bluuebunny/crossref_metadata_2025 huggingface dataset:
Consequences of Electrical Arc on Automotive Connector during Extraction Phase
Authors: El Abdi Rochdi , Carvou Erwann , Benjemâa Noureddine
Published: October 2013

Comfort, safety, communication, control with assistance (antilock brake system, seat heating, multi-media, etc...) and safeguarding the environment are many factors which are included in the new generation of vehicles. The increase in the number of electronic and electric system leads to a high level of vehicle control. To answer this high electric power demand, it will be necessary to triple the voltage of the batteries (from 14 to 42 Volts). The objective of this work is to study the arc phenomenon which can occur in an accidental way during the use of a high electric power and particularly during the extraction phase of the male part from the female part of the automotive connector. It was observed that this can be characterized by both its energy and by its temperature. The amplification of the contact current from 14 to 42 VDC considerably increases arc damage.
Assisted Research of the Centrifugal Pump's Vibration Behavior
Authors: Niculescu Dan Florin , Olaru Adrian , Ghionea Adrian , Hajduk Mikuláš , Vagaš Marek
Published: October 2013

Vibration sources and types of defects that can be analyzed for equipment or working machine are numerous and depend on the type, mode and operating conditions, mechanical structure, such shareholders. In this paper, to determine the operating status and level of vibration (machinery due to mechanical faults) , the method uses FFT (Fast Fourier Transform method), to Online simulation of the defect it uses the method virtual world, LabVIEW
Microwave Assisted Extraction, Chemical Components and Antibacteria Activity Study of Thymus monoglicus Ronn Essential Oil
Authors: Sun Guo Xin , Miao Yan Qing , Gu Xiao Jing , Shi Jin Li
Published: October 2013

The chemical constituents of the essential oil of Thymus monoglicus Ronn in Bashan mount were analyzed by GC-MS. Fifty seven components were identified representing 90.313% of the oil. The main component was β-caryophyllene (26.351%), followed by 1,8-cineole (11.888%), sabinene (7.810%), trans-β-Farnesene (6.214%), α-terpinrnyl acetate (4.666%), caryophylleneoxide (3.619%) and terpenene-4-ol (3.543%). Bioactivity screening of this oil sample found it showed a slight activity of anti-bacteria on Escherichia coli, Bacillus Subtilis and Staphylococcus aureus (IC50>500 μg/mL).Introduction
Forced Vibration Behavior of Self-Piercing Riveting Joints
Authors: He Xiao Cong , Zhen Dong , Xing Bao Ying , Zeng Kai , Gu Feng Shou , Ball Andrew
Published: October 2013

As a result of the trend towards lightweight construction in manufacturing, there has been a significant increase in the use of self-pierce riveting (SPR) joints in engineering structures and components. Mechanical structures assembled by SPR are expected to possess a high damping capacity. The aim of this paper is to provide an experimental technique for the investigation of the forced vibration behavior of SPR joints. The dynamic test software and the data acquisition hardware were used in the experimental measurement of the dynamic response of the SPR joints. The frequency response functions of the SPR joints of different rivet number were measured and compared.
The Research on Working Performance of Annular Valve Spring Based on Solidworks
Authors: Li Xue Bin , Chen Xiao Long , Zhang Jian
Published: October 2013

According to the problem of cylindrical helical compression springs deformation and fracture in the process of using. come up with a Solution that use conical helical spring instead of it, validate the improvement measure with relevant simulation and test analysis, draw a conclusion that the working performance of conical helical spring is better than the cylinder, this paper has some guiding effect on the selection of Annular valve spring.
Intelligence Fusion Strategy of Forming Process Control for Sport Equipment in Rubber Products
Authors: Bi Bo , Li Lei
Published: October 2013

The physical-chemical properties of rubber products in sport equipment such as elasticity,tolerance,endurance,hardness etc not only are related to the factors of formulation in material and structure size etc, but also mainly depend on the control effect of forming process in vulcanizing phase. Aimed at the puzzle of being difficult to control resulted from uncertainty in vulcanizing phase, the paper proposed a sort of intelligence fusion control strategy. In this paper, it summed the control puzzle in complex vulcanizing phase, researched on the cybernetics characteristic, explored the control strategy of complex process with uncertainty, proposed a sort of intelligence fusion control strategy, and constructed the control model and algorithm. The simulation and engineering verification demonstrated that it could be stronger in robustness, and higher in control precision compared with PID controller. The research result shows that the proposed control strategy is feasible and effective.
Design and Realization of a Pipeline and Slot Multi-Function Robot
Authors: Yang Zhan Min , Zhang Guo Qing , Zhen Jiu Jun
Published: October 2013

Through the analysis of the research status and application characteristics of the pipeline robot, a design of pipeline and slot multi-function robot is presented. The robot adopts pneumatic power systems and peristaltic walk way. The robot can move not only in reducing pipe to clean or detect, but also between the slot to rescue or transfer goods according to computer instructions. The system is operated by slave control unit and controlled by PC through an auxiliary rope, so the robot has advantages about real-time detection of the work state, strong driving force, easy maintenance and fault recovery, low cost and so on.
The Study on Wireless Location Based on SQlite Database and ZigBee Technology
Authors: Zhu Chao , Du Gang , Gou Yun Tao , Li Qian
Published: October 2013

Applying SQlite database and ZigBee technology to the development of the smart supermarket shopping guide system and by prompting customers the target area and locating the real-time position of them, this paper solves the problem that customers can't find target goods quickly in large supermarkets. When customers want to search target goods quickly, firstly the monitor terminal installed in a shopping cart queries SQlite database table to obtain the position of the target area and display it on the electronic map, then it locates the real-time position of customers by ZigBee wireless network and refreshes coordinates of customers constantly. According to the electronic map, customers can go to the target area quickly and find the target goods easier.
Table Tennis Training Intelligent Assessment System Based on Placement Identification
Authors: Ma Rong Gui , Xing Hong Wei
Published: October 2013

This paper designs a table tennis training intelligent assessment system. Considering the real-time requirement, placement identification based on Monocular Vision was proposed by using target tracking algorithm, combining with the filter box and probability statistical method. The result shows that the system has the advantage of low time complexity and high accuracy.
A Low Cost 3D Foot Scanner for Custom-Made Sports Shoes
Authors: Taha Zahari , Aris Mohd Azri , Ahmad Zulkifli , Hassan Mohd Hasnun Arif , Sahim Nina Nadia
Published: October 2013

Conventional methods to obtain foot anthropometry for custom made sports shoes using anthropometer, callipers and measuring tapes are inaccurate due to the complex anatomy and curvature of the instep, foot arc and related joints. They lead to poor repeatability and large variances, particularly when measurements are taken of different people. Measurements from 3D model have been claimed as a perfect tool to obtain anthropometric data. However a commercial 3D foot scanner to create a 3D foot model can be very costly. In this paper we propose a low cost 3D foot scanner system by integrating available image capture technology such as the Kinect®, appropriate 3D scanning software and a foot scanner rig. An experiment was conducted to compare the anthropometry data taken using conventional method and from the 3D model. The differences recorded for all regions were found to be less than 5%, suggesting that the 3D model produced by this method is accurate. The use of 3D scanner has also decreased the measurement duration, thus increasing the repeatability whilst decreasing human errors that normally occur during the measurement process.
The Research of the Design for Stadium with Movable Seating and its Structure - Based on the Products from Ling Xian
Authors: Wei Guang Hui , He Wei Dong
Published: October 2013

Based on the products of Ling Xian company in Shen Zhen, by using document research and field research, the essay analyzes the design for stadium with movable seating and its structure which includes: the standard of the design, materials and the base of the seating, fittings, technology applied in the system control, standard of choosing seats, assembling model, data sheet, fast assemble. The essay attempts to analyze its humanized design and the state-of-art products; summarize features and strengths of the design and reach into the conclusion that the system of movable seating is the most advanced and it is highly competitive in the market due to its good value for money.
Comparison of Machinability of Glass/Jute Fabric Polymer Composites
Authors: Sridharan V. , Nambi Muthukrishnan , Deivanayagam S.
Published: October 2013

Natural fibre based composites are gaining more importance now-a-days due to their specific properties. The aim of this work is to present a comparison of machinability of jute fabric and glass fabric reinforced polymeric composite. Drilling was carried out in a Vertical Machining Centre using HSS twist drill of 6 mm diameter. The quality of hole is compared based on the delamination factor obtained by digital image processing technique, on both sides. Factorial design based experiments were conducted at different levels of speed and feed rate. Analysis Of Variance is done to study the influence of natural fibre on delamination. Results show that natural fibre reinforced composite has better machinability than synthetic fibre reinforced composite.
The Study of New Type of Double Metal Nanofluids Suspension Stability
Authors: Hou Qi Qi , Pan Xiao Ming , Zheng Wei
Published: October 2013

This paper made two types metal nanoparticles whose laws of motion had bigger different into ethylene glycol became a new type of double metals nanofluids coolant, and through theoretical analysis and experimental observations to research the different of aggregation properties with single metal nanofluids coolant. Research results of theoretical analysis showed that particles motion laws were the important element of nanoparticle aggregation, because of differences in movement, as the same conditions, double metals nanoparticles had the advantage of aggregation number and equivalent diameter of poly group better than single metal nanoparticles. Experimental results showed that through light beam transmittance test, we knew that the transmitting light degree of homogeneity of double metal nanofluids coolant was better than single metal nanofluids coolants; through contrast TME photos, we got nanoparticle aggregation state of three types of metal nanoparticles, and knew the otherness of nanoparticle aggregation state between double metal nanoparticles and Cu nanoparticles and Ag nanoparticles. This paper provides a scientific attempt to solve nanoparticles aggregation.
VOCs Sensing Property of Graphene Oxide Thin Film by Reduction Rate
Authors: Ahn Ho Sang , Park Hye Jin , Oh Ju Hyun , Joo Jin Chul , Kim Dong Joo
Published: October 2013

We demonstrate a combinatorial graphene oxide (GO) and reduced graphene oxide (rGO) thin film sensor fabricated by spin coating and dip casting method. Thermal treatment was followed to convert graphene oxide into reduced graphene oxide at different temperatures. 100ppm of evaporated methanol was utilized to examine the resistance profile of graphene oxide thin film and reduced graphene oxide thin film. Crystalline phase of GO and rGO were characterized by XRD. Surface roughness was observed by FE-SEM. Obvious opposite sensing property of GO and rGO were observed according to drying conditions.It was attributed to the change in number of radicals and type attached to the edge and surface of graphene oxide during reduction. Authors suggest that control of reduction rate by thermal treatment would be the one of the readiest approaches to enhance the selectivity of gas sensing in terms of direction of reaction.
The Influence of Spraying Angle on Robotic Trajectory Planning
Authors: Chen Yan , Chen Wen Zhuo , Chen Ken , Shao Jun Yi , Zhang Wei Ming
Published: October 2013

The influence of roll angle on coating uniformity is analyzed by establishing the formula between the average film thickness and it. The functional relations of coating uniformity to yaw angle and roll angle are obtained by measuring the average film thickness under the diferrent angles. The minor changes of spray angle have little influence on coating uniformity, and the tracking error of robotic spray gun is very small, therefore it can be ignored when studying robotic trajectory planning. The alteration of spraying angle, spraying distance and moving speed of spray gun can lead to the change of coating thickness, so optimized combination of them can improve coating uniformity.
Structure Design Method of Multi-Ring Carbon Fiber Composite Flywheel
Authors: Wen Xiang Long , Wang Xun Chao , Ke Tao , Zhang Jin Guang
Published: October 2013

A design method of carbon fiber composite flywheel, on the basis of the flywheel application background, is introduced in this paper. This method based on the stress distribution of multi-ring interference fit flywheel can quickly design the number of rings and the interference, on the premise that the storage requirement of flywheel energy storage system is met. Compared with the existing design method that is aimed at maximizing energy density and storage, the proposed method in this paper, simpler and faster, lays more emphasis on engineering applications.
Design and Test of a Mechanical Device for the Manipulator of the Watermelon Picking Machine
Authors: Yu Jun Hua , Xu Li Jia , Ren Ke Fan , Zhang Wei Peng , Lu Zhi Gang , Wang Pei Da
Published: October 2013

This Paper designs a mechanical device for the manipulator of the watermelon picking machine against the low mechanical degree of watermelon picking machine. The mechanical device utilizes a mechanical arm to drive the end effector to run and the end effector is responsible for clamping and shearing watermelon vines, which avoids vine disturbance and sorts out vines to be easily cut down through the process design of clamping, promoting, and re-shearing. In addition, this Paper applies Pro/E modeling, finite element analysis, and simulation analysis to complete the 3D model design of the mechanical device and transforms the 3D model into 2D drawings in Auto CAD to complete the manufacturing and assembly of the manipulator, and the test result verifies the mechanical device may realize the reliable picking of watermelons.
A Robust Method of LED Die Recognition Based on Dual BP Neural Networks
Authors: Li He Xi , Yang Tie Niu , Zheng Xiao Xi
Published: October 2013

A robust method based on dual back-propagation neural networks (BPNN) is proposed to recognize light-emitting diode (LED) dies on wafer planes in vision-based LED sorting system. To improve the recognition accuracy of LED dies, particularly under the condition of LED die image degradation, a dual BPNN with 3 layers architecture is first constructed, in which the two BPNNs are trained respectively using the region features and edge features of die images based on batch gradient descent method, and then the outputs of the dual BPNN are fused according to Dempster-Shafer (D-S) theory to generate a final decision. Applying the trained dual BPNN as a classifier, the recognition experiment of a large-diameter LED wafer is completed, experimental results show that LED die recognition accuracy of the dual BPNN is higher than that of the single BPNN based on the region feature or edge feature and is robust to die image degradation, it can be used for LED die array location in vision-baesd LED sorting machines.
The Development of the Testing System of Mill Roll's Surface Morphology
Authors: Wang Lei
Published: October 2013

In this paper, I design and develop a surface morphology testing system using Visual Basic language matched with the measuring instrument used in the production site to get the three-dimensional parameters. This system realizes that to get the parameters directly to show the surface morphology of the mill roll. At last, I analyze the testing data and confirm the correctness and practicability of the testing system.
Analysis on Structure and Morphological of Carton Packaging
Authors: Sun A Qiang
Published: October 2013

The package structure is a three-dimensional space form, so people know the products are in used in the packaging. In packaging materials for paper use is very extensive, paper products are easy to shape the body shape for easy printing and recyclable advantage. This paper study design of the paper packaging structural, combining paper packaging structural design applications to explore the paper packaging structural morphology and environmentalist design consciousness.
Detection of Crack Travel and Opening of a Standard Notched Specimen Mode I Using Embedded FOS Device
Authors: Utou F.E. , Gryzagoridis J. , Sun B.
Published: October 2013

Crack detection and monitoring has become one of a focus center for the health monitoring of engineering structures under the influence of mechanical deformation.This paper discusses the detecting, tracking and monitoring mechanisms for the crack, by initiating a sensing system by using a standard notched specimen. Crack features such as magnitude of crack travel versus crack opening are displacement indicators that can vary due to the applied load on the normal line to the direction of the crack travel. More ever, the rate of the crack opening is considered to be proportional to the rate of the crack travel.Lines of three optical fibers of 125 nm are embedded and fixed at two ends and pass across the direction of the crack travel at an approximation of 2mm apart. The light of 2V from the source is passed through the optical fiber, across the crack tip. The crack opening forces the optical fiber to extend under tension, and hence the interruption of its diameter. This causes the decrease in the light intensity traveling through the fiber till the total failure of the fiber, to declare presence of crack. The embedded fiber optics on the specimen links the instrumentation optical system which permits the light beam throughput. Finally the converted light beam into voltage domain allowed us to closely analyze the crack tendency, and eventually be able to establish a model and sensor equation which governs the trend of the crack growth.
A Design of WIFI Wireless Transmission Module Based on MCU
Authors: Kuang Xing Hong , Huo Hai Bo
Published: October 2013

The design is WIFI wireless transmission module based on the control of MCU. It can achieve the point to point communication between WIFI modules. The design includes hardware schematics and wireless transmission process, describes the principle of WIFI wireless transmission based on the MCU. As it has many advantages like fast and stable, its application prospects will be broad in the life. The wireless transmission module circuit based on WIFI module was implemented in the paper. The main communication flow chart is described in detail.
Automatic Measuring Instrument of Dam Horizontal Deformation Based on Laser Scan Concept
Authors: Lu Jian Yin , Zhou Yun Fei
Published: October 2013

In this paper, a design of an automatic measuring instrument of dam horizontal deformation based on laser scan concept is introduced. According to the demand of the dam deformation monitoring, the design chooses STM32F103CBT6 as the hardware control platform, and the laser scan concept is introduced. The measuring principle, main hardware design scheme and software flow chart are introduced in this paper.
The Stability Analysis Based on EDF Scheduling Algorithm in CAN Bus
Authors: Liu Yu
Published: October 2013

The CAN bus scheduling performance can be very important for the design of CAN bus system, it is related to the normal operation of the bus system. The CAN bus scheduling performance is studied and calculated using the classical first order second moment method based on EDF scheduling method; an example of the bus system scheduled by EDF method is used to calculate the stability by this method. MONTE-CARLO simulation is imitated using software programming; by comparing the results above the formula proves correct.
Control System Design of Pneumatic Conveying in Sand/Dust Environment Simulation Test
Authors: Yin Jiao , Liu Hu , Wang Jun , Li Ke
Published: October 2013

This paper focuses on the design of pneumatic conveying control system, including the design of both hardware and software part. The hardware part is mainly about building a test bed. Under certain wind conditions, by controlling the rotary feed valve to achieve the control of sand/dust concentration. The software part is to make the use of LabVIEW to develop a screen display program, which can achieve real-time data acquisition and control. The paper consists of three parts, the pneumatic control system hardware design, the pneumatic conveying control system software design and then Origin is used to linear fit the wind speed parameters collected back.
Coordinating Motion Planning for a Mobile Manipulator with Multiple Constraints
Authors: Li Qing Chun , Zhang Wen Sheng , Zhang Ying Hua , Qiu Yu Dong , Yang Ye Hui
Published: October 2013

In this paper, we design a 6-degree of freedom (6-DOF) mobile manipulator and present a method of coordinating motion planning. Through analyzing the structure and motions of our mobile manipulator, we obtain some multiple constraints, including static constraints, dynamic constraints and obstacle constraints. To avoid the multiple results of inverse kinematics, joint angles constraints are adopted. Under the condition of these constraints, we put forward a method of coordinating motion planning to guarantee that the mobile manipulator can get the optimal solution by the maximum fitness method (MFM). The method includes two steps: first, the mobile platform moves from non-operable region to operable region; second, the coordinating motion between mobile platform and machine arm in order to achieve the purpose of dredging and unloading materials. Simulation experiments on the mobile manipulator show the effectiveness of the proposed method.
Several Realizations of the Finite Element Software ANSYS Structural Analysis
Authors: Wang Bo , Zhang Yong , Chen Rong Jun
Published: October 2013

Based on the normal work and study practice, the author sums up some experience that need to pay attention to some problems in the Ansys finite element analysis. In structural static analysis, the principle of the stress singularity and different load are needed to apply. And in analyzing the nonlinear structure, the problems of convergence are needed to pay special attention.
Dynamic Multi-Hop Routing Protocol in Wireless Sensor Networks
Authors: Li Xian Li , Zhang Jia Wei , Liu Liang Bing
Published: October 2013

Considering the shortage of LEACH protocol, a novel dynamic multi-hop routing protocol named Balance Energy-efficient and Real-time with Reliable communication protocol based on Connected Dominant Set (BERR-CDS) is proposed in this paper. BERR-CDS protocol fully takes account of the energy consumption of an individual node and entire network, a rational transmission path from source node to sink node is searched, aiming at the network topology changes which are caused by the death of cluster head, the invalidation of cluster member nodes and new nodes joining, BERR-CDS designs the corresponding valid mechanism to respond, and it can rapidly adapt to the topology change of network. Simulation results show that BERR-CDS protocol has better performances in term of energy consumption, network lifetime and reliability, it is an ideal routing protocol in wireless sensor networks.
A Mix-Integer Programming Model for Inventory Slab Allocation Problem
Authors: Xie Xie , Li Yan Ping , Zheng Yong Yue , Li Xiao Li
Published: October 2013

This paper investigates the inventory slab allocation problem in the iron and steel production. Considering some practical production factors including allocation quality, slab and order preferences, and the order-fulfill situation, we formulate the problem as a mix-integer programming model to allocate inventory slabs to the orders so as to maximize material utilization rate and customer satisfaction. Our objectives are minimizing thesuitabilitycost concerning the allocation of slabs to orders and the cost associating with the unfulfilled or exceeded weight for each order, as well as maximizing the profit in terms of the allocated slab weight and the preferences of orders and slabs. Computational results using real-world data collected from the company show that the solutions generated by MILP are optimal.
Designing Interactive Virtual Products Using VRML and Java
Authors: Yu Dong Xian , Song Huan
Published: October 2013

This paper exploits the combination of VRML (Virtual Reality Modeling Language) and Java for the construction of highly interactive products. The products are modeled in vrml, which allows the definition of a Java program to process and generate events that determine the interactive of the product. An application for the generation of Java graphical interfaces was developed, aiming to establish the communication between the user and the vrml product, sending parameters to the program that controls the product.
Experimental and Numerical Simulation of Absorbing Property of Cement-Based Material Blending with Nano-TiO2 and Steel Fibers
Authors: Wang Bo , Zhang Yong , Chen Rong Jun
Published: October 2013

The absorbing performance have been tested and analyzed by taking cement as matrix, blending material nanoTiO2 and steel fibers for absorbing agent trial Sample, in the 8 ~ 18 GHz frequency band, the results indicate that nanoTiO2 and steel fibers and composite cement which made of absorbing material has good absorbing property. Blending material absorbing properties of cement-based materials, the impact must be considered together, not the more the better, when blending material exceeding 6wt%, its ability of wave-transparent enhance while absorbing property will be reduced finally. By using ANSYS software for computer simulation of the specimen to test experimental data and found the computer simulation algorithm not only can verify the correctness of the conclusion but also auxiliary correction deviation appeared in the course of the real data and the error value.
Characterization of Zeolite/Monomer Casting Polyamide 6 Composites
Authors: Huang Bo Fen , Liang Han Xuan , Li Zhi Yuan , Bai Yan Chao
Published: October 2013

Monomer casting polyamide 6 (MCPA6) was modified by zeolite whose microstructure owns nanoscale holes which has excellent interfacial compatibility with MCPA6. The zeolite / MCPA6 composites were prepared by anionic in-situ polymerization. FTIR indicated that the addition of zeolite did not cause adverse reaction in the reaction system. The results also showed that zeolite / MCPA6 composites had two melting peaks; MCPA6 transformed from α crystal to γ crystal structure partly. The zeolite played a role of heterogeneous nucleation agent which improved the crystallinity of MC nylon 6. When the addition of zeolite was 5 phr, the zeolite / MCPA6 composite crystallization temperature increased over MCPA6 6.8 °C.
Obstacle Avoidance Control Method of Mobile Robot Motion
Authors: Zhou Bin , Qian Jin Fa
Published: October 2013

Mobile robot is an intelligent system which can move freely and is scheduled to complete the task in the working environment. Obstacle avoidance of mobile robot is the research hotspot in the control field of the mobile robot. The mobile robot obstacle avoidance methods are classified, including the traditional algorithms and the intelligent algorithms. This paper summarizes the intelligent algorithm in the mobile robot obstacle avoidance technique in the present situation, and the intelligent algorithm which is the most researched in the current. Finally, this paper prospects the development trend of intelligent obstacle avoidance of the robot.
Maximum a Posteriori Image Denoising with Edge-Preserving Markov Random Field Regularization
Authors: Zhang Wei , Li Jiao Jie , Yang Yu Pu
Published: October 2013

Image denoising is still a challenging problem for researchers. The conventional methods for image denoising often smooth the images and result in blurring the edges. In this paper, however, we consider not only the noise removal ability but also another important requirement for image denoising procedures that is true image structures, such as edges, should be preserved. To this end, we propose a maximum a posterior (MAP) image denoising algorithm using a novel edge-preserving Markov random field (MRF) model. Considering edges tend to be continuous in space, the connectivity of structure tensor is defined to describe edges. And the revised Markov random field model is proposed by using the edge connectivity, which can adaptively control the degree of smoothing. The experiments show that our new method gives superior performance in terms of both objective criteria and subjective human vision when compared with related MRF models.
Research on Badminton Flight Tracks Based on Aerodynamics
Authors: Fu Wan Zhong
Published: October 2013

Badminton is one of the popular sports in the world. Our country is located on the top of the world badminton list. In order to improve the player skills, we have made the following research. We have analyzed the design and the flight track of the badmintons in accordance with the aerodynamics and then establish a model. According to the hydromechanics, the stress the badminton takes when flying is analyzed, then the relation between resistance and the speed can be got. After the curve fitting, the curve fitting figure is shown to us. Finally, we simulate the badminton flight track by using Runge-Kutta method and then get the track figure.
Research on RC Frames Collapse-Resistant Capacity of Different Seismic Fortification Levels
Authors: Xu Guang Shu
Published: October 2013

The use of professional structure analysis software ANSYS analyzes the strength and seismic performance for multilayer RC structure, and through the analysis of numerical simulation, the vibration frequencies of RC frame structure and mode shapes and other seismic parameters are got, combined with IDA structure collapse fragility analysis method, the safety performance of the resistance collapse of first-order structures and two modes are been quantitative evaluation, to get the axial ratio of RC frame structure and the collapse mechanism. Finally, according to the analysis of results, the structure seismic is put forward the proposals, to provide a theoretical reference for the study of structural seismic fortification.
Design of Low-Cost Airport Boundary Intelligent Video Surveillance System
Authors: Liu Hong Tao
Published: October 2013

The existing Airport boundary intelligent video surveillance system is complicated to construct and costs a lot. This paper presents a design of economical Airport boundary intelligent video surveillance system according to the principle of optimization system and the resources share, combined the motion detection technology of NVR with intelligence video analyze equipment. The design can greatly decrease the false alarm rate and reduced the number of intelligence video analysis equipment. Therefor, it has higher application value and practical significance.
Research on Low-Carbon Architectural Development Based on Green Life Cycle
Authors: Zhang Yun Fei
Published: October 2013

In the face of the energy crisis and environmental pressures , the development and construction of low-carbon building has become a forceful measures to promote the development of building industry science, which is also an important factor to improve the people's living and living standards .From the perspective of the entire cycle of life, we use the analytic hierarchy process to explore the constructional project in the decision-making , planning and design , construction , and the effect of the usage and demolition disposal phase of the carbon emissions , we build the model of cycle of the low carbon building initially; it makes clear that we will face difficulties and challenges to develop the low carbon in the field of building codes, providing a theoretical basis for the development of the healthy and effective low-carbon building.
Study on the Harmonic Impact of Large Scale Electric Vehicles to Grid
Authors: Hao Ceng Ceng , Tang Yue Jin , Shi Jing
Published: October 2013

Large scale electric vehicles integration into power grid, as nonlinear loads, will pose inevitable impacts on the operation of power system, one of which the harmonic problem will affect the power quality greatly. Firstly, the article analyzes the characteristics of harmonic caused by electric vehicle charging. And then, the harmonic flow distribution is analyzed based on the IEEE standard node systems. During transient analyses, the electric vehicle charging stations connected to electric grid are represented as harmonic sources. Results show that structure and voltage grade of electric grid, capacity and access points of electric vehicle charging load will have different effects on harmonic problem. At last, a few conclusions are given for connecting electric vehicles to electric grid.
The Research of Stepper Motor Subdivision Control System for Cloth-Cutting Machines
Authors: Lai Chuan Ke
Published: October 2013

For stepper motor motion control problem of tailoring machine,the paper designed control system based on the LPC2138 and SLA7062 stepper motor subdivision , and realize of high-precision stepping motor subdivision control. Experimental results show that the stepper motor can be subdivided under the control of the control system stable and accurate operation, tailoring machines can meet the accuracy requirements.
Study of the Theory and Practice of Coal Mine Safety Monitoring Technology
Authors: Wang Hong Ru , Wang Mei Shen , Wang Zi
Published: October 2013

Safety and production management is the eternal theme in the coal mine industry. Featured in the digital technology and information security technology, the third generation of coal mine safety monitoring system has gotten popularization and application in production, it could help to improve coal mining enterprises' ability of disaster-forecasting and to ensure to providing the technical support of production safety and risks elimination at the maximum.
Schedule System for Transport Aircraft Mission Simulation
Authors: Zang Jing , Liu Hu , Ni Xian Ping
Published: October 2013

In order to support the transport aircraft mission simulation for evaluating and optimizing the air transport plans, a schedule system is researched. Firstly, the method of the schedule system to handle the typical transport aircraft mission which can be divided into ground sections and flight sections is described. Moreover, the ground section is composed of several ground services such as fueling and on/off-loading. Secondly, the user interface which presents the schedule table by color bars is introduced. Next, the operating mode of the schedule system which is responsible for judging the time status and aircraft in simulation calculation is introduced. A sample case which includes eight aircraft flying in sequence is provided. The result of the sample case verified the schedule systems ability for promoting the mission simulation process.
Analysis on the Current and Voltage Control of Photovoltaic Battery Based on MPPT
Authors: Dang An Ming
Published: October 2013

The maximum power point tracking (MPPT) photovoltaic (PV) system can through the control photovoltaic device to realize voltage or current. However, the existing technical literature, which is not about these two methods how to choose reach a consensus. This paper through the use of current and voltage two different MPPT control strategies: in the perturbation and observation (disturbance observation method) and incremental conductance technology, to this problem made a comparative analysis.
The Design and Implementation of Intelligent Compensation Controller
Authors: Wang Chun Ping
Published: October 2013

By studying the developmental actuality of reactive power compensation system in electric power system, with research on the theory and mode of reactive power compensation, this paper proposes a kind of static var compensation controller, which is based on high-performance, low-power microcontroller ADUC836It adopts nine-zone graph theory as the control tactics of voltage and reactive power. This new designed compensation controller can be connected with GPRS module by RS232 /485, thus the purpose of the real-time data transmission and exchange with the main control center is achieved. The whole system obtains the advantages of simple hardware structure, low price, easy software programming and excellent anti-interference ability.
Research on the Sensor Coarse Signal Processing Model Based on Adaptive Genetic Algorithm
Authors: Zou Dong Lan
Published: October 2013

With the rapid development of electronic information science and network transmission technology, the signal processing technology has been widely applied to various fields, which is the most important component of signal detection and transmission, and the key signal processing technology for processing sensor crude signals. Based on this, the experimental system of sensor coarse signal processing model is established, and in the experimental system, the transformer can carry out signal recognition for voltage and current, the use of PC microcontroller and embedded AD converter carries out analog / digital conversion for sensor crude signal. For the amplification process of sensor coarse signal, the use of adaptive genetic algorithm carries out mathematical modeling, the realization of the signal identification, acquisition and processing functions through software programming control. Finally, the intelligent processing of sensor coarse signal is successfully completed by the experiment system, and the signal processing effect is given as well.
The Building of Three-Dimensional Geographic Information System Based on Virtual Reality
Authors: Xiao Yi
Published: October 2013

Most of the existing literature research how to combine the three dimensional geometry model 3 d geographic information systems (GIS) technology, such as houses, trees, and so on. The grid model 3 d geometric features rare, they have less data, but the poor real-time problems still exist. It rarely have in the literature that the 3 d GIS and fog increase, it has a larger data particle system model. Therefore, this paper aims to study more deeply. Therefore, the 3 d GIS visualization algorithm is proposed on the basis of image processing method, and the results show that, with the real scene to the time cost less.
Research on Relay Scheme Based on Wireless Network Communication
Authors: Yin Zhi Hao , Yang Yong
Published: October 2013

With the technology development, wireless network has been the important combination of current high and new technology. In order to confirm communication performance and different high-efficiency satisfaction of various users, relay question research of wireless network communication is the hot spot. Take the advantage of cooperation diversity technique can diverse each node in the network system. Moreover, optimize the relationship among each node is the important method of communication technology. This article evaluates relay questions in the wireless network communication. It analyzes relay and protocol, explains three transmission methods in network communication, discuss selection algorithm of multi-relay, and combines genetic algorithm and selection algorithm of multi-relay. In the end, this article provides part of the core codes.
Multi-Hop Voice Communication Nodes Based on ZigBee Protocol
Authors: Liu Zhou Zhou , Wang Fu Bao
Published: October 2013

To meet the needs of ZigBee protocol on voice communication in wireless sensor network and realize low-cost and low-consumption wireless voice communication in short distance, multi-hop voice communication nodes software based on multimedia voice node plate of wireless RF chip is designed. Thus, multi-node network communication, real-time voice sampling and multi-hop relay transmission are implemented. Also, it features high-quality voice, low fault system, and high reliability. All these make it applied widely in a larger range.
Research and Design of Automobile Car Body CAD System under CADCAM Integration Environment
Authors: Liu Da Cheng
Published: October 2013

With the rapid development of computer technology, the processing ability of image simulation system is becoming stronger and stronger. The widely used AutoCAD (Computer Aided Design technology) in automobile car body drawing gradually extends to automation direction,and it can be more widely used.Realizing the informationization deepening in automobile car body drawing has a very important significance for the modernization construction of our country.Based on the analysis of advantages and disadvantages of AutoCAD technology,this paper puts forwards the application of reliable transmission technology in automobile car body drawing operation,designs automation model of automobile car body drawing system and introduces the information feedback of transport layer in this mechanism,so as to achieve the optimization of highly efficient application in automobile car body drawing system.
The Study on Network Security Strategy Based on Security Evaluation
Authors: Bi Yan
Published: October 2013

The feedbacks of the results of assessing the network security strategy based on security capability, as a reference to the security strategy for effective adjustment, providing a more robust system and improve the safety. The correct security strategy results from the correct understanding on the system security demands and effective assessment model, because the various security domain information subjects and objects have different security needs. On the basis of the establishment of the network security strategy based on security domain, through analysis of the security strategy defensive methods, application objects, information security attributes and their relationship, this paper proposed an assessment model of network security strategy based on security capability, and analyzed the impact of the network security strategy attributes upon network security capability, that is the robust security strategy is conducive to system safety.
Invading Testing System Based on Clustering and HMM Distributed
Authors: Lin Ru Dan , Wang Ling Jian
Published: October 2013

In the invading testing, the testing of unknown is mainly accomplished by the abnormal testing. Traditional abnormal testing methods need to construct a normal behavior feature outline reference mode. When establish this mode, it is needed to have large amount of pure normal data set, and this data set usually is not easy to gain from the real network. Whats worse, the problem of too much error reports and leaking reports in the abnormal testing is pervasive. In order to overcome this shortage, this paper rises a abnormal testing method which is combine clustering analysis and HMM. This method doesnt need any training data set of manual marking; it can explore many different types of invading behaviors. The experimental results indicate that this method has better effect on the testing, which is of a higher testing rate and lower error report rate.
An Improved QoS Routing Algorithm in Internet
Authors: Huang Hong Bo , Wang Yong Zhi
Published: October 2013

An Efficient Routing Algorithm for Improving the QoS in Internet has been proposed and presented in this paper. The algorithm is a kind of Multi Constrained Path algorithm. The routing take place based on more than one link weight components. To avoid the NP complete problem and to increase the computational efficiency some advancement are added. These include the definition of Non Linear Path Length, where the sub paths may not be the shortest path, having k no of shortest paths in a node instead of having only the shortest path, then removing the path dominancy for state space reduction. As a last the concept look ahead is also included through which a predicted path to destination is mapped. This work only implements the removal of path dominancy where the queue is updated by removing the dominated paths from the queue. The simulation is also showing the better performance of the system.
Energy Efficient Path Analysis and Research in Ad Hoc Networks
Authors: Liu Rui Qi , Dong Yu , Tang Cheng Pei , Ni Jiang Qun
Published: October 2013

Energy Conservation has been the focus in the ad hoc wireless network study. As the capacity of battery is limited, node will lose its function once its energy is exhausted. This thesis is aiming to calculate among the multiple transmission paths and find out a path which consumes the least energy. Previous studies are focused on finding the minimum hop path in transmission. In this study we propose to use the square of the distance between nodes as a proxy to the power consumption as the transmission power is proportional to the square of the distance between the nodes. We simulate the node transmission by limiting node out-degree in broadcasting and calculate the minimum sum of the square of distance between nodes in the path to find a path which has the least energy consumption.
Analysis on the Application of the Embedded System to Software Development
Authors: Xu Fang , Peng Xiao Xia
Published: October 2013

Along with the continuous development of computer technology, the embedded system, as one of the most important computer applications, has been more and more widely used in the world. In this paper, the embedded system is briefly introduced, and also the application of the embedded system to software development is analyzed and expounded.
The Study on E-Business Authentication Approach in Distributed System
Authors: Li Guang Ya
Published: October 2013

The most important and concerned problem with the Internet electronic registration is security problem. This contribution uses conic curve method to verify the generating license in servers. In order to ensure the validity and security of license, the process of license distribution apply a verifiable code distribution scheme based on conic curve to make the electronic registration process more secure. In this paper, we propose a distributed electronic authentication scheme based on conic curves. As an alternative algebra curve technology, we believe conic deserves the further study in cryptography.
Research on Protection Methods of Embedded Operating System Software Based on Hardware Compiler
Authors: He Gao Ming
Published: October 2013

This paper describes a system; CODESSEAL can provide protection and evaluation to system software. CODESSEAL was designed to protect embedded systems with sufficient expertise and resources to capture attack equipment and manipulator, not only to protect software but also to protect hardware. By using the reconfigurable hardware allows CODESSEAL to provide confidentiality, integrity of security services and a platform-independent program flow without having to redesign the processor. System uses software and data protection technology and designs cycle simulation methods for data analysis. Experimental results show that the protected instructions and data with a high level of safety can be realized a low, which in most cases the performance loss can be reduced to below 10%, so the research of software protection methods of the embedded operating system of hardware compiler has important practical significance.