Showing 901 - 920 results of 1,101 for search '"microwave"', query time: 0.06s Refine Results
  1. 901

    An Investigation for Heavy Metals’ Contamination in Farmers’ Fingernails: Case Study in Libya by Aiman M. Bobaker, Intisar Alakili, Elrashied E. Elkhidir, Sukiman B. Sarmani, Zaher Mundher Yaseen

    Published 2022-01-01
    “…Fingernail samples of the participants were collected, treated, and analyzed by inductively coupled plasma mass spectrometry (ICP-MS) for As, Cd, and Pb contents after microwave acid digestion. Results of this study indicated that the concentration levels of the investigated heavy metals in fingernail samples of both participating farmers and control group were in order of Pb > Cd > As. …”
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    Article
  2. 902

    NiO Nanoparticles: An Efficient Catalyst for the Multicomponent One-Pot Synthesis of Novel Spiro and Condensed Indole Derivatives by Harshita Sachdeva, Diksha Dwivedi, R. R. Bhattacharjee, Sarita Khaturia, Rekha Saroj

    Published 2013-01-01
    “…An efficient catalytic protocol for the synthesis of novel spiro[indoline-3,4′-pyrano[2,3-c]thiazole]carbonitriles and condensed thiazolo[5′′,4′′:5′,6′]pyrano[4′,3′:3,4]furo[2,3-b]indole derivatives is developed in a one-pot three-component approach involving substituted 1H-indole-2,3-diones, activated methylene reagent, and 2-thioxo-4-thiazolidinone under conventional heating and microwave irradiation. This paper describes the use of NiO nanoparticles as catalyst for the synthesis of novel spiro and condensed indole derivatives by Knoevenagel condensation followed by Michael addition. …”
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    Article
  3. 903

    Design and Validation of an Antipodal Vivaldi Antenna with Additional Slots by Marek Dvorsky, Harihara S. Ganesh, S. Sadhish Prabhu

    Published 2019-01-01
    “…The results of the desired antenna were simulated through extensive simulations performed in CST Microwave Studio®. The characteristics of all the antenna parameters are clearly studied and we are successful to achieve closed results between designed as well as experimented Vivaldi Antenna. …”
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    Article
  4. 904

    A New Variational Assimilation Method Based on Gradient Information from Satellite Data by Bo Zhong, Yun-Feng Wang, Gang Ma, Xin-Yuan Ma, Lu Yang

    Published 2017-01-01
    “…An ideal experiment of variational data assimilation is conducted using the Community Radiative Transfer Model (CRTM) and Advanced Microwave Sounding Unit-A (AMSU-A) data, indicating that only assimilating gradient information can eliminate the smooth systematic bias in observation data. …”
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    Article
  5. 905

    A DR Loaded Substrate Integrated Waveguide Antenna for 60 GHz High Speed Wireless Communication Systems by Nadeem Ashraf, Hamsakutty Vettikalladi, Majeed A. S. Alkanhal

    Published 2014-01-01
    “…The antenna structures are modeled using CST Microwave Studio and then the results are verified using another simulation software HFSS. …”
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    Article
  6. 906

    Synthesis, Spectroscopic Characterisation, and Biopotential and DNA Cleavage Applications of Mixed Ligand 4-N,N-Dimethylaminopyridine Metal Complexes by C. Surendra Dilip, K. Manikandan, D. Rajalaxmi (a) Subahashini, R. Thiruneelakandan

    Published 2013-01-01
    “…The mixed ligand transition metal complexes of 4-N,N-dimethylaminopyridine (DP) and chloride as primary and secondary ligands with the general formula [M(DP)3Cl3]; M = Cr(III) and Fe(III); [M′(DP)4Cl2]M′ = Co(II), Ni(II), Cu(II), and Cd(II) were synthesized in a microwave oven. The complexes were characterized by FT-IR and UV, 1HNMR, 13CNMR spectra, TG/DTG, and various physicoanalytical techniques. …”
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    Article
  7. 907

    Mass Transfer during Osmotic Dehydration of Tunisian Pomegranate Seeds and Effect of Blanching Pretreatment by Basma Khoualdia, Samia Ben-Ali, Ahmed Hannachi

    Published 2018-01-01
    “…The blanching pretreatments were carried out using two methods: blanching in a boiling water bath and in a microwave oven. The mass diffusion kinetic depends on time, temperature, hypertonic solution solid content, stirring speeds, and pretreatment process. …”
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    Article
  8. 908

    Model of 2D-imaging system using correlation-based reception for image synthesis of radio light sources by Petrosyan, Manvel Mher, Ryzhov, Anton Igorevich

    Published 2025-01-01
    “…In this article radio light refers to ultrawideband noise-like microwave radiation. Methods. To achieve this goal, a method for constructing an image is proposed and its implementation is tested using computer modeling of an imaging system. …”
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  9. 909
  10. 910

    Simulation of Novel NEMS Contact Switch Using MRTD with Alterable Steps by Wen-Ge Yu, Kang-Qu Zhou, Zheng-Zhong Wu, Ting-Hong Yang, Jing Zhao

    Published 2010-01-01
    “…In order to apply Radio Frequency Micro-nano-Electro-Mechanical System (MEMS/NEMS) technologies to produce miniature, high isolation, low insertion loss, good linear characteristic, and low power consumption microwave switches, we present a novel NEMS switch with nanoscaling in this paper through the analysis of electrics and mechanics of the RF switch. …”
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    Article
  11. 911

    All-dielectric carpet cloaks with three-dimensional anisotropy control by Maegawa Yuki, Nakata Yosuke, Sanada Atsushi

    Published 2023-06-01
    “…Realizable anisotropic permittivities of cubic and rectangular unit cells are numerically studied based on the relative permittivity and loss tangent of ɛ r = 2.9 and tan δ = 0.02 of ultra-violet curing resin measured at the microwave frequency. It is shown that the unit cell has little frequency dependence even with the anisotropy in the low frequency range where the effective medium approximation is valid. …”
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    Article
  12. 912

    High K Low Loss Dielectrics Co-Fireable with LTCC by Christina Modes, Stefan Malkmus, Frieder Gora

    Published 2002-01-01
    “…The majority of commercially available microwave dielectrics show increasing firing temperatures >200 °C which make them incompatible with Ag metallizations or show high dielectric loss which limit their usage in RF wireless applications. …”
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    Article
  13. 913

    Silicon photonic MEMS switches based on split waveguide crossings by Yinpeng Hu, Yi Sun, Ye Lu, Huan Li, Liu Liu, Yaocheng Shi, Daoxin Dai

    Published 2025-01-01
    “…Both elementary switch and a 64×64 switch array based on Benes topology are fabricated and characterized, demonstrating great potential for practical scenarios such as photonic interconnect/routing, Lidar and spectroscopy, photonic computing, as well as microwave photonics.…”
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  14. 914

    Effect of Tetrahydrofuran Extraction on Surface Functional Groups of Coking Coal and Its Wettability by Jian Yao, Huaijun Ji, Huazhang Lu, Tongtong Gao

    Published 2019-01-01
    “…Coking coal was extracted with tetrahydrofuran solvent using ultrasonic and microwave-assisted method at 50°C and atmospheric pressure. …”
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  15. 915
  16. 916

    Catalytic pathways for N-arylation of benzimidazoles: A comprehensive review by Anila Ghulam, Tooba Jabeen, Sana Aslam, Matloob Ahmad, Magdi E.A. Zaki

    Published 2025-01-01
    “…Metal-free techniques offer ecologically friendly options, and multicomponent reactions provide the benefit of convergent synthesis. Microwave-assisted reactions and photocatalyzed procedures have improved the efficiency, selectivity, and sustainability of N-arylation reactions. …”
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    Article
  17. 917

    Modeling the transport and anisotropy of energetic electrons in solar flares by Xiangliang Kong, Xiangliang Kong, Xiangliang Kong, Hao Ning, Yao Chen, Yao Chen

    Published 2025-01-01
    “…In the moderate diffusion regime, the precipitation fraction is highest and we expect intense nonthermal HXR and microwave emissions at the footpoints. With no or weak pitch-angle scattering, the velocity space distribution can be highly anisotropic both in the looptop and loopleg regions. …”
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  18. 918

    Weather Features Associated with Aircraft Icing Conditions: A Case Study by Sergio Fernández-González, José Luis Sánchez, Estíbaliz Gascón, Laura López, Eduardo García-Ortega, Andrés Merino

    Published 2014-01-01
    “…Observations in this case were from a MP-3000A microwave radiometric profiler, which acquired atmospheric temperature and humidity profiles continuously every 2.5 minutes. …”
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    Article
  19. 919

    Design of Low-Cost Full W-Band 8th Harmonic Mixers for Frequency Extension of Spectrum Analyzer by Jian Guo, Kaiyi Zang, Zihan Zhang, Liang Zhao, Jie Xu, Zhengbin Xu

    Published 2023-01-01
    “…High-order harmonic mixer is popular for frequency extension of spectrum analyzer (SA) from microwave to millimeter-wave or even terahertz band. …”
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    Article
  20. 920

    A Compact, Portable Device for Microscopic Magnetic Imaging Based on Diamond Quantum Sensors by Alex Shaji, Kevin J. Rietwyk, Islay O. Robertson, Philipp Reineck, David A. Broadway, Jean‐Philippe Tetienne

    Published 2025-01-01
    “…It relies on a specially designed sensor head that directly integrates the diamond sensor while incorporating a microwave antenna and all necessary optical components. …”
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    Article