Showing 421 - 440 results of 848 for search '"high frequency"', query time: 0.07s Refine Results
  1. 421

    Study on Bond Defect Detection in Grouted Rock Bolt Systems under Pullout Loads by Shuisheng Yu, Leilei Niu, Jin Chen, Yawei Wang, Honghao Yang

    Published 2022-01-01
    “…The debonding length increased exponentially with the amplitude ratio (Q) of low frequency to high frequency, and the Q value could be used as the quantitative index of debonding length. …”
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  2. 422

    EEG personal recognition based on ‘qualified majority’ over signal patches by Andrea Panzino, Giulia Orrù, Gian Luca Marcialis, Fabio Roli

    Published 2022-01-01
    “…These two aspects are connected because the shorter the epoch’s duration, the lower the contribution of the low‐frequency sub‐bands while enhancing the high‐frequency sub‐bands. However, it is well known that the former characterises the inner brain activity in resting or unconscious states. …”
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  3. 423

    Novel Registration and Fusion Algorithm for Multimodal Railway Images with Different Field of Views by Baoqing Guo, Xingfang Zhou, Yingzi Lin, Liqiang Zhu, Zujun Yu

    Published 2018-01-01
    “…Inverse Contourlet transform to low frequency subband coefficient fused with total variation model and high frequency subband coefficients fused with local region energy is used to reconstruct the fused image. …”
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  4. 424

    Compact Quadband Bandstop Filter Based on Concentric Split Ring Resonators with Perturbation for Multifunctional Wireless Systems by Pierre Moukala Mpele

    Published 2022-01-01
    “…The filter is designed, optimized, and analyzed using High-Frequency Structural Simulator (HFSS). A good agreement is observed between simulated and experimental results. …”
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  5. 425

    Recommendations for dispensing magnesium products in pharmacy practice and primary health care by Piotr Merks, Urszula Religioni, Marta Jakubowska, Sainul Abideen Parakkal, Suhaj Abdulsalim, Agnieszka Neumann-Podczaska, Beata Chełstowska, Mazhuvanchery Kesavan Unnikrishnan, Alicja Szatko, Piotr Glinicki, Shabeer Ali Thorakkattil, Zbigniew Doniec, Regis Vaillancourt, Dagmara Hering

    Published 2024-12-01
    “…The results of studies on the relationships between the occurrence of these diseases and magnesium deficiency helped identify the groups of patients who could benefit from this element. Considering the high frequency of patients using community pharmacy services, pharmacists present a group of medical professionals that can readily diagnose a potential magnesium deficiency in a relatively easy manner and can recommend supplementation in the diet or magnesium deficiency treatment with medicinal products when there are symptoms. …”
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  6. 426

    SPOP Inhibition of Endometrial Carcinoma and Its Clinicopathological Relationship by Qing Zhu, Guanghui Zhang, Mingyang Tang, Rumin Zheng, Huaiyong Gan

    Published 2022-01-01
    “…SPOP (speckle-type POZ protein) has changed in EC with a statistically high frequency. This research may play a crucial role in the initiation and progression of EC, ultimately leading to fresh therapeutic targets. …”
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  7. 427

    Conv‐ELSTM: An ensemble deep learning approach for predicting short‐term wind power by Guibin Wang, Xinlong Huang, Yiqun Li, Hong Wang, Xian Zhang, Jing Qiu

    Published 2024-12-01
    “…The framework leverages a data‐driven approach to identify the intrinsic components of wind power data, including high‐frequency and low‐frequency components. A convolutional layer‐based feature fusion network is then established to properly extract important information from irrelevant wind energy features. …”
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  8. 428

    Electromagnetic Interference from Swimming Pool Generator Current Causing Inappropriate ICD Discharges by Edward Samuel Roberto, Thein Tun Aung, Atif Hassan, Abdul Wase

    Published 2017-01-01
    “…Intracardiac electrograms revealed unique, high-frequency signals at exactly 120 msec suggestive of EMI from a strong external source of alternating current. …”
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  9. 429

    Analysis and Forecast of a Tornadic Thunderstorm Using Multiple Doppler Radar Data, 3DVAR, and ARPS Model by Edward Natenberg, Jidong Gao, Ming Xue, Frederick H. Carr

    Published 2013-01-01
    “…Because these three radars are located far away from the targeted storm, they were overlooked by previous studies. High-frequency intermittent 3DVAR analyses are performed using the data from five radars that together provide a more complete picture of this storm. …”
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  10. 430

    A Novel Approach of Impulsive Signal Extraction for Early Fault Detection of Rolling Element Bearing by Hu Aijun, Lin Jianfeng, Sun Shangfei, Xiang Ling

    Published 2017-01-01
    “…The fault signals of rolling element bearing are often characterized by the presence of periodic impulses, which are modulated high-frequency harmonic components. The features of early fault in rolling bearing are very weak, which are often masked by background noise. …”
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  11. 431

    A Comprehensive Review of Multi-Port DC/DC Converters for The Off-Grid System Integration with Renewable Energy Resources by Ruaa M. Al-dalawi, Ayad Al-Dujaili, Daniel A. Pereira

    Published 2023-06-01
    “…The isolated MPC is more effective than the non-isolated ones in terms of isolation between the input power stage and output but has some drawbacks such as the high cost, and large size of the high-frequency transformer (HFT). In this review paper, a high-efficiency voltage-regulator/battery energy storage system (VR-BESS) was presented as a multi-port DC-DC converter for the standalone PV (photovoltaic) array. …”
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  12. 432

    Fretting Wear Behavior and Damage Mechanisms of Inconel X-750 Alloy in Dry Contacts by Ibrohim A. Rustamov, Ozoda Sh. Sabirova, Zixi Wang, Yuming Wang

    Published 2019-01-01
    “…Tribological behavior of the Inconel X-750 alloy disk subjected to fretting against the GCr15 steel ball was investigated in an ambient laboratory air with relative humidity of 55–65%. A high-frequency oscillating Optimol SRV 4 tribometer was employed to execute dry fretting tests in the partial and gross slip regimes under constant 100 N normal load. …”
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  13. 433

    Fault Diagnosis for Reducer via Improved LMD and SVM-RFE-MRMR by Xiaoguang Zhang, Zhenyue Song, Dandan Li, Wei Zhang, Zhike Zhao, Yingying Chen

    Published 2018-01-01
    “…The vibration signals are usually characterized by nonstationary, nonlinearity, and high frequency shocks, and the redundant features degrade the performance of fault diagnosis methods. …”
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  14. 434

    Study on Main Drugs and Drug Combinations of Patient-Controlled Analgesia Based on Text Mining by Xing Jin, Ying Wu

    Published 2020-01-01
    “…First, the names of the drugs in the sample were identified by MetaMap package; then, Bicomb software was used to extract high-frequency drugs for the word frequency analysis and to construct a drug-sentence matrix. …”
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  15. 435

    Model Test Study on the Influence of Train Speed on the Dynamic Response of an X-Section Pile-Net Composite Foundation by Shanshan Xue, Yumin Chen, Hanlong Liu

    Published 2019-01-01
    “…The peak spectral vibration acceleration caused by the train loading is located within the range of medium-to-low-frequency vibrations, and the characteristic frequency corresponds to the passing frequency of the bogies and carriages; as the train speed increases, the peak spectral vibration acceleration increases, and the high-frequency components increase significantly.…”
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  16. 436

    Sensory Behaviours and Resting Parasympathetic Functions among Children with and without ADHD by Ivan Neil Gomez, Lissa Martha Domondon, Hector WH Tsang, Chetwyn CH Chan, Cynthia YY Lai

    Published 2021-01-01
    “…Baseline parasympathetic functions were indexed using the normalized unit of heart rate variability high-frequency bands (HF n.u.). Children underwent an experimental protocol consisting of watching a silent cartoon movie while HF n.u. is continuously monitored, within a controlled environment. …”
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  17. 437

    Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer Electrolytes by Anji Reddy Polu, Ranveer Kumar

    Published 2011-01-01
    “…The imaginary part of dielectric constant (εi) decreases with increase in frequency in the low frequency region whereas frequency independent behavior is observed in the high frequency region.…”
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  18. 438

    Optimization of the Coupling Coefficient of the Inductive Link for Wireless Power Transfer to Biomedical Implants by Jiarui Bao, Shuyan Hu, Zibin Xie, Guangxi Hu, Ye Lu, Lirong Zheng

    Published 2022-01-01
    “…Simulations are conducted by using the high-frequency structure simulator (HFSS). Analytic results are verified with simulations. …”
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  19. 439

    End-to-End Methodology for Predictive Maintenance Based on Fingerprint Routines and Anomaly Detection for Machine Tool Rotary Components by Amaia Arregi, Aitor Barrutia, Iñigo Bediaga

    Published 2025-01-01
    “…This is done through fingerprint routines; that is, processes that are executed periodically under the same no-load conditions to obtain a snapshot of the machine condition. High-frequency vibration data gathered during these routines combined with knowledge about the machine structure and its components are used to obtain failure-specific features. …”
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  20. 440

    Wave Attenuation and Dispersion in a 6 mm Diameter Viscoelastic Split Hopkinson Pressure Bar and Its Correction Method by Haotian Zhang, Linjian Ma, Zongmu Luo, Ning Zhang

    Published 2020-01-01
    “…The results indicate that the high-frequency harmonics attenuate faster in a higher phase velocity. …”
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