Showing 721 - 740 results of 848 for search '"high frequency"', query time: 0.06s Refine Results
  1. 721

    Electroacupuncture Treatment Alleviates Central Poststroke Pain by Inhibiting Brain Neuronal Apoptosis and Aberrant Astrocyte Activation by Gui-Hua Tian, Shan-Shan Tao, Man-Tang Chen, Yu-Sang Li, You-Ping Li, Hong-Cai Shang, Xiao-Yi Tang, Jian-Xin Chen, He-Bin Tang

    Published 2016-01-01
    “…The low-frequency EA treatment significantly (1) reduced brain tissue damage and hematoma sizes and (2) inhibited neuronal apoptosis, thereby exerting abirritative effects. Meanwhile, the high-frequency EA treatment induced a greater inhibition of the aberrant astrocyte activation, accompanied by the downregulation of the expressions of COX-2, β-catenin, and subsequently NK-1R, thereby alleviating inflammation and producing strong analgesic effects. …”
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  2. 722

    Dynamic responses characteristics of bedrock and overburden layer slope with anchored frame piles based on shaking table test by Lei Wang, Qianhui Pu, Guangpeng Chen, Jing Lian, Changwei Yang, Mingming Dai

    Published 2025-02-01
    “…The dominant Fourier frequency in the Y direction of the slope is 11.7687 Hz under Wolong seismic, and the high-frequency vibrations of the upper overburden layer are significantly stronger than those of the bedrock. …”
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  3. 723

    Research on Battery Electric Vehicles’ DC Fast Charging Noise Emissions: Proposals to Reduce Environmental Noise Caused by Fast Charging Stations by David Clar-Garcia, Hector Campello-Vicente, Miguel Fabra-Rodriguez, Emilio Velasco-Sanchez

    Published 2025-01-01
    “…However, this research highlights a downside of DC (Direct Current) fast charging stations: high-frequency noise emissions during fast charging, which can disturb nearby residents, especially in urban and residential areas. …”
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  4. 724

    A consort‐guided randomized, blinded, controlled clinical trial on the effects of 6 weeks training on heart rate variability in thoroughbred horses by Emma Santosuosso, Renaud Léguillette, Sierra Shoemaker, Ryan Baumwart, Sierra Temple, Kaneesha Hemmerling, Tessa Kell, Warwick Bayly

    Published 2025-01-01
    “…Methods Linear domain HRV variables were analyzed (high frequency [HF], low frequency [LF], their normalized units [Hfnu, Lfnu], root mean square of successive differences between beats [RMSSD], Poincaré plot features [SD1 and SD2]) while resting overnight before (baseline) and after 2, 4 and 6 weeks of training. …”
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  5. 725

    Ice speed of a Greenlandic tidewater glacier modulated by tide, melt, and rain by S. Sugiyama, S. Sugiyama, S. Tsutaki, S. Tsutaki, D. Sakakibara, D. Sakakibara, I. Asaji, K. Kondo, Y. Wang, E. Podolskiy, G. Jouvet, G. Jouvet, M. Funk

    Published 2025-01-01
    “…Here, we present high-frequency ice speed measurements performed at 0.5–4 km from the front of Bowdoin Glacier, a tidewater glacier in northwestern Greenland. …”
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  6. 726

    Harmonic and Supra-Harmonic Emissions of Electric Vehicle Chargers: Modeling and Cumulative Impact Indices by Antonio Bracale, Pierluigi Caramia, Giovanni Mercurio Casolino, Pasquale de Falco, Iqrar Hussain, Pietro Varilone, Paola Verde

    Published 2024-01-01
    “…Waveform distortions are interesting since EV currents introduce distortions with spectral components in both low and high-frequency bands. This paper develops specific indices to assess cumulative emissions from single-phase EV on-board chargers, extending the aggregation and diversity factors to the supra-harmonic range. …”
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  7. 727

    Value of Assessing Autonomic Nervous Function by Heart Rate Variability and Heart Rate Turbulence in Hypertensive Patients by Yijun Yu, Yanling Xu, Mingjing Zhang, Yuting Wang, Wusong Zou, Ye Gu

    Published 2018-01-01
    “…HRV parameters include square root of mean of the sum of squares of successive NN interval differences (rMSSD), number of successive NN intervals differing by > 50ms divided by the total number of successive NN intervals (pNN50), very low frequency (VLF) at frequency between 0.0033 and 0.04 Hz, low frequency (LF) at frequency between 0.04 and 0.15 Hz, and high frequency (HF) at frequency between 0.15 and 0.4 Hz. …”
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  8. 728

    Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna by Pengying Xu, Yan Wang, Xiaoxian Xu, Longyang Wang, Zhihai Wang, Kunpeng Yu, Wenzhi Wu, Meng Wang, Guojun Leng, Dongming Ge, Xiaofei Ma, Congsi Wang

    Published 2023-01-01
    “…Finally, the future research direction of SET technology of APAA has been discussed, and SET technology is extended to more fields such as antenna parameter uncertainty, high-frequency circuit electronics manufacturing, and electronic equipment performance guarantee.…”
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  9. 729

    Genetic polymorphism of CYP1A1 and CYP2D6 in populations of Buryats, Teleuts and Russians of Eastern Siberia by L. E. Tabikhanova, L. P. Osipova, T. V. Churkina, E. N. Voronina, M. L. Filipenko

    Published 2018-04-01
    “…The frequency of CYP1A1*2C (2455G) in the Russians of Eastern Siberia (4.1 %) corresponds to the frequency range found in European populations. A high-frequency occurrence of CYP1A1*2C (2455G) among Buryats and Teleuts may be indicative of a higher population-wide risk of diseases influenced by technogenic pollutants – substrates of CYP1A1. …”
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  10. 730

    In Vivo Plasticity at Hippocampal Schaffer Collateral-CA1 Synapses: Replicability of the LTP Response and Pharmacology in the Long-Evans Rat by A. Ahnaou, E. White, R. Biermans, N. V. Manyakov, W. H. I. M. Drinkenburg

    Published 2020-01-01
    “…The present study was undertaken in Long-Evans (LE) rats, a strain of rat commonly used in cognitive behavioral tests, to (1) compare three LTP tetanisation protocols, namely, the high-frequency stimulation (HFS), the theta-burst stimulation (TBS), and the paired-pulse facilitation (PPF) at the Schaffer collateral-CA1 stratum radiatum synapse and to (2) assess sensitivity to acute pharmacology. …”
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  11. 731

    Tribological behaviors of AZ91D magnesium alloy under the lubrication of oil suspended synthetic magnesium silicate hydroxide nanotubes by Y.L. Yin, H.L. Yu, H.M. Wang, X.C. Ji, Z.Y. Song, X.Y. Zhou, M. Wei, P.J. Shi, W. Zhang, C.F. Zhao

    Published 2025-01-01
    “….% MSH was most efficient in reducing wear and friction. High frequency and medium load were more conducive to improving the tribological properties of magnesium alloys. …”
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  12. 732

    Improving timing resolution of BGO for TOF-PET: a comparative analysis with and without deep learning by Francis Loignon-Houle, Nicolaus Kratochwil, Maxime Toussaint, Carsten Lowis, Gerard Ariño-Estrada, Antonio J. Gonzalez, Etiennette Auffray, Roger Lecomte

    Published 2025-01-01
    “…Results In this work, we compare classical experimental timing estimation methods (LED, TWC) with a CNN-based method using the signals from BGO crystals read out by NUV-HD-MT SiPMs and high-frequency electronics. For $${2 \times 2 \times 3}\,\hbox {mm}^{3}$$ 2 × 2 × 3 mm 3 crystals, implementing TWC results in a CTR of 129 ± 2 ps FWHM, while employing the CNN yields 115 ± 2 ps FWHM, marking improvements of 18 % and 26 %, respectively, relative to the standard LED estimator. …”
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  13. 733
  14. 734

    The scoping, design, and plasma physics optimization of the Eos neutron source stellarator by C.P.S. Swanson, D.A. Gates, S.T.A. Kumar, M.F. Martin, T.G. Kruger, D.W. Dudt, P.J. Bonofiglo, the Thea Energy team

    Published 2025-01-01
    “…A potentially advantageous regime is described in which modern precisely-quasisymmetric stellarators, new high-temperature superconductors, ITER-derived neutral beam injection, and new high-frequency gyrotrons enable a suitible target plasma with hot electrons, cold ions, peaked density and temperature profiles, and high beam-injected ion density. …”
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  15. 735

    Sex differences in cardiorespiratory control under hypoxia: the roles of oxygen desaturation and hypoxic exposure time by André Luiz Musmanno Branco Oliveira, Gabriel Dias Rodrigues, Gabriel Dias Rodrigues, Bruno Moreira Silva, Philippe de Azeredo Rohan, Pedro Paulo da Silva Soares

    Published 2025-01-01
    “…Spectral analysis of R-R intervals and systolic BP revealed cardiovascular autonomic modulation in the low- (LF; 0.04–0.15 Hz) and high-frequency (HF; 0.15–0.40 Hz) bands and alpha-index (α–LF) assessed spontaneous baroreflex sensitivity (BRS). …”
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  16. 736

    Magnitude of Multidrug Resistance among Bacterial Isolates from Surgical Site Infections in Two National Referral Hospitals in Asmara, Eritrea by Eyob Yohannes Garoy, Yacob Berhane Gebreab, Oliver Okoth Achila, Nobiel Tecklebrhan, Hermon Michael Tsegai, Alex Zecarias Hailu, Abrehet Marikos Buthuamlak, Tewelde Ghide Asfaga, Mohammed Elfatih Hamida

    Published 2021-01-01
    “…Conclusion. Due to the high frequency of MDR isolates reported in this study, the development and implementation of suitable infection control policies and guidelines is imperative.…”
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  17. 737

    Simulation and explanatory analysis of dissolved oxygen dynamics in Lake Ulansuhai, China by Fan Zhang, Xiaohong Shi, Shengnan Zhao, Ruonan Hao, Biao Sun, Guohua Li, Shihuan Wang, Hao Zhang

    Published 2025-02-01
    “…Study focus: After implementing the optimal noise reduction strategies based on wavelet transform for the high-frequency monitoring data, hybrid models coupling random forests, support vector machines, and artificial neural networks were employed to simulate the dissolved oxygen in the lake during both the open-water and ice-covered periods. …”
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  18. 738

    Corneal Cap Thickness and Its Effect on Visual Acuity and Corneal Biomechanics in Eyes Undergoing Small Incision Lenticule Extraction by Ting Liu, Ting Yu, Lina Liu, Kaijian Chen, Ji Bai

    Published 2018-01-01
    “…No statistically significant differences were found in manifest refraction, UCVA, SR, OSI, MTF cutoff, and mesopic and photopic contrast sensitivity at low frequency, photopic contrast sensitivity at high frequency, endothelial density, corneal coma, and total HOAs at 3 months after the procedure. …”
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  19. 739

    The ILE462VAL polymorphism of the cytochrome P450 CYP1A1 gene among Tundra Nenets in Yamalo-Nenets Autonomous Okrug, Nganasans in the Taimyr Peninsula and Russians in Siberia by R. P. Tiis, L. P. Osipova, T. V. Churkina, L. E. Tabikhanova, D. V. Lichman, E. N. Voronina, M. L. Filipenko

    Published 2016-03-01
    “…Frequencies of the  462Val variant close to that in Nganasans have been observed in Greenland Inuits, native Americans as a whole and the Southern Chinese. A high-frequency occurrence of the 462Val allele among Tundra Nenets and Nganasans may be indicative of a populationwide risk of diseases influenced by this genetic polymorphism, especially when traditional mainstays are gone or previously unknown ecotoxicants appear in the areas.…”
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  20. 740

    Outcomes of oncologic arthroplasty in children and adolescents with malignant limb tumors: a systematic review by Vyacheslav I. Zorin, Sergei V. Vissarionov, Alexandr Y. Makarov, Timofey S. Rybinskikh, Kristina N. Rodionova

    Published 2024-12-01
    “…The data obtained indicate an extremely high frequency of complications during oncologic arthroplasty in children, mainly of an orthopedic profile, which requires analysis and development of measures to prevent them, as well as organizational solutions for the correction of these disorders.…”
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