HIGH-FREQUENCY

作品数：298被引量：538H指数：9
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相关机构：首都医科大学附属北京天坛医院中山大学附属第二医院南京林业大学扬州大学更多>>
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Low-frequency signal generation in space based on high-frequency electric-antenna array and Doppler effect
《Journal of Systems Engineering and Electronics》2025年第1期24-36,共13页CUI Anjing LI Daojing WU Jiang GAO Jinghan ZHOU Kai HU Chufeng WU Shumei SHI Danni LI Guang 
Science and Technology Project of Aerospace Information Research Institute,Chinese Academy of Sciences(Y910340Z2F);Science and Technology Project of BBEF(E3E2010201)。
Low-frequency signals have been proven valuable in the fields of target detection and geological exploration.Nevertheless,the practical implementation of these signals is hindered by large antenna diameters,limiting t...
关键词：frequency conversion array signal processing experimental verification Doppler effect 
Effectiveness of High-Frequency Electrosurgical Knife Surgery Under Painless Digestive Endoscopy in Elderly Patients with Gastrointestinal Polyps
《Proceedings of Anticancer Research》2025年第1期14-20,共7页Yumin Lu 
Objective:To analyze the therapeutic effect of high-frequency electrosurgical knife surgery guided by painless digestive endoscopy(PDE)in elderly patients with gastrointestinal polyps(GP).Methods:A total of 100 elderl...
关键词：Painless digestive endoscopy High-frequency electrosurgical knife surgery Elderly gastrointestinal polyps 
Nonlinear saturation of reversed shear Alfvén eigenmode via high-frequency quasi-mode generation
《Plasma Science and Technology》2025年第1期17-22,共6页Zhiwen CHENG Guangyu WEI Lei YE Zhiyong QIU 
supported by the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB0790000);the Collaborative Innovation Program of Hefei Science Center,CAS(No.2022HSC-CIP008);National Natural Science Foundation of China(Nos.12275236 and 12261131622)。
A nonlinear saturation mechanism for reversed shear Alfvén eigenmode(RSAE)is proposed and analyzed,and is shown to be of relevance to typical reactor parameter region.The saturation is achieved through the generation...
关键词：reversed shear Alfvén eigenmode nonlinear mode coupling continuum damping gyrokinetic theory 
High-frequency enhanced ultrafast compressed active photography
《Opto-Electronic Advances》2025年第1期32-43,共12页Yizhao Meng Yu Lu Pengfei Zhang Yi Liu Fei Yin Lin Kai Qing Yang Feng Chen 
supported by the National Science Foundation of China(No.12127806,No.62175195 and No.12304382);the International Joint Research Laboratory for Micro/Nano Manufacturing and Measurement Technologies.
Single-shot ultrafast compressed imaging(UCI)is an effective tool for studying ultrafast dynamics in physics,chemistry,or material science because of its excellent high frame rate and large frame number.However,the ra...
关键词：ultrafast compressed imaging high-frequency enhanced sampling spectral-temporal transform transient processes high-fidelity reconstruction 
Wind Turbine Composite Blades:A Critical Review of Aeroelastic Modeling and Vibration Control
《Fluid Dynamics & Materials Processing》2025年第1期1-36,共36页Tingrui Liu Qinghu Cui Dan Xu 
supported by the Natural Science Foundation of Shandong Provincial of China(Grant Number ZR2022ME093);the Natural Science Foundation of China(Grant Number 51675315).
With the gradual increase in the size and flexibility of composite blades in large wind turbines,problems related toaeroelastic instability and blade vibration are becoming increasingly more important.Given their impa...
关键词：Aeroelastic instability vibration control composite blade stall-induced nonlinear flutter high-frequency microvibration 
A Modularizable High-Frequency Battery Equalizer with Multi-Winding Transformer for Energy Storage Systems
《Open Journal of Applied Sciences》2024年第12期3731-3747,共17页Chihchiang Hua Jianbin Lai Zhewei Zhang 
This paper proposes an improved modularizable high-frequency battery equalizer with multi-winding transformer for energy storage systems. The involvement of parasitic components in circuit resonance, along with the ad...
关键词：Battery Equalizer High Switching Frequency Multi-Winding Transformer 
Drawdown-based risk indicators for high-frequency financial volumes
《Financial Innovation》2024年第1期2538-2577,共40页Guglielmo D’Amico Bice Di Basilio Filippo Petroni 
In stock markets,trading volumes serve as a crucial variable,acting as a measure for a security’s liquidity level.To evaluate liquidity risk exposure,we examine the process of volume drawdown and measures of crash-re...
关键词：Drawdown-based measures High-frequency financial volumes Semi-Markov model Right censoring Chi-square independence test Goodness-of-ft test Kullback-Leibler divergence 
High-density, high-frequency and large-scale electrohydrodynamic drop-on-demand jetting via a protruding polymer-based printhead design
《Microsystems & Nanoengineering》2024年第6期267-277,共11页Yongqing Duan Weili Yang Qiming Wang Zhaoyang Sun Haoyu Guo Zhouping Yin 
financially supported by the National Natural Science Foundation of China(52075209);the Natural Science Foundation for Distinguished Young Scholars of Hubei Province of China(2022CFA066);the Young Elite Scientists Sponsorship Program by the China Association for Science and Technology(2021QNRC001)。
Electrohydrodynamic(EHD)printing has critical merits in micro/nanoscale additive manufacturing because of its ultrahigh resolution and wide ink compatibility,making it an advantageous choice for electronics manufactur...
关键词：printing nozzle electronics 
Magnetic properties of soft magnetic composites prepared by gas-atomized glassy powders from a new Fe-based alloy with high glass-forming ability
《Science China(Physics,Mechanics & Astronomy)》2024年第11期91-104,共14页Ranbin Wang Jili Jia You Wu Wenhui Guo Na Chen Yang Shao Kefu Yao 
supported by the National Key Research and Development Program of China (Grant Nos.2022YFB3804100,and 2022YFB4200800);the National Natural Science Foundation of China (Grant No.52271148)。
With a pressing need for high efficiency, low power consumption, and miniaturization of electronics, soft magnetic composites(SMCs) show great potential, especially for applications in key electronic component. Howeve...
关键词：metallic glassy powder soft magnetic composite annealing temperature particle size high-frequency property 
Reduction of High-Frequency Core Loss of a Fe_(77.2)Si_(11)B_(8.5)Cu_(0.8)Nb_(2.5)Soft Magnetic Nanocrystalline Alloy by Minor Alloying
《Acta Metallurgica Sinica(English Letters)》2024年第11期1984-1992,共9页Shushen Guo Yanhui Li Yibing Zhang Lu Yang Wei Zhang 
supported by the National Key Research and Development Program of China(Grant No.2022YFB3804100);the National Natural Science Foundation of China(Grant Nos.52371149 and 52171153).
Enhancing saturation magnetic flux density(Bs)while reducing high-frequency core loss in Finemet-type nanocrystalline alloys is of great significance in achieving the miniaturization,high-frequency,and energy-saving o...
关键词：Fe-based nanocrystalline alloy Fe-Si-B-Cu-Nb alloy Soft magnetic property High-frequency loss Electrical resistivity 
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