Numerical and Monte Carlo study of positron production in a hybrid scheme based on 〈1 0 0〉 axial channeling radiation in a Si single crystal

2019 ◽  
Vol 458 ◽  
pp. 72-76 ◽  
Author(s):  
S.A. Mahdipour ◽  
B. Azadegan ◽  
A.A. Mowlavi ◽  
M. Shafeei ◽  
W. Wagner
Keyword(s):  
Monte Carlo ◽  
Single Crystal ◽  
Monte Carlo Study ◽  
Hybrid Scheme ◽  
Axial Channeling ◽  
Channeling Radiation ◽  
Positron Production

Hydrogen Adsorption on Nickel (100) Single-Crystal Face. A Monte Carlo Study of the Equilibrium and Kinetics

2005 ◽  
Vol 109 (21) ◽  
pp. 10986-10994 ◽  
Author(s):  
Tomasz Panczyk ◽  
Pawel Szabelski ◽  
Wladyslaw Rudzinski
Keyword(s):  
Monte Carlo ◽  
Single Crystal ◽  
Hydrogen Adsorption ◽  
Monte Carlo Study ◽  
Crystal Face ◽  
Equilibrium And Kinetics

Single-crystal neutron diffuse scattering and Monte Carlo study of the relaxor ferroelectric PbZn1/3Nb2/3O3(PZN)

2005 ◽  
Vol 38 (4) ◽  
pp. 639-647 ◽  
Author(s):  
T. R. Welberry ◽  
M. J. Gutmann ◽  
Hyungje Woo ◽  
D. J. Goossens ◽  
Guangyong Xu ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Single Crystal ◽  
Opposite Sign ◽  
Three Dimensional ◽  
Lone Pair ◽  
Monte Carlo Study ◽  
Relaxor Ferroelectric ◽  
Scattering Data ◽  
Oriented Parallel ◽  
Diffuse Neutron

Full three-dimensional diffuse neutron scattering data have been recorded from a single crystal of Pb(Zn1/3Nb2/3)O3(PZN) at 300 K using the time-of-flight Laue technique on the SXD single-crystal instrument at ISIS. The data show a series of diffuse rods of scattering oriented parallel to each of the six 〈1 1 0〉 crystal directions. Monte Carlo simulation has been used to demonstrate that the diffuse rods are caused by planar nanodomains oriented normal to the 〈1 1 0〉 directions. Within these domains, there are correlated displacements of the atoms away from their average site positions. In order to explain the systematic absence of some rods of scattering in the (h k 1) data but the presence of all rods in the (h k 0) data, it is necessary that the displacement of an O atom is of opposite sign to that of its neighbouring Pb atoms. This is explained in terms of a model based on the fact that Pb2+possesses a lone pair of electrons, giving the Pb ion directionality.

Monte Carlo Study of the Polycrystalline Ni2MnGa Heusler Alloy

2015 ◽  
Vol 233-234 ◽  
pp. 251-254 ◽  
Author(s):  
O.O. Pavlukhina ◽  
V.V. Sokolovskiy ◽  
Vasiliy D. Buchelnikov
Keyword(s):  
Experimental Data ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Single Crystal ◽  
Heusler Alloy ◽  
Theoretical Calculations ◽  
Monte Carlo Study ◽  
Magnetic Domains ◽  
Polycrystalline Structures ◽  
Good Agreement

In this work, we report on the theoretical calculations of the temperature dependence of magnetization in Ni2MnGa alloy by Monte Carlo simulation. The calculations have been carried out for the single crystal and polycrystalline structures with 16, 32 and 64 magnetic domains. The theoretically calculated results are in good agreement with the experimental data.

CO oxidation on stepped single crystal electrodes: A dynamic Monte Carlo study

2007 ◽  
Vol 607 (1-2) ◽  
pp. 69-82 ◽  
Author(s):  
T.H.M. Housmans ◽  
C.G.M. Hermse ◽  
M.T.M. Koper
Keyword(s):  
Monte Carlo ◽  
Single Crystal ◽  
Co Oxidation ◽  
Monte Carlo Study ◽  
Dynamic Monte Carlo

An integral equation and Monte Carlo study of homo- and hetero nuclear square-well diatomic fluids

2000 ◽  
Vol 98 (24) ◽  
pp. 2033-2043
Author(s):  
Vít Jirásek, Stanislav Labík, Anatol Ma
Keyword(s):  
Integral Equation ◽  
Monte Carlo ◽  
Monte Carlo Study ◽  
Square Well

Analyzing Observed Composite Differences Across Groups

Methodology ◽  
2013 ◽  
Vol 9 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Holger Steinmetz
Keyword(s):  
Monte Carlo ◽  
Structural Equation Modeling ◽  
Measurement Invariance ◽  
Structural Equation ◽  
Monte Carlo Study ◽  
Equation Modeling ◽  
Factor Loadings ◽  
Latent Mean Differences ◽  
Partial Invariance ◽  
Mean Differences

Although the use of structural equation modeling has increased during the last decades, the typical procedure to investigate mean differences across groups is still to create an observed composite score from several indicators and to compare the composite’s mean across the groups. Whereas the structural equation modeling literature has emphasized that a comparison of latent means presupposes equal factor loadings and indicator intercepts for most of the indicators (i.e., partial invariance), it is still unknown if partial invariance is sufficient when relying on observed composites. This Monte-Carlo study investigated whether one or two unequal factor loadings and indicator intercepts in a composite can lead to wrong conclusions regarding latent mean differences. Results show that unequal indicator intercepts substantially affect the composite mean difference and the probability of a significant composite difference. In contrast, unequal factor loadings demonstrate only small effects. It is concluded that analyses of composite differences are only warranted in conditions of full measurement invariance, and the author recommends the analyses of latent mean differences with structural equation modeling instead.

Detecting Between-Groups Heteroscedasticity in MMR: A Monte Carlo Study

2011 ◽  
Author(s):  
Patrick J. Rosopa ◽  
Amber N. Schroeder ◽  
Jessica Doll
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Study

Monte Carlo study of 50 nm-long single and dual-gate MODFETs: suppression of short-channel effects

1993 ◽  
Vol 3 (9) ◽  
pp. 1719-1728
Author(s):  
P. Dollfus ◽  
P. Hesto ◽  
S. Galdin ◽  
C. Brisset
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Study ◽  
Short Channel Effects ◽  
Short Channel ◽  
Channel Effects ◽  
Dual Gate
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