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检索条件"任意字段=2012 2nd International Conference on Computer Application and System Modeling, ICCASM 2012"

共 812 条记录，以下是301-310 订阅

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The computer Calibration modeling of Radial Distortion Based Weld system with Parallel Planes

引用

2nd international conference on Advanced Material Research (ICAMR 2012)

作者： Peng, Peng Shenzhen Polytech Sch Automot & Transportat Engn Shenzhen Peoples R China

ISBN: (纸本)9783037853634

The paper illuminates the designed automatic weld control system. The RAC calibration arithmetic considering radial distortion is introduced, and according to the actual conditions of this weld system, the inchoate rapid calibration arithmetic is designed. Finally combined with the precision characteristic of the non-linear RAC calibration arithmetic and the concision characteristic of the inchoate rapid arithmetic, the improved automatic calibration arithmetic with six parameters is proposed, which achieves satisfied result.

关键词： automatic weld control system RAC calibration inchoate rapid calibration improved calibration considering radial distortion

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application of 23 factorial design experiments for gas tungsten arc welding parameters on ASTM A36 steel welds

Application of 23 factorial design experiments for gas tungs...

引用

2nd international conference on computer-Aided Design, Manufacturing, modeling and Simulation, CDMMS 2012

作者： Peasura, Prachya Department of Production Technology Education Faculty of Industrial Education and Technology King Mongkut's University of Technology Thonburi Thongkru Bangkok 10140 Thailand

ISBN: (纸本)9783037855409

ASTM A36 carbon steel is the most commonly available of the hot-rolled steels. This specification covers carbon steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of bridges and buildings, and for general structural purposes. The research was to study the in effected of gas tungsten arc welding parameters which effects the hardness and physical characteristics of welding for carbon steel ASTM A36. The specimen was carbon steel sheet metal 6 mm thick. The 23 factors experiment was used polarity direct current electrode negative (DCEN) and alternating current (AC), welding current at 90 and100 amperes with tungsten electrode angles at 30 and 60degree. The weld sample was test by hardness and penetration. The result showed that polarity, welding current and tungsten electrode angle had on interaction on hardness and penetration at 95% confidence (p-value < 0.05).The factors made maximum hardness was polarity AC, welding current 100 amp. and tungsten angle 60° of 803.16 HV. The factors made maximum penetration was polarity DCEN, welding current 100 amp. and tungsten angle 60° of 2.71mm. The research data can be used to determine the appropriate gas tungsten arc welding process of carbon steel weld. © (2013) Trans Tech Publications, Switzerland.

关键词： Hardness

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A 3S based practice towards precision farming in China

A 3S based practice towards precision farming in China

引用

2012 2nd international conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2012

作者： Zhou, Fang Qi, Qingwen Institute of Geographic Sciences and Natural Resource Research CAS Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Resources and Environmental Information System Beijing 100101 China

ISBN: (纸本)9781467308731

Supported by the 3S technology, precision farming can intensively and accurately make and adjust its strategy in crop management. This requires us to establish the rule of space division at the very beginning. In this paper, we, creatively, divide the basic units of farming database into three groups - cooperative base agriculture units, establishment agriculture units and natural farmland parcel units. Accordingly, a technological process is proposed to build this farming database. Afterwards, a relevant WebGIS service system is developed as an application case of this farming database. Consequently, the technological process in this paper accepts little restriction from the existing agricultural management system and is easy to expand to other farming area in China. © 2012 IEEE.

关键词： Database systems

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The use of graph matching algorithms to identify biochemical substructures in synthetic chemical compounds: application to metabolomics

The use of graph matching algorithms to identify biochemical...

引用

2012 IEEE 2nd international conference on Computational Advances in Bio and Medical Sciences, ICCABS 2012

作者： Hamdalla, Mai Grant, David Mandoiu, Ion Hill, Dennis Rajasekaran, Sanguthevar Ammar, Reda Computer Science and Engineering Department University of Connecticut CT United States Pharmaceutical Sciences Department University of Connecticut CT United States

ISBN: (纸本)9781467313216

Metabolomics is a rapidly growing field studying the small-molecule metabolite profile of a biological organism. Studying metabolism has a potential to contribute to biomedical research as well as drug discovery. One of the current challenges in metabolomics is the identification of unknown metabolites as existing chemical databases are incomplete. We present a novel way of utilizing known mammalian metabolites in an effort to identify unknown ones. The system relies on a mammalian scaffolds database to aid the classification process. The results show that 96% of the mammalian compounds were identified as truly mammalian in a leave-one-out experiment. The system was also tested with a random set of synthetic compounds, downloaded from ChemBridge and ChemSynthesis databases. The system was able to eliminate 54% of the set, leaving 46% of the compounds as potentially unknown mammalian metabolites. © 2012 IEEE.

关键词： Mass spectrometry

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OPN-Ont: Object Petri Nets Ontology tool

OPN-Ont: Object Petri Nets Ontology tool

引用

2nd international conference on Simulation and modeling Methodologies, Technologies and applications, SIMULTECH 2012

作者： Dib, Lynda Bousetouane, Fouad LASE- LAboratoire des Systèmes Embarqués Computer Science Department Badji Mokhtar University Annaba Algeria

ISBN: (纸本)9789898565204

Ontologies are being used nowadays in many areas, including software engineering, business, and biology, to evaluate their suitability for representing and simulating domain processes. To assist users in developing and maintaining ontologies a number of tools have been developed. The representation of knowledge bases and conceptual domain models, hierarchical process, the structural components that participate in the process and the roles that they play in a complex domain, is therefore a major challenge for computer scientists for this complex domain. Without aiming at exhaustiveness, our study combining ontology and Petri Nets (PNs) tries to identify some promising tracks in this area, which seems a rather interesting alternative in the optics of the expressive power of the deductive representations. The context of our work consists to develop a graphical knowledge model for complex domain. This paper presents the OPN-Ont (Object Petri Nets Ontology) model. In this system ontology is represented in the PNs format, which allows verification of formal properties and qualitative and quantitative simulation. It leads to represent and exploit the different ontological components: concepts, relations and requests. The illustration of our model is made in biological domain where process supports methods for qualitative and quantitative reasoning.

关键词： Ontology

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Compensation of Hydraulic Drag for an Underwater Manipulator Using a Real-Time SPH Fluid Simulator: application in a Master-Slave Tele-operation

Compensation of Hydraulic Drag for an Underwater Manipulator...

引用

2nd international Congress on computer applications and Computational Science (CACS 2011)

作者： Zhao, Haoyi Kawai, Masayuki Univ Fukui Fukui 910 Japan

ISBN: (纸本)9783642283130

This paper discusses a control method of a tele-operation system for an underwater manipulator robot. Since fluid drag affects the dynamics of the underwater manipulator and degrades the accuracy of the control, it is necessary to decrease the influence of water. Generally, in order to compensate the fluid drag, theoretical approaches are used, but the applications are restricted by the simple modeling of the robot. Instead, we adopt a method to compensate the drag using a real-time fluid simulation. By using the simulation, the method can be applied to a robot with a complicated shape. For the method, we develop a real-time fluid simulator using smoothed particle hydrodynamics. The simulator calculates the fluid drag with the position of the underwater manipulator, and the drag is fed back to the controller to eliminate the real fluid drag. Finally, experiments have been performed to evaluate the effectiveness of the proposed method.

关键词： Drag

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Research on the smart home system based on IOT

Research on the smart home system based on IOT

引用

2012 2nd international conference on Key Engineering Materials, ICKEM 2012

作者： She, Minghong Yang, Hongbing She, Mingying Department of Computer Application Chongqing College of Electronic Engineering China Section of Teaching Affairs Sichuan University for Nationalities China Department of Economics and Management Sichuan University for Nationalities China

ISBN: (纸本)9783037853825

With the rapid development of information technology, people's daily life becomes more and more dependent on it. Yet traditional controlling algorithm is too rough to satisfy the requirement of living convenience. To overcome this shortcoming, the technology of IOT is introduced to the control process of smart home. The structure and working process are described in detail. The intelligent controlling algorithm based on D-S Evidence theory is introduced and the simulation experiment for lighting control is described, the result has perfectly validate the validity of the algorithm described. © (2012) Trans Tech Publications.

关键词： Intelligent control

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A new tool to model physical system: application to the powered gait orthosis system for hemiplegic patients

A new tool to model physical system: Application to the powe...

引用

24th IASTED international conference on Modelling and Simulation, MS 2013

作者： Nguyen, Trung Komeda, Takashi Miyoshi, Tasuku Ota, Leo Dept. of Bioscience and Engineering Shibaura Institute of Technology Saitama Japan Dept. of Mechanical Engineering Iwate University Morioka Japan Dept. of Computational Intelligence and Systems Science Tokyo Institute of Technology Yokohama Japan

ISBN: (纸本)9780889869561

modeling and simulating physical systems have given a lot of conveniences for researchers. The purpose of this work is to introduce a new physical modeling tool in Mat-lab/Simulink R2012b: 2nd Generation of SimMechanics in Simscape tool, and apply to build as well as to control a Biomechanical system: a powered gait training system designed for hemiplegic patients. Firstly, a brief introduction about Simscape and 2nd Generation in SimMechanics was shown. After that, in order to show a practical application of this tool, the process of building and converting the model of the powered gait system for hemiplegia patients from 3D software Inventor model to SimMechanics 2nd Generation was described. In addition, the modeled system is also controlled and made comparison the received results between using classical PID control and artificial intelligence Fuzzy Logic Control (FLC) method. The results showed that we could build a good physical model by using this new tool. Besides, the simulated results also characterized that FLC controller has the better performance compared to PID control method in term of response, disturbance rejection.

关键词： Controllers

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Technology of QoS Evaluation Based Grey system Theory

Technology of QoS Evaluation Based Grey System Theory

引用

2nd international conference on computer Science and Network Technology (ICCSNT)

作者： ZhangGuoping Qin Longlong Wang Ningbo Chian Univ Petr Coll Comp & Commun Engn Qingdao 266580 Peoples R China

ISBN: (纸本)9781467329644;9781467329637

Grey system theory is a new method that studies less data, poor information uncertainty problems. Grey system theory, with "small sample" of which "partial information is known, some of the information is unknown" and "poor information" uncertainty system as the research object, mainly through the generation and development of "partial" known information, extracts valuable information and realizes the correct description and effective monitoring of the system operation behavior and the evolution law. At present in the research of the Web Service Composition indicator information of each service is obtained by the mining for the execution log and statistical analysis. But, due to the high degree of autonomy of Web services, the historical data of QoS indicator generally has no features of mass and completeness, and instead embodies small sample, incomplete, short timing characteristics etc. At the same time weight is vulnerable to anthropogenic factors and difficult to accurately define. So the gray system theory provides the feasibility of eliminating weight evaluation. With the gray system theory, application of grey prediction and grey relational analysis, preliminary studies service-oriented selected QoS evaluation method.

关键词： grey system theory service composition service selection grey prediction grey relational analysis QoS evaluation

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Frequency and Angle Measurement system Based on Monobit Receiver

Frequency and Angle Measurement System Based on Monobit Rece...

引用

2nd international conference on Multimedia and Signal Processing (CMSP 2012)

作者： Zhang, Xiuqing Meng, Zhiyong An, Guochen Institute of Information Science and Engineering Hebei University of Science and Technology Shijiazhuang China

ISBN: (纸本)9783642352850

Receiver based on single-bit multi-target frequency measurement, the finding algorithm frequency measurement performance in different circumstances (such as the number of data bits, the number of samples, etc.), by constructing a simulation system, a large number of simulation and performance analysis. The different measured to the accuracy of the system and finding a large number of simulation and performance analysis. The final single-bit receiver by studying the practical application of the project is given reasonable suggestions given to improve the measurement accuracy improvement measures.

关键词： Single-bit Receiver Frequency Measurement Simulation system multi-target

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