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European Journal of Technic最新文献

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De-Orbiting Electro-Mechanical System Design for Micro Spacecraft 微航天器离轨机电系统设计
European Journal of Technic Pub Date : 2021-06-01 DOI: 10.36222/ejt.942123
U. Kesen
{"title":"De-Orbiting Electro-Mechanical System Design for Micro Spacecraft","authors":"U. Kesen","doi":"10.36222/ejt.942123","DOIUrl":"https://doi.org/10.36222/ejt.942123","url":null,"abstract":"","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123955800","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
MODELING AND ANALYSIS OF PITCH ANGLE CONTROL ON VARIABLE SPEED WIND TURBINES 变速风力机俯仰角控制建模与分析
European Journal of Technic Pub Date : 2021-06-01 DOI: 10.36222/ejt.823439
Hasan Bektas Percin, A. Caliskan
{"title":"MODELING AND ANALYSIS OF PITCH ANGLE CONTROL ON VARIABLE SPEED WIND TURBINES","authors":"Hasan Bektas Percin, A. Caliskan","doi":"10.36222/ejt.823439","DOIUrl":"https://doi.org/10.36222/ejt.823439","url":null,"abstract":"","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133120866","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
DYNAMIC INVESTIGATION OF A PERMANENT MAGNET SYNCHRONOUS MOTOR FOR FAULTY OPERATIONS 永磁同步电动机故障运行的动力学研究
European Journal of Technic Pub Date : 2021-06-01 DOI: 10.36222/ejt.891458
Muhammed Seker, Duygu Bayram
{"title":"DYNAMIC INVESTIGATION OF A PERMANENT MAGNET SYNCHRONOUS MOTOR FOR FAULTY OPERATIONS","authors":"Muhammed Seker, Duygu Bayram","doi":"10.36222/ejt.891458","DOIUrl":"https://doi.org/10.36222/ejt.891458","url":null,"abstract":"","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121030950","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
NUMERICAL INVESTIGATION OF FATIGUE BEHAVIOURS OF NON-PATCHED AND PATCHED ALUMINIUM PIPES 未修补和修补铝管疲劳性能的数值研究
European Journal of Technic Pub Date : 2021-06-01 DOI: 10.36222/ejt.893327
H. Adin, B. Yildiz, Mehmet Şükrü Adin
{"title":"NUMERICAL INVESTIGATION OF FATIGUE BEHAVIOURS OF NON-PATCHED AND PATCHED ALUMINIUM PIPES","authors":"H. Adin, B. Yildiz, Mehmet Şükrü Adin","doi":"10.36222/ejt.893327","DOIUrl":"https://doi.org/10.36222/ejt.893327","url":null,"abstract":"In this study, the fatigue behaviors of non-patched and patched aluminum pipes were investigated numerically. The Finite Element Method was used for fatigue analysis in the study. Finite Element Method was implemented with Ansys Workbench (15.0) program. Al 6063 type aluminum pipe, DP-460 type adhesive and [0/90]2 reinforced angled glass-epoxy composite patch material were used in the analyzes. As a result of the numerical study, it was observed that patch size is an effective parameter in fatigue strength and that quarter- circle and semi-circular composite patches increase the fatigue life. It was also observed in the analyzes that the quarter-circle patched aluminum pipes achieved higher fatigue strength.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115437056","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: 7
Comparison Between MRAS and SMO Based Sensorless Control Methods of Permanent Magnet Synchronous Motor 基于MRAS和SMO的永磁同步电机无传感器控制方法的比较
European Journal of Technic Pub Date : 2021-06-01 DOI: 10.36222/ejt.811569
Caglar Aydin, Sencer Ünal, M. Özdemir
{"title":"Comparison Between MRAS and SMO Based Sensorless Control Methods of Permanent Magnet Synchronous Motor","authors":"Caglar Aydin, Sencer Ünal, M. Özdemir","doi":"10.36222/ejt.811569","DOIUrl":"https://doi.org/10.36222/ejt.811569","url":null,"abstract":"","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127422989","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
EXPERIMENTAL INVESTIGATION OF THE MECHANICAL AND MICROSTRUCTURE PROPERTIES OF S49 RAIL STEEL s49轨道钢力学性能和显微组织性能的试验研究
European Journal of Technic Pub Date : 2021-06-01 DOI: 10.36222/ejt.812142
Anil Ridvanogullari, T. Çetin, M. Akkaş
{"title":"EXPERIMENTAL INVESTIGATION OF THE MECHANICAL AND MICROSTRUCTURE PROPERTIES OF S49 RAIL STEEL","authors":"Anil Ridvanogullari, T. Çetin, M. Akkaş","doi":"10.36222/ejt.812142","DOIUrl":"https://doi.org/10.36222/ejt.812142","url":null,"abstract":"","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130284259","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
ENRICHMENT OF APATITE-BEARING IRON ORE BY MAGNETIC SEPARATION AND FLOTATION 含磷灰石铁矿磁选浮选富集研究
European Journal of Technic Pub Date : 2021-02-02 DOI: 10.36222/EJT.866718
Mustafa Birinci
{"title":"ENRICHMENT OF APATITE-BEARING IRON ORE BY MAGNETIC SEPARATION AND FLOTATION","authors":"Mustafa Birinci","doi":"10.36222/EJT.866718","DOIUrl":"https://doi.org/10.36222/EJT.866718","url":null,"abstract":"ABSTRACT","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122382156","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 FAST AND ENERGY EFFICIENT PARALLEL IMAGE FILTERING IMPLEMENTATION ON RASPBERRY PI'S GPU 一个快速和节能的并行图像滤波实现在树莓派的gpu
European Journal of Technic Pub Date : 2020-12-30 DOI: 10.36222/ejt.708805
A. Polat, S. Bayar
{"title":"A FAST AND ENERGY EFFICIENT PARALLEL IMAGE FILTERING IMPLEMENTATION ON RASPBERRY PI'S GPU","authors":"A. Polat, S. Bayar","doi":"10.36222/ejt.708805","DOIUrl":"https://doi.org/10.36222/ejt.708805","url":null,"abstract":"This paper presents a powerful processing technique for fast and energy-efficient image filtering algorithm focusing energy and time-sensitive embedded and robotic platforms. Digital video processing is getting more and more popular in battery-powered devices like mobile robots and smartphones whereas in most cases, it leads overhead on the main central processing unit (CPU) and it consumes a significant amount of energy from the battery. It is suitable for parallelism since there is no data dependency between the steps of the two-dimensional convolution algorithm. We propose a vector version of the two-dimensional convolution algorithm, which can run parallel on embedded processors that has general purpose graphic processing unit (GPGPU), to reduce computation time and energy consumption. Our in-depth experiments shows that using GPGPU could reduce the execution time while guaranteeing lower power consumption and offloading the system CPU. Experimental results showed that we achieved up to 105 times faster operation and 100 times less energy consumption compared to the CPU implementation. Besides, we reduced the CPU overhead up to 10 times.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127649454","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
ANALYSIS AND SIMULATION OF A THREE-PHASE DELTA INVERTER FOR A STAR-CONNECTED RL LOAD 星形连接负载三相三角形逆变器的分析与仿真
European Journal of Technic Pub Date : 2020-12-30 DOI: 10.36222/ejt.730792
Ahmet Gündoğdu, Resat Çelikel, Sehmus Fidan
{"title":"ANALYSIS AND SIMULATION OF A THREE-PHASE DELTA INVERTER FOR A STAR-CONNECTED RL LOAD","authors":"Ahmet Gündoğdu, Resat Çelikel, Sehmus Fidan","doi":"10.36222/ejt.730792","DOIUrl":"https://doi.org/10.36222/ejt.730792","url":null,"abstract":"In this study, analysis and simulation of the electrical and mathematical model of a 3-phase and 3-switch delta inverter that fed a three-phase RL load were performed. First, the Matlab/Simulink model of the inverter was created. In this model, an RL load of R=10Ω and L=0.005 H was fed and various simulations were made. The simulation results were obtained using 3 step switching technique for different conduction modes. The delta inverter that has a simpler structure and less switching elements than conventional inverter structures can be easily realized with low-cost microcontrollers.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123601516","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
DETERMINATION OF EMOTIONAL STATUS FROM EEG TIME SERIES BY USING EMD BASED LOCAL BINARY PATTERN METHOD 基于emd的局部二值模式方法在脑电时间序列中确定情绪状态
European Journal of Technic Pub Date : 2020-12-30 DOI: 10.36222/ejt.807971
Ömer Türk
{"title":"DETERMINATION OF EMOTIONAL STATUS FROM EEG TIME SERIES BY USING EMD BASED LOCAL BINARY PATTERN METHOD","authors":"Ömer Türk","doi":"10.36222/ejt.807971","DOIUrl":"https://doi.org/10.36222/ejt.807971","url":null,"abstract":"Although determining emotional states from brain dynamics has been a subject that has been studied for a long time, the desired level has not been reached yet. In this study, Empirical mode decomposition (EMD) based Local Binary Pattern (LBP) method is proposed for emotional determination using (positive-neutral-negative) Electroencephalogram (EEG) signals. Thanks to this method, a hybrid structure was created in obtaining features from EEG signals. In the study, Seed EEG dataset containing 15 positive subjects and positive-neutral-negative emotional state is used. In the study, classification is utilized with the basis of individuals by using 27 EEG channels in the left hemisphere of each subject. Level 5 was separated by applying EMD to EEG segments containing three emotional states. Features were obtained from the Intrinsic mode function (IMF) using LBP method. These features are classified with k Nearest Neighbor (k-NN) and Artificial Neural Network (ANN). The average classification accuracy for 15 participants was 83.77% using the k-NN classifier and 84.50% with the ANN classifier. In addition, the highest classification performance was found to be 96.75% with the k-NN classifier. The results obtained in the study support similar studies in the literature.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"126 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124232386","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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