scholarly journals Deexcitation Probabilities of Ne(3P2) by Ar for the Case E << D

1970 ◽  
Vol 24 ◽  
pp. 19-23
Author(s):  
Deba Bahadur Khadka
Keyword(s):  
Cross Section ◽  
Chemical Society ◽  
Ionization Cross ◽  
Penning Ionization ◽  
Collisional Energy ◽  
Theoretical Investigations ◽  
Probability Calculation ◽  
Energy Pulse ◽  
The Mean ◽  
Made In

The deexcitaion probability calculation of the total Penning ionization cross section for Ne(3P2) by Ar has been made in the region of the collisional energy from 18.5 to 38.1 meV. Comparing the magnitude of the mean collisional energy with respect to D, the application of the analysis in the case E >> D is expected to be more appropriate than in the case E << D. More advance theoretical investigations for Ne(3P2) by Ar should consider the further understanding. Keywords: Deexcitation cross section; Collisional energy; Pulse radiolysis method; Metastable atoms; Impact parameter.DOI: 10.3126/jncs.v24i0.2382 Journal of Nepal Chemical Society, Vol. 24, 2009 Page: 19-23    

scholarly journals Deexcitation Probabilities of Ne(3P2) by Kr for the Case E << D

1970 ◽  
Vol 24 ◽  
pp. 45-48
Author(s):  
Deba Bahadur Khadka
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Chemical Society ◽  
Ionization Cross ◽  
Penning Ionization ◽  
Collisional Energy ◽  
Theoretical Investigations ◽  
Probability Calculation ◽  
The Mean ◽  
Made In

The deexcitation probability calculation of the total Penning ionization cross section for Ne(3P2) by Kr has been made in the region of the collisional energy from 18.5 to 38.1 meV. Considering the magnitude of the mean collisional energy with respect to D, the application of the analysis in the case E >> D is expected to be more appropriate than in the case E << D. Theoretical investigations of Ne(3P2) by Kr for the case E >> D are also needed.Keywords: metastable atoms, resonance atoms, deexcitation cross sections, pulse radiolysis, impact parameter.DOI: 10.3126/jncs.v24i0.2390Journal of Nepal Chemical Society Vol.24 Page 45-48

scholarly journals Deexcitation Probabilities of Ne(3P2) by Xe for the Case E << D

1970 ◽  
Vol 25 ◽  
pp. 70-74
Author(s):  
Deba Bahadur Khadka
Keyword(s):  
Cross Sections ◽  
Chemical Society ◽  
Ionization Cross ◽  
Penning Ionization ◽  
Collisional Energy ◽  
Theoretical Investigations ◽  
Probability Calculation ◽  
The Mean ◽  
Insight Into ◽  
Made In

The deexcitaion probability calculation of the total Penning ionization cross sectionfor Ne(3P2) by Xe has been made in the region of the collisional energy from 18.5 to 38.1meV. The experimental cross sections have been compared with the deexcitation probabilityfor Ne(3P2) by Xe. Considering the magnitude of the mean collisional energy with respect toD, the application of the analysis in the case E >> D is expected to be more appropriatethan in the case E << D. For further insight into this results, it is also of great importanceto evaluate theoretical investigations of Ne(3P2) by Xe for the case E >> D.Keywords: Metastable atoms, deexcitation probabilities, pulse radiolysis, collisionalenergy, potential well depthDOI:  10.3126/jncs.v25i0.3304Journal of Nepal Chemical Society Volume 25, 2010 pp 70-74

scholarly journals Calculation of Deexcitation Probability of Ne(3P2) by Ar for the Case E>>D

2013 ◽  
Vol 30 ◽  
pp. 52-55
Author(s):  
Deba Bahadur Khadka
Keyword(s):  
Cross Section ◽  
Ionization Cross Section ◽  
Chemical Society ◽  
Ionization Cross ◽  
Interaction Potentials ◽  
Penning Ionization ◽  
Collisional Energy ◽  
Probability Calculation

The deexcitaion probability calculation of the total Penning ionization cross section for Ne(3P2) by Ar has been made at collisional energy 38.1 meV. The comparison of deexcitationcross sections, polarizability, α/β , deexcitation probability, {IP(M)/IP(Ne*)}1/2 and the welldepth of interaction potentials for Ne(3P2) by Ar for the case E >> D has been made.DOI: http://dx.doi.org/10.3126/jncs.v30i0.9335Journal of Nepal Chemical Society Vol. 30, 2012 Page:  52-55 Uploaded date: 12/16/2013 

Searching for the causes why some of the paintings by Mihaly Munkacsy are darkening

1990 ◽  
Vol 48 (2) ◽  
pp. 204-205
Author(s):  
Imre Pozsgai ◽  
Klara Erdöhalmi-Torok
Keyword(s):  
Electron Beam ◽  
Cross Section ◽  
Polyester Resin ◽  
National Gallery ◽  
X Ray ◽  
Art Historians ◽  
Made In ◽  
Grinding And Polishing

The paintings by the great Hungarian master Mihaly Munkacsy (1844-1900) made in an 8-9 years period of his activity are deteriorating. The most conspicuous sign of the deterioration is an intensive darkening. We have made an attempt by electron beam microanalysis to clarify the causes of the darkening. The importance of a study like this is increased by the fact that a similar darkening can be observed on the paintings by Munkacsy’s contemporaries e.g Courbet and Makart. A thick brown mass the so called bitumen used by Munkacsy for grounding and also as a paint is believed by the art historians to cause the darkening.For this study, paint specimens were taken from the following paintings: “Studio”, “Farewell” and the “Portrait of the Master’s Wife”, all of them are the property of the Hungarian National Gallery. The paint samples were embedded in a polyester resin “Poly-Pol PS-230” and after grinding and polishing their cross section was used for x-ray mapping.

scholarly journals Sources of Variability in the Response of Labeled Microspheres and B Cells during the Analysis by a Flow Cytometer

2021 ◽  
Vol 22 (15) ◽  
pp. 8256
Author(s):  
Adolfas K. Gaigalas ◽  
Yu-Zhong Zhang ◽  
Linhua Tian ◽  
Lili Wang
Keyword(s):  
B Cells ◽  
Laser Beam ◽  
Cross Section ◽  
Mean Fluorescence Intensity ◽  
Numerical Aperture ◽  
Flow Cytometer ◽  
Fluorescence Signal ◽  
Minor Importance ◽  
Reliable Measure ◽  
The Mean

A stochastic model of the flow cytometer measurement process was developed to assess the nature of the observed coefficient of variation (CV%) of the mean fluorescence intensity (MFI) from a population of labeled microspheres (beads). Several sources of variability were considered: the total number of labels on a bead, the path through the laser beam, the optical absorption cross-section, the quantum yield, the numerical aperture of the collection optics, and the photoelectron conversion efficiency of the photomultiplier (PMT) cathode. The variation in the number of labels on a bead had the largest effect on the CV% of the MFI of the bead population. The variation in the path of the bead through the laser beam was minimized using flat-top lasers. The variability in the average optical properties of the labels was of minor importance for beads with sufficiently large number of labels. The application of the bead results to the measured CV% of labeled B cells indicated that the measured CV% was a reliable measure of the variability of antibodies bound per cell. With some modifications, the model can be extended to multicolor flow cytometers and to the study of CV% from cells with low fluorescence signal.

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