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2022 International Symposium on Antennas and Propagation (ISAP)

作者： Mina Nishie Taiga Hannya Keisuke Noguchi Graduate Program in Electrical Engineering and Electronics Kanazawa Institute of Technology Nonoichi Ishikawa Japan Kinden Corporation Osaka Osaka Japan Department of Electrical and Electronic Engineering Kanazawa Institute of Technology Nonoichi Ishikawa Japan

ISBN: (数字)9781665479622

ISBN: (纸本)9781665479639

Novel wireless communication systems such as IoT devices and B5G are widely spreading, high performance electrically small antennas which is wireless interface of RF module is strongly demanded. As relationship between miniaturization of antenna and realization of high performance is trade-off, research and development for electrically small antennas are important. Though spherical helix antennas have been proposed as antennas that the size is possible to reduction by theoretical limitation, practical improvement of the antenna performance is required. This paper denotes broadbanding of the hemispherical helix antennas using an equivalent circuit with loss factor, and discuss the affects of loss factor on the wideband characteristics.

关键词： Wireless communication Resistance Performance evaluation Helical antennas Antenna theory Broadband antennas Wideband

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A Novel Method for the Fabrication of Antibacterial Stainless Steel with Uniform Silver Dispersions by Silver Nanoparticle/Polyethyleneimine Composites

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Materials 2023年第10期16卷 3719-3719页

作者： Chih, Yu-Kun You, Jhu-Lin Lin, Wei-Hsuan Chang, Yen-Hao Tseng, Chun-Chieh Ger, Ming-Der Graduate School of Defense Science Chung Cheng Institute of Technology National Defense University Taoyuan335 Taiwan Department of Chemical and Materials Engineering Chung Cheng Institute of Technology National Defense University Taoyuan335 Taiwan System Engineering and Technology Program National Chiao Tung University Hsinchu300 Taiwan Combination Medical Device Technology Division Medical Devices and Opto-Electronics Equipment Department Metal Industries Research & Development Centre Kaohsiung821 Taiwan

Only a few studies have so far focused on the addition of silver to SS316L alloys by conventional sintering methods. Unfortunately, the metallurgical process of silver-containing antimicrobial SS is greatly limited due to the extremely low solubility of silver in iron and its tendency to precipitate at the grain boundaries, resulting in an inhomogeneous distribution of the antimicrobial phase and loss of antimicrobial properties. In this work, we present a novel approach to fabricate antibacterial stainless steel 316L by functional polyethyleneimine-glutaraldehyde copolymer (PEI-co-GA/Ag catalyst) composites. PEI is a highly branched cationic polymer, which makes it exhibit very good adhesion on the surface of the substrate. Unlike the effect of the conventional silver mirror reaction, the introduction of functional polymers can effectively improve the adhesion and distribution of Ag particles on the surface of 316LSS. It can be seen from the SEM images that a large number of silver particles are retained and well dispersed in 316LSS after sintering. PEI-co-GA/Ag 316LSS exhibits excellent antimicrobial properties and does not release free silver ions to affect the surrounding environment. Furthermore, the probable mechanism for the influence of the functional composites on the enhancement of adhesion is also proposed. The formation of a large number of hydrogen bonds and van der Waals forces, as well as the negative zeta potential of the 316LSS surface, can effectively enable the formation of a tight attraction between the Cu layer and the surface of 316LSS. These results meet our expectations of designing passive antimicrobial properties on the contact surface of medical devices. © 2023 by the authors.

关键词： Silver nanoparticles

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Diversity and Suitability of the State-of-the-Art Wearable and Wireless EEG Systems Review

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IEEE Journal of Biomedical and Health Informatics 2023年第8期27卷 3830-3843页

作者： He, Congying Chen, Yu-Yi Phang, Chun-Ren Stevenson, Cory Chen, I-Ping Jung, Tzyy-Ping Ko, Li-Wei Institute of Bioinformatics and Systems Biology National Yang Ming Chiao Tung University Hsinchu30010 Taiwan Institute of Applied Arts National Yang Ming Chiao Tung University Hsinchu30010 Taiwan International Ph.D. Program in Interdisciplinary Neuroscience National Yang Ming Chiao Tung University Hsinchu30010 Taiwan Institute for Neural Computation and Institute of Engineering in Medicine University of California San DiegoCA90093 United States National Yang Ming Chiao Tung University Hsinchu30010 Taiwan Institute of Electrical and Control Engineering Department of Electronics and Electrical Engineering Department of Biological Science and Technology National Yang Ming Chiao Tung University Hsinchu30010 Taiwan Department of Biomedical Science and Environment Biology Drug Development and Value Creation Research Center Kaohsiung Medical University Kaohsiung80708 Taiwan

Wireless electroencephalography (EEG) systems have been attracting increasing attention in recent times. Both the number of articles discussing wireless EEG and their proportion relative to general EEG publications have increased over years. These trends indicate that wireless EEG systems could be more accessible to researchers and the research community has recognized the potential of wireless EEG systems. To explore the development and diverse applications of wireless EEG systems, this review highlights the trends in wearable and wireless EEG systems over the past decade and compares the specifications and research applications of the major wireless systems marketed by 16 companies. For each product, five parameters (number of channels, sampling rate, cost, battery life, and resolution) were assessed for comparison. Currently, these wearable and portable wireless EEG systems have three main application areas: consumer, clinical, and research. To address this multitude of options, the article also discussed the thought process to find a suitable device that meets personalization and use cases specificities. These investigations suggest that low-price and convenience are key factors for consumer applications, wireless EEG systems with FDA or CE-certification may be more suitable for clinical settings, and devices that provide raw EEG data with high-density channels are important for laboratory research. This article presents an overview of the current state of the wireless EEG systems specifications and possible applications and serves as a guide point as it is expected that more influential and novel research will cyclically promote the development of such EEG systems. © 2023 IEEE.

关键词： Electroencephalography

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Data Warehouse-Based Ad Archive for Media Analysis

Data Warehouse-Based Ad Archive for Media Analysis

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International Conference on Edge Computing and Applications (ICECAA)

作者： G. Indra B. Praveen Kumar G. Hemanth Kumar MS Srikanth Department of Computer Science and Engineering R.M.K. College of Engineering and Technology Chennai Tamil Nadu India Department of Computer Science and Engineering KL University Vijayawada Andhra Pradesh India School of Electronics and Communication Engineering REVA University Bengaluru Karnataka India Program Specialist TNS India Foundation Bangalore Karnataka India

Media influence's public opinion and decision-making today. Advertisements especially affect audience perceptions, actions, and purchases. A comprehensive data library on commercials and their performance is needed to understand how media affects society. Ad content, placement, and performance are stored in a data warehouse-based ad archive. The archive can evaluate marketing campaigns and discover media trends. Ad servers, social media platforms, and media monitoring tools may build the data warehouse-based ad archive. A dimensional data model helps retrieve and analyze data. Structured Query Language (SQL) queries, Online Analytical Processing (OLAP) cubes, and data visualization tools may access the archive. Media academics, marketers, and politicians may study the media environment using the data warehouse-based ad archive. Media academics may utilize the collection to study the marketing campaigns, media trends and media's influence on society. The archive may help advertisers analyze their ad campaigns, optimize media placement, and understand their target demographic. Policymakers may use the archive to monitor media outlets' advertising compliance and assess policy changes' media landscape effects.

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FPGA Design of High-Speed Convolutional Neural Network Hardware Accelerator 3

FPGA Design of High-Speed Convolutional Neural Network Hardw...

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3rd Novel Intelligent and Leading Emerging Sciences Conference, NILES 2021

作者： Abd El-Maksoud, Ahmed J. Mohamed, Abdallah Tarek, Ahmed Adel, Amr Eid, Amr Khaled, Farida Khaled, Fatma Ibrahim, Ziad Mandouh, Eman El Mostafa, Hassan Electronics and Electrical Communications Engineering Department Cairo University Giza Egypt Mentor Graphics University of Science and technology Nanotechnology and Nanoelectronics Program Zewail City of Science and Technology October Gardens 6th of October Giza12578 Egypt

ISBN: (纸本)9781665421577

Convolutional Neural Networks get increasingly importance nowadays as they enable machines to interact with the surrounding environment, which paves the way for computer vision applications. FPGA implementations of CNN architectures have higher speed and lower power consumption compared to GPUs and CPUs. This paper proposes a high-speed hardware accelerator on FPGA for SqueezeNet CNN to accelerate its processing without decreasing the classification accuracy. Several ideas are applied to solve the memory bottleneck issue such as using Ping-Pong memory and deploying several FIFOs in the design. The architecture is built as a pipelined unit to process SqueezeNet CNN layer by layer. Different parallelism techniques are applied while processing the convolution layers to speedup layers processing. Moreover, the proposed accelerator classifies 248.76 fps at a frequency of 100MHz, and 427.4 fps at a frequency of 172 MHz. The proposed accelerator is implemented on Virtex-7 FPGA, and overcomes Geforce RTX 2080Ti GPU and several SqueezeNet FPGA implementations. © 2021 IEEE.

关键词： Field programmable gate arrays (FPGA)

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Heart Valve Disease Recognition Using Phonocardiogram Signal Based on A Lightweight Convolution Neural Network

Heart Valve Disease Recognition Using Phonocardiogram Signal...

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International SoC Design Conference, ISOCC

作者： Yen-Ching Chang Szu-Ting Wang Ying-Hsiu Hung Yao-Feng Liang Ming-Hwa Sheu Shin-Chi Lai Department of Electronics Engineering National Yunlin University of Science and Technology Douliu Taiwan Doctor’s Program of Smart Industry Technology Research and Design National Formosa University Huwei Taiwan Department of Automation Engineering National Formosa University Huwei Taiwan Smart Machinery and Intelligent Manufacturing Research Center National Formosa University Huwei Taiwan

To assist doctors more effectively in clinical diagnosis, a lightweight system using Phonocardiogram (PCG) for early detection of Cardiovascular diseases (CVDs) has been developed. It employs short-time Fourier transform (STFT) and a Maxout residual network (MaxResNet) for heart valve disease recognition. Results from 10-fold cross-validation show a 99% recognition accuracy with only 0.16M parameters. Compared to Karhade et al.’s approach, this method achieves similar accuracy while reducing parameter usage by 87%. Additionally, it achieves real-time performance on Raspberry Pi, taking only 6 ms to recognize 1.1 seconds of PCG recordings.

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technology Development Process Models: E Review and Future Agenda

SSRN

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SSRN 2022年

作者： Gonçalves Vasconcelos Sampaio, Priscila Orestes Aguirre González, Mario Caetano, Mauro Almeida, Mariana Rodrigues de de Andrade, Humberto Dionísio Ribeiro da Silva, Djalma Pinheiro Pereira, Jonathan Paulo Postgraduate Program in Petroleum Science and Engineering RN Natal Brazil SP São José dos Campos Brazil Engineering and Technology Department RN Mossoró Brazil Department of Electronics RN Mossoró Brazil

One of the main tools used in innovation management is the adoption of technology development process models. Its main particularities, as well as its main forms of use are presented in this study based on an extensive literature review on the subject. Different models are presented. The activities of acquiring knowledge, converting ideas into a technology base or platform and later used in the design of new products, processes or services, seek to meet or even generate new market needs. Implications of models in the management of innovation in organizations as a way of optimizing the organizations' innovative efforts. © 2022, The Authors. All rights reserved.

关键词： Product development

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Highly Sensitive and Stable Non-Enzymatic Glucose Sensing Based on Nanostructure-Gated Organic Electrochemical Transistors with Self-Ph Calibration

SSRN

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SSRN 2025年

作者： Cheng, Huanyu Meng, Ke Zhu, Jia Zhang, Tianyao Zhang, Xianzhe Zhang, Yingying Chen, Xiangjie Li, Fan Tong, Yao Zhang, Senhao Qiu, Donghai Yang, Hongbo Liu, Shangbin Yin, Lan Zhao, Rui Huang, Libin Li, Tao Gao, Min Pan, Taisong Yang, Jian Lin, Yuan State Key Laboratory of Biotherapy and Cancer Center China School of Material and Energy University of Electronic Science and Technology of China Chengdu610054 China University of Electronics Science and Technology of China Quzhou324000 China Department of Engineering Science and Mechanics The Pennsylvania State University University ParkPA16802 United States Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Science Suzhou215011 China School of Materials Science and Engineering Tsinghua University Beijing100084 China Department of Gastroenterology West China Hospital Sichuan University Chengdu610041 China Research Center for Industries of the Future Biomedical Engineering Program School of Engineering Westlake University Zhejiang Hangzhou310030 China Medico-Engineering Cooperation on Applied Medicine Research Center University of Electronics Science and Technology of China Chengdu610054 China

Non-invasive, real-time, and continuous monitoring of the trace amount of glucose in near-neutral biofluids is significant for the daily care and treatment of diabetic patients or people with suboptimal health status. Despite improved sensing performance with novel low-dimensional materials or porous structures in various enzymatic and non-enzymatic electrochemical glucose sensors, they still suffer from high cost, poor long-term stability, and performance fluctuations in varied temperature and pH. This work synergistically combines an Au-modified porous laser-induced graphene (LIG) gate electrode with an organic electrochemical transistor (OECT) to create a flexible non-enzymatic glucose sensor. The resulting OECT-based non-enzymatic glucose sensor exhibits significantly enhanced sensitivity in near-neutral biofluids, the limit of detection (LOD) (0.08 μM in pH=7.4), excellent stability over time (degradation of ~10% in 180 days) and against temperature changes (30 °C - 40 °C), self-pH calibration capabilities, and uncompromised sensing performance with shrinking sizes. The highly consistent laser patterning technique and in situ galvanic reduction process for electrode modifications not only provide a simple yet versatile approach to creating low-cost, compact sensing platforms for precise and real-time sweat glucose measurements, but also support scalable production, allowing the correlation study of key biomarkers in sweat and blood. © 2025, The Authors. All rights reserved.

关键词： Coated wire electrodes

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First Demonstration of HZO-LNOI Integrated Ferroelectric Electro-Optic Modulator and Memory to Enable Reconfigurable Photonic Systems

First Demonstration of HZO-LNOI Integrated Ferroelectric Ele...

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International Electron Devices Meeting (IEDM)

作者： Zefeng Xu Chun-Kuei Chen Hong-Lin Lin Yuan Gao Wei Ke Baochang Xu Pavel Dmitriev Carlan Arbiz Evgeny Zamburg Steven Touzard Xinlun Cai James Lee Suresh Venkatesan Aaron Danner Aaron Voon-Yew Thean Department of Electrical and Computer Engineering National University of Singapore (NUS) Integrative Sciences and Engineering Program NUS Graduate School Singapore Next-Generation Hybrid μ-Electronics Center (SHINE) Singapore School of Electronics and Information Technology Sun Yat-Sen University China 510275 Singapore Centre for Quantum Technologies NUS POET Technologies

We have successfully demonstrated, for the first time, an innovative back-end-of-line (BEOL) compatible electro-optic modulator and memory (EOMM) based on Lithium Niobate on Insulator (LNOI) micro-ring resonator (MRR) integrated with Ferroelectric Hafnium Zirconate Hf 0.5 Zr 0.5 O (HZO) non-volatile analog memory. High non-volatile memory and modulation performances are both achieved in a single compact device, exhibiting high extinction ratio of 13.3 dB, excellent efficiency of 66pm/V, stable nine-state switching, record-high endurance exceeding 10 9 cycles. This is accomplished by utilizing Pockels effect in LNOI, induced by electric-field effect from remnant HZO ferroelectric polarization. We studied the system implementation of reconfigurable chiplet-interposer photonic interconnect, enabled by the EOMM and EOMM with hybrid thermal-optical modulation. Our model shows a potential 70% energy efficiency improvement over conventional electrical interposer interconnect. We have also tested the integration of the EOMM with POET technologies’ 400G Tx/Rx optical interposer chip and studied a limited scale demonstration of the EOMM device.

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900 MHz RF Power Rectifier Based on Ultra-low Turn-on Voltage Quasi-vertical GaN Schottky Diode

900 MHz RF Power Rectifier Based on Ultra-low Turn-on Voltag...

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Wireless Power Week (WPW)

作者： Xiaochen Yu Ya-Xun Lin Ivona Z. Mitrovic Steve Hall Der-Sheng Chao Jenq-Horng Liang Yi Huang Ta-Jen Yen Jiafeng Zhou International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu Taiwan Department of Electrical Engineering and Electronics University of Liverpool Liverpool United Kingdom Nuclear Science and Technology Development Center National Tsing Hua University Hsinchu Taiwan Department of Engineering and System Science National Tsing Hua University Hsinchu Taiwan Department of Materials Science and Engineering National Tsing Hua University Hsinchu Taiwan

ISBN: (数字)9798350349139

ISBN: (纸本)9798350349146

This paper presents a 20 W high-power RF-to-DC rectifier that can be applied to wireless power transfer (WPT) systems. To address the power limitations of conventional diodes, a rectifier is designed based on a gallium nitride (GaN) integrated circuit (IC) quasi-vertical Schottky barrier diode (SBD). Leveraging the advantages of high mobility, wide bandgap, and saturation velocity of the GaN, significant benefits of the diode have been derived, with an ultra-low turn-on voltage of 0.23 ± 0.005 V (at 1 A/cm 2 ) and a high breakdown voltage of 180 V, to improve the rectification performance. Using this diode, a high-power rectifier with a wide input power range and high efficiency is developed. The proposed rectifier structure consists of a single-shunt self-developed diode and a topology with class-F harmonics control networks. It achieves a peak power conversion efficiency of 72.9% with an input power of 43 dBm at 900 MHz.

关键词： Wireless communication Integrated circuits Schottky diodes Wireless sensor networks Breakdown voltage Rectifiers Wireless power transfer

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