Showing 541 - 560 results of 849 for search '"microwave"', query time: 0.05s Refine Results
  1. 541

    Pencil Beam Planar Ka-Band Antenna Array Using Waveguide Displaced Radiators Sections for Millimeter Wave Applications by Hany S. Hussein, Mohamed Ismeil, M. S. Yasseen, Yuri E. Sedelnikov, Mohamed N. Shaaban

    Published 2025-01-01
    “…The proposed antenna has been carefully studied using CST microwave studio software. Key results of the proposed design include a main lobe directivity of 29.9 dBi, a side lobe level (SSL) of -14.8 dB, width of radiation pattern of 3.6&#x00B0; at 37.5 GHz, and an impedance bandwidth of <inline-formula> <tex-math notation="LaTeX">$S_{11} \lt -10$ </tex-math></inline-formula> dB from 28 to 34.4 GHz and 34.9 to 37.9 GHz, validating the antenna&#x2019;s effectiveness.…”
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  2. 542

    Drying Kinetics, Physicochemical Properties and Sensory Quality of the Instant Foxtail Millet as Affected by Drying Methods by Yingqiang Wang, Hongxia Zhao, Xi Song, Wenjie Zhang, Feng Yang

    Published 2022-02-01
    “…The instant foxtail millet was prepared using microwave vacuum drying (MVD), microwave-hot air drying (MHAD), hot air drying (HAD) and traditional roasting (TR). …”
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    Article
  3. 543

    Estimation of 1 km Dawn–Dusk All-Sky Land Surface Temperature Using a Random Forest-Based Reanalysis and Thermal Infrared Remote Sensing Data Merging (RFRTM) Method by Yaohai Dong, Xiaodong Zhang, Xiuqing Hu, Jian Shang, Feng Zhao

    Published 2025-01-01
    “…Two widely applied approaches to derive such LST data are merging thermal infrared remote sensing (TIR)–passive microwave remote sensing (PMW) observations and merging TIR reanalysis data. …”
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    Article
  4. 544

    Design and Analysis of Compact High–Performance Lithium–Niobate Electro–Optic Modulator Based on a Racetrack Resonator by Zixin Chen, Jianping Li, Weiqin Zheng, Hongkang Liu, Quandong Huang, Ya Han, Yuwen Qin

    Published 2025-01-01
    “…With the ever-growing demand for high-speed optical communications, microwave photonics, and quantum key distribution systems, compact electro-optic (EO) modulators with high extinction ratios, large bandwidth, and high tuning efficiency are urgently pursued. …”
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    Article
  5. 545

    Bismuth-Remaining Cupellation Fire Assay Preconcentration Combined with Inductively Coupled Plasma Mass Spectrometry for the Simultaneous Determination of Ultratrace Au, Pt, Pd, Ru... by Wenshan Ni, Xiangju Mao, Mingxing Yao, Qiliang Sun, Xiaorui Guo, Hongli Zhang, Lu Liu

    Published 2021-01-01
    “…After the Bi granule was microwave-digested by aqua regia (40%, v/v), 197Au, 195Pt, 106Pd, 101Ru, 103Rh, and 193Ir in the sample solution were determined by ICP-MS. …”
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    Article
  6. 546

    Computer-Aided Design of Elliptically Focused Bootlace Lens for Multiple Beams by G. S. Tomar

    Published 2007-01-01
    “…The design of elliptically focused microwave bootlace lens is investigated and improved design is proposed. …”
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    Article
  7. 547

    The Existence and Effect of Dark Energy Redshift on Cosmological Age by Riccardo C. Storti

    Published 2020-01-01
    “…A derivation of Cosmological Age explicitly constrained by Cosmic Microwave Background Radiation (CMBR) is presented, demonstrating that the correct value of Cosmological Age is equal to the Hubble Age. …”
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  8. 548

    A Novel Green Synthesis of Thalidomide and Analogs by Ellis Benjamin, Yousef M. Hijji

    Published 2017-01-01
    “…Described herein is an efficient microwave irradiation green synthesis method that allows preparation of thalidomide and its analogs in a one-pot multicomponent synthesis system. …”
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    Article
  9. 549

    Shopping for Health: A Menu for One by Morgan Denhard, Wendy Dahl

    Published 2013-04-01
    “…Whether you pop a dish into the microwave after a busy day or spend time cooking a special meal for yourself, shopping for and preparing healthy, low-cost meals for one can be easy and enjoyable with just a little bit of planning. …”
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  10. 550

    Minimized Low-Profile Wideband Antennas Using High Impedance Surface by Yizhu Shen

    Published 2017-01-01
    “…This paper proposes minimized low-profile wideband antenna by employing high impedance surface (HIS), for wireless application scenarios at radio frequency, microwave, and even terahertz. To validate this concept with low cost and easy measurement, two prototypes at radio frequency are fabricated and tested. …”
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  11. 551

    Paper-Based Sensors: Fantasy or Reality? by Ghenadii Korotcenkov

    Published 2025-01-01
    “…It is shown that paper has properties that make it possible to develop a wide variety of paper-based sensors, such as SERS, colorimetric, fluorescent, conductometric, capacitive, fiber-optic, electrochemical, microfluidic, shape-deformation, microwave, and various physical sensors. The use of paper in the manufacturing of various sensors opens up new possibilities both in terms of new approaches to their manufacturing and in terms of new areas of their application. …”
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  12. 552

    Radio Frequency Numerical Simulation Techniques Based on Multirate Runge-Kutta Schemes by Jorge F. Oliveira, José C. Pedro

    Published 2012-01-01
    “…Electronic circuit simulation, especially for radio frequency (RF) and microwave telecommunications, is being challenged by increasingly complex applications presenting signals of very different nature and evolving on widely separated time scales. …”
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  13. 553

    Advanced Copper Oxide Chemical and Green Synthesis: Characterization and Antibacterial Evaluation by Ecaterina Magdalena Modan, Adriana-Gabriela Schiopu, Sorin Georgian Moga, Denis Aurelian Negrea, Daniela Istrate, Ion Ciuca, Mihai Oproescu

    Published 2024-12-01
    “…The CuO synthesized via microwave and ultrasound methods displayed superior crystallinity compared to commercial CuO. …”
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  14. 554

    Image Transmission Utilizing Amplitude Modulation in Rydberg Atomic Antenna by Peng Zhang, Shaoxin Yuan, Mingyong Jing, Jinpeng Yuan, Hao Zhang, Linjie Zhang

    Published 2024-01-01
    “…Microwave electric field precision measurement based on Rydberg atomic quantum coherence effect has rapidly advanced in recent years, capitalizing on its high sensitivity, broad bandwidth, and traceability. …”
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  15. 555

    Large-Angle Anomalies in the CMB by Craig J. Copi, Dragan Huterer, Dominik J. Schwarz, Glenn D. Starkman

    Published 2010-01-01
    “…We review the recently found large-scale anomalies in the maps of temperature anisotropies in the cosmic microwave background. These include alignments of the largest modes of CMB anisotropy with each other and with geometry and direction of motion of the solar ssystem, and the unusually low power at these largest scales. …”
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  16. 556

    Calculation of Effective Earth Radius and Point Refractivity Gradient in UAE by Abdulhadi Abu-Almal, Kifah Al-Ansari

    Published 2010-01-01
    “…The obtained values are used to investigate their impact on the design of microwave links. The cumulative distribution of the refractivity gradient in the first 65 meters above the ground surface, the monthly distribution for the median value of the k-factor, as well as their comparison with the ITU-maps are provided. …”
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  17. 557

    Broadband Waveguide Feed for Parabolic Reflectors by P. Bhushan Mital

    Published 1994-01-01
    “…The broadband requirement in microwave systems has necessitated attention on components that can operate over frequency ranges far broader than those of standard rectangular waveguides. …”
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  18. 558

    Substituent Effects on Regioselectivity of the Diels-Alder Reactions: Reactions of 10-Allyl-1,8-dichloroanthracene with 2-Chloroacrylonitrile, 1-Cyanovinyl Acetate and Phenyl Vinyl... by Mujeeb A. Sultan, Usama Karama

    Published 2016-01-01
    “…The reactions proceeded under microwave condition in xylene. Configurations of these isomers have been assigned with the help of NMR spectra. …”
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  19. 559

    Ultrasonicated Synthesis of N-Benzyl-2,3-substituted Morpholines, via the Mitsunobu Diol Cyclisation by B. Jayachandra Reddy, M. C. Somasekhara Reddy

    Published 2010-01-01
    “…A facile five step synthesis of N-benzyl-2,3-substituted morpholines (i-iii) was performed. The key steps were microwave assisted Friedel-crafts acylation and diol cyclization carried out via an ultra sonication of Mitsunobu reaction using DEAD (diethylazodicarboxylate), TPP in THF for 1 h. …”
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  20. 560

    Neutrino Mass from Cosmology by Julien Lesgourgues, Sergio Pastor

    Published 2012-01-01
    “…We show how the analysis of current cosmological observations, such as the anisotropies of the cosmic microwave background or the distribution of large-scale structure, provides an upper bound on the sum of neutrino masses of order 1 eV or less, with very good perspectives from future cosmological measurements which are expected to be sensitive to neutrino masses well into the sub-eV range.…”
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