High-resolution spectroscopic frequency measurements

2016 ◽  
pp. 343-432
Keyword(s):  
High Resolution ◽  
Frequency Measurements

Nonuniform Optical Undersampling for High-Resolution Microwave Frequency Measurements

2012 ◽  
Vol 24 (12) ◽  
pp. 997-999 ◽  
Author(s):  
Daniel R. Reilly ◽  
Shawn X. Wang ◽  
Gregory S. Kanter
Keyword(s):  
High Resolution ◽  
Microwave Frequency ◽  
Frequency Measurements

scholarly journals High-Resolution Flicker-Noise-Free Frequency Measurements of Weak Microwave Signals

2011 ◽  
Vol 59 (6) ◽  
pp. 1651-1657
Author(s):  
Daniel L. Creedon ◽  
Michael E. Tobar ◽  
Eugene N. Ivanov ◽  
John G. Hartnett
Keyword(s):  
High Resolution ◽  
Flicker Noise ◽  
Frequency Measurements ◽  
Microwave Signals

High-Resolution Observations of Centaurus-A and Pictor-A at 160 MHz

1975 ◽  
Vol 2 (6) ◽  
pp. 336-338 ◽  
Author(s):  
O.B. Slee ◽  
K.V. Sheridan
Keyword(s):  
High Resolution ◽  
Radio Emission ◽  
Energy Distribution ◽  
High Frequency ◽  
Angular Resolution ◽  
Radio Galaxies ◽  
Relativistic Electrons ◽  
Frequency Measurements ◽  
Centaurus A

Since early 1974 the radioheliograph operated by the Division of Radiophysics at Culgoora, N.S.W. has been used in a 160 MHz study of ~2000 catalogued sources in the declination range -46° to +35°. In addition to measurements of flux densities and accurate positions at 160 MHz, brightness distributions are obtained for the sources that can be resolved by the 1’.9 × 1’.9 arc beams. A comparison of the brightness distributions at 160 MHz with those obtained from high-frequency measurements with similar angular resolution can yield valuable information about the energy distribution of the relativistic electrons, which are believed to be responsible for the radio emission from most nonthermal sources. Among the first objects to be examined were the strong southern radio galaxies Centaurus-A and Pictor-A.

High-Resolution Frequency Measurements of Far-Infrared Laser Lines

2010 ◽  
Vol 46 (4) ◽  
pp. 474-477 ◽  
Author(s):  
Elizabeth J. Ehasz ◽  
Thomas M. Goyette ◽  
Robert H. Giles ◽  
William E. Nixon
Keyword(s):  
High Resolution ◽  
Far Infrared ◽  
Infrared Laser ◽  
Far Infrared Laser ◽  
Frequency Measurements

Observations of the spatial structure of interstellar hydrogen

1967 ◽  
Vol 31 ◽  
pp. 45-46
Author(s):  
Carl Heiles
Keyword(s):  
High Resolution ◽  
Spatial Structure ◽  
Velocity Dispersion ◽  
Temperature Variations

High-resolution 21-cm line observations in a region aroundlII= 120°,b11= +15°, have revealed four types of structure in the interstellar hydrogen: a smooth background, large sheets of density 2 atoms cm-3, clouds occurring mostly in groups, and ‘Cloudlets’ of a few solar masses and a few parsecs in size; the velocity dispersion in the Cloudlets is only 1 km/sec. Strong temperature variations in the gas are in evidence.

Combining integrated systems-biology approaches with intervention-based experimental design provides a higher-resolution path forward for microbiome research

2019 ◽  
Vol 42 ◽  
Author(s):  
J. Alfredo Blakeley-Ruiz ◽  
Carlee S. McClintock ◽  
Ralph Lydic ◽  
Helen A. Baghdoyan ◽  
James J. Choo ◽  
...  
Keyword(s):  
Systems Biology ◽  
High Resolution ◽  
Experimental Design ◽  
Integrated Systems ◽  
Microbiome Research ◽  
Constructive Criticism

Abstract The Hooks et al. review of microbiota-gut-brain (MGB) literature provides a constructive criticism of the general approaches encompassing MGB research. This commentary extends their review by: (a) highlighting capabilities of advanced systems-biology “-omics” techniques for microbiome research and (b) recommending that combining these high-resolution techniques with intervention-based experimental design may be the path forward for future MGB research.

Very High Resolution Analysis of the Dynamics of a Coronal Plasmoid

1994 ◽  
Vol 144 ◽  
pp. 593-596
Author(s):  
O. Bouchard ◽  
S. Koutchmy ◽  
L. November ◽  
J.-C. Vial ◽  
J. B. Zirker
Keyword(s):  
High Resolution ◽  
Solar Eclipse ◽  
Total Solar Eclipse ◽  
Field Of View ◽  
Small Field ◽  
High Resolution Analysis ◽  
Ccd Observations ◽  
Resolution Analysis ◽  
Very High ◽  
Small Field Of View

AbstractWe present the results of the analysis of a movie taken over a small field of view in the intermediate corona at a spatial resolution of 0.5“, a temporal resolution of 1 s and a spectral passband of 7 nm. These CCD observations were made at the prime focus of the 3.6 m aperture CFHT telescope during the 1991 total solar eclipse.

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