Journal of Electrical Engineering最新文献_第2页

Automatic test-bench for SiC power devices using LabVIEW 使用 LabVIEW 的碳化硅功率器件自动测试平台

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0011

Jan Leuchter, Ngoc Nam Pham, Huy Hoang Nguyen

引用次数: 0

A Ku band low-voltage and low-power CMOS low-noise amplifier with bulk isolation techniques 采用体隔离技术的 Ku 波段低电压、低功耗 CMOS 低噪声放大器

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0014

Zifeng Guo, Jian Liu

引用次数: 0

Fault sensitivity index-based multi-objective testcase prioritization 基于故障敏感度指数的多目标测试案例优先级排序

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0018

Kamal Garg, Shashi Shekhar

{"title":"Fault sensitivity index-based multi-objective testcase prioritization","authors":"Kamal Garg, Shashi Shekhar","doi":"10.2478/jee-2024-0018","DOIUrl":"https://doi.org/10.2478/jee-2024-0018","url":null,"abstract":"\u0000 Test case prioritization (TCP) is a regression technique that sequences test cases by assigning priority based on specific criteria defined by software testers. Various parameters, such as code coverage, statement coverage, and method coverage, are utilized in Test Case Prioritization (TCP), wherein metaheuristic techniques are widely employed to determine the optimal order of test cases based on these specified parameters. However, simply applying these techniques does not ensure the satisfaction of all the needs of software testers. This paper introduces an empirical study that employs the multi-objective test case prioritization (MOTCP) technique to prioritize the test cases based on target points defined by software testers. The study calculates a Software Complexity Index (SCI) at the code level, identifying fault-prone areas. Furthermore, a Test-case Complexity Index (TCI) is also used for prioritization. The proposed technique incorporates various target points defined by the software tester to calculate SCI and TCI, which serve as our main objectives for TCP. A detailed analysis is also performed to examine the impact of these target points on the generated optimal order of test cases. Finally, the proposed model is compared with other state-of-the-art techniques across various evaluation parameters.","PeriodicalId":508697,"journal":{"name":"Journal of Electrical Engineering","volume":"9 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140755908","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

Contact measurement of skin temperature using a wearable two-channel PPG optical sensor supplemented by thermometers 使用可穿戴双通道 PPG 光学传感器，辅以温度计，接触式测量皮肤温度

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0015

J. Přibil, A. Přibilová, I. Frollo

{"title":"Contact measurement of skin temperature using a wearable two-channel PPG optical sensor supplemented by thermometers","authors":"J. Přibil, A. Přibilová, I. Frollo","doi":"10.2478/jee-2024-0015","DOIUrl":"https://doi.org/10.2478/jee-2024-0015","url":null,"abstract":"\u0000 This paper describes realization, basic properties, testing, and experiments with a special prototype of a wearable two-channel photoplethysmography (PPG) sensor supplemented by contact thermometers that maps the skin temperature at the place where the optical part of the sensor touches a measured hand part (typically a wrist and fingers). Preliminary measurement confirms that proposed I2C thermometers have proper stability and precision, so can be successfully used in the developed PPG sensor. The performed main experiments show that the significant increase of temperature was always observed at the place of the worn PPG sensors during the whole measurement. This rise of temperature affects mainly the PPG signal range, thus it has also influence on the quality of the sensed PPG wave. The conclusion formulates the final recommendation about the necessity of at least 5-minute time delay between the PPG sensor placement on the hand and the start of the PPG signal acquisition. While the current measurements were realized in normal laboratory conditions, the whole wearable PPG sensor consists of non-ferromagnetic materials and all parts are fully shielded by aluminum boxes to enable measurement in a low magnetic field environment which, is our final long term research aim.","PeriodicalId":508697,"journal":{"name":"Journal of Electrical Engineering","volume":"46 26","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140771223","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

Object classification with aggregating multiple spatial views using a machine-learning approach 利用机器学习方法汇总多个空间视图进行物体分类

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0017

Šimon Grác, Peter Beno, F. Duchoň, Michal Malý, Martin Dekan

引用次数: 0

Stability and reliability analysis for broadband current array sensing system applied to GIS 应用于地理信息系统的宽带电流阵列传感系统的稳定性和可靠性分析

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0020

F. Du, Hao Yu, Shuai Yuan, Jiangang Bi, Dehui Fu

引用次数: 0

Performance enhancement of band-pass FIR filter-based M-class phasor estimation 基于带通 FIR 滤波器的 M 级相位估算的性能提升

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0016

Mukesh Kumar, M. S. Kumar

引用次数: 0

A simple 90° hybrid branchline coupler with wideband phase balance for 5G applications 适用于 5G 应用的具有宽带相位平衡功能的简单 90° 混合支线耦合器

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0012

Ümit Can Ünal, K. Karaçuha, Sehabeddin Taha İmeci

{"title":"A simple 90° hybrid branchline coupler with wideband phase balance for 5G applications","authors":"Ümit Can Ünal, K. Karaçuha, Sehabeddin Taha İmeci","doi":"10.2478/jee-2024-0012","DOIUrl":"https://doi.org/10.2478/jee-2024-0012","url":null,"abstract":"\u0000 A 90° hybrid coupler operating at a central frequency of 5.40 GHz is introduced, offering high-performance characteristics with compact dimensions of 616.65 mm² (33.3 mm × 18.5 mm). These features are achieved while maintaining a design that makes it easy to produce. The unique aspect of this microstrip FR4 substrate-based design is the consistent S-parameters, which remain steady despite changes in structural dimensions, thereby making it adaptable to fabrication variations. The reported S-parameters measured in 5.4 GHz are as follows: |S11|= –29.46 dB, |S21|= –4.11 dB, |S31|= –3.96 dB, and |S41|= –21.23 dB. This hybrid coupler operates over a bandwidth of 0.8 GHz (16%), demonstrating remarkable performance within this spectrum. In addition to its design, the coupler exhibits robust resilience against changes in substrate parameters and structural dimensions, ensuring reliability during the fabrication process. Following thorough simulation studies, a physical prototype of the coupler was constructed and subjected to laboratory measurements. The experimental results align closely with the simulation data, validating the accuracy and predictability of the design. In comparison with other studies and designs documented in the literature, this compact, high-performance 90° hybrid coupler exhibits clear advantages in terms of size, isolation, phase deviation, and structural complexity. Therefore, the benefits and applicability of this presented structure in the context of microwave circuits and systems are underscored. It’s noteworthy to mention that the central frequency of 5.4 GHz falls within the sub-6 GHz 5G band range.","PeriodicalId":508697,"journal":{"name":"Journal of Electrical Engineering","volume":"242 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140783743","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

Influence of power control in the mobile network on the radiation level 移动网络功率控制对辐射水平的影响

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0019

D. Mitic, A. Lebl, Z. Markov

引用次数: 0

Deep reinforcement learning based computing offloading in unmanned aerial vehicles for disaster management 基于深度强化学习的无人飞行器计算卸载，用于灾害管理

Journal of Electrical Engineering Pub Date : 2024-04-01 DOI: 10.2478/jee-2024-0013

Anuratha Kesavan, Nandhini Jembu Mohanram, Soshya Joshi, Uma Sankar

{"title":"Deep reinforcement learning based computing offloading in unmanned aerial vehicles for disaster management","authors":"Anuratha Kesavan, Nandhini Jembu Mohanram, Soshya Joshi, Uma Sankar","doi":"10.2478/jee-2024-0013","DOIUrl":"https://doi.org/10.2478/jee-2024-0013","url":null,"abstract":"\u0000 The emergence of Internet of Things enabled with mobile computing has the applications in the field of unmanned aerial vehicle (UAV) development. The development of mobile edge computational offloading in UAV is dependent on low latency applications such as disaster management, Forest fire control and remote operations. The task completion efficiency is improved by means of using edge intelligence algorithm and the optimal offloading policy is constructed on the application of deep reinforcement learning (DRL) in order to fulfill the target demand and to ease the transmission delay. The joint optimization curtails the weighted sum of average energy consumption and execution delay. This edge intelligence algorithm combined with DRL network exploits computing operation to increase the probability that at least one of the tracking and data transmission is usable. The proposed joint optimization significantly performs well in terms of execution delay, offloading cost and effective convergence over the prevailing methodologies proposed for UAV development. The proposed DRL enables the UAV to real-time decisions based on the disaster scenario and computing resources availability.","PeriodicalId":508697,"journal":{"name":"Journal of Electrical Engineering","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140764728","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