Twisted Gaussian Schell-model beams I Symmetry structure and normal-mode spectrum

1993 ◽  
Vol 10 (9) ◽  
pp. 2008 ◽  
Author(s):  
R. Simon ◽  
N. Mukunda ◽  
K. Sundar
Keyword(s):  
Normal Mode ◽  
Mode Spectrum ◽  
Symmetry Structure

Normal Mode Spectrum of Fe(PPIX)Cl in the Presence of External Force Fields

2010 ◽  
Author(s):  
Alexander Demidov ◽  
Paul M. Champion ◽  
P. M. Champion ◽  
L. D. Ziegler
Keyword(s):  
Normal Mode ◽  
External Force ◽  
Force Fields ◽  
Mode Spectrum

Optimization of the Normal Mode Spectrum of Linear Ion Crystals in Paul Traps for EIT Cooling Using an Optical Lattice

JETP Letters ◽  
2020 ◽  
Vol 112 (9) ◽  
pp. 585-590
Author(s):  
L. A. Akopyan ◽  
I. V. Zalivako ◽  
K. E. Lakhmanskiy ◽  
K. Yu. Khabarova ◽  
N. N. Kolachevsky
Keyword(s):  
Normal Mode ◽  
Optical Lattice ◽  
Mode Spectrum

scholarly journals Non-newtonian forces and the observed solar oscillation spectrum

1988 ◽  
Vol 123 ◽  
pp. 119-119
Author(s):  
J. R. Kuhn
Keyword(s):  
Long Range ◽  
Normal Mode ◽  
Spatial Scales ◽  
New Physics ◽  
Solar Model ◽  
Solar Oscillation ◽  
Oscillation Spectrum ◽  
Integral Bound ◽  
Mode Spectrum ◽  
Recent Interest

Motivated by recent interest in the possibility of a long range gravitation-like force we have considered the effects a deviation from the Newtonian force law would have on the solar normal mode spectrum. Observations of low order and degree modes provide the most interesting limits to possible new physics. The constraint from solar oscillation observations is distinct from other planetary data in that it provides an integral bound on force law deviations on spatial scales between roughly 2×104 km and planetary scales. This limit is −0.02 ≤ δG/G ≤ 0.3 and is presently limited by systematic differences between the low-l observations and uncertainty in the solar model.

A minimal coarse-grained model for the low-frequency normal mode analysis of icosahedral viral capsids

Soft Matter ◽  
2020 ◽  
Vol 16 (14) ◽  
pp. 3443-3455 ◽  
Author(s):  
M. Martín-Bravo ◽  
J. M. Gomez Llorente ◽  
J. Hernández-Rojas
Keyword(s):  
Structural Properties ◽  
Normal Mode ◽  
Normal Mode Analysis ◽  
Low Frequency ◽  
Coarse Grained ◽  
Mode Analysis ◽  
Viral Capsids ◽  
Mode Spectrum ◽  
Coarse Grained Model

A minimal coarse-grained model unveils relevant structural properties of icosahedral viral capsids when fitted to reproduce their low-frequency normal-mode spectrum.

Extracting Modal Parameters of Constrained Structure from Free Test Data

2011 ◽  
Vol 110-116 ◽  
pp. 4198-4203
Author(s):  
Bin Wu ◽  
Yun He ◽  
Song Feng
Keyword(s):  
Normal Mode ◽  
Analytical Model ◽  
Test Data ◽  
Extraction Method ◽  
Fem Analysis ◽  
High Order ◽  
Mode Shapes ◽  
Modal Parameters ◽  
Mode Spectrum ◽  
Modal Synthesis

This study explores the method of extracting modal parameters of constrained structure from test data. The normal mode spectrum matrix constituted of low order frequencies of the structure can be derived from the free test data, while the normal mode shapes and the extra high order modes can be obtained through FEM analysis; The boundary constrains are equivalent as a kind of sub-structure, and the modal synthesis is used to extract the constrained modal parameters. Experiment and simulation are conducted and the results show that the extraction method based on the modal synthesis and which combines the experiment model and the analytical model is feasible.

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