Showing 801 - 820 results of 1,101 for search '"microwave"', query time: 0.04s Refine Results
  1. 801

    A High Selectivity, Miniaturized, Low Profile Dual-Band Bandpass FSS with a Controllable Transmission Zero by Wenxing Li, Yuanyuan Li

    Published 2017-01-01
    “…The equivalent circuit model of the FSS and its operating principle are presented and analyzed based on the microwave filter theory. The prototype of this FSS is simulated, fabricated, and measured, and its theoretical analysis, simulation, and measurement results show a good agreement. …”
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    Article
  2. 802

    Investigation on Harmonic Tuning for Active Ku-Band Rectangular Dielectric Resonator Antennas by Anda Guraliuc, Giuliano Manara, Paolo Nepa, Giuseppe Pelosi, Stefano Selleri

    Published 2008-01-01
    “…Simulation results show that the DRA shape factor can be used to provide a fine tuning of the DRA input impedance both at the fundamental frequency and its first harmonics, so synthesizing the proper load for the optimization of the microwave amplifier power-added efficiency (PAE).…”
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  3. 803

    Compact Two-Section Half-Wave Balun Based on Planar Artificial Transmission Lines by Changjun Liu, Zhenyu Yin, Yilan Yang, Wen Huang

    Published 2015-01-01
    “…The balun features excellent amplitude and phase balance in microwave power combining and a reasonable bandwidth of the return loss as well.…”
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  4. 804

    Design of a Narrow Bandwidth Bandpass Filter Using Compact Spiral Resonator with Chirality by Weiping Li, Zongxi Tang, Xin Cao

    Published 2016-01-01
    “…By comparing to other filters in the references, it is shown that the proposed filter has the advantage of skirt selectivity and compact size, so it can be integrated more conveniently in modern wireless communication systems and microwave planar circuits.…”
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    Article
  5. 805

    Assessment of Heavy and Toxic Metals in the Blood and Hair of Saudi Arabia Smokers Using Modern Analytical Techniques by Majed Alrobaian, Hassan Arida

    Published 2019-01-01
    “…Prior to the analysis, the blood and hair samples of Saudi Arabia smokers were collected, treated, and digested by microwave digestion system. The number of cigarettes per day as well as the smoking period was taken in consideration in this study. …”
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  6. 806

    Theory of Periodic Sequence: A Generalized Formalism of Maxwell’s Equations in Discrete Transform Domain by Ben You, Ke Wu

    Published 2024-12-01
    “…The fundamental solutions of EM periodic sequential excitation are elucidated and corroborated by radio-frequency (RF)/microwave measurements. This involves potential applications in the analysis of broadband RF transmission and the design of high-speed RF devices.…”
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  7. 807

    Radiation Characteristics of 3D Resonant Cavity Antenna with Grid-Oscillator Integrated Inside by L. A. Haralambiev, H. D. Hristov

    Published 2014-01-01
    “…It is found that the use of 3D antenna resonant cavity in case of small or medium gain microwave active cavity antenna leads to effective and stable power combining and radiation. …”
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  8. 808

    Video Classification and Adaptive QoP/QoS Control for Multiresolution Video Applications on IPTV by Huang Shyh-Fang

    Published 2012-01-01
    “…Worldwide Interoperability for Microwave Access (WIMAX) is a good candidate for delivering video signals because through WIMAX the delivery quality based on the quality-of-service (QoS) setting can be guaranteed. …”
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  9. 809

    X-Parameter Measurement of Pulse-Compression Nonlinear Transmission Lines by Ming Li, Rony E. Amaya, Robert G. Harrison, N. Garry Tarr

    Published 2010-01-01
    “…X-parameters provide a powerful and eminently practical solution for interoperable measurement, modeling, and simulation of nonlinear microwave and RF components. Using X-parameters to do large-signal measurements has been brought into the spotlight. …”
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  10. 810
  11. 811

    Anti-collision online early warning method for construction machinery around transmission line by Chaojie CHEN, Wei XIE, Linwei HE, Qiang TIAN, Runping HE, Zhefei WANG

    Published 2022-05-01
    “…The transmission line has long transmission distance and complex channel environment.Impacts caused by large construction machinery occur from time to time.The existing anti-collision monitoring scheme of transmission line mainly depends on manual implementation, which not only consumes a lot of human resources, but also is difficult to ensure the monitoring coverage.Therefore, an anti-collision on-line early warning method for construction machinery around the transmission line was proposed.This method innovatively used intelligent sensors and compressed sensing algorithm to realize the automatic on-line early warning of construction machinery threats in the transmission line channel.The pixel distribution characteristics, shape characteristics and distance characteristics of the target were collected by the camera module and microwave ranging module, and transmitted to the background.The background server used the established offline feature target database to realize the research and judgment results of the target through compressed sensing algorithm, and sent out early warning to the threatening target in time.The experimental results show that the recognition accuracy of the proposed algorithm can reach 96.34%, and can provide reliable early warning results for the transmission inspection department.…”
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  12. 812

    Biological Reduction of Perchlorate from Spent Modified Reed Mediated by an Enriched Microbial Culture by Salem Baidas, Khaled Al-Deyain, Xiaoguang Meng, Baoyu Gao

    Published 2023-01-01
    “…The secondary aim of this research was the development and testing of a microwave-assisted extraction (MAE)-facilitated accurate perchlorate quantitation method. …”
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  13. 813

    Synthesis and Antidepressant Activity of Some New 5-(1H-Indol-3-yl)-3-(substituted aryl)-4,5-dihydroisoxazoline Derivatives by Pravin O. Patil, Sanjay B. Bari

    Published 2013-01-01
    “…In an attempt to identify potential lead antidepressant agents, a number of indole molecules, incorporating isoxazoline, were synthesized by microwave-assisted synthesis. The antidepressant activity of the synthesized compounds (3a–3n) was evaluated by forced swim test in mice and their locomotor activity was assessed using actophotometry. …”
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  14. 814

    The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved Methods by Meng Wang, Guizhen Lu

    Published 2021-01-01
    “…The contrast source inversion (CSI) is an effective method for solving microwave imaging problems which is widely utilized. …”
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  15. 815

    Biomass derived carbon/platinum nanoparticles as electrocatalyst for the hydrogen evolution by Shimaa M. Ali

    Published 2025-02-01
    “…Platinum nanoparticles (Pt NPs) is successively prepared by the microwave-assistant citrate method on a biomass-based support, and characterized by X-rays diffraction, scanning and transmission electron microscopy. …”
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  16. 816

    Using an Ionic Liquid as the Porogen in the Preparation of Methacrylate-Based Monolith in Capillary Liquid Chromatography by Chen Na, Chen Jun, Liu Kun-Feng, Bai Lian-Yang, Zhang Yu-Ping

    Published 2014-09-01
    “…A methacrylate monolith was prepared inside a fused silica capillary column by microwave irradiation using an ionic liquid (1-hexyl-3-methylimidazolium tetrafluoroborate) as the porogenic solvent. …”
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  17. 817
  18. 818

    Versatile parallel signal processing with a scalable silicon photonic chip by Shihan Hong, Jiachen Wu, Yiwei Xie, Xiyuan Ke, Huan Li, Linyan Lyv, Yingying Peng, Qingrui Yao, Yaocheng Shi, Ke Wang, Leimeng Zhuang, Pan Wang, Daoxin Dai

    Published 2025-01-01
    “…This design offers low loss, high scalability, and simplified control, enabling advanced functionalities such as accurate microwave reception, narrowband microwave photonic filtering, wide-bandwidth arbitrary waveform generation, and high-speed parallel optical computing without the need for tuning elements calibration. …”
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  19. 819

    Antimicrobial Activities of Polysaccharide-Rich Extracts from the Irish Seaweed <i>Alaria esculenta</i>, Generated Using Green and Conventional Extraction Technologies, Against Foo... by Ailbhe McGurrin, Rahel Suchintita Das, Arturo B. Soro, Julie Maguire, Noelia Flórez Fernández, Herminia Dominguez, Maria Dolores Torres, Brijesh K. Tiwari, Marco Garcia-Vaquero

    Published 2025-01-01
    “…This study investigates the antimicrobial activity of compounds produced by the Irish seaweed <i>Alaria esculenta</i> against <i>Escherichia coli</i> and <i>Listeria innocua</i>, bacterial species which are relevant for food safety. Microwave-assisted extraction (MAE), ultrasound-assisted extraction (UAE), ultrasound–microwave-assisted extraction (UMAE), and conventional extraction technologies (maceration) were applied to generate extracts from <i>A. esculenta</i>, followed by their preliminary chemical composition (total phenolic content, total protein content, total soluble sugars) and antimicrobial activity (with minimum inhibitory concentration determined by broth microdilution methods), examining also the molecular weight distribution (via high performance size exclusion chromatography) and oligosaccharide fraction composition (via high-performance liquid chromatography) of the polysaccharides, as they were the predominant compounds in these extracts, aiming to elucidate structure–function relationships. …”
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  20. 820

    Gigantic Tellegen responses in metamaterials by Qingdong Yang, Xinhua Wen, Zhongfu Li, Oubo You, Shuang Zhang

    Published 2025-01-01
    “…Here, we report the realization of Tellegen metamaterials in the microwave region through a judicious combination of subwavelength metallic resonators, gyromagnetic materials, and permanent magnets. …”
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