Deconvolution of the Lorentzian Linewidth and Determination of Fraction Lorentzian Character from the Observed Profile of a Raman Line by a Comparison Technique

1982 ◽  
Vol 36 (3) ◽  
pp. 250-257 ◽  
Author(s):  
B. P. Asthana ◽  
W. Kiefer
Keyword(s):  
Experimental Determination ◽  
Raman Line ◽  
Good Accuracy ◽  
Half Maximum ◽  
Difference Spectroscopy ◽  
Simple Method ◽  
Spectrometer Slit ◽  
The Given ◽  
Comparison Technique

We report on a simple method to derive the Lorentzian linewidth of a Raman line as well as its fraction Lorentzian character. The method is based on the experimental determination of the bandwidths at half maximum obtained from recorded Raman and plasma lines with same spectrometer slit settings. From the ratio of the two half bandwidths, the Lorentzian Raman linewidth can be easily derived from the given table. This table was compiled by explicit calculations of Voigt profiles. The fraction Lorentzian character, needed for instance for Raman difference spectroscopy, can be obtained directly from this table to a good accuracy.

scholarly journals Simple Method for Estimating the Contribution of Neighbouring n-beam Interactions to Two-beam Structure Factors

1988 ◽  
Vol 41 (3) ◽  
pp. 469
Author(s):  
HJ Juretschke ◽  
HK Wagenfeld
Keyword(s):  
Experimental Determination ◽  
Structure Factor ◽  
Beam Structure ◽  
Simple Method ◽  
Experimental Configuration ◽  
Structure Factors ◽  
Special Cases ◽  
Better Than

Unless special precautions are taken, the experimental determination of two-beam structure factors to better than 1 % may include contributions from neighbouring n-beam interactions. In any particular experimental configuration, corrections for such contributions are easily carried out using the modified two-beam structure factor formalism developed recently (Juretschke 1984), once the full indexing of the pertinent n-beam interactions is known. The method is illustrated for both weak and strong primary reflections and its applicability in special cases, as well as for less than perfect crystals, is discussed.

Determination of Concrete Resistance to Corrosive Effects of Water with Aggressive CO2 Using Model Mortars

2020 ◽  
Vol 309 ◽  
pp. 31-37
Author(s):  
Dalibor Kocáb ◽  
Ivailo Terzijski ◽  
Jiří Strnad ◽  
Michal Ševčík
Keyword(s):  
Carbon Dioxide ◽  
Experimental Determination ◽  
The Third ◽  
The Given

The paper deals with an experimental determination of resistance of concrete to the corrosive effects of demineralised water with aggressive carbon dioxide. Three types of concrete were used for the experiment, one designated for reference, another one contained a crystallising admixture, and the third type contained admixtures and was designed to be very resistant. The actual tests were, however, not conducted directly on these concretes but on model mortars derived from those concretes. The paper provides reasons why the tests specimens were produced from the model mortars and not from the given concretes. The conclusion of this paper presents not only the results of the described experiment but also comparisons with the results of previously conducted and published tests.

Determination of the mean multiplicity of particles produced in a nuclear interaction using the method of the inverse problem

1968 ◽  
Vol 46 (10) ◽  
pp. S718-S721
Author(s):  
V. A. Astafiev
Keyword(s):  
Inverse Problem ◽  
Simple Model ◽  
Energy Range ◽  
Good Accuracy ◽  
Nuclear Interaction ◽  
Energy Spectra ◽  
Low Energies ◽  
The Mean ◽  
The Given

The possibility of the determination of the mean multiplicity of secondaries, n(E), with the aid of the cascade characteristics has been studied using the nuclear cascade with one-type particles as an example. For the simple model of interaction with the inelasticity coefficient k = 1 the energy spectra of particles in the showers produced by the particles of various energies have been calculated. The function n(E) has been restored in the higher-energy range on the assumption that the calculated spectra are known from the "experiment," and the function n(E) at low energies has been measured within good accuracy. Estimates of the accuracy of the cascade data necessary for determining n(E) within the given accuracy are presented.

Experimental Determination of Vehicle Lateral Drift Characteristics under Laboratory Conditions

2012 ◽  
Vol 232 ◽  
pp. 836-840
Author(s):  
Konrad J. Waluś
Keyword(s):  
Experimental Determination ◽  
Axial Loads ◽  
Surface Type ◽  
Safe Driving ◽  
Drift Motion ◽  
Lateral Drift ◽  
Motion Parameters ◽  
The Given ◽  
Drift Forces

Safe driving requires from the driver several visual-mental activities (perception, recognition and decide) and manual activities relating to the implementation of specific movements. Vehicle responding to the given force is subjected a three axial loads that are transferred through the frictional coupling of tire and pavement Generated during the movement, in particular, curvilinear, lateral drift forces act directly on the tire tread and indirectly by steering to the driver. The value of these forces depends on the angle of the lateral drift, motion parameters and surface type. The paper presents results of experimental determination of lateral forces on the drift the running machine with five-component hub.

Development of a simple method for the determination of single nucleotide polymorphisms

2010 ◽  
Vol 34 (8) ◽  
pp. S75-S75
Author(s):  
Weifeng Zhu ◽  
Zhuoqi Liu ◽  
Daya Luo ◽  
Xinyao Wu ◽  
Fusheng Wan
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Nucleotide Polymorphisms ◽  
Simple Method ◽  
Single Nucleotide

Experimental determination of a state equation for dissipative granular gases

1999 ◽  
Vol 96 (6) ◽  
pp. 1111-1116 ◽  
Author(s):  
E. Falcon ◽  
S. Fauve ◽  
C. Laroche
Keyword(s):  
Experimental Determination ◽  
State Equation ◽  
Granular Gases
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