Exp‐6 Cell Model Calculations for the Inert Gas Solids. I. Characterization of Pair Potential Parameters with and without the Triple‐Dipole Term

1970 ◽  
Vol 52 (10) ◽  
pp. 5458-5469 ◽  
Author(s):  
Barry D. Utting ◽  
John Walkley
Keyword(s):  
Cell Model ◽  
Pair Potential ◽  
Inert Gas ◽  
Model Calculations ◽  
Dipole Term ◽  
Potential Parameters

Stiffening and End Processing of MAEAM Pair Potential for FCC Metals

2012 ◽  
Vol 424-425 ◽  
pp. 718-722
Author(s):  
Hak Son Jin ◽  
An Du
Keyword(s):  
Phonon Dispersion ◽  
Pair Potential ◽  
Embedded Atom Method ◽  
Model Calculations ◽  
Fcc Metals ◽  
Embedded Atom ◽  
Body Potential ◽  
Multi Body ◽  
Potential Parameters ◽  
Fcc Metal

A stiffening function and a truncated function of the pair-potential of the modified analytical embedded atom method (MAEAM) were suggested for fcc metals. Through fitting the mono-vacancy migration energy, the elastic constants, the cohesive energy and an equilibrium condition of fcc metal crystals correctly, we determined the stiffening parameter and changed the pair-potential parameters and the modification term parameter of the multi-body potential for fcc metals: Ag, Al, Au, Cu, Ir, Ni, Pd, Pt, and Rh. The model calculations fully demonstrate the phonon dispersion curves and the unrelaxed mono-vacancy properties of the nine fcc metals.

Study on MAEAM Multi-Body Potentials with Farther Neighbor Atoms for HCP Metals

2012 ◽  
Vol 424-425 ◽  
pp. 581-585
Author(s):  
Hak Son Jin ◽  
An Du
Keyword(s):  
Pair Potential ◽  
Processing Method ◽  
Structure Stability ◽  
Embedded Atom Method ◽  
Equilibrium Conditions ◽  
Model Calculations ◽  
Embedded Atom ◽  
Body Potential ◽  
Multi Body ◽  
Potential Parameters

An end processing method of the pair-potential of modified analytical embedded atom method (MAEAM) was suggested for hcp metals with farther neighbor atoms. Through fitting the elastic constants, the cohesive energy and two equilibrium conditions of hcp metal crystals correctly, we changed the pair-potential parameters and the modification term parameters of the multi-body potential. The model calculations fully demonstrate the structure stability and the unrelaxed mono-vacancy properties of six hcp metals: Co, Mg, Re, Ru, Ti and Zr.

End Processing of MAEAM Pair Potential for BCC Metals

2012 ◽  
Vol 424-425 ◽  
pp. 568-572
Author(s):  
Hak Son Jin ◽  
An Du
Keyword(s):  
Phonon Dispersion ◽  
Pair Potential ◽  
Embedded Atom Method ◽  
Model Calculations ◽  
Phonon Dispersion Curves ◽  
Bcc Metals ◽  
Embedded Atom ◽  
Body Potential ◽  
Multi Body ◽  
Potential Parameters

An end processing function of the pair-potential of modified analytical embedded atom method (MAEAM) was suggested for bcc metals. Through fitting the elastic constants, cohesive energy and an equilibrium condition of bcc metal crystals correctly, we changed the pair-potential parameters and the modification term parameter of the multi-body potential. The model calculations fully demonstrate the structure stabilities and the phonon dispersion curves of seven bcc transition metals: Cr, Fe, Mo, Nb, Ta, V and W.

scholarly journals Structural Evaluation of Molten Aluminosilicate by Combining Impedance Measurements and Cell Model Calculations

2020 ◽  
Vol 60 (1) ◽  
pp. 42-50
Author(s):  
Yusuke Harada ◽  
Nobuo Nishioka ◽  
Noritaka Saito ◽  
Kunihiko Nakashima
Keyword(s):  
Cell Model ◽  
Model Calculations ◽  
Impedance Measurements ◽  
Structural Evaluation

scholarly journals Identification of Potential Key lncRNAs in the Context of Mouse Myeloid Differentiation by Systematic Transcriptomics Analysis

Genes ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 630
Author(s):  
Yongqing Lan ◽  
Meng Li ◽  
Shuangli Mi
Keyword(s):  
Transcription Factor ◽  
Cell Model ◽  
Myeloid Differentiation ◽  
Rna Seq ◽  
Hematopoietic Differentiation ◽  
Granulocytic Differentiation ◽  
Expression Of Genes ◽  
Non Coding Rnas

Hematopoietic differentiation is a well-orchestrated process by many regulators such as transcription factor and long non-coding RNAs (lncRNAs). However, due to the large number of lncRNAs and the difficulty in determining their roles, the study of lncRNAs is a considerable challenge in hematopoietic differentiation. Here, through gene co-expression network analysis over RNA-seq data generated from representative types of mouse myeloid cells, we obtained a catalog of potential key lncRNAs in the context of mouse myeloid differentiation. Then, employing a widely used in vitro cell model, we screened a novel lncRNA, named Gdal1 (Granulocytic differentiation associated lncRNA 1), from this list and demonstrated that Gdal1 was required for granulocytic differentiation. Furthermore, knockdown of Cebpe, a principal transcription factor of granulocytic differentiation regulation, led to down-regulation of Gdal1, but not vice versa. In addition, expression of genes involved in myeloid differentiation and its regulation, such as Cebpa, were influenced in Gdal1 knockdown cells with differentiation blockage. We thus systematically identified myeloid differentiation associated lncRNAs and substantiated the identification by investigation of one of these lncRNAs on cellular phenotype and gene regulation levels. This study promotes our understanding of the regulation of myeloid differentiation and the characterization of roles of lncRNAs in hematopoietic system.

scholarly journals The 7Be(p, ?)8B Cross Section at Low Energies

1980 ◽  
Vol 33 (2) ◽  
pp. 177 ◽  
Author(s):  
FC Barker
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Solar Neutrinos ◽  
Model Calculations ◽  
Spectroscopic Factors ◽  
Low Energies ◽  
Standard Values ◽  
Experimental Values ◽  
Parameter Values ◽  
Potential Parameters

The nonresonant part of the 7Be(p, )I)8B cross section at low energies is recalculated by means of a direct-capture potential model, using parameter values determined by fitting 7Li(n, n)7Li and 7Li(n, )I)8Li data. Standard values of the potential parameters and spectroscopic factors give values of the 7Li(n,)I) cross section that are too large. Modified values that fit the thermal-neutron capture cross section predict 7Be(p,)I) cross sections that are much less than the experimental values. Also, shell model calculations predict resonant 7Be(p,)I) cross sections that are smaller than the experimental values. It is suggested that the accepted experimental values of the 7Be(p, )I) cross section may be too large, perhaps due partly to an overlarge accepted value for the 7Li(d, p)8Li cross section, which has been used for normalization purposes. A decrease in the 7Be(p,)I) cross section would reduce the calculated detection rate of solar neutrinos and lessen the discrepancy with the measured value.

Dissimilar Metal Inert Gas Welding Characterization of Aluminum and Copper using Zinc Interlayer

2020 ◽  
pp. 519-523
Author(s):  
Sherin Thampi ◽  
Alan K. Joy ◽  
Albin Varghese ◽  
Anoop Raj ◽  
Alen Mathew ◽  
...  
Keyword(s):  
Inert Gas ◽  
Dissimilar Metal ◽  
Zinc Interlayer ◽  
Metal Inert Gas Welding
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