Journal of Electronic Science and Technology最新文献_第7页

Effect of wall thickness on broadband design of a Ka-band TE21-mode coupler 壁厚对ka波段te21模耦合器宽带设计的影响

Journal of Electronic Science and Technology Pub Date : 2021-12-01 DOI: 10.1016/j.jnlest.2021.100137

Wei Zheng, Chao Wang, Wen-Li Yang, Chun-Bang Wu

引用次数: 0

Dual-mode terahertz extended interaction oscillator driven by a pseudospark-sourced sheet electron beam 伪火花源片状电子束驱动的双模太赫兹扩展相互作用振荡器

Journal of Electronic Science and Technology Pub Date : 2021-09-01 DOI: 10.1016/j.jnlest.2021.100093

Jie Xie , Xue-Song Yuan , Liang Zhang , Adrian W. Cross , Hua-Bi Yin , Qing-Yun Chen , Tong-Bin Yang , Xiao-Tao Xu , Yang Yan , Lin Meng

引用次数: 0

Recent progress in chiral absorptive metamaterials 手性吸收超材料研究进展

Journal of Electronic Science and Technology Pub Date : 2021-09-01 DOI: 10.1016/j.jnlest.2021.100098

Eric Ashalley , Cui-Ping Ma , Yi-Song Zhu , Hong-Xing Xu , Peng Yu , Zhi-Ming Wang

{"title":"Recent progress in chiral absorptive metamaterials","authors":"Eric Ashalley , Cui-Ping Ma , Yi-Song Zhu , Hong-Xing Xu , Peng Yu , Zhi-Ming Wang","doi":"10.1016/j.jnlest.2021.100098","DOIUrl":"10.1016/j.jnlest.2021.100098","url":null,"abstract":"<div><p>Chiral metamaterial absorbers (CMMAs), a particular class of chiral metamaterials that refuse the transmission of incident radiation and exhibit different optical responses upon interactions with left and right circularly polarized (LCP, RCP) light, have gained research traction in recent years. CMMAs demonstrate numerous exotic and specialized applications owing to their achievable compatibility with various physical, chemical, and biomolecular systems. Aside from their well-evolved fabrication modalities for a broad range of frequencies, CMMAs exhibit strong chiroptical effects, making them central to various detection, imaging, and energy harvesting applications. Consequently, within the past decade, studies encompassing the design, optimization, and fabrication, as well as demonstrating the diverse applications of CMMAs have emerged. In this review, the theory, design, and fabrication of CMMAs are discussed, highlighting their top-down fabrication techniques as well as recent algorithmic and machine-learning (ML)-based approaches to their design and optimization. Some of their broad-spectrum applications are also discussed, spanning their roles in enantioselective photodetection, chiral imaging, generation of hot electrons, selective temperature sensing, and active chiral plasmonics.</p></div>","PeriodicalId":53467,"journal":{"name":"Journal of Electronic Science and Technology","volume":"19 3","pages":"Article 100098"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jnlest.2021.100098","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46685892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Diagnosis of dental problem by using terahertz technology 用太赫兹技术诊断牙齿问题

Journal of Electronic Science and Technology Pub Date : 2021-09-01 DOI: 10.1016/j.jnlest.2021.100082

Nagendra Paradad Yadav , Guo-Zhen Hu , Zheng-Peng Yao , Ashish Kumar

{"title":"Diagnosis of dental problem by using terahertz technology","authors":"Nagendra Paradad Yadav , Guo-Zhen Hu , Zheng-Peng Yao , Ashish Kumar","doi":"10.1016/j.jnlest.2021.100082","DOIUrl":"10.1016/j.jnlest.2021.100082","url":null,"abstract":"<div><p>Recently the diagnoses of dental caries and other dental issues are in a queue as only X-ray-based techniques are available in most hospitals around the world. Terahertz (THz) parametric imaging (TPI) is the latest technology that can be applied for medical applications, especially dental caries. This technology is harmless and thus suitable for biological samples owing to the low energy of THz emission. In this paper, a developed TPI system is used to investigate the two-dimensional (2D) and three-dimensional (3D) images of different samples from human teeth. After analyzing the measured images of the human tooth, the results suggest that the novel THz parametric technology is capable of investigating the inner side structure of the teeth. The technique can be useful in detecting the defects in all types of human and animal teeth. The measurement and analytical calculations have been performed by using the TPI system and MATLAB, respectively, and both are in good agreement. The characteristics of THz waves and their interactions with the tooth samples are summarized. And the available THz-based technologies, such as TPI, and their potential applications of diagnoses are also presented.</p></div>","PeriodicalId":53467,"journal":{"name":"Journal of Electronic Science and Technology","volume":"19 3","pages":"Article 100082"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jnlest.2021.100082","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47800253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Resolving deep sub-wavelength scattering of nanoscale sidewalls using parametric microscopy 利用参数化显微镜解析纳米级侧壁的深亚波长散射

Journal of Electronic Science and Technology Pub Date : 2021-09-01 DOI: 10.1016/j.jnlest.2021.100094

Nagendra Parasad Yadav , Ji-Chuan Xiong , Wei-Ping Liu , Wei-Ze Wang , Yun Cao , Ashish Kumar , Xue-Feng Liu

{"title":"Resolving deep sub-wavelength scattering of nanoscale sidewalls using parametric microscopy","authors":"Nagendra Parasad Yadav , Ji-Chuan Xiong , Wei-Ping Liu , Wei-Ze Wang , Yun Cao , Ashish Kumar , Xue-Feng Liu","doi":"10.1016/j.jnlest.2021.100094","DOIUrl":"10.1016/j.jnlest.2021.100094","url":null,"abstract":"<div><p>The quantitative optical measurement of deep sub-wavelength features with sub-nanometer sensitivity addresses the measurement challenge in the semiconductor fabrication process. Optical scatterings from the sidewalls of patterned devices reveal abundant structural and material information. We demonstrated a parametric indirect microscopic imaging (PIMI) technique that enables recovery of the profile of wavelength-scale objects with deep sub-wavelength resolution, based on measuring and filtering the variations of far-field scattering intensities when the illumination was modulated. The finite-difference time-domain (FDTD) numerical simulation was performed, and the experimental results were compared with atomic force microscopic (AFM) images to verify the resolution improvement achieved with PIMI. This work may provide a new approach to exploring the detailed structure and material properties of sidewalls and edges in semiconductor-patterned devices with enhanced contrast and resolution, compared with using the conventional optical microscopy, while retaining its advantage of a wide field of view and relatively low cost.</p></div>","PeriodicalId":53467,"journal":{"name":"Journal of Electronic Science and Technology","volume":"19 3","pages":"Article 100094"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jnlest.2021.100094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41266980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Single-bit comparator in quantum-dot cellular automata (QCA) technology using novel QCA-XNOR gates 采用新型QCA- xnor门的量子点元胞自动机(QCA)技术中的单比特比较器

Journal of Electronic Science and Technology Pub Date : 2021-09-01 DOI: 10.1016/j.jnlest.2020.100078

Ali Hussien Majeed , Mohd Shamian Zainal , Esam Alkaldy , Danial Md. Nor

{"title":"Single-bit comparator in quantum-dot cellular automata (QCA) technology using novel QCA-XNOR gates","authors":"Ali Hussien Majeed , Mohd Shamian Zainal , Esam Alkaldy , Danial Md. Nor","doi":"10.1016/j.jnlest.2020.100078","DOIUrl":"10.1016/j.jnlest.2020.100078","url":null,"abstract":"<div><p>To fill the continuous needs for faster processing elements with less power consumption causes large pressure on the complementary metal oxide semiconductor (CMOS) technology developers. The scaling scenario is not an option nowadays and other technologies need to be investigated. The quantum-dot cellular automata (QCA) technology is one of the important emerging nanotechnologies that have attracted much researchers’ attention in recent years. This technology has many interesting features, such as high speed, low power consumption, and small size. These features make it an appropriate alternative to the CMOS technique. This paper suggests three novel structures of XNOR gates in the QCA technology. The presented structures do not follow the conventional approaches to the logic gates design but depend on the inherent capabilities of the new technology. The proposed structures are used as the main building blocks for a single-bit comparator. The resulted circuits are simulated for the verification purpose and then compared with existing counterparts in the literature. The comparison results are encouraging to append the proposed structures to the library of QCA gates.</p></div>","PeriodicalId":53467,"journal":{"name":"Journal of Electronic Science and Technology","volume":"19 3","pages":"Article 100078"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jnlest.2020.100078","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44943480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

Quasi-Z source inverter control of PV grid-connected based on fuzzy PCI 基于模糊PCI的光伏并网准z源逆变器控制

Journal of Electronic Science and Technology Pub Date : 2021-09-01 DOI: 10.1016/j.jnlest.2020.100021

Tao Hou , Chen-Yang Zhang , Hong-Xia Niu

{"title":"Quasi-Z source inverter control of PV grid-connected based on fuzzy PCI","authors":"Tao Hou , Chen-Yang Zhang , Hong-Xia Niu","doi":"10.1016/j.jnlest.2020.100021","DOIUrl":"10.1016/j.jnlest.2020.100021","url":null,"abstract":"<div><p>Photovoltaic grid-connected inverter is an important interface between the photovoltaic power generation system and power grid. Its high-quality operation is directly related to the output power quality of the power grid. In order to further optimize the control effect of the quasi-Z source grid-connected photovoltaic inverter, a fuzzy proportional complex integral control (PCI) method was proposed for the current internal loop control. This method can eliminate the steady-state error, and has the characteristic of zero steady-state error adjustment for the AC disturbance signal of a specific frequency. The LCL filter is adopted in the grid-connected circuit, and the feedback capacitive current is taken as the control variable of the inner loop to form the active damping control method, which can not only effectively suppress the resonance of the LCL circuit, but also significantly inhibit the high-order harmonics in the grid-connected current. Finally, a system simulation model is built in MATLAB/Simulink to verify the superiority and effectiveness of the proposed method.</p></div>","PeriodicalId":53467,"journal":{"name":"Journal of Electronic Science and Technology","volume":"19 3","pages":"Article 100021"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jnlest.2020.100021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44815535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Utilization-Aware Data Variable Allocation on NVM-Based SPM in Real-Time Embedded Systems 实时嵌入式系统中基于NVM的SPM的利用率感知数据变量分配

Journal of Electronic Science and Technology Pub Date : 2021-06-30 DOI: 10.11989/JEST.1674-862X.8011801

Jinyu Zhan, Yixin Li, Wei Jiang, Junhuan Yang

{"title":"Utilization-Aware Data Variable Allocation on NVM-Based SPM in Real-Time Embedded Systems","authors":"Jinyu Zhan, Yixin Li, Wei Jiang, Junhuan Yang","doi":"10.11989/JEST.1674-862X.8011801","DOIUrl":"https://doi.org/10.11989/JEST.1674-862X.8011801","url":null,"abstract":"With the development of the nonvolatile memory (NVM), using NVM in the design of the cache and scratchpad memory (SPM) has been increased. This paper presents a data variable allocation (DVA) algorithm based on the genetic algorithm for NVM-based SPM to prolong the lifetime. The lifetime can be formulated indirectly as the write counts on each SPM address. Since the differences between global variables and stack variables, our optimization model has three constraints. The constraints of the central processing unit (CPU) utilization and size are used for all variables, while no-overlay constraint is only used for stack variables. To satisfy the constraints of the optimization model, we use the greedy strategy to generate the initial population which can determine whether data variables are allocated to SPM and distribute them evenly on SPM addresses. Finally, we use the Malardalen worst case executive time (WCET) benchmark to evaluate our algorithm. The experimental results show that the DVA algorithm can not only obtain close-to-optimal solutions, but also prolong the lifetime by 9.17% on average compared with SRAM-based SPM.","PeriodicalId":53467,"journal":{"name":"Journal of Electronic Science and Technology","volume":"19 1","pages":"163-172"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47024549","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

Progress and prospects of hydrogen production: Opportunities and challenges 氢生产的进展与前景:机遇与挑战

Journal of Electronic Science and Technology Pub Date : 2021-06-01 DOI: 10.1016/j.jnlest.2021.100080

Bing Zhang , Sui-Xin Zhang , Rui Yao , Yong-Hong Wu , Jie-Shan Qiu

引用次数: 72

Neural network based adaptive tracking of nonlinear multi-agent system 基于神经网络的非线性多智能体系统自适应跟踪

Journal of Electronic Science and Technology Pub Date : 2021-06-01 DOI: 10.1016/j.jnlest.2020.100043

Bo-Xian Lin, Wei-Hao Li, Kai-Yu Qin, Xi Chen

引用次数: 4