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2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)最新文献

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Simulation of heat transfer and fluid flow in 3D porous media in non-equilibrium 非平衡状态下三维多孔介质传热与流体流动模拟
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338216
F. Habbachi, F. Oueslati, R. Bennacer, E. Afif
{"title":"Simulation of heat transfer and fluid flow in 3D porous media in non-equilibrium","authors":"F. Habbachi, F. Oueslati, R. Bennacer, E. Afif","doi":"10.1109/WSMEAP.2015.7338216","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338216","url":null,"abstract":"A study of the laminar free convection in a cubic cavity 3D partially porous media is conducted numerically. The Brinkman-Darcy model with the Boussinesq approximation is used to characterize the flow field inside the porous region, while the local thermal non-equilibrium (LTNE) model are employed for energy equations. A numerical methodology based on the finite volume method and a full multigrid technique is employed. The effects of various parameters; the thermal conductivity ratio (y) and the thickness of the porous layer (e) on the flow patterns are analyzed. The numerical outcome of the present study shows that, the non-equilibrium (LTNE) model and the thickness of porous layer (e) modifiers substantially the flow characteristics and the transfers thermal.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124260114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Create a microclimate in terms of humidity moisture canopy temperature and indoor air 在湿度、湿度、冠层温度和室内空气方面创造一个小气候
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338200
F. Sahbani, A. Chbeb, E. Ferjani
{"title":"Create a microclimate in terms of humidity moisture canopy temperature and indoor air","authors":"F. Sahbani, A. Chbeb, E. Ferjani","doi":"10.1109/WSMEAP.2015.7338200","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338200","url":null,"abstract":"Currently in Tunisia, agricultural greenhouses paramount importance since it contributes to creating a microclimate in terms of humidity, temperature, vegetation cover and air support within the needs of the plant tomato. Such greenhouses are usually designed in ways to control mainly the temperature and relative humidity inside. As an expert and researcher farm, we found that the disease of \"blight\" in crop plants in greenhouses and due to a bad compromise between temperature, relative humidity and ventilation of the greenhouse. The three parameters mentioned above are disrupted by external weather conditions but can also be affected by irrigation, evapotranspiration, etc. To establish this compromise, knowing that the greenhouse system is nonlinear, we must be aided by the identification of the system that is to say the determination of its mathematical model based on experimental observations input-output. For the output of the model is the closest to the real system within a fixed criterion, we must estimate the values of model parameters based on the input-output observations (I/O). This work is done in order to design, predict, control and simulate the greenhouse system.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116196093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative study of trajectory tracking control using sliding mode based on backstepping and feedback linearization 基于反步和反馈线性化的滑模轨迹跟踪控制的比较研究
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338215
A. Sassi, A. Abdelkrim
{"title":"Comparative study of trajectory tracking control using sliding mode based on backstepping and feedback linearization","authors":"A. Sassi, A. Abdelkrim","doi":"10.1109/WSMEAP.2015.7338215","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338215","url":null,"abstract":"In this paper, a sliding mode control based on backstepping (BSMC) and feedback linearization (FLSMC) are proposed to solve disturbances, nonlinearity and chattering problems for a class of uncertain systems in strict feedback form. Based on backstepping technique, the proposed control strategy has fast response and good disturbance rejection capability. The stability analysis of the closed-loop system is rigorously proven using a Lyapunov approach. Sliding mode control technique has been incorporated in the feedback linearized control to address the issues of uncertainty and to add robustness to the control algorithm. The effectiveness of the proposed approaches are compared against a traditional sliding mode (SMC) for position tracking control and stabilization of the uncertain nonlinear model of inverted cart pendulum.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122271572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Convective and radiative heat loss impact on CO2 emission, O2 depletion and thermal stability in a reactive slab of variable thermal conductivity 对流和辐射热损失对变导热反应板中CO2排放、O2损耗和热稳定性的影响
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338199
R. Lebelo
{"title":"Convective and radiative heat loss impact on CO2 emission, O2 depletion and thermal stability in a reactive slab of variable thermal conductivity","authors":"R. Lebelo","doi":"10.1109/WSMEAP.2015.7338199","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338199","url":null,"abstract":"The impact of convective and radiative heat loss on CO2 emission, O2 depletion and thermal stability in a reactive stockpile of combustible materials is investigated. A rectangular slab of variable thermal conductivity is applied to study the reaction taking place in a stockpile. It is assumed that the slab's surface temperature is uniform throughout. Runge-Kutta-Fehlberg (RKF45) method coupled with shooting technique is applied to solve numerically derived governing equations for heat and mass transfer problem. Nusselt and Sherwood numbers at the material surface are obtained from numerical expressions for temperature fields. Graphical expressions for O2 emission, O2 depletion and temperature behavior are obtained to study and discuss quantitatively the effects of various thermo-physical parameters on CO2, O2 and thermal stability. Thermo-physical parameters that help to reduce CO2 emission and hence O2 preservation, are identified, including those which help spontaneous combustion processes from explosions.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127033286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Neutron irradiation and annealing temperature effects of CZ-Silicon cz -硅的中子辐照和退火温度效应
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338207
Osmani Nadjet, B. Ahmed, Cheriet Abdelhak
{"title":"Neutron irradiation and annealing temperature effects of CZ-Silicon","authors":"Osmani Nadjet, B. Ahmed, Cheriet Abdelhak","doi":"10.1109/WSMEAP.2015.7338207","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338207","url":null,"abstract":"In the present work, we have irradiated p-type CZ-silicon at two different neutron fluences, 1.98 ×1018 and 3.96 ×1018 n/cm2. The optical properties and irradiation damage have been investigated using Fourier Transform Infrared spectroscopy (FTIR) and UV-VIS spectrophotometer technique at room temperature. The results show that the density of the vacancy-oxygen complex VO center (830 cm-1) increases with increasing neutron fluence. Further, the creation of the divacancy defect (1.8 μm) concentration and the near edge absorption was formed after irradiation. The results from annealing indicate that near-edge absorption, VO defects disappear at 550 °C. However, another band around 825 cm-1 was formed at the same temperature. The near-edge absorption and the band of 1.8μm have not been detected at 550 °C, and new bands near 1.4 and 1.7μm appeared. It is reasonable to assume that the two bands may be due to the divacancy consisting one or more lithium impurity atoms. The existence of these bands confirms that the transmutation of the boron to the lithium atoms can be attained in the neutron fluences available at the reactor Es Salem. It was concluded that the cluster defects induced by the neutron irradiation can be attributed to the vacancy-rich region which reordered after annealing treatment.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129787612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interaction of two plane parallel jet 两平面平行射流的相互作用
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338195
N. Hnaien, Habib Ben Aissia, S. Marzouk
{"title":"Interaction of two plane parallel jet","authors":"N. Hnaien, Habib Ben Aissia, S. Marzouk","doi":"10.1109/WSMEAP.2015.7338195","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338195","url":null,"abstract":"In the present work, a numerical simulation of two plane parallel turbulent jets was performed. The simulations were carried out by using the k-e standard, the k-w standard and the RSM models. A parametric study was also presented to determine the effect of the nozzles spacing and velocity ratio on the axial and transverse positions of the merge and combined points. Correlations between the various parameters governing this type of flow were also provided in this study.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128414863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Discrete sliding mode control of inverted pendulum 倒立摆的离散滑模控制
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338210
Ibtissem Bsili, J. Ghabi, H. Messaoud
{"title":"Discrete sliding mode control of inverted pendulum","authors":"Ibtissem Bsili, J. Ghabi, H. Messaoud","doi":"10.1109/WSMEAP.2015.7338210","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338210","url":null,"abstract":"This paper presents a treatment of variable structure discrete systems. Firstly, in order to control nonlinear single-input single-output (SISO) systems, the first sliding mode controller using the classical surface is considered. Then, a robust discrete second order sliding mode controller is investigated to overcome the effect of the chattering phenomenon. The controllers designed using the above techniques are completely insensitive to parametric uncertainty and external disturbance. This approach was simulated on the inverted pendulum system and experimental results confirm the effectiveness of the proposed control to reject disturbances.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123816013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Graphene nanoribbon modeling based on MoM-GEC method for antenna applications in the terahertz range 基于MoM-GEC方法的太赫兹天线石墨烯纳米带建模
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338201
M. Aidi, M. Hajji, B. Hamdi, T. Aguili
{"title":"Graphene nanoribbon modeling based on MoM-GEC method for antenna applications in the terahertz range","authors":"M. Aidi, M. Hajji, B. Hamdi, T. Aguili","doi":"10.1109/WSMEAP.2015.7338201","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338201","url":null,"abstract":"In this paper, we present a graphene nano-ribbon based terahertz antenna modeling using the MoM-GEC method (the moments method combined to the generalized equivalent circuit). The quantum mechanical conductivity of graphene is employed to introduce the graphene's effect in the mathematical formulation. The graphene nanoribbon is excited by a located source with unit voltage and shielded in a waveguide with electric boundaries. The obtained input impedance, current density distribution and radiated electric field are presented to discuss the antenna performance.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133331965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
VHDL-AMS for calculating the radiated field in circuit simulators 电路模拟器辐射场计算的VHDL-AMS
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338212
W. Labiedh, J. Ben Hadj Slama
{"title":"VHDL-AMS for calculating the radiated field in circuit simulators","authors":"W. Labiedh, J. Ben Hadj Slama","doi":"10.1109/WSMEAP.2015.7338212","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338212","url":null,"abstract":"In this paper, we propose to integrate the calculation of a radiated field in circuit simulators. The method is to develop a generic model of the radiated magnetic field by a Printed Circuit Board (PCB) in VHDL-AMS. From the developed model, we can calculate the radiated magnetic field for any power electronics circuit. To validate the method, we have calculated the radiated magnetic field by a rectangular loop created by the placement of four PCBs. We later compare the obtained results to those obtained by calculations using numerical methods and analytical equations of the radiated magnetic field by a rectangular loop.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123846499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Observer design for Takagi-Sugeno discrete time uncertain systems 离散时间不确定系统的观测器设计
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338208
Ali Bouyahya, Yassine Manai, Joseph Haggège
{"title":"Observer design for Takagi-Sugeno discrete time uncertain systems","authors":"Ali Bouyahya, Yassine Manai, Joseph Haggège","doi":"10.1109/WSMEAP.2015.7338208","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338208","url":null,"abstract":"This paper deals with the design of observer for discrete time uncertain systems. This observer design present a direct extension from discrete observer for Takagi-Sugeno systems. In this work two non quadratic Lyapunov functions were used. This paper show that a little change in the Lyapunov function form can give a large feasible area of solutions in term of linear matrix inequality. In addition, a stabilization condition of estimation error is given. Finally, numerical simulation is given to validate the developed approach.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128831635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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