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3rd International Conference on Green Power, Materials and Manufacturing Technology and Applications

作者： Chang Juan Zhang Jianhua Zhang Dianji Liu Zhigang Wuhan Univ Technol Sch Resources & Environm Engn Wuhan 430070 Peoples R China Wuhan Inst Technol Sch Environm & Civil Engn Wuhan 430073 Peoples R China Henen Polytech Univ Key Lab Mine Informatizat Jiaozuo 454000 Peoples R China

ISBN: (纸本)9783037859865

In this paper, we use the software of ANSYS and matlab to do research on early computer warning system. ANSYS can check the intensity of early warning system, and matlab can realize the visual function of warning system. In this paper we established the process model of ANSYS intensity checking, and designed the calculation process of order flow. We use the disaster warning when opencast mining to underground mining as an example to verify the model and the algorithm. Through the calculation we get the correlation table between calculated and measured value. Finally we get the biggest stress nephogram of chamber center by using ANSYS software, and through the matlab software we realized visualization of surrounding rock stress. It provides the theoretical reference for the research on computer warning system in mining process. With the development of computer hardware and software technology, computer information early warning system begins to appear in many engineering fields. This system can carry on security issues of real-time detection and warning in the process of project implementation, and through the visualization software to display this information.

关键词： ANSYS Software matlab programming Mining Process Computer Warning Information System Stress Nephogram

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Software development for prediction of the weld bead in CMT and pulsed-MAG processes

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INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 2013年第1-4期64卷 171-178页

作者： Meco, Sonia Pardal, Goncalo Eder, Alexander Quintino, L. IST UTL Inst Super Tecn P-1200 Lisbon Portugal Fronius Int GmbH A-4600 Wels Thalheim Austria

Prediction of weld bead shapes prior to welding has been a challenge for researchers in recent years. The assurance of a weld shape with adequate penetration and dilution, good wetting angles and no undercuts leads to less repairing and reworking and thus, lower cost and time consumed. CMT is a variant of MIG/MAG welding process recently introduced in the market. Software control for bead-shape prediction helps the user to get familiar with this modern technology. In the present paper, two approaches were undertaken for software development. These were applied to CMT and pulsed-MAG welding and the results were compared. The graphical interface was built to help the user choose the welding parameters and get the representation of the weld bead profile. The two approaches used to predict the weld bead profiles are neural networks and interpolation method. The data entries for the two different methods are: welding process (CMT and MAG-pulsed), plate thickness, travel speed and wire feed speed. The output data is the complete welding profile defined by X and Y coordinates of the points on the welding profile. The neural networks were trained with different numbers of neurons, multiple layers and different networks, and welding data bases with different structures were used, in order to find the best fitting neural network. The final results for each method were checked against real profiles and it was concluded that the neural network method was more flexible and the accuracy of each methods was nearly the same.

关键词： Welding CMT(cold metal transfer) MIG/MAG (metal inert/active gas) Pulsed matlab programming Neural networks Interpolation

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The Design and Kinematic Simulation of the Return System in Ball Screw Pairs Used in Special Circumstance

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2nd International Conference on Industrial Design and Mechanics Power (ICIDMP 2013)

作者： Zhao Guoping Fan Yuanxun Yang Feng Li Liyi Harbin Inst Technol Sch Elect Engn Harbin 150001 Peoples R China Nanjing Univ Sci & Technol Sch Mech Engn Nanjing 210094 Peoples R China

ISBN: (纸本)9783037858967

Base on analyzing the design demand of the return system in the ball screws, combining the sine curve and the quintic parabola curve, this paper introduces a new type of curve for steel balls used in heavy load bearings. By computing and programming in matlab, this paper gets the sine-quintic parabola curve and conducts the kinematic simulation based on it. The results show that the balls can get in and out of the return system continuously and cause low impulse force on the return system. The highest impulse force happens when the balls access the return system. All this results can contribute for the later design and research of the internal circulation return system. The internal circulation is widely used in the ball screw pairs under aerospace systems with a compact structure. In this circumstance, the ball screw pairs are in motion in short time and overload, so the return system is a key part in the whole system. Whether the return system is designed logically and manufactured well directly determines the reliability of the ball screw pairs, and its failure will cause serious results.

关键词： return system curve for the steel balls matlab programming kinematic simulation

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Effect of Physical Parameters on Thermal Performance of Glazed Transpired Collector with Slit-like Perforation

Effect of Physical Parameters on Thermal Performance of Glaz...

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Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Li, Chao Li, Xianli You, Shijun Ji, Min Tianjin Univ Sch Environm Sci & Technol Tianjin 300072 Peoples R China Tianjin Inst Urban Construct Energy Technol & Mech Engn Dept Tianjin Peoples R China

ISBN: (纸本)9781457705472;9781457705465

A glazed transpired collector with slit-like perforation was proposed in the paper, which improved corrective heat transfer coefficient without influence on collector area. Physical parameters on its thermal performance was studied by numerical simulation (matlab programming) and experimental research. Comparing simulated values to tested values of air outlet temperature, there's little difference, proving that the mathematical model was correct and could be used to in-depth study. Taking collected heat and air outlet temperature as evaluation indexes, simulation results showed that larger value of absorptivity of absorber outer surface was better for collector thermal performance, and lower values of emittance of cover outer surface and equivalent diameter was better for collector thermal performance.

关键词： glazed transpired collector with slit-like perforation matlab programming thermal performance

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Ant Colony Algorithm for Solving Rules Samples in Rules Raw Materials Typesetting Problem

Ant Colony Algorithm for Solving Rules Samples in Rules Raw ...

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2012上海纺织服装创意设计研究生学术论坛

作者： Peng Xu Jian-Xin Qiu Shanghai University of Engineering Science

In the clothing manufacturing and leather production industries,the rules samples in Rules raw materials typesetting problem is a very important links in the process of *** to use the high efficiency of the layout is not only the key to improve the utilization rate of raw material,but also it is the key to reduce the production *** paper analyzed the current research status of typesetting algorithm, and established the mathematical model of the Rules samples in Rules raw materials typesetting problem. We used the matlab2010a platform,the ant colony algorithm matlab programming,and the ant colony algorithm was *** final experimental results showed that the use of ant colony algorithm to solve the rules of samples on the rules of master sample was feasible.

关键词： rules layout layout algorithm matlab programming ant colony algorithm

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An agent-based simulation model of a nutrient trading market for natural resources management

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MATHEMATICAL AND COMPUTER MODELLING 2011年第3-4期54卷 987-994页

作者： Zhu, Xiang Li, Daoliang Rodriguez, Luis F. China Agr Univ Coll Informat & Elect Engn Beijing Peoples R China Univ Illinois Dept Agr & Biol Engn Urbana IL USA

Markets for nutrient trading, water quality and other ecosystem services are rapidly emerging across the world. A critical need is to improve the relationship between farmers' decisions and their impact on natural resources. One of the basic requirements that links buyers and sellers of ecosystem services is an agreed upon unit of trade and a way to measure it. We develop an agent-based model (ABM) which is designed to formalize the interactions between the biophysics dynamics of the natural resources and the socioeconomic factors. The simulation market builds on ABM paradigms in its concepts and is coded using the matlab programming environment. The result shows that ABM is contributing to research questions in ecological economics areas of land-use change, public auction modeling, market dynamics, changes in owners' perceived yield potential, owners' gold, farming choice and water treatment choice aspects in human decision making and behavior change. (C) 2010 Elsevier Ltd. All rights reserved.

关键词： Agent-based model Nutrient trading market Nature resources management matlab programming

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The study of Combination Model Forecasting of Dynamic Traffic Volumes based on matlab

The study of Combination Model Forecasting of Dynamic Traffi...

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International Academic Conference on Machinery, Materials Science and Engineering Applications

作者： Sun Qian Ding Wei-Dong Liu Han-Li Du Sheng-Pin Wuhan Univ Sci & Technol Transportat Inst Wuhan 430081 Peoples R China

ISBN: (纸本)9783037851111

The most important part of ITS (Intelligent Technology System) is the forecasting of dynamic traffic information reporting in a timely manner. Based on the results of past empirical studies, this article is presenting and analyzing two models based on Grey Theory and the BP (Back propagation) Neural Network. In accordance with the advantages and disadvantages of these two models, we established a new combination model. This article also presents the calculation of dynamic traffic stream volumes based on the application of two models (Grey Theory and BP Neutral Network).The results predicted an increase in the overall prediction accuracy of road traffic volume.

关键词： ITS Dynamic Volumes Forecast Grey-BP Combination Forecasting Model matlab programming

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Design of GSM Based Auto-responder for Educational Institute

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International Conference on Advances in Computing, Communication and Control (ICAC3)

作者： Vyas, D. D. Pandya, H. N. Darshan Inst Engg & Tech Dept Elect & Commun Engg Rajkot 360001 Gujarat India Saurashtra Univ Dept Elect Rajkot 360 005 Gujarat India

ISBN: (纸本)9783642184390

Remote access of data using off-the-shelf technologies like internet and GSM/GPRS, is one of the fast growing application areas in industries, customer services, banking, entertainment services etc. This paper presents design and implementation of an auto-responder for educational institute. The design is based on GSM Short Message Service and is used for remote access to data related to examination, results and student's attendance to be accessed by students or any stack holder, at their own wish. The complete application software, including database management, GSM communication and interactive GUI, is designed in matlab. The application provides a good example of the use of Information and Communication Technology (ICT) and illustrates how low cost off-the-shelf technologies like GSM can be meaningfully used for remote data access.

关键词： GSM applications Short Message Service (SMS) auto-responder remote data access matlab programming

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A novel analysis of grapevine berry tissue demonstrates a variety-dependent correlation between tissue vitality and berry shrivel

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AUSTRALIAN JOURNAL OF GRAPE AND WINE RESEARCH 2010年第2期16卷 327-336页

作者： Fuentes, S. Sullivan, W. Tilbrook, J. Tyerman, S. Univ Adelaide Sch Agr Food & Wine Adelaide SA 5064 Australia

Background and Aims: For Vitis vinifera L. berries late in ripening, varietal differences have been found in tissue vitality and water relations linked to berry shrivel. Berry shrivel impacts on quality attributes. Here we quantified berry tissue vitality and shrivel across a broader range of varieties. Methods and Results: Berries from 22 varieties (similar degrees Brix at harvest maturity) were sectioned longitudinally at the centre and stained to measure tissue vitality and morphology. An analysis tool using matlab (R) R2008a (The Mathworks, Inc, Natick, MA, USA) quantified vitality and morphology, from which a shrivel index was developed. There was a correlation between shrivel and vitality across all varieties, such that greater vitality was associated with less shrivel. Similar within-variety correlations occurred for some varieties. Three clusters were identified across the varieties that reflected different degrees of tissue vitality and shrivel. Patterns of tissue vitality within the berry were also identified that appeared to differentiate between white and red winegrape varieties. Conclusion: Tissue vitality and shrivel indices separated varieties into distinct clusters that indicates mechanistic differences in the way cell vitality in the mesocarp is linked to berry water relations. Significance of the Study: Cell death before harvest may impact on berry quality. Tools to identify the onset of cell death and shrivel may allow more refined measures of quality and maturity assessment.

关键词： berry shrivel cell vitality grapevine varieties image analysis matlab programming mesocarp vitality

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matlab PROCEDURES FOR NUMERICAL SOLUTION OF FIRST ORDER DIFFERENTIAL SYSTEMS AND HIGH-ORDER DIFFERENTIAL EQUATIONS

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METALURGIA INTERNATIONAL 2010年第8期15卷 91-96页

作者： Lepadatu, Dumitru V. Tech Univ Gh Assachi Iasi Romania

In this paper it shows how can be obtained the numerical solution of the first differential system and high-order differential equation using the matlab programming system. We present the equivalence between system an... 详细信息

关键词： matlab programming differential system high-order differential equation numerical solution

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