Results 221 to 230 of about 27,007 (267)

Cavity- and waveguide-resonators in electron paramagnetic resonance, nuclear magnetic resonance, and magnetic resonance imaging

Progress in Nuclear Magnetic Resonance Spectroscopy, 2014
Cavity resonators are widely used in electron paramagnetic resonance, very high field magnetic resonance microimaging and also in high field human imaging. The basic principles and designs of different forms of cavity resonators including rectangular, cylindrical, re-entrant, cavity magnetrons, toroidal cavities and dielectric resonators are reviewed ...
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Resonances in scattering by a resonator

Let \(\Omega\) be an exterior of a bounded domain. The self-adjoint operator \(H=-\Delta\) with Dirichlet boundary conditions on \(\partial \Omega\) is studied in \(L^ 2(\Omega)\). A resonance \(\phi\in L^ 2(\Omega)\) is defined as a vector which is concentrated in some bounded domain \(B\subset \Omega\) and such that the spectral measure \((E_ H ...
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On Resonant tunneling

Surface Science Letters, 1982
Abstract Localized electron states in oxides adjacent to metals hybridize with conduction electron states forming interface states, which at the localized site have an amplitude resonantly enhanced over the amplitude of the conduction electron states.
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Anti-Resonance — Velocity Resonance

Mekhatronika, Avtomatizatsiya, Upravlenie, 2019
The task of the study is to establish the nature of mechanical resonance, namely, it is a resonance of forces or speeds. Two definitions are introduced. Definition 1. Resonance of forces is a resonance arising at a frequency ω = (k/m)0,5 in a mechanical system including an inert body and an elastic element, at which the reactive forces developed by ...
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Scattering by resonances

Celestial Mechanics and Dynamical Astronomy, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Resonance—Nuclear Magnetic Resonance

2019
In this chapter, we will consider the principles of nuclear magnetic resonance to see how it can be exploited to generate signals from within the body related to the presence and properties of water within tissues. We will explore how radiofrequency waves can be used to exploit resonance phenomenon of protons placed within a magnetic field and the ...
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Helmholtz resonator with two resonance frequencies by coupling with a mechanical resonator

Journal of Sound and Vibration, 2023
Hannah Hoppen, Felix Langfeldt
exaly  

Theoretical analysis and experimental optimization of an elliptical acoustic resonator in quartz-enhanced photoacoustic spectroscopy

Sensors and Actuators B: Chemical, 2022
Hongpeng Wu, Shangzhi Li
exaly  

Fundamental investigation of subsurface damage on the quality factor of hemispherical fused silica shell resonator

Sensors and Actuators A: Physical, 2022
Jianfeng Xu, Changlin Liu, Junfeng Xiao   +2 more
exaly  

High-precision synchronous test method of vibration performance parameters for fused quartz hemispherical resonator

Measurement: Journal of the International Measurement Confederation, 2021
Guoxing Yi, Zhennan Wei, Boqi Xi
exaly