bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Information Industry of Rail Transportation
Authors: Liu Zi Yu , Yang Guo Xia , Jiang Hao Liang
Published: October 2013

Rail transportation includes intercity rail transportation and urban rail transportation. Information technology is indispensable for the development of rail transportation. This paper first gives the architecture of rail transportation information technology, and puts forward the structure of rail transportation information industry based on it. In this paper, rail transportation information industry is divided into communication industry, Signal industry, vehicle information industry, power monitoring industry, environmental control and fire alarm industry, automatic fare collection industry, operation and management system industry. Then from the two aspects of railway and urban rail transportation, this paper analyses each industry chain in the rail transportation information industry.
An Intelligent Recognition Algorithm on Traffic Safety States
Authors: Wang Wei Zhi , Liu Bing Han
Published: October 2013

Traffic safety states can be divided into safe and dangerous according to the attributes of video images of traffic safety states. We propose a synergic neural network recognition model based on prototype pattern by analyzing various methods on intelligent video processing. Our proposed method realizes real time classification of traffic safety states with high accuracy of traffic safety states recognition. The experimental results validate that the accuracy of classification of proposed method arrives at 87.5%, increased by 16.2% compared to traditional neural network methods.
Improving Program Performance via Auto-Vectorization of Loops with Conditional Statements with GCC Compiler Setting
Authors: Zhu Qi Shen
Published: October 2013

The GCC is an auto-vectorization compiler across iterations of loops to parallelism data. Turning GCC compiler optimizations flags for auto-vectorization is a way to improve the performance ability, which is a popular approach to speed up program performance. However, there are many options in GCC compiler and selecting the best combination of these options to improve program performance through vectorization is non-trivial ( as the search space is very large ).In this work we focus on the selection of compiler transformations to auto-vectorize loops with conditional statements. The selection of compiler transformations is based on the correlation between program features, speed-up, and the analysis of the code generated and a small number of passes of iterative compilation. Our preliminary experimental results show that proposed technique attains performance improvements the best ~ 6x using loops in the TSVC benchmark suite on the state-of-the-art Intel Core i3 processor.
Incorporating a 4x4 Keypad in a Simple Digital Clock
Authors: Huang Wan Fu
Published: October 2013

Most simple digital clocks use a push button to increment time reading for time adjustment. It is often time consuming. This paper suggests adding a four-by-four keypad to adjust each single time digit. The required valid 4x4 keypad key set for each time digit is predefined in the circuit design. Pressing a prohibited key would neither generate any function nor affect the operation of the digital clock. The system prototype circuit design was based on Verilog hardware description language and implemented on an EVS6 Boardan FPGA lab board. With the proposed design, adjusting time on a digital clock is quick and easy.
Communication Module of Solar Hot Water System Based on GSM Short Message
Authors: Jiang Ping , Shen Wei , Chen Rui Xiang
Published: October 2013

In order to improve the intellegence of the solar hot water system, we design the communication module of solar hot water system based on GSM short message. The communication module is composed of embedded dual serialport MCU, GSM module and level conversion circuit. The paper introduces the hardware structure of the communication module and the serial communication protocol between single chip and control instrument, then analyzes the working process of the communication module. The combination of the GSM short message technology and solar hot water system enhances the intelligent level of solar hot water system.
Research on Junction Termination Protection Technology for 3.3 kV Power Devices
Authors: Bao Hai Long , Liu Yue Yang , Gao Wen Yu , Wang Yao Hua , Jin Rui , Yu Kun Shan , Zhang Yu , Liu Juan , Che Jia Jie
Published: October 2013

The necessary condition for power devices with enough blocking properties is Junction termination technology. In this paper, starting with the dose of rings, 3.3 kV Floating Filed Rings was investigated, and the influence of electric field and current density on the breakdown characteristic is also described. The results show that the dose of field rings directly affects the stability of breakdown voltage, this impact is relevant to the location of the peak electric field and the peak current density when breakdown was occurred. When the peak electric field appears in the middle of the field rings, the breakdown voltage is not sensitive to the dose of rings; however, when the peak electric field and strongest current density appeared on the edge of termination at the same time, breakdown voltage become very sensitive to the dose of rings because of the highest impact ionization in this position. Simulations and experiments indicate that the junction termination has better withstand voltage stability , when electric field distributes uniformly, the position of breakdown is in the middle of the termination, and the strongest current density appears in the main junction.
Design of Gate Opening Apparatus Based on the Absolute Value Photoelectric Encoder of AVM58 Type
Authors: Wang Yan Chun , Luo Shao Xuan
Published: October 2013

A gate opening apparatus based on the absolute value photoelectric encoder of AVM58 type is designed. The internal structure and software design are introduced. It overcomes the disadvantages of low accuracy and poor reliability during gate opening detecting with the contact type encoder and solves the hidden security problem that when the system is powered down the gate travel can not be accurately recorded with the increment type photoelectric encoder. The practical applications in some water conservancy facilities show that it has good effect. For the lifting height of 40 meters, the opening detection precision is up to 1mm, and when the system is powered down, the decline or other moving distance of the gate can be accurately recorded, so the accuracy and safety of the gate control are improved.
An Industrial Robot Based Drilling System for Aircraft Structures
Authors: Bi Yun Bo , Li Yong Chao , Jiang Yi Hang , Li Jiang Xiong , Wang Wei , Gao Mian , Li Shuo
Published: October 2013

In order to realize automatic flexible drilling with high efficiency and good quality, a drilling system was established, which integrates the technology of laser measurement, off-line programming, computer control and robotics. In this system, the key coordinate frames are established by the laser tracker, the drilling programs are generated by the off-line programming and simulation system, the communication between the automatic drilling control system and the robot control system is based on the socket technique. By running drilling program, the moving platform, robot and the end effector can work automatically and harmoniously. In addition, the deviation compensation methods of hole position and its normal vector are proposed. The experimental results show that the efficiency of drilling can achieve 6 holes per minute, the position accuracy can be effectively controlled within 0.3mm, and the normal accuracy is better than 0.5°.
RFID-Based Intelligent Management System of Poultry House
Authors: Sun Qi Feng , Pan Han Huai
Published: October 2013

This paper study on aquaculture management system of main achievement of the poultry animal breeding site data collection and background data management. The actual development environment consists of software and hardware resources to build the configuration of the two part of the work. PC hardware machine, ARM-based embedded development board set and RFID reader chip and its peripheral circuit module, PC machine with Windows XP operating system. Development board running Linux system, including transplant Boot Loader, Linux kernel cutting, making the root file system migration and application development. System realizes the intelligent management of the poultry house.
The Research on Electricity Behavior and Energy Saving Based on Disturbance Fuzzy Comprehensive Evaluation of Residential
Authors: Liang Yong Chun , Feng Teng Jiao , Wang Jiao Ying
Published: October 2013

As the propaganda and popularization of saving electricity, more and more people realize the importance of saving electricity. But most of the families have ideological struggle between saving electricity and satisfying their own comfort, which is negative to saving electricity. In this article, the investigation shows that most people are more willing to make the balance between energy-saving and comfort. Electricity consumption data is obtained through surveys. These data are analyzed by disturbance fuzzy comprehensive evaluation of residential. Suggestions for improving energy efficiency will be raised and residents can make the balance between energy-saving and comfort.
Study on MEMS Gyro Signal De-Noising Based on Improved Wavelet Threshold Method
Authors: Shi Yong Sheng , Gao Zhi Feng
Published: October 2013

An effective filtering method for MEMS gyro random drift is discussed. On the basis of the fundamentals and defect analysis of wavelet threshold de-noising, a new continuous threshold function at λ is presented, signal concussion and distortion in wavelet hard and soft threshold method is effectively overcome. The improved wavelet de-noising algorithm is applied to MEMS gyro signal filtering experiment and experimental results show that the proposed method can effectively reduce the high frequency noise, restrain the MEMS gyro random drift, increases the SNR and decrease the MSE.
The Implementation of Rights Management of Network Teaching Platform with Role-Based Access Control
Authors: Han Gui Ying , Li Xi Zuo
Published: October 2013

For the system security risks of multiple administrators to manage the network teaching platform, role-based access control (RBAC) from the ThinkPHP framework is used to implement the rights management of the network teaching platform. Teachers or administrators access and can only access the related function modules or methods authorized by the super administrator. It facilitates the rights management of the network teaching platform and makes a clear division of works for the multiple administrators and more scientific management of the platform. Practice shows that RBAC-based rights management for the network teaching platform is simple, practical and has a good application value.
Building an Integration Mobile Portal in Digital Campus
Authors: Zhang Yu , Ma Er Dong , Peng Yu , Li Yan Xia
Published: October 2013

The daily learning and teaching activities in digital campus would be better supported if existing Web applications and services could be accessed on mobile devices. A mobile portal can gather information from different systems and provide integrated and personalized services to the users in a unified manner. This paper discusses the considerations to take when designing a mobile portal in digital campus, illustrates the system architecture of the mobile portal we actually built, and describes the implementation and technical details of the system. The mobile portal introduced in this paper has been in active service at Tsinghua University since May 2012 and has well boosted the efficiency of daily learning and teaching activities in the university.
Design and Implementation of Construction Materials Quality Detection Management System Based on Visual C++ and Database
Authors: Feng Zhi Gang , Dai Fang Yuan
Published: October 2013

In order to improve the efficiency of the traditional building materials information management, a construction materials quality detection management system is designed and developed. It includes three subsystems, they are quality testing system, information management system and process monitoring and control system. In the system, SQL Server 2000 is used as background database, Visual C++ 6.0 is used as the development platform, ADO is used as the connection between Visual C++ and SQL Server 2000. By using this system, the original paper records are stored in the database, the testing process is standardizes. The modernization of building materials information management is improved. This system has been successfully used in certain Building Materials Quality Supervision Station, which proved that the development process is suitable for Building Materials Supervision Station to quickly establish construction materials quality detection management system.
Research and Development of the Sweater Mass Customization System Based on Android
Authors: liu Yan Mei , Li Yong Gang , Wang Hua E
Published: October 2013

In this paper, a sweater customization system is designed based on the mass customization mind, which is suitable for Android mobile devices. The key technologies of system developing on Android mobile devices, such as data analysis, image loading, interface connection, are described in the paper. The system is divided into two parts, the client and the server, which are linked by Servlet. The usage of sweater customization system indicates that the sweater mass customization system has broad application prospects.
Set Point Force Control of Shape Memory Alloy Actuator Using Fuzzy Controller
Authors: Gao Fei , Deng Hua
Published: October 2013

Shape memory alloy (SMA) has a property that when the temperature of SMA is stabilized, the fraction of Martensite phase keeps the same, and output force of SMA actuator also keeps constant. Based on that, a control strategy for set point force control of SMA actuators is proposed that during the process of driving, to stabilize output forces of SMA actuator, some voltages called balance voltages which can stabilize the temperature of SMA at the point will be input to SMA actuator. Besides, in order to shorten force rising times, before output force reaches the desired force, the max control voltage will be input to SMA actuator. Those balance voltages are related to output forces, therefore, its impossible to get all balance voltages. In this thesis, some balance voltages at different output forces are acquired by experiments. Based on this data, a series of fuzzy rules are used to fit the curve of all balance voltages. Since the balance voltages line is not accurate, balance voltages are needed to be slightly adjusted near the fitting curve according to force errors. Based on the control strategy, a fuzzy controller, with two input variables-desired force and force error and one output-control voltage, is designed. Finally, for testing the performance of the proposed controller, an experimental prototype is implemented. Experiment results show that the proposed controller is successfully applied to SMA actuator, and have a better control performance than conventional PI controller.
ARP Fraudulence and Strategy in Local Area Network
Authors: Wu Jian Dong , Huang Guo Hui
Published: October 2013

This article has analyzed the local area network Address Resolution Protocol principle of work and the safe hidden danger, proposed the Address Resolution Protocol deceit's design realizes the method, and has analyzed its harm through the example, finally has made the further discussion to the procedure extendibility and the effective protection method.
On the W&R and RSI Expert Systems of Securities Software
Authors: Wang Pin , Huang Hai Ping
Published: October 2013

Using the method of statistical experiment and based on real and open data of securities, the research conducted a test to the W&R and RSI expert system of securities trading software. Taking annual net profit margin, rate of return, and win rate as the management objectives, the research compared and analyzed the two similar reversal trend indicators on the basis of mathematic statistics theories, and achieved results that the annual rate of return and net profit margin of the RSI expert system are superior to that of the W&R expert system for 4.72 times, and that the annual number of trades of RSI is superior to that of W&R for 0.893 times.
Cryptanalysis of a Remote User Authentication Scheme
Authors: Wang Bang Ju , Zhang Huan Guo
Published: October 2013

Among many user authentications over insecure networks, password authentication is simple, convenient and widely adopted one. Chen and Lee proposed a new hash-based password authentication using smart card and claimed that their scheme could resist seven attacks as listed in their paper. However, in this paper, it is pointed out that Chen-Lee’s scheme is vulnerable to off-line password guessing, replay and impersonation attacks when the smart card is lost or stolen.
Closed Cube Algorithm Research for Distributed Storage
Authors: Ding Jun Shuai , You Jin Guo , Zhou Shui Li
Published: October 2013

Data cube is to improve the efficiency of an important means in data query, while the enclosed data cube used by eliminating non-enclosed data cube tuples to reduce the disk space and improve the query response time. Based on the MapReduce parallel processing technology research, the MapReduce-based closed data cube generation algorithm is proposed,which can effectively improve the closed data cube massive data generation rate. The simulation results show that the proposed MCDC algorithm in practical applications can offer conditional definition by users to build closed data cube that is needed. Parallel processing capability of distribution system has been fully developed.
The Application of Mechatronics Technology in Coal Mine Machinery
Authors: Wang Li Li , Bi Qing
Published: October 2013

The continuous development of the mechatronics technology provides important means for the mine electromechanical products to achieve safe, efficient and mechanized. First, mechatronics technology is introduced by this paper. Then the application of Mechatronics in the coal mine machinery are elaborated.
Development of the Virtual Designing and Manufacturing System Based on Microcomputer Platform
Authors: Chen Qing Kui , He Qiang
Published: October 2013

This article has introduced the composition of the engineering machinery virtual designing and manufacturing system which is based on the microcomputer platform, introduced the implementation plan of the system and the key technology such as the development of general machinery part CAD system, movement simulation, finite element analysis, NC code automatically programming, Visible CAPP system based on Solid Edge platform, the realization of network issue system and Solid Edge integration technology.
Quality Analysis Method of Tracking Information in Aerospace Flight Mission
Authors: Duan Hui Fen , Sun Feng , Xue Chang Xin
Published: October 2013

In the aerospace experimental task,rule based information quality analysis method is very useful not only to immediately discover the problem in information gathering,transporting and processing,but also to precisely evaluate the accomplish situation. Based on the data analyzing model and characteristic of the aerospace experimental tracking and control information ,the method constructed an information quality analysis rule framework that make real-time information quality analysis a reality by combining the rules in different manner on demand. As a result, the aerospace experiment tracking and control information can be dynamically monitored, and the abnormal data can be captured instantly to help estimating the system malfunction.
Application of Fuzzy-PID Control in the Air Supply System with Constant Pressure for Mine Compressor
Authors: Meng Xiang Zhong , Liu Hui Long , Song Wei , Wang Wen Chao , Hou Zi Sheng
Published: October 2013

In order to solve the air supply pressure instability problem in mine compressor, a fuzzy-PID controller is designed to be combined with conventional proportional-integral-derivative (PID) control and fuzzy control technology based on the programmable logic controller (PLC), where the compressor air supply system can achieve optimal control based on the system requirements and the actual usage, realizing air supply with constant pressure for compressor.
The Absorbing States Based on Location Strategic Interaction on Endogenous Infinite Plane Lattice and the Stochastic Stability
Authors: Ji Zhi Hong , Gao Hong Wei , Chen Chun Rui
Published: October 2013

In the context of endogenous infinite plane lattice, the literature [ characterizes the accurate features of equilibrium structure and absorbing set based on location strategic interaction under different levels of the cost of link formation. On this basis, this paper make further efforts on the stochastic stability of absorbing state in some specific circumstances.
Verification, Validation and Accreditation of Ship Electric Propulsion Simulation System
Authors: Li Bing , Li Li Hong , Liu Fan Ming
Published: October 2013

in this paper, the concepts of modelling, simulation, verification and validation are described in order to analyse their necessities in electric ship propulsion system simulation. Traditional verification and validation methods are outlined before a new method based on expert theory and verification and validation methods of software testing is proposed to verify if the simulation program meets customers needs and respective software protocols, according to the characteristics of electric ship propulsion system.
Evaluation of Coupled Rheological Equations
Authors: Hou Lei , Sun Pan , Zhao Jun Jie , Qiu Lin , Li Han Lin
Published: October 2013

Apart from the convergence of the first-order hyperbolic partial differential equations in rheological flow,this paper estimate the general behavior of the solution. By analyzing the coupled partial differential equations on a macroscopic scale the solution of free surface flow has been obtained. Its asymptotic estimate of the solution and super convergence are proposed in the internal boundary layer.
Numerical Analysis on the Internal Flow Field and Adsorption Performance of a Non-Contact Vortex Gripper
Authors: Zheng Zhi Jian , Liang Dong Tai , Lu Bo , Huang Jun Hui
Published: October 2013

Based on the establishment of the geometry and equations of non-contact vortex gripper, the numerical analysis of the internal flow field characteristics and the key parameters affecting the adsorption performance was carried out. The results showed that: for the single air-entrance gripper, the negative pressure center not coincides at the geometric center of the gripper. Besides, with the movement of swirling flow, the position of the negative pressure center transformed; When the geometric parameters and working conditions are fixed, there is the most suitable air gap making the maximum value of negative pressure and adsorption force; Compared to single air-entrance gripper, double air-entrance gripper have better adsorption stability.
Study and Application on Hydrajet Multistage Fracturing Technology
Authors: Xue Ren Jiang , Guo Jian Chun , Fan Wei Ting , Zhang Pei Dong
Published: October 2013

Hydrajet fracturing has the advantages which not only include perforating without compacted zone, creating fracture exactly, but also include controlling fracture height, shortening the working cycle, reducing operation risk and etc.[. Through studying the optimization of nozzle materials and combination, string structure, operation pressure of surface casing and annular displacement, the hydraulic jet multistage fracturing technology is formed. This technology is successfully used and proves it has good popularization and application.
Experimental Study on the Compressive Strength and Frost Resistance of Rubber Concrete
Authors: Yu Qun , Ye Wen Chao
Published: October 2013

Experimental studies on the compressive strength and frost resistance of rubber concrete during different maintenance period have been carried through in this paper. The results show that: the concrete compressive strength reduces with the incorporation of rubber particles, but its frost resistance increases, and with the growth of the maintenance period, its compression performance increases; however, its frost resistance remained unchanged.
Influence of Humidity on Building Material's Radon Exhalation Rate
Authors: Ji Dong , Xu Zhong Yang , Zhang Yun Tao
Published: October 2013

In this paper, the humidity of building materials were controlled by adopting the inorganic salts saturated solutions, and the radon exhalation rate of building materials were measured by the active carbon method which under the different humidity conditions. The result indicates that with the humidity increasing, the radon exhalation rate of building material first increasing and then decreasing; The average roundish radius of building material bigger, the speed of radon releasing coefficient arrival the saturation point was quicker; the porosity and humidity was bigger, the radon diffusion coefficient descended was quicker. Under the relative humidity of 56%-96%, the active carbon box with diffusion base may effectively reduce the influence of humidity on active carbons radon absorption, but under the relative humidity of 56%, the active carbon box with diffusion base may not affect the humidity to active carbons radon absorption.
Prediction for O-Ring Type Sealing Ring's Storage Life Based on Accelerated Ageing Data
Authors: Peng Chen , Gu Xiao Hui , Xiao Kun
Published: October 2013

Rubber sealing ring is one of the common seal components of military products, and its performance will directly affects the storage life of ammunition. There are many factors influencing the sealing ring storage life, so it is not easy to give the exactly life for one specific model of sealing ring. By taking one O type sealing ring as the research object for the accelerated ageing test, we can get the degradation data on different temperature and the relationship between the O-ring's pseudo storage life and storage temperature based on each specimen's property's degradation trajectory equation. And in the end, we predict the storage life for O-ring in normal temperature.
Study on Synchronization of the Centrifugal Flywheel Governor System
Authors: Peng Jian Kui , Yu Jian Ning , Zhang Li , Hu Ping
Published: October 2013

In this paper, the dynamical behaviors of the centrifugal flywheel governor with external disturbance is studied and it has abundant nonlinear behavior.The influence of system parameter is discussed by Lyapunov exponents spectrum and global bifurcation diagram, which accurately portray the partial dynamic behavior of the centrifugal flywheel governor. The routes to chaos are analyzed using Poincaré sections, which are found to be more complex . Periodic and chaotic motions can be clearly distinguished by Poincaré sections, bifurcation diagrams and Lyapunov exponents. Then, the paper proposes coupledfeedback control and adaptive control methods to achieve the chaotic the centrifugal flywheel governor system synchronization, the numerical simulation was provided in order to show the effectiveness of coupled feedback control and adaptive control methods for the synchronization of the chaotic nonautonomous centrifugal flywheel governor system.
Piston Air Compressor Based on Symmetrical Double-Crank Link Mechanism
Authors: Sheng Xiao Ming , Hu Xue Wu , Yang Yang
Published: October 2013

Machine vibration, noise and cylinder barrel wearing are produced when ordinary piston air compressor driven by crank link mechanism is working. Piston air compressor driven by double-crank link mechanism is proposed in this paper to eliminate these problems. Secondary pressurized double-acting air compressor and two-stage double-acting air compressor based on symmetrical double-crank link mechanism are designed in this paper to increase air compressors output pressure and flow rate and to achieve output control of low pressure high flow and high pressure low flow. It can remove effects generated by lateral force, reduce the vibration and noise and the wearing of cylinder barrel, and improve the steadiness and the service life of the air compressor.
Application of CFD Simulations in Studying Outdoor Wind Environment in Different Community Building Layouts and Open Space Designs
Authors: Wu Kang Li , Hung I An , Lin Hsien Te
Published: October 2013

This study explored the ventilation conditions of community atriums for selected housing prototypes in Tainan City, Taiwan. Employing field surveys and CFD simulations, the atrium ventilation of the selected housing building layouts were studied and compared. Through the CFD simulation using the common wind direction in the autumn of the study region, this study found that among the four community building layouts selected, the atrium space of the double-side opening townhouse building layout has the best outdoor ventilation. In addition, the study also revealed that when the arrangement of the building layout and the openings of the atrium are coordinated with the local wind environment, the outdoor ventilation will be significantly improved. Finally, this paper provides suggestions for building layouts and the design of community open space in order to enhances the ventilation of community atrium and its user comfort.
Application of Case Based Reasoning in Technology Industry Competency Development
Authors: Hsu Hui Ling , Chao Li Chung
Published: October 2013

This study aims to assist the semiconductor assembly and testing industry in finding the best way of talent training. Firstly, the analysis of competency designs the training path according to engineers' different realms, introduces Case-Based Reasoning (CBR) combined with courses of the analysis of competency. Then, after the interview of professional engineers regarding their experiences, we analyze the courses' main factors, the degree of demand of instituting the courses, and finally set up the knowledge database of talent training. The results will inspire the training path for automation equipment and process and act as reference for the human resources department, reducing discrepancies between the tech and management department for required skills to equipment and manufacturing processing and enhancing the productive output.
Investigated Solution Concentration Sensor with the Single Mode-Multimode-FBG
Authors: Jin Hong Li
Published: October 2013

A new kind of solution concentration sensor is designed based on the SMF-EMMF-FBG structure. Sensing characteristics of FBG to solution concentration is researched, sensing detection of four kinds of solution is experimentally realized with the wavelength differences between high modes and the fundamental mode, the higher order modes of the etched multimode fiber is more sensitive to the surrounding refractive index than the fundamental mode.
Real Estate Groups Core Business Process Design Based on BRI
Authors: Yang Jian Ping , Xin Tian , Liu Yang
Published: October 2013

Along with changes in both self-development and external environment, many issues have arisen within todays real estate enterprise management. As the outcome of speedy technological innovation and gradual emergence of knowledge economy, management processes have been optimized by these transformations in real estate industry. According to the theory of business process Improvement, this research first analyzed the core processes in real estate enterprise, then re-deigned the process by using the tool of The turtle analysis diagram, finally came up with suggestions according to potential risks and issues associated with actual implementation, which overall aims to be meaningful and useful for further process re-design and optimization.
Design and Implementation of Supply Chain Integrated System Based on Internet of Things
Authors: Chu Liang Yong , Chen Xiu Qian , Dang Shuo
Published: October 2013

In recent years, the technology of the Internet of Things has attracted highly attention of academia, enterprise and news media. This paper made a brief introduction of the connotation and application prospect of Internet of Things, analysed the supply chain management problems in Chinese enterprises, stated the effects of Internet of Things on supply chain management. We designed the supply chain architecture based on EPC Net work, proposed the supply chain integrated system application model based on Internet of Things, designed and implemented the drug supply chain logistics business process system based on Internet of Things.
Research of the Condition and Strategy of the Network Information Literacy of the College Students
Authors: Xu Fang
Published: October 2013

The condition of the network information literacy of the college students is investigated in the paper. The result shows that the leval of the network information literacy of the college students requires improving. The extrusive problems includes the network information consciousness is weak in the aspects such as the comprehensiveness cognizance of the network information literacy; the capacity of the exploring network resources of the college students is low and so on. Some advice is put forward finally.
Key Technology on Construction of College English Multimedia Teaching Website
Authors: Rui Li
Published: October 2013

With the rapid development of information technology, many universities set up English teaching website, using the new teaching mode to improve original single-teacher classroom lecture-based model to improve the teaching effect. This article launches the research, the key technology in the website construction. First of all, design web site columns, including public information, online classroom, self-study tutorship, online examination, teaching reference, academic research, leisure entertainment, links, etc.; Secondly, elaborate Web site features, mainly reflected in the "listening", "say", "read", "write" four aspects; then, research media technology, and using streaming media realize synchronous and asynchronous teaching on the basis of the research on streaming transmission basic principle. Finally, the research ASP.NET application structure. English teaching website build two-way communication platform between teachers and students, which laid a foundation for higher level of language teaching.
Optimal Sensor Fusion in Redundant Inertial Measurement Unit
Authors: Dai Xiao Qiang , Zhao Lin , Shi Zhen
Published: October 2013

In order to improve the reliability and accuracy of inertial navigation system in some navigation applications, the redundant inertial measurement unit (RIMU) is used. In this study, an optimal sensor fusion is introduced, and drift compensation based on this sensor fusion is presented subsequently. And the sensor fusion and drift compensation are combined into one algorithm. In this algorithm, faulty drift sensors are not isolated, but are compensated. So the redundant inertial navigation system can maintain systems redundancy. An errors model of RIMU was derived firstly, the optimal sensor fusion and the drift compensation algorithm were introduced secondly, and several simulations were carried out and proved effective of the proposed algorithm lastly.
Study on Image Corner Extraction Based on the Improved Canny Edge Detector
Authors: Chen Ming Ming , Lei Zhi Yong , Lei Ming
Published: October 2013

In computer vision system, the corners position need to be extracted from plane plate image. This paper presented a novel algorithm that improved the accuracy of corner detection from pixel to sub-pixel. The Canny operator was used to detect the corner edge pixels, and Gaussian filter was substituted by the bilateral filtering. It can remove noise and retain more slight edge information. Then, the corner edge pixels were transformed by Zernike moment and the sub-pixel edges of the corner were getted. Finally these sub-pixel edge points were linearly fitted and it was resulted in the corner coordinates of the intersection of two fitting straight lines. The experimental results show that the proposed method improves the corner detection precision to 0.1 pixel.
A Pattern Recognition Method Based on Modified Perception Algorithm
Authors: Zhang Yong Hong , Cao Jian , Li Qing Chen , Wang Qi
Published: October 2013

A pattern recognition method based on modified perception algorithm was proposed in this paper. The principle of this method is minimizing the sum of distance between the wrong classified samples and the interface of different categories, and then the iteration was done with information contained in the minimized errors. The experiment shows that the proposed method can classify the images from Yale, ORL and actual face databases accurately and effectively. The main advantage of the method is that the algorithm is convenient for computer programming, and the recognition rate and recognition time have been distinctly developed.
Study on Dynamic Characteristics of Feed Systems with Single and Double Ball Screws
Authors: Ding Xi He , Zheng Jian Yong , Yuan Jun Tang , Wang Zhen Hua
Published: October 2013

As the executive component of CNC machine tools feed movement and auxiliary motion, feed system plays an important part in ensuring the positioning accuracy, sensitivity and stability. By taking single-screw-drive feed system and double-screw-drive feed system of CNC as the object of study, two-degree-of-freedom vibration models of them are established to analyze the dynamic characteristics, and further calculate modal vibration modes and natural frequencies. The finite element analysis models of the two systems are also established, concerning the influence of joint surface, vibration modes and natural frequencies are obtained by means of modal analysis. By comparing the simulation results and the calculated data, the feed systems vibration modes and natural frequencies can be accurately calculated by the proposed vibration models, and the relative errors of corresponding vibration frequencies are controlled within 15%.
3D Subtitles Superimposed Technical Overview
Authors: Zhang Xin Yao , Li Shao Bin , Lan Shan Zhen , Wang Jing
Published: October 2013

3D video can bring better viewing experience than traditional one, and in recent years has been developing rapidly. But the caption viewing has become one of the elements that impact on the viewing effect as well as the causes of visual fatigue. This paper introduces the overlay process of 3D subtitles, and carefully analyzed and summarized 3 D subtitles technology research from both domestic and overseas and finally summarized its proposed future research directions.
Learning Facial Expression Codes with Sparse Auto-Encoder
Authors: Hu De Kun , Duan Gui Duo
Published: October 2013

A sparse auto-encoder model was trained to extract the code of different facial expression, which comprises four encoder layers and three decode layers, the representation locating in the fourth layer (code layer) is the features expected. With large amounts of patches randomly selected from training faces, the model was trained firstly via backpropagation which minimizes an unsupervised sparse reconstruction error, and then a softmax classifier was learned for supervised classification. The input vector for the classification is the feature of facial image induced by the learned sparse auto-encoder and two key operations (convolving and pooling). Using a small number of hidden units per layer and a relatively small number of training set, the proposed model achieves excellent performance in the experiments.
Liver Parenchyma Segmentation by FCM-Based Confidence Connected Region Growing Method
Authors: Sun Yong Xiong , Huang Li Ping , Liu Li Peng , Guan Tie Jun , Huang Qiu Yang
Published: October 2013

A FCM-based segmentation algorithm is proposed in this paper to improve the accuracy and efficiency of liver parenchyma segmentation. The proposed segmentation method consists of four steps as follows:First,we characterized the gray distribution of the unfiltered image. Second, combined with the Otsu algorithm and associated with a cropped liver image, we defined a gray interval as the livers intersity range. Third, The fuzzy c-means clustering algorithm was applied to define the confidence interval of traditional confidence connectivity method. Finally, we employed the improved confidence connected algorithm to extract the liver parenchyma from a large cross-section liver image. Experimental results show that the proposed segmentation method is feasible even for diseased liver images.
Center-Symmetric Local Nonsubsampled Contourlet Transform Binary Pattern Histogram Sequence for Face Recognition
Authors: Huang Rong Bing , Liu Xiao Qun
Published: October 2013

In order to alleviate the effect of illumination variations and improve the face recognition rate, this paper proposes a novel non-statistics based face representation method, which is called Center-Symmetric Local Nonsubsampled Contourlet Transform Binary Pattern Histogram Sequence (CS-LNBPHS). This method first applies NSCT to decompose a face image, and obtains NSCT coefficients in different scales and various orientations. Then, CS-LBP operator is used to get CS-LBP feature maps from NSCT coefficients. After that, feature maps are respectively divided into several blocks, the concatenated histogram, which are calculated over each block, are used as the face features. Experimental results on YaleB, ORL face databases show the validity of the proposed approach especially for illumination, face expression and position.
A Design of Underwater Acoustic Signal Acquisition Module
Authors: Bian Hong Ning , Li Yong Ming , Wei Lan Lei , Liu Zhao
Published: October 2013

This paper introduced a underwater acoustic signal acquisition module which used preamplifier, filter plate and the digital circuit board collect original data for 20 Hz to 1K Hz frequency data through acoustic vector hydrophone .It could send the collected data to the PC on the coast through wireless data transmission radio station and store the collected original data d into the SD card as well.
Research on Weak Signal Detection by Adding Noise to Cascaded Stochastic Resonance Step by Step
Authors: Tu Shui Lin , Wu Zheng Yang , Wu Zhen Yi
Published: October 2013

In view of the fact that after excitated by weak signal under background of noise the action of transition between potential wells of bistable system cannot occur or occasionally happen, this paper puts forward a method of weak signal detection by adding noise to cascaded stochastic resonance step by step. In this method the output signal of the former bistable system whose transition between potential wells occasionally occurs is converted into a local oscillation within an unilateral potential well step by step, then DC component is removed, a moderate intensity of Gaussian color noise is stacked and then by utilizing energy transfer functions of bistable system, gradually the signal is enabled to overcome the critical value of the latter bistable system and transition of frequency synchronization between potential wells is produced for signals to be tested. The simulation results of weak sinusoidal signal and periodic impact signals detected under the background of noise show the feasibility of this method.
Manipulation of Microparticles Using Acoustic Standing Wave: Recent Trend
Authors: Yin Hai Yan , Zuo Chun Cheng , Wang Hong Cheng , Meng Yan Ping
Published: October 2013

Ultrasonic standing wave (USW) manipulation of suspension microparticles separation has attracted wide attention due to its non-direct contact, being harmless to the particles, easy to manufacture, low energy consumption and high separation efficiency. USW is widely used in industrial processes, environmental assessment, biochemical analysis, clinical diagnosis and other fields. In this article, particles stress and movement process is analyzed, meanwhile, aggregation and separation of the particles is discussed respectively and the future direction of development is pointed out.
Estimates for Multilinear Hilbert Operators on Morrey Spaces and the Best Constants
Authors: Gao Wen Hua , Ye Pei Xin
Published: October 2013

Estimates for multilinear Hilbert operators on central Morrey spaces and Morrey spaces are obtained.The best constants for the Hilbert operators on Morrey Spaces is obtained, under some condition.
The Dynamic Characteristic Analysis of Full Hydraulic Steering System in Large Mining Truck
Authors: Yong Jiang
Published: October 2013

The SGA170 mine truck was used as research object, the full hydraulic steering system and it's dynamic characteristics was simulated by the AMESim, the characteristics and simulation curve of the steering system and the steering mechanical under various conditions was obtained, which provided theoretical reference and technical support to the design and analysis of full hydraulic steering system of the heavy-duty mine truck, and has important value in the engineering.
Personalized Recommendation Research in E-Learning Systems
Authors: Wu Bing , Chen Ping Ping
Published: October 2013

The purpose of this paper is to review the literatures which have made an explicit study on personalized recommendation in E-Learning systems. By identifying the important research areas, which are in different perspectives, firstly, filtering recommendation is introduced before the illustration of how it has been developed in E-Learning systems. Then personalized recommendation is proposed for E-Learning system. Although social network is the basic way to improve the communication efficiency with others in E-Learning system, previous studies pay less attention on this. Therefore social network analysis should be taken into consideration for the recommendation in E-Learning system for further research.
Fault Diagnosis for Aircraft Engine Based on SVM Multiple Classifiers Fusion
Authors: Tian Feng , Li Wen Jie , Feng Zhi Gang , Zhang Rui
Published: October 2013

Support vector machine (SVM) could well solve the over-learning and the low generalization ability of the neural network. But the single classifier cannot achieve satisfactory recognition rate and anti-interference ability. An aircraft engine fault diagnosis method based on support vector machine multiple classifiers is proposed in this paper. Firstly, sample characteristic information which constitutes the fault feature vectors obtained from the existing engine fault. Then, after training the SVM multiple classifier by faulty feature vectors, the SVM model of the fault diagnosis system is established; Finally, the trained SVM multiple classifier is used to recognize and classify the test faults. Applying the noise on the test samples, SVM multiple classifiers can still get a good diagnosis effect. It shows that the fault diagnosis algorithm has good robustness and can be applied to the study of aero engine fault diagnosis.
Public Opinion Hotspot Discovery Algorithm Based on Fuzzy Clustering LDA
Authors: Wan Hong Xin , Peng Yun
Published: October 2013

The discovery of public opinion hotspot is an important aspect of public opinion research, and because many similarities and relevance exist between hot topics, we propose a hot topic clustering algorithm to find the hotspot in public opinions. Since fuzzy set can handle non-precision data well, the fuzzy algorithm can reduce the influences of the uncertainty of public opinion data. Based on LDA topic extraction we cluster the topical words by fuzzy method, and take the topic probability as word membership to the cluster. It can reduce the noise data and improve the ability of hotspot discovery that aggregate the similar and related topic to one class. The topical key words with high probability in cluster are the hotspot, and singular cluster with few words can be looked as outlier. The algorithm is demonstrated by example analysis in detail.