bluuebunny/crossref_metadata_2025 huggingface dataset:
Stability Analysis Switched Systems
Authors: Zhong Fu Jian , Zhao Yong Chi
Published: August 2013

In this note, we have derived stability for arbitrary switching about absolutely stable subsystem and the stability problem has derived stability for arbitrary switching above all. In the next place we analyze detailed stability for the dwell time switching. In the end, we discuss that the switched system exist stable convex combination switching. At last, we give several numerical results are given to illustrate our derived results.
Case Representation and Organization Studies on Case-Based Reasoning Maintenance Resources Requirement Analysis
Authors: Chen Xiao , Chen Ling , Liu Wo Ye , Han Fei
Published: August 2013

To improve the efficiency of planning maintenance resources requirement, the artificial intelligent (AI) technology, especially Case-Based Reasoning (CBR) is applied into maintenance resources requirement analysis process, the process is introduced, and the critical techniques of which, such as case representation and organization etc, are discussed in detail, according to the case characteristics, analyzed the cases main ingredient, cases representation and organization which is based on Relation Database and Object Oriented are detailed discussed, the development of case-based maintenance resources requirement analysis prototype system proved the validity of the technique, formed the foundation for the case-based maintenance resources requirement analysis system perfection.
Advanced Techniques for NC Programs Preparation
Authors: Novak-Marcincin Jozef , Novakova-Marcincinova Ludmila
Published: August 2013

Realization of the control programs for controlling of the numerically controlled (NC) manufacturing machines is very important in manufacturing practice in this time. Manufacturing process of the parts with complex and free form figures is realized by NC manufacturing machines application. It is very difficult without application of personal computers with special software. Very often this software can be Computer Aided Manufacturing (CAM) system. These programs for control of NC manufacturing machines can be realised by other methods, too. In paper is presented new method of NC programs preparation by Group Technology theory application.
Application of Image Processing and Fuzzy Logic to Mobile Robots Providing Assistance to Fire Fighters
Authors: Abbas Ayman , El-Geneidy Khaled
Published: August 2013

The motive behind this research project is to devise a method for overcoming some of the challenges faced by fire fighters in Egypt while accomplishing their duties. This is achieved by utilizing robot vision technology as one of the approaches used for task automation. Based on a study of different methods of automation in human tracking and fire fighting applications, image processing techniques with the highest potential in a fire fighting environment were identified. A system has been developed which fusses the selected image processing algorithms with fuzzified readings from distance sensors, to extract the major blue areas in acquired images that is more likely to correspond to the uniform worn by fire fighters in Egypt. Subsequently the extracted blue area is used to identify a region of interest within the image in order to reduce the computations. The feature detection process constrains its search for a feature found on the back of the target fire fighter to the identified region of interest. Based on the location and area of this feature, the system will calculate the required velocity components to control the motion of the robot and the camera pan and tilt mechanism, in order to continue tracking the target along its path. The system has been validated by conducting an experiment which simulates the key influential factors in a fire fighting environment.
Application of 3D Modeling and Simulation Using Modular Components
Authors: Daneshjo Naqib , Korba Peter , Vargová Renáta , Tahzib Baryalai
Published: August 2013

This work resolves a real problem of assembling the hold-on component unit with the main product item by closing the riveting operation integrated in the manufacturing process. The finalized component will be used for assembling the newest model power switch in production of this corporation. In this diploma work some possible variants will be provided. The workable solution of the best one will be suggested as a final mechanical problem resolution with detailed description of construction description, component selection and skeleton program design to build a special purpose machinery.
Numerical Simulation of a Low Reynolds Number Airfoil
Authors: Wang Yu Fu , Tao Guo Quan , Wang Ze Hai , Wu Zhe
Published: August 2013

In this paper, a low Reynolds number airfoil (S1223) is the objective of the study. The Navier-Stokes equations were established to simulate the complex flow around a low Reynolds number airfoil, in which the turbulence model was used. The complex flow around the airfoil was simulated at 2x105 Reynolds number and its aerodynamic characteristics were analyzed. The relationship among lift coefficient, drag coefficient and angle of attack was studied.
Composite Wing Flutter Speed and Frequency due to Variable Control Surface Deflection in Low Speed Wind Tunnel
Authors: Mahzan Muhammad Iyas , Muhamad Sallehuddin , Abdul Aziz Sa’ardin , Mat Ali Mohamed Sukri
Published: August 2013

Flutter is a dynamic instability problem represents the interaction among structural, aerodynamic, elastic and inertial forces and occurred when the energy is continuously transformed by the surrounding fluids to a flying structure in the form of kinetic energy. The study was conducted to investigate the relationship of the control surface deflection angle to the flutter speed and the flutter frequency. A wind tunnel test was performed using a flat plate wing made of composite material. It was found that by deflecting the control surface up to 45°, the flutter speed reduced almost linearly from 35.6 m/s to 22.7 m/s. The flutter frequency greatly reduced from 48 Hz without the control surface deflected to 34 Hz with the control surface deflected at 15°. After 15° deflection up to 45°, the flutter frequency reduced almost linearly.
Numerical Calculation of Air Mass Flow in a Dual-Rotor Piston Engine
Authors: Zou Ten Gan , Pan Cun Yun , Xu Hai Jun , Zhang Xiang , Chen Hu
Published: August 2013

Dual-rotor piston engine (DRPE) is a new kind of rotary engine, which is still under developing. The air mass flow is an important parameter of the engine test, and it is a basic ingredient to calculate driving force and fuel consumption. In the paper, based on the structure characteristics of the DRPE, analyze the theoretical flow calculation, so as to study the air mass flow characteristics of the engine. Finally get the characteristics of the air mass flow. The results are consistent with DRPE working cycle trend.
Premixed Combustion of a Fine AP/HTPB Composite Propellant Based on Detailed Chemical Kinetics
Authors: Cheng Chen , Bao Fu Ting , Zhao Yu , Xu Hao
Published: August 2013

A model for Premixed Ammonium Perchlorate (AP)/Hydroxyl-terminated Polybutadiene (HTPB) combustion based on detailed chemical kinetics was established on two-dimensional cylindrical coordinates using the Vorticity-Velocity formulation, finite difference methods and several essential mathematical algorithms. This model includes both solid and condensed phase combustion mechanisms and the detailed chemical kinetics of the gas phase with 37 species and 127 reactions. Results obtained from the model, such as temperature and burning rate, match data from experiments. It is found that the model established in the current study is reliable and accurate, and the Vorticity-Velocity approach combined with finite difference methods is capable of and efficient in dealing with premixed AP/HTPB combustion.
Bandit Detection System under Unstructed Lighting Condition with Different Discriminant Analysis Approach
Authors: Junoh Ahmad Kadri , Mansor Muhammad Naufal , Ya’acob Alezar Mat , Omar Nurhidayah , Ismail Siti Haida
Published: August 2013

Malaysia is not unique in facing the risk of increasing world crime rate each year. Therefore, in a mission to reduce the country's index crime and at the same time to provide the people with security, the Malaysian government has placed national security at the highest order of importance through the Reducing Crime National Key Results Area (NKRA). Thus, in order fulfill this demand and challenge our enthusiasm to create a better place for our beloved country. We proudly presented a bandit detection system under unstructed lighting condition with several discriminant analysis approach. These systems would enhance the Malaysian police arm forced performance.
The Method for Numerical Simulation of the Impact on the Infrared Radiation Seeker from the Warhead Shock Layer
Authors: Luo Da Lei , Liu Jun , Wang Yuan , Fan Deng Feng
Published: August 2013

It counts the impact on the infrared radiation seeker which in the head of the hypersonic missile. Firstly, it built the calculated model based on the shape of a missile, and compartmentalized the aerodynamics flow field grid , the infrared radiation seeker main mirror grid , the radiation field grid, and had the relation of the grids unambiguous, and got the communication of the aerodynamics flow field. Then it educed irradiance formula about the shock layer aerodynamic flow fled radiation affect to the infrared radiation seeker main mirror. The result is the infrared radiation wave band 3~5 to the main mirror, from the shock layer aerodynamic flow fled is about 120 W/m2. The distributing law of the impact is annular circumfused the center of the main mirror, the infrared radiation is the highest in the center of the main mirror, decreased by the radius of the main mirror.
Studies of Toggle-Lever-Toggle 3-Stage Series Force Amplifying Mechanism and its Applications
Authors: Su Dong Ning , Dou Yun Xia , Zhong Kang Min
Published: August 2013

With the help of multistage series force amplifying mechanism, the initial acting force can be amplified several dozen times or even up to more than one hundred times and meanwhile decrease the diameter size of a hydraulic cylinder or a pneumatic cylinder. On basis of previous studies, the author does some logic analysis on toggle-lever-toggle 3-stage series force amplifying mechanism and work out the logic pattern which is helpful for engineers and technicians to choose the right type of mechanisms according to engineering need. Also this paper gives the mechanics calculation formulas and their graphics which are instructive and reference value to engineering application. This paper also discusses the applications of toggle-lever-toggle series force amplifying mechanism in pneumatic fixture and pneumatic punch machine. By typical legend we introduce the work principle and technical characteristics of the relevant fixture and punch machine.
The Thermal Simulation and Control Technology in Spacecraft Vacuum Thermal Test
Authors: Liu Chang , Pei Yi Fei , Zhang Jing Chuan
Published: August 2013

The thermal simulation and control system is the core of vacuum thermal test of the spacecraft, which is used for tests design, data acquisition, thermal simulation and control, data management. In order to meet these application requirements, research contents and methods of keys techniques were expounded, which mainly includes three aspects: modeling analysis of test design workflow based on UML, architecture design and function design of test design software based on database and ASP; establishing universal driver function library based on VISA and SCPI, parallel driver design based on multithread technology; control mode and control algorithm design based on control objects requirements of the thermal simulation. Then the paper introduces the application of the research achievements, including test design software, data acquisition software, thermal simulation and control software. Finally, the paper prospects the main development direction of the thermal simulation and control technology along with the booming development of the China`s space industry.
Software Development for Satellite Thermal Design
Authors: Shirazi Abolfazl , Mirshams Mehran
Published: August 2013

Accurate thermal modeling for each part in the satellite is needed for achieving temperature gradients. The result of such a modeling will be the temperature gradients of each element of the satellite as a function of time. The aim of this paper is to present a new software which has been developed recently by the author at Space Research Laboratory for thermal analyzing of the satellites that is used to characterize the gradients of subsystems temperature as a function of time in space orbit. The software accomplishes accurate analysis of internal and external thermal loads of each part of the satellite and shows temperature gradients of each element. The purpose of designing this software is to create a useful application for thermal analysis of satellites, which is a helpful manner for testing satellite thermal subsystem. The most important usages of this software are designing thermal control subsystem, choosing proper equipment for thermal control subsystem and finding optimal configuration of satellite for having an ideal temperature gradient. The outputs of this software are validated by comparing them to a different thermal analyzing application.
The Phase Diagram of Butylated Hydroxytoluene and Paracresol System
Authors: Wang Yan Fei , Hou Ya Wei , Liu Yue Wen , Sha Zuo Liang
Published: August 2013

The phase diagram was experimentally determined by measuring the melting process for butylated hydroxytoluene (BHT)/paracresol system with differential scanning calorimeter (DSC). It was confirmed that this system is a binary eutectic system. Experimental results showed that the binary system is completely miscible in the liquid state and completely immiscible in the solid state. The compositions of the eutectic point were 28.37/ 71.63(BHT /Paracresol, mass percent) in the T-X phase diagram. The phase diagram data was modeled by different models, and it was found that Wilson model give better description of the experimental data.
Evaluation of Fatigue Endurance Foran Ultra Lightweight Inline Skate Frame
Authors: Kim Ho Kyung
Published: August 2013

In order to evaluate the fatigue endurance for an ultra lightweight inline skate frame, FEM analyses was performed. The tensile properties and an S-N curve were determined through tensile and fatigue tests on a modified Al-7075+Sc alloy. The yield and ultimate tensile strengths were 553.3 MPa and 705.5 MPa, respectively. The fatigue endurance limit of this alloy was 201.2 MPa. To evaluate the fatigue endurance of the inline skate frame, the S-N data were compared with the stress analysis results through FEM analyses of the frame. The maximum von Mises stress of the frame was determined to be 106 MPa through FEM analysis of the frame, assuming that the skater weight is 75 kg. Conclusively, on the basis of the fatigue limit, the inline skate frame has a safety factor of approximately 2.0.
The Study of Selection Method about Locking Point for Locking Type Hydraulic Torque Converter of Bulldozer
Authors: Zhang Li Yin
Published: August 2013

On the basis of study of traditional selection method about locking point, this paper made a large number of trial and comparative analysis for the selection of locking point, got a more effective method and gave the application example.
Mining of the Unexpected Event from Customer Feedback Comment
Authors: Yang Wen Chuan , Zeng Hao Yu , Li Rui
Published: August 2013

This paper does some research of mining for unexpected event from customer feedback comment, and it helps to forecast and alert the service problems. With the new services in Telecommunication businesses, lots of atypical unexpected incident hides in Telecommunication Feedback text. The incident has small probability and atypical attributes, and hard to understand and unobvious by ordinary way. We define this atypical unexpected incident as unexpected event. We construct the mathematical model for unexpected event, design the extracting algorithm, and try to verify its efficiency with Feedback text. The experimental results map out the correct possibilities for our algorithm.
Focal Points in Supervising Building Intelligent System
Authors: Zhang Yang , Zhang Yun Sheng
Published: August 2013

ntelligent systems are becoming main parts in more and more building engineering with the development of economy in China. It is given in this paper that the focal points in supervising intelligent systems of building engineering. Quality control procedures are described in detail, which can ensure that the intelligent system can realize the design requirements and meet the industry standards in the construction, system commissioning and testing. The summary of supervision in this paper comes from a large number of famous building engineering in Beijing, such as the National Stadium, ZhongGuancun Science and Technology Square, Beijing Hospital, Peking Union Medical College Hospital, etc.
Determination of Dimethyl Ether in Air by Cataluminescence-Based Gas Sensor
Authors: Gu Chun Xiu , Xing Zheng , Cai Xin , Zhang Jie , Gao Bin Juan , Zhou Kao Wen
Published: August 2013

A rapid and sensitive cataluminescence-based gas sensor utilizing nanosized Y2MnO5as the sensing materials for determining dimethyl ether in air was proposed. The luminescence characteristics and the optimal conditions were investigated in detail. The gas sensor showed high selectivity for dimethyl ether at 620 nm and satisfying activity at 210°C under the optimized conditions. The linear range of cataluminescence intensity versus concentration of dimethyl ether was 5~120 mg/m3, and the detection limit (3σ) was 3 mg/m3. No or weak interference was observed while the foreign substances, such as formaldehyde, ammonia, ethanol, benzene, carbon monoxide and sulfur dioxide, were passing through the sensor under selected conditions. The gas sensor displayed good stability for continuously introducing dimethyl ether over 100 h, and allowed real-time monitoring of dimethyl ether in air.
Experiment Research of Image Transmission over Wired and Wireless Environment
Authors: Zhong Xiao Jun , Yao Lu
Published: August 2013

We experimentally achieved a VHF over Fast-Ethernet communication system for image transmission. The quality of image is studied with considering the antenna vertical relative angle of the transmitter and receiver and the distance between transmitter and receiver. The signal-to-noise ratio is also studied for analyzing the image quality in this paper.
The Kalman Positioning Algorithm Based on TDOA/AOA
Authors: Deng Zhong Liang , Wang Xiao Guan
Published: August 2013

TDOA is a common used positioning method. Its advantage is to overcome the disadvantage that positioning time reference is strictly required in TOA method, and the measurement method is relatively simple. AOA needs only two base stations to realise positioning in theory, but the positioning accuracy is lower. TDOA/AOA hybrid positioning algorithm can certainly overcome this limitation to realize high precision positioning. Kalman filter is an optimum regression data processing algorithm. It is applicated widely in various optimal filtering and optimal control problems. For most of the problems, it is optimal, the most efficient and even the most useful. In this article Kalman filter algorithm is utilized to estimate the value of TDOA and AOA, which is used for position calculating to improve the accuracy of positioning.
Performance Enhancement of Limited-Bandwidth Industrial Control Systems
Authors: Al-Madani Basem , Al-Roubaiey Anas , Al-Hammouri Mohammad F.
Published: August 2013

Due to its portability, reliability, flexibility, real time and rich set of QoS support, Data Distribution Service (DDs) middleware became one of the best solutions for real time distributed manufacturing systems. Most of these systems are composed of heterogeneous networked devices where network bandwidth represents a very important resource. Those devices include limited-resources devices, such as sensors, actuators and controllers. Thus, controlling such resource will significantly enhance the overall performance of the network in terms of resource utilization, delay, and throughput; moreover, it reduces the cost of using leased network bandwidth by limiting the amount of bandwidth as much as needed. In this paper we propose a solution for controlling the limited-bandwidth networked manufacturing systems by using DDS; and we describe the DDS QoS polices that support manufacturing systems to control network bandwidth. Furthermore, we evaluate DDS middleware performance over Bluetooth channel by measuring latency, throughput and jitter; and examining different QoS parameters to show their effect on improving the existing limited-bandwidth networks.
Characterizations of the Perpendicular Magnetic Anisotropy in Ultrathin Films of Ta-CoFeB-MgO by X-Ray Photoelectron Spectroscopy
Authors: Cheng Chih Wei , Chen H.M. , Shiue C.H. , Lin Y.Y. , Li Y.Y. , Chern G.
Published: August 2013

The high magnetic anisotropy may enhance the thermal stability of the magnetic tunnel junction of CoFeB/MgO/CoFeB, which is a promising candidate for the high performance magnetic random access memory (MRAM). However, the interface stabilized perpendicular magnetic anisotropy (PMA) is not completely understood at this moment. In this study, we fabricated separated top and bottom Ta-CoFeB-MgO thin films and found both structures showed strong PMA after a 300 °C post annealing. However, the top structure has thicker magnetic dead layer and much higher coercivity relative to the bottom structures. The asymmetry between the top and bottom Ta-CoFeB-MgO structures may be attributed to the crystalline structure and interface diffusion. X-ray photoelectron spectroscopy depth profile reveals that the boron diffuses mainly toward to the Ta side at CoFeB-Ta interface in both top and bottom structures. It is mainly Ta that appears at the CoFeB-MgO interface of top structure while it is TaOx that appears at the CoFeB-MgO interface of bottom structure. A detailed discussion about the chemical states at the interface in Ta-CoFeB-MgO thin films will be given.
The Development of Interactive Information System for Flaw Evaluation in Recirculation Piping of BWR Nuclear Power Plant
Authors: Chen Kuen Tasnn , Ting Ku En , Chen Yu Yawn , Lee Ling Chun , Hsieh Kuen Chang
Published: August 2013

This study was base on the welding stress of recirculation pipe at Taiwan Power Company (TPC) which was the first nuclear power station (Chin-Shan) in Taiwan. Technicians or field engineers needed to understand the basic concepts of welding. When using internet processing system, the calculation time for obtaining the required data from the analysis of weld overlay stress had been reduced. Through the connection of internet and server the users entered the welding data from tables to the system, the analysis reports of the weld overlay stress were obtained in a few minutes. Moreover, the reliability in the analysis reports of the weld stress was examined and verified. Therefore, in the study the analysis process and programs developed were able to provide an accurate, simple, and fast analysis results and reports to users. Also, the weld analysis in a recirculation piping system was able to be used in the environmental evaluations.
High Speed Desktop Ultra Precision CNC Micro/Meso-Machine
Authors: Mekid Samir
Published: August 2013

This paper introduces the design, manufacturing and tests of a new CNC desktop milling machine dedicated to micro and meso-scale components. The paper discusses two types of micro-machine structure i.e. egg shape bridge and cantilever egg shape column. Both structures have been designed using an enhanced deterministic design method combining FEM and Taguchi methods. This has led to achieve tight geometric and kinematic errors and secured high machining accuracy observed in a couple of samples milled on the micro-machine.
Research on the Visual Language of Interior Interface Design
Authors: Su Xiao , Huang Kai , Zhang Zhong Feng
Published: August 2013

nterior interface is formed with the ground, side and top of interior space. By introducing the necessity of studying on the visual language of interior interface design, it analyzed the three visual vocabularies of interior interface design which are materials, form and color, and then it discussed the three visual grammar of interior interface design which are the comparison and coordination, symmetry and balance, and rhythm and rhyme. Then it made a summary of the characteristics of the visual language of interior interface design which are three-dimensional space existence, the goal of transmitting information, and aesthetic value. In the end, it pointed out the broad prospects of studying on the visual language of interior interface design which can be further studied.
Waist Circumference Measurement Extraction from 3D Scanner Data
Authors: Elbrecht Pirjo , Henno Jaak , Palm Knut Joosep
Published: August 2013

The growing power of computing, development of methods of 3D graphics for human body modeling and simulation together with development of 3D image capture technologies using 3D scanners has caused rapid development of digital tailoring - a complex of methods where made-to-measure clothing is produced starting with 3D scanning of a customer, extraction of essential measurements from obtained data cloud and then automatic production of a garment corresponding to exact measures of the customer. Extraction of exact measures from the ca 200000 data points produced by 3D scanner is a complex problem; in the following are considered methods for solving waistline determination and waistline circumference measurement finding.
Operations Analysis: A Case for Supply Chain Performance
Authors: Nakaie Makoto , Hau Gong Zee , Sorooshian Shahryar
Published: August 2013

Under the on-going globalization economic trend, for international businesses that transports raw material, intermediary goods, and end products across borders, establishing and sustaining an efficient supply chain is the most critical part of their business strategy to succeed. But how do managers know that the firms supply chain is performing efficiently and effectively? Continuous measurement to obtain feedback and implementation of improvements based on the retrieved information is the answer to that. Balanced scorecard, which was developed by Kaplan and Norton, was a milestone for performance evaluation in supply chain management, which asserted in measuring performance not just from financial perspective, but to determine by focusing on the customer, internal process, and learning & growth. Since then to present, the scorecard has been evolved to further generations to correspond with the rapid changing economic situation.The following case study on Danone Dumex Sdn Bhd was conducted on a purpose to appraise a practical international business supply chain by using first generation balanced scorecard as a gauge. Danone Dumex was chosen as evaluation target due to the nature of business, which is a manufacturing firm that requires multinational logistics. For the research method, company report was reviewed, personal interview to a supply chain director was performed, and extensive information sources were revised and filtered. From the assessment, for customer, financial, and internal process perspective, Danone Dumex had an outstanding performance. This is attributable to their business strategy of customer above all, and based on that, the firm has established a prominent standard in quality control and market forecasting system, and implemented to its supply chain by utilizing customized SAP. Meanwhile, their less emphasis on learning and growth perspective should be reconsidered in a long-run, as its competitors are improving on the same direction as Danone Dumex is heading.
Analysis of the Textile Materials and Art Forms of Minorities in Yunnan
Authors: Wang Chong Lan , Hu Wei Ping , Yang Xiao Ping
Published: August 2013

The minorities in Yunnan are quite skilled at weaving and embroidering techniques, and they boast the unique materials and special textile art form. With the plant material resources in Yunnan, they are able to create numerous kinds of patterns and drawings on the textile fabric, surrounded by the local rural flavor and intense ethnic characteristics. However, with the social and economic development, together with the opening to the outside world, this ethnic textile activity which reserves much of the primitive style and national characteristics has shrunk and stalled at this moment, turning into the modern manufacturing of commercialization. It is a necessity for the textile art design to embody distinctive nationality and local characteristics before opening to the world. At present, it is of great value to study the textile materials and art forms of the minorities in depth and figure out the whole process from the acquisition and preliminary processing of textile raw material to spinning, weaving, printing and dyeing.
Optimization of Porous SiO2 Antireflective (AR) Coatings Used in Encapsulating Solar Modules
Authors: Tian Jing , Deng Shu Kang , Yang Pei Zhi
Published: August 2013

Base catalyzed sol-gel derived porous SiO2 coatings are prospectively used as antireflective (AR) layer for encapsulating solar modules. In this paper, the properties of SiO2 AR layers coated on solar glass by different dip-coating and annealing conditions are investigated and optimized. It is shown that the transmittance of the AR coating is affected by these preparation conditions which closely related to the thickness and surface morphology. As results, the SiO2 coating had a better performance both in transmittance and adhesion when the dip-coating speed and the annealing temperature are 0.036mm/s and 300°C respectively. Further more, TMCS hydrophobic treatment was adopted to make the AR coating meet the demands of practical application.
Generic Simulation of an Automated Assembly
Authors: Sithebe Thembelani
Published: August 2013

System design generally involves making long-term decisions such as facility layout and system capacity/configuration. As such, models are typically created and used for a single design exercise, and model run time is not a significant factor during the simulation process. The simulation process is based on the use of Simio standard simulation program. This chapter comprises of a generic workstation diagram that shows a setup of an ideal assembly line. This assembly diagram is the basis from which a flowchart/ algorithm is derived from. The assembly line consists of workstations (one to some given number N). N in case is six. Each workstation is fed by buffer storage areas which are continuously replenished according to the supply conditions of the program. A transporter transports the assembly in between stations. This transporter can either be a conveyor as is with Arena, or a vehicle, as is the case in the Simio program. The Generic Flowchart is based on the Generic Assembly Diagram. The given steps from the identification of the component to has the component has been assembled? occur in one assembler and are for one component. These activities (flowchart) are repeated for each component up to the required number of components that make-up the product, i.e. the loops are repeated for each component in the assembly process. The purpose of this paper is to establish a generic simulation process, which will be based on the generic algorithm and generic assumptions to be used to simulate an automated assembly process. In this generic program, the following parameters can be varied: number of workstations, number of components, and order of assembly, cycle time, time to assembly, component and workstation availability and buffer capacity.
Design of Video-Decoding System Based on the FPGA
Authors: Wang Jian Min , Liu Jia Qing , Ban Chun Cheng , Gui Tai Long
Published: August 2013

The design and implementation of video-decoding system are analyzed. And then, the video decoding and data processing scheme based on the FPGA and video-decoding chip ADV7181B is proposed. The I2C interface, used to configurate the register parameters of video-decoding chip ADV7181B, and the decoder of ITU-656, the storage of YCrCb, conversion between YCrCb and RGB and the display of VGA are implemented using FPGA. The all sub modules were described using Verilog HDL in the design, and merged in a module after they were emulated successfully. The module was come through and verified. The experiments results show that the system designed in this paper performed well.
Research on Cloud Computing Based Computer Intelligent Video Surveillance System
Authors: Zhang Chun Fei , Fang Zhi Yi , Qu Hai Qin , Chuang Zhao
Published: August 2013

Computer intelligent video surveillance system is one of new arising high-tech application field. In this paper, we proposed a cloud computing based computer intelligent video surveillance system and introduced the main modules of the system. This paper also proposed a new improved method of video motion detection based the comparing of the optical Flow method, temporal difference method and background difference method. Experimental results confirm the effectiveness and efficiency of the model.
Double-Arc Interpolation and Simulation of Free Curve Based on Keller
Authors: Zhu Lin , Li Ji Lin
Published: August 2013

The free curve as bus bar has increasing number of application in the field of modern machining .While the Keller was not perfect which was found in more and more production practice, in particular doesnt draw and machining of freeform curves. In this paper apply stretching step method to get key nodes, then make use of the double-arc method to approach the free curve, using Visual Basic to preparation of the supporting software, to generate DXF file that can be recognized by Keller, and then achieve the purpose that increasing the ability of free surface processing.
The Development and Performance Analysis on Static Experiment System of Ship Models
Authors: Ma Yong , You Shi Zhou , Zhou Guang Li , Zhang Liang
Published: August 2013

To conduct ship model inclining experiments and floating state adjustment experiments, a static experiment system is developed, including research and development of hydrostatic flume, connecting frame, attitude instrument and data acquisition and analysis processing module. And the work principle of the system is discussed. Furthermore, ship model inclining experiment, floating state adjusting experiment, and roll, pitch, heave free decay experiment are conducted to analyse the performance of this system. Results of the experimental indicate that the system has a satisfactory testing precision. In the model inclining experiments, relative error of vertical coordinate of center of gravity of the ship model is 1.5%, relative error of the longitudinal coordinate is 0.18%; in the floating state adjusting experiment, standard error of transverse inclination is 0.06 degree, standard error of longitudinal inclination is 0.03 degree, standard error of heaving measurement is 0.15mm; the free decay experiment proofs that the experiment system can realize dynamic measurement of roll, pitch and heave. This experimental system with high precision has a good application prospect which can be used in ship model inclining experiment, floating state adjusting experiments, as well as model hydraulic performance test study.
H Infinity Control of Descriptor System with Impulse Mode in Novelstate Derivative Space Form
Authors: Tseng Yuan Wei
Published: August 2013

There are three problems that people usually have to face when they carry out optimal control designs in state space system form or descriptor system form. They are no state derivative considered in cost functional,no well-developedstate derivative feedback control algorithms and some systems cannot easily design optimal control in these two system forms. To overcome the problems, a novel state derivative space system (SDS) form is introduced. In this novel form, novel differential Lagrange multiplier should be used to adjoinSDS system constraint to the cost functional that is function of state derivative only to straightforwardly carry out optimal control design. Based on the optimal control design in SDS form, control in SDS form is developed. It showed that for descriptor systems with impulse modes, if they can be expressed in SDS form, one can easily carry outcontrol design by solving only an algebraic Riccati equation. The purpose of this research is to develop novel and simple control algorithms in SDS form so that wider ranges of problems can be solved without much of mathematics overhead.
Finding the Minimum of H Infinity Norm in Novel State Derivative Space Form
Authors: Tseng Yuan Wei
Published: August 2013

H-infinity norm is the maximum system gain and is related to the system output response. Finding the minimum of H-infinity norm is essential in control design to avoid overshoot or saturation in implementation. The fundamental of finding the minimum of H-infinity norm is based on optimal control. There are three problems that people usually have to face when they carry out optimal control designs in state space system form or descriptor system form. They are no state derivative considered in cost functional, no well-developed state derivative feedback control algorithms and some systems cannot easily design optimal control in these two system forms. To overcome the problems, a novel state derivative space system (SDS) form is introduced. In this novel form, novel differential Lagrange multiplier should be used to adjoin SDS system constraint to the cost functional that is function of state derivative only to straightforwardly carry out optimal control design. Based on the optimal control design in SDS form, the process of finding the minimum H-infinity norm in SDS form is successfully developed and verified in this paper. That process in SDS form is actually as straightforward as its counterpart in state space form. Consequently, wider ranges of problems can be solved without much of mathematics overhead.
Nanoscale Order in ZnTe:(Cd, O)
Authors: Elyukhin Vyacheslav A.
Published: August 2013

Self-assembling of 1O4Cd identical tetrahedral clusters resulting to nanoscale order in ZnTe:(Cd, O) is presented. Such co-doping transforms ZnTe into CdxZn1-xOyTe1-yalloy. The decrease of the strain energy is a cause of this phenomenon. The self-assembling conditions are obtained by the minimum condition of the free energy of ZnTe:(Cd, O) at the Cd and oxygen in the dilute and ultra dilute limits, respectively. An occurrence of 1O4Cd clusters and completion of self-assembling (all oxygen atoms are in clusters) are results of the continuous phase transitions. The temperature of the occurrence of self-assembling does not depend on the oxygen content and it is a function of Cd concentration only. CdxZn1-xOyTe1-ywith all oxygen atoms in clusters may be obtained in temperature ranges fromT= 270 °C (x= 0.002,y= 1×10-4) toT= 620 °C (x= 0.02,y= 1×10-4) and fromT= 240 °C (x= 0.005,y= 0.001) toT= 580 °C (x= 0.02,y= 0.001).
Actuation and Sensing Studies of a Miniaturized Five Fingered Robotic Hand Made with Ion Polymeric Metal Composite (IPMC)
Authors: Chatterjee Debabrata , Hanumaiah Naga , Bahramzadeh Yousef , Shahinpoor Mohsen
Published: August 2013

Nafion based IPMC (Ion Polymeric Metal Composites) has been prepared by using a tetraaquaplatinum (II) complex, [Pt (H2O)4])ClO4)2. Fabrication of a robotic mini-hand comprising five micro-fingers of 5 mm length, 400 μm width at a pitch of 600 μm has been achieved by adopting mechanicalmicro milling' technique. The micro-fingers prepared from the IPMC material were found to actuate successfully under operating voltage of 2.5 V.
Solid Dielectric Barrier in Oil Insulator under Uniform and Non-Uniform Electric Fields
Authors: Seela-Or Surapong , Tonmitra Kittipong , Kaewrawang Arkom
Published: August 2013

This paper presents the dielectric barrier (PVC, PMMA, and glass) breakdown voltage test in transformer oil in uniform field, slight non-uniform field and highly non-uniform field generated by plate-plate, plate-point, and point-point electrodes, respectively. It was found that PVC can withstand the maximum breakdown voltage that is higher than PMMA and glass. The dielectric barrier with 1 mm thick placed next to the high voltage electrode and ground electrode can withstand the higher breakdown voltage than dielectric barrier with 2 mm thick placed next to the ground electrode and at the middle of electrodes. PVC for point-point, plate-point and plate-plate electrodes can withstand the maximum breakdown voltage of 216.5, 195.7 and 181 kV, respectively. The breakdown voltage of solid insulations is different because of the shape of electrode. These results lead to design the solid insulator in transformer oil under uniform and non-uniform electric fields.
On the Ultrafast Dynamics Study of Hemin
Authors: Zhang Li Quan
Published: August 2013

This paper, through UV-vis absorption spectra of iron porphyrin chloride, fluorescence-emission spectra of NaOH and of DMSO, has obtained the properties of iron porphyrin chloride, and has made verification and comparison through molecular simulation method. Verification and comparison result coincide well, and this paper has made explanation to it.
Thermoelastic Deformations of Functionally Graded Materials Plates
Authors: Wang Ming Lu
Published: August 2013

The governing equation of thermoelastic FGM thin plates was obtained by degenerating the governing equation of thermoviscoelastic FGM thin plates. A Navier solution of a simply supported FGM rectangular plate under thermal loads was get. Based on the Navier solution, the influence of considering and ignoring mid-plane stain, due to the inhomogeneous property of the functionally graded materials, on the maximal deflection and thermal stress of the functionally graded materials thin plate is investigated.
Determination of the Matrix Element Vanadium in the Potassium Metavanadate by Inductively Coupled Plasma Atomic Emission Spectrometry
Authors: Cheng Yong , Peng Hui Xian , Yuan Jin Hong
Published: August 2013

The potassium metavanadate samples were digested by hydrochloric acid and diluted with water to a constant volume, then the inductively coupled plasma atomic emission spectrometry (ICP-OES) was used to directly determine the content of 10 to 45% matrix vanadium. The matrix effects, spectral interference, background noise and other interference factors in the high concentration of potassium ions coexistence system were all examined in the paper. The results showed that although the coexisting alkali metal potassium significantly increased the ICP flame, the 1g/L potassium standard solution did not produce peaks in the scanning window of analysis line which substantially coincide with the reagent blank signal line, i.e., the 28% (or 0.28g/L) potassium contained in the potassium metavanadate did not interfere with the determination. Therefore, only the standard solution of vanadium was used to draw a calibration curve without the need of potassium matrix matching. In order to obtain a wide linear range and improve the detection precision and the accuracy of the matrix element vanadium, the sample dilution ratio and ICP spectrometer detection parameters were optimized, and the suitable sensitivity spectral lines and their detection integral and background correction regional were selected, the detection signal intensity of the high concentration vanadium is effectively regulated moderate, the detection range is covered from 10 to 45%, which fully meet the need for determination of vanadium in the potassium metavanadate (qualified products containing 37% vanadium). The results also showed that the background equivalent concentration is less than 5 μg/L, the relative standard deviation (RSD) is less than 1.0%, the detection results consistent with the redox titration method. The method is simple and fast, accurate and reliable, the precision is high. The inspection cycle is 10 to 15 minutes, which is greatly shorter than the chemical titration that takes 2 to 3 hours, so that the method meet the requirements of fast-paced production site of the potassium metavanadate product quality inspection and control.
Investigation on Surface Degradation of Wind Turbine Blades Surface Using Modified Surface Tracking Test as Part of Lightning Protection Improvement
Authors: Sasimma Watthanapong , Suksri Amnart
Published: August 2013

This research work investigates the surface degradation of modified surface as part of wind turbine blade surface which is made from epoxy resin mixed with calcium carbonate (CaCO3) in different percentage as a filler elements. Accelerated test with AC voltage of 4.5 kV 50 Hz with a saline solution using flow rate of contaminant equals to 0.6 ml/min according to IEC 60587 standard [. It was found that ,the solid insulators which has a high percentage of calcium carbonate filler will slowdown the process of surface tracking. On the other hand, if the percentage of filler is more than 40% by weight ,it will lead to a faster tracking . In addition, researchers have tried to develop a type of surface condition by comparing the time to track between flatted and corrugated surfaces test sample. It was found that , the flatted surface can withstand the generated track than corrugated surface. Also, when the incline plane has been increased rather than 45 degrees, the breakdown process occurred slowly.
Research Based on Dependencies of Luminescent Properties of CdTe Quantum Dots with TGA as Surfactant
Authors: Wang Jigang , Wang Yong Sheng , He Da Wei , Li Shu Lei , He Jia Qi , Wu Hong Peng , Wang Hai Teng , Zhou Pan , Hall Ryan , Ma Lun , Zhang Yong Na , Chen Wei
Published: August 2013

We investigated the optical characterization of luminescent thioglycolic acid (TGA) stabilized CdTe quantum dots (CdTe-QD) synthesized in water. The influence of stabilizing agents on the luminescent properties of water-soluble CdTe quantum dots (QDs) was described. It is found that QDs can be synthesized easily when TGA is chosen as stabilizing agent and TGA leads to preparation of highly luminescent QDs due to the secondary effects of bonds between Cd2+ and sulfhydryl groups. The absorption wavelength and PL stability of TGA-CdTe are also characterized. Size can be controlled between 2.0 nm to 4.0 nm. The TGA-CdTe QDs prepared at 2 h reaction time possess excellent luminescent properties.
Regression Analysis in Energy Systems
Authors: Kuznetsov Roman , Chipulis Valeri
Published: August 2013

The methods are considered for analytical data processing by measurements in heat supply systems. These methods are oriented to the solution of practical problems in the heat-power engineering by using the information-analytical systems. The possibilities of regression analysis for effective heating control and diagnosis of the measuring equipment are shown.
Signal Simulation of the Train Integrated Positioning System
Authors: Li Wang , Wei Shang Guan , Cai Bai Gen , Wang Jian
Published: August 2013

In order to simulate the multi-sensor signals of the train integrated positioning system, and make signal fusion and verification, the train integrated positioning signal simulation system is introduced in this paper, which is based on GNSS and multi-sensor integrated positioning thoughts, the mathematical models and failure characteristics of the sensors are analyzed, the pulse speed sensor and gyro error models are established, the data simulation approach and data acquisition modules are adopted to simulate pulse speed sensor and gyroscope signals, the GNSS simulator is used to simulate GNSS signal under different scenes and conditions, signal fusion algorithms are used to conduct fusion and filtering of the integrated positioning signal. The results show the availability of the simulated signals. The train integrated positioning signal simulation system provides test environments with the parameters controllable, and lays a good foundation for the researches of the Beidou based integrated positioning system and the multi-mode satellite positioning technology.