bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Movement Relationship and Multi-Axis Motion Control Strategy for the Big Attack Angle Device of the Low-Speed Wind Tunnel
Authors: Chu Wei Hua , Gai Wen , Gu Zheng Hua
Published: June 2014

For the big angle attack device of 4m×3m low-speed wind tunnel, the attack angle device α change is realizes through the triangle link block organization, realizes angle of attack Alpha uniform speed revolving is a misalignment speed control process. In order to guarantee the blocking in realizes the angle of attack Alpha and in the angle of slide Beta pinpointing process, according to the request angular speed uniform speed rotation, and guaranteed that the model center does not deviate in the rotation process the wind tunnel center, this article, in the angle of attack Alpha organization, the angle of slide Beta organization, Y to the elevating mechanism, Z carry on the comprehensive mathematical analysis to the crosswise translation organization speed and the potential motion relations in the foundation, has conducted the deep research to the multiple spindle linkage speed and the position control method, finally uses the control hypothesized kingbolt, Alpha, Beta, y, the z organization position follow.
Research on Speed and Position Precise Control about Actuating Hydro-Cylinder of Model Support Mechanism in Wind Tunnel
Authors: Liu Nian , Wang Fan , Chu Wei Hua , Li Shu Cheng
Published: June 2014

Electro-hydraulic servo system of stick support mechanism was set up, which was used to simulate the attack angle mechanism in wind tunnel. The compound control strategy with speed feed-forward and position feedback was presented. The speed feed-forward model was deduced. And the reasonable speed and position signals were designed, by which the undisturbed switching of the speed feed-forward control and the position feedback control was realized. The hydromechatronic model of electro-hydraulic servo system of stick support mechanism was established by co-simulation technology with AMESim and Motion. The simulation and experiment results conform to theoretical analysis and show that the position and speed of the cylinder can be controlled simultaneously with the technology of speed and position hybrid control.
Analysis and Design of Automatic Transmission’ Hydraulic System Based on Logic Analysis
Authors: Li Jing Hua , Yu Wen Tao
Published: June 2014

Volkswagen AG4 Automatic transmission ,for example , was detailed analyzed by logical method from the shifting operation, interlocking of combining elements and failure protection. Shifting operation must first meet the shifting demand ,mangy oil line criss-cross in the automatic transmission hydraulic system circuit ,in a particular gear ,some components must to be meet bonding requirements interlock between them ,finally ,vehicle need a failure system to protect the oil line to prevent failures in order to travel to the failure of the automatic transmission electronic control system .By analyzing ,design principles and ideas of automatic transmission shift controlling hydraulic system were derived.
Research on Software Development of Flow Characteristic Measuring System of Motorcycle Electronic Injector
Authors: Yang Tie Zao , Xue Hai Bo , Zhao Hong Jie , Yuan Lei
Published: June 2014

Flow characteristic of motorcycle electronic injector is one of the most important factors to determine the electronic control system design, and directly affects the accuracy of fuel control unit of the motorcycle engine. Combined with the LabVIEW software programming, the experiment on research and development of electronic injector could control the lower computer rapidly and conveniently. As well it could accurately obtain the flow characteristics of small injection pulse width and the normal one of motorcycle electronic injector. It will achieve the goal of high efficiency, fast and accurate measurement of flow characteristic of motorcycle electric injector.
Thermal Error Compensation and Modeling for CNC Boring and Milling Center
Authors: Sun Jun , Xu Yan Ping , Liu Xing
Published: June 2014

The thermal error compensation and modeling is an effective way to improve the machining tool precision. This article took the CNC boring and milling center for example. Firstly, this article made analysis and research on the heat sources by analyzing the structural characteristics of CNC boring and milling center, and then on the basis of the previously measured data of selected critical temperature points, established the thermal error model using a method of multiple linear regression based on least square method. The model parameters were solved by MATLAB software. Finally, thermal error compensation model was tested.
Contour Tracking Control for Direct Drive X-Y Table Based on Equivalent Errors Model
Authors: Wu Zhi Tao , Xu Jian Ying
Published: June 2014

For the contour accuracy of direct drive X-Y servo system is susceptible to changes of the load parameters and nonlinear disturbances including the friction , A quadratic optimal position controller with sliding contour tracking controller based on equivalent errors model is proposed to improve contour tracking performance and the robustness. The position controller is designed by the factorization of quadratic optimization on frequency domain. Based on Equivalent Errors model including the equivalent contour error and tangential error, the contour tracking problem is converted to the stabilization of error dynamic system. Simulation and experimental results show that the effects of nonlinear disturbances are reduced effectively and the designed controller has high contour tracking accuracy and strong robustness.
Mechanical Characteristics Analysis and Design Optimization of the Derrick
Authors: Song Li Yang , Wang Ji Wei , Dong Ping Chuan , Zhuang Tian Lin
Published: June 2014

In this paper, numerical simulation technology was applied to comprehensively analyze and study the mechanical properties of the derrick. The three-dimensional finite elements analysis model of the derrick structure was established, which provided the physical model of the numerical simulation and the optimization of the three-dimensional derrick. The finite element simulation method was applied to analyze and optimize the mechanical and deformation of the three-dimensional derrick structure, so that the theoretical method to study and design the three-dimensional derrick using finite element method was established.
Design and Implementation of Audio Process System Based on DSP
Authors: Chen Chui Xin , Mao Yang Hong
Published: June 2014

The real-time processing for the input analog audio signal, audio processing program is proposed based on DSP. The system use FFT algorithm as the core, first, the input analog audio signal is sampled and A/D conversion using TLV320AIC23, and then use high speed digital signal processor to make real-time processing for the signal. Theoretical and experimental results show that the system can meet the design requirements, it has the advantage of high real-time and simple structure. The system has a good application and reference value for the development and design of data collecting and remote monitoring.
Integrated Power Semiconductor Embedded in the Automobile Skylight System Application and Research
Authors: Ma Shu Qing , Wang Chuan Jun
Published: June 2014

In view of the safety and real-time responsiveness of auto electric window system requirements, using the embedded system design based on PIC18F2480 microcontroller and automatic code generator of intelligent control system for electric sunroof, the system adopts the hall sensor measurement skylight switch's real-time position, permanent magnet motor load torque change rate is chosen as the obstacle detection judgement index, the system is stable and reliable operation.
The Image Process Based on Intelligent Transportation System
Authors: An Wen Qian , Bo Xu Fang , Jia Chao
Published: June 2014

With the rapid development of China's automobile industry, intelligent transportation systems have become an important means of modern traffic management. The paper analyzes the prospects for detection of several sports: frame difference method, optical flow method and the background model, and compared the effects of several methods of detection, using a strong adaptability to disturbance Gaussian mixture background model to detect moving targets. Then the detected motion foreground image OTSU threshold, using morphological methods de-noising and holes filled, get a complete moving target. In this paper, the characteristics of the target shadow and existing methods are analyzed, using a shadow removal method based on color features.
A Content-Oriented Image Metadata Model
Authors: Zhang Chi , Zhang Peng Zhou , Gong Jun Peng
Published: June 2014

This paper presents a content-oriented image metadata model. It aims to provide a standard metadata specification focusing on describing the information relevant to contents and topics of images, and enable different kinds of users to label an image in an effective and unified way. The model is also a key part of rich tag system (RTS), with which we can easily use controlled tags to fill metadata properties. RTS and the image metadata model have been applied to some practical applications, and been demonstrated to be effective and worthy of spreading.
The 3D Finite Element Analysis of Magnetic Controlled Reactor
Authors: Xu Hui , Yin Zhong Dong , Wang Bin
Published: June 2014

Magnetic controllable reactor (MCR) has many advantages in reactive power compensation in high voltage system, but the power loss and temperature rise problems limit its working capacity and impact its advantages. To improve its performance, a more accurate quantitative analysis about the condition of power loss and temperature rise in MCR is needed. This article uses ANSYS software to build a 3-dimensional simulation model about a dry-type MCR. The model analyses its magnetic field distribution, power loss and temperature rise. The silulation results is proved by experiment. This research provides an effective method and a theoretical basis to design the new structure of MCR and considerably reduces the design cycle and the cost.
The Fusion Algorithm of Infrared and Visible Images Based on Computer Vision
Authors: Deng Ming Hui , Kang Jian Xin , Li Yan Jun
Published: June 2014

Directionlet transform is a lattice-based skewed discrete wavelet transform. It has advantages of multi-directional and anisotropy compared with standard two-dimensional wavelet transform, thus, it is better at describing the characteristics of images. For the research focus of different-source image fusion, a novel fusion algorithm based on Directionlet transform was proposed, and the fusion speed was improved efficiently by combing the transform with a lifting scheme. Firstly, between transform direction and alignment direction, two registered source images were decomposed by using lifting Directionlet transform respectively in different times, thus anisotropic sub images were obtained. Then, the low frequency components were combined averagely and the selection principle of high frequency sub images were based on which has stronger anisotropic edge information. Finally, the fused image was obtained by using inverse Directionlet transform. Experimental results show that the fusion effect and speed are both better than standard wavelet transform and other second generation wavelet transform.
Design and Realization of Efficient Verification Platform Based on System Verilog
Authors: Xu Mei Hua , Yu Qin , Guo Ai Ying
Published: June 2014

Adopting the Verification Methodology Manual’s (VMM) hierarchical structure, this paper presents a design of available verification platform based on System Verilog adopted. The platform completed can implement constrained-random test, directed test, and error stimulus test with high efficiency; moreover, gain maximum code reuse. Using Direct Programming Interface (DPI), the verification platform can conveniently link C++ with the model that realized the function of Design Under Test (DUT), and then to test it. At last the paper shows the experiment results to prove the effectiveness and practicality of the platform by verification sample of HOG chip.
Design and Study of Sensor Layout of Magnetic Navigation Smart Car
Authors: Jia Chao , Bo Xu Fang , An Wen Qian , Chen Xiao Fang
Published: June 2014

This article introduces tracking principle of the "Freescale" intelligent vehicle electromagnetic group which is using inductance coil as sensor and the principle of electromagnetism, it analyzes the different number and the layout of inductance coils which affect the tracking of smart car and corresponding solution.
Research and Analysis of a Portable Precision Temperature Sensor
Authors: Yao Hai Qing , Cao Heng , Jiang Fei , Sun Bo
Published: June 2014

Based on the excellent performance of Pt100, a portable low-cost precision temperature sensor has been designed, whose core chips are REF03, AD8603, AD7788 and precision resistors. Constant current source (CCS) for 4-wire Pt100 is constituted by REF03, AD8603 and precision resistors. AD7788 measures the differential signal on Pt100 and suppresses the common mode interference signal. Analysis software running on the micro control unit (MCU) filters the digital code from AD7788, and then calculates the current temperature value according to the resistance-temperature mathematical model of Pt100. Analysis and experimental results show that the temperature measurement accuracy of the sensor can reach ±1°C within the range of 0°C-650°C.
Research of Characteristic Extraction and Matching Algorithm of Ballistic Missile Hyperspectral Data Based on Quantization Coding Method
Authors: Liu Shi Hua , Bi Zeng Jun , Lu Li
Published: June 2014

A characteristic extraction algorithm of the ballistic missile hyperspectral data based on the quantization coding method is studied. The ballistic missile hyperspectral data of imaging spectrometer based on near-space platform is generated by numerical method. The characteristic of the ballistic missile hyperspectral data is extracted and matched using the characteristic extraction algorithm based on the quantization coding method. The simulation result show that the characteristic extraction algorithm is easy to implement and low complexity. The characteristic, which extracted by this algorithm, is enough to represent the speciality of the ballistic missile hyperspectral data. The matching algorithm has high accuracy.
Eddy Current Testing Probe to Improve the Defect Detection Sensitivity of Metal Tube
Authors: Zhang Si Quan , Liu Yu , Xu Hao Jun , Yin Chang
Published: June 2014

The structure of conventional bobbin probe was modified to improve the detection sensitivity of defects in metal tube. Based on the results of finite element simulation, several types of modified probes are fabricated and used to detect artificial defects in tube and the defect signals are acquired and analyzed. The simulation and experimental results verified that the modified eddy current probes are more sensitive to non-axial defects than conventional bobbin probe and can improve the reliability of tube inspection.
An Electrochemical Mercuric Ion Sensor Based on CdS Nanparticle Label
Authors: Fan Hao , Liao Fu Sheng , Wei Guo Bing , Hong Nian
Published: June 2014

In the present study, we describe an electrochemical sensor for Hg2+ detection by using the DNA probe. Two specific sequence for the probes, one has to ensure that the probe A hybridized with probe B modified on CdS nanoparticle to form stable DNA duplexes only in the presence of Hg2+ at a given operating temperature. After dissolving the CdS particles from the electrode, a mercury-film electrode was used for electrochemical detection of these Cd2+ ions which offered sensitive electrochemical signal transduction.The limit of detection of this assay in buffer is 12 nM. The detection was also specific for Hg2+ without being affected by the other metal ions, such as Cd2+,Li+,Ba2+,K+,Ca2+.
An New Electrochemical Sensor for DNA Ligase Detection
Authors: Fan Hao , Wei Guo Bing , Liao Fu Sheng , Hong Nian
Published: June 2014

We herein constructed a sensor that converts T4 DNA ligase-induced conformational transformation of the probe DNA to electrochemical response based on host-guest recognition and nanoparticle label. In the sensor, the hairpin dsDNA terminal-labeled with 4-((4-(dimethylamino)phenyl)azo)benzoic acid (dabcyl) and thiol group was immobilized on Au electrode surface as the probe by Au-S bond, and the CdS nanoparticles surface-modified with β-cyclodextrins (CdS-CD) were employed as electrochemical signal provider and host-guest recognition element. After T4 DNA ligase repairing single-strand breaks in duplex DNA, the dsDNA probe underwent a significant conformational change, which forced dabcyl away from the electrode. As a result, formerly shielded dabcyl became accessible to host-guest recognition between β-cyclodextrin and dabcyl, thus the target repairing event could be sensitively transduced to electrochemical signal provided by CdS-CD.
The Research on Dynamic Torque Test of Overrunning Clutch Based on Load Identification Technology
Authors: Zhu Chun Mei , Zuo Yun Bo , Wu Guo Xin
Published: June 2014

The load identification technology is applied in the overrunning clutch torque test, and a new test method is brought up as to apply the experimental modal analysis theory and the load identification principle into the test study. Through the improved test method, the testing device’s dynamic properties are acquired, the transfer function matrix of the system is exported, the test method of overrunning clutch torque is improved, and the test precision is increased. The rational structural design and reliable data processing make it more convenient for practical application.
Design of Surface Contour Detection System Based on SCM
Authors: Tan Miao Miao , Zhang Zi Yi
Published: June 2014

An automatic surface contour detection system was designed. The detection precision of two sensors and the transmission accuracy of screw were important factors influencing the characteristics of the detection system. A laser displacement sensor and cable-displacement sensor were chosen in this system, which both have high precision and easy work principles. Bluetooth module could realize interaction between SCM and PC reliably and quickly in close range. After programming interaction interface using LabView, the surface contour of measured part could be acquired in real-time.
Onsite Detection Technology and its Application for Electric Cable Partial Discharge
Authors: Man Yu Yan , Zhang Chi , Xi Xiao Guang , Wu Ming Lei , Dong Yan Wei , Sun Zhao , Chen Xiao Xin
Published: June 2014

This paper introduces the electric cable partial discharge detection technology and elaborates pulse waveform characteristics of cable partial discharge, PD signal’s detection theory and basic method of cable PD source localization. On this basis, application examples of substation cable-site detection are given.
Application of Beidou Satellite Communication Technology in the Landslide Remote Monitoring and Early Warning System
Authors: Sun Guang Lin , Tao Zhi Gang , Zhang Bin , Hou Ding Gui , Li Hai Peng
Published: June 2014

Real-time monitoring and early warning of landslide disaster can be performed by landslide remote monitoring and early warning system, and by use this system landslide disaster losses can also be reduced effectively. In order to improve the monitoring signal transmission, such as the un-interruption and anti-disturbance, Beidou satellite communication technology has been applied to overcome the shortcomings of poor communication network signal and the existence of blind area. The research result shows that the Beidou satellite communication technology can effectively ensure the continuity of signal transmission and eliminating the communication network’s blind area. Hence, Beidou satellite communication technology is an advisable measure to ensure the normal work of landslide remote monitoring and early warning system.
Extremum Median Filter Method Used in Data Analysis of Spray Heat Exchange Temperature Test
Authors: Dong Zhi Feng , Cheng Xu Wen , Han Yu Dong , Tang Ji Tuo , Dan Gong
Published: June 2014

Researching the gas’s temperature change trend was important for the system design of spray tower in which the liquid and the gas was mixed and the heat was exchanged. In temperature measurement, it must be concerned that the test data contain impulse noise due to the internal complex environment of spray tower. In order to get the real and accurate data and to acquire temperature change characteristics, the thermocouple sensors were used to do multipoint temperature measurement in different experimental conditions. The method of extremum median filter was used to remove impulse noise of signal. The simulation was made with MATLAB. The analysis result shows that the method can remove impulse noise of temperature signal and get accurate temperature data.
Narrowband Bandpass Microstrip Filter Design
Authors: Li Yang
Published: June 2014

This paper analyzes the basic theory of the microstrip narrow-band filter design and accomplishes the design of narrow band-pass filter whose center frequency is on L-band with the help of the Agilent ADS simulation software. The filter adopts Chebyshev’s prototype structure and consists of coupled microstrip line. Its fluctuation is less than 0.5dB and attenuation is less than 1.5dB between 1.9GHZ and 2.1GHZ .Its port Reflection coefficient less than-15dB and attenuation is greater than 20dB at 1.72GHZ and 2.3GHZ. Layout simulation meets the requirement of filter design.
A New-Type Data Transmission Scheme and Key Technology of Electric Energy Data Acquisition System
Authors: Dong Li Jun , Zhu En Guo , Zhang Qian , Liu Xuan , Liu Yan
Published: June 2014

Electric energy data acquisition system is the necessary requirement to construct "Marketing" infrastructure and smart grid, change the development mode of the company and grid. To solve the problems of the 230MHz wireless private network of the electric energy data acquisition system, such as low communication rate, fewer access points, low acquisition success rate and poor real-time performance, a new-type data transmission scheme of electric energy data acquisition system is proposed. The key technologies, such as carrier aggregation, software radio, multi-antenna, networking, OFDM, safeguard and other technologies, are discussed. The new-type communication technology based on SGWM in the electric energy data acquisition system is elaborated. The experimental results show that the field application effect of the new-type 230MHz communication key technology based on SGWM in the electric energy data acquisition system is improve the interactivity, real-time instantaneity, reliability of smart grid.. Thus it provides technical support for the popularization of the information bidirectional interaction and construction of smart grid.
Spectrum Analysis of Noise in Low Head Francis Turbine
Authors: Lu Lei , Zhang Li Da , Liu Xiao Bing
Published: June 2014

Hydroelectric generating sets of a hydropower station have emerged a serious problem of abnormal noise in the Chinese southwest. To analyse the low-frequency characteristic of noise, a noise test was done in the power station site, and the noise of different working conditions was recorded. After the spectral analysis, the average dominant frequency and average loudness of noise were got, it is the basis of subsequent analysis and research. This article has some reference value in the noise monitoring and diagnosis.
A Buffer Pool Optimization Algorithm Based on Max-Heap
Authors: Xiong Xiao Mei
Published: June 2014

To reduce the number of requests to the database connection, this paper designed the max-heap in buffer pool. We use the buffer pool maintenance algorithm to manage SQL data query request when database access intensive. When we update the max-heap, the structure of the buffer pool will be updated and the heap will be balance through the heap of recursive sequence, it got good performance in database access request. Experiment results show that this algorithm can improve the operation efficiency of system effectively.
Research and Implementation of Multidimensional Customer Behavior Segmentation Model Based on Bayes and Fisher
Authors: Wang Guang Hui , Liu Zhong Yan , Zhang Shao Bing
Published: June 2014

an improved algorithm of Bayesian classifier combined with Fisher Linear Discriminant Analysis is proposed. This algorithm is the key to search the projection space of maximum separation. The original samples are projected to maximum separation space and new samples are obtained. These new samples are classifed by Bayes classifier. Experimental results show that improved Bayesian classifier has higher accuracy of classification and better performance of classification in the given data collection.
The Random Walk Model for Tibetan Network Public Opinion Dissemination Behavior
Authors: Deng Kai Ying , Deng Jing Wei , Li Ying Xing , Li Su Duo
Published: June 2014

There is a great deal of history involving the research of Tibetan network public opinion dissemination behavior. In order to monitor Tibetan web information and real-time construction and supplementary of Tibetan sensitive information, we investigate the random walk dissemination model to analyze the overall information of Tibetan Web. According to Monte Carlo’s random walk models, we simulate the Brownian motion in the different dimensional space and discuss some basic ideas and applications.
Application of ADE-FDTD Method in Lossy Lorentz Media
Authors: Nie Qing Chao , Chen Bing Kang
Published: June 2014

A finite-difference time-domain method based on the auxiliary differential equation (ADE) technique is used to obtain the formulation of 2-D TM wave propagation in lossy Lorentz media. In the paper, the reflected coefficients calculated by ADE-FDTD method and the exact theoretical result are better agreement.
Ensemble Learning in Data Mining of Fetal Cardiotocograms
Authors: Chen Xiao Yu , Liu Bo , Xia Xin
Published: June 2014

ReliefF feature selection and LogitBoost ensemble learning method are employed in the data mining procedure of 2126 fetal cardiotocograms (CTGs). Based on 10 critical features selected by ReliefF and the full 21 features, LogitBoost algorithm almost outperforms the other three ensemble learning methods of Stacking, Bagging and AdaBoostM1 in ACC (%) and AUC in classification, and the ACC (%) and AUC of LogitBoost algorithm are achieved to 94.45% and 0.977 based on the critical features from ReliefF.
Software Design of Automotive Parking Heater Remoter and Receiver
Authors: Ge Yue Tao , Liu Xiao Ming , Yin Xiao Tong
Published: June 2014

In order to achieve 600 meters radio frequency communication and 2-10 meters serial cable communication between remote controller and parking heater, the paper designed the software of remote controller and vehicle receivers. Using this software process, it can achieve 600 meters wireless radio frequency communication between remoter and receiver, and wired communication 2-10 meters between receiver and ECU, to achieve good control effect.
Output Stable Control Design for a Class of Nonlinear Systems Based on Adaptive Fuzzy Logic Systems
Authors: Gao Zi Lin , Pan Yong , Xiong Jiang , Chen Jin Peng
Published: June 2014

The adaptive fuzzy logic systems are constructed in this paper by utilizing the data information sampled from the inputs and outputs of unknown functions in the nonlinear systems controlled, and then output stable controller is synthesized for a class of uncertain nonlinear systems based on the universal approximation property of adaptive fuzzy logic systems. Finally, the simulation shows the validity of the method in this paper.
The Stabilization of Switched Systems with Input Saturation
Authors: Jing Li , Liu Li
Published: June 2014

The paper analyzed the stability of switched systems with input saturation. First it considered a special case: the switched system with only one subsystem. Using a new method to dispose saturation in the system, the paper gets the sufficient condition of stability of the system. Based on the result, the controller of the system is designed. Then common switched systems were studied. By convex combination method we obtain the sufficient conditon of stability of switched systems and propose a method to estimate the attration domain of the systems.
The Design of Smart Home Monitoring System Based on ZigBee and Voice Recognition Technology
Authors: Huang Jia , Yang Ye Chen , Zhai Xiao Dong , Yang Chen
Published: June 2014

This paper has designed a smart-home environment monitoring system. The System is based on ZigBee technology establishing wireless sensor network , using the SCM of CC2530 RF as the solutions to the system of the ZigBee technology, achieving parameter detection of multi-environment, and controlling the receive and dispatch of signals . Meanwhile, the system uses LD3320 voice chip, take the use of (non-specific) voice recognition technology to accept and control signal, realizing voice control for home appliances. And the distribution of the system is flexible and can change any monitoring points and monitor objects. It has good scalability and stability and can be used in various occasions for environmental monitoring.
Research and Design of Distributed Self-Adaptive Highway Monitoring System Based on WSN
Authors: Gu Mu Song , Yan Yu Song , Wei Juan , Wang Hai Ying
Published: June 2014

Wireless Sensor Network is a a brand new technology of information acquisition and processing. Compared with the various technologies applied in the current transportation monitoring system, Wireless Sensor Network has the advantages of self-organizing and distribution. In this thesis we have proposed the design of distributed self-organizing highway monitoring system based on Wireless Sensor Network, and we have constructed Safety Distance Monitoring Model between vehicles by combining with concrete datas such as road visibility, traffic flow,etc. The model can exploit the advantage of WSN to calculate approriate safe driving distance between vehicles by referring to road visibility, traffic flow and others at any time. When the distance between driving cars is smaller than the safety distance, the drivers would be warned by menas of car radio, car GPS, RFID and other radio device to avoid happening of traffic accidents.
A Study on the Supporting Plate of the Steaming Bucket
Authors: Chen Lei , Sun Ze Gang , Liu Yu Cong , Yang Chang Niu , Huang Wen Quan
Published: June 2014

Steaming bucket apparatus were used widely in liquor distillation by solid fermentation in liquor production. The multihole supporting plate of steaming bucket apparatus used widely at present has the disadvantages such as channeling, dead band and leakage. It is necessary to study the model selection, opening ratio and the distribution parameters of the hole of supporting plate by scientific analysis and rational design, which has great guiding significance for the design of subsequent prototype.
Trenchless Rig Remote Monitoring System Software Development Based on VB
Authors: Han Lei , Wu Chuan , Zhang Peng , Bai Jiang Hao
Published: June 2014

To guarantee the normal construction of trenchless rigs and increase enterprises’ managerial effectiveness of trenchless rigs all over the country, considering the construction characteristics of this kind of machine, the paper develops a upper-computer software of trenchless rig remote monitoring device based on VB. Through this software, it is convenient for enterprises to realize the real-time monitoring of trenchless rig information such as its application factors, geographical locations ,operating time and primitive parameters. Field experiment was conducted when software design for testability was finished, and the experimental data shows that this software can meet projects’ application requirements.Key words: VB; trenchless rig; monitoring; software
Antiwindup Controller Design for Phase-Lead-Lag Controller
Authors: Fu Xing Yu , Zhang Guang Bi , Zhang Mao Rui
Published: June 2014

The original idea of antiwindup controller design of equivalent separated-integartor controller structure for phase-lead-lag controller is presented in the paper. The idea is competitive to antiwindup for PID controller which is frequently applied in industry. Thus, mature approach of antiwindup for PID controller can be adopted in solving windup problems in phase-lead-lag controller. From equivalent model and especially from performed simulations, it is seen that the presented solution eliminate the windup.
Design of a Leveling Device
Authors: Lv Qiong Ying , Mei Yu Shi , Sun Yu , Liu Kun
Published: June 2014

Spiral or wedge-type leveling mechanism used by traditional theodolite, leveling between the cradle and the institutions, agencies and land leveling substrates are often unable to lock, and therefore can not afford to reverse the drive torque, and poor stability of the leveling means. Leveling device of this article, when the tilt table, the table with the solid sphere slider associated spherical rotary swing for the next slider to adjust the three leveling device to achieve leveling table. After leveling the table, under the action of the locking mechanism, the locking slide around the sphere spherical under lock slider rotation, lock nut and locking slider to achieve the sphere spherical self-centering locking to ensure leveling stability state.
The Design of Bending Force Shape Control System Based on Fuzzy Adaptive Control
Authors: Ma Jun Shuang
Published: June 2014

This paper presents a fuzzy adaptive shape control system, which overcomes the shortcoming of simple PID controller and simple fuzzy controller. The PID parameters can be adjusted on-line in this system. The simulation result shows that the control system can improve the control performance and control quality of steel shape control.
Numerical Study of Effect of Injection Parameters on Combustion and Emission Performance of a Direct Injection Diesel-Natural Gas Engine
Authors: Guo Gen Miao , He Zhi Xia , Sun Xiu Xiu , Zhang Zhou Rong , Tao Xi Cheng
Published: June 2014

By using AVL FIRE code, three-dimensional numerical simulations of the diesel-natural gas injection characteristics in a direct injection diesel-natural gas engine were conducted. The effects of the start of injection (SOI) of the pilot diesel and natural gas injection velocity on combustion and emission performance were investigated. The results showed that diesel-natural gas injection characteristics have an important influence on the subsequent combustion and emission. NO and Soot emission performance is better when the SOI was 36°BTDC (Before Top Dead Center), and a larger natural gas injection velocity usually leads to a lower engine economical efficiency.
Simulation and Test for Turbine Air Powered Engine
Authors: Liu Jing , Han Jing Tao , Deng Jin Chun
Published: June 2014

Turbine Air Powered Engine (TAPE) is a new type engine which has the character of zero emission, no pollution. Mathematical models of TAPE were established by the method of exergy analysis, the overall exergy and the exergy loss after reduced pressure with throttling were simulated in this paper. The results show that the maximum exergy loss of system is 60% during the process of reduced pressure with throttling, so the type of throttling decompression is not suitable for the system of TAPE which has bigger pressure reducing ratio. The results of bench test indicate that output power increases with the increase of inlet pressure within the scope of less pressure, and the regulation is similar to the simulating result. In the hybrid system of pneumatic internal-combustion engine, the measure which the air powered system is used in low-speed stage and the internal combustion engine powered system is adopted in high-speed stage can effectively solve the problem which the fuel consumption of the internal combustion engine is too bigger at low speed.
Micro-Grid System Based on Compressed Air Energy Storage
Authors: Liu Yu Jie , Li Wei Hua , Luo Xiang Hua , Su Cheng , Ding Shi Xue , Wu Gui Zhong , Zhang Dong Ping
Published: June 2014

With the development of the power system, wind energy was applied to micro-grid system as a distributed generation. The output of the wind farms has the characteristic of intermittence and fluctuation, which would influent the stability of micro-grid system and can be solved effectively by compressed air energy storage system, a new energy storage technology. Because of the advantage of fast response, high economic performance and small environmental impacts, it has an extensive application prospect. This paper builds a micro-grid system with wind power generator, and control the output of micro-grid system by using compressed air energy storage system. The simulation result verifies that the compressed-air energy storage system can effectively suppress power fluctuation and improving the stability of the micro-grid system.
Rotor Current Analysis on Transient Performance of Low Voltage Ride-Through of Doubly Fed Induction Generator
Authors: Zhang Wen Juan , Han Zhi Xia
Published: June 2014

From a theoretical perspective, this paper develops a systematic approach to analyze the transient characteristics of the low voltage ride through in three-phase short-circuit rotor current. Firstly, the steady state current mathematical model of the system is described. And then, the short-circuit rotor current dynamic characteristic during the low voltage fault is analyzed, the resistance value and switching strategy of crowbar are discussed. Finally, the simulation results and the theoretical analysis manifest that appropriate crowbar reactance value and switching time can improve LVRT control characteristic and grid stability.
Risk Age of Passenger Ships Based on Port State Control Data
Authors: Sun Mo Lin , Zheng Zhong Yi
Published: June 2014

In order to understand the relationship between passenger ship age and risk condition of the passenger ship deeper, the concept of ship risk age is proposed based on the passenger ships’ data in port state control referring to the concept of physiological age from the physiological point of view. The risk evaluation index system of passenger ships is built and low risk passenger ships’ information are obtained based on the Paris-MOU risk evaluation model by cluster analysis of K-means under the general classification principle’s guidance. Risk age of passenger ships is estimated by regression analysis of the ship actual age and risk evaluation indexes through ε-SVR regression model, which provides a thought and basis for the management of old ships.
Applying Quality Function Deployment Techniques in Lead Production Project Selection and Assignment
Authors: Chen Chee Cheng , Zhang Qing
Published: June 2014

In the past few decades’ lean production has become widely adopted in many industries, however there is still great opportunity to combine lean production with other methods or tools to reduce waste and improve production performance. QFD (Quality Function Deployment, QFD) is a combination of quality control and quality assurance methods that transform the customer's requirements into the technical aspects of response to the customer. "Lean" is derived from the Toyota Production System; Lean principles to eliminate waste. Many companies already use lean manufacturing and QFD methods, but can still not reach zero waste or fully reflect the needs of customers into new product designs. This study is based on the lean production concept to create a QFD model to reduce waste in the manufacturing process and reflect customer feedback. This article presents a literature review and then defines the QFD and lean manufacturing concepts and relationships. We use the Pareto chart to select the waste materials priority and build some technical solutions into the HOQ. Finally, this article provides lean concepts and QFD links and revises the standard manufacturing operating procedures (standard operation procedure, SOP). Management will be based on the newly revised SOP to improve waste management and further improve quality management.
Research on Competitive Strategy - Case of a Taiwan Technology Material Manufacture Enterprise
Authors: Saito Riga , Wang Ying Jun , Tsai Sang Bing
Published: June 2014

For an enterprise to survive in a rapid business environment, the enterprise is required to develop core competencies through the understanding of its competitive advantage. In this study, Porter’s five forces were used as factors to evaluate competiveness while importance-performance analysis (IPA) was used as an assessment framework to evaluate the production competitiveness. An manufacturing enterprise is examined to identify its advantages and disadvantages to facilitate an appropriate competitive strategy.
Research on Remanufacturing of Gear Reducer
Authors: Li Zheng Feng , Du Chun Kuan , Huang Su Qin
Published: June 2014

Gear reducer is widely used in various fields of industry, as a kind of sustainable development technology, the remanufacturing of gear reducer is significant and has great potential. This paper introduces the technological process of remanufacturing of gear reducer，the discussion major focus on the key parts, such as gear, shaft, and box. their failure forms are analyzed and corresponding remanufacturing process are presented. The remanufacturing technology extends the life cycle of gear reducer, is conducive to energy conservation and emissions reduction.
Analysis of Engineering Supervision Process Base on Asymmetric Information
Authors: Zha Fei , Wei Teng Zhan
Published: June 2014

Engineering supervision system in China has already implemented more than 20 years. As China's market economic system continuously has been improving, the current supervision system shows some problems and drawbacks. The market economy environment are not coordinated, which is unable to meet the practical requirement of engineering construction project management. Combined with the field of construction and supervision of the industry, systems analysis supervisor participate in bidding and supervision of the implementation of these two processes engineering supervision. Theoretical analysis of the use of information economics, demonstrate there is a serious information asymmetry among the owners of units, supervision units and the construction side. It is possible to perform by eliminating mandatory supervision, to improve the quality of supervision of staff capacity, to establish a credit rating system and network information platform and other measures to promote the project supervision stable operation.
Study on the Public Logistics Nodes of Industry Cluster District and Location
Authors: Li Tian Tian , Qin Lu , Ge Xi Jun
Published: June 2014

The public logistics node was named. Through summarizing the logistics node on improving the current status of the industrial concentration, confirming the feasibility of building public logistics nodes and the huge advantages: reducing the empty driving, increasing the using of the warehouse, saving soil resources, enhancing the degree of enterprise specialization, promoting the enterprise's improvement. And using multiobjective programming gave the public logistics node location model.
The IOT and Smart Logistics Model as the Center of Agricultural Products IOT Port
Authors: Chen Yong
Published: June 2014

Internet of Things(IOT) port is a multi-format business park as the core of IOT applicatting in value-added agricultural products, its philosophy is interactive, collaborative and visualization, using mature technology , IOT and IT, building a supply chain management system platform, connectting the each participant of upstream and downstream supply chain, including core businesses, supporting small and medium enterprises, banks, logistics providers, technology support organizations, training institutions,etc. Achieving information interaction and business collaboration. Providing comprehensive one-stop supply chain services of overall optimization-based supply chain logistics, traceability of agricultural products, financing, settlement and value-added services, through accumulating and integrating the relevant parties arising from operating activities business flow, logistics, capital flow, information flow. In the implementation process, IOT port existences some issues, such asnetwork security, the standardization of supply chain information flow and management platform, but these can been solved by creatting a suitable space for development through government,gradually extendding the pilot to take the first way, promottng the development of uniform standards of IOT port.
Improvement Research of Path Selection Algorithm in Traffic Guidance System
Authors: Li Ling Lin , Tang Jin Peng
Published: June 2014

Analyzed of GPSR routing algorithms in networks, and applied it to path selection algorithm of traffic guidance system. Then improved it combined with the road congestion information, introduce congestion distance factor, saving travel time.
The Design and Realization of Remote Data Synchronization Based on Configuration Software
Authors: Guo Lei
Published: June 2014

Through practical application case, the functions for achieving remote network data synchronization transmission based on configuration software are introduced, and network application layer protocols which are applicable to general industrial Ethernet process control are designed. After running and commissioning, all functions can be achieved successfully, and real-time and fault tolerance of application-layer protocols can be guaranteed.
The Design of the Online Collaborative Music Production System
Authors: Liu Bing Hao , Li Ying , Fu Wen Long
Published: June 2014

This paper designed an online collaborative music production system using CSCW theories,provides an available platform for multi-user online collaborative music project production.The system uses a C/S model.This paper made ​​a detailed presentation on workflow, system configuration, module design and measured the system.
Mining Association Rules Algorithm and its Application Based on Key Transactions
Authors: Wang Zi Xian , Ma Guo Fu , Ma Sheng Li , Li Shuang Yin , Cheng Yu Si
Published: June 2014

Some of the classic correlation algorithm (such as Apriori algorithm, fp-growth algorithm), and some other improved algorithms, mostly for the general case. In this paper, the prison system in the case, by the definition of key items, key issues, and give a targeted mining method. We get a lot of actual data in a prison in Hebei Province and analyze the date according our method, the results of the analysis applied to practical guidance. Experiments show that the model for predicting the efficiency of security incidents has reached more than 85% effective in reducing the occurrence of security incidents.
Heat Transfer Characteristics Analysis of Intermediate Rotating Ring in Mechanical Seal Based on COMSOL
Authors: Liu Zhei Wei , Dong Lin , Li Ke
Published: June 2014

Based on COMSOL Multiphysics, the temperature field of static ring, intermediate ring and rotating ring were studied. Effect of intermediate ring rotating speed and thermal conductivity on temperature were obtained. The Results of heat transfer characteristics of the non-contact intermediate rotating ring mechanical seal provide the theoretical basis for the design and application of the new mechanical seal.
Multi-User Interactions Using Active Rule
Authors: Dong Biao
Published: June 2014

The main issue in designing the framework for multi-user interaction systems is to provide efficient collaboration mechanisms. The paper discussed characteristics of multi-user interactions, and proposed a hierarchical model for supporting multi-user collaboration. The model included four categories of attributes that defined the form of multi-user interaction - users, interactive task, interactive form and interactive effect. An active rule framework was constructed, including the concepts of the callback event, interactive event and composite event. This paper also described how to map a multi-user interaction model into events and rules.