Showing 181 - 200 results of 848 for search '"high frequency"', query time: 0.06s Refine Results
  1. 181

    Analysis of Vibration Response Law of Multistory Building under Tunnel Blasting Loads by Runke Huo, Shuguang Li, Zhanping Song, Yoshiaki Fujii, Shan Lei, Jianchao Mao, Sisi Tian, Zizhen Miao

    Published 2019-01-01
    “…The dominant frequency of the building showed a trend from high frequency to low frequency, the duration became short, and the acceleration decreased to the 4th floor. …”
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  2. 182

    Functional Change in the Caudal Pontine Reticular Nucleus Induced by Age-Related Hearing Loss by Ning Zhao, Ana’am Alkharabsheh, Fei Xu, Wei Sun

    Published 2018-01-01
    “…Our results suggest that the high-frequency hearing loss caused an increase in PnC sensitivity in the C57 mice which may enhance ASRs.…”
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  3. 183

    DESIGN ANALYSIS OF A LOW-COST PARABOLIC ANTENNA FOR DEVELOPING NATION by FRANK ONAIFO, ALEXANDER AKPOFURE OKANDEJI, FISAYO IDOWU, OMOWUMMI GRACE OLASUNKANMI, OLAWALE OLALUWOYE, OLAOLU FOLORUNSHO

    Published 2020-01-01
    “…The Parabolic antenna is designed to receive microwave signals in the K-band with the down converter converting it to very high frequency (VHF) and ultra-high frequency (UHF) employing the super-heterodyning principle. …”
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  4. 184

    Influence of Underlying Surface on Distribution of Hourly Heavy Rainfall over the Middle Yangtze River Valley by Yinglian Guo, Jisong Sun, Guirong Xu, Zhiming Zhou, Jizhu Wang

    Published 2022-01-01
    “…As a result, the sunrise HHR gradually increases from the foot of the mountain. The high-frequency HHR period of sunrise occurs when the supergeostrophic effect is weakened, the low-level vorticity and frontal forcing are strengthened, and the water vapor flux convergence begins to weaken. …”
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  5. 185

    Physicochemical and Vibration Analysis of Christmas Tree Four-Way Flange Failure under Fracturing Process by Zhaoming Zhou, Dawen Gong, Kelong Yang, Zhong Zeng, Zhou Xiao

    Published 2020-01-01
    “…Through physical and chemical tests and theoretical calculations, it is found that the cause of failure is the unbalanced load and resonance of the bolt, and the nut undercuts under high-frequency vibration, which causes leakage at the flange connection and eventually causes erosion failure. …”
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  6. 186
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  8. 188

    Artifical Excitation of Ferro-Resonance for Testing Electrotechnical Equipment in Distribution Devices with Increased Voltage by Ye. V. Dmitriev, A. M. Hashimov, S. I. Hasanova

    Published 2006-10-01
    “…On the basis of the developed device for protection against of ferro-resonant and high-frequency cumulative over-voltages an algorithm for obtaining a voltage imitating ferro-resonant over-voltages is proposed in the paper. …”
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  9. 189

    RESEARCH OF INFLUENCE OF MAGNETIC-IMPULSE PROCESSING ON PHYSIC-MECHANICAL AND TRIBOTECHNICAL CHARACTERISTICS OF FRICTION UNITS by T. A. Ahmetov, V. P. Sergienko, I. A. Kovaleva, I. N. Radjkova

    Published 2012-02-01
    “…The researches of influence of the cyclically modulated by amplitude high-frequency magnetic field on mechanical and tribotechnical characteristics of composites with polymericfluorine matrix are carried out for the first time.…”
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  10. 190

    Signal-Noise Ratio Control Subsystem of Digital Equipment for Transmission of "Strela" Relay Protection Commands by I. I. Zabenkov

    Published 2012-06-01
    “…Continuous measurement function of relative noise and interference level in the information transmission channel is considered as an important one for controlling parameters of high-frequency signal. The present paper simulates an algorithm for measuring signal-noise ratio in the transmission channel of high-voltage lines which is used in the digital equipment for transmission of relay protection and emergency automation commands of "Strela" complex.…”
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  11. 191

    Nonparametric Range-Based Double Smoothing Spot Volatility Estimation for Diffusion Models by Jingwei Cai

    Published 2020-01-01
    “…We consider nonparametric spot volatility estimation for diffusion models with discrete high frequency observations. Our estimator is carried out in two steps. …”
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  12. 192

    Peptic ulcer: does it changed identity? by Ye. A. Pyatenko, A. A. Sheptulin

    Published 2018-08-01
    “…Significant number of patients present with heartburn and belching, that is explained by high frequency of PU to gastroesophageal reflux disease (GERD) combination (in 93.8% of men and 83.0% of women). …”
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  13. 193

    Modeling the modulation of beta oscillations in the basal ganglia by dual-target optogenetic stimulation by Xiaomin Wang, Ying Yu, Qingyun Wang

    Published 2025-01-01
    “…Excitation of D1 medium spine neuron (MSN), calcium-binding protein parvalbumin (PV) GPe, and inhibition of globus pallidus interna (GPi) can effectively suppress synchronous bursting activity in GPi, while excitation of GPi promotes high-frequency discharge to disrupt beta oscillations. …”
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  14. 194

    Microstructural and mechanical properties of ultrasonically assisted titanium-steel dissimilar metal fusion welds by Xiaohu Hao, Xinlong Wei, Shuhua Li, Zeqin Cui, Dejun Yan, Weiguo Li

    Published 2025-03-01
    “…Additionally, the distribution of the Ti–Cu phase and α-(Fe,Cr) phase became more uniform. The high-frequency vibration effectively reduced the residual stresses in the titanium-steel joints, thereby enhancing the overall performance. …”
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  15. 195

    Quantitative Evaluation of the Effectiveness of Erbium Glass Laser Therapy for Acne Scars by Wiktoria Odrzywołek, Anna Deda, Dagmara Kuca, Małgorzata Bożek, Krzysztof Makarski, Sławomir Wilczyński

    Published 2025-01-01
    “…The Antera 3D system and high-frequency ultrasound device demonstrated high efficacy in capturing subtle changes, supporting its value in clinical applications for optimizing treatment parameters.…”
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  16. 196

    Effect of Nano ZnO on the Optical Properties of Poly(vinyl chloride) Films by Wasan Al-Taa’y, Mohammed Abdul Nabi, Rahimi M. Yusop, Emad Yousif, Bashar Mudhaffar Abdullah, Jumat Salimon, Nadia Salih, Saiful Irwan Zubairi

    Published 2014-01-01
    “…The extinction coefficient, refractive index, real and imaginary parts, infinitely high frequency dielectric constant, and average refractive index values were found to increase with increasing impurity percentage. …”
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  17. 197

    A Compact Frequency Reconfigurable Antenna for LTE Mobile Handset Applications by Munyong Choi, Hyunho Wi, Byeonggwi Mun, Yonghyun Yoon, Hyunwoo Lee, Byungje Lee

    Published 2015-01-01
    “…A compact (8 × 62 × 5 mm3; 2.48 cc) frequency reconfigurable antenna that uses electrical switching with PIN diodes is proposed for the low frequency LTE band (699 MHz–862 MHz), high frequency LTE band (2496 MHz–2690 MHz), GSM850/900 bands (824 MHz–960 MHz), and DCS/PCS/WCDMA bands (1710 MHz–2170 MHz). …”
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  18. 198

    Dynamic Analysis of Vehicle Track Coupling Based on Double Beam Track Model by Yayun Qi, Huanyun Dai, Jianjin Yang, Kun Xu

    Published 2018-01-01
    “…And double beam model has more advantage in analyzing high frequency problems such as wheel polygonization.…”
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  19. 199

    Distribution of the arctic variant of the CPT1A gene in indigenous populations of Siberia by B. A. Malyarchuk, M. V. Derenko, G. A. Denisova, A. N. Litvinov

    Published 2016-12-01
    “…In the present study, a high frequency of CPT1A Arctic variant has been found in coastal populations of Northeast Asia – in Koryaks (66 %), Chukchi (56 %) and Evens (30 %), and singularly (at a frequency of 1 %) in Evenks of Central Siberia. …”
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  20. 200

    High-Gain SIR Dual-Band Antenna Based on CSRR-Enhanced SIW for 2.4/5.2/5.8 GHz WLAN by Caixia Feng, Yongqiang Kang, Lijuan Dong, Lihong Wang

    Published 2020-01-01
    “…Meanwhile, the CSRRs produces a resonant frequency at high-frequency band around 5.2 GHz, which can be combined with the second harmonic frequency fs2 at 5.7 GHz. …”
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