bluuebunny/crossref_metadata_2025 huggingface dataset:
Lightning Electromagnetic Field within the Building
Authors: Lu Ping , He Wei , Ma Li Feng , Han Ruo Yan
Published: June 2014

Because of the fast development of high buildings and large mansions and the increasing applications of electronic information technology, all kinds of advanced electronic equipments are installed in buildings. These equipments have qualities of low insulation, weak endurance of overvoltage and overcurrent and sensitivity for EMC disturb. Then more and more serious hazards and indirect economic losses are arising from lightning disturbance. Therefore, in order to cut down such big losses it is really necessary to conduct the research of stroke-incidence rules and take effective measures to protect buildings against lightning. Theories and practice show that the lightning protection is a systematic engineering. The exterior protection and interior protection should be constituted as an integer. This paper mainly studies the telecommunication equipments in the building disturbed and harmed by the lightning electromagnetic field. To protect this injure effectively we must find out the distributions of the lightning electromagnetic field in the building. Three cases of the lightning electromagnetic field distributions in the building have been discussed in the paper.
Nonisothermal Crystallization Kinetics of Poly(m-xylylene adipamide)
Authors: Gu Xiao Hua , Zeng Peng , Zhang Xi Wei , Song Xue
Published: June 2014

Abstract.In this paper, the nonisothermal crystallization kinetics was investigated by differential scanning calorimetry for the poly(m-xylylene adipamide) (MXD6) which were prepared by polymerization in reactor. The Avrami theory modified by Jeziorny and Z.S. Mo equation were used to describe the nonisothermal crystallization kinetics. The analysis based on the Avrami theory modified by Jeziorny shows that the Avrami exponent n of MXD6 ranges from 2.3 to 3.3, Moreover, both Avrami exponent (n) were around 3.0, which probably suggests a thermal nucleation and a three-dimensional crystal growth. The good linearity of the plots indicates the successful application of Z.S. Mo method in this case.
A Design of Coal Mine Security Monitoring Substation Based on ZIGBEE and CAN Bus
Authors: Wang Hui Jun , Yong Zhi Qun
Published: June 2014

In view of the shortcoming such as wiring difficulties, poor scalability, and big cable usage in present mine security monitoring system, this paper puts forward a kind of substation monitoring and control system based on ZIGBEE and CAN. With the core of core, The system collects various measurement data of sensors through the ZIGBEE wireless network, realizes the to collect, and then through the CAN bus to realize the transmission of control commands and data of the up and down machine, and monitor the production parameters and environmental parameters in the coal mine. Experiments show that the monitoring substation is of high real-time performance, good stability, strong expansibility, etc., and can meet the requirements of the coal mine development and mining.
A Design of Miniature Wideband Patch Antenna Based on Computer Simulation Technology
Authors: Liang Chen
Published: June 2014

in this paper, based on the finite element method, using the high frequency simulation software HFSS, set up simulation model, by changing the antenna model substrate medium, using slot loaded with a short needle, simulated and achieved a miniature wideband patch antenna for WCDMA, The computer simulation technology has greatly reduced the antenna design cycle and cost.
A Highly Reliable Online Monitoring and Real-Time Alarm System for the Insulation Condition of Power Transformers
Authors: Sun Wen Xing , Li Zhao Hui , Cheng Shi Jie
Published: June 2014

Many successful applications for the online monitoring of the insulation condition for electric power transformers have been reported over last thirty years. However, false or unsolved alarms have been quite frequently generated by those condition monitoring systems. Failures and some occasionally catastrophic accidents involving transformers have still occurred. A highly reliable insulation condition online monitoring and real-time alarm system has been developed, to help resolve these problems. An electric power transformer has strongly linked mechanical, electrical, magnetic, chemical and thermal characteristics, and is also directly linked to circuit breakers and generators. Team Intelligence (TI) was employed to integrate all the monitoring modules of the various different aspects of the transformer into one unique system. This system could also be integrate with the condition monitoring systems of various linked facilities, such as the monitoring systems of the turbine and the generator in a Optimal Maintenance Information System for Hydropower Plant (HOMIS). Highly reliable monitoring and real-time alarms of transformer insulation condition could be achieved, due to highly coordinated and rapid response features. This system has been deployed in several hydropower plants. The industrial application examples are demonstrated.
A New Flow Chamber for Evaluating Flow Conductivity of the Network-Like Fractures
Authors: Wen Qing Zhi , Li Yang , Xu Xi , Li Meng , Li Hai Peng
Published: June 2014

The permeability of the shale reservoir is nanoDarcy. After fracturing the fractures that appear in the shale reservoir are very complex, which can’t be described by conventional method. The conventional flow instrument for the fractures is improved. A more applicable flow chamber is remade to evaluate the flow conductivity of the network-like fractures more accurately. The model of the network-like fractures includes the marble and high-intensity proppants.
A System Design for Springback Compensation Base on PAM-STAMP2G FEM
Authors: Zhang Ling Yun , Jia Wen Guang
Published: June 2014

Springback of sheet forming is became a serious issue which we must be solved before froming process. The springback system was designed by visual studio2010, and displayed by OSG graphic developed tools. Besides, the system named Comsystem also used some FEM files from PAM-STAMP2G code. These files are put into Comsystem , then the working surface is formed and a new forming die is designed. The vector compensation algorithm and compensation factor have been used. The method to determine the second compensation factor is proposed. The system has great significance not only in controling the springback compensation but also in reduceing the production cost.
An Optimization Approach of SRM Sphere Slot Grain Design Based on Improved Differential Evolution Algorithm
Authors: Chen Wei , Liang Guo Zhu
Published: June 2014

The sphere slot is a 3D configuration of solid rocket motor (SRM) grain. Accompanied with multi-design-variable and strong constraints, its optimization is always a complicated problem. In this article, a methodology has been presented for the optimization of sphere slot grain configuration. Parameterized CAD model method and unsteady lumped parameter internal ballistic model are adopted to evaluate the performance of sphere slot grain to establish the optimization objective and constraint functions. An improved differential evolution algorithm incorporated with Oracle penalty function method is developed and applied on the optimization to solve global optimum solution converging difficulty of multi-variable constrained problem. The approach is validated by a small sphere slot SRM. The results illustrate it is effective method and has robustness and efficient capacity to explore the design space for global optimum solution of sphere slot grain.
Calibrate the Turning of Micromouse
Authors: Zhang Hao Ming , Peh Lian Soon , Wang Ying Hai
Published: June 2014

Perfect turn can help micromouse get a right maze information and high turning speed in complex maze, lead to a win in the competition, but high speed makes control the micromouse very difficult. How to calibrate a turning of a micromouse has become very important. Through analysis of a turn different motion results, get perfect turning reference, then set start and end to record position ratio, get the converted data, sum the data until the mouse complete half turn. After checking, the mouse know whether it is on the under path or over path, then it will automatically ask motors make some action to put itself back to the perfect path, a perfect turn is realized.
Aluminum Parts Based on Solidworks Edge Shape Analysis and Mold Design
Authors: Liu Ying Chun
Published: June 2014

1060 pure aluminium material parts after blanking, deep drawing, flanging with crimping mold edge forming, through process analysis and calculation, determine the blank, bending force, and choose to press. Mould structure analysis, and carries on the edge of major parts of the mold design, mold assembly drawing.
Optimal Linear Control Driven for Piezoelectric Non-Linear Energy Harvesting on Non-Ideal Excitation Sourced
Authors: da Costa Ferreira Douglas , Chavarette Fábio Roverto , Peruzzi Nelson José
Published: June 2014

Non-linear energy harvesting system was project to enhance interaction to ambient vibration that is wide band and low power which difficult the design for resonant solution. To improve efficiency of a non-linear design it was project a control system based in optimal linear control (OLC). Applying numerical evaluations it was possible to analyze the kinetic energy from the system as also the resulting output voltage. As main result there was a considerable increase of output voltage due controlled system in comparison to open loop for the same excitation.
Power Electronic Technology Application in Power System Reactive Power Compensation Study
Authors: Jia Yang , Liu Jin Chao
Published: June 2014

This paper introduces the reactive power compensation technology in the development of power system. From the new technology of reactive power compensation, controller, capacitor connection mode and switching on-off switch to briefly describes the current situation of the development of reactive compensation technology.
Research on Asphalt Concrete Pavement Edge Molding Machine with Intelligent and Automatic
Authors: Shan Gen Li , Liu Yao Zhen
Published: June 2014

This paper designs an intelligent automatic mounting machine . For the purpose of reducing the steps of remodeling of excess asphalt and saving asphalt concrete . Before paving mixing , it laid two rows of fixed and adjustable thickness of the side-mode and mold clamp on both sides of the road . The results show that it avoids the process of removing the extra asphalt, saving raw materials, improving the efficiency of the paving . Mainly describe control system , especially pneumatic system.
Design and Analysis of CAN Communication Network Applied in Hybrid Electric Vehicle
Authors: Wan Mao Song , Qiu Qi Wen , Lv Li Ya , Li Bing Lin , Sun Ning , Ge Wei Lin , Zhang Yong
Published: June 2014

This paper briefly presents a Parallel Serial Hybrid Electric Vehicle structure combined with NAC institute, constructing a CAN Communication Network of Hybrid Electric Vehicle’s Powertrain and also defining the Communication protocol of the control Network. The Network constructed is tested on bench and prototype vehicle and by using CANstress, CANoe and some other Automotive network development tools, actual test and performance analysis have been conducted. The experiment result illustrates that the control network system arrives a high stable performance and real-time with low bus load and little error frames under high transmission speed and interference environment, and can meet requirement of HEV Powertrain of stability, real-time and accurate control. Besides that, we also constructs a Diagnostic Network, which fulfills the unified diagnostic services (UDS) defined by ISO14229.
Research on the Total Station Trigonometric Leveling Using Midway Method Replaces Three/Four Grade Leveling
Authors: Han Mao , Liu Mao Hua
Published: June 2014

In order to improve the precise of trigonometric leveling, analysis of the midway method by theoretical analysis and experiment. A formula is derived to calculate the elevation difference and the mean square error base on the error propagation law. The result of research includes: the midway method of total station trigonometric leveling is simple operated , it can replaces the three/four grade leveling through a variety of correction under certain conditions.
Simulation on Probe-Fed Rectangular Patch Antenna with the Minkowski Fractal Structure
Authors: Han Ruo Yan , He Wei , Lu Ping , Cai He Ling , Hong Jiao
Published: June 2014

The probe-fed rectangular patch antenna with the Minkowski fractal structure which for 2.45GHz was simulated by using high frequency electromagnetic simulation software HFSS V11.The Simulation results showed that it was similar to side-fed square patch antenna with the Minkowski fractal structure. The resonant frequency decreased with fractal iteration, and the size of the antenna could be miniaturized. And antenna pattern unchanged with fractal iteration mostly, which meet the application requirements basically.
Study on the Static Load Test of Bridge Inspection
Authors: Tian Fang , Xu Guang Ming
Published: June 2014

This practice mainly according to different position arrangement of bridge load vehicles (load test), then test the loading vehicle structure under the action of deformation and strain distribution in the cross section of the bridge deck system control parameters, such as through data and theoretical analysis, the test evaluates the performance of the bridge structure.
Design Car Fault Diagnosis System
Authors: Yan Shi Tong
Published: June 2014

Based on the domestic and foreign automobile fault diagnosis status and trends were compared in detail on Syria to study a low-power , high-precision , easy to carry and apply a wide degree of automotive fault diagnostic . This paper aims to study the C8051F020 fault diagnostic , fault depth diagnostic hardware and software design , understanding automotive fault diagnostic process .
Design of PLC Control System in Automatic Production Line for Casing Fin Tube
Authors: Xu Zhe , He Qing Yi , Shi Xiang
Published: June 2014

Finned tube is a kind of highly efficient heat exchange component, widely used in heat exchanger. In order to improve the automation level of finned tube production line, this paper, according to the composition of finned tube production line and the function of each part, designed the control scheme of the production line, including motor drive technology, hydraulics technology, PLC control technology etc. The control scheme makes raw material of aluminum sheet feeding, punching, shearing, winged, tube expanding process to form a whole, which improved the efficiency of the production line and the processing precision.
The Effect of Chip’s Size on the Performence of GaN-Based LED Chips
Authors: Kuang Hai , He Shi An , Luo Ying , Zhang Xiang Qing , Guo Mian Mian , Liu Lu
Published: June 2014

Before cutting into a single chip, we have tested LED chips with different sizes that is produced on the some condition. With different drive currents, we compared the luminous intensity and working voltage about the two samples. The results show that: within a certain range, the larger chip is better. Because of low light utilization rate, it isn’t the bigger of chip area the better the performance is. We should choose the best size in application.
Design of Remote Intelligent Meter Reading System
Authors: Tian Yu
Published: June 2014

This paper discusses the design of a remote intelligent meter reading system, remote intelligent meter reading system by automatic meter data and remote transmission of the way, can solve the problem of the household metering, with automatic meter reading, automatic charging, prepaid management, arrears cut function. The design solves the inaccurate measurement and data change two technical problems of smart meter reading system, remote meter reading system is mainly composed of the meter measuring sensor, meter reading collector, bus adapter, water and gas meter measuring signal is converted to electrical signals by meter measurement sensor, carries on two times of measurement through meter reading collector, bus adapter connected all the meter reading acquisition, and then is connected with the computer management, so as to realize the reading meter data "remote" function.
Phase Transition and Electronic Properties of LiBH4 via First-Principles Calculations
Authors: Wang Hai Ping
Published: June 2014

The transition phase and electronic properties of LiBH4 were investigated by ab initio plane-wave pseudopotential density functional theory method. According to the theoretical calculation, the phase sequence Pnma → P21/c → Cc is obtained. The phase transitions Pnma → P21/c and P21/c → Cc are at the pressure of 1.64 GPa and 2.83 GPa, respectively, by total energy-volume data. As the pressure increases, the value of the band gap energy is reduced from 7.1 (Pnma) to 6.1 eV (Cc). Moreover, the electronic properties of the high pressure phases are discussed. The electronic properties are linked to the band gap energy, total (partly) density of states and atoms (bond) populations.
Ergonomics Design in Multifunctional Reading Type Bed Model
Authors: Lu Chun Hui , Fang Hao Tian , Wan Cheng Peng , Tian Jia Qi , Liu Bin , Cui Lei Feng
Published: June 2014

People who often read books or type laptops in bed always blame they have serious problems in shoulders, neck, waist or cervical vertebra. The doctors explained that wrong gestures had hurt their lumbar vertebras and made people felt aches. This model designed changeable unit structure for people’s health in according with ergonomics theory. People can keep sitting or leaning on bed, give the adjustable style to let the body relax by more convenience control. The model adds the reading function by a small sliding table. All size in model is chosen according to the statistic figure. This design can help the old men; the immobile people and others who want do something in bed with comfortable seating position.
Dynamic Route Planning Algorithm with Impact Time Control
Authors: Fan Zuo E , Ma Pei Bei , Yao Yi
Published: June 2014

To achieve the tactics mission of cooperative attack at the fixed impact time, for multiple route planning anti-ship missiles, a dynamic route planning algorithm with impact time control is proposed. First, a recursive route planning algorithm is designed to choose navigation points and come to a reference route. Then, in order to control the impact time, the reference route is re-planned on line according to the error time between the fixed impact time and the estimated time to go. If the error time is positive, the reference route from the current navigation point to the next one is extended by maneuvering fly; if the error time is negative, the reference route is shorten by adjusting the location of navigation point. The realization of controlling the impact time is transferred to dynamically increase or decrease distance of the reference route. The simulation results show the validity and effectiveness of the proposed algorithm.
Fault-Tolerant Controller Design for Uncertain Networked Control Systems Based on Static Output Feedback
Authors: Yan Yong Gang , Cao Ping
Published: June 2014

The problem studied the robust fault-tolerant controller design for the uncertain networked control system, The considered system has actuator and sensor failures. Under the non-ideal network conditions such as time-delay, data packet dropout and mis-sequence, a model of the networked control systems is provided, The robust stability conditions are obtained in the situation of actuator and sensor failures based on Lyapunov Krsasovkii functional method and static output feedback by introducing some free-weighing matrices, Based on this sufficient condition, the static output feedback controller design method is deduced in terms of linear matrix inequalities. An illustrative example shows the effectiveness and feasibility of proposed method.
Intelligent Machine Body Repeater Communication Model
Authors: Mo Xue Zhi
Published: June 2014

as in the outside work, the intelligent robots cannot get external communications support, the model can set up their own relay communication method, even if there was a limit for the communication range for individual communications, and use of differential evolution algorithm and optimization process was carried out, then the method turn it into the nodes cover problem and use the platform tools for simulation process, its coverage efficiency is shown as 90% or more in a given map, which can obtain some practice value.
Intelligent Vision Tester Based on Embedded System
Authors: Yang Xue Feng , Chen Li Gang
Published: June 2014

To solve the problem that artificial visual acuity measuring efficiency is low in hospital and school,and waste of resources,this design introduces an intelligent vision test instrument.The instrument is controlled by Embedded system [1,2], including the power supply circuit, a wireless remote control circuit module,LED display circuit,digital display circuit,a voice circuit etc.Beginning of vision test after audio prompt.This time the LED random light under every line in the standard visual acuity chart.The test selects the direction of wireless remote control rocker of "up", "down", "left", "right"through the "E" the opening direction on standard visual acuity chart.Data is transmitted to the Embedded system,after data processing,to judge whether he is right and wrong,and then displayed.Intelligent vision testing instrument can achieve the anticipated goal,finally complete the design and production, The overall structure of the circuit device is simple, stable performance, the test results meet the requirements.
Modeling and Stability of Networked Cascade Control Systems
Authors: Zhao Hong
Published: June 2014

In this paper the modeling and stability analysis of networked cascade control systems (NCCSs) are discussed. A class of continuous-time NCCSs model with time-varying delays is described, in which the network-induced delays are assumed to be unknown, time-varying, and bounded. Based on the NCCSs model, the stability conditions of the NCCSs are proposed using Lyapunov-Krasovskii functional and the free-weighting matrix approach.
Movable Angle Cursor Positioning Ruler of Development
Authors: Ma Ting Hui
Published: June 2014

In the actual production process in plane grinder, they often encounter processing with angle plane, and so with angle plane in the grinding before we must locate the workpiece, but in reality the plane grinding machine in the production process is the lack of it can accurately locate the workpiece tool, Therefore, in view of the above in the processing of the existence of the problem, research and design a new type of movable angle cursor positioning ruler, the following discusses the structure design.
Multi-Agent Behavioral Control System for the Ore Grinding Process
Authors: Wu Li Li , Zheng Yan Ling , Chen Tie Jun
Published: June 2014

In this paper, a small multi-agent system (MAS) is proposed based on behavioral approach for the complex grinding processes. Causal association agents were established according to the material balance of grinding processes, and prediction agents and stability control agents were built by adding prediction and control algorithms. The simulation results prove that the system has good stability and anti-interference performance. Multi-agent behavioral control method can be considered as a potential solution to stabilize grinding processes.
Network Time-Delay Compensation Based on Narandra Stable Adaptive Control
Authors: Chen Tie Jun , Liu Ke Yi
Published: June 2014

A new delay compensation control algorithm is applied to the networked control system (NCS), in which the characters of random time-delay and packet loss involved. Firstly, the ideal model of networked control system is considered as a reference model, and then the Lyapunov stability theory is used to design an adaptive control algorithm which generates a bounded control input, it is guaranteed that generalized output error is closing to zero. Narandra stability adaptive controller is used in the networked control system, which has many advantages including simple algorithm, less time computing, fast response. The simulation results are shown that the networked control system is well controlled by this method.
Preparation of Low Molecular Weight Guar Gum for Fracturing by Enzymatic Degradation
Authors: Chen Feng , Wang Xu Guang , Yang Ren Shu
Published: June 2014

Guar gum was subjected to degradation in high concentration aqueous solution by enzymatic treating to obtain high concentration low molecular weight guar gum for fracturing. The study indicates that the high concentration guar gum aqueous solution can be degraded effectively by enzymatic treating. The enzymatic treating conditions were investigated and the optical enzymatic treating pH, temperature and enzyme add amount are respectively 6, 50°C and 0.1g/L, and various of low molecular weight guar gum with different molecular weight can be obtained by controlling the enzymatic treating time.
Prediction Method of Grinding Chatter Based on ARIMA
Authors: Yao Zi Liang , Wang Min , Zan Tao , Liu Guo Fu
Published: June 2014

The process of grinding chatter is divided into three states: stable grinding state, chatter gestation state and chatter state. The vibration signals of grinding process contain chatter features can correspond well to the changes of grinding process. By analyzing the natural frequency band energy ratio of grinding process, a method of grinding chatter prediction is proposed. Experimental results show that the natural frequency band energy ratio is beyond a certain threshold, chatter occurred, otherwise no chatter happened. The method of grinding prediction can provide reference for vibration monitoring in practice.
Regression Analysis of Pedestrian Fatality Risk and Impact Speed
Authors: Zhang Zhen , Zhao Gui Fan , Yang Na , Cheng Xiao
Published: June 2014

In order to study the relationship between pedestrian fatality risk and impact speed in domestic pedestrian traffic accidents. According to the frontal shapes of domestic vehicles, this paper divided the vehicle types into long head car, short head car and flat car. Used in-depth accident study method to collect a large number of actual traffic accidents cases. The logistic regression models of pedestrian fatality risk and impact speed of long head car, short head car and flat car were established. The Wald Chi-Square test was used to validate the accuracy of the model. The results shows: The long head car corresponds to the lowest pedestrian fatality risk, the flat car corresponds to the highest values. Compared with developed countries, the developed emergency and medical care play an important role in reducing the pedestrian fatality risk.
Research and Design of the Material Management System Based on Digital Pipeline
Authors: Wang Jin Kun , Pu Guang Yue , Pan Chun Lei , Liu Hong Wei , Guo Song
Published: June 2014

For the current situation and deficiency of the enterprise material management system: huge material data, species diversity, single management means, management behavior is not standard, people involved in most materials management activities, materials management standards is not unique, materiel maintenance and resource sharing is difficult, and so on.
Research on Application of Blind Source Separation in Rolling Bearing Fault Diagnosis Based on Particle Swarm Optimization
Authors: Zhou Hao , Chen Chang Zheng , Sun Xian Ming , Liu Huan
Published: June 2014

This paper presents blind source separation of rolling bearing based on particle swarm optimization. The algorithm combines the advantages of both blind source separation and particle swarm optimization. Through the experiment it is shown that the algorithm can separate the signals collected from rolling bearing and gearbox effectively, which can provide a new method for fault diagnosis and signal processing of machinery equipment.
Simulation of PMSM Servo Stiffness Using Control System Parameters
Authors: Yin Ming , Ma Yan Xue , Bai Li Juan
Published: June 2014

Through the analysis of Permanent Magnet Synchronous Motor (PMSM) servo system, this paper is aimed to deduce the transfer function model of position output caused by the disturbance input, using the Matlab software for simulation calculation, and to analyze the change of the Bode diagram of the disturbance model when the control system parameter value changes. In addition, based on the analysis, the paper will identify the influence law of the external disturbance at different frequencies on the system servo stiffness. The simulation and analysis will show that adjusting the certain control system parameters can improve the system servo stiffness at different frequencies of the external disturbance.
Studies on Ships Collision Avoidance with SAPSO Arithmetic
Authors: Tian Bo , Gao Wei Jie , Wang Qian
Published: June 2014

Vessel collision prevention issue has always been the focus of the nautical science research. This paper considers a variety of factors that affect the safety of the ship collision avoidance to optimize the research on multi-boat collision avoidance magnitude, by using the improved collision risk index model and simulated annealing particle swarm optimization. The result of the simulation indicates that SAPSO can deal with the problems of angle of avoiding collision, results are accurate and feasible.
Study on the Dynamic Weighing Measurement Accuracy of the No Parking Weight Charging System
Authors: Li Hao , Gao Zhi Wei , Wang Xuan Cang , Wei Qiao
Published: June 2014

In this paper, the intelligent weight charging system of heavy loaded highway was developed using piezoelectric quartz sensors, combined with the improved ETC system, in order to solve the congestion problem in highway toll station caused by heavy load vehicles. By study of the effects of different layout and spacing of sensors on the dynamic weighing accuracy and speed, then the optimal layout system of sensors was raised. Real vehicle test was carried out in Changwu charging station of highway from Fuzhou to Yinchuan. Experimental results show that: the optimized sensors enable heavy load vehicles passing through the toll stations in speed of 30km/h,and the accuracy of weighing was maintained within ± 2.5%. And the optimized sensors are able to overcome the errors caused by illegal operations, reaching the purpose of highway congestion management.
Properties Study of Mixed Silane Films on the Surface of Steel
Authors: Sun Zhen Dong , Yang Yan Ning , Li Qing Peng , Liu Jian Guo , Yan Chuan Wei
Published: June 2014

The mixed silane films were obtained on the surface of the Q235 steel sheets by directly immersing in a mixed silane solution containing γ-Glycidoxypropyltriethoxysilane (γ-GPS) and 1, 2-bis (triethoxysilyl) ethane (BTSE), The chemical compositions and microstructures of the films were examined by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier Transform infrared spectroscopy (FTIR).The corrosion resistances were investigated by electrochemical measurements and neutral salt spray (NSS) test. The effects of silane films to the epoxy coating were investigated through the adhesive property test. The results showed that the γ-GPS/BTSE mixed silane film could remarkably improve the corrosion resistance of epoxy coating and prolong its service life.
Technology of Mobile Phone 3D Model Reconstruction Based on the Geomagic Studio
Authors: Yu Hong Mei , Wang Zi Qi
Published: June 2014

Studied the modeling strategy and application features of rapid surfacing reconstruction system. The 3D digital model reconstruction of real mobile phone as an example, using non-contact optical 3D scanning point cloud data access to mobile phone, get the mobile phone CAD model through data processing by point stage, polygon stage and shape stage, and the various stages of the process and the target are discussed in this paper.
Temporary Grounding Lines Detection Method for Distribution Network and its EMTDC Simulation
Authors: Cheng Le Feng , Yin Lin Fei , Jiang Jing , Yu Tao
Published: June 2014

In order to solve the safety problem of disassembling the grounding wire temporarily for line maintenance and prevent an anthropogenic short-circuit accident from happening, this paper firstly proposes two safe and convenient detection methods based on directly signal injecting and induced voltage. Then, adopt the power system simulation software PSCAD/EMTDC to build model, some important factors affecting the effect of detecting are studied, which include frequency of signal, no-load transformer, magnetic induced voltage, joint use on the same tower, etc. Finally, a temporary ground wire detection device is developed which is based on the detection methods proposed and also based on modern power electronics technology and signal processing technology, and the field test verify the feasibility and practicability. The developed detection device has some advantages, such as safe-testing, simple structure and operation, easy promotion and so on.
The Development of a Potentiometer Electric Parameter Comprehensive Test Instrument
Authors: Yuan Jing Ping , Yu Fen Fen
Published: June 2014

This paper describes a sort of integrated tester controlled by STC series microcontroller that can be used to test simplex and duplex potentiometer’s total resistance, front and rear zero resistance, dynamic noise and duplex potentiometer synchronization feature. Multi-CPU parallel working mode is adopted by the tester. This paper mainly expounds the working principle of this test instrument, its software and hardware composition and the communication protocol between each part.
Whole Trajectory Design Optimization of Self-Propelled Artillery Based on Adaptive Genetic Algorithm
Authors: Niu Fu Qiang , Xu Cheng , Xiao Xiao
Published: June 2014

An optimization design method of whole trajectory for a self-propelled artillery, including interior, exterior and terminal ballistic trajectory, is proposed. The structural parameters of the projectile, ballistic parameters, charge weight and explosive weight are selected as the design variables. The optimization objectives are the largest lethal area, the longest range at 45° and the highest utilization of propellant energy. Constraining the maximum bore pressure, muzzle pressure, packing density and the relative position of propellant burning end, the whole trajectory optimization model of the self-propelled is established. The model is calculated using both genetic algorithm and adaptive genetic algorithm. Optimization results show that the effect and convergence rate of the adaptive genetic algorithm are better than those of the genetic algorithm. The method in this paper play an important role in theory reference and engineering application for the whole trajectory design of the self-propelled artillery.
Based on Pro/E Mouse Shell Injection Mold Design
Authors: Ao Pei Yun
Published: June 2014

Mouse shell in thispaper, based on pro/engineer techniques for the modelling, the structure andinjection mold design and analysis, in order to achieve shorten productdevelopment cycle, improve product quality, reduce cost and flexible design andmanufacture of the purpose of quick response to market, provides a new methodfor mould design.
Based on Pro/E’s CAD/CAM Integration of Ceramic Gear
Authors: Wen Zhou , Zhang Jun Ling , Gong Xiu Duan
Published: June 2014

To improve the designers’work efficiency, reduce the design strength, ceramicgear modeling was built through three-dimensional softwarePro/E, and the model was secondary developed by using Pro/Toolkit, Pro/Esecondary development tools. Designer design independent program interface fordrive Pro/E parameters of three-dimensional modeling of the ceramic gear.
The Research about Influential Factors of the New Network of Community Based on Behavior Psychological of Audience
Authors: Teng Chun E , He Chun Yu
Published: June 2014

picked the article on the motives of users toparticipate in the new network community has carried on the empirical research.Study found that users have utility was associated with a significant networkcommunity scale and influence use intention, did not find any subjectivecrowding out, user has evaluationed one network community is not affected byits size, but will respond to this. Thus, a new network community not only toattract users with high quality service, also want to provide the correspondingeconomic incentives, facilitate users to actively participate in.
Design and Implementation of Software for Distribution Service Restoration after Fault Based on Load Balancing
Authors: Li Yan Hong , Zhang Zhi Rong
Published: June 2014

Whena fault of the distribution network has occurred, it is necessary to pinpointthe type of the fault and its location and to isolation the fault by sectionswitches. It is then the task toattempts to restore service to as many unfaulted sections of the feeder aspossible via the available sources. Torestore feeder sections, the feeder must be bothering least one backup sourcewith sufficient capacity to bear the additional load. A method based on the backup feeder loadbalancing is proposed and software is developed. The service restores software obtains thedistribution operation data from distribution automation system (SCADA) and thefeeder parameters from power grid production management system (GPMS). Then compares that loads with the sparecapacity for backup sources and bring out the service restoration plan for thedispatch staff.
Computer Network Security Threats and Security Technology Research
Authors: Zhang Yan Kun
Published: June 2014

Networksecurity network system is presented, including hardware, software, and itstransmission in the network information security, network security threatsmainly include: software vulnerabilities, improper configuration, safetyconsciousness is not strong, virus, hacker attacks, etc. Is not only afirewall, network security is not anti-virus, intrusion monitoring, firewall,identity authentication, encryption, and other products of simple stack, butfrom the system to the application, from the device to the service ofrelatively complete, the system of the combination of security products.
A Approach to Change Detection for HR Image
Authors: Huang Zuo Wei , Wu Shu Guang , Zhang Tao Xin
Published: June 2014

Hyperspectral remote sensing is the multi-dimensional information obtaining technology,which combines target detection and spectral imaging technology together, In order to accord with the condition of hyperspectral imagery，the paper developed an optimized ICA algorithm for change detection to describe the statistical distribution of the data. By processing these abundance maps, change of different classes of objects can be obtained..A approach is capable of self-adaptation, and can be applied to hyperspectral images with different characteristics. Experiment results demonstrate that the ICA-based hyperspectral change detection performs better than other traditional methods with a high detection rate and a low false detection rate.
A Fault Location Method in Distribution Network Based on Firefly Algorithm
Authors: Wang Qian , Huang Wei
Published: June 2014

In the distribution network fault location, the impact of information distortion needs to be to focus on, especially when the short-circuit current is used as the fault information. Considering the distortion or failure of real-time information and other issues, the quick location method of the failure point in distribution network is analyzed. Based on the mathematical model of distribution network fault location, firefly algorithm is applied. According to the characteristics of fault location objective function in distribution network, convergence criterion is proposed, which is suitable for fault location mathematical model.
A New Relational Database Watermarking Algorithm Based on Chaos
Authors: Han Yin Dan , Xu Jiang Feng
Published: June 2014

This paper proposed a new database watermarking algorithm based on a numerical attribute of database. Firstly, the copyright image was encrypted by a chaotic system to produce a binary sequence as the watermark signal. Then it used two hash functions to realize the watermark embedding. The first hash value was calculated by using the connection value of the key and the primary key. Then it filtered out the tuples whose corresponding hash value was even. The second double-hash value was calculated by using the connection of the key and the first hash value, which was used to label tuples and partition tuples. The first hash value was used as a control signal to adjust the parity of the candidate attribute bit when the watermark was embedded. Theoretical analysis and experimental results indicate that the algorithm reduces the amount of embedding watermark and improves the robustness and security of the watermark.
A New Ultrasound Image Denoising Method Combining Nonsubsampled Contourlet Transform and Edge-Preserving Self-Snake Model
Authors: Wang Xin Zheng , Bu Xiong Zhu , Yu Jing
Published: June 2014

In order to suppressing the speckle noise in ultrasound image effectively, a new hybrid denoising method is proposed by combining the nonsubsampled contourlet transform (NSCT) with edge-preserving self-snake model (EPSSM). The method comprises of three key steps. Firstly, the noise model is established for the sake of analyzing. Then the map estimation with bivariate shrinkage function which uses the inter-scale dependency is developed to deal with the NSCT coefficients. Finally, the EPSSM is introduced to enhance the edge and reduce the blurring which is caused by the second steps. The comparative experiments show that the proposed approach gets better results than other well-known methods in the area of the evaluation values and visual effect.
A Real Time Data Transferring Method for Electric System
Authors: Lu Li Ming , Chen Jun , Lou Ping , Huang Li , Fei Dong Hu , Zhang Ye , Li Xian Hui , Shi Ying Jie , Su Yong , Zhu Heng
Published: June 2014

A real-time data transferring method is opened to public for data transferring problem by different security region and different database in electric system. Interface service routine (ISR) is used for data obtaining, transferring format, analyzing and committing. Transit service routine (TSR) is used for data file transmitting and reducing the pressure of the ISR. E form file is used as a carrier to transmitting data file with transmitting tool of the segregate instrument. The method brings about data transferring in an on line, security and stabilized way, and makes certain the existing production system normal and steady working.
An E-Business Model Based on XML and Web Services
Authors: Chen Zhen Yu , Yu Wen Ye
Published: June 2014

The modern B2B electronic business system should be able to make the enterprise meet better the need of the market, which must have some characteristics of cross-organization, cross-enterprises and frequent interaction. The paper proposes a dynamic electronic commerce model based on XML and Web Services, which consists of presentation layer, Web Services layer, application service layer, data integration layer and data layer. The dynamic e-business model can not only implement the loose system integration, but also be able to reuse the existing resources, and reduce to the cost of system integration and implementation time.
Animation Type Analysis after Using Computer 3D Animation Technology
Authors: Sun Zhen Tao
Published: June 2014

Type of computer animation using 3D technology can be divided under three seeds that mimic 2D animation, imitating traditional 3D animation, imitating real movie. Mimic 2D animation and imitating real movie are infinitely close with 2D animation and real film movie. Imitating traditional 3D animation is completely different from the traditional three-dimensional animation, which won the visual realism. "Visual realism" to get that 3D animation and real film movie stood on the same competition platform.
Research on the Properties and Defects of Carbon Nanotubes
Authors: Zhang A Ying
Published: June 2014

Carbon nanotube is one of the strongest materials in nature. Carbon nanotubes (CNTs) are the strongest and stiffest materials yet discovered in terms of tensile strength and elastic modulus respectively. This strength results from the covalent sp2bonds formed between the individual carbon atoms. A multi-walled carbon nanotube was tested to have a tensile strength of 63 gigapascals (GPa). Further studies revealed that individual CNT shells have strengths of up to ~100 GPa, which is in agreement with quantum/atomistic models. Since carbon nanotubes have a low density for a solid of 1.3 to 1.4 g/cm3, its specific strength of up to 48,000 kN·m·kg-1is the best of known materials, compared to high-carbon steel’s 154 kN·m·kg-1.
Design and Implementation of Equipment Management Software for EAST Neutral Beam Injector
Authors: Cui Qing Long , Hu Chun Dong , Zhang Xiao Dan , Zhao Yuan Zhe , Wu De Yun , Zhang Rui , Lin Yu Lian , Sheng Peng
Published: June 2014

In order to remotely manage and monitor the experimental devices in Neutral Beam Injection (NBI) system, an equipment management client software is developed as the human-machine interface between the server control layer and the field control layer. The client software based on network technologies communicates with main control server. NBI Equipment management client software developed in C/C++ language has been deployed to the distributed field control computers with the Windows operating system. Experimental results show that the program ensures equipment security and promotes the progress of the experimental operation smoothly.
Design and Implementation of Serial RapidIO Based on DSP and FPGA
Authors: Liu Jun , Tian Yan , Hao Wei , Qu Lei
Published: June 2014

In order to meet the request of high-speed data exchange in embedded systems, this paper details the high-speed SRIO (Serial RapidIO) interface protocol and the process of SRIO access timing between the local endpoint devices and the remote endpoint devices. And also we implement the design of the new high-performance RapidIO interconnection between DSP and FPGA. Through the performance testing of SRIO data transmission system, experimental results show that the design can stably transfer data at high speed between processors.
Development of Digital Image Processing System Based on MATLAB
Authors: Zhang Ya Dong , Zhu Shun Min , Li Li
Published: June 2014

Digital image processing is a technology that using computer to process images through a certain algorithm. It has been widely used in many areas of engineering and military. The system which is fit for the researching and teaching plays a very important role in the fields of scientific research and education. This paper discusses the development of image processing system and image processing technique in MATLAB. In practice, the operation of the system is convenient its interface is beautiful and its vision is very good.
Preparation of Pulse Electrodeposited Mo-Ni Coating
Authors: Liu Xiao Zhen , Xia Le Tian , Gen Jian Qiang , Liu Xiao Zhou , Chen Jie , Luo Lu
Published: June 2014

Mo-Ni coatings were prepared on Ni alloy by pulse electrodeposition method. The effects of current density, electrodeposition temperature, frequency, duty cycle and electrodeposition time on microhardness of Mo-Ni coating were researched, respectively. Microhardness of Mo-Ni coating increases with the increase of current density, electrodeposition temperature, frequency and electro-deposition time in 17.75 A/dm2 ~ 19.25 A/dm2. 21 °C~ 25 °C, 1000 Hz ~ 5000 Hz and 10 min ~ 20 min, respectively. Microhardness of Mo-Ni coating decreases with the increase of electrodeposition temperature, electrodeposition time and duty cycle in 25 °C ~ 37 °C, 20 min ~ 30 min and 0.5 ~ 0.9, respectively. In the range of current density from 19.25A/dm2 to 20.75 A/dm2, microhardness of Mo-Ni coating is neariy constant with the increase of current density. When electrodeposition parameters: current density 19.25 A/dm2, electro-deposition temperature 25 °C, frequency 5000 Hz, duty cycle 0.5 and electrodeposition time 20 min, microhardness of Mo-Ni coatin is as high as 707.9 HV.