Two-Dimensional Analysis of Dune Profile and the Effect of Grain Size on Sand Dune Morphology

1986 ◽  
pp. 94-108 ◽  
Author(s):  
Haim Tsoar
Keyword(s):  
Grain Size ◽  
Dimensional Analysis ◽  
Sand Dune ◽  
Two Dimensional ◽  
Dune Morphology

Effect of the lifetime of the intermediate 5Li state in the 6Li(3He, αp)4He reaction

1968 ◽  
Vol 46 (20) ◽  
pp. 2241-2251 ◽  
Author(s):  
M. A. Reimann ◽  
P. W. Martin ◽  
E. W. Vogt
Keyword(s):  
Dimensional Analysis ◽  
Energy Dependence ◽  
Ground State ◽  
Intermediate State ◽  
Two Dimensional ◽  
Short Life ◽  
Semiclassical Model ◽  
Analysis Technique ◽  
The Asymmetry

A cylindrical asymmetry about the direction of motion of 5Li has been seen in the breakup of the ground state of this nucleus observed as an intermediate state in the reaction 6Li(3He, pα)4He. Measurements were made at bombarding energies of 1.00, 1.25, and 1.50 MeV with isotopically enriched LiF targets using a two-dimensional analysis technique. We explain both the rough magnitude of the asymmetry and its qualitative energy dependence in terms of a simple semiclassical model. In this model the origin of the asymmetry is associated with the short life of the 5Li intermediate state and with the memory retained by the proton during this short life of its "localization" at the time of formation of 5Li.

A Three-Dimensional Analysis of Thermohydrodynamic Performance of Sector-Shaped, Tilting-Pad Thrust Bearings

1983 ◽  
Vol 105 (3) ◽  
pp. 406-412 ◽  
Author(s):  
Kyung Woong Kim ◽  
Masato Tanaka ◽  
Yukio Hori
Keyword(s):  
Dimensional Analysis ◽  
Environmental Conditions ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Thrust Bearings ◽  
Tilting Pad ◽  
Dimensional Variation ◽  
Lubricant Viscosity

The thermohydrodynamic performance of the bearing is analyzed, taking into account the three-dimensional variation of lubricant viscosity and density. The effect of pivot position and operating and environmental conditions on the performance is studied. The present analysis is compared with the isoviscous or the two-dimensional analysis, and is found to predict the bearing performance more accurately.

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