Perturbation-theoretical-model calculation of the lattice mechanics of the NaF and RbF crystals in the Watson potential approximation

1984 ◽  
Vol 29 (6) ◽  
pp. 3632-3638 ◽  
Author(s):  
D. Bose ◽  
A. Ghosh ◽  
A. N. Basu
Keyword(s):  
Theoretical Model ◽  
Model Calculation ◽  
Potential Approximation ◽  
Lattice Mechanics

Theoretical Model Calculation for d + 8 Li Reaction

2008 ◽  
Vol 50 (2) ◽  
pp. 463-467
Author(s):  
Han Yin-Lu ◽  
Guo Hai-Rui ◽  
Zhang Yue ◽  
Zhang Jing-Shang
Keyword(s):  
Theoretical Model ◽  
Model Calculation

The evaluation of the bouncing model of caliper pig’s detection arm in subsea gas pipelines

2018 ◽  
Vol 233 (3) ◽  
pp. 735-744
Author(s):  
Xiaolong Li ◽  
Renyang He ◽  
Tao Meng ◽  
Shimin Zhang
Keyword(s):  
Theoretical Model ◽  
Magnetic Flux ◽  
Experimental Method ◽  
Model Calculation ◽  
Ultrasonic Test ◽  
Magnetic Flux Leakage ◽  
Transport Capacity ◽  
Gas Pipelines ◽  
Deformation Defect ◽  
Flux Leakage

Caliper pigs are widely used for measuring pipeline internal geometry and detecting anomalies, such as dents, wrinkles and flat spots. Due to its excellent transport capacity, caliper pig is more widely used in subsea gas pipelines than smart pig, such as Magnetic Flux Leakage (MFL) pig or Ultrasonic Test (UT) pig. In this article, the bouncing process of detection arm of caliper pig across convex defect is studied. And then, the influence of the collision between the detection arm and deformation defect, as well as the defect shape on the bounce, is discussed. Based on that, a bouncing theoretical model of the detection arm is developed for analyzing the bouncing phenomenon. Furthermore,the bouncing process that the detection arm moves across the convex defect with different velocities and different initial spring forces is studied by experimental method. The bouncing model calculation value is approximately equal with the experimental value, verifying the validity of the bouncing model. The bouncing model has a great significance for caliper pig evaluating the pipeline convex defect.

scholarly journals Coherent e+e- production at very low transverse momentum at STAR

2018 ◽  
Vol 171 ◽  
pp. 18016 ◽  
Author(s):  
Chi Yang
Keyword(s):  
Theoretical Model ◽  
Transverse Momentum ◽  
Pair Production ◽  
Spectral Function ◽  
Model Calculation ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collider ◽  
200 Gev ◽  
Star Detector

We report the measurements of e+e- pair production at very low e+e- pair transverse momentum (pT < 0.15 GeV/c) in Au+Au collisions at [see formula in PDF] = 200 GeV and U+U collisions at [see formula in PDF] = 193 GeV using the STAR detector at the Relativistic Heavy Ion Collider. In 60-80% centrality, significant excesses are observed with respect to hadronic cocktails in both Au+Au and U+U collisions. These excess yields can not be explained by a theoretical model calculation incorporating in-medium broadened ρ spectral function. Additionally, the [see formula in PDF] distribution for excess yield is shown and found to be exponential at very low pT.

A theoretical model calculation of measurement of anisotropic resistivity for high Tc superconductor

2000 ◽  
Vol 334 (1-2) ◽  
pp. 44-54 ◽  
Author(s):  
Yu Liu ◽  
Chen Zhang ◽  
Tao Wen ◽  
Jixin Dai ◽  
W.E. Evenson ◽  
...  
Keyword(s):  
Theoretical Model ◽  
Model Calculation ◽  
High Tc ◽  
High Tc Superconductor

A Model for Analyzing Suicide Prevention

Crisis ◽  
2000 ◽  
Vol 21 (2) ◽  
pp. 80-89 ◽  
Author(s):  
Maila Upanne
Keyword(s):  
Risk Factors ◽  
Theoretical Model ◽  
Protective Factors ◽  
Suicide Prevention ◽  
Suicide Risk ◽  
Practical Work ◽  
Individual Risk ◽  
Self Assessment ◽  
Prevention Project ◽  
Individual Risk Factors

This study monitored the evolution of psychologists' (n = 31) conceptions of suicide prevention over the 9-year course of the National Suicide Prevention Project in Finland and assessed the feasibility of the theoretical model for analyzing suicide prevention developed in earlier studies [ Upanne, 1999a , b ]. The study was formulated as a retrospective self-assessment where participants compared their earlier descriptions of suicide prevention with their current views. The changes in conceptions were analyzed and interpreted using both the model and the explanations given by the subjects themselves. The analysis proved the model to be a useful framework for revealing the essential features of prevention. The results showed that the freely-formulated ideas on prevention were more comprehensive than those evolved in practical work. Compared to the earlier findings, the conceptions among the group had shifted toward emphasizing a curative approach and the significance of individual risk factors. In particular, greater priority was focused on the acute suicide risk phase as a preventive target. Nonetheless, the overall structure of prevention ideology remained comprehensive and multifactorial, stressing multistage influencing. Promotive aims (protective factors) also remained part of the prevention paradigm. Practical working experiences enhanced the psychologists' sense of the difficulties of suicide prevention as well as their criticism and feeling of powerlessness.

Do self-compassion and self-coldness distinctly relate to distress and well-being? A theoretical model of self-relating.

2018 ◽  
Vol 65 (3) ◽  
pp. 346-357 ◽  
Author(s):  
Rachel E. Brenner ◽  
David L. Vogel ◽  
Daniel G. Lannin ◽  
Kelsey E. Engel ◽  
Andrew J. Seidman ◽  
...  
Keyword(s):  
Theoretical Model ◽  
Well Being ◽  
Self Compassion
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