pitch, was manufactured. The experimental tests carried out into the prototype showed that each actuator of the matrix was able to provide a vertical holding force of 100 to 200 mN and vertical movement of 0.7 mm. The stroke and dynamic response tests showed the practicability of the developed micro actuation system, for tactile display IT access applications.
A Phase Locked Loop Method for Low Voltage Ride-Through Control in Three-Phase Three-Wire Photovoltaic Grid System
Authors: Ding Bao , Zhang Gong , Zhang Yong Ming , Zhao Liang
Published: September 2013

Low voltage ride through (LVRT) is regarded as one of the biggest challenges in photovoltaic grid equipments designing, manufacturing and control technology. The fast and accurate automatic phase locked control is the premise to achieve photovoltaic grid low voltage ride through. Considering that the traditional phase locked loop method is difficult to adapt the performance requirements of low voltage ride through (LVRT) in three-phase three-wire photovoltaic grid system, this paper presents a new three-phase unbalanced phase locked loop method. Improved second order generalized integral orthogonal signal generator (SOGI-OSG) is used for line voltage detection; Synchronous reference frame for phase locked loop (SRF-PLL) is used for line voltage phase locked and phase angle detection; Heron formula and Sine theorem is adopted to calculate the three-phase phase voltage amplitude and phase angle. Research results show that when grid voltage dips, this phase locked loop method can detect the fault signal accurately. It provides a technical support for photovoltaic grid low voltage ride through system.
SDRE Based Integrated Roll, Yaw and Pitch Controller Design for 122mm Artillery Rocket
Authors: Siddiq Muhammad Kashif , Fang Jian Cheng , Yu Wen Bo
Published: September 2013

State-dependent Riccati equation (SDRE) based controller design is an emerging trend in real world applications. This paper describes the design of an integrated roll, yaw and pitch attitude controller for a fin stabilized and canard controlled 122mm artillery rocket using SDRE technique. The rocket configuration considered is with front canards and foldable straight tail fins, and is given initial spin at the time of launch. Tails fins are deployed immediately after launch and offer high roll damping moment thereby reducing the spin rate to zero within six seconds of flight. The canards are then deployed and the roll orientation of rocket is regulated to zero with the canard deflection commands generated by the SDRE based roll autopilot. Once the roll orientation of rocket is brought to zero, the full state integrated roll, yaw and pitch autopilot comes into action. Elements of the state weighing matrix for Riccati equation have been chosen to be state dependent to exploit the design flexibility offered by the Riccati equation technique. Simulation results show significant reduction in impact point dispersion with the attitude controlled trajectory as compared to uncontrolled trajectory. Monte Carlo simulations have been performed to prove the efficacy of the proposed controller design even in the presence of wide range of deviations in rocket parameters.
The Functional Design on Fault Recorder of μC/OS-II-Based Intelligent Substation
Authors: Zhang Yi Hui , Hu Wen Qiang , Liu Shi Ming , Wang Hua Bing
Published: September 2013

Regarding the functional requirements for smart substation in fault recorder, this paper introduced μC / OS-II, an embedded real-time multitasking operating system as the functional design. The program works with the embedded operating system, the state machine theory and new methods for embedded development, whilst tasking full use of the advantages of such functions as task scheduling, message queues, etc., aiming to achieve a fault recorder function of intelligent substation. More than taking care of the difficulty of programming, it could improve the program reliability and portability. The program has been applied in an intelligent substation protection in centralized control unit, which has brought back a good fault recorder performance. On this basis, more functions can be integrated, including network log analysis, state estimation, etc., in order to truly meet the application requirements of the smart substations.
Fault Test Equipment of Launcher Control System Based on Embedded System
Authors: Li Huan Liang , Yang Xiao Qiang , Han Jin Hua , Wang Dan
Published: September 2013

The fault test equipment of mine launcher system is developed. This equipment is divided into two functional parts: master controller, an industrial processing computer and corresponding application software, which mainly engages in human-machine interactions, controlling the testing process, diagnosing the fault as well as display the output, and slave controller that performs data acquisition, signal conditioning, connection and transformation. Its hardware is composed of main control circuit with two complex programmable logic device (CPLD) chips, signal conditioning circuit, serial interface module and dedicated interface adapter unit. In addition, the application software of master controller is modular and object-oriented and developed by LabWIEW. The slave controller software is developed in VHDL that performs sampling and configuration of firing control and configuration signals. And the software consists of the five key modules: baud rate generator, enable module, pulse signal count module, data acquisition module of high level signals and communication module. Thus the equipment actually provides effective technical method in improving the repair and support skills for the mine launcher control system.
Development of Master Control System for Direct-Drive PMSG Wind Turbine Based on ARM Controller
Authors: Wen Chun Xue , Wang Liang
Published: September 2013

Abstract: The direct-drive PMSG wind power has been widely used in small and medium-sized wind power. The master control system is core of the control system. In the Small wind power systems, the control system requires both stable and reliable operation, but also to minimize power consumption and cost. With the study on the existing technology of wind power main control system and on the basis of the existing science and technology accumulation, this paper proposed research program based on ARM and Linux embedded wind generation master system.The master control system developed in this paper has the following advatages:more automated,more accurate, simple and direct, low cost, low power consumption, easy to maintain, make the work more stability.
Analysis for Power System Transient Harmonics Based on Wavelet Packet Transform
Authors: Liu Rong Hui , Pan Ai Qang , Yang Xiu
Published: September 2013

In this paper, the principles of wavelet transform and wavelet packet transform were presented. The wavelet packet transform had good characteristics of uniform frequency decomposition, and thus transient harmonic analysis method was proposed based on wavelet packet transform. Finally, transient interharmonic, time varying harmonic and transient oscillation signals in power systems were simulated with Matlab emulator. The perfect results of simulation show that the presented method can accurately detect the transient harmonics, which provides support for harmonic analysis in power systems.
Robust Adaptive Fuzzy Control for Robot Manipulator with Uncertain Dynamics
Authors: Chen Yuan , Bi Yun Jun , Gao Jun
Published: September 2013

A robust adaptive fuzzy control scheme combined with an adaptive fuzzy control algorithm and H∞ control model is proposed for the trajectory tracking control of robot manipulator with structured and unstructured uncertainties. The adaptive fuzzy control algorithm is employed to approximate structured uncertainties, and the nonlinear robust H control model is designed to eliminate the effect of the unstructured uncertainties and approximation errors. The validity of the robust adaptive fuzzy control scheme is demonstrated by numerical simulations of a two-link rotary robot manipulator.
Research of Optimal End Guidance Law about Homing UAV
Authors: Wan Shao Song , Cao Jian , Yan Cong
Published: September 2013

This paper researches optimal end guidance law about homing UAV. After building mathematic model, simulation results show that optimal end guidance law (OEGL) attacking fixed targets is superior to constant coefficient proportion guidance law (CCPGL).
Based on IDRISI Remote Sensing Images Land-Use Types of Supervised Classification Techniques
Authors: Zhang Kun , Wang Hai Feng , Li Zhuang
Published: September 2013

With remote sensing technology and computer technology, remote sensing classification technology has been rapid progress. In the traditional classification of remote sensing technology, based on the combination of today's technology in the field of remote sensing image classification, some new developments and applications for land cover classification techniques to make more comprehensive elaboration. Using the minimum distance classifier extracts of the study area land use types. Ultimately extracted land use study area distribution image and make its analysis and evaluation.
An Opposition-Based Modified Differential Evolution Algorithm for Numerical Optimization Problems
Authors: Xia Hong Gang , Wang Qing Zhou
Published: September 2013

In this paper, a new opposition-based modified differential evolution algorithm (OMDE) is proposed. This algorithm integrates the opposed-learning operation with the crossover operation to enhance the convergence of the algorithm and to prevent the algorithm from being trapped into the local optimum effectively. Besides, we employed a new strategy to dynamic adjust mutation rate (MR) and crossover rate (CR), which is aimed at further improving algorithm performance. Based on several benchmark functions tested, the OMDE has demonstrated stronger convergence and stability than original differential (DE) algorithm and its two improved algorithms (JADE and SaDE) that reported in recent literature.
A Mixed Noise Filtering Algorithm for High-Speed Sequence Image Processing
Authors: Yang Yan Zhu , Liu Wei Liang , Chen Neng Jie , Zhu Wei
Published: September 2013

t is a effective means by using high-speed vision to locate mobile targets. Under the circumstance of high frame rate and high sensitivity (300Hz), in addition to the Gaussian noise and impulse noise, the image quality is also influenced by atmospheric instability, and it is mainly expressed as Gaussian noise. An improved adaptive threshold weighted mean (IATWM) de-noising algorithm is proposed in this paper. According to the characteristics of impulse noise, the algorithm is able to obtain the threshold adaptively and separate the impulse noise. Then, the weighted median filtering algorithm is used to remove the impulse noise. And the improved weighted average filter algorithm is adopted to remove the Gaussian noise for graphics with Gaussian noise. The algorithm could deal with the Gaussian noise and impulse noise separately, avoiding the weaken handling for the parts not subject to pixels pollution of the impulse noise. The experimental results show that the processing result of the algorithm is able to retain the image details, superior to the traditional filtering algorithms and MTM algorithm. In addition, the algorithm provides an effective way to eliminate the mixed noise, along with a good effect on the high-speed sequence image processing.
Solving Multi-Instance Visual Scene Recognition with Classifier Ensemble Based on Unsupervised Clustering
Authors: Wang Ying
Published: September 2013

This paper proposes a new image Multi-Instance (MI) bag generating method, which models an image with a Gaussian Mixed Model (GMM). The generated GMM is treated as an MI bag, of which the color and locally stable invariant components (SIFT) are the instances. Agglomerative Information Bottleneck clustering is employed to transform the MIL problem into single-instance learning problem so that single-instance classifiers can be used for classification. Finally, ensemble learningis involved to further enhance classifiers generalization ability. Experimental results demonstrate that the performance of the proposed framework for image recognition is superior to some common MI algorithms on average in a 5-category scene recognition task Key words:Multi-Instance Learning; Gaussian Mixed Model; AIB Clustering; image modeling; Single-Instance Bag; Ensemble Classifier; Scene Recognition
An Improved Differential Evolution Algorithm for Numerical Optimization Problems
Authors: Zhao Hong Wei , Xia Hong Gang
Published: September 2013

Differential evolution (DE) is a population-based stochastic function minimizer (or maximizer), whose simple yet powerful and straightforward features make it very attractive for numerical optimization. However, DE is easy to trapped into local optima. In this paper, an improved differential evolution algorithm (IDE) proposed to speed the convergence rate of DE and enhance the global search of DE. The IDE employed a new mutation operation and modified crossover operation. The former can rapidly enhance the convergence of the MDE, and the latter can prevent the MDE from being trapped into the local optimum effectively. Besides, we dynamic adjust the scaling factor (F) and the crossover rate (CR), which is aimed at further improving algorithm performance. Based on several benchmark experiment simulations, the IDE has demonstrated stronger convergence and stability than original differential (DE) algorithm and other algorithms (PSO and JADE) that reported in recent literature.
Analysis on Building Information-Based Platform in University Health Education
Authors: Zhou Qiang
Published: September 2013

Through the purpose of health education and the concept of educating people, this paper analyses the core philosophies that educate people to foster health awareness and to develop good exercise behavior lifestyle. On this basis we build the platform for a health education information system. In the macro view a comprehensive and efficient integration of health education resources for colleges and universities is an innovation to the traditional health education system and is a true necessity to learn because of the need of the principles of individualized education. A conclusion is drawn that in establishing a college health education information system platform could provide reference for the college education of future information technology and provide effective information security reference for China's reform and development of health education. It could improve the quality of comprehensive health education colleges and enhance the level of health education in management and decision-making in colleges and universities.
Serial Communication and Data Processing Based on Laboratory Virtual Instrument Engineering Workbench
Authors: Ning Bo , Wang Xu Sheng , Ma Wen Biao
Published: September 2013

Laboratory Virtual Instrument Engineering Workbench is a graphical programming software exploited by NI company with powerful real-time data processing and analysis functions. The paper focuses on the thread for designing and main function of serial communication module based on Laboratory Virtual Instrument Engineering Workbench and describes the function and use of the VISA function in Laboratory Virtual Instrument Engineering Workbench. Experiments show that the serial communication module is convenient, powerful, and of good portability and scalability.
The Submarine Rescue Command Simulation Training Information System Based on the HLA
Authors: Hu Pei , Hao Qian , Du Yi
Published: September 2013

It is the key point which establishes a new rescue system for guarantee Chinese naval submarine operational capability. As new rescue vessel and various rescue equipment put into use in succession, and company with the military academies training reform, the author puts forward the construction of the new submarine rescue command simulation training information system based on the HLA(High Level Architecture) in this paper. It introduces the system construction situation, including system functions, constitutes and working principle, and analyses the key technology point. It is also given a virtual scene of submarine rescue command operation based on data driven.
Cloud Computing-Based Rehabilitation Services Information System
Authors: Chen Xiao Hua , Ma Yun Long , Zhang Guo Feng , Liu Bo
Published: September 2013

This paper, aiming at solving the difficulties of data sharing, mass data processing and others, brings up the cloud-computing-based rehabilitation services system, which is composed of three layers: the core services layer, services management layer and user access interface layer. It also puts forward the MapReduce parallel computing algorithm to solve the mass data processing problems in the system. Through the system, the superior resources can be integrated and deployed collaboratively to realize data sharing and high-speed processing of mass data. In Part 4, the application cases are presented. The establishment of cloud-computing-based rehabilitation services information system is a significant try for the application of cloud computing, and will serve as a meaningful reference for the development of rehabilitation services in China.
Research on Air-to-Air and Air-to-Ground Combat Embedded Training System
Authors: Zhang Ning , Ma Xiao Xiao , Rong Peng Hui
Published: September 2013

Combat training used real equipment such as weapons are with many risks and cost high, and ground simulator cant provide real flight experience and real cockpit with training mission. The most effective training method to training fighter pilot is built a virtual battlefield by Embedded Training System (ETS), it takes the training advantages of using real aircraft and ground simulator. A training system used for air-to-air and air-to-ground combat training is proposed and designed, the pilot could enhanced the skill of using various weapon and gain experience of confront threat/target through training in EST.