Showing 381 - 400 results of 848 for search '"high frequency"', query time: 0.05s Refine Results
  1. 381

    Clinical Accuracy of Instrument-Read SARS-CoV-2 Antigen Rapid Diagnostic Tests (Ag-IRRDTs) by Ali Umit Keskin, Pinar Ciragil, Aynur Eren Topkaya

    Published 2022-01-01
    “…The lower sensitivity of certain brands of Ag-IRRDTs can be overcome in high prevalence areas with high frequency of testing. New SARS-CoV-2 variants are major concern for current and future diagnostic performance of these tests.…”
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    Article
  2. 382

    Dynamic Responses of the Metro Train’s Bogie Frames: Field Tests and Data Analysis by Xuhui He, Kehui Yu, Chenzhi Cai, Yunfeng Zou

    Published 2020-01-01
    “…The spectral analysis and time-frequency representations show that noise components exist in the high-frequency domain of the original signal, especially for the acceleration signal of the motor bogie frame. …”
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    Article
  3. 383

    Compact Microstrip Bandpass Diplexer Based on Twist Revised Split Ring Resonators by Jian Li, Yongjun Huang, Xuefeng Zhao, Guangjun Wen

    Published 2015-01-01
    “…Based on the twist revised split ring resonators (TR-SRRs) inspired filter unit a microstrip bandpass diplexer with highly compact size and high frequency selection and isolation properties is synthesized and systematically characterized. …”
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    Article
  4. 384

    Can a single coastal tide gauge help predict internal solitary wave activity offshore by Jean-Baptiste Roustan, Lucie Bordois, Jesús García-Lafuente, Franck Dumas, Francis Auclair, Xavier Carton

    Published 2025-01-01
    “…They have typical wavelengths of hundreds of meters and tens of minutes periods, requiring high resolution and high frequency measurements for their sampling. But such in-situ measurements are scarce and ISWs remain largely unpredictable. …”
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    Article
  5. 385

    A CNN-Based Microwave Imaging System for Detecting Watermelon Ripeness by Zachary M. Choffin, Lingyan Kong, Yu Gan, Nathan Jeong

    Published 2025-01-01
    “…In this paper, a S- and C-band microwave imaging system that utilizes DAS (Delay and Sum) beamforming with an automated high-frequency switching network is built to scan watermelons and determine their ripeness. …”
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    Article
  6. 386

    Dynamic Response of Wheel-Rail Interaction at Rail Weld in High-Speed Railway by Boyang An, Ping Wang, Jieling Xiao, Jingmang Xu, Rong Chen

    Published 2017-01-01
    “…However, short-wave irregularities can easily initiate and develop in rail weld due to the limitation of welding technology and thus rail weld has been a main high-frequency excitation and is responsible for deterioration of track components. …”
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    Article
  7. 387

    Comparative Study of Crosstalk Reduction Techniques in RF Printed Circuit Board Using FDTD Method by Rajeswari Packianathan, Raju Srinivasan

    Published 2015-01-01
    “…The numerical results are compared with simulation results, where the variants are simulated using an Ansoft high-frequency structure simulator. The analysis and simulation results are experimentally validated by fabricating a prototype and establishing a good correspondence between them. …”
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    Article
  8. 388

    Resonant Frequency Calculation and Optimal Design of Peano Fractal Antenna for Partial Discharge Detection by Jian Li, Changkui Cheng, Lianwei Bao, Tianyan Jiang

    Published 2012-01-01
    “…Ultra-high-frequency (UHF) approaches have caught increasing attention recently and have been considered as a promising technology for online monitoring partial discharge (PD) signals. …”
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    Article
  9. 389

    Synchronous Stability of Four Homodromy Vibrators in a Vibrating System with Double Resonant Types by Xueliang Zhang, Chao Li, Zhihui Wang, Shiju Cui

    Published 2018-01-01
    “…This paper can provide a theoretical reference for designing a type of new high-frequency vibrating mill.…”
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    Article
  10. 390

    Hardware in the Loop Testing of Adaptive Inertia Weight PSO-Tuned LQR Applied to Vehicle Suspension Control by Joshua Sunder David Reddipogu, Vinodh Kumar Elumalai

    Published 2020-01-01
    “…Moreover, the cumulative power spectral density (CPSD) of vehicle body acceleration assessed in both low- and high-frequency regions manifests the significant improvement in the ride comfort.…”
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    Article
  11. 391

    Integrating Bus Holding Control Strategies and Schedule Recovery: Simulation-Based Comparison and Recommendation by Weitiao Wu, Ronghui Liu, Wenzhou Jin

    Published 2018-01-01
    “…Using simulation for a high-frequency bus line in Guangzhou, China, schedule- (SH) and headway-based holding (HH) control strategies are compared under various operational settings in the context of schedule recovery. …”
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    Article
  12. 392

    Shaking Table Test of a RC Frame with EPSC Latticed Concrete Infill Wall by Baizan Tang, Xiaojun Li, Su Chen, Lihong Xiong

    Published 2017-01-01
    “…The experimental results indicate that the designed RC frame with EPSC latticed concrete infill wall has satisfactory seismic performance subjected to earthquakes, and the seismic responses of the model structure are more sensitive to input motions with more high frequency components and long duration. The EPSC latticed concrete infill wall provided high lateral stiffness so that the walls can be equivalent to a RC shear wall. …”
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    Article
  13. 393

    A Hybrid Technique Based on the Combination of Multilevel Fast Multipole Algorithm and the Geometrical Theory of Diffraction by María-Jesús Algar, Javier Moreno, Iván González, Lorena Lozano, Felipe Cátedra

    Published 2014-01-01
    “…This strategy is based on the combination of the rigorous method multilevel fast multipole algorithm (MLFMA) and the high frequency technique geometrical theory of diffraction (GTD). …”
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    Article
  14. 394

    Deep convolutional neural networks for double compressed AMR audio detection by Aykut Büker, Cemal Hanilçi

    Published 2021-06-01
    “…Firstly, double compression has a considerable impact on the high frequency components of the signal. Secondly, the proposed system yields great performance independent of the recording device or environment. …”
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    Article
  15. 395

    Novel Miniaturized Octaband Antenna for LTE Smart Handset Applications by Haixia Liu, Bo Lu, Long Li

    Published 2015-01-01
    “…Subsequently, the wide bandwidth in high-frequency bands covering from 1710 MHz to 2690 MHz (DCS1800/PCS1900/WCDMA2100/LTE2300/LTE2500) is contributed by both structures. …”
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  16. 396

    Research on a New Control System Based on L1 Adaptive Control Scheme for the Voice Coil Motor by Huaiguo Jing, Ying Li, Bo Li, Shuo Huang, RuiDian Zhan, Hao Li, Xuexi Zhang

    Published 2022-01-01
    “…The results show that the L1 adaptive control method effectively suppresses the high-frequency interference caused by the voice coil motor in operation, can control the tracking error to gradually converge and so the tracking effect is better, and has strong robustness to the perturbation of system parameters. …”
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  17. 397

    Temporomandibular Dysfunction and Oral Parafunctions in Late Adolescence by Liset María Frías Figueredo, Deneb Nerey Arango, Ileana Grau León, Rogelio Cabo García

    Published 2012-06-01
    “…<strong><br />Conclusions</strong>: There was a high frequency of temporomandibular dysfunction in this population.…”
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    Article
  18. 398

    Experimental Methods Applied in a Study of Stall Flutter in an Axial Flow Fan by John D. Gill, Vincent R. Capece, Ronald B. Fost

    Published 2004-01-01
    “…In this investigation casing mounted high frequency response pressure transducers are used to characterize the part-speed stall flutter response of a single stage unshrouded axial-flow fan. …”
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    Article
  19. 399

    Vibration Characteristics Induced by Cavitation in a Centrifugal Pump with Slope Volute by Ning Zhang, Minguan Yang, Bo Gao, Zhong Li

    Published 2015-01-01
    “…Also, it is noted that high frequency signals almost increase simultaneously with cavitation occurring, which can be used to detect cavitation in centrifugal pump.…”
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  20. 400

    IL-33 Acts to Express Schaffer Collateral/CA1 LTP and Regulate Learning and Memory by Targeting MyD88 by Tomoyuki Nishizaki

    Published 2017-01-01
    “…Interleukin-33 (IL-33) is recognized to transmit a signal through a heterodimeric receptor complex ST2/interleukin-1 receptor accessory protein (IL-1RAcP) bearing activation of myeloid differentiation factor 88 (MyD88). High-frequency stimulation to the Schaffer collateral induced long-term potentiation (LTP) in the CA1 region of hippocampal slices from wild-type control mice. …”
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    Article