Showing 581 - 600 results of 849 for search '"microwave"', query time: 0.05s Refine Results
  1. 581

    Numerical Analysis of the Fractional-Order Telegraph Equations by Omar Fouad Azhar, Muhammad Naeem, Fatemah Mofarreh, Jeevan Kafle

    Published 2021-01-01
    “…High-frequency telecommunications continuously receive significant attention in the industry due to a slew of radiofrequency and microwave communication networks. These technologies use transmission media to move information-carrying signals from one location to another. …”
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    Article
  2. 582

    Broadband absorber with dispersive metamaterials by Han WonHeum, Park Q-Han

    Published 2023-03-01
    “…A broadband absorber that utilizes a dispersive metamaterial and covers the entire microwave X-band (8–12 GHz) is proposed in the present study. …”
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    Article
  3. 583
  4. 584

    Improved Vlasov Antenna with Curved Cuts and Optimized Reflector Position and Shape by H. M. El Misilmani, M. Al-Husseini, K. Y. Kabalan

    Published 2015-01-01
    “…This paper presents a Vlasov antenna with curved cut shape and improved reflector position and geometry suitable for high power microwave applications. The curved shape of the proposed cut totally eliminates the sharp edges and angles present in Vlasov antennas with step and bevel cuts. …”
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    Article
  5. 585

    Brane-vector dark matter and its connection to inflation and primordial gravitational waves by Cao H. Nam, Tran N. Hung

    Published 2024-12-01
    “…Interestingly, the brane-vector dark matter could leave particular imprints on the cosmic microwave background (CMB) and the primordial gravitational waves. …”
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    Article
  6. 586

    RF Tomography in Free Space: Experimental Validation of the Forward Model and an Inversion Algorithm Based on the Algebraic Reconstruction Technique by V. Picco, T. Negishi, S. Nishikata, D. Spitzer, D. Erricolo

    Published 2013-01-01
    “…Its flexible forward model can be used in free-space by choosing an appropriate dyadic Green's function and can be translated in the microwave domain. Experimental data are used to validate a novel inversion scheme, based on the algebraic reconstruction technique. …”
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    Article
  7. 587

    Nano-ZnO Catalyzed Multicomponent One-Pot Synthesis of Novel Spiro(indoline-pyranodioxine) Derivatives by Harshita Sachdeva, Rekha Saroj, Diksha Dwivedi

    Published 2014-01-01
    “…The derivatives are obtained in moderate to excellent yield by one-pot three-component reaction of an isatin, malononitrile/ethylcyanoacetate, and 2,2-dimethyl-1,3-dioxane-4,6-dione in absolute ethanol under conventional heating and microwave irradiation. The catalyst was recovered by filtration from the reaction mixture and reused during five consecutive runs without any apparent loss of activity for the same reaction. …”
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    Article
  8. 588

    Symmetry Breaking as a Basis for Characterization of Dielectric Materials by Dubravko Tomić, Zvonimir Šipuš

    Published 2025-01-01
    “…This paper introduces a novel method for measuring the dielectric permittivity of materials within the microwave and millimeter wave frequency ranges. The proposed approach, classified as a guided wave transmission system, employs a periodic transmission line structure characterized by mirror/glide symmetry. …”
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    Article
  9. 589

    Photocatalytic Behavior of Supported Copper Double Salt: The Role of Graphene Oxide by Marjan E. Shabestari, Juan Baselga, Olga Martin

    Published 2022-01-01
    “…In this work, it has been found that the green microwave-assisted decoration of graphene by copper double salt (DS) enhances visible sunlight photocatalysis efficiency. …”
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    Article
  10. 590

    Superconducting quantum computing optimization based on multi-objective deep reinforcement learning by Yangting Liu

    Published 2025-01-01
    “…Optimum control of multi-process quantum computing can be achieved only by regulating the microwave pulse parameters of superconducting qubits, and such a set of global parameter values and control strategies are given.…”
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    Article
  11. 591

    Estimation Model of Soil Freeze-Thaw Erosion in Silingco Watershed Wetland of Northern Tibet by Bo Kong, Huan Yu

    Published 2013-01-01
    “…Based on the comprehensive analysis of the evaluation indices of soil FT erosion, we for the first time utilized the sensitivity of microwave remote sensing technology to soil moisture for identification of FT state. …”
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    Article
  12. 592

    Ultra-Wideband Fractal Ring Antenna for Biomedical Applications by Ilyas Saleem, Umair Rafique, Shobit Agarwal, Hüseyin Şerif SAVCI, Syed Muzahir Abbas, Subhas Mukhopadhyay

    Published 2023-01-01
    “…In UWB technology, short-range wireless communication is possible with low transceiving power, a characteristic that is particularly advantageous in the context of microwave and millimeter-wave (mmWave) medical imaging. …”
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    Article
  13. 593

    Reheating after swampland conjecture by Vahid Kamali

    Published 2020-01-01
    “…Temperature fluctuation map of cosmic microwave background (CMB) radiation and initial seeds of large scale structures (LSS) are explained by an inflationary period in a very early time. …”
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    Article
  14. 594

    Synthesis and Microbial Activity of Novel 3-Methyl-2-pyrazolin-5-one Derivatives by Mohamed S. Mostafa, Nasser M. Abd El-Salam, Othman Y. Alothman

    Published 2013-01-01
    “…A considerable increase in the reaction rate had been observed with better yield using microwave irradiation for the synthesis of compounds 2a, b, 3a–c, and 5a–f. …”
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    Article
  15. 595

    Phenomenological construction of metal photonic topological insulators based on theory of characteristic modes by Lili Dai, Jie Meng, Weiwen Li

    Published 2025-01-01
    “…Dielectric photonic crystals are usually used to construct electromagnetic topological insulators, while metal photonic crystals are easier to be manufactured and compatible with microwave circuits. Characteristic mode analysis (CMA) can provide the mode eigenvalue curves of conductor structures, while energy band theory determines the dispersion features of periodic structures. …”
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    Article
  16. 596

    Nonlocal Quantum Effects in Cosmology by Yurii V. Dumin

    Published 2014-01-01
    “…The same effect may be also relevant to the recent problem of the anomalous behavior of cosmic microwave background fluctuations at large angular scales.…”
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    Article
  17. 597

    Cholecystectomy of an Intrahepatic Gallbladder in an Ectopic Pelvic Liver: A Case Report and Review of the Literature by Rachel Mathis, Joshua Stodghill, Timothy Shaver, George Younan

    Published 2017-01-01
    “…After extensive workup and symptomatic treatment, cholecystectomy was recommended and performed via laparotomy and hepatotomy using microwave technology for parenchymal hepatic transection. …”
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    Article
  18. 598

    Determination of Lead in Saudi Arabian Imported Green Tea by ICP-MS by Ahmed Othman, Seham Al-Ansi, Mohammed Al-Tufail

    Published 2012-01-01
    “…Lead (Pb) in nine different Saudi Arabian imported green tea samples originated from China has been determined using inductively coupled plasma mass spectrometry (ICP-MS). Tea infusion and microwave acid digestion procedures are used for sample pre-treatment. …”
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  19. 599

    Design and validation of ultra-compact metamaterial-based biosensor for non-invasive cervical cancer diagnosis in terahertz regime. by Musa N Hamza, Mohammad Tariqul Islam, Sunil Lavadiya, Iftikhar Ud Din, Bruno Sanches, Slawomir Koziel, Md Shabiul Islam

    Published 2025-01-01
    “…It is most often diagnosed in the advanced stages as precancerous lesions are often symptom-free and difficult to identify. Microwave imaging, especially in terahertz (THz) range, is a convenient and noninvasive cancer detection tool. …”
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    Article
  20. 600

    Metasurface-Cladded Waveguide Filled With Magnetized Plasma by Mirko Magarotto, Luca Schenato, Marco Santagiustina, Andrea Galtarossa, Antonio-Daniele Capobianco

    Published 2025-01-01
    “…This technology targets microwave-driven plasma production, with the cladding metasurface enabling control over the cut-off frequency of the waveguide. …”
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    Article