bluuebunny/crossref_metadata_2025 huggingface dataset:
The Analysis of Torsional Vibration of Coiler Drive System
Authors: Sun Xue Wen , Yang Hai Bo
Published: November 2013

Coiler is a very important equipment in the aluminum cold rolling production line. It plays an important role in improving the quality of the strip. In this essay, taken the aluminum cold rolling coiler drive system as the research object, in order to studying its dynamics characteristic, three-dimensional model has been built based on the finite element method. With the model, the aluminums weight has been verified, frequency and modal have been discussed, and the dangerous speed zone has been built by the first frequency. The result could serve as theoretical base for coiler design and manufacturing process.
CFD Numerical Simulation of Aeolian Vibration of Single Conductor Based on the ADINA
Authors: Xia Ying Pei , Rui Xiao Ming , Yang Lei , Wang Da Da , Liang Jun Yu
Published: November 2013

In order to research the problem of Aeolian vibration occurred on single conductor in this paper, ADINA program was applied to set up the model of fluid domain and structure domain. Fluid-structure interaction (FSI) analysis was taken based on the coupling models, from which the property result of Aeolian vibration numerical simulation was acquired. Meanwhile the method taken to analyze the question of conductors Aeolian vibration was testified to be correct in the paper.
Mechanical Analysis and Modeling for Tricopter
Authors: Yang Yang , Xiang Li Ling , Liu Zhi , Cui Jin Feng
Published: November 2013

Distinguished quadrotor , the research of tricopter is still in undeveloped state. This paper focuses on torque analysis and mathematical modeling for attitude control of the tricopter aircraft. The simulation of controller shows that the PID method can not achieve the desired states, so the research of building the mathematical model provides some theoretical foundation for controlling the tricopter.
Random Vibration Analysis and Structural Modification of Satellite-Borne Equipment
Authors: He Er Ming , Yin Ge Liang , Hu Ya Qi
Published: November 2013

In order to study the random vibration responses of satellite-borne equipment, the finite element model of satellite-borne equipment was established and its random vibration analysis was performed by ANSYS. The results showed that the stress of key part was too large to meet the strength requirement. The structural design was modified based on the stress analysis results. At the cost of adding 1.03% weight, we find the fundamental frequency of the modified model is increased by 14% and the maximum 1˰σ von Mises stress is decreased by 30%, which verify the correctness of the modification method. This analysis and modification method also can be applied to modify other satellite-borne equipments to shorten the development period and reduce the design cost.
Elution Separation of Polygonum Multiflorum Extract under HPLC Isocratic Elution
Authors: Wang Tao
Published: November 2013

In this experiment, the effective compounds of Stilbene glucoside and anthraquinones from polygonum multiflorum extract were separated under HPLC isocratic elution. SinoChrom ODS-BP C18 is selected as chromatographic column. The optimal experimental conditions under 320nm and 254nm wavelength UV detector include the column temperature: 28°C, mobile phase: methanol/water, and flow rate: 1.0ml/mol. All as above, we can draw a conclusion that the technology of stilbene glucoside extraction is successful , the main ingredients of fleece-flower root extract can be effectively separated because the purity of the samples is extraordinary high. Simultaneously, this article provides significant reference values for the preparation and quality control of related new drugs.
Transient Heat Transfer Analysis of a Micro Heat Exchanger
Authors: Qian Zhong , Wang Hai Min
Published: November 2013

The research object is a micro heat exchanger (MHT) applied in chip cooling, a three dimensional simulation model is developed to analyze the transient heat transfer of the exchanger according to both exponential and periodic heat fluxes. Based on the computational results of the profiles of temperature and thermal stress, a comparison of performance of heat exchangers made of copper and silicon nitride compound is carried out. The results indicate that the capability of a copper heat exchanger is better than that of a silicon nitride exchanger under low load working condition due to the excellent thermal conductivity of copper. However, with large load fluctuations, the advantage of structure strength of compound makes the exchanger attractive since it has lower thermal stress and could guarantee a long-term stability. The efforts of this paper are referable for further research and development of micro heat exchangers.
Research of Gear Shift Control Technology for a New 8-Step Speed Automatic Transmission
Authors: Liu Yang , Wang Shu Han , Lu Xi , Song Ting Bin , Wei Wen Shu , Xu Xiang Yang
Published: November 2013

For the development research for a new 8 step speed automatic transmission, a simplified dynamic model for this transmission was established. Aimed at four basic shift types, the ideal characteristics of shift clutch and engine control were set up. By using torque estimation method, PI slip control algorithm and engine coordinated control principle, the control model were developed for two main shift phases which are torque phase and inertia phase. The test on the rig and vehicle verified the accuracy and feasibility of this shift control strategy. The development model and algorithm have a high value for engineering application.
The Robot Wrist Sensor Dynamic Mode Building Method Based on Genetic Wavelet Neural Networks
Authors: Yu A Long , Dai Jin Qiao
Published: November 2013

A kind of new dynamic modeling method is presented based on improved genetic algorithm (IGA) and wavelet neural networks (WNN) and the principle of algorithm is introduced for a new type robot wrist force sensor. The dynamic model of the wrist force sensor is set up according to data of the dynamic calibration, where the structure and parameters of wavelet neural networks of the dynamic model are optimized by genetic algorithm. The results show that the proposed method can overcome the shortcomings of easy convergence to the local minimum points of BP algorithm, and the network complexity, the convergence and the generalization ability are well compromised and the training speed and precision of model are increased.
Influence of SiO2 Particles on the Defoaming Performance of Silicone Oil Emulsion
Authors: Chen Chen , Ren Zhi Rong , He Yong Jun
Published: November 2013

The defoaming agent of silicone oil emulsion containing hydrophobic SiO2particles was prepared. The effect of different diameters of SiO2particles and amount of SiO2particles in the emulsion on the defoaming performance was studied, and the mechanism of defoaming was analyzed. The experimental results showed that when the amount of hydrophobic SiO2particles in the emulsion was 1%, the emulsion had good defoaming performance; The emulsion containing nanometer sized SiO2particles showed better defoaming performance than that of the emulsion containing micrometer sized SiO2particles.
Study on Fault-Tolerant Control Scheme for a Helicopter via Adaptive H∞ Control
Authors: Chen Xi , Chen Fu Yang , Jiang Bin
Published: November 2013

In this paper, the stabilization problem for the 3 Degree of Freedom (3-DOF) hovering system of Quadrotor with actuator faults is investigated. To handle the helicopter system, an H robust fault-tolerant state feedback control is proposed. In addition, an adaptive method is combined with fault-tolerant H control to improve the flight performance. A more practical actuator fault is built, and the model of the system is presented. The design operates in Linear Matrix Inequality (LMI) technique. Finally, the design was verified on both MATLAB and 3-DOF platform to exam the feasibility and stability of the method.
Reactive Adsorption Desulfurization of Thiophene in n-hexane over Oxides Adsorbent of NiO-ZnO/Al2O3-SiO2
Authors: Hou Xiao Ming , Shen Ben Xian , Zhao Ji Gang
Published: November 2013

The oxides adsorbent of NiO-ZnO/-Al2O3-SiO2 was prepared by co-precipitation method. SEM, XRD and BET studies were performed to understand the structural properties of the adsorbent. And the adsorbent can be used for the desulfurization of thiophene in n-hexane as model gasoline. Removal rate of thiophene increased with increasing reaction time. Removal rate of thiophene in equilibrium decreases with increasing the initial concentration of thiophene. The extent of adsorption in adsorbent increased with increasing the initial concentration of thiophene. The removal rate of thiophene increases with increasing reaction temperature, it showed that the desulfurization is a chemical process not a physical process.
Methodology for Development of a Virtual Instrument
Authors: Jing Xue Dong , Xu Bin Shi
Published: November 2013

a generic methodology for development of a virtual instrument (VI) has been presented, which includes how to figure out the strategy of programming, which involves measure of converting measuring and testing scheme into VIs structure; how to design the control & diagram panels, how to correct measuring errors, and how to carry out debugging & simulating. An example is given to illustrate the successful application of the methodology to process monitoring of brush plating.
Experimental Study on the Effect of Density of EPS Buffer Layer on the Cushioning Property of Motorcycle Helmet
Authors: Wen Wei Cai , Fu Dong Ming
Published: November 2013

Build the model of motocross-style helmet with a dual - density and series-parallel EPS buffer layer and trial-produce helmet samples. Establish the impact experiment of the helmet model and obtain the values of HIC and Peak ACC based on the testing regulations of ECE R22.05. According to the analysis of the test results, the influence law of different EPS material densities to cushioning effect of the helmet was analyzed specifically. Experimental results show that the minimum values of HIC and Peak ACC can be obtained when the density of EPS is designed to be 0.06g/cm3; a dual - density and series - parallel EPS buffer layer has higher than 76 % of the energy absorption efficiency, and this buffer structure well reduces the values of HIC and Peak ACC, and provides effective protection for the head.
Development of a CAD/CAPP Integrated System for Metal Bellows Expansion Joints
Authors: Zhang Yan Fu , Wang A Chun
Published: November 2013

To meet the requirements of improving design efficiency and decreasing technique mistakes in the enterprise whose productions are customized by users, a method is introduced to develop CAD/CAPP integrated system. The functions of the integrated CAD/CAPP system developed according to this method include 3D modeling automatically assembled, 2D engineering drawing automatically drawn, process planning sheets automatically filled and parameters of key parts checked and optimized. This method is based on adding special features to the 3D modeling. An example CAD/CAPP integrated system of Metal Bellows Expansion Joints (MBEJ) is developed by using VisualBasic6.0 based on SolidWorks platform. This system can design MBEJ part parameters per GB/T12777 standard. These parameters have been used to generate MBEJ 3D models, engineering drawings and processing planning sheets automatically. All the functions have been integrated in SolidWorks software environment. The drawing paper and processing planning sheets can be modified manually to satisfy special demand.
Design of Shipborne Reducer Box Damping in Reducing Vibration
Authors: Li Wei Sheng , Lu Pan
Published: November 2013

The structure noise of marine gear reducer seriously affects the concealment of ships, the stability of transmission system and comfort of crew's working environment. There are many ways to control structural vibrations, in which adding damping structure into reducer box is an effective measure to restrain the resonance. Aiming at the excessive vibration of box 240569 node, this paper realized the design of damping reducing vibration with the method of shell structure damping design finite element. Finally, the authors verified vibration during box reducer normal operation through harmonic response analysis.
Reeved Tooling Design and Finite Element Analysis on Stators of a 400MW Generator
Authors: Xin Shao Jie
Published: November 2013

Aiming at the time and labor issues that exist when reeved tools are used to reeve stator cores of different sizes in the case of 400MW gas generator, this article gives a new tooling structure design based on parallel double-crank mechanism for 400MW generators. The tooling enables fast transition between reeving internal and external stators of two different sizes. Three-dimensional modeling and virtual assembly are completed based on software UG, and finite element analysis of tooling structure is performed using software ABAQUS. The results indicate that this newly-designed reeved tooling has a reasonable mechanical structure and its mechanical behaviors meet the design requirements.
3D Design and Performance Analysis of Weft Insertion Mechanism of Carbon Fiber Multi-Layer Loom
Authors: Li Dan Dan , Yang Jian Cheng , Wang Hua Qing , Yang Kai , Qin Jian Feng , Bai Yu , Hu Shuang Hu , Jiang Xiu Ming
Published: November 2013

The design and research of weft insertion mechanism of carbon fiber multi-layer loom which has the great significance for the development of modern 3D weaving equipment. According to the special requirements of carbon fiber multi-layer weaving fabric, a multilayer weft insertion system incidental finding device is designed, which can be satisfied with multi-layer weft insertion according to the change of shedding position and different layers. In order to meet the sword belt and lifting gear running smooth, kinematic and dynamic analysis and static simulation have been done. Analysis results show that institutions satisfy all work requirements, and have important guiding significance for material selection of components.
Simulations and Analysis of the Moving Mask UV Lithography for Thick-Photoresist
Authors: Yu Qian , Zhou Zai Fa , Zhang Heng
Published: November 2013

A three-dimensional (3D) simulation system is developed for the moving mask UV lithography of thick photoresist. The exposure simulation model is obtained with consideration of the mask moving function, the refraction and energy loss of the UV light at the surface of photoresist, and the reflection at the photoresist/substrate interface. The development model is calculated by the fast marching method. In addition, the energy deposition distributions and the three-dimensional development profiles are presented under different conditions to study the effect of various parameters and to verify the accuracy by experiment. The results will be useful to understand the effects and to control the exposure conditions in the design process of moving mask UV lithography for thick-photoresist in the future.
Primary Investigation of Networking Industry's Development
Authors: Wang Mei Yan
Published: November 2013

States regarded the IOT referred to the national strategic development of information technology, In the chip, communication protocols, network management, collaborative processing, intelligent computing and other fields China has made many achievements, but the strength should be introduced to a number of leading IOT enterprises to form perfect technology system; innovative market-oriented operation mechanism, the formation of common, standard, self-controlled application platform, the formation of resource sharing, complementary advantages of IOTpublic support service system.
Improvements and Implementation of Integrated In-Vehicle Monitoring System
Authors: Chen Wen Jie
Published: November 2013

An In-Vehicle Monitoring System (IVMS) monitors the location and status of the remote vehicle status. In this paper, we introduce an integrated IMVS suit for various vehicles types. Based on the state of art IMVS, this system realized some improvements on it. These improvements include report interval, fuel consumption, spotting the target, administrative boundary electronic fence, and big data. These improvements amplify the practicability, expand the use scope and improve the efficiency of IVMS.
Architecture for Vertex Transformation and Triangle Clipping in 3D Graphics
Authors: Liu Bo Zhi , Sun Tao , Zhou Li , Wang Jia , Zhang Yuan Zhi
Published: November 2013

This paper focuses on the implementation of vertex transformation and triangle clipping in the field of 3D acceleration. A dedicated matrix accumulating architecture is proposed to multiply transformation matrices and generate an accumulated transformation matrix. Then the accumulated transformation matrix is used for per vertex transformation. A combined clipping algorithm of Cohen-Sutherland and Sutherland-Hodgeman is adopted to accelerate triangle clipping. In addition, the clipping process is pipelined in order to increase the throughput. Experimental results show that our implementation can reach more than 25% performance higher than traditional method.
A 18.4M Triangles/s 122.6 mW Tile Co-Processor for Embedded GPU Systems
Authors: Wang Jia , Sun Tao , Zhou Li , Zhang Yuan Zhi , Gao Yuan Yuan
Published: November 2013

This paper presents an efficient and accurate tile co-processor architecture which can be used in the tile based rendering systems. The design involves two key components, the vertex processing unit and the triangle tiling unit. The former part is used to get the vertices transformed, clipped and projected to generate the triangle list which located in the view frustum while the latter one reads in the triangle data and determines the tile list which indicates tiles that each triangle covers. A modified Bounding BOX (BBOX) test pipeline and a mask screening technology for different overlap types is proposed and employed in the design in order to get faster triangle binning with lower power consumption. The proposed architecture works at the frequency of 270 MHz, gains 18.4 M triangles tiling/sec with a power consumption less than 122.6 mW. The chip is implemented in 0.13 um CMOS technology and consumes 2.5 x 2.5 mm2 totally.
A Method of Pepper Plant Modeling and Animation Set-Up in Autodesk Maya
Authors: Chen Fang Yi , Chen Tian En , Wang Wei , Ma Xiao Jing
Published: November 2013

Virtual crop models and animation make great significances to agricultural researches. But to recreate the structure and dynamic is often a hard and laborious task. Most existing plant-modeling systems require the user to have specific biological knowledge about plants, but its often the 3D artists who do the work. This paper discusses a method of plant modeling and rigging in Maya, which has already been familiar to 3D artists and has advantages in industrial production pipelines. The method takes pepper plant for example, dividing the problem into organs and the growth patterns, and using Maya modeling and animating system to simulate the topological structure and growth dynamic. It set up the geometry with controls which are easy to use. The result can be conveniently exported to projects. This approach helps prepare the research of variety plant modeling and animation plug-in for Maya.
The Application of Network-Aided Teaching in College Deaf Students
Authors: Wang Yan , Han Mei , Zhang Xue Hui
Published: November 2013

The traditional classroom teaching has lots of disadvantages, implement of network-aided teaching brings new hope to the development of special education. By comparing and analyzing the three forms of network-aided teaching for deaf students in colleges, a new approach of improving classroom teaching quality is explored according to their own characteristics.
WebRTC-Based Video Communication Application
Authors: Yang Meng Ying , Wen Zhi Gang , Fan Chun Xiao , Ji Yang
Published: November 2013

On the basis of introducing the development of WebRTC technology and the application type of traditional video communication, this paper proposed a new video communication system based on WebRTC and discussed the frame designing and working process in detail. This system can overcome the shortcomings of complicated deployment, cockamamie operations for users, protocol without openness or standard, etc. It does have a better user experience.
Parameter Selection of SVR Based on Improved K-Fold Cross Validation
Authors: Wang Ju E , Qiao Jian Zhong
Published: November 2013

This article firstly uses svm to forecast cashmere price time series. The forecasting result mainly depends on parameter selection. The normal parameter selection is based on k-fold cross validation. The k-fold cross validation is suitable for classification. In this essay, k-fold cross validation is improved to ensure that only the older data can be used to forecast latter data to improve prediction accuracy. This essay trains the cashmere price time series data to build mathematical model based on SVM. The selection of the model parameters are based on improved cross validation. The price of Cashmere can be forecasted by the model. The simulation results show that support vector machine has higher fitting precision in the situation of small samples. It is feasible to forecast cashmere price based on SVM.
Change-Points Detections for Interrupted Time Series Analysis: A Literature Review
Authors: Chen Jing Bo , Zheng Jun Bao , Yang Lei , Wang Ya Ming
Published: November 2013

General review of Change-Points detection methods applied in Interrupted Time Series Analysis for recent years. Articles from domains like meteorology, hydrology, stock analysis, sequences mining et al. are compared together. The literatures range from the 1980s to 2013. The methods are generally classified in Parametric, Semi-Parametric, and Nonparametric. Some non-statistical methods are also mentioned in this review. Characters of each method are briefly summarized. As all methods mentioned in this review share a common purpose that to detect change-points, most of them can be used in other domains after some proper adjustment.
State Evaluation of Diesel Engine Using Genetic Algorithm for the Feature Selection and Optimize
Authors: Liu Min Lin , Liu Bo Yun
Published: November 2013

As for diesel engine fault diagnosis, it is more difficult to select the appropriate feature. In the paper, using the main parts state such as cylinder, piston and piston ring to diagnosis the fault of diesel engine. Eigenvalue is vital to the precision and efficiency fault diagnosis, the normal method to find the fault diagnosis eigenvalue is simulation experiment. Since the number of experiment cannot be too much, bootstrap is introduced in the paper, then using Genetic Algorithm, an optimum parameter combination has been received.
One Hand Tracking Algorithm Based on Behavioral Model of Grasping Object and Particle Filter
Authors: Gao Jian , Feng Zhi Quan , Song Xian Hui
Published: November 2013

A novel human hand tracking algorithm based on a single-view camera is put forward. First, we remove the deformity gesture before tracking employing hand physical constraint and motion constraint. Second, we get data from digital glove in the process of hand grasping object, then we obtain the polynomial law of joint motion by analyzing the data to reduce the dimension. Finally, we fuse the behavioral model and optimized particle filter to improve the result of tracking. The innovation of this paper is to establish the behavioral model of grasping object. The experiments show that the proposed algorithm can track movement of hand accurately and quickly.
A Novel Adaptive Integrated Navigation Filtering Method Based on ARMA/GARCH Model
Authors: Zhao Xin , Qin Hong Lei , Cong Li
Published: November 2013

This paper proposes a novel adaptive integrated navigation filtering method based on autoregressive moving average (ARMA) model and generalized autoregressive conditional heteroscedasticity (GARCH) model. The main idea in this study is to employ ARMA/GARCH model to estimate statistical characteristics of filtering residual series online, namely, the conditional mean and conditional standard deviation, and then the filter parameters are adaptively adjusted based on forecasted results of ARMA/GARCH model in order to improve the reliability of the system when there are abnormal disturbance and other uncertain factors in real condition. On this basis, experiment is used to verify the validity of the method. The simulation results demonstrate that the ARMA/GARCH model can well capture the unusual condition of GPS receiver output, and this adaptive filtering method can effectively improve the reliability of the system.
Design of Vehicle Monitoring Software Based on Video
Authors: Wei Wei , Su Hai Jian , Hu Zhong Qin , Zhou Yu Jing , Yin Jiang , Liu Dong Hai
Published: November 2013

With the rapid development of multimedia technology and internet, video surveillance technology has been widely applied to various fields of people's daily life, and it is important to study the application of video surveillance in intelligent traffic . Object: The design is for traffic video monitoring, and the traffic lights can be controlled through the video processing technology. Studying the relevant information obtained from the traffic video, the traffic lights can be controlled. Step: First, use the improved frame difference method, which is called as finite difference method, to pick up moving vehicle. Then, remove the noise using dilation and corrosion algorithm, which belong to mathematical morphology operation. Finally, count the vehicle data using the virtual loop method, and return the traffic flow information which acts as reference information of traffic lights controlling.
A Smoothing Method for Solving the NCP Based on a New Smoothing Approximate Function
Authors: Meng Wei , Tian Zhi Yuan , Qu Xin Lei
Published: November 2013

A new smoothing approximate function of the FischerBurmeister function is given. A modified smoothing Newton method based on the function is proposed for solving a kind of nonlinear complementarity problems. Under suitable conditions, the global convergence of the method is proved. Numerical results show the effectiveness of the method.
An Overhead Conductor Weighing Sensor Based on Fiber Bragg Grating
Authors: Liang Shi Bin , Yang Hong Lei , Miao Xue Peng , Cao Min , Chang Ming
Published: November 2013

Snow and ice disasters on power system safe and reliable operation of the transmission line has a great threaten.An overhead conductor tension sensor based on fiber Bragg grating is developed.The sensor contains a strain sensor module and a temperature compensation module which can offer temperature compensation for strain sensing module.The sensor connected to the tower and the insulator with metallic clamps.If there is ice on the transmission line,the tension of the sensor sensing module of the center wavelength will corresponding change,and the ice condition of the transmission wires can be reflected by the center wavelength variation.Experiment indicates that the tension sensitivity coefficient of the sensor is 9.8 pm/kN,the repeatability error is 1.78% FS,the nonlinear error is2.4% FS, the hysteresis is 1.5% FS.
Design and Structural Analysis of the Solid-State Recorder for Missile Flying Parameters Recording
Authors: Feng Lei , Ma Tie Hua
Published: November 2013

While the flying test of the missile, many kinds of parameters need to be recorded and the recording instruments are working in harsh environment. For this particular application a Solid-state recorder had been designed for obtaining and recording flying parameters of the missile, including data acquisition module, power management module, the central control module, a data storage module, the reading interface module, etc. Meanwhile, analyzed structures of the Solid-state recorder and completed thermal analysis and impact stress analysis of the structure using finite element analysis software ANSYS. The results had shown that the recorder can survive well in the flying test of the missile and the recorder had been applied to the actual trial and got accurate and reliable data.
Flux Observation Used in Permanent Magnet Synchronous Motor Sensorless Control System
Authors: Li Yu Quan , Zhang Zhen , Wang Wei , Wang Xiao Gang , Zheng Han Bo , Qu Shao Ping
Published: November 2013

Sensorless control system for Permanent magnet synchronous motor (PMSM) has been widely used in many areas for its simple installing and easy realizing advantages. This paper mainly analysis sensorless control system of PMSM, estimate the angel of rotor and speed based on flux observation initially, PLL and state observer were used to obtain the accurate angle. Use Simulation toolbox design of MATLAB to implement the simulation of control system and analyze the simulation results. The results verify the correctness and feasibility flux observation method that used in paper.
Algorithm to Eliminate the Influence on Multi-Frame Average from Date-and-Time Words OSD in Video Surveillance by Matlab
Authors: Liu Tao , Tao Dai Qin
Published: November 2013

Normal image processing, combined with automatic Matlab program, gives a way to deal with embedded date-and-time OSD in video surveillance. It has eliminated the influence on multi-frame averaging from date-and-time words occlusion. Results are applied in real cases and superior to ordinary multi-frame average method.
Design of Lower Computer System in Wireless Sensor Network for Monitoring of SF6 Moisture Content
Authors: Yang Hui
Published: November 2013

Aiming at the problems currently exist in the wire communication used in the monitoring of SF6 moisture content parameters, such as complex wiring structure, fixed data collection points and easy occurrence of monitoring blind spots, ZigBee wireless communication technology is adopted according to the characteristics of soft sensing of SF6 moisture content, which applies to the implementation of design scheme of lower computer system for the SF6 moisture content multi-data collection wireless sensor network. At first, collection of relevant data information such as absolute humidity, temperature and pressure of SF6 gas is achieved utilizing a variety of wireless sensors; then flexible increase of sensors is achieved using ZigBee communication protocol and hardware modules. Simulation data show that: the maximum wireless transmission distance of the present design is 110 meters, and the minimum transmission distance 60 meters on condition of presence of obstacles, furthermore, the transmission bit error rate is low; the design also has small monitoring error for SF6 gas parameters, and a good reliability.
Estimation of Salt-Pepper Noise in Images with Correlation Inspection
Authors: Li Tian Yi , Yuan Pei Gen , Yang Dong Yan , Hu Xi Yao
Published: November 2013

We proposed an approach for estimating the density of salt-pepper noise in images with correlation inspection. The correlation coefficients histogram was introduced in this paper to depict the correlation distributions of images. Based on the fact that the correlation distributions of natural images are nearly independent of individual images, we revealed how the correlation coefficients histogram of the noisy image deviates from that of natural image along with the noise density in qua- ntitative form, thus we took advantage of this relation to make estimation. Simulation results showed that the proposed approach outperforms those of existing methods.
A New Fusion Method of Multispectral and Panchromatic Image Based on NSCT and HIS Transform
Authors: Yang Jin Ku , Guo Lei , Yang Ning
Published: November 2013

A new multi spectral and panchromatic image fusion, which is based on Nonsubsampled Contourlet Transform (NSCT) and HIS transform, is proposed in this paper. First, I component was obtained from multispectral image through HIS transform. Second, coefficients were gained by fusion algorithm, which performed on I component and Panchromatic image by NSCT transform. Finally, the fusion images were received by inverse HIS transform on H and S component of multispectral image and . The experiment results show that the proposed algorithm not only preserves spectral information of original images well, but also enhances detail texture information in image fusion.
The MPS Reconstruction of Porous Media Using Multiple-Grid Templates
Authors: Du Yi , Zhang Ting
Published: November 2013

It is difficult to reconstruct the unknown information only by some sparse known data in the reconstruction of porous media. Multiple-point geostatistics (MPS) has been proved to be a powerful tool to capture curvilinear structures or complex features in training images. One solution to capture large-scale structures while considering a data template with a reasonably small number of grid nodes is provided by the multiple-grid method. This method consists in scanning a training image using increasingly finer multiple-grid data templates instead of a big and dense data template. The experimental results demonstrate that multiple-grid data templates and MPS are practical in porous media reconstruction.
Force-Position Adjustment Design of Tractor Hitch System Based on DSP CCS
Authors: Xu Huang , Lu Zhi Xiong , Song Yan Dong , Pang Hong Lei
Published: November 2013

Tractor electro-hydraulic hitch system is designed with force-position adjustment function. The method of force-position adjustment is proposed. Under the CCS development environment in DSP, system modules are designed according to the characteristics of TMS320F2812, including raise and drop modules, force-position adjustment module. The feasibility of the design is verified by system simulation.
PLC Counter Applications Technique
Authors: Zhao Jing , Zhang Hua
Published: November 2013

This paper described the functions of PLC counter instructions, analyzed and interpreted typical PLC counter ladder logic programs, applied the PLC counter function and associated circuitry to control systems, and applied combinations of counters and timers to control systems. The ladder diagrams had been verified in Panasonic FP1-C72PLC control unit, and you could use them directly.
The Research of Glass Furnace Commutation Control System which is Based on Fuzzy Neural Network
Authors: Han Xue , Chen Jian
Published: November 2013

In this article, a new combustion control program would be introduced, which is planned to use fuzzy neural network for intelligent analysis of temperature variation on end fire glass furnace. This program would be adapted to regenerative end fire glass furnace. The actual running of system indicates that the system is in good effect and suitable for the production technology very well.
Design Implementation of Remote Monitoring and Data Acquisition for Solar Water Heating Control System
Authors: Zeng Li Li
Published: November 2013

The paper discusses the implementation scheme and software design that applies web technology into real-time remote monitoring system. Software design of monitoring system mainly includes design of serial data acquisition software and web-based remote monitoring software. Serial software acquires related data of solar heating system via RS-485 serial port and realizes storage of data. Web-based remote monitoring is in C/S mode, and users can browse and search data of solar water heating control system in real-time by using browser. The design scheme is a success in implementation of solar water system in campus, and realizes automation integrated with control, management, information and network through a combination of control network and Internet.
A Novel High Frequency Isolated Feedback Generator with SOI Process
Authors: Xu Xin , Sun Mao Mao , Jiang Jun
Published: November 2013

This paper mentioned the design of an isolated feedback generator with SOI process. This generator adopts 40V SOI technology and it integrates reference, high frequency oscillator, error amplifier and modulator, meanwhile this generator predigests the mission of designing for the closed loop feedback of the switching power supply which types are the isolated and primary controlled. Along with the developing of the power conversion, this circuit is specially designed for high reliability, high capability and anti-radicalization applications.
The Multiport Analysis of Microstrip Circuits Using Gaussian Green’s Function Method
Authors: Sun Hong Wei
Published: November 2013

The microstrip circuits are analyzed using the Gaussian Green’s function method (GGF) together with network analysis method. The main advantage of the GGF lies in its precision as well as rapid convergence. The multiport network analysis of microstrip circuits can effectively reduce the complexity of the modeling. A novel method is derived by combining of the multiport network analysis and GGF. To demonstrate the versatility of this method, the current distribution of two microstrip filter circuits is achieved by this method. The results are compared with the results of the commercial full-wave software of Ansoft Designer. It is shown that this method is much more accurate and valid.
Wireless Network Video Collection and Transmission Based on ARM
Authors: Qiao Shou Ling
Published: November 2013

Wireless video collection and transmission system has been widely used in many remote video monitoring system and portable equipment. This system was to use S3C2440 as the main control chip, through the Z301P for camera collection video, and through the wireless network card RT3070 chips for video wireless transmission. We uploaded collected video to Mozilla Firefox, and then wireless network video collection and transmission system was built quickly.
Design of a Digital Audio Player Based on μc/Os and μc/GUI
Authors: Li Shao Yuan
Published: November 2013

At present, with the rapid development of digital audio technology, high speed and high performance digital audio processing technology faces an important issue. This paper proposes and designs a digital audio player combined with digital audio and embedded systems two cutting-edge technology. Hardware circuitry takes STM32F103VE as the main controller, configurated with VS1003 audio decoder chip and the corresponding SD card storage module, LCD module, power supply module and so on; software design transplants embedded operating system μC / OS. This paper takes advantage of μC/GUI to design audio player graphical user interface, improves the human-machine interface friendliness and aesthetics greatly.
The Application of PLT-22 in the Intelligent Local Controller
Authors: Li Fang Yuan
Published: November 2013

The intelligent local controller integrates a Neuron processor core with a power line transceiver, making them ideal for the automatic meter reading system. Essentially a system-on-a-chip, the intelligent local controller features a highly reliable narrow-band power line transceiver, an 8-bit Neuron processor 3120 core for running applications and managing network communications, a choice of on-board or external memory, and an extremely small form factor all at a price that is compelling for even the most cost-sensitive consumer product applications.
The Study on LED Accelerated Life Testes and Failure Mechanism
Authors: Zhang Yue Zong , Li Chun Xia , Zhang Wen Bin
Published: November 2013

The paper is studied on the performances of low power light-emitting diode and high power LED under high-current. After observing and measuring the degeneration of them, the Analysis of the failure mechanism is given. The degenerations of the optical parameter, electronic parameter and thermal parameter of high power LED under 600mA current stress are measured and the failure mechanism is analyzed. The I-V characteristic curve proves that the degeneration is happened in active region. Under high-current stress, the active region of high power LED is ageing which leads to much more defects. The degenerations of pins on the resin package, metal wire and surface layer metal pads are found with scanning electron microscope.
A Review of the Research in Measurement Error Models
Authors: Jiang Yu Ying , Liu Qiang
Published: November 2013

The measurement error models or EV(errors-in-variables) Models have been widely promoted in the field of statistics since 1877. According to the characteristics of the errors in variables, EV models can mainly be divided into three types: the additive model, the general measurement error model and berkson measurement error model. The emphases of researches in the EV models mainly focus on the effects of model estimation, hypothesis testing and model selection. In this paper, we concentrate on the research by conducted a systematic review of EV Models, in order to make a reference for researchers and practitioners.
Chaotic Communication Based on Chaotic Pilot Signal for Synchronization Control
Authors: Li Guo Hua
Published: November 2013

Analyzing the problem of the existed chaotic masking secure communication, given a new chaotic communication method with the separation between chaos synchronization control signal and chaos modulated signal. A chaotic pilot signal is used independently to synchronize the chaos of the communication transceiver, it is a better solution for the original chaotic communication systems in which the information signal is much smaller than the chaotic modulation signal and anti-noise performance is poor. The circuit simulation based on Sprott system I was built to verify the new method of chaotic communication. Simulation results show that it is more flexible to achieve synchronization between communication terminals, more accurate for chaos synchronization, high performance of anti-noise, and the strength of the information signal is no affected by the chaotic signal.
The Application of Network Communication Tools in Information Service of University Library
Authors: Li Dan
Published: November 2013

In todays information age, how to effectively acquire knowledge is now a prerequisite for success in life. The conception and features of the knowledge service of university library are discussed firstly, and then the problems and development hindrances are also indicated on the basis of the network environment. Therefore, how to meet the requirement of the era becomes a challenge for the information service of university library. Some suggests are made to set up a scaffold in order to strengthen the information exchange and enhance the knowledge services level of university library by the application of the network communication tools.
Video-Based Traffic Flow Parameters Monitoring and Integrated Traffic Information System
Authors: Zheng Shu Kang , Li Min , Zhu Qi , Liu Xiao Min , Shen Hao Dong , Zhang Xue Wu , Zhang Zhuo , Fan Xin Nan
Published: November 2013

Road traffic flow parameters are the important basic information for traffic safety management, traffic condition evaluation and decision-making. This project designs a video-based traffic flow parameters monitoring terminal (ITS monitoring terminal), which is based on MENLOW embedded platform and expands its hardware and software resources. CCD cameras are used to capture image in video sequences in traffic environment. Image processing and analysis technologies are used to track vehicles and analyze the vehicle conditions in real time, and a vision measurement model which computes the traffic flow parameters, such as length, width, speed, distance between two vehicles, traffic flow density, and occupancy ratios, etc. is constructed. Furthermore, BP neural network is used to classify vehicles. ITS terminals interconnected with each other through public network or private network (optical ring network of transport agency, WLAN, Internet, and 3G) and connected with monitoring center of transport agency, which achieves dynamic data exchange and share among ITS terminals. It realized a wide-area distributed and integrated transport information system which synthesizes transport information guidance, traffic tracking; condition evaluation, decision-making, and real time transport information release.
Study on Chaotic Operation and Control System of Ultrasonic Motor
Authors: Quan Xun Zhong , Liao Xiao Wei , Wu Yan , Wang Li
Published: November 2013

Ccording to the running speed of ultrasonic motor instability, design a motor testing system, the closed-loop controller embedded improved neural networkalgorithm, to suppress chaos. In open-loop state, input constant parameters to the motor, the motor rotating speed detection, the test data is chaotic analysis,found the speed has chaotic characteristics; in the closed-loop state, the feedback signal through the controller for processing, effectively inhibited theultrasonic motor speed jitter phenomenon, so as to improve the smoothness of motion motor. Experimental results show that, the neural network controller design not only significantly inhibited motor chaotic jitter phenomenon, but also has good anti-interference ability.
Research of Garlic Umbilical (Root) Cutting Machine Based on Image Processing
Authors: Zhao Li Qing , Hu Cai Qi , Yin Yuan Yuan
Published: November 2013

Currently, cutting umbilical (root) process of dehydrated garlic slice processing plant has not been realized mechanization in China, and mostly completed by manual. Cutting umbilical (root) efficiency is low and the quality is difficult to guarantee. In this paper based on image processing, the demarcation line between garlic umbilical and garlic meat is measured, and then the measured data is transmitted to MCU control system of garlic umbilical (root) cutting machine through serial port communication technology. MCU system controls the gear motor to drive ball screw moving accurately and cutting garlic umbilical. The cutting error is less than 0.5 mm. This system adopts image processing technology and electromechanical integration technology, realizes the automation cutting of garlic umbilical (root).
Improve Dynamic Performance on High Speed by Application of Electromagnetic Valve Actuation
Authors: Xu Jiang Tao
Published: November 2013

This paper base on electromagnetism valve technology, the intake valves of a car driven by electromagnetic valve, by cooperating average torque of engine with prototype by 6000 RPM engine, then found that the average torque can be increased by 5.679% after changing the intake valves with electromagnetic valves. The increasing torque contributed to increasing the air intake in the opening stage and off stage improved, and provided a theoretical basis for the promotion of the electromagnetic variable valve in automotive.
Research on the Equivalence of Pulsed Interference Signal and CW Signal in DSSS Communication System
Authors: Wang Ying , Dong Jiang
Published: November 2013

Pulsed interference signal and pure frequency continuous wave (CW) jamming signal have the same effect on performance of bit error rate (BER). Due to equivalence, we can effectively simplify the complex of the direct sequence spread spectrum (DSSS) communication system. The equivalence will be simulated by the software SystemView in systematic level.
PAHIS: A Platform for Agent-Based Hybrid Intelligent Systems
Authors: Li Chun Sheng , Li Kan
Published: November 2013

For solving the dynamic addition and removal problems of group-based agents at run-time, PAHIS is developed by analysis and mplementation. Category role, group roles, virtual organisation role, and dynamics rules are conducted in analysis. A self-organising ring-based architectural model has been employed to organise middle agents in implementation. PAHIS is implemented by using C and Socket and can be used as an infrastructure of agent-based hybrid intelligent systems.
Development of Graphic Low Voltage Line Loss Calculation and Load Optimized Strategy Software
Authors: Wang Zi Qi , Zhang Jian , Su Gao Feng , Li Guang Chao , Wang Fei
Published: November 2013

A new method of developing the low voltage line loss calculation and load optimized strategy software are proposed, in which Microsoft Visio2003 is used as development platform and VBA is used as secondary development tools. In order to optimize low voltage load, the combinatorial optimization model which is employed to determine the scheme of three-phase balance load strategy is studied in this paper. The development of this software indicates that the technique of secondary development for Visio provides a new effective method for the development of the graphic low voltage network calculation software.