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Smart Electronics and Communication Systems (ISENSE), International Conference on

作者： Titto Anujan Tony Jose Vismaya Vijayan Division of ECE Karunya Institute of Technology and Sciences Coimbatore Tamil Nadu Department of Electronics and Communication Engineering College of Engineering Trivandrum Kerala India

ISBN: (数字)9798331528126

ISBN: (纸本)9798331528133

The frequency range of terahertz (THz) has shown great promise for optical communication due to its enormous bandwidth and low interference. This review paper provides a thorough analysis of the latest developments and current obstacles in THz optical *** microwave and infrared wavelengths, the terahertz (THz) frequency range has special possibilities for optical communication *** investigates how THz frequencies and optical communication are convergent, emphasising the latter's promise for high-bandwidth, low-latency data transfer. We investigate possible uses of THz optical communication, such as sensing, imaging, and wireless networks, highlighting the revolutionary influence of this new sector on the design of communication systems in the future.

关键词： Technological innovation Reviews Wireless networks optical attenuators optical imaging Microwave theory and techniques optical fiber communication optical sensors Research and development Terahertz communications

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Preliminary design Of Low-velocity current-meter Rating Facility

Preliminary Design Of Low-velocity Current-meter Rating Faci...

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OCEANS

作者： J. Futrell R. Latorre US Geological Survey MS USA School of Naval Architecture and Marine Engineering University of New Orleans New Orleans LA USA

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design of UAV onboard 5G intelligent terminal 5

Design of UAV onboard 5G intelligent terminal

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5th International Conference on Computer Communication and Network Security, CCNS 2024

作者： Lan, Dun Tang, Bing Lin, Ji Deng, Jiugen Wu, Yunjiang Niu, Rui Xu, Xiaodong Zhang, Yufei China Mobile Chengdu Institute of Research and Development Sichuan Chengdu China

ISBN: (纸本)9781510681842

As drone technology rapidly evolves, the limitations of current communication systems, particularly regarding flight distance, bandwidth, and latency, become increasingly evident. This study addresses these challenges by integrating 5G technology with unmanned aerial vehicle (UAV) systems. Our approach employs a 300-meter aerial 5G network coupled with an advanced onboard 5G intelligent terminal, significantly improving drone communication. The paper details the terminal's hardware and software architecture, emphasizing enhancements in processing, interface configurations, environmental adaptability and cutting-edge software design. Extensive testing across various conditions demonstrates the system's robustness, efficiency, and adaptability, notably in maintaining stable communication across diverse environments. This research contributes to global sustainable technology trends and paves the way for future developments, such as the integration of artificial intelligence, machine learning, and the Internet of Things. This represents a pivotal advancement in UAV technology and its applications. © 2024 SPIE.

关键词： Drones

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InGaAs/InP OEIC's for optical computing

InGaAs/InP OEIC's for optical computing

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Indium Phosphide and Related Materials Conference

作者： F.R. Beyette X. An S.A. Feld M.J. Hafich G.Y. Robinson C.W. Wilmsen NSF ERC for Optoelectronic Computing Systems Department of Electrical Engineering Colorado State University USA

Techniques for optically controlling the latching capabilities of the light amplifying optical switch (LAOS) are described. It is shown that the latching can be controlled by reducing either the voltage or the current of the latching element. The operation and design of functional blocks that implement set/reset flip flops, gated latches, and inverting logic are discussed.< >

关键词： Indium gallium arsenide Indium phosphide optical computing optical control Stimulated emission Lighting control optical switches Voltage control Logic design Pulse inverters

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Recent advancements in optofluidics-based single-cell analysis: optical on-chip cellular manipulation, treatment, and property detection

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LAB ON A CHIP 2014年第7期14卷 1230-1245页

作者： Huang, Nien-Tsu Zhang, Hua-li Chung, Meng-Ting Seo, Jung Hwan Kurabayashi, Katsuo Natl Taiwan Univ Dept Elect Engn Taipei 10617 Taiwan Natl Taiwan Univ Grad Inst Biomed Elect & Bioinformat Taipei 10617 Taiwan Nantong Univ Sch Mech Engn Nantong 226019 Peoples R China Univ So Calif Dept Biomed Engn Los Angeles CA 90007 USA Hongik Univ Dept Mech & Syst Design Engn Seoul 121791 South Korea Univ Michigan Dept Mech Engn Ann Arbor MI 48109 USA Univ Michigan Dept Elect Engn & Comp Sci Ann Arbor MI 48109 USA

Cellular analysis plays important roles in various biological applications, such as cell biology, drug development, and disease diagnosis. Conventional cellular analysis usually measures the average response from a whole cell group. However, bulk measurements may cause misleading interpretations due to cell heterogeneity. Another problem is that current cellular analysis may not be able to differentiate various subsets of cell populations, each exhibiting a different behavior than the others. Single-cell analysis techniques are developed to analyze cellular properties, conditions, or functional responses in a large cell population at the individual cell level. Integrating optics with microfluidic platforms provides a well-controlled microenvironment to precisely control single cell conditions and perform non-invasive high-throughput analysis. This paper reviews recent developments in optofluidic technologies for various optics-based single-cell analyses, which involve single cell manipulation, treatment, and property detection. Finally, we provide our views on the future development of integrated optics with microfluidics for single-cell analysis and discuss potential challenges and opportunities of this emerging research field in biological applications.

关键词： cell heterogeneity Cells Single-Cell Analysis Integrated optics Microfluidics system-on-chip Disease diagnosis cell population

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Product assurance for instrumental projects in research laboratory: Galaxies, etoiles, physique, instrumentation (GEPI) 8

Product assurance for instrumental projects in research labo...

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Modeling, Systems engineering, and Project Management for Astronomy VIII 2018

作者： De Frondat Laadim, Fatima Jagourel, Pascal Frotin, Mickael Hammer, François Rodrigues, Myriam Puech, Mathieu Guinouard, Isabelle Chemla, Fanny Yang, Yanbin Fitzsimons, Ewan Parr-Burman, Phil Morris, Tim Dubbeldam, Marc Close, Madeline Middleton, Kevin Rousset, Gerard Kelz, Andreas Janssen, Annemieke Pragt, Johan Navarro, Ramon Larrieu, Marie El Hadi, Kacem Dohlen, Kjetil Dalton, Gavin Lewis, Ian GEPI Observatoire de Paris PSL University CNRS Place Jules Janssen Meudon92195 France UK Astronomy Technology Centre Science and Technology Facilities Council Royal Observatory Edinburgh Blackford Hill EdinburghEH9 3HJ United Kingdom Durham University-CfAI Department of Physics South Road DurhamDH1 3LE United Kingdom RALSPACE Science and Technology Facilities Council Rutherford Appleton Laboratory Harwell Campus Didcot OxfordshireOX11 0QX United Kingdom LESIA Observatoire de Paris PSL University CNRS Xxxx Place Jules Janssen Meudon92195 France AIP Leibniz-Institut für Astrophysik Potsdam An der Sternwarte 16 Potsdam14482 Germany NOVA NOVA Optical IR Instrumentation Group P.O. Box 2 AA Dwingeloo7990 Netherlands IRAP Université de Toulouse III-CNRS 9 avenue du Colonel Roche Toulouse Cedex 431028 France Aix Marseille Université-CNRS LAM Pôle de l'Étoile Site de Château-Gombert 38 rue F. Joliot-Curie Marseille Cedex 1313388 France University of Oxford Astrophysics Denys Wilkinson Building Keble Road OxfordOX1 3RH United Kingdom

ISBN: (数字)9781510619647

ISBN: (纸本)9781510619630

Product Assurance is an essential activity to support the design and construction of complex instruments developed for major scientific programs. The international size of current consortia in astrophysics, the ambitious and challenging developments, make the product assurance issues very important. The objective of this paper is to focus in particular on the application of Product Assurance Activities to a project such as MOSAIC, within an international consortium. The paper will also give a general overview on main product assurance tasks to be implemented during the development from the design study to the validation of the manufacturing, assembly, integration and test (MAIT) process and the delivery of the instrument. © 2018 SPIE.

关键词： Research laboratories

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engineering metalenses for planar optics and acoustics

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MATERIALS TODAY PHYSICS 2023年 39卷

作者： Oh, Beomseok Kim, Kyungtae Lee, Dongwoo Rho, Junsuk Pohang Univ Sci & Technol POSTECH Dept Mech Engn Pohang 37673 South Korea Pohang Univ Sci & Technol POSTECH Dept Chem Engn Pohang 37673 South Korea POSCO POSTECH RIST Convergence Res Ctr Flat Opt & Pohang 37673 South Korea

Metalens, a two-dimensional planar system composed of strategically engineered subwavelength structures, facilitates precise manipulation in the process of both light and sound. Benefiting from the synergy between theoretical exploration and cutting-edge fabrication in the past decade, metalenses have attracted considerable attention owing to their thin structure and large number of degrees of freedom. Herein, we comprehensively review recent developments in optical and acoustic metalenses. Initially, we provide an overview of the fundamental principles and design perspectives of metalenses. Subsequently, we discuss the current challenges affecting planar optical and acoustic technologies. Then, we introduce emerging applications that leverage the capabilities of metalenses. Finally, we summarize this review with a discussion of various perspectives to guide future works.

关键词： Metasurface Metalens optical metalens Acoustic metalens Imaging system

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ISDN LOOP EXTENSION USING A MID-SPAN AMPLIFIER

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INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS 1995年第3期8卷 219-224页

作者： ERKER, GJ DODDS, DE KRZYMIEN, WA David E. Dodds was born in Saskatoon Canada in 1945. He received the B. Eng. and MSc. degrees from the University of Saskatchewan in 1966 and 1968 respectively. He worked with Bell Northern Research (Ottawa) on PBX design in 1969 1972 and 1978. Since 1969 he has been with the University of Saskatchewan where he is currently Professor of Electrical Engineering. He teaches courses in electronics and communications and also presents short courses on the fundamentals of telephony. Current research interests are in data transmission signal processing architecture and frame synchronization for PCM and spread spectrum systems. He has been granted five patents relating to commercial products in delta-modulation telephone line interfacing and computer data transmission. In 1986 he was on sabbatical leave at BNR Inc. and worked with an ANSI committee on the standardization of FDDI-II a combined voice and data system. Mr. Dodds is a Registered Consulting Engineer in Saskatchewan. Witold A. Krzyden received his MSc. (Eng.) and Ph.D. degrees (both in Electrical Engineering) in 1970 and 1978 respectively from the Poznan Technical University in Poznan Poland. He was awarded the Minister's of Science and Technology Prize of Excellence for his Ph.D. thesis. From 1970 to 1978 he was a Research Engineer and Teaching Assistant and then from 1978 to 1980 an Assistant Professor of Electrical Engineering at the Poznan Technical University. In 1980 he won a Dutch Government Research Fellowship at the Twente University of Technology in Enschede the Netherlands for the year of 1980/1981. In the following year of 1981/82 he was a Research Assistant Professor there. From 1982 to 1986 he was an Assistant Professor of Electrical Engineering at Lakehead University in Thunder Bay Ontario Canada. In 1986 he joined the Univeristy of Alberta and Alberta Telecommunications Research Centre (now Telecommunications Research Laboratories or TRLabs) as an Associate Professor of Electrical Engineering. Currently he is a Professor of E

The 5.5 km range of the basic rate ISDN loop has been extended by using a negative impedance amplifier and by using a 2 wire/4 wire (2w/4w) amplifier. The negative impedance amplifier extends the range of the loop by 1.0 km, whereas the 2w/4w amplifier extends the range by 1.5 km at the expense of increased complexity. As part of the amplifer design, a resistor/capacitor network has been developed which closely matches the characteristic impedance of telephone cable. Error rate tests have been conducted using various lengths of cable and an operating ISDN line.

关键词： ISDN PHYSICAL LAYER BASIC RATE LOOP RANGE EXTENSION

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On the design of high voltage, high current repetitive opening switches utilizing Gate Turnoff Thyristors

On the design of high voltage, high current repetitive openi...

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Proceedings of the 26th Intersociety Energy Conversion engineering Conference - IECEC '91

作者： Podlesak, Thomas F. Carter, John L. McMurray, James A. US Army Electronic Technology and Devices Lab Fort Monmouth United States

Our Laboratory has demonstrated the feasibility of operating Gate Turnoff Thyristors(GTOs) in series to produce a repetitive opening and closing switch capable of operating at voltages higher than that of a single GTO. The next task is to produce a practical device capable of continuous operation at voltage levels in the tens of kilovolts. The immediate application is to replace gaseous components in the command charger of a high energy pulser system. Our laboratory is currently designing and building such a device. The design issues of such a device are substantial, with high voltage being the least significant, in the sense that optical triggering and standard isolation and insulation techniques can readily handle the system voltages. Control and instrumentation are critical since, for our design goal of 25 KV system voltage, twelve GTOs must be arrayed in series and synchronized in turning off and on, in repetitive time windows on the order of 100 nanoseconds each. Moreover, it is imperative that the possible failure of one device be anticipated and action taken to shutdown the system during this failure mode, again in a 100 nanosecond window. In failure mode, one component failing places all other components at risk, which can have disastrous consequences. Therefore, our design incorporates a computer actuated data acquisition and control system, capable of monitoring the voltage across each of the twelve GTOs and taking appropriate action to protect the system, automatically, during failure mode, with no intervention required from a human operator. Since the switch will operate nearly continuously, thermal management is a key issue. Liquid cooling is required, due to the high dissipation of GTOs. Water cooling presents problems in that electrical conductivity of the coolant can change and present a shorting path for the high voltage. Insulating oil may be used, but the heat transfer efficiency declines drastically, requiring larger, to the point of unwiedly, he

关键词： Electric Switches, Semiconductor

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Integrated green-grey-blue system: a bibliometric analysis-based review 5

Integrated green-grey-blue system: a bibliometric analysis-b...

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5th International Conference on Green Energy, Environment, and Sustainable Development, GEESD 2024

作者： Jia, Ruilan Fu, Chun Gan, Yuqun School of Infrastructure Engineering Nanchang University Jiangxi Nanchang330038 China Design and Research Institute of Nanchang University Jiangxi Nanchang330038 China School of Public Policy and Management Nanchang University Jiangxi Nanchang330038 China Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education Nanchang University Jiangxi Nanchang330038 China School of Civil Engineering and Architecture East China Jiaotong University Jiangxi Nanchang330100 China

ISBN: (纸本)9781510683006

The Integrated Green-Grey-Blue System (IGGBS) represents an advanced strategy for sustainable stormwater management, critically enhancing water resource efficiency and urban resilience. This study utilizes the Web of Science Core Database, R language’s Bibliometrix tool, and CiteSpace software to comprehensively review the research developments in IGGBS. The objective is to integrate international experiences and address current challenges and future directions. The findings indicate: (1) International research on IGGBS has shown consistent growth, with notable increases in China from 2020 to 2023, underscoring its significance in the development of sponge cities;(2) The majority of the studies are published in Q1 category journals of the Journal Citation Reports, predominantly authored by scholars from developed nations such as the USA, UK, and Germany, with fewer contributions from Chinese researchers;(3) IGGBS research is intricately linked with ecosystem services, climate change, urbanization, and resilience theory, trending towards more precise indicators and diverse objectives. Furthermore, the study highlights a gap between theoretical research and practical implementation, pointing to a lack of comprehensive exploration of coupling relationships and future uncertainties. It suggests the necessity to enhance evaluation systems, and foster interdisciplinary collaboration and public engagement, closely aligned with policy, to facilitate the broader adoption and management of IGGBS. © 2024 SPIE.

关键词： Climate change

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