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2018 4th International Conference on Optimization and Applications (ICOA)最新文献

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A small printed antenna with circular slot for European UHF RFID reader devices 一个小型印刷天线与圆形槽欧洲UHF RFID阅读器设备
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/icoa.2018.8370531
Yassine Gmih, Younes El Hachimi, El Mostafa Makroum, A. Farchi
{"title":"A small printed antenna with circular slot for European UHF RFID reader devices","authors":"Yassine Gmih, Younes El Hachimi, El Mostafa Makroum, A. Farchi","doi":"10.1109/icoa.2018.8370531","DOIUrl":"https://doi.org/10.1109/icoa.2018.8370531","url":null,"abstract":"In this paper, a small patch antenna is designed for ultrahigh frequency (UHF) radio frequency identification (RFID) reader applications in European band. This antenna is composed of an L-shaped strip monopole line, in addition, three rectangular strip line inserted into the circular slot in the ground plane. The simulated impedance bandwidth of the proposed structure is 59 MHz and extends from 841 to 900 MHz, centered at 867.5 MHz. The radiation pattern is a bidirectional pattern with a maximum antenna gain of 2.91 dB. The overall size of the antenna is 80 × 80 × 1.6 mm3 and printed on an FR4 substrate with dielectric permittivity constant 4.3, thickness of 1.6 mm and loss tangent of 0.02. The simulation was performed in electromagnetic solvers CST Microwave Studio and High-Frequency Structure Simulator Software (HFSS).","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116623423","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
Time and frequency parameters of sEMG signal — Force relationship 表面肌电信号-力关系的时间和频率参数
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370547
Achmamad Abdelouahad, Abdelali Belkhou, A. Jbari, L. Bellarbi
{"title":"Time and frequency parameters of sEMG signal — Force relationship","authors":"Achmamad Abdelouahad, Abdelali Belkhou, A. Jbari, L. Bellarbi","doi":"10.1109/ICOA.2018.8370547","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370547","url":null,"abstract":"This paper shows that time and frequency domains may be used to evaluate force of skeletal muscle. The surface electromyography sEMG can be used to quantify force level of the muscle contraction. The main objective of this work is the study of the relationship between different features of sEMG signal and force level of contraction. The most popular time and frequency parameters extracted from sEMG signal are root mean square (RMS), mean absolute value (MAV), median frequency (MDF) and mean power frequency (MPF). The results of the experiment showed an increasing in time domain parameters values and a decreasing in frequency domain parameters values during four successive contractions significantly with the increasing in force level contraction. Furthermore, the sensitivity is calculated for each parameters. (RMS) and (MPF) have been selected as the best features to evaluate muscle force.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123456690","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: 15
Lean manufacturing for handicraft production: A new production system to enhance productivity and competitiveness of craft enterprise 手工艺生产的精益制造:一种提高手工艺企业生产率和竞争力的新型生产体系
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370562
Fatine Chouiraf, A. Chafi
{"title":"Lean manufacturing for handicraft production: A new production system to enhance productivity and competitiveness of craft enterprise","authors":"Fatine Chouiraf, A. Chafi","doi":"10.1109/ICOA.2018.8370562","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370562","url":null,"abstract":"Handicrafts plays an important socio-economic role for Morocco. It contributes 9% to GDP and 20% to employment. Nevertheless, its productivity remains lower in comparison with that of other countries. This benchmarking informs us about the importance of savings deposits that the sector can make by improving its productivity. For this, it is necessary that the employees are qualified, flow management is reliable and the production management system is good. The integration of lean manufacturing in the organization of craft enterprises would contribute to this improvement. Lean is a Japanese approach to production management, based on the elimination of wastes “mudas”. Lean and craft production share some objectives, namely production in small series, unitary production and the pull business model. In this article, we present the tools can be useful for craft entreprise to improve their productivity and enhance their competitiveness.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124968945","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: 6
Toward a distributed strategy for emergency ambulance routing problem 紧急救护路径问题的分布式策略研究
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370582
Elgarej Mouhcine, Yassine Karouani, K. Mansouri, Youssfi Mohamed
{"title":"Toward a distributed strategy for emergency ambulance routing problem","authors":"Elgarej Mouhcine, Yassine Karouani, K. Mansouri, Youssfi Mohamed","doi":"10.1109/ICOA.2018.8370582","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370582","url":null,"abstract":"The optimal routing problem has always been the main event of city emergency rescue. Its research object has developed from searching for “the shortest route” to searching “the optimal route”. The related algorithms and techniques differ in different situations. In addition to distance problem, the influence of various parameters factors should also be analyzed under the complicated conditions. The amount of the accidents in the world is terrifying and it is viewed as the highest in the world. So in this situation, we need an efficient method for fast intervention that will respond in such situations. Therefore, it is important to encourage the study in ambulance management and routing by introducing a new strategy for guiding ambulance toward the position of the accident in an efficient way. A distributed solution is proposed based on the ant colony system algorithm model. The improved method is based on a distributed architecture to compute and find the optimal path for a set of emergency vehicles. Based on the defect of the ambulance route planning, this paper puts forward a new distributed model to find the best way that minimizes the time while taking into consideration the cases of problems that can appear each time such as traffics, speed limit, number of available ambulances, the position of the hospitals.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"253 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123895090","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: 19
The impact of the decentralized energy generation on Moroccan industrial HTA network 分散式发电对摩洛哥工业HTA网络的影响
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370496
Sara Mkattiri, A. Saad
{"title":"The impact of the decentralized energy generation on Moroccan industrial HTA network","authors":"Sara Mkattiri, A. Saad","doi":"10.1109/ICOA.2018.8370496","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370496","url":null,"abstract":"Morocco knows a growing demand of connection of decentralized energies generations (DEG) to the distribution networks, So the study of the impact of DEG based on renewable energies (wind farms, photovoltaic parks, etc….) on the HTA network is a primordial study which aims to analyze the constraints related to different aspects such as: power transit, voltage plan, protection plan, energy quality, etc…. In This paper, a static and a harmonic analysis of the impact of the DEG on a real industrial network is made. Taking into account the different scenarios of localization DEG and different values of DEG power, all simulations are done using the NEPLAN software.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115419749","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
How does cosmic rays affect multijunction solar cells 宇宙射线如何影响多结太阳能电池
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/icoa.2018.8370539
A. Karkri, A. Chetouani, M. Benaichi, D. Moussaid, S. E. Elqebbaj
{"title":"How does cosmic rays affect multijunction solar cells","authors":"A. Karkri, A. Chetouani, M. Benaichi, D. Moussaid, S. E. Elqebbaj","doi":"10.1109/icoa.2018.8370539","DOIUrl":"https://doi.org/10.1109/icoa.2018.8370539","url":null,"abstract":"Numerical simulation of solar cells degradation has become a hot topic in the researches over the past few years, especially in the space industry, where photovoltaic is the main power source and high-energy radiations are found. In this paper, we present a numerical model to predict the radiation response of a multi-junction solar cell, resulting from ionization and excitation of semiconductor's atoms by charged cosmic rays. The developed model is based on the drift-diffusion semiconductor equations, in which we incorporate some additional terms to include the irradiation-induced defects. These additional terms are modeled vias the Shockley-Red-Hall theory. In addition, this model uses the quantum mechanical Bethe-Bloch formalism to describe the reaction of both heavy and light charged particles with semiconductor materials, forming the solar cells.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131213709","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
A DPS filter for nonconvex edge preserving for PieceWise constant signals denoising 一种分段常数信号去噪的非凸边保持DPS滤波器
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370543
A. Belcaid, M. Douimi, E. Zemmouri
{"title":"A DPS filter for nonconvex edge preserving for PieceWise constant signals denoising","authors":"A. Belcaid, M. Douimi, E. Zemmouri","doi":"10.1109/ICOA.2018.8370543","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370543","url":null,"abstract":"A robust estimator, namely the DPS algorithm, for piecewise constant signals denoising, is revised in this paper. Starting from its Markov random field formulation, which defines the solution as the global minimizer of a non-convex non-smooth energy function. The DPS algorithm transforms the line process mixed energy into a discrete optimization problem and proposes a BFS search strategy to find the optimal state. We develop a numerical scheme to replace the BFS search by a simple linear scan over the edges of the MRF. Each visit to an edge considers a local blanket of the MRF and then computes the estimated signal around the vicinity of the edge. The gradient of the solution will decide the existence or absence of a discontinuity based on a threshold. Theoretical results shows that the new implementation has a linear time and space complexity, but the local aspect reduces the robustness of the method against noise. A set of numerical simulations assist to show the reduction in time compared to the classical implementation and to compare the restoration quality against state-of-the-art algorithms.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130670857","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
A new class of spectral risk measures 一类新的频谱风险度量
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370533
Mohammed Berkhouch, G. Lakhnati, M. Righi
{"title":"A new class of spectral risk measures","authors":"Mohammed Berkhouch, G. Lakhnati, M. Righi","doi":"10.1109/ICOA.2018.8370533","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370533","url":null,"abstract":"The aim of this paper is to introduce a class of spectral risk measures that extends the Gini-type measure of risk and variability, by taking risk aversion into consideration. Our class of risk measures is coherent and catches variability, an important concept for risk management. The analysis is made under the Choquet integral representation framework. We further provide a practical application.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126766917","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
Solving the hybrid berth allocation problem using a bat-inspired algorithm 用蝙蝠启发算法求解混合泊位分配问题
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370557
El Hammouti Issam, Lajjam Azza, E. Mohamed
{"title":"Solving the hybrid berth allocation problem using a bat-inspired algorithm","authors":"El Hammouti Issam, Lajjam Azza, E. Mohamed","doi":"10.1109/ICOA.2018.8370557","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370557","url":null,"abstract":"In this paper, we developed a new metaheuristic based on the bat-inspired algorithm for solving the Berth Allocation Problem (BAP). This problem consists generally on planning a vessel assignment to the berth, with the objective of minimizing the time spent by vessels in port. In our study, we consider a hybrid berth's type where two vessels can be moored at the same time if their total length is less or equal to the overall length of the berth. Indeed, this hybrid case is rarely taken into account by the other studies which always supposed that a berth can serve just one vessel at the same time. A mathematical model is presented which in addition to assigning a given berth to each vessel calling at the port, aims to minimize its staying cost at the terminal. Different computational experiments based on the traffic data observed from Tangier container terminal in Morocco are realized to show the effectiveness of our results.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121991244","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
Topological optimization of structures based on the BESO-Method 基于beso方法的结构拓扑优化
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370554
Gueya Mohamed Mahmoud, Pr. Boudi El Mostapha, Pr. Cherradi Toufik
{"title":"Topological optimization of structures based on the BESO-Method","authors":"Gueya Mohamed Mahmoud, Pr. Boudi El Mostapha, Pr. Cherradi Toufik","doi":"10.1109/ICOA.2018.8370554","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370554","url":null,"abstract":"The paper presents a solution to the problem of the topological optimization of the support structure of the shop using algorithm the topological optimization criterion taking into account the distribution of stresses in the structure. The method can be applied to a complex geometrical forms such as civil engineering structures, composites structures, etc. The iterative algorithm is coupled with a finite elements method computation of stress and strains with optimization of re-meshing in every iteration by controlling error finite elements approximation.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133691376","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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