bluuebunny/crossref_metadata_2025 huggingface dataset:
Bonding Performance of Wood Treatment by Oxygen and Nitrogen Cold Plasma
Authors: Wang Hong Yan , Du Guan Ben , Li Qin , Xu Rui Ying , Yuan Shao Fei
Published: September 2014

The wood were treated by N2,O2cold plasma with the processing power 300W, the treatment duration 5 min, then the treated wood was bonded with MUF to valve the bonding performance, the contact angles of the treated/untreated wood were tested. The chemical composition on the surface of wood with or without N2cold plasma treatment also was analyzed by X-ray photoelectron spectroscopy (XPS). The results showed: the contact angles of the surface decreased, the surface free energy increased evidently that treated by N2or O2cold plasma, and the average bonding performance of wood that treated by cold plasma (whether N2or O2) increased obviously, more than 50% comparing with that untreated. The XPS analysis showed the atomic ratio O/C has increased, and more groups were oxidized or more peroxides were formed on the surface of wood, and the N element was introduced to the wood surface after nitrogen cold plasma treatment and it was guessed to the group of –NH2.
Calculation of Axial Rolling Torque in Radial-Axial Ring Rolling Process
Authors: Wang Tao , Wang Qiang
Published: September 2014

The importance of the axial rolling torque to design equipment and process is described. On the basis of the established formula of axial rolling force, the formula of axial rolling torque is derived by using the moving volume theory of energy method. The influence of processing parameters on the axial rolling torque is investigated. It is found that the axial rolling torque increases with the increase of the outer diameter of ring, and the axial rolling torque decreases with the increase of the inside diameter of ring. The greater the feed in axial direction, the greater the axial rolling torque. The correctness of the formula is verified by calculating actual examples.
Comparison for the Test Methods of Fatigue Life of Welded Structures
Authors: Ma Yuan Yuan , Xie Li Yang
Published: September 2014

Taking the local parts of high-speed training service as the research object, the static form of the finite element model is established, and the dangerous parts of the stress distribution under different load form corresponding to loading and displacement conditions applied in experimental test is calculated. Fatigue life of the same welding parts of the different forms due to the state of the uniaxial tensile and the bending is respectively tested in the lab, the life distribution and characteristics of their statistics are obtained; Compared to the stress distribution of dangerous parts and data of the test, analysis that the similar parameters of life and failure forms can be received if it choose the reasonable load parameters in different form and loading in the test.
Effects of Phase Matching Pattern on Pulse Laser-Arc Hybrid Welding Process
Authors: Liu Li Ming , Song Chao , Song Qiu Ping , Song Gang
Published: September 2014

This paper proposed a method on accurate phase matching control between the pulse laser and the AC TIG arc in real time, and a pulse laser-arc hybrid heat source phase matching control system is developed as well. With the utilization of this system in two typical matching cases that the pulse laser acts on the peak and the trough of the arc welding current waveform, effect regulations on weld formation, weld penetration depth and hybrid plasma shape are studied during welding on magnesium alloy AZ61. Results indicate that, when the pulse laser acting on the peak of arc welding current waveform, the weld formation is better than that of on the trough. However, when pulse laser act on the arc trough the weld penetration depth is deeper than that of on the peak.
Experimental Research on Turning Ni-Based Superalloy with MQL Using Organic Alcohols
Authors: Wang Hui , Ni Fu Sheng , Gu Lei
Published: September 2014

The machinability of Nickel-based superalloy GH4169 is poor. The traditional method to machining is to apply cutting fluids with the active additives, which, however, cause environmental pollution and health problems. In this paper, the MQL using organic alcohols, instead of cutting fluids, was applied on turning for the aim of green cutting GH4169. The effects of MQL, wet and dry cutting on cutting force and the chip deformation have been examined with coats carbide tools YBC251. The results of experiments indicated that the application of MQL produced lower cutting force with about 20 percent reduction compared to dry cutting, and it is advantageous in chip curl. The research results show that clean production was achieved in metal cutting associated with MQL using alcohols for cooling and lubricating.
Investigation of Femtosecond Laser Ablation Threshold for Nickel Template
Authors: Zhang Lei , Cao Xiao Wen , Li Shun Guang , Xiang Ru Yi , Sun Hui Chao
Published: September 2014

This paper presents a theoretical and experimental investigation into the ablation threshold of nickel template by femtosecond laser in air at atmospheric pressure. The laser pulses used for the study are 800 nm in wavelength, 100fs in pulse duration, and 1KHz in repetition rate. The two-temperature model is used to predict the single-pulse ablation threshold for nickel theoretically. Micro-hole ablation experiments are carried out in air by focusing the femtosecond laser beam on the nickel target surface at normal incidence with the long-focus objective lens of enlargement factor 50 and NA=0.7 to determine the single-pulse and multi-pulse ablation thresholds for nickel by setting up the relationship between the measured hole diameters and the pulse energies. The single pulse ablation threshold of 4132.98 Jm-2obtained experimentally is very close to that of 3907.99 Jm-2predicted by two-temperature model. The incubation factorξ, which describes the changes of the multi-pulse ablation thresholds with the number of pulses, is determined to be 0.812 for nickel.
Mechanical Performance Prediction of Cold Rolled Ribbed Steel Bars Based on RBF Network with Dividing Variable Space According to Original Materials’ Tensile Strength
Authors: Xing Bang Sheng , Xu Le
Published: September 2014

This paper proposes a method of mechanical performance prediction of cold rolled ribbed steel bars based on RBF network with dividing variable space according to original materials’ tensile strength. It builds a sample variable space partitioning model according to the original materials’ tensile strength. It also studies the performance prediction of cold rolled ribbed steel bars based on the 4-in & 1-out RBF network and the performance prediction of cold rolled ribbed steel bars based on the 4-in & 2-out RBF network. The results show that this method can reliably predict the mechanical performance of cold rolled ribbed steel bars, and the predictive effect of the 4-in & 1-out RBF network model based on dividing variable space according to original materials’ tensile strength is superior to the 4-in & 2-out RBF network model.
Optimization of Thickness Uniformity for Two Times Spray Technology
Authors: Zeng Yong , Zha Wen Wei
Published: September 2014

Due to the optimization problem of coating thickness uniformity for two times spray technology, an optimization method of coating thickness uniformity for two times spray technology was proposed based on the optimized spray trajectory of one time. Based on the established tool model and complex curved surface was partitioned into several plane patches, the model of coating thickness was established for two times spray on the plane. The optimization model of coating uniformity was given and the golden section method was used to solve it. Simulation result show that the feasibility and availability of optimization model; the coating uniformity was improved effectively after optimization for two times spray trajectory.
Gas Sealing Performance Study of Metal W Shaped Seal Ring
Authors: Xing Min Jie , Xue Qing , Suo Shuang Fu , Liu Chun Yan
Published: September 2014

Gas sealing performance of metal seal ring directly affects the security and reliability of equipment operation. Gas static seals of W-ring is taken as a study object, based on the theory of rough surface contact model and the theory of gas average flow model in the rough surface gap, the gas sealing leakage model is established to analyze the relationship between the leakage and the sealing load and surface roughness parameters.
Research on Deflection Analysis and Compensation Method of Ram of Boring and Milling Machining Center
Authors: Xin Long , Cui Shi Chao , Shu Qi Lin
Published: September 2014

In this paper, the ram of boring and milling machining center is taken as the research object. A new method that hydraulic pull rods compensation is proposed to solve the problem of deformation compensation of long stroke ram of boring and milling machining center. Firstly, the method of finite element analysis is used to get the laws of ram deformation and the relationship curve between the ram deformation and the stroke of ram. Secondly, the preliminary calculation value of pull rods compensation force is derived based on the theoretical analysis of material mechanics. The relationship curve between compensation force and the stroke of ram is obtained by finite element analysis and polynomial least squares method. Finally, the analyzed results are as follows: the laws of ram deformation distribution is accurately predicted by the used method, the deflection error of the ram is well controlled,and the machining precision is significantly improved.
Research on Quality Control of Motor Shell Coating Process
Authors: Mu Guang Yu , Li Li , Xue Dong Juan
Published: September 2014

SPC method is a process controlling tool with the aid of mathematical method. Define, Measure, Analysis, Improvement and Control is the implementation processes of quality management. Combined with the two methods, the quality fluctuation in the production process could be controlled effectively and qualified products rate could be enhanced excellently. In this paper, the film thickness problem of motor shell coating production line has been studied based on statistical process control and DMAIC processes. The Pareto diagram, cause and effect diagram, operation chart are used to inspect production defects in the process. At same time, the factors leading to product defects are determined. Then, DOE method is applied to find the best parameters of electrophoresis coating process. SPC method is adopted to monitor the improved film thickness. The results show that quality level of coating process has improved greatly.
Study of Formed Milling Cutter for Involute Gear with Small Numbers of Teeth
Authors: Gui Xing Chao , Sun Yue Hai , Sun Qiang , Xiao Jing
Published: September 2014

After its addendum modification and tangent modification of involute gear with fewer teeth, its addendum becomes pointed, which results in the bigger difference between the tooth profile of involute gear with fewer teeth and that of the standard. The equation of tooth profile is deduced in condition of pointed addendum of involute gear with fewer teeth and its 3D mathematic model is built. Based on the principle of form milling machining, relative position between the gear and workpiece is found when form machining. Then contact lines of cutter and workpiece are derived and revolution surface and axial section of formed cutter are obtained. Simulating machining is made after the cutter model is built in 3D software. It’s found that the gear obtained by simulating machining coincides fully with that built based on equation of tooth profile, which shows the validity of form milling machining.
Study on Prediction Model of Springback Based on Support Vector Machine
Authors: Su Shao Juan , Hu Yong , Wang Cheng Fang
Published: September 2014

Accurate prediction and effective control springback has a great significance to the plate cold bending forming. Based on the analysis of the support vector machine method principle and structure, Study on support vector machine prediction process based on MATLAB and prediction models about radius and resilience is set up. And the results predicted were compared with BP neural network prediction results to verify the accuracy.To provide an effective method for the accurate prediction springback.
Effect of Micro-Alloyed Treatment for 5183 Welding Wire on Microstructure and Tensile Property of Welded Joint
Authors: Wang Xiao Ming , Zhu Sheng , Zhao Zhi Hao , Wang Qi Wei , Zhao Xiao Dong
Published: September 2014

5183 welding wire micro-alloyed using Sc, Zr, Er and automatic MIG welding system applied to weld 7A52 aluminum alloy. Optical microscope and universal tensile testing machine utilized to investigate microstructure and tensile property of welded joint, respectively. The results indicated that welded zone and fused zone was composed of uniform isometric crystal and tiny isometric dendrite crystal when the welded joint was fabricated by using 5183 welding wire micro-alloyed via rare earth element, respectively. Tensile strength and specific elongation of welded zone was improved utmostly when the 5183 welding wire micro-alloyed treatment via single Sc or Zr, respectively. Owing to mirco-alloyed treatment of 5183 welding wire by using Sc, Zr or Er, a large number of Al3Sc, Al3Zr, Al3Er granules had generated in micro-poll, which played heterogeneous nucleation role and refined microstructure of welded zone. Meanwhile, there emerged nanoscaled A13Sc, A13Zr, Al3Er strengthening phase dispersed in welded zone, which had led welded joint to exhibit exclent tensile strength.
Numerical Simulation of Temperature Field in Laser Remanufacturing
Authors: Dong Ling , Yang Xi Chen , Wang Yun Shan , Lei Jian Bo
Published: September 2014

It plays an important role in guiding laser remanufacturing process and process control to research temperature field of laser remanufacturing. A numerical simulation method of temperature field based on MATLAB PDE Tool is proposed. Theoretical model of temperature field is presented. The temperature fields at different times are calculated and simulated with finite element method and MATLAB software with PDE Toolbox. The results show that this method can accurately calculate the temperature distribution of the laser remanufacturing process. The simulation results are helpful to optimize process parameters and to improve the quality of laser remanufacturing.
The Researches on the BTA Drill Wear Characteristics
Authors: Huang Xiao Bin , Shen Xing Quan
Published: September 2014

The BTA drill is one of the most widely used tool in deep holes drilling. The structural features of the BTA tool was analyzed, and the wear forms of the BTA cutting inserts was the focus of the study, and then propose a way to improve the BTA deep hole cutter abnormal wear. Through mass practices that improving abnormal wear of the drill can effectively improve the hole machining accuracy and surface quality and reduce processing costs.
Detection of Mechanical Properties of Reinforced Concrete Pipes and Affected the Quality of Construction
Authors: Yang Yan Min , Zhang Run Tao , Qu Bo , Sun Jian Ping
Published: September 2014

Through analyzing construction method specimens parameter detection and external pressure loading test,test drainage construction technical indicators reinforced concrete pipes,cracks load,failure load,local deformation and overall deformation,research and evaluation of the performance of its force drainage construction quality management.
Choosing the Right Type of Windows to Improve Energy Efficiency of Buildings
Authors: Vatin Nikolay , Gamayunova Olga
Published: September 2014

During construction or renovation of the building there is a question of choice windows. The modern market offers several kinds of windows: wooden, plastic, aluminum, and combined models. The most common and constantly competing with each other are wooden and plastic windows. This paper discusses the advantages and disadvantages of all types of windows and offers the advice on selecting the type of windows for energy efficiency in buildings.
An Efficient Concealment Algorithm for Inter Frames Based on Block-Level and Pixel-Level Motion Vector Extrapolation
Authors: Wei Geng , Wang Ruo Ying , Zhang Yu Dong
Published: September 2014

In this paper, a frame concealment scheme is proposed to combat the channel errors by using block-level and pixel-level motion vector extrapolation (MVE). Firstly, the proposed algorithm classifys the lost blocks into different types and then determines their corresponding MVs. Secondly, by using the pixel-level MV extrapolation, the candidate MV set of different lost pixels is obtained combined with the MVs of the blocks. Simulation results show this method is highly effective in sense of PSNR.
Paper Currency Image Features Extraction and Recognition Based on Gabor Filter
Authors: Liu Xi Wen , Liu Chao Ying
Published: September 2014

The paper currency image recognition method based on Gabor filter set is discussed in this paper. According to the paper currency image features, the suitable parameters of Gabor filter set are selected for the extraction of paper currency characteristics, the multi-scale and multi-directional texture characteristics of paper currency image are gotten; then the texture images are meshed, and the row and column projection sum of grid pixels' average grey are calculated, finally, the template match method based on grid projection characteristics is used for paper currency recognition. Experiments show that, this method has strong anti-interference ability, it can raise the recognition rate of old or dirty paper currency greatly, and it costs little time.
Retrieval Model Based on Image Content Features
Authors: Xu Bing
Published: September 2014

This paper presents fuzzy color histogram feature-based image retrieval method and texture spectrum fuzzy histogram feature analyzes the image database indexing techniques and the introduction of the experimental system for an improved method of fuzzy indexes. Algorithm reflects the underlying characteristics of high-level concepts and integration, relevance feedback and machine learning mechanism combining ideas. In this paper, the algorithm full processing power of computer systems, has a certain reference value and practical significance.
A Speculative Approach to Improve the Double Instruction Executions in the Embedded Chips
Authors: Lu Xiang Zhi , Dai Hong Jun , Ju Lei
Published: September 2014

Diminutive devices of present and future microprocessor generations are drawing increased attentions for transient errors. To address reliability issues, fault tolerance mechanisms must be taken into consideration. In this paper, we involve Reliability Station (RS) into modern superscalar out-of-order data path. In our proposed mechanism, each instruction in the pipeline will be executed twice and the dual results are stored in RS before they can be used. The fault detection is completed by a comparison between the two results and the recovery is achieved by re-executed the corresponding instructions. The simulation results of 12 benchmarks chosen from spec2000 and mibench show that the performance loss of our solution ranges from 30.29% to 83.32% with an average of 54.90% compared to single instruction execution, which is lower than that of Double Instruction Execution (DIE) schemes with an average of 78.42%. Meanwhile, due to the high efficiency of the recovery, our mechanism will exhibit better performance and power efficiency than DIEs within high transient error rates.
Design and Simulation of OFDM System Based on Matlab
Authors: Sha Xin Xin , Zhou Jian , Song Yuan Xue
Published: September 2014

OFDM is a key modulation and multiplexing technique. The basic system structure of OFDM is introduced firstly. This paper chose appropriate implementation schemes for channel coding, PAPR(Peak To Average Power Ratio) reducing and synchronization of the OFDM system based on the minimum BER(Bit Error Rate). Finally, the paper realized the simulation and got the BER in different SNR(Signal To Noise Ratio) in the matlab environment .
Design of Smart Home System Based on Zigbee
Authors: Li Zhong Min , Song Mao , Gao Lu
Published: September 2014

Constructing efficient, convenient and cozy home environment has become the current hot spot by using Zigbee wireless communication technology. This paper simply introduces ZigBee technology including the architecture and network topology of Zigbee2007/Pro protocol stack firstly, and then proposes a design plan of a remote supervisory control system based on Zigbee2007/Pro protocol stack for smart home applications and shows the hardware and software design of the system. This system uses ZigBee Wireless Technology to build home internal network, and connect a variety of sensors and home appliance controller to Zigbee network node. Various signals collected by a few end-nodes may be delivered by this system to the main control module, which will analyze and process them. Then the main control module transfers this information to internet or cellphone through the Ethernet and GSM/GPRS network to remotely and locally monitor and control family inner environment and household appliances. Furthermore, the working condition of the system can be traced into the SD card.
Passive Optical Network System Performance Analysis Using a 10 Gbit/s DML
Authors: Wu Di Ying , Meng Fan Bo , Li Ran , Liu Rong Sheng , Wu Fan
Published: September 2014

As a promising technology for broadband communication, Passive Optical Network (PON) has been deployed to support the communication in smart grid system. This paper theoretically analyzes the influences on Directly Modulated Laser (DML)-based PON system performance including Bit Error Rate (BER) and power budget. First, we establish the DML-based PON system model, and then the system performances are simulated under different linewidth enhancement factor, received optical power and fiber length. Simulation results show the increase in received optical power to maintain a given BER due to fiber nonlinearities. This research provides a theoretical guidance on the PON system design.
Study of Hierarchical Voltage Predictive Control for Power System
Authors: Zhao Hong Shan , Wang Bin Bin , Lan Xiao Ming
Published: September 2014

This paper presents a hierarchical voltage predictive control (HVPC) method. In the hierarchical structure, the low-layer power system model is composed of generators, network, loads and automatic voltage regulators (AVRs) including excitation controllers, shunt capacitors and so on. Voltage predictive model which reflects global dynamic behaviors of power system and constrains of states and inputs are considered in the high-layer. It uses the least-square residual of system inputs and outputs as the objection function to establish the optimization problem of voltage predictive control. Improved interior-point method is adopted to solve the optimization problem. The optimal voltage references are obtained to coordinate AVRs in the low-layer to realize global optimum. We take advantage of IEEE New England 39-bus system to verify the effectiveness of the proposed method.
An Overview on Dynamic Research of Amphibious Vehicles
Authors: Jing Fang Jin , Liu Yan Jun , Liu Guang Kai
Published: September 2014

The amphibious vehicle is a special vehicle, which has performances of land vehicles and ships. Compared to the ships, amphibious vehicle can be sailed fast in the water and driven flexibly on land. Therefore, it has a wide range of applications in the fields of military and civilian. The status of dynamic research of amphibious vehicle is described in this paper. The current situation of dynamic research is presented firstly. The methods of establishing the dynamic model when amphibious vehicles travel linearly and turn were included. Then the modes of propulsion when amphibious vehicles sail in the water are introduced. In the end, the paper summarizes the methods of establishing hydrodynamic model of amphibious vehicles, which are used to analyze the resistance of amphibious vehicles.
A Design of Position Terminal Based on BDS
Authors: Kuang Xing Hong , Yao Zhe Yi , Wang Shi Ming
Published: September 2014

With the development of economy, the global satellite navigation system with its high speed, high efficiency, high precision measurement and positioning a series of significant advantages, favored by various industry data collection and monitoring of personnel resources , the advent of satellite navigation systems to solve a large-scale, rapid and high-precision global positioning problem. Its scope of application has penetrated to the various departments of the national economic and social development in various fields and industries. To be able to monitor the progressive realization of automated data collection and transmission, the urgent need to adopt advanced positioning technology to build real-time location monitoring system PC Based Development Background navigation receiver , an overview of the inter Beidou BD-126 systems and microcontrollers can be serially the basic principle of mouth communication describes the communication protocol Compass BD-126 positioning module and the next crew between the microcontroller to control development in the use of PC positioning system for a detailed description , including the BDS Beidou satellite navigation module and microcontroller serial data communications, microprocessor controlled real-time data display , and so on
Finding Most Vital Node in Satellite Communication Network
Authors: Zhang Xiao Juan , Wang Zu Lin , Zhang Zhi Xia
Published: September 2014

An improved node importance evaluation method is proposed. The importance of nodes are not only determined by its location in the network, but also limited by the contribution of its neighboring nodes. The location of the node is determined by its betweenness. The contribution of the node is impacted by the betweenness and closeness centrality of its neighboring nodes. Experiments show that this proposed method is suitable for satellite communication network applications, and obtains accurate evaluation results.
Research of Power Communication Network System’s Reliability Based on Cloud Model and Fuzzy Petri Nets
Authors: Zhao Hong Zhang , Hao Zhan Jun , Li Fen Fang
Published: September 2014

For the varied circumstances in the evaluation of complex power communication systems, this paper proposes a reliable evaluation method based on normal cloud model and fuzzy Petri net. The simulation results show that the model in this paper can effectively evaluate the system reliability when compared with the other models for the same factor.
Research on Optimization of PV Array on Roof
Authors: Xiao Zhi Gang , Jiang Yao , Xu Chao Qun , Miao Hang
Published: September 2014

Optimization of the PV array on roof has a great influence on designing of the maximum capacity of PV system. This paper analyses the effect of various factors on the maximum output power of PV array system on roof. Model for optimizing the PV array on the roof have been set up for simulation, and the calculation results show that the number of PV subarray is smaller, and the PV system capacity is larger. And then we can get the general design method for maximum photovoltaic system capacity under given area.
Analysis of Chaotic Characteristics of the Strong Nonlinear Vibration Isolation System Based on Harmonic Balance Method
Authors: Mao Wei Min , Zhang Hui , Lou Jing Jun
Published: September 2014

The key of studying the nonlinear system of the stationary period solutions by the HBM is solving a group of higher order multi-degree-of-freedom nonlinear equations. Aiming at this difficulty, this paper can easily get a higher harmonic balance truncation order expression of solution using a powerful symbolic computation software, and avoid the tedious derivation process. And the main subharmonic response range was accurately obtained by the EACM for solving the nonlinear equations. Meanwhile, the chaotic region was estimated through subharmonic cascade regions combined with the bifurcation of the Feigenbaum rule by solving the system. And, numerical results calculated by the Runge-Kutta method were given to verify the results of the period doubling bifurcations and chaotic region obtained by this method. It has been shown that they are in good agreement.
Active Fault Tolerant Control Based on Fault Estimation
Authors: Hu Zheng Gao , Zhao Guo Rong , Zhou Da Wang
Published: September 2014

For the chattering problem in the traditional sliding mode observer-based fault estimation, a second order sliding mode observer based on the Super-twisting algorithm was proposed. In order to avoid the cumbersome process of proving the stability of the Super-twisting algorithm, a Lyapunov function was adopted. An active fault tolerant control law was designed based on the fault estimation. Finally, simulation show the effectiveness of the proposed approach.
Design and Research of Quadcopter Navigator
Authors: Yang Zi Jian , Sun Cong
Published: September 2014

This paper studies the autonomous navigation equipment of Quadcopter. SINS/GPS integrated navigation technology, ultrasonic ranging and barometric altimeter is used in the autonomous navigation system. Navigation board includes measuring height subsystem and measurement position subsystem. The former includes an inertial navigation module and GPS module using the Kalman filter for data fusion, which gets a more accurate and stable location information. Quadcopter height measurement subsystem, using ultrasound and barometers. Complementary filter for effective data fusion, is used to ensure the reliability of height measurement.
Analysis on Angular and Torsional Deformation of Open Front Press
Authors: Zhang Kai , Wang Qiang , Yao Pan Pan , Ding Zhong
Published: September 2014

The angular deformation and torsional deformation are investigated by FEM on open front press with nominal press force of 1600kN. The FEM mold of press is established by processing contact, constraints, and loads. The angular deformation of frame and torsional deformation of slide are analyzed based on the analyses of distribution of equivalent stress and deformation. The influence work force of open front press to angular deformation and torsional deformation are obtained.
Pouring Point Location Method for Concrete Pump Truck
Authors: Xing Qin , Zhang Li Yin , Sun Yong Wei , Sun Tao , Yu Xue Hua
Published: September 2014

A method is presented for determining the pouring point location of concrete pump truck. The method does not change the structure of the concrete pump truck, only need to replace the hydraulic cylinders of booms with the hydraulic cylinders with displacement senor, and the displacement sensors are mounted in the inside of the hydraulic cylinders and do not need any extra protection. The relationship formulas between the contraction and expansion amounts of the hydraulic cylinders and the pouring point location are derived and programmed to input into a data processing unit. The contraction and expansion amounts of the hydraulic cylinders are timely acquired and inputted into the data processing unit, then the pouring point location can be displayed in real-time on the screen of radio controller, and the workers can quickly and accurately locate the pouring point of the concrete pump truck to poured point.
Design and Experiment on Chinese Prickly Ash Automatic Picking Device
Authors: He Zhi Yang , Huang Xiao Peng , Wu Jing Feng , Wan Fang Xin
Published: September 2014

In order to realize automatic picking Chinese prickly ash fruits, We designed a special picking device with a five degrees of freedom mechanical arm based on machine vision. The mechanical structure was designed and the mechanical arm working range was analyzed. The experimental results show that the recognized positioning accuracy is ±10mm, the ratio of the fruit string minimum radius and the recognition radius was 0.95.The picking success rate was 93% when picking range distance was 200-800 mm, and the empty rate caused by false identification goal was 5%. The maximum error of the 3d coordinates which were calculated was 15 mm.
Research on Obstacles Avoidance for UAV SLAM
Authors: Wang Li , Liu Xu , Wang Heng Xin , Wang Xi Bin
Published: September 2014

Abstract: When UAV is implementing the simultaneous localization and mapping (SLAM) problem, the environment where UAV is flying exists unavoidable solid or moving obstacles because of its unknown character, which threatens the flying safety and the completeness of SLAM mission. To conquer this problem, an improved artificial potential field algorithm is proposed to simultaneously accomplish obstacle avoidance of UAV and SLAM mission based on a potential field function containing the distance from UAV to the goal and from UAV to the obstacles and the covariance of features. This algorithm is simulated and tested based on the built UAV plane motion model. The result shows that the proposed algorithm is effective to avoid the obstacles while implementing SLAM for UAV.
Inverse Kinematics Solution and Optimization of 6DOF Handling Robot
Authors: Wu Yan , Cheng Li Hui , Fan Guo Feng , Wang Cai Dong
Published: September 2014

The kinematics equation of the handling robot with six free degrees has multiple sets inverse solution, and the robot system only can choose one optimized solutions to drive the robot to work. The kinematics model of the robot is established by D-H method, and the inverse solution is derived by an algebraic method. The best flexibility principle was introduced to determine a set of optimal solutions from 8 sets of feasible solutions. The correctness of robot inverse solution method is verified through a set of calculation examples.
Comprehensive Compensation System Based on CS-APF and SVC
Authors: Lin Yu Qing , Gong Mao Fa , Ge Hui Ting , Liu Bing Qian , Yang Ning Xia
Published: September 2014

A unified control method of comprehensive compensation system based on CS- APF and SVC is introduced in this paper. SVC is composed of thyristor controlled reactor (TCR) and fixed capacitor (FC). For the CS- APF control, a feedforward control for harmonic compensation of SVC and load is applied. The CS- APF is enabled to optimize the var compensation performance of SVC. Finally, the simulation results show that the system can effectively compensate reactive power and eliminate harmonic currents.
Research of Resistance Furnace Temperature Fuzzy Control Based on LabVIEW
Authors: Liang Fu Gen , Lai Hua , Li Tuo
Published: September 2014

It uses different control algorithms in resistance furnace temperature control temperature will produce different results.The pros and cons of control algorithm affects the precision of temperature control.Temperature is a nonlinear time-varying parameters and it susceptible to interference with a strong randomness.Conventional PID is not easy to achieve the precise control of temperature.We adopt advanced graphical programming software LabVIEW to the resistance furnace temperature control with the fuzzy.We design the fuzzy controller about temperature and make a lot of test independently. Finally,We achieved good effect of temperature control.
Intelligent Controller Design for Nonlinear Piezoelectric Smart Actuators
Authors: Chen Zhen , Liu Yan Mei , Liu Zhao Hui , Liu Xiao Yu , Song Tian Ming
Published: September 2014

Nonlinear characteristic hinder the effective use of piezoelectric smart materials in sensors and actuators. In this paper, the intelligent fuzzy PID controller is designed in the Matlab-Simulink environment. The piezoelectric smart actuator model is built. An adaptive fuzzy PID control scheme was proposed. The proposed control scheme was implemented in Matlab. The results of simulation and experiment indicate that the control method has good control ability.
A Modelling Method for Cross-Organizational Business Process Collaboration Based on Petri Net and Process Algebra
Authors: Mo Qi , Dai Fei , Li Tong
Published: September 2014

In order to resolve the modelling problem of business processes collaboration, especially, the asynchronous communication mechanism problem and the verification problem, combining the respective strengths of Petri Nets and the classical process algebra CCS, a modeling method is proposed in this paper. First of all, modelling the internal view of cross-organization based on Petri Nets, extracting the communication interface and mapping to internal transition to get the public view; Secondly, researching on the asynchronous communication mechanism and modelling the communication process by CCS to get communication behavior view, thus making the verification of collaboration converts to the CCS derivation; Finally, an algorithm is proposed to generate automatically the behaviors possessed by every transition in model view. The modelling method proposed is not only to analyze and verify the structure properties in collaboration, but also to analyze and verify the behavior properties, which brings a huge convenience for further analysis and verification in cross-organizational business process collaboration.
An Energy Based Octree Streamline Algorithm of Mass Point Cloud
Authors: Li Rui
Published: September 2014

Based on the classic octree streamline algorithm, an adaptive octree streamline algorithm was put out based on energy criterion in this paper. By comparing the energy in each grid, the grid was reserved that the energy was less than the set, and the grid was meshed to smaller that the energy was more than the set until the energy of every grid was less than the set. Then the points within the grid were deleted except the central point of the grid, and the streamlined data were obtained. Experiments showed that by this streamlined approach, better streamline point of cloud data could be achieved and retained sufficient image detail.
Analysis on Modern Datacenter Planning in Chinese Traditional State-Owned Enterprises
Authors: Jin Yong , Lu Hai Long
Published: September 2014

Datacenter has evolved to become more business-relevant, dealing with the increasing business data from different systems. Chinese traditional state-owned enterprises, large and small, are in a fast paced competitive market right now, regardless of industry. Determining how to make effective use of the existing huge business data has become a common problem to them. This paper gives typical modern datacenter architecture in a Chinese tobacco industry enterprise, and summarizes the critical factors of the planning of modern datacenter both in management and technical aspects to provide those, especially some similar Chinese traditional state-owned enterprises with some help in the follow-up planning.
CPbot: The Construction of Mobile Botnet Using GCM
Authors: Li Na , Du Yan Hui , Chen Guang Xun
Published: September 2014

In order to detect hacker attacks and take early countermeasures, this paper introduced a novel mobile botnet called CPbot which uses Google Cloud Messaging (GCM) to spread Trojan on Android devices. First, we presented the network model of this GCM based mobile botnet as well as its command and control (C&C) mechanism. Secondly, we illustrated the different roles that this botnet can play. Finally, we setup a simulation model to discuss the topology of this mobile botnet. The MATLAB simulation result shows that CPbot is robust against single point of failures and has good resiliency to shutdown attempts, its command dissemination is highly efficient and the bot App has very low battery consumption. This analysis indicates that mobile botnet is a leading threat to mobile network security; therefore we must deploy defense strategies against this botnet.
Design and Implementation of the Routing Function in the NOX Controller for Software-Defined Networks
Authors: Zhang Xu , Hou Wei Gang , Han Peng Chao , Guo Lei
Published: September 2014

In recent years, Software-Defined Network (SDN) and its OpenFlow-based architecture have been proposed and attracted extensive attentions from academia and industry. SDN is a novel network paradigm that decouples the network control function from the data plane by using OpenFlow technology. SDN realizes the flexible control of the network traffic, and it provides a good platform for the innovation of the applications in the core network. Thus in this paper, after introducing the SDN architecture, we construct the SDN-level network environment and implement the routing function. We deploy one controller, seven OpenFlow switches and two hosts in our SDN environment. The controller and OpenFlow switches support OpenFlow-1.0 protocol. In this network environment, we successfully implement the packet transferring from one host to the other host, and make the corresponding analysis.
Design Research in Motion Cloud Computing Platform Based on a Training Aid System
Authors: Wang Quan Chang , Wu Hong Jiang
Published: September 2014

With cloud computing robust operating platform, build effective sports training aids. In terms of its economic benefits, training effectiveness, data transmission and other processing for scientific and rational exercise training has an important role in promoting. Adverse conditions in the region can effectively improve the uneven development of sports resources and information obstruction. Cloud computing platform sports training aids including architecture, data acquisition, management and service platform, a team of experts in coordination aspects.
Haar Wavelet for the Natural Boundary Integral Equation
Authors: Wang Zhe
Published: September 2014

In this paper, we construct Haar wavelet and apply it to investigate the numerical solution of the natural boundary integral equation of the Laplace equation in the concave angle domains. Haar wavelet has better stability and good explicit expression. Moreover, they are mutual orthogonal. We make full use of their mutual orthogonal to cope with the natural boundary integral equation. Taking advantage of Galerkin-wavelet method in discretizing the natural boundary integral equation. Finally, a numerical example is shown and the feasibility and validity of the method are proved.
Intrusion Detection Model Based on Fuzzy Comprehensive Evaluation
Authors: Zeng Xia Ling , Zhang Lin
Published: September 2014

An intrusion detection model was designed based on the specific immune classification of human immune system. The intrusion detection module was divided into inherent detection module and adaptive detection module. The inherent detection module inherits currently available rules, and the adaptive detection module proposes an anomaly detection algorithm. The algorithm draws on the theory of fuzzy math, integrates fuzzy comprehensive evaluation with analytic hierarchy, and establishes multi-level fuzzy comprehensive detection model by introducing the concept of fuzzy evaluation tree to improve the accuracy of detection. The results show that the model can accurately detect known attacks and can better detect unknown attacks.
Resource Schedule Algorithm Based on Artificial Fish Swarm in Cloud Computing Environment
Authors: Zhao Hong Wei , Tian Li Wei
Published: September 2014

Cloud computing needs to manage a large number of computing resources, while resources scheduling strategy plays a key role in determining the efficiency of cloud computing. evolutionary algorithms (EA) as appropriate tools to optimize multi-objective problems have been applied to optimize Resources Scheduling of cloud computing ,However, studies on improving the convergence ratio and processing time in the most applied algorithms such as Genetic Algorithm (GA), Particle Swarm Optimization (PSO) and Ant Colony Optimization (ACO) in Resources Scheduling domains remain poorly understood. the resource schedule algorithmbased on Artificial Fish Swarm Optimization(AFSA) for Cloud Computing Environment has been designed and implemented after the study on the resource schedule of Cloud Computing. The main idea of improved AFSA is to extend Fish Swarm Optimization to the interacting swarms model by cooperative Models . The improved AFSA probability analysis indicates that searching solution is much more efficient and speeds up the multi-swarm to converge to the global optimum.Finally, the result of the experiment indicates that the scheduling system can improve the efficiency of dispatching resource and the utilization ratio in the Cloud Computing system.
The Design of Quality Traceability System for Agricultural Products Based on Supermap
Authors: Liang Yu En , Fu Xiang
Published: September 2014

The traceability system is an important means of improving the quality and safety of agricultural products. Through a study on domestic and international traceability system, this paper presented a hybrid architecture based on the combination of Client/Server and 3-tire structure. The research work employed geographic information system, database technology, web technology, barcode, anti-counterfeiting code and .Net framework technology, thus a traceability system has been realized in which all the quality information is traceable through all the process, and all the agricultural products circulation routes and areas affected by inputs could be clearly displayed in geographic space.
The Research of Computer Monitoring System
Authors: Li Xin Lei , Chong Lei , Chen Wen Jie , Lu Xin Yuan , Yang Ming Lai
Published: September 2014

In order to ensure traffic safety, strengthen the comprehensive management of signal device and detect the use quality of railway signal equipment. We have done some research. Through analyzing the organization structure and feature of recent computer monitoring system, using the latest information and computer network technology. We propose a new system, whose performance and function are better than now. The result of analysis shows that networking style effect the performance of system, the combine of star and cycle style can make the system take advantage of the network resource better. Proper configuration of protocol can ensure the quality of communication among each layer and internal of each layer.
The Situation Analysis of MANET Based Hierarchical Routing Protocols
Authors: Hou Guo Zhao , Li Yan Bin , Wu Jing
Published: September 2014

At present, hierarchical routing protocols have been the main solution of routing scalability problem in MANET. Based on the deep research on hierarchical routing protocols, hierarchical routing protocols were divided into two parts. The situations of the main routing protocols of each part were reviewed and analyzed. This work will contribute to the further study of hierarchical routing protocols.
Study on Energy Consumption Prediction of Liquor-Making Based on GA-BP Neural Net
Authors: Han Qi Yao , Qian Li Juan , Chu Xian Yu
Published: September 2014

Aimed at the Liquor-making with the characteristic of huge consumption of raw materials and energy,this paper presents a predictive method of Liquor-making energy consumption based on GA-BP Neural Net.Genetic algorithm of mixed coding was used to optimize the structure and initial values,and then BP algorithm adjusted weight and thresholding accurately.Construct the B-P model by using the neural networks toolbox of MATLAB. Optimize calculation based on MATLAB genetic algorithm toolbox using the real data of water consumption,electricity consumptionand steam consumption.The prediction results agrees well with the real data.Finally factual data are used to validate the validity and the rationality of the designed result .Liquor-making energy consumption mainly is water consumption,electricity consumption and steam consumption.Results in some extent can reflect the liquor enterprise energy consumption.Experiment shows that the method is effective for the liquor enterprise energy consumption.prediction.
Comparing Mathematical and Heuristic Rules for Solving Single Machine Scheduling Problem with Release and due Date Constraints
Authors: Zhan Yong , Zhu Hai Tao , Zhong Yu Guang
Published: September 2014

The purpose of this paper is to compare a mixed integer programming (MIP) model, and heuristic rules based on their practical efficiency and the accuracy of results to tackle the minimum lateness single machine scheduling problem with release and due date constraints. Extensive numerical experiments are carried out on randomly generated testing instances in order to evaluate the performance of the MIP model and heuristic rules.