Results 11 to 20 of about 393,060 (262)

Resonance frequency analysis of implants placed in condensed bone. [PDF]

open access: yesClin Oral Implants Res, 2021
AbstractObjectivesResonance frequency analysis (RFA) is used to monitor implant stability. Its output, the Implant Stability Quotient (ISQ), supposedly correlates with insertion torque, a common measurement of primary stability. However, the reliability of RFA in condensed bone remains unclear.Material and methodsIn this human cadaver study in ...
Feher B   +5 more
europepmc   +4 more sources

Design and Optimization of the Resonator in a Resonant Accelerometer Based on Mode and Frequency Analysis [PDF]

open access: yesMicromachines, 2021
This study aims to develop methods to design and optimize the resonator in a resonant accelerometer based on mode and frequency analysis. First, according to the working principle of a resonant accelerometer, the resonator is divided into three parts: beam I, beam II, and beam III.
Yan Li   +3 more
openaire   +3 more sources

Resonant frequency analysis of dental implants [PDF]

open access: yesMedical Engineering & Physics, 2019
Dental implant stability influences the decision on the determination of the duration between implant insertion and loading, This work investigates the resonant frequency analysis by means of a numerical model. The investigation is done numerically through the determination of the eigenfrequencies and performing a steady state response analyses using a
Rittel, D.   +3 more
openaire   +4 more sources

Analysis of Frequency Drift of Silicon MEMS Resonator with Temperature [PDF]

open access: yesMicromachines, 2020
High-quality-factor Micro-Electro-Mechanical System (MEMS) resonators have been widely used in sensors and actuators to obtain great mechanical sensitivity. The frequency drift of resonator with temperature is a problem encountered practically. The paper focuses on the resonator frequency distribution law in the temperature range of—40 to 60 °C.
Bo Jiang   +3 more
openaire   +3 more sources

Can Bone Compaction Improve Primary Implant Stability? An In Vitro Comparative Study with Osseodensification Technique

open access: yesApplied Sciences, 2020
Background: This study aims to analyze bone compaction and osseodensification techniques and to investigate how cancellous bone compaction could influence primary implant stability (PS).
Alessandro Antonelli   +9 more
doaj   +1 more source

High Frequency Resonance Frequency Shift Method for Cable Distribution System

open access: yesZhongguo dianli, 2021
In order to solve the problem of high frequency resonance in cable distribution network, a high frequency resonance frequency shift method based on impedance reconstruction of distribution network is proposed.
Mingxing ZHU, Binbin KONG, Huaying ZHANG
doaj   +1 more source

An improved harmonic resonance mode analysis method for distribution power grid

open access: yesEnergy Reports, 2022
Harmonic resonance endangers seriously safe and reliable operation of power grid and an appropriate resonance harmonic analysis method is of great importance.
Lianxue Gao, Ran Zhang
doaj   +1 more source

Resonant frequency analysis of dielectric ring resonators

open access: yesElectronics Letters, 1988
The mode-matching technique is applied to guided and continuous spectra to derive the resonant frequencies of the high-order azimuthal modes of dielectric ring resonators. The numerical results of this field theory analysis are in close agreement with the measurements in the X-band.
Paul, DL, Habibi, M, Gelin, P
openaire   +2 more sources

Structural Design and Experimental Analysis of a Piezoelectric Vibration Feeder with a Magnetic Spring

open access: yesMicromachines, 2014
A piezoelectric vibration feeder with a magnetic spring is discussed in this paper. The feeder can keep resonance frequency relatively stable under changing loading.
Xiaochao Tian   +4 more
doaj   +1 more source

Assessment of implant stability by resonant frequency analysis

open access: yesVojnosanitetski pregled, 2015
nema
Vitomir Konstantinovic   +3 more
openaire   +4 more sources

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