Intercorrelated Satellite And Ground Observations And Model Calculations Of Magnetic Storms

Thesis (Ph.D.) University of Alaska Fairbanks, 197

Numerical Simulation of Tsunami Run-up and Inundation Employing Horizontal Two-dimensional Model Based on CIP Method

AbstractA two-dimensional tsunami run-up and inundation model based on a CIP method was developed in this study so as to satisfy the continuity equation with reasonable accuracy. Numerical simulations on tsunami bore were carried out in order to validate the model and discuss the effects of wet-dry condition and overflow condition on the calculation accuracy. As a result, the model was confirmed to be able to represent closely actual water surface profile by using the slip condition on the wet-dry condition. Furthermore, the numerical results without the overflow formula were found to be in good agreement with the experimental ones

Right-handed sneutrino dark matter and big-bang nucleosynthesis

We study the light-element abundances in supersymmetric model where the right-handed sneutrino is the lightest superparticle (LSP), assuming that the neutrino masses are purely Dirac-type. In such a scenario, the lightest superparticle in the minimal supersymmetric standard model sector (which we call MSSM-LSP) becomes long-lived, and thermal relic MSSM-LSP may decay after the big-bang nucleosynthesis starts. We calculate the light-element abundances including non-standard nuclear reactions induced by the MSSM-LSP decay, and derive constraints on the scenario of right-handed sneutrino LSP.Comment: 13 pages, 4 figure

Numerical Simulation of Water Quality Structure in Ise Bay at Tokai Heavy Rain Using Atmosphere-Ocean-Wave-Water Quality Coupled Model

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Plastic Deformation of Foil Copper Crystals. II : Electron Microscopical Study

In order to study the relation between work-hardening characteristics of 10.0 and 50.8μ copper foil crystals and dislocation phenomena occurring in them, the distribution patterns of residual dislocations in the crystals have been observed as a function of strain, orientation, and specimen thickness. Dislocation tangles were found at an early stage in the deformation of a specimen that showed the lowest value of the work-hardening rate. Tangles developing only along one kind of slip planes were observed in specimens showing low work-hardening rates. On the other hand, in specimens with high hardening rates, the development of cell structure is found without exception. The structures of the cell boundaries become more complex and, at the same time, the sizes of cells decrease as the strain increases. Configurations which are thought to show the formation of sessile dislocations, and pile-ups against them were also observed. It is suggested that the cell structure is formed because of irregular and complex motions of dislocations determined by the complex internal stress field originating from dislocations accumulated during deformation

Regulation of dynamic structure of cyclophanes by their complexation with the porphyrin

Dithia[3.3]metacyclophanes which consist of the pyridine unit connecting to the different positions of the parent cyclophane skeleton have been prepared. Conformational change has been observed for the cyclophane having a 4-substituted pyridine unit by binding to the porphyrin. In contrast the porphyrin binding has no influence on conformational behavior of the cyclophane having a 3-substituted pyridine unit

Regulation of dynamic structure of cyclophanes by their complexation with the porphyrin

Dithia[3.3]metacyclophanes which consist of the pyridine unit connecting to the different positions of the parent cyclophane skeleton have been prepared. Conformational change has been observed for the cyclophane having a 4-substituted pyridine unit by binding to the porphyrin. In contrast the porphyrin binding has no influence on conformational behavior of the cyclophane having a 3-substituted pyridine unit