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2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)最新文献

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Cascade of nonlinear entropy and statistics to discriminate fetal heart rates 级联的非线性熵和统计区分胎儿心率
2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2016-07-01 DOI: 10.1109/ACTEA.2016.7560130
A. Zaylaa, Soha Saleh, F. Karameh, Ziad Nahas, A. Bouakaz
{"title":"Cascade of nonlinear entropy and statistics to discriminate fetal heart rates","authors":"A. Zaylaa, Soha Saleh, F. Karameh, Ziad Nahas, A. Bouakaz","doi":"10.1109/ACTEA.2016.7560130","DOIUrl":"https://doi.org/10.1109/ACTEA.2016.7560130","url":null,"abstract":"Fetal heart rate discrimination is an evolving field in biomedical engineering with many efforts dedicated to avoid preterm deliveries by way of improving fetus monitoring methods and devices. Entropy analysis is a nonlinear signal analysis technique that has been progressively developed to improve the discriminability of a several physiological signals, with Kernel based entropy parameters (KBEPs) found advantageous over standard techniques. This study is the first to apply KBEPs to analyze fetal heart rates. Specifically, it explores the usability of the cutting-edge nonlinear KBEPs in discriminating between healthy fetuses and fetuses under distress. The database used in this study comprises 50 healthy and 50 distressed fetal heart rate signals with severe intrauterine growth restriction. The Cascade analysis investigates six kernel based entropy measures on fetal heart rates discrimination, and compares them to four standard entropies. The study presents a statistical evaluation of the discrimination power of each parameter (paired t-test statistics and distribution spread). Simulation results showed that the distribution ranges in 80% of the entropy parameters in the distressed heart group are higher than those in the healthy control group. Moreover, the results show that it is advantageous to choose Circular entropy then Cauchy entropy (p <; 0.001) over the standard techniques, in order to discriminate fetal heart rates.","PeriodicalId":220936,"journal":{"name":"2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125676335","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
Poroelastic properties identification through micro indentation modeled by using the proper generalized decomposition 采用适当的广义分解方法建立微压痕孔隙弹性特性识别模型
2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2016-07-01 DOI: 10.1109/ACTEA.2016.7560128
C. Ghnatios, C. Mathis, F. Chinesta
{"title":"Poroelastic properties identification through micro indentation modeled by using the proper generalized decomposition","authors":"C. Ghnatios, C. Mathis, F. Chinesta","doi":"10.1109/ACTEA.2016.7560128","DOIUrl":"https://doi.org/10.1109/ACTEA.2016.7560128","url":null,"abstract":"Recently, articular cartilage are being intensively studied to be able to understand their properties and mechanical behavior, in order to be able to create effective replacements. However, these structures are complex and their behavior is not effectively modeled yet. In fact cartilage is a biphasic structure and its interstitial fluid pressurization is the main load bearing phenomenon as well as the main lubricant of the structure. Hertzian rate-controlled micro indentation is one of the common experiments that can be used to identify material properties by comparing to the simulated models. In this work we propose to simulate the micro indentation of cartilage by using a simplified mechanical model combined with the use of the proper generalized decomposition to compute the fluid pressure inside the cartilage calcium tissues.","PeriodicalId":220936,"journal":{"name":"2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133423060","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
Proactive channel allocation for multimedia applications over CSMA/CA-based CRNs 基于CSMA/ ca的crn上多媒体应用的主动信道分配
2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2016-07-01 DOI: 10.1109/ACTEA.2016.7560135
Raghid Morcel, Hadi Sarieddeen, I. Elhajj, A. Kayssi, A. Chehab
{"title":"Proactive channel allocation for multimedia applications over CSMA/CA-based CRNs","authors":"Raghid Morcel, Hadi Sarieddeen, I. Elhajj, A. Kayssi, A. Chehab","doi":"10.1109/ACTEA.2016.7560135","DOIUrl":"https://doi.org/10.1109/ACTEA.2016.7560135","url":null,"abstract":"Aiming at an efficient use of the channels available in the wireless spectrum, cognitive radio networks (CRNs) allow users to adapt to the environment by reusing the existing spectrum. A secondary (unlicensed) user (SU) is allowed to operate in the licensed band of the primary user (PU) after sensing the spectrum and making sure that it would not interfere with it. Normally, a SU transmits over spectrum holes, and when a PU wants to switch on to her channel, the SU gets hanged and her transmission stops. Such a network alters the seamless communication and raises challenges regarding the transmission of delay-sensitive traffic like multimedia. In this paper, a new algorithm that adds a proactive behavior for channel allocation at the medium access control (MAC) layer is proposed: Before hopping into a licensed channel (LC), the SU reserves her unlicensed channel (UC) for a token time (TT), such that if a PU reclaims her LC within this time, the SU can hop back into her previous channel seamlessly. The value of TT was varied, and the effect of this variation showed favorable results on delay and jitter.","PeriodicalId":220936,"journal":{"name":"2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127541963","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
Modeling and simulating a PWP cell for the electric characterization of space dielectric materials 空间介质材料电学特性的PWP电池建模与仿真
2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2016-07-01 DOI: 10.1109/ACTEA.2016.7560124
M. Arnaout, K. Chahine, Wassim Salameh
{"title":"Modeling and simulating a PWP cell for the electric characterization of space dielectric materials","authors":"M. Arnaout, K. Chahine, Wassim Salameh","doi":"10.1109/ACTEA.2016.7560124","DOIUrl":"https://doi.org/10.1109/ACTEA.2016.7560124","url":null,"abstract":"The aim of this paper is to simulate the pressure wave propagation method (PWP) for studying the charge profile of irradiated insulators. This can be achieved through developing a specialized model for this method using COMSOL-multiphysics. COMSOL solves the system of partial differential equations using the finite element method in non-stationary conditions where we will focus on a one-dimensional system.","PeriodicalId":220936,"journal":{"name":"2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124330999","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
Semi-analytical model for the mechanical behavior of a spinning viscoelastic layer under gravity loads 重力载荷作用下自旋粘弹性层力学行为的半解析模型
2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2016-07-01 DOI: 10.1109/ACTEA.2016.7560125
Gérard-Philippe Zéhil
{"title":"Semi-analytical model for the mechanical behavior of a spinning viscoelastic layer under gravity loads","authors":"Gérard-Philippe Zéhil","doi":"10.1109/ACTEA.2016.7560125","DOIUrl":"https://doi.org/10.1109/ACTEA.2016.7560125","url":null,"abstract":"Recent works have proposed novel semi-analytical computational methods to model the viscoelastic rolling behavior of objects such as cylinders and spheres, including rolling resistance. This paper introduces and applies an extension of such methods to model the steady-state spinning behavior of a circular viscoelastic coating under the effect of gravity. The proposed modeling technique is wide-ranging in that it can accommodate any linear viscoelastic material characterized by its most general frequency-domain master-curves. The results of the model reveal that the mechanical behavior of the spinning viscoelastic coating is significantly different from that of a similar coating with purely elastic properties. The method can potentially be applied to characterize viscoelastic materials from either laboratory or field measurements. It could also be used to study the behavior of precision measurement devices and propellant grains under gravitational loads, or to model very large scale phenomena such as the tidal locking of celestial bodies.","PeriodicalId":220936,"journal":{"name":"2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130712873","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
Simulating the effect of ultrasonic ranging errors on parallel parking performance 模拟超声波测距误差对平行泊车性能的影响
2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2016-07-01 DOI: 10.1109/ACTEA.2016.7560123
Rohit Garg, Gabriele S. Zanardo, Roman Schmied, L. Re
{"title":"Simulating the effect of ultrasonic ranging errors on parallel parking performance","authors":"Rohit Garg, Gabriele S. Zanardo, Roman Schmied, L. Re","doi":"10.1109/ACTEA.2016.7560123","DOIUrl":"https://doi.org/10.1109/ACTEA.2016.7560123","url":null,"abstract":"This paper investigates the effect of sensor errors on the parallel parking performance of an intelligent park assist system. A path planning algorithm has been employed for generating a trajectory that maneuvers the car into the empty space in one trial. Different control schemes have been implemented for lateral steering control of the vehicle to track the trajectory generated by the planning algorithm. The control schemes include different combinations of PD and non-linear control. All simulations are carried out within the IPG CarMaker® and Simulink® environments. Positioning and sensor errors are modeled in the simulation environment and are applied to an ideal ultrasonic sensor module from CarMaker. Multiple parallel park simulations are run and the effect of these errors on the parking performance is shown with respect to the different control schemes employed.","PeriodicalId":220936,"journal":{"name":"2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131613105","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
Simulation and optimization of HEMTs hemt的仿真与优化
2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2011-02-20 DOI: 10.1109/ACTEA.2016.7560101
H. Ilatikhameneh, R. Ashrafi, S. Khorasani
{"title":"Simulation and optimization of HEMTs","authors":"H. Ilatikhameneh, R. Ashrafi, S. Khorasani","doi":"10.1109/ACTEA.2016.7560101","DOIUrl":"https://doi.org/10.1109/ACTEA.2016.7560101","url":null,"abstract":"We have developed a simulation system for nanoscale high-electron mobility transistors, in which the self-consistent solution of Poisson and Schrödinger equations is obtained with the finite element method. We solve the exact set of nonlinear differential equations to obtain electron wave function, electric potential distribution, electron density, Fermi surface energy and current density distribution in the whole body of the device. For more precision, local dependence of carrier mobility on the electric field distribution is considered. We furthermore compare the simulation to a recent experimental measurement and observe perfect agreement. We also propose a novel graded channel design, for the first time, to improve the transconductance and the threshold frequency of the device.","PeriodicalId":220936,"journal":{"name":"2016 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125870477","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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