bluuebunny/crossref_metadata_2025 huggingface dataset:
A High Efficiency Multi-Band Antenna for Mobile Communication Devices
Authors: Jiao Sheng Cai , Sun Wen Zhou
Published: September 2013

In this paper, we present a compact high-efficiency multi-band micro strip antenna for the mobile devices. At the same time, because most of antennas are located near the ground planar, the proposed antenna is designed with a ground planar. The antenna occupies a small size of 100*60mm2 and operates in CDMA(824-894MHz),GSM(880-960MHz), DCS(1710-1880),PCS(1850-1990),UMTS(1920-2170) and 3G band. By using a long slot, two trapezoid slots and a short slot, a triple resonance around 900MHz and another wideband resonance around 2100MHz can be created, respectively. Details of the antenna design are described , and its radiation performances results are presented and discussed. Keywords-Multi-band antenna;; mobile communication devices; hige-efficency
A Novel Handover Algorithm Based on Location Information for LTE High-Speed Rail Networks
Authors: Zhang Rui , Wu Mu Qing , Zhang Yi Fan
Published: September 2013

This paper proposes a new handover (HO) Algorithm for LTE high-speed rail networks aiming to reduce time latency during handover and enhance the smoothness of handover in high-speed railway networks. In railway networks, travel environment including the trace and location information of the train and position of the target eNodeB can be precognitive, which can be utilized to receive a fast handover scheme to simplify the system design and increase handover performance. The simulation results show that the proposed scheme has better performance than typical A3 event based handover algorithm in high-speed rail environment.
Discuss the Number of Sub-Channels and Quantization Bits in a DCO-OFDM VLC System
Authors: Chen Kun , Chen Geng , Zhang Ming Lun , Zhang Yan Gan
Published: September 2013

This paper introduces an integrated simulation system for visible light communications (VLC) which is based on DC-biased optical OFDM (DCO-OFDM). By simulating a VLC system with an equalizer, we optimize the parameters for a real-time system: the number of sub-channels and quantization bits. It could be concluded that a 128 sub-channels system is suitable when the signal bandwidth exceeds 100MHz and 6 quantization bits should be enough for a VLC system, which would be useful when it comes to a hardware only system.
Towards a Computer-Based Information Retrieval Systems Process
Authors: Subasic Anthony , Perrin Estelle , Danesi Frederic
Published: September 2013

This paper presents the first definition of a methodology to analyze, design and evaluate information retrieval systems. We do not address the search engines themselves, but we discuss the computer human interaction implied. We show the need to introduce the user point-of-view in each interaction, and demonstrate the usage of trade oriented knowledge. We argue that, despite the inherent quality of the search engine, the human interface should be considered as the critical part of any system. Information Search Processes must evolve to include a computer-human interaction approach.
The Design and Implementation of New Rural Information Service Center for Three Gorges Reservoir Area Based on CTI
Authors: Lei Guo Ping , Dai Min Lu , Tan Ze Fu
Published: September 2013

This paper uses the CTI technology and voice card to establish a new rural information service center based on the fact that the rural informatization construction is relatively backward in Three Gorges Reservoir area. The information service center adopts a unique design, which combines the computer technology, automation technology and communication technology and realizes the automation of the information service center. As a result, we can use the system conveniently and efficiently as long as we are in the place can make a call. The application results show that the system runs stably and reliably and has certain practicability and popularization value.
A Novel Middleware-Based Model for Redundant Reader Elimination Using Genetic Algorithm
Authors: Lu Shi Lei , Yu Shun Zheng
Published: September 2013

Eliminating redundant readers is important for the performance improvement of the radio frequency identification (RFID) networks. This paper proposes an efficient approach for redundant reader elimination. A middleware-based model, which is formulated as a multi-dimensional optimization problem, is developed to evaluate the network performance. The real-coded genetic algorithm (RGA) is employed to search the optimal adjustable parameters. The simulation results reveal that the proposed approach outperforms other algorithms in terms of optimization precision and computing time.
Application of Kalman Filter Technology to Integrated INS/DR Navigation System for Land Vehicle
Authors: Chen Ying , Zhang Xia Jiang , Xue Yuan Yuan , Kang Zhen , Shang Ting
Published: September 2013

Strap-down INS is composed of fiber gyroscope. Position error propagation equation and position update algorithm of dead reckoning is deduced in this paper. The Kalman filter is proposed for compensation error of integrated system. The difference of velocity between INS and DR is used as the input of Kalman filter, attitude error, velocity error, position error and scale factor error are to be estimated which compensate and rectify the errors of integrated navigation system. By carrying out experiment upon vehicular navigation system in use of Kalman filter, the errors of integrated navigation system are estimated accurately. Experiment result show that the method not only can effectively improve precision of the system, but also is simple and convenient, so it is more suitable for practical application.
User Range Error Analysis of Multiple Satellite Navigation System
Authors: Wang Dong Hui , Liu Wen Xiang
Published: September 2013

User range error (URE) is widely used to measure the effects of satellite orbit error and clock error on user positioning. A detailed calculation method of URE was brought forward including the partitions of the ground coverage of the MEO satellites and the calculation methods of the projection parameters of URE. The different URE performance of multiple Satellite navigation system was analyzed. Simulation results show that the radial direction projection parameters are basically the same, but the horizontal direction projection parameters are different among GPS, Galileo and BDS. The higher the satellite orbit, the smaller the horizontal direction projection parameters.
Near Space Pseudolite Navigation System Design and High-Performance Filtering Algorithm
Authors: Gao She Sheng , Wei Wen Hui , Xue Li
Published: September 2013

This paper analyzes the defects of satellite navigation systems that exist in positioning and precision-guided weapons and pointes out the advantages and military needs of pseudolite. The autonomous navigation nonlinear mathematical model of Near Space Pseudolite SINS/CNS/SAR autonomous navigation system is established. Based on the merits of fading filter, robust adaptive filtering and particle filter, we propose a fading adaptive Unscented Particle Filtering algorithm. The proposed filtering algorithm is applied to SINS/CNS/SAR autonomous navigation system and conducted simulation calculation with the Unscented Kalman filter and particle filter comparison. The results show that the new algorithm that is proposed meets the needs of pseudolite autonomous navigation, and the navigation accuracy is significantly higher than the Unscented Kalman filter and particle filter algorithm.
H.264-Based Video Watermarking Algorithm
Authors: Lin Guo Qian , Li Ning , Ma Li Ni
Published: September 2013

Based on the research of image watermarking embedding, we extend our research to deal with the video watermarking. The H.264 standard is used widely and the latest video coding standard at the present. Make good use of the advantages of H.264, such as high compression rate etc., we proposed a low complexity video watermarking algorithm based on H.264. In the proposed algorithm, to weaken the attack of noise, we deal the watermarking image with DWT. And then, we use the Arnold technology to improve the security of watermarking detection. Because of not any modification is done to the data stream of video, only for the division of macro block model, so the quality of video is without of any influence by the algorithm we proposed. By the use of the algorithm, which not only is beneficial to the realization in real time, but also improve the robustness of watermarking, we can easily extract the watermarking image. The experimental results show that the suggested image watermarking algorithm and video watermarking algorithm have good invisibility and strong robustness, and the certain reference value to the actual application.
Realization of Video Question Answering System Based on Flash under RIA
Authors: Jiao Guie
Published: September 2013

Video question answering system is designed and developed based on Flash platform technology,belongs of B / S (Browser / Server) structure,used to meet the needs of specific groupss teaching and studying.This paper describes the core code of the real-time Q&A video module about video creating and video playback,also describes the relevant realization technology and other functional modules of the system.
Personalized Web Service Recommendation Based on User Interest
Authors: Yang Hai
Published: September 2013

In this paper the web service recommendation is introduced firstly. Then an improved personalized web service recommendation algorithm based on user interest is proposed. Furthermore, the computing methods of user evaluation similarity and reliability degree of web service recommendation are described too. Finally, The results of simulation experiments show that the improved personalized web service recommendation algorithm based on user interest has much higher capacity of recommendation than the recommendation based on user content and is suitable for web service recommendation.
A Study of Dynamic Scene Automatic Generation System for Micro-Film Studio
Authors: Chen Mo Jiao , Zhang Bin , Cao San Xing
Published: September 2013

While the international micro film studio technology is in the ascendant, China's micro movie studio is still a blank. But today, it's in the rapid development, with that comes rising demand of micro film studio technology. This paper proposes a Dynamic Scene Automatic Generation System, which means an automatically building system can integrate real property and the computer virtual reality environment in shooting, even convert the scripting language to play in the micro film studio. It can enhance the artistic effect of environment and plot, enhance the authenticity of the performance and effectively reduce the cost with strong proactive, creativity and usability.
Application of Intelligent Components Base on Hierarchical Architecture to Baggage Handling System
Authors: Lv Xiao Xiao , Yang Chun Hua
Published: September 2013

For satisfy market competition, airport baggage handling system needs to concern about robust, easy maintenance and reconfigure. This paper discusses a hierarchical architecture system with completed interface. Base on this structure, develop different intelligent components. The basic conveyor model is introduced also. After applied to real project, this approach shortens software development cycle and reduces the risk of commission.
Surgical Robot Design Development
Authors: Farah Edris , Liu Shao Gang
Published: September 2013

Since 1985 when the first use of robot in surgery fields, the interest and the amount of research in surgical robots have been increase significantly. Various surgical robot systems have been developed, and many design models have been proposed. This paper discusses the development of surgical robot design and touches some design and control characteristics which are useful for the research in the field. The paper also provides the recent trends in the field and discusses some commercial surgical robots.
Generating Various Inverse Time over Current Numerical Relays Using Microcontroller for Power System Protection
Authors: Barhate Vinay
Published: September 2013

Power System fault is defined as undesirable condition that occurs in the power system. These undesirable conditions such as short circuit, current leakage, ground short, over current and over voltage. This paper is an attempt to design and fabricate inverse time over current protection relay using basic Microcontroller. The 8051 Microcontroller will cause the circuit breaker to trip when the current from load current reaches the setting value in the micro controller and generates a time delay for tripping as per the type of Characteristics for which it is designed, may it be IDMT or normal inverse, very inverse or extremely inverse over current Relay. First the load current need to measure in order to monitor it using current sensor and when such condition arise, it will isolate in the shortest time possible without harming the any other electrical devices. The current sensor processes the signal using current to voltage converter, precision rectifier, Analog to Digital convertor, peripheral interfacing devices with Microcontroller chip takes the suitable action of generating trip signal at appropriate time for expected pick up value of current. It is tested with laboratory setup and found working satisfactory.
Fire Supervisory System Design Based on Embedded System
Authors: Zheng Liang , He Rong , Wang Wei Jie
Published: September 2013

This paper introduces fire supervisory system design based on embedded system using by ARM9. Embedded technology and field bus technology are used for the system design. The system can realize detecting on-line. Showing uninterruptedly the information for fire monitory point of the building, the working current for electricity lines, the leakage current, as well as environmental temperature parameters e.g., through the LCD panel. Through this system The fire information of the building and the electrical wiring or the change, fault and abnormal condition for fire danger parameters of the equipment can be mastered at any time, and the hidden fire danger can be found in time, eliminating the hidden fire danger through the alarm and terminal linkage device.
Integrated Design about Guidance and Control in Inversible System of Neural Network
Authors: Cao Jian , Yan Cong , Li Jian He
Published: September 2013

Integrated design about guidance and control in inversible system of neural network is proposed. Firstly, an integrated guidance and control model with uncertainties can be described. Secondly, a nonlinear observer is designed for the integrated guidance and control model. Subsequently, selection of training sample is focused on. Finally, the simulation results show that the nonlinear adaptive guidance law using the proposed integrated design model can perform better than the one designed separately.
The Research on a Rapid Appearance Detection Method for Vertical Polarized Electrolytic Capacitors
Authors: Dai Min , Wang Chen Yang , Chen Kai , Zhang Zhi Sheng
Published: September 2013

For detecting the defects of the vertical polarized electrolytic capacitors in the process of production, an online machine vision detection method based on DSP is proposed in this paper. The hardware framework is designed emphatically with DM642 as the core processor, which has the advantages of small size, fast processing speed, low cost and low power consumption. The software workflow of the capacitors defects detection is introduced. To meet the requirement of high production and real-time detection of capacitors, a rapid appearance detection algorithm is introduced by using a few number of feature points instead of the whole. The experimental results show that the proposed method can achieve many types of defects detection of the capacitors.
Improved Harmony Search Algorithm with Crossover Operation
Authors: Xia Hong Gang , Wang Qing Liang
Published: September 2013

Harmony search (HS) algorithm is a good meta-heuristic intelligent optimization method and it does depend on imitating the music improvisation process to generate a perfect state of harmony. However, intelligent optimization methods is easily trapped into local optimal, HS is no exception. In order to improve the performance of HS, a new variant of harmony search algorithm is proposed in this paper. The variant introduce a new crossover operation into HS, and design a strategy to adjust parameter pitch adjusting rate (PAR) and bandwidth (BW). Several standard benchmarks carried out to be tested. The numerical results demonstrated that the superiority of the proposed method to the HS and recently developed variants (IHS, and GHS).
Research of Stereo Matching Based on HALCON
Authors: Xiang Hui Yu , Li Zhe , Huang Jia Jun , Han Baoan
Published: September 2013

Binocular stereo matching is a hot and difficult problem in machine vision. In this paper, based on the matching method of Halcon which is visual software perform image matching. First, performing binocular stereo vision system calibration, based on the calibration results acquired the epipolar standard geometric structure. Then, image matching researched under this structure. At last, using ncc matching algorithm, through comparing the different parameters matching window obtain ideal match results. Experiments prove that this method not only can effectively shorten matching time, but also can achieve higher matching accuracy.
Based Multimedia Technology in University Teaching Dance Classes and Research
Authors: Fu Qiang
Published: September 2013

With the digital age with the rapid development of information technology, marketing, networking, multimedia devices into people's lives, colleges and universities have also appeared in the popularity of multimedia equipment and technology and universal application. Professional teaching dance for universities, from the multimedia technology in university teaching dance development status of the actual situation, respectively, from the college dance theoretical courses, practical courses dance, dance integrated curriculum, explains the meaning and role of multimedia technology in university dance the importance of teaching.
A Comparative Analysis of Inductors with Square and Conical Contours
Authors: Khoo B.K. , Mark Ovinis , Thirumalaiswamy Nagarajan
Published: September 2013

Winding pattern and contour are important factors in power inductors with multiple layer windings, since power inductors with multiple layers are prone to proximity effect, as multiple stacking increases the resistance stress of a conductor, eventually leading to failure of the inductor. This paper presents a comparison of winding losses for cone and square contour inductors, and discusses possible causes for the discrepancy. Conical contour inductors within a fixed core window are comparatively better than square contour winding inductors. A cross sectional analysis after winding revealed that the conical contour inductor has a gap between the conductors, indicating no melting and diffusion between layers. The absence of diffusion due to thermal degradation in conical contour winding is believed to be due to the conductor skin thickness, which is on average smaller, owing to the lower winding stresses. For a fixed dimension core and number of turns, winding losses can be reduced using a cone-shape contour compared to a square-shape contour
Equation Model of Stabilization of Low Damped Astatic Systems
Authors: Rimár Miroslav , Fedák Marcel , Kuna Štefan
Published: September 2013

The paper deals with the stabilization of low damped astatic systems. They show a low value of a relative damping and consequently a high resonance rise of amplitude frequency response. If astatism occurs in an automatic control system, the situation becomes complicated due to the exhaustion of a phase safety of astatic element. In order to achieve the stabilization, a filter with rejections has been designed. The filter is characterized by rapid rejections of logarithmic frequency characteristics that eliminate resonance rise of a low damped astatic system. A functional model of a discrete filter was created to attest the properties of the filter with a continuous low damped astatic system. Experiments have proved the suitability of the filter application. The method of the filter utilization, the stability of the low damped astatic system as well as the stability assessment by the operator W will be described in the paper.
The Structure Dynamic Optimum Design of the Frame for High Speed Conveying Manipulator Based on Sensitivity Analysis
Authors: Xue Feng Wei , Zhou Ji Ping , Wang Ke , Zhan Jun Yong
Published: September 2013

To improve dynamic properties of frame structure uses the method of sensitivity analysis of optimizing the thicknesses. And adopting the way of combining the partial sensitivity analysis with global sensitivity analysis finds out important design parameters, which can ensure the ideal dynamic performance of the frame structure and make the frame light in weight.
Theoretical Analysis and Experimental Study of a Cantilever Beam-Type Dynamic Vibration Absorber
Authors: Zhao Jun , Ma Chao Yang
Published: September 2013

Aiming at the limitation problem of constant dynamic parameters for classical vibration absorber, a new cantilever beam-type absorber device is designed which is composed of a continuous beam and mass block, a vibration isolation system model with a beam-type absorber is established, the absorption frequency of the mass block at different positions is calculated. And based on the software of ADAMS, the frequency response characteristics of the system are obtained. Finally, the good vibration absorption of the beam absorber is verified. The results show that the feasibility and effectiveness of cantilever beam-type absorber is confirmed, and the dynamic vibration absorber with continuous adjustable parameters is achieved.
Identification Method Based on Multiple Order Correlation Analysis of Arc Surfaced Cam Motion Curve
Authors: Yao Y.Y. , Wang Ya Fei , Zhao Li Ping
Published: September 2013

Conventional arc surfaced cam curve fitting mostly used the least squares to realize, however, arc surfaced cam required to ensure the movement curve of the displacement, velocity and acceleration continuous smooth. Therefore, it needed multiple order correlation analysis of arc surfaced cam motion data, to get the correlation coefficient and its similar morphology category of arc surfaced cam actual movement in surface of position, velocity and acceleration, to provide a theoretical basis for further improving surface machining precision of arc surfaced cam motion.
Research on Dynamics Simulation of Moving and Stationary Vibration Screen
Authors: Xu Shao Hua , Cao Wen Cheng , Zeng Li
Published: September 2013

The vibrating modes of vibration screen box can be divided into single degree of freedom excitation and multiple degrees of freedom excitation. This paper puts forward the conception of multiple degrees of freedom excitation and sets up the dynamic equation of multiple degrees of freedom excitation vibration screen while the characteristics of one freedom vibration screen are summarized. Through the MATLAB programming language, using the four order Runge-Kutta method, we do a dynamics simulation research on an instance for this type of vibration screen, and analyze the characteristics of this type of vibration screen.
Research on the Design and Simulation of Photovoltaic Cell Array Simulator Circuit
Authors: Liu Chen , Zhao Hou Ru , Shu Shuang Bao
Published: September 2013

Based on the theoretical analysis of solar cell,a kind of photovoltaic cell simulator’s main circuit and relevant control system are designed.What’s more,the simulation model is build up under the solar cell array simulator by Simulink.We also carry out researches as well as simulation analysis with regard to its working conditions with resistance loaded. In the end , the analysis of the simulation’s outcome confirms the correctness of our designed circuit and model .
Grinding Force Control of Polishing Cubic Zirconia Gem by an Automatic Faceting Machine
Authors: Kaothong Chanainat , Sangveraphunsiri Viboon
Published: September 2013

This research work is to develop a controller that combines the position and indirect force control for the gemstone polishing process. The polished gemstones are attached to the end of drop-stick of the Chula Automatic Faceting Machine. The Chula Automatic Faceting Machine has 4-axis high precision motion control and the other 2-axis for spindle and crank motion. Many gemstones (number of gemstones will depends on the size of the gemstone) can be grinded and polished simultaneously with the result of uniform size and quality.
In this research work, the controller is developed based on PID motion control. The reference position of the controller for the grinding process is obtained based on the compliance force control technique with known compliance model. This reference position will specified the pressing force for the grinding process indirectly. The controller developed in-house is used for testing with Cubic Zirconia gemstone which the hardness is 8.5 Mohs. The compliance model and appropriate parameters including the minimum and maximum boundary of polishing process can be obtained experimentally. Then all parameters obtained from the experiment can be used in the controller. The uniform size and quality of the multi-stone grinding and polishing process can be obtained with this controller.
Laser Doppler Vibrometry for Structural Dynamic Characterization of Rotating Machinery
Authors: Castellini Paolo , Martarelli Milena , Tomasini Enrico Primo
Published: September 2013

Laser Doppler Vibrometry (LDV) is a well established technique able to accurately measure vibration velocity of any kind of structure in remote, i.e. non-intrusive way, this allowing to overcome the problem of mass loading, typical of contact sensors as accelerometers and strain-gauges, which has strong influence in case of lightweight structures. Moreover, the possibility of driving automatically the laser beam, by means of moving mirrors controlled with galvanometer servo-actuators, permits to perform scanning measurements at different locations with high spatial resolution and reduced testing time and easily measure the operational deflection shapes (ODS) of the scanned surface. The exploitation of the moving mirrors has allowed to drive the laser beam in a continuous way making it to scan continuously over the structure surface and cover it completely. This way of operation, named Continuous Scanning LDV, permits to perform full-field measurements, the LDV output carrying simultaneously the time-and spatial-dependent information related to the structural vibration. A complementary strategy making use of the LDV coupled with moving mirrors is the so called Tracking LDV, where the laser beam is driven to follow a moving object whose trajectory must be known a priori or measured during operation (e.g. via an encoder in the case of rotating structures). In this paper some applications of the Tracking Laser Doppler Vibrometry (TLDV) and Continuous Scanning Laser Doppler Vibrometry (CSLDV) will be described they concerning, specifically modal and vibrational analysis of rotating structures.
Dynamic Analysis of Diesel Engine Piston Based on Time Spectral Element Method
Authors: Zhang Yan Gang , Su Tie Xiong , Li Wei Huan , Mao Hu Ping , Zhou Na
Published: September 2013

On the basis of traditional static finite element simulation, the paper adopts time spectral element method with higher accurate of interpolation precision to disperse the alternating mechanical load, meanwhile, applies the load results to its piston dynamic analysis to get the time history curve of piston stress and distortion. What we get from the experiment provides theoretical foundation for further study of piston fatigue analysis and life prediction.
Foaming of PPC/Wood Fiber Composite Using Moisture Contained in Wood as Blowing Agent
Authors: Guan Li Tao , Yang Chong Ling , Yuan Na Xin , Xie Di Wu
Published: September 2013

The processing of PPC/wood fiber foam composites using moisture as blowing agent was studied in this manuscript. Three important factors, such as: moisture content, wood fiber content and extruder die temperature were investigated with orthogonal design. The relationship between each factor and foam density was revealed, as well as the foaming mechanism was obtained.
Substation Inspection Robot Crawler Obstacle-Navigation Platform Complex Environment Research
Authors: Wang Tong Bin , Wang Hai Peng , Xiao Peng , Luan Yi Qing , Li Li
Published: September 2013

state grid electric power robotics laboratory has developed four generations of substation inspection robot, but large scope of substation outdoor and route of road surface condition is complex, the application of inspection robot produced strong constraints, the inspection robot under complex road conditions of obstacle ability put forward higher request. Through this study design of crawler obstacle-navigation platform enhances the obstacle negotiation ability, enable it to adapt to complex terrain conditions. Adopt six crawler structure, can cross the road the road opposite sides-to hold the substation, obstacles such as cable trench cover plate, and good stability, not easy to roll over, to the district of equipment to test the equipment, improve the ability of task. Key words: caterpillar; The obstacle-surmounting platform; Inspection; The robot
Autothermal Reforming of Ethanol for Hydrogen Production: Thermodynamic Analysis
Authors: Srisiriwat Nawadee , Wutthithanyawat Chananchai
Published: September 2013

This work presents the autothermal reforming (ATR), or called oxidative steam reforming (OSR), of ethanol for hydrogen production. A thermodynamic analysis of product distribution for ATR from ethanol has been performed by using the method of Gibbs free energy minimization. The effect of steam-to-carbon (S:C) and air-to-carbon (A:C) molar ratios under adiabatic temperature of ATR reactor on chemical equilibrium composition of hydrogen rich stream is investigated. An increase of S:C ratio increases an efficiency of hydrogen production while carbon monoxide formation decreases but, however, more energy consumption for preheating reactants is also needed. An increase of A:C ratio in the range between 0 and 1.75 causes an increase of hydrogen yield but at greater A:C ratio, a decrease of hydrogen production and more water formation can be found. The results of the thermodynamic equilibrium show that the predicted hydrogen composition in the reaction of fuel-water-air system at constant temperature is higher than that obtained from experiment in both the absence and presence of catalysts in the OSR reaction when the temperature is fixed at 700 °C. The predicted carbon monoxide is lower than that obtained from the results of non-catalytic reaction but higher than that attained from the presence of catalyst in process.
Applications of Mud Pulse MWD/LWD System in Bakken Formation, North Dakota, USA
Authors: Han Guang Zhi , Ai Chi
Published: September 2013

10,000 ft horizontal drilling and hydraulic fracturing with 24 to 36 stages are prominent in Bakken petroleum system with great success. Although advanced automated drilling system with cutting edge comprehensive logging units are available from service providers to obtain various data assisting comprehensive real-time analysis, conventional positive displacement motor (PDM) with mud-pulse (MP) measurement while drilling (MWD)/logging while drilling (LWD) system is still widely applied in this area to steer and navigate the well bore in pay zone with cost-effectiveness and efficiency. In this paper, several field cases for MP MWD/LWD systems will be discussed and lessons will be summarized to help optimize rate of penetration (ROP), reduce non-productive rig time, and improve operators drilling practices.
Research on Network Layout of Provincial Highway Emergency Material Reserve Center
Authors: Wang Jian , Li Feng , Liu Juan
Published: September 2013

In China, provinces are the basic units for carrying out the highway emergency material reserve layout. From the perspective of resource distribution, this paper applies the modern location theory, operation research, the optimal path search and other technologies to establish the provincial highway emergency material layout optimization goal and to construct the related algorithm. Furthermore, Jilin Province is taken as an example to prove the validity and reliability of the algorithm. This paper tries to offer the theoretical guarantee for the provincial research of emergency materials reserve network and to provide the guideline for the related management and development.
A Method to Calculate Carbon Footprint of Processing Sectors Based on Gaussian Mixture Model
Authors: Liu Xue Ping , Liu Zhi Shan , Xiang Dong , Gao Lang , Cui Yang , Liu Yu
Published: September 2013

Carbon footprint is used to measure the impact of products or services on environment in recently years. The main technology in evaluating carbon footprint comes from LCA and PAS2050. However, the detail in calculating carbon footprint is not well studied. In this paper, the focus was drawn on the processing sectors. Due to the statistical character of data collected in processing sectors, the GMM (Gaussian Mixture Model) is introduced to calculate carbon footprint. With this method, the statistical meaning of carbon footprint data is well understood.
The Impact of the RFID Technology in the Supply Chain
Authors: Lu Shan , Wei Xing Yu , Lei Quan Sheng
Published: September 2013

Inventory inaccuracy deriving from the distortion of inventory information may possibly result in the stock out in supply chain system, spawning a great number of economic losses. Dealing with this problem, the partners in the supply chain can choose to introduce the advanced automatic identification system. In this paper, considering a three-level supply chain facing stochastic demand and suffering from inventory inaccuracy, we present a simulation model to study the increase of revenue when the supply chain introduces RFID technology. We compare the revenue of the supply chain system in two situations: The first situation deals with the case where the supply chain operates with inaccurate inventory information. In the second situation, RFID technology is introduced to eliminate the inventory inaccuracy. Further, we investigate the benefits of using RFID technology to eliminate the inventory inaccuracy within the supply chain.
Application and Simulation of SVPWM Control Techniques in Three-Phase PV Grid-Connected Inverter
Authors: Xue Yang , Li Yuan , Zhang Jia Dong , Lin Jing , Yang Jun Tao
Published: September 2013

The space vector pulse width modulation (SVPWM), as a new kind of vector control technique, has the advantages of high voltage utilization, less distorted output, simple control method, etc. In this paper, the control technique is applied to three-phase photovoltaic (PV) grid-connected inverter system. It uses double loop control method combined with PI control technique. The simulation model of PV grid-connected inverter system is established in Matlab/Simulink. The simulation results show that the application of SVPWM technique effectively improves the dynamic performance of PV grid inverter system and the THD of grid-connected current is low.
Twin Elevator Group Optimization Dispatching Based on Genetic Algorithm
Authors: Ding Bao , Li Qing Chao , Zhang Jin , Liu Xiao Feng
Published: September 2013

For the characteristics of a new elevator twin elevator with multiple objectives and uncertainty of group control system ,this work proposed a method of twin elevator group optimization dispatching based on genetic algorithm (GA). On the basis of the analysis of structure characteristics of twin elevator, by means of putting twin elevator running rules into the multi-objective control strategy, the method constructed objective function for twin elevator group; the method utilized GA for the simulation of twin elevator group optimization dispatching, and compared it with the minimum waiting time algorithm. Research results show that the method is able to adapt to the running characteristics of twin elevator, and different traffic flow pattern. Compared with the ones of the minimum waiting time algorithm, average waiting time, long waiting time incidence and the numbers of elevator stops of genetic algorithm are all significantly reduced. Consequently, this method has a strong ability to adapt, and provides a theoretical basis for engineering application of twin elevator group control system.
Self-Tuning Fuzzy Controller Design for a Switched Reluctance Motor Drive System
Authors: Wang Shun Yuan , Tseng Chwan Lu , Lin Shou Chuang , Chou Jen Hsiang , Chen Yu Wen , Sung Wen Tsai
Published: September 2013

This study adopts the fuzzy control theory to design a self-tuning fuzzy controller (STFC), which allows adjustment to overcome the controller design difficulty caused by switched reluctance motor (SRM) nonlinearity. Based on the torque sharing function (TSF), the proposed STFC was implanted into an SRM direct torque control (DTC) drive system to develop a system with superior speed and electromagnetic torque dynamic responses. In addition, the control strategy possessed excellent electromagnetic torque response, and effectively improved the dynamic response of the system. Keywords: fuzzy control theory, switched reluctance motor (SRM), torque sharing strategy.
Mobile Device Monitoring System in the Plant by an Innovative Approach
Authors: Lian Kuang Yow , Hsiao Sung Jung , Sung Wen Tsai , Chen Jui Ho
Published: September 2013

This This paper proposed method is to use a Smart phone in the real - time situation to carry out monitoring and controlling factory zone temperature, humidity, air quality, flame detection, staff not near the danger zone detection and electrical load analysis. The monitoring range also includes operating machine vibration detection in the factory area, so these methods are innovative research. Our research proposes the integration of ZigBee and Wi-Fi protocol intelligent monitoring system within the framework of the entire plant. The factory sensor using the ZigBee protocol to deliver the message, and real-time sensing data is sent to our integrated embedded systems. Our paper presents an integrated embedded systems using the open-source Arduino DUE module, which is a 32-bit ARM core. Our study proposed a way that writes the network code to ARM chipset become integrated controller. The intelligent integrated controller will instantly analytical processing by the ZigBee sensor pass to the message. Simultaneously this study using Android APP and web-based methods to show the measurement results. The web-based and Android APP approaches will transfer these results to specify the cloud device by way of the TCP / IP protocol. Finally, this paper utilizes FFT (Fast Fourier Transform) approach to analysis of power loads in the factory zones. Simultaneously this study also uses NFC (Near Field Communication) technology to carry out the actual measurement of the total electricity load experiments by smart phones.
Intelligent Environmental Monitoring and Automation System
Authors: Chen Jui Ho , Sung Wen Tsai , Wang Hsi Chun , Chung Chun Yen
Published: September 2013

This study production of smart house to show the entire system, the use of self-sensing module and the 8051 monocrystal chip processing sensor signals, the success achieved with the measurement of temperature, humidity, illumination, carbon monoxide sensor module. The way transmits by wireless (ZigBee chips) and wired (DAQ signal acquisition device) sensor value send to the server-side carries on remote monitoring and record etc. In accordance with environmental requirements set in the server-side sensing value, using the infrared ray way automatic control load. When necessity also can use the available hand-hold remote control, dual control functions to enable the environment to be safer and the comfortable home life.
Single Camera for Multiple Vehicles License Plate Localization and Recognition on Multilane Highway
Authors: Tseng Hung Li , Hung Chao Nan , Tan Sun Yen , Tuan Chiu Ching , Lee Chi Ping , Huang Wen Tzeng
Published: September 2013

License plate recognition systems can be classified into several categories: systems with single camera for motionless vehicle, systems with single camera for moving vehicle, and systems with multiple cameras for moving vehicles on highways (one camera for each lane). In this paper we present an innovative system which can locate multiple moving vehicles and recognize their license plates with only one single camera. Obviously, our system is highly cost effective in comparison with other systems. Our system has license plate localization success rate 94% and license plate recognition success rate 88%. These success rates are pretty satisfiable considering the system is working on fast moving vehicles on highway.
An Optimal Study of a Gripper Compliant Mechanism Based on Fuzzy-Taguchi Method
Authors: Dao Thanh Phong , Huang Shyh Chour
Published: September 2013

In this paper, a gripper mechanism with two flexible elements for grasping the objects was investigated. In general, to achieve the good the flexibility and the life strength, the flexible hinges often offer the highest elastic energy store while the lowest stress concentration is also required simultaneously. Therefore, to handle this multi-objective optimization problem, this study used the fuzzy logic based Taguchi method. The two input parameters, namely a vertical force and a horizontal force that primarily influence the displacement and the stress. These were controlled with regard to two-objective functions as the torque of torsional spring and the stress. In addition, formulating two-objective functions was based on the procedure of a pseudo-rigid-body model (PRBM) and the principle of virtual work. The results found that a vertical force of 0.5 lb and a horizontal force of 0.4 lb are favorable parameters for a suggested gripper. Using ANOVA, the results also revealed that a vertical force is the most significant parameter with highest F value of 1.188.
Application of Improved Dows Fire and Explosion Index (F&EI) for Organic Solvent Recovery Plant
Authors: Zhang Miao , Song Wen Hua
Published: September 2013

The Dow fire and explosion index (F&EI) is universally used in evaluating the hazard category of a process plant, area of exposure, expected losses in case of fire and explosion, etc. In the current procedure, the effects of the safety management measures (SMMs) on the F&EI value are not taken into account. This makes the plant look more hazardous, makes it more spread out, requires more elaborate emergency measures and alarms the public more than is necessary. The objective of this paper is to develop an improved Dows fire explosion index which not only supplemented and detailed the safety compensation coefficient and added the safety management coefficient in the F&EI value. And furthermore, this paper calculates and evaluates quantitatively the fire explosion risk of organic solvent recovery plant in a pharmaceutical factory based on the improved evaluation method. To do this, we have developed the relevant equations and have proved the efficacy of the SMMs by means of an actual case, and the evaluation results are more accurate and scientific.
Application of the Non-Destructive Testing Method to Determine the Gmax of Bangkok Clay
Authors: Piriyakul Keeratikan
Published: September 2013

This article presents the application of the non-destructive testing method (so called Bender element test) to measure the shear wave velocity and determine the maximum shear modulus of soft Bangkok clay samples. This research proposes the bender element technique to measure the shear wave velocity by means of piezoelectric ceramic sensors. The details of the bender element test were clearly explained. The laboratory bender element test data of the shear wave velocity were compared with the field test results and show that the field propagating waves pass along layers of higher stiffness while the laboratory test data were performed on small, possible less stiff material. The inversion calculation of the shear wave velocity in the field test is based on a linear elastic isotropic assumption which is not valid for the Bangkok subsoil and might be a second reason for the noticed differences in velocity.
The Latest Progress of Intelligent Manufacturing Reviews
Authors: Zhu Zheng Hong , Wang Bao Yin
Published: September 2013

Intelligent Manufacturing (IM) as a new model of mechanical manufacturing industry, attractting widely attention and research in the world. This paper based on the latest research progress of IM at home and abroad, from the key tecnnology, application field to their respective characteristics, stated the latest research results in the world, prospected the future direction of IM.
Lab Investigations into High Temperature High Pressure Rheology of Water-Based Drilling Fluid
Authors: Xu Lin , Zhao Lin , Xu Ming Biao , Xu Jie , Wang Xu
Published: September 2013

HTHP rheology was investigated for the water-based drilling fluid applied in Yuanba region of Southwest Gas Fields in China. The results showed that under the conditions of temperature up to 180°C and pressure up to 100MPa, the Bingham plastic model is adequate to predict transient rheology at the given HTHP conditions. Effects of temperature on rheology are more dominant than that of pressure, but the latter will enhance at high temperatures and low shear rates. Finally, HTHP viscosity models were established and evaluated for water-based drilling fluid.
The Effect of Holes in the Compression Behavior and Energy Absorption of Aluminum Alloy AA7005 Tube
Authors: Bade Simhachalam , Lakshmana Rao C. , Srinivas Krishna
Published: September 2013

In this paper, compression behavior and energy absorption of aluminum alloy AA7005 tubes in T6 with and without holes are investigated numerically. True stress-plastic strain curves from the tensile test are used in the static simulation of AA7005 tubes. The deformed modes from the numerical simulation are compared between tube with and without holes. Energy absorption values and peak loads with and without holes are compared to develop the understanding on the size of hole to be used in tube for energy absorption control.
BP Neural Network and its Improved Algorithm in the Power System Transformer Fault Diagnosis
Authors: Zhang Hao Qian
Published: September 2013

According to the measured gas content in power transformers, we use BP neural network to accomplish the pattern recognition of transformer fault. The recognition effect of BP network pattern was studied from the aspects of adding over-fitting operation and genetic algorithm. Four kinds of neural network models, BP model BP & over-fitted identification model GABP model and GABP & over-fitted identification model, were constructed respectively, making the pattern recognition effect further enhanced.
Electronic Cam Trajectory Generation Algorithm Based on Global Optimal Control Points of Non-Uniform B-Spline
Authors: Wang Shen Hang , Hu Jian Hua , Wang Yun Kuan , Jun Zheng , Qin Xiao Fei , Wu Shao Hong , Chang Jian Zhang , Sun Hong Sheng
Published: September 2013

In order to improve the smoothness of electronic cam motion,an electronic cam trajectory generation algorithm based on global optimal control points of quintic non-uniform B-spline is prop-osed. This algorithm solves the problem of non-global optimization in existing approaches caused by transferring kinematic constraints into control point constraints to avoid the semi-infinite constraints problem. The interval ranges of the reserved free control point variables are calculated first, followed by partitioning and checking the subinterval with the property of the objective function and kinemat-ical constraints repeatedly until finding the global optimal control point. Compared with the existing control point constraints algorithm, the object function is optimized further and the electronic cam trajectory is smoother. Finally an practical example of electronic cam proves the effectiveness of the proposed algorithm.