bluuebunny/crossref_metadata_2025 huggingface dataset:
Design of Computer Information Network Security System
Authors: Dong Li Na
Published: August 2014

With the increasingly advanced computer information network, a great convenience for people's daily work and life at the same time, the network security problem arises. Network security is not only related to the enterprises, institutions and social groups, network information security, is also related to the national security and social stability, Involves many disciplines of computer science, network technology, communication technology, security technology and techniques. Solve the problem of computer network security has become the most important research topics in the field of computer science. Starting from the characteristics of the computer information network security and network security factors, a network security system designed set includes virus protection, dynamic password authentication, firewall access control, information encryption, intrusion detection and other protective measures for our computer the improvement and development of the information Network Security provides a useful reference.
Research on Code Separation Technology in B/S Framework
Authors: Li Liu , Zhang Guo Fei , Peng Tang
Published: August 2014

As the most widely used B/S framework Management Information System in Microsoft .NET technology, the realization of code separation technology gives full play to the advantages of interface design and code design. Especially the code separation technology of ASP.NET makes the dream of web programmer for many years into reality the separation of page design and code design. Combined with code separation technology methods and technical realization, the paper discusses the application and research of code separation technology in B/S framework based on the application and research of code behind, user control and custom control.
Coverage Model of Wireless Network Based on Computer Virtual Simulation
Authors: Xiao Yan Ling , Guo Hui
Published: August 2014

On the basis of multimedia digital display technology, combined with wireless network three-dimensional global control, we design a computer virtual simulation system of low carbon tourism scenic spot. And we use the wireless network device WG511, WG311, WG111 and PDA to cover the whole low carbon eco tourism scenic spot. In order to test the availability and reliability of the wireless network coverage model, we test the performance of wireless networks, and obtain the three-dimensional distribution map of signal strength and contour of wireless signal. Through 3D capture on the scenic tour key point, we realize the three-dimensional reconstruction of low carbon sustainable ecological landscape, which provides technical support for the design of the scenic tour landscape.
Three-Dimensional Modeling and Simulation Analysis of the Outer Planets Cycloid
Authors: Li Lin , Shan Chang Ji , Bian Yi Duo
Published: August 2014

Very complicated as the cycloid wheel movement appears, tridimensional software Solid Works is applied to outer planetary cycloid wheel parts modeling and dynamic simulation with the outcome meeting the prospective design requirements. Therefore, we conclude that tridimensional modeling will be applicable for mechanical designing with great significance. In response to increasingly complicated product designing, the roles of the tridimensional modeling approach will be brought into fuller play. In pin-cycloid gearing, due to the specially curved and differential gear surface, the gearing accuracy and service life of the pin-cycloid are both affected. To get a smooth solution to the problem of the tridimensional surface shaping, priority shall be given to precise drawing of the gears profile curve [.
Implementation of Lightweight BHO Hijack Technology for Online Behavior Monitoring
Authors: Wang Jin , Yin He , Ling Yan
Published: August 2014

With the increasingly wide range of Internet applications, Internet behavior monitoring aroused widespread concern. With BHO hijacking techniques to build an efficient monitoring system, not only can achieve real-time monitoring online behavior, but also has a lightweight characteristics, not only that, but also be able to effectively shield the site or filtered, to avoid unauthorized users from bad web , but also effectively prevent the illegal intrusion of the Web page. In the system design process, the application, the application of advanced signal report have both modular design strategy, so that the system has relatively broad applicability and can be private users, the user unit may be, in addition, the system In the communication efficiency is relatively good. In short, the Internet behavior of the monitoring system has won the people's widespread recognition.
Design of Employment Management Platform Based on ASP.NET
Authors: Shi Hong Jun
Published: August 2014

This article from the employment team, market, courses, services, information and assessment evaluation to explore college graduates and high-quality employment platform built. therefore, research-based Net development of university employment information management system, to improve university employment management information and improve the efficiency and quality of this work.
Cyclic Structure in Regenerating Codes
Authors: Liang Wen Juan , Du Ying
Published: August 2014

Regenerating codes are a class of erasure codes for distributed storage. The use of regenerating codes not only improves reliability of distributed storage systems, but also minimizes repairing bandwidth when storage nodes failed and need to be repaired. In this paper, we investigate the cyclic structure of hybrid regenerating codes which each node has two fragments with the first fragment stores original message and the second fragment stores parity message. A fast repairing algorithm is also proposed.
Research on Intelligent Information Search Based on Web
Authors: Zhang Yu Si , Liu Liu , Zhang Ti Yong
Published: August 2014

This paper analyzes the deficiencies of the existing Web information extraction methods and reasons, and put forward the page text information extraction method based on multi-feature fusion. Compared with previous methods with a small selection of features, the method in this paper determine the choice of a variety of information via text features, better able to adapt to a variety of styles page. By comparing the experiment, this method has higher accuracy to meet practical application needs in the Web Content Extraction.
Design of Information Management System Based on WEB
Authors: Xin Xiang
Published: August 2014

This paper mainly design B/S system structure and small information management system that often appear some problems of college student information management, combines the actual situation of students and student instructor management work. In the process of the development of the whole system, the main use of Microsoft.NET technology as a whole system of compiler environment, SQL Server 2000 is used in the design of backstage supporter's database, were developed and designed by Visual Studi02005 tool, in exchange for page dynamically selected by the ASP.NET database and system interface between Webpage generation. This system has high reliability, high security, low input, so that the efficiency of information management students to improve.
Architecture and Technique on Internet of Things
Authors: Guo Xie Chao
Published: August 2014

The present era is an information and Internet age, with peoples life more and more inseparable from it. Through the network platform, we can study, do some reading and shopping. There appeared a new term Internet of Things after the time of Internet. Different from network, it is a kind of information technology, has driven the development of network and is the trend for the future network, so its architecture and technical research attach great importance to the all fields. This paper analyzed the problems in the aspects of architecture and techniques.
Analysis on Adjusting Effect and Spectral Characteristics of Digital Image Sampling
Authors: Liu Hai Ying
Published: August 2014

When it comes to the digitized image, it is a process of converting analog image of continuous tone which has been sampled and quantized into digital image. The application of digital technology in modern art has become one of the hot spot in this field. First of all, this paper undertakes the digital image process of image. According to the filtering properties of the Dirac function, this paper analyzes the two-dimensional sampling principle of digital image. Based on this, the relationship between image spectrum before sampling and after sampling is compared and analyzed according to the related properties of Fourier transform. And then it is obtained that it is concluded that the ideal low-pass filter can make the sample undistorted. By further analyzing the error of the sampling value quantification processing, the rebuilt best quantitative values of image can be obtained. Thats to say, the reconstruction of digital image is the inverse process of image sampling. To a certain extent, it provides scientific theoretical basis for the integration of digital image in modern art design.
Three Dimensional Numerical Simulation and Signal Processing Method of Moving Objects in the Change of Gravity
Authors: Zhang Jun
Published: August 2014

Based on the three-dimensional rotating coordinate mathematical model, this paper has established the mathematical equations for the principal moments of inertia, the centroid position and the center of gravity position. In order to validate the validity and reliability of this mathematical equation model, the paper designs the three-dimensional virtual simulation system of changes in the center of gravity during the process of computer tennis player. And it analyzes the performance of this system through the prediction of the center of gravity position of athletes. Through the computer GMM technology, we carry out the probability and statistics for the boundary of gravity position path and have obtained the GMM gravity statistical plane distribution map and three-dimensional distribution map. According to the distribution map, we obtain the change table of the gravity and the centroid position. It has been introduced to guide the movement training of tennis players, which has provided technical reference for tennis players training.
Sensor Node Design and Building of Multimedia Network in Smart Home
Authors: Deng Chao
Published: August 2014

With the requirements of multimedia service increasing in people's life, sensor modules such as microphone, camera are added in the smart home's sensor network, and the acquisition and processing of a large amount of information media such as audio, image and video is becoming a significant characteristics of smart home. The paper focuses on solving the following technical problems: the building of Zigbee multimedia network, the Design and selection of multimedia sensor node. These provide the basic network platform and the core technical support for the building of smart home.
Research of Development of Embedded Systems
Authors: Jiang Zi Li
Published: August 2014

With embedded systems widely used and the continuous improvement of the user to the data processing and management needs, a variety of smart devices and database technology are tightly combined, this has got integrated attention. Embedded system is dedicated computer system that is application-centric, based on computer technology, software and hardware can be tailored to meet the stringent requirements of the application system, which strict with functionality, reliability, cost, size and power consumption. It is the product of the development of computer technology, now it has become an important part of the computer field. The embedded database will be in everywhere in the near future. Looking at the current international and domestic embedded database application, market has entered a stage of accelerated development based on embedded database applications.
Design of Methane Fermentation Environmental Factor Detection System Based on ZigBee
Authors: Zou Zhi Yong , Zhou Man , Xu Li Jia , Kang Zhi Liang , Liu Ming Dan
Published: August 2014

To solve the problems of the environmental factor detection and data management in the methane fermentation, this paper proposes a design based on ZigBee and PDA technology. Sensor node with CC2530 as the core can implement detection of oxidation-reduction potential, PH value, temperature, and liquid level. Coordinator node adopts ARM11 and is designed to be a PDA form, which is flexible and easy to use. On the basis of the analysis in ZStack protocol stack, the sensor signal acquisition program is accomplished. Customize wince6.0 embedded operating systems, and transplant an embedded SQlite database for powerful data management features. By using serial communication and multi-thread communication strategies, the Zigbee network data acquisition, acquisition cycle settings, power mode settings, and time synchronous adjustment can be accomplished. As the result of the test, the average packet loss rate of the network transmission is 0.375%. The data comparison charts of sensor nodes with standard instrument detected in continuous 24h are essentially coincident, and it indicates that the sensor circuit has been designed properly, and ZigBee network data transmission is stability, so it can meet the actual requirements of applications. Meanwhile, the system is easy to extend for different scale methane engineering application.
The Design and Realization of Network Remote Control Based on ARM9 and VC6
Authors: Ma Qin
Published: August 2014

For solving the control problem of network remote control, introduce a design method of network remote control which can realize the remote control equipments by PC and mobile telephone short message,such as smart home electrical. The paper give the home networks model and describe the software and hardware design of embedded gateway and its control method to electrical equipments in detail.The test result indicates that the capability of this system is stable and dependable, and validates this scheme.
Fault Detection Expert System of Elevator Control Cabinet Based on LabView
Authors: Yang Bao Gui
Published: August 2014

An expert testing system of elevator control cabinet was developed based on LabView, for resolving the difficulties on elevator testing and elevator fault troubleshooting. With fault tree analysis algorithm, manual knowledge obtaining method was used, and forward reasoning strategy was employed for locating the possible reason of the system fault quickly and exactly. The system was modularized to reduce the complexity of the program. The graphical interface was programmed by LabView to improve human-computer interaction ability. The results indicated the expert system can be applied to system fault detection well and improve the efficiency of elevator troubleshooting.
Applied Research of Cloud Computing in the Tool Radius Compensation Discrimination of Numerical Control Programming
Authors: Zhao Xiao Jun
Published: August 2014

The cloud computing can allocate computer resources according to customers different demand dynamic status, which has improved the calculation efficiency, and saved the cost of hardware. This paper establishes the 3D mathematical model of data programming tool radius compensation system, and gets the tool radius compensation control equation according to the interpolation function. It designs the tool radius compensation discrimination system with the combination of UG software. In order to verify the validity and reliability of the system, the paper takes the processing process of leaf as an example to design the tool radius compensation algorithm, and the compensation deviation has been made numerical simulation, which has obtained error compensation curve and tool radius compensation parameter table. It can obtain reasonable tool compensation cutter and cycle according to the input of tool parameters, which provides technical support for the research of numerical control (NC) machining technology.
Research on Automatic Cleaning Robot Based on Machine Vision
Authors: Pan Zhi Guo
Published: August 2014

The development and application of the machine vision technology is greatly liberating the human labor force and improved the production automation level and the situation of human life, which has very broad application prospects. The intelligent empty bottle inspection robot this paper studies is a typical application of the machine vision in the industrial detection. This paper mainly introduces the concept of machine vision, some important technology related to automatic cleaning robots and application of the machine vision in the production of all areas of life.
Study on the Traditional Architectural Elements in Alishan Tsou Tribe
Authors: Li Xiao He , Dong Jian Wen , Lan Si Ren
Published: August 2014

In the current construction status of Taiwan Alishan Forest Recreation Area in the Tsou tribe's culture on the basis of the Tsou traditional architectural elements were refined, and the Tsou tribe cultural and architectural design of the built environment were studied in detail. It discusses the use of traditional architectural elements methods in the area of architectural design, in order to provide reference for the design and construction practice scenic continent.
Application of the Intelligent Building Materials in the Green Energy-Saving Buildings
Authors: Zhang Yan Min , Yang Zong Liang
Published: August 2014

In this paper, the author points out the deficiency and a deviation of the construction of the present intelligent buildings, puts forward the extension and connotation of the intelligent buildings, further discusses the intelligent building materials as a means, and specifically summarizes the forms of a variety of intelligent building materials, such as the concrete, paint, glass and other aspects.
Prediction of Blasting Vibration Velocity by BP Neural Network
Authors: Zhang Guang , Yang Yi Wen , Liu Zhi Jun , Wang Jing
Published: August 2014

In order to ensure the success of the blasting projects, accurate prediction of blasting vibration is necessary. However, blasting vibration is affected by different blasting conditions. The paper analyzed the impacts of the conditions to vibration, and built a blasting vibration velocity prediction model based on BP neural network. Comparing the predicted results with measured data, there has good correlation between them; it can be well applied to predict blasting vibration velocity.
Study on Energy-Saving Technology and Design Optimization of Facade in Cold and Severe Cold Area
Authors: Li Wei , Zheng Xin
Published: August 2014

This article take cold regions of rural residential building envelope as the research object, suitability technical theory as the theoretical basis, we evaluation of rural residential energy envelope because China's rural areas is characterized by large regional differences and to find a solution for the envelope. It could be considered as the useful reference for retrofit design of similar projects.
Preparing and Sphericizing Ultrafine Graphite Particles with Stirred Mill
Authors: Zhang Ling Yan , Qiu Yang Shuai , Hong Wei , Deng Cheng Cai
Published: August 2014

The ultrafine graphite particles was prepared and sphericized by stirred mill. By the conditional tests, the influences of the main operation parameters, such as ball-to-powder weight ratio, grinding concentration, dispersant dosage, agitator speed on grinding efficiencies of stirred mill were studied systematically .The reasons of the influence was analyzed. The study results offered suitable operation parameters for practical production. The scanning electron microscope (SEM) was employed to investigate the structure of the ore sample. The result showed the sphericity of product was improved than the raw material.
Dynamic Vehicle Scheduling with Time Windows Model and Optimization
Authors: Wang Rui , Guo Ning
Published: August 2014

The logistics vehicle scheduling optimization is a hot issue in the field, and its research can greatly reduce transportation costs, and meet the different needs of the logistics supply chain to the maximum extent, and to promote the improvement and development of logistics management has a very important significance and broad application prospects. In recent years, scholars of domestic distribution vehicle scheduling optimization study outcomes were systematically organize, and commentary from many aspects of the models, algorithms, research methods, and discusses some of the problems and prospects for future research direction.
Diagnostic Analysis of Ignition System Fault of Polaris Engine
Authors: Chen You Peng
Published: August 2014

This thesis gives an introduction of the structure, working principle, main performance and some relevant parameters of Polaris AGN engine ignition system. It illustrates the various faults, reasons, fault detection, diagnosis and removal methods of ignition system, and cites a fault diagnosis example for the reference of automobile maintenance.
Linear Regression Analysis Between Core Stability and Jump Shot
Authors: Huang Bo
Published: August 2014

Thirty five healthy college male students have been recruited in this study and each of them carried out a jump shot and a core stability test. After comparing and analyzing the test results, this study came to the findings as follows: (1) the correlation between core stability and jump shot is significant (R=0.719, p=0.000<0.05).it demonstrated that the core stability of basketball player play an important role on the jump shot ability, and (2) In order to improve the jump shot ability, the core muscle strength training, for example the basic push up, V-sits, squats, back bridge, hip lift, etc. should be designed in the training.
Research on Computer Information Processing Technology Based on Signal Autocorrelation Domain
Authors: Mao Zhan Yang
Published: August 2014

The paper establishes signal correlation processing mathematical model according to Ordinary differential equations with boundary value, which is introduced into the analysis on basketball virtual simulation sliding technique, and it designs the signal autocorrelation computer processing system. In order to verify the reliability and practicality of the system in the basketball technology analysis, this paper extracts the temperature signal using the FLUENT software, it obtains the isotherm diagram and temperature distribution cloud picture, verifies the effectiveness of the system. Finally, it verifies the practicality system in basketball technology analysis, taking analysis of back gliding speed rhythm of basketball as an example, and it gets the basketball shuffle rhythm control 3D signal response curves, which provides technical reference for basketball players.
Behavior Based on Product Concept Learning
Authors: Song Xiao Qing , Sun Xi Xiang , He Yan Yan
Published: August 2014

Form consumer learning perspective, a theoretical analysis of the structure of brand knowledge is gave. Product concepts will be transformed into knowledge nodes, association links and affective response which are stored in consumer memory. Consumer brand knowledge is composed of brand awareness, brand image and brand attitude. Data are collected from questionnaire. The structure of brand knowledge is confirmed by exploratory factor analysis. Form a binary logistic regression analysis of brand knowledge and consumer purchase behavior, it found that brand attitude is the main factor to predict and explain the purchase behavior based on product concepts.
Research on Digital Industrial Design System
Authors: Yang Qin
Published: August 2014

This paper presents innovation design method of product on basis of the typical theory of new product development and research of the process and industrial design in the different phases of the product development function for small and medium enterprises in China's. On this basis, the paper put forward to ensure full participation in industrial design and play the role of segmented flow, determine the objectives and tasks for each stage of development, the personnel involved in the coordination method, steps and related links. In addition, we studied the evaluation system of product development, according to the stage characteristics of new product development process for enterprise, using different evaluation methods, established the overall evaluation system of industrial design process model.
Internet Industry Cluster Design Based on PDE Mathematical Model
Authors: Huang He , Xiao Hui
Published: August 2014

The industrial cluster is formed by the common competitiveness elements of enterprise group. Under the cluster environment, common technology and common customer as well as distribution channel are composition of cluster development performance mode. On the basis of the parabolic PDE cluster development model, and combined with Internet industrial cluster analysis of virtual platform, the Internet structure industrial cluster analysis system is designed. In order to verify the validity and reliability of the model and system, this paper takes the cluster development of machining as an example to carry on the research for the system performance, which can get the virtual grid node and stress distribution of cluster processing center, finally we can obtain the industrial cluster investment and performance relationship table, to provide the theoretical guidance for the development of industrial clusters.
Testing Research of Fiber Bragg Grating Strain Sensor Embedded in Bored Pile
Authors: Huang Mian , Wu Yong Hong , Guan Yuan Yu , Li Ying Na , Xie Tao , Zhao Zhen Gang , Li Chuan
Published: August 2014

Reinforced concrete piles are used when structures are constructed on soft ground, because it is necessary to transfer the loads into deeper strata with a sufficient bearing capacity. With the purpose of receiving more precise information about the pile features, four fiber Bragg grating strain sensors are embedded at different levels of the pile to measure the strain distribution during straining and pull-out tests. Test Pile vertical uplift static load test results show that, settlement of the test pile is steep variations, the steep rise starting point corresponding to the load of 3300 kN for the Uplift Ultimate Bearing capacity, the corresponding uplift amount is 12.45 mm; 4.4 m, 7.2 m, 11.0 m and 14.5 m sections axial strain were 115 με, 42 με, 6 με and-3 με. Maximum loading capacity is 3600 kN, the corresponding uplift amount is 30.13mm; 4.4 m, 7.2 m, 11.0 m and 14.5 m sections axial strain were 142 με, 61 με, 7 με and-1 με.
The Application of PSO-BP Neural Network PID Controller in Variable Frequency Speed Regulation System
Authors: Li Chun Hua , Xu Shao Xiong , Xie Yang , Zhao Jie
Published: August 2014

Variable frequency speed control system hold good stability,more efficient,more energy conservation etc, so it has been widely used in the industrial areas,but the control strategy of traditional was difficult to achieve the desired control effect.This paper adopt particle swarm algorithm and BP neural network to construct the PID controller of PSO-BP neural network , the M-Files of PSO-BP neural network PID based on MATLAB through S-Function, and the mode of PSO-BP neural network PID variable frequency speed control system was established in SIMULINK platform.Simulation results show that the controller hold well robustness, follow and stability,and the dynamic characteristics of the original system was improved, the application value of this method in the variable frequency speed control system was proved.
The Design and Simulation of Scheelite Alkali Autoclave Reactor Fuzzy-PID Controller
Authors: Luo Xiao Yao , Chen Bin , Yu Meng , Xiong Qi
Published: August 2014

In view of the present situation of scheelite smelting technology in China, we analyze the existing equipment and process problems,put forward the technique of mechanical enhancement of scheelite and alkali autoclave decomposition method combining with the temperature, the temperature of reaction kettle as the main object of control, the fuzzy control and PID control combined to design a two-dimensional fuzzy controller, through the MATLAB simulation results show that, the control effect, safety and feasibility of good.
The Design of Communication System for Wearable Health Monitoring Equipment
Authors: Ma Hao , Liu Hao , Ma Zhi Qing
Published: August 2014

Viewing the health care problem facing the aging society, an intelligent wearable monitoring system is designed, which is able to collecting real-time data and analyze the data for physiological parameters for a plurality of monitoring object. The system, with CAN bus interface chip C8051F040 low power and wireless RF chip nRF24L01 as the core, collect real-time multiple physiological parameters of monitored objects through wireless mode, and send the data to the monitoring center through high reliability CAN bus mode, so as to achieve the intelligent home health care function.
Design of Temperature Control System Based on FPGA and Fuzzy-PID Control Algorithm
Authors: Chen Ya Juan
Published: August 2014

The fuzzy PID controller is almost realized by single chip microcomputer software, its real-time and anti-jamming are poor. This artical uses FPGA as the core controller and adopts the idea of modules, a fuzzy PID temperature controller is designed and achieved. Actual operating result shows that this method can significantly improve the control effect, simplify the design, but also can improve the real-time and anti-jamming capability of the system.
Research on PVDF Micro-Force Sensor
Authors: Ma Chao Zhe , Du Jin Song , Liu Yi Yang
Published: August 2014

At present, sub-micro-Newton (sub-μN) micro-force in micro-assembly and micro-manipulation is not able to be measured reliably. The piezoelectric micro-force sensors offer a lot of advantages for MEMS applications such as low power dissipation, high sensitivity, and easily integrated with piezoelectric micro-actuators. In spite of many advantages above, the research efforts are relatively limited compared to piezoresistive micro-force sensors. In this paper, Sensitive component is polyvinylidene fluoride (PVDF) and the research object is micro-force sensor based on PVDF film. Moreover, the model of micro-force and sensor’s output voltage is built up, signal processing circuit is designed, and a novel calibration method of micro-force sensor is designed to reliably measure force in the range of sub-μN. The experimental results show the PVDF sensor is designed in this paper with sub-μN resolution.
Study on Features and Application of Typical Smart Materials
Authors: Lin Guo Min , Li Yan Hua
Published: August 2014

The working principle and structure of piezoelectronic material are studied. The relationship between piezoelectronic element signal and deformation are given. The microstruction and movement characteristics of magnetostrictive materials are alynazed. The performance, mechanical properties and applications of electro rheological fluids are researched. At last the future research focuses of smart material are prospected. Keywords: Smart materials; Piezoelectronic material; Magnetostrictive materials; Electro rheological materials
A Fast Pose Estimation Method of Four-Rotor Aircraft
Authors: Xu Cheng Da , Ma Hong Xu
Published: August 2014

In order to solve the inaccuracy and slowness of four-rotor aircraft pose estimation, a fast method is proposed. It uses FPGA+DSP as the hardware processing platform to reduce the overhead time and adopts the theory of Harris corner detection to gain the corner points’ coordinate and gray values. Then the pose of four-rotor aircraft can be calculated. The result of experiment shows that the method could estimate the pose of four-rotor aircraft accurately.
A Kind of Portable Wire Rope Testing Equipment
Authors: Yang Zi Jian , Liu Li Li
Published: August 2014

This paper presents a design and realization of a kind of portable wire rope testing equipment which based on the principle of nondestructive detection. A digital filter for noise removal, which is realized on STM32F103, is designed. GUI system is based on the QT platform, which has the characteristics of strong stability, high scalability, and the convenience of the operation.
Study on Nanometer ATO Powder Prepared with Citric Acid as Dispersant and its Conductive Properties
Authors: Zhu Xie Bin , Chen Jing , Huang Zhong Jia
Published: August 2014

Antimony doped tin oxide (ATO) Nano powder was prepared by co-precipitation method, selecting SnCl4 • 5H2O and SbCl3 as the main raw material, citric acid as dispersant, ammonia solution (1:3) as precipitant, which was characterized, analyzed and tested by XRD, SEM, and digital conductivity meter. The optimum technological condition is that evenly-scattered powder whose crystalline structure is rutile, particle is sphere, size is about 10nm and conductivity is 1.32 ×102 µs/cm can be obtained when the reaction temperature is 60°C, Sb doping ratio is 10%, pH value is 2, calcinations temperature are 600°C and calcinations time are 2 hours.
Research on the Detection of Focusing Mechanisms
Authors: Chai Fang Mao , Fan Yan Chao , Xin Hong Wei , Li Zhi Lai
Published: August 2014

Since focusing mechanisms is essential equipment, which could compensate the difference between adjustment environments and working conditions of space optics remote sensors, the detection of it is very important. Based on engineering practice, this paper firstly introduces the basic detection of focusing mechanisms, that is the appearance inspection and the boundary dimension inspection, and then introduces several common performance test projects, that is the detection of stroke, step length, gravity inclination, rock, and empty back and the test of modal, self-locking performance and closed-loop accuracy, and also introduces relative detection methods and cautions. At last it briefs other derivative detection projects.
Research on Flood Control Operation for Poyang Lake Semi-Restoration Dikes are Based on Variable Fuzzy Optimization Theory
Authors: Yan Hong
Published: August 2014

Based on variable fuzzy optimization theory of semi-structural decision-making theory, the flood control operation of semi-restoration dikes in Poyang Lake has been optimized. The optimal program will provide basis for scientific flood control of Poyang Lake.
Surface Modification on Rabbit Hair Fiber for Anti-Static and Ultraviolet Protective Properties via ZnO Nanopartciles
Authors: Li Ming Chao , Zhang Yi
Published: August 2014

Rabbit hair fibers have been modified by ZnO nanoparticles for improving anti-static and ultraviolet protective properties. Field emission scanning electron microscope and X-ray diffraction patterns were used to reveal the physicochemical processes of nanoparticles loading onto fibers. The mass specific resistance value of treated fibers is significantly decreased by over 107 times than that of raw fibers, which is 10.40 MΩ·g/cm2 after treatment. The ultraviolet protection factor (UPF) value is 102.1 and ultraviolet radiation A (UVA) blocking reaches 97.9%. Meanwhile the mechanical property improves slightly.
Selection of Plate Self-Locking Nut
Authors: Hou Kun , Zhang Hui , Li Guang Jun
Published: August 2014

Through the correct assembly of various types of Plate Self-Locking Nuts, and their related mechanical properties test, on the premise of that Floating Two Lug Plate Self-Locking Nu, Floating Plate Self-Locking Nut, Cherry Rivetless Self-Locking Nut Plate, and Retainer Rivetless Plate Self-Locking Nut can satisfy the procurement specifications, use the same load levels on above four kinds of Plate Self-Locking Nuts to implement resisting shear connectors fatigue comparison test, and provide the basis for the selection of the Rivetless Plate Self-Locking Nut and its utilization in aircraft fatigue critical region. The results show that with the experimental study of four kinds of plate floating self-locking nut, the overall performance is relatively good to Floating Plate Self-Locking Nut and Retainer Rivetless Plate Self-Locking Nut, both of the two kind of Self-Locking Nuts plate can meet the requirements of the mechanical properties to Plate Self-Locking Nut, and their fatigue performance is greatly improved as opposed to the Floating Two Lug Plate Self-Locking Nut. Since the studied Plate Self-Locking Nuts are already used to aircraft in a larger amount, the study could be applied to various aircraft design and selection of the Plate Self-Locking Nut.
The Electrical Standard Practices in the Role of Airbus Aircraft Maintenance
Authors: Duan Rong Yi
Published: August 2014

wiring fault is a fault in the fault plane, along with the development of the aviation industry, increasing aging aircraft, how to use the manual fault and failure analysis, mature locomotive repair personnel each should master the basic skills of Boeing aircraft repair. combined with a specific fault, in conjunction with the relevant manuals, carries on the analysis to the wire and remove the fault.
A Four-Coordinate CNC Device Based on Engraving and Milling Machine
Authors: Zhao Wei Min , Shen Liang Yong , Yang Chao Zhen
Published: August 2014

The structural layout and basic principle of a four-coordinate CNC device mounted on a common CNC milling machine was introduced, with it four-coordinate workpieces can be machined by a single setup,which can reduce costs and improve efficiency.
A Method for Software-Related Safety-Critical Scenarios Identification
Authors: Jiang Meng Xia , Jiang Guo Hua
Published: August 2014

Softwares is becoming increasingly important causes for failures of safety programmable electronic (PE) systems,PRA and CSRM both take it as an important risk contributor and respectively access risk of systems and software in system level.However they partly identify software-related risk scenarios ,and can’t tell what a software must do about all safety-critical conditions,i.e.,safety functions,especially warning functions for conditions software can’t control but must alarm operators to action immediately.Here we give a method to find all software-related safety-critical scenarios,through it all safety-critical conditions and the corresponding functions can be identified.
A New Rough Set Model and its Application
Authors: Jia Ming Ming , Qin Hai Qin , Wang Yong Qi , Xu Ke Jun
Published: August 2014

A new neighborhood variable precision rough set modal is presented in this paper. The modal possesses the characteristics of neighborhood rough set and variable precision rough set, so it can overcome shortcomings of classic rough set which only be fit for discrete variables and sensitive to noise. Based on giving the definitions of approximate reduction, lower and upper approximate reduction, lower and upper distribution reduction, two kinds of algorithms to confirm lower and upper distribution reduction were advanced. The modal was applied to diagnose one frequency modulated water pump vibration faults. The result shows the modal is more suitable to engineering problems, because it can not only deal with continues variables but also be robust to noise.
A Novel Method of Spike Detection for Interferograms Based on Two-Step Filtering
Authors: Zou Yao Pu , Han Chang Pei , Zhang Lei , Pan Wen Gui , Wang Chao
Published: August 2014

According to the characteristics of interferogram, we design a new spike detection method, which firstly filters an interferogram with two different ways and then detects spikes based on both results. Theoretical analysis and computer simulation shows that this algorithm performs well in detecting spikes in any position of an interferogram with high accuracy, and can be easily implemented in hardware.
An Improved Frame Loss Concealment Algorithm Based on the Mixed Excitation Linear Prediction
Authors: Li Qiang , Tian Fang
Published: August 2014

An improved frame loss concealment algorithm based on the Mixed Excitation Linear Prediction (MELP) is presented in this paper. It introduces the Future frame to recover the lost frame and the intermediate frame (U/V frame and V/U frame) to determine the type of lost frame more accurately. Meanwhile, it proposes the Lagrange polynomial approach algorithm and the linear prediction algorithm to recover the parameters of lost frames in different frame types. The PESQ-MOS test shows that the synthetic speech quality has been improved with the algorithm which this paper has proposed.
The Aging Properties of Bamboo-Poplar Composite Oriented Strand Board with Different Hybrid Ratios
Authors: Fu Xiang Fei , Yong Cheng , Guan Ming Jie
Published: August 2014

In this paper, the bamboo-poplar composite oriented strand board (OSB) with different hybrid ratios were aged under the standard of ASTM D1037 to evaluate its weathering performances. The thickness swelling (TS), water absorption, modulus of rapture in perpendicular direction (MOR⊥), modulus of elasticity in perpendicular direction (MOE⊥) and internal bonding (IB) of specimens were tested. The results showed that the reduction rate of TS ranged from 21% to 69%, which increased with the poplar ratio increasing; the growth multiple of 24h water absorption of bamboo-poplar composite OSB were at the similar level, the values of which were much smaller than that of the pure bamboo or poplar OSB; the maximum and minimum retention rate of MOR⊥ and MOE⊥ belonged to pure bamboo and poplar OSB respectively, retention rate of MOR⊥ of the bamboo-poplar composite OSB rose with the increment of poplar ratio, while retention rate of MOE⊥ and IB of bamboo-poplar composite OSB were similar and the hybrid ratio 2.5:7.5(bamboo: poplar) obtained the maximum IB retention rate of 16%. Through detailed comparison, the bamboo-poplar composite OSB with the hybrid ratio 2.5:7.5 performed the best after aging.
Compressed Sensing Image Reconstruction Based on Improved Particle Swarm Optimization Algorithm
Authors: Wang Ju , Liu Yin , Zhang Wei Juan , Li Kun
Published: August 2014

The reconstruction algorithm has a hot research in compressed sensing. Matching pursuit algorithm has a huge computational task, when particle swarm optimization has been put forth to find the best atom, but it due to the easy convergence to local minima, so the paper proposed a algorithm ,which based on improved particle swarm optimization. The algorithm referred above combines K-mean and particle swarm optimization algorithm. The algorithm not only effectively prevents the premature convergence, but also improves the K-mean’s local. These findings indicated that the algorithm overcomes premature convergence of particle swarm optimization, and improves the quality of image reconstruction.
Efficiency Analysis of Different Cooperative Communication Schemes in Wireless Sensor Networks
Authors: Li Zhen Zhen , Li Guang Ming , Liu Wei
Published: August 2014

We compare the energy efficiency of different cooperative communication schemes in wireless sensor networks. By taking into account the energy consumption of the RF circuitry, we show that the incremental decode and forward (IDF) protocol may be considerably more energy efficient than others because a feedback channel is available. We also find that using cooperative transmission too much is not necessarily to improve system performance.
Estimation of Distribution Algorithm using Two Kinds of Information for Solving Knapsack Problem
Authors: Yu Juan , He Yu Yao , Feng Xiao Hua
Published: August 2014

Former information of probability model and inferior individuals was discarded in the research of estimation of distribution algorithm usually, but they may contain useful information. In this paper, the information of former probability is introduced to avoid premature convergence , and the information of inferior individuals is used to filter generated individuals. The algorithm is used to solve knapsack problem and simulated based on the widely used examples, the results demonstrate the effectiveness of proposed method, the utlilzation of former information of probability model and inferior individuals greatly improve the performance of algorithm .
GaAs MMIC Wideband SP8T Switch
Authors: Liu Cheng Peng , Wang Guo Qiang
Published: August 2014

this paper mainly introduces a GaAs MMIC Wideband SP8T Switch. Firstly, every possible configuration is contrasted, the theories of basic GaAs switch configurations are mentioned. Secondly, the theories of basic GaAs switch configurations are mentioned. Subsequently, appropriate topology is selected for this SP8T switch. This switch has been realized by 0.5µm GaAs pHEMT process. this switch exhibits high performance: over DC~2.5GHz, insertion loss is lower than 1.27dB; The isolation is lower than 30dB; the ripple variation of insertion loss is less than ±0.1dB; input return loss is lower than 22dB; on state, output return loss is lower than 18dB; off state, over 0.2GHz-2.5GHz, output return loss is lower than 10dB; on and off time are less than 75ns. The layout of the switch with a chip size is 1.11 mm×1.51mm.
HD Video Online Recognition Based on DCT Spread Spectrum Watermarking Algorithm
Authors: Fan Hua , Wang Gang , Lv Min , Wen Xiao Xian , Zhou Yu Peng
Published: August 2014

In order to guarantee the programs play correctly and protect the digital video copyright, this paper gets a method on high-definition video (HD video) online recognition with strong robustness through analyzing the TV monitoring system requirements and video characters, based on the DCT algorithm. This method will embed the watermark after obtaining the embedding positions by analyzing video frames. It can improve the robustness to compression, noise and filtering by using Arnold scramble and spread spectrum technology. It is a real-time measure to extract watermark and recognize it in HD videos. This method shows of good performance to online recognition in HD video’s watermark extracting and recognizing in theoretical analysis and simulation experiment.
Mobile Learning Mode Based on 3G
Authors: Luo Ying , Zhang Xiang Qing
Published: August 2014

With the issuance of 3G licenses, China enters into the 3G era formally. In the condition of 3G technology, designing effective mobile learning mode can improve learning efficiency and make learners really benefit from the convenience brought by mobile learning. The paper introduces several modes which 3G technology can be applied into mobile learning, and problems existing in the process of developing mobile learning mode based on 3G network.
Modeling and Analyzing of RRC Protocol Process Based on CPN
Authors: Sun Yi Ning , Liu Yong Mei , Liang Shi Shi
Published: August 2014

To guarantee the protocol implementation is correct, protocol testing is essential. Formal specification provides a middle method for protocol testing, which can support verification and testing protocol semi-automatically or automatically. RRC is an important protocol in WCDMA system. So the paper describe RRC protocol process as a formal model based CPN modeling method, then analysis and verify the model with CPN Tools to ensure it is correct.
Multi-Channel MKL for Video Human Action Recognition
Authors: Ding Jia , Yi Yang , Qiu Ze Min , Liu Jun Shi
Published: August 2014

Human action recognition in videos plays an important role in the field of computer vision and image understanding. A novel method of multi-channel bag of visual words and multiple kernel learning is proposed in this paper. The videos are described by multi-channel bag of visual words, and a multiple kernel learning classifier is used for action classification, in which each kernel function of the classifier corresponds to a video channel in order to avoid the noise interference from other channels. The proposed approach improves the ability in distinguishing easily confused actions. Experiments on KTH show that the presented method achieves remarkable performance on the average recognition rate, and obtains comparable recognition rate with state-of-the-art methods.