EPR and double resonances in study of diamonds and nanodiamonds

2019 ◽  
pp. 83-113 ◽  
Author(s):  
Boris Yavkin ◽  
Marat Gafurov ◽  
Mikhail Volodin ◽  
Georgy Mamin ◽  
Sergei B. Orlinskii
Keyword(s):  
Double Resonances

Acoustomagnetic Double Resonances

1970 ◽  
Vol 102 (12) ◽  
pp. 663-664 ◽  
Author(s):  
U.Kh. Kopvillem ◽  
Vadim A. Golenishchev-Kutuzov ◽  
N.A. Shamukov
Keyword(s):  
Double Resonances

scholarly journals A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation

2007 ◽  
Vol 2007 ◽  
pp. 1-10 ◽  
Author(s):  
J. Gallego-Garrido ◽  
G. Dimitriadis ◽  
I. B. Carrington ◽  
J. R. Wright
Keyword(s):  
Experimental Test ◽  
Experimental Validation ◽  
Test Rig ◽  
New Techniques ◽  
Analysis Techniques ◽  
Simultaneous Resonances ◽  
Timing Data ◽  
Blade Tip ◽  
Using Data ◽  
Double Resonances

Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. In Part I of this work a class of methods for the analysis of blade tip timing data from bladed assemblies undergoing two simultaneous synchronous resonances was developed. The approaches were demonstrated using data from a mathematical simulation of tip timing data. In Part II the methods are validated on an experimental test rig. First, the construction and characteristics of the rig will be discussed. Then, the performance of the analysis techniques when applied to data from the rig will be compared and analysed. It is shown that accurate frequency estimates are obtained by all the methods for both single and double resonances. Furthermore, the recovered frequencies are used to calculate the amplitudes of the blade tip responses. The presence of mistuning in the bladed assembly does not affect the performance of the new techniques.

scholarly journals A Microwave Fourier Transform Technique using Double Resonance Modulation

1987 ◽  
Vol 42 (4) ◽  
pp. 392-394 ◽  
Author(s):  
W. Stahl ◽  
J. Gripp ◽  
N. Heineking ◽  
H. Dreizler
Keyword(s):  
Fourier Transform ◽  
Double Resonance ◽  
Fourier Transform Spectroscopy ◽  
Resonance Technique ◽  
Double Resonances

We present a further modification of the double resonance technique in microwave FOURIER transform spectroscopy. The method is promising for the search of double resonances. It is demonstrated by three examples.

Apparatus for nuclear electron double resonance at 12500 gauss

1964 ◽  
Vol 279 (1379) ◽  
pp. 474-480 ◽  
Keyword(s):  
Double Resonance ◽  
Resolving Power ◽  
Microwave Cavity ◽  
Microwave Circuit ◽  
Nuclear Resonance ◽  
Radio Frequency Coil ◽  
Polar Solvents ◽  
Resonance Frequencies ◽  
Better Than ◽  
Double Resonances

Apparatus is described for measuring nuclear electron double resonances a t magnetic fields of 12500 G, in the microwave radiation of about 35000 Mc/s and at nuclear resonance frequencies from 3 to 60 Mc/s. The microwave circuit permits saturation of solutions of certain organic free radicals in solution in non-polar solvents when placed in a microwave cavity with a radio-frequency coil mounted inside. The resolving power of the nuclear resonance spectrometer is better than 1 in 10 8 . Recordings are presented to illustrate the performance of the apparatus.

Lithographically-Fabricated SERS Substrates: Double Resonances, Nanogaps, and Beamed Emission

2014 ◽  
pp. 219-241 ◽  
Author(s):  
Kenneth B. Crozier ◽  
Wenqi Zhu ◽  
Yizhuo Chu ◽  
Dongxing Wang ◽  
Mohamad Banaee
Keyword(s):  
Sers Substrates ◽  
Double Resonances

On single and double resonances in spherical nuclei

1996 ◽  
Vol 599 (1-2) ◽  
pp. 341-346 ◽  
Author(s):  
V.Yu. Ponomarev ◽  
P.F. Bortignon ◽  
R.A. Broglia ◽  
E. Vigezzi ◽  
V.V. Voronov
Keyword(s):  
Spherical Nuclei ◽  
Double Resonances

Acoustomagnetic Double Resonances

1971 ◽  
Vol 13 (6) ◽  
pp. 828-829
Author(s):  
U Kh Kopvillem ◽  
Vadim A Golenishchev-Kutuzov ◽  
N A Shamukov
Keyword(s):  
Double Resonances

Double resonances upon three-photon ionization of the samarium atom

2010 ◽  
Vol 108 (3) ◽  
pp. 472-479 ◽  
Author(s):  
A. I. Gomonai ◽  
E. Yu. Remeta
Keyword(s):  
Photon Ionization ◽  
Double Resonances

Zeeman dependence of optical/RF double resonances in the C4v centre CaF2: Ho3+

1994 ◽  
Vol 58 (1-6) ◽  
pp. 332-334
Author(s):  
J.P.D. Martin ◽  
T. Boonyarith ◽  
N.B. Manson
Keyword(s):  
Double Resonances

Study on Nonlinear Vibration of Motor Rotor System

2012 ◽  
Vol 226-228 ◽  
pp. 221-226
Author(s):  
Feng Dong Zhang ◽  
Qi Fen Jia ◽  
Su Xia Zhang
Keyword(s):  
Electromagnetic Force ◽  
Natural Frequencies ◽  
Asynchronous Motor ◽  
Rotor System ◽  
Actual Structure ◽  
Electromagnetic Vibration ◽  
Three Phase ◽  
Vibration Problems ◽  
Rotary Speed ◽  
Double Resonances

Based on the actual structure of the motor,the model of rotor system has been established. Horizontal electromagnetic vibration problems of the rotor system are researched under the situation of asynchronous motor running in symmetrical steady state.Calculate the electromagnetic energy and electromagnetic force of the three-phase asynchronous motor (p=4). Study the electromagnetic characteristics and nonlinear electromagnetic vibration problems of the motor rotor system. Taking the gyroscopic effect into account, when analysing the rotor. Calculate the natural frequencies of the system and study double resonances problem caused by the electromagnetic force. Rotary speed, support rigidity all have certain influences upon natural frequencies of the system. Consider these factors for obtaining some regular curves. The first approximate solution and steady response curve of the system were obtained by analysing the double resonances caused by corresponding electromagnetic force.

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