Journal of Engineering Technology and Applied Physics最新文献_第2页

Evaluation of The Effect of Spoofing on Dual-Frequency Global Navigation Satellite System (GNSS) 评估欺骗对双频全球导航卫星系统（GNSS）的影响

Journal of Engineering Technology and Applied Physics Pub Date : 2024-03-15 DOI: 10.33093/jetap.2024.6.1.13

Dinesh Sathyamoorthy, Ahmad Firdaus Ahmad Kazmar, Amirah Sakinah Mohd Rozlan, Mohammad Ghazdly Adril Ghazali, Noor Hazimah Syamila Mat Najib

引用次数: 0

An Analysis of Split-Ring Resonators and Potential Barcode Application 分环谐振器和潜在条形码应用分析

Journal of Engineering Technology and Applied Physics Pub Date : 2024-03-15 DOI: 10.33093/jetap.2024.6.1.10

Chu Shen Ong, K. Yeap, Zhi Lin Chong, H. Nisar

{"title":"An Analysis of Split-Ring Resonators and Potential Barcode Application","authors":"Chu Shen Ong, K. Yeap, Zhi Lin Chong, H. Nisar","doi":"10.33093/jetap.2024.6.1.10","DOIUrl":"https://doi.org/10.33093/jetap.2024.6.1.10","url":null,"abstract":"This paper presents an analysis of various split-ring resonator (SRR) configurations coupled with coplanar waveguides (CPW). Three distinct resonant structures are presented, namely, the S-shaped split-ring resonator (S-SRR), the conventional split-ring resonator (SRR), and a pair of SRR. Among the examined resonant structures, it is observed that the S-SRR exhibits the smallest electrical size with the corresponding resonant frequency of 1.37 GHz, while the conventional SRR has the largest electrical size with the corresponding resonant frequency of 3.34 GHz. On the other hand, the resonant frequency of a dual SRR is 2.37 GHz. However, the transmission coefficient of a dual SRR is -11.43 dB, which is higher than S-SRR (-10.02 dB) and SRR (-8.18 dB). Furthermore, this study extends the analysis between a square dual SRR and a circular dual SRR with retained area. The square SRR demonstrates a lower resonance frequency (2.23 GHz) relative to its circular counterpart (2.37 GHz). The comparison also shows that the transmission coefficient of the square configuration is -13.88 dB, which is higher than its circular counterpart (-11.43 dB). The realization of a barcode application is achieved by loading multiple S-shaped split ring resonators (S-SRRs) with varying geometric parameters adjacently onto the transmission line. By individually rotating each of these S-SRRs, it becomes possible to alter the notch magnitude, thereby positioning it within a specific designated range corresponding to a particular code. In the case of a configuration involving rotations of (0°, 45°, 90°, 0°, 45°, 90°), this approach results in the creation of a barcode denoted as \"100 010 000 100 011 000\". This methodology enables the encoding of information in the form of distinctive resonant responses, providing a versatile and compact means of realizing barcode applications.","PeriodicalId":441201,"journal":{"name":"Journal of Engineering Technology and Applied Physics","volume":"4 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140241124","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

Real-Time Heart Rate Classification: Advancements and Challenges 实时心率分类：进步与挑战

Journal of Engineering Technology and Applied Physics Pub Date : 2024-03-15 DOI: 10.33093/jetap.2024.6.1.6

Chze Xin Loo, S. Yogarayan, Siti Fatimah Abdul Razak

引用次数: 0

The Design of Low Power Op-amp for Biomedical Application 为生物医学应用设计低功耗运算放大器

Journal of Engineering Technology and Applied Physics Pub Date : 2024-03-15 DOI: 10.33093/jetap.2024.6.1.4

Ameerul Asyraf Nasir, C. Lee, K. Chan, Lini Lee, Senthilpari Chinnaiyan

引用次数: 0

Simulation of Dual-Material Hetero-Double Gate Tunnel Field Effect Transistor (TFET) in Sub-Micron Region 亚微米区域双材料异质双栅隧道场效应晶体管(ttfet)的模拟

Journal of Engineering Technology and Applied Physics Pub Date : 2023-09-15 DOI: 10.33093/jetap.2023.5.2.7

Chun Fui Tan, Ajay Kumar Singh

{"title":"Simulation of Dual-Material Hetero-Double Gate Tunnel Field Effect Transistor (TFET) in Sub-Micron Region","authors":"Chun Fui Tan, Ajay Kumar Singh","doi":"10.33093/jetap.2023.5.2.7","DOIUrl":"https://doi.org/10.33093/jetap.2023.5.2.7","url":null,"abstract":"To meet the performance requirements of low power mobile devices, a device with a high ION/IOFF ratio at low-VDD is needed. TFETs are gaining popularity due to their low subthreshold slope and high transconductance compared to MOSFETs. However, silicon-based TFETs have low on-state current, which limits their use in high-performance applications. To overcome this limitation, using a narrower band gap material like Ge can increase tunneling efficiency at the source side. Additionally, the larger ambipolar current associated with Si-TFETs can be reduced by considering a dual-material hetero-double-gate-dielectric (DM HDG) TFET. The main objective of this research is to propose and characterize a new TFET structure by considering the advantages associated with hetero structure and hetero-gate-dielectric TFETs, which realizes a device with an enhanced ION and a suppressed ambipolar current. The structure was fabricated with the addition of a hetero-dielectric Buried Oxide (BOX) on the doped substrate for the reduction of ambipolar current. We will adopt source-to-gate overlap technique to achieve desired subthreshold slope (SS). All the simulations were done by using 2-D TCAD simulator by Atlas Silvaco. The structure was optimized in terms of (ION/IOFF) and other performance metrics and simulation results were compared with other available structures in the literature.","PeriodicalId":441201,"journal":{"name":"Journal of Engineering Technology and Applied Physics","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135436659","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

An Improved DC-DC Boost Converter for Energy Harvesting 一种用于能量收集的改进DC-DC升压变换器

Journal of Engineering Technology and Applied Physics Pub Date : 2023-09-15 DOI: 10.33093/jetap.2023.5.2.8

Florence Chiao Mei Choong, Yin May Yeo

{"title":"An Improved DC-DC Boost Converter for Energy Harvesting","authors":"Florence Chiao Mei Choong, Yin May Yeo","doi":"10.33093/jetap.2023.5.2.8","DOIUrl":"https://doi.org/10.33093/jetap.2023.5.2.8","url":null,"abstract":"A novel dual-input DC-DC boost converter that can perform the integration of harvested energy from solar and vibrational input energy sources is proposed. Firstly, the background of a hybrid energy system that relates to multi-input DC-DC converters is discussed, and the limitations of the current designs of power converter ICs are highlighted. A detailed design analysis of the proposed converter was done to justify its performance. A current and voltage stress analysis has been performed to ensure suitable switching devices are selected for the converter. Two different power control strategies are proposed for the DIDCB converter to manage output voltage during source and load-side disturbances. Performance analysis of the circuit is carried out using MATLAB Simulink software. Different duty ratios for power switches in the converter were tested to determine the maximum boost ratio and the highest efficiency that can be achieved by the converter. To demonstrate the feasibility of the proposed converter, the performance of the converter is compared with existing converter topologies. The proposed converter achieved a high efficiency of 99.4%, had less fluctuation in the output voltage, and had reduced overshoot. In addition, the proposed converter demonstrated a simpler configuration and required fewer component counts, which helped reduce the cost and size of the system.","PeriodicalId":441201,"journal":{"name":"Journal of Engineering Technology and Applied Physics","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135436834","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

TracWork: An On-Field Employee Tracking System TracWork:现场员工跟踪系统

Journal of Engineering Technology and Applied Physics Pub Date : 2023-09-15 DOI: 10.33093/jetap.2023.5.2.14

Mobeen Nazar, Choudhary Saif Ali, Hassnain Khan, Aakif Iqbal, Ayesha Anees Zaveri

引用次数: 0

Improvement of Pulse Shape by Reducing Ripple Using Coaxial Cable 利用同轴电缆减小纹波改善脉冲形状

Journal of Engineering Technology and Applied Physics Pub Date : 2023-09-15 DOI: 10.33093/jetap.2023.5.2.4

Yin Yin Mya

引用次数: 0

Stacking Ensemble Approach for Churn Prediction: Integrating CNN and Machine Learning Models with CatBoost Meta-Learner 客户流失预测的堆叠集成方法:将CNN和机器学习模型与CatBoost元学习器集成

Journal of Engineering Technology and Applied Physics Pub Date : 2023-09-15 DOI: 10.33093/jetap.2023.5.2.12

Yan Lin Tan, Ying Han Pang, Shih Yin Ooi, Wee How Khoh, Fu San Hiew

{"title":"Stacking Ensemble Approach for Churn Prediction: Integrating CNN and Machine Learning Models with CatBoost Meta-Learner","authors":"Yan Lin Tan, Ying Han Pang, Shih Yin Ooi, Wee How Khoh, Fu San Hiew","doi":"10.33093/jetap.2023.5.2.12","DOIUrl":"https://doi.org/10.33093/jetap.2023.5.2.12","url":null,"abstract":"n the telecom industry, predicting customer churn is crucial for improving customer retention. In literature, the use of single classifiers is predominantly focused. Customer data is complex data due to class imbalance and contain multiple factors that exhibit nonlinear dependencies. In these complex scenarios, single classifiers may be unable to fully utilize the available information to capture the underlying interactions effectively. In contrast, ensemble learning that combines various base classifiers empowers a more thorough data analysis, leading to improved prediction performance. In this paper, a heterogeneous ensemble model is proposed for churn prediction in the telecom industry. The model involves exploratory data analysis, data pre-processing and data resampling to handle class imbalance. In this proposed model, multiple trained base classifiers with different characteristics are integrated through a stacking ensemble technique. Specifically, convolutional-based neural network, logistic regression, decision tree and Support Vector Machine (SVM) are considered as the base classifiers in this work. The proposed stacking ensemble model utilizes the unique strengths of each base classifier and leverages collective knowledge to improve prediction performance with a meta-learner. The efficacy of the proposed model is assessed on a real-world dataset, i.e., Cell2Cell. The empirical results demonstrate the superiority of the proposed model in churn prediction with 62.4 % f1-score and 60.62 % recall.","PeriodicalId":441201,"journal":{"name":"Journal of Engineering Technology and Applied Physics","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135436656","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

Fuzzy Logic Weighted Averaging Algorithm for Malaysian Banknotes Reader Featuring Counterfeit Detection 马来西亚纸币识别机的模糊逻辑加权平均算法

Journal of Engineering Technology and Applied Physics Pub Date : 2023-09-15 DOI: 10.33093/2023.5.2.3

Turki Khaled Al-Hila, Wai Kit Wong, Thu Soe Min, Eng Kiong Wong

引用次数: 0