強磁場白色矮星からの非熱的放射の観測的探査

学位記号番号 : 博理工甲第900号博士の専攻分野の名称 : 博士(理学) 学位授与年月日 : 平成25年3月22日textapplication/pdfthesi

(Office of the Non-Formal Education Commission:ONFEC)

text紀要論文 / Departmental Bulletin Paperdepartmental bulletin pape

失われた音楽を求めて (3)

2001-03-09departmental bulletin pape

Maternal acceptability of radiation exposure to children - Relationship with maternal knowledge about radiation exposure influence on children -

The maternal acceptability of radiation exposure to her children was examined and was compared with her knowledge about radiation exposure influence on children to prevent over-care to children. It is thought to be important to prevent excessive confusion or over-care to children due to lack of mother's knowledge and understanding about radiation in the case of nuclear accidents. A questionnaire survey was conducted and the results were tested by Wilcoxon signed rank test. It was found that the degree of knowledge increased the acceptability of the exposure. It leads to the conclusion that providing appropriate information to mothers on radiation exposure to children could improve their self-efficacy regarding care for their children and be effective in preventing over-care.departmental bulletin pape

Study of time-dependent CP-violating asymmetries in b→sq̅q decays

journal articl

CFD simulation of flow in model pump sumps for detection of vortices

application/pdfDemand is high for reducing the size of sumps to reduce construction costs of urban drainage pump stations. As a result of the reduction in size, undesirable vortices like air-entrained and submerged vortices are apt to appear in the sumps because of increases in flow velocities. Based on criteria in the JSME Standard, the appearance of such vortices is not permissible for conventional sumps, experiments with scale models usually have been done to assess the performance of these sumps. However, those tests are expensive and time-consuming, and therefore, alternative CFD methods for evaluating sump performance have been expected. The JSME Standard "Standard Method for Model Testing the performance of a Pump Sump" was revised in March 2005 by a committee of the Turbomachinery Society of Japan. The committee also established a benchmark for flows in model sumps applying ten CFD codes. The calculated results were compared for flow patterns, locations of vortices, and their vorticity. Although the simulated flow patterns near the bell are almost all the same, the calculated values of the local vorticity were much more different among the various codes. It was confirmed that the existence of air-entrained and submerged vortices could be predicted by applying a newly developed identification method for vortices.8th Asian International Fluid Machinery Conference October 12-15, 2005・Yichang, Chinaconference pape

学校教育における子どもの自立を育てることの意義に関する研究 -O教師学級の卒業生へのインタビューを通して

application/pdf三重大学大学院教育学研究科 教育科学専攻 学校教育領域63thesi

カヘン コウゾウ シミュレーション システム ノ キノウ カクチョウ

奈良先端科学技術大学院大学修士(工学)master thesi

Effects of Substitution of OH Group by F Atom for Conformational Preferences of Fluorine-Substituted Analogues of (<i>R</i>,<i>R</i>)-Tartaric Acid, Its Dimethyl Diester, Diamide, and <i>N</i>,<i>N</i>,<i>N</i>‘,<i>N</i>‘-Tetramethyl Diamide. Ab Initio Conformational Analysis

High-level ab initio methods up to MP2/6-311++G**//RHF/6-31G* have been used to characterize the conformations of isolated molecules of (2S,3S)-2,3-dideoxy-2,3-difluorotartaric acid (FTA) and its dimethyl diester (FME), diamide (FAM), and N,N,N‘,N‘-tetramethyldiamide (FTMA). A wide range of possible structures (84 for FTA and 63 for FME, FAM, FTMA) has been surveyed at the RHF/3-21G level. At the highest level of theory, 23 conformers were located for FTA, 15 for FME, 9 for FAM, and 11 for FTMA. Electronic correlation has been included with the relatively large basis set 6-311G, augmented with polarization and diffuse functions, to calculate MP2/6-311++G**//RHF/6-31G* single-point energies for all the conformers. Frequency analysis and thermochemical calculations have been performed at the RHF/6-31G* level and the results have been utilized to assess gas-phase populations of conformers at 298 K for the studied molecules. Moreover, SM5.4 solvation model was used to assess Gibbs free energies of conformers both in water and in chloroform. The obtained results are compared to those from previous studies of (R,R)-tartaric acid and its derivatives and analyzed in terms of effects of substitution of the hydroxyl group by the fluorine atom. It seems that substitution of the OH group by an F atom leads to greater conformational diversity of the molecules studied, mainly because the F atom cannot act as a hydrogen bond donor. From our results, it appears that if hydroxyl groups of (R,R)-tartaric acid are involved in intermolecular interactions, like in crystals or polar solvents, then the conformational preferences of these compounds are similar to the conformational preferences of isolated molecules of their dideoxydifluoro analogues

From Cavities to Channels in Host:Guest Complexes of Bridged Trianglamine and Aliphatic Alcohols

We demonstrate that covalently bonded chiral organic hexaamine, rigidified by a methylene bridge, assembles into crystalline inclusion compounds and microporous materials. The inclusion of primary alcohol molecules belonging to the homologous series from ethanol to <i>n</i>-octanol is intrinsic to the triangular molecular shape and columnar stacking of these triangular units. Our studies show that through the choice of differently sized guest molecules (short- or long-chain) we were able to increase the accessible solvent volume from cavities, located inside columnar stacking of triangular units, to one-dimensional undulating channels. While the short-chain molecules occupy voids, the long-chain molecules are included in the channels. By using branched chain solvent during crystallization we were able to isolate dimorphic apohost forms that give rise to two different types of new materials: porous crystals with 1D channels and crystals that possess isolated 0D pockets