Aspects of AdS/BCFT

We expand the results of arXiv:1105.5165, where a holographic description of a conformal field theory defined on a manifold with boundaries (so called BCFT) was proposed, based on AdS/CFT. We construct gravity duals of conformal field theories on strips, balls and also time-dependent boundaries. We show a holographic g-theorem in any dimension. As a special example, we can define a `boundary central charge' in three dimensional conformal field theories and our holographic g-theorem argues that it decreases under RG flows. We also computed holographic one-point functions and confirmed that their scaling property agrees with field theory calculations. Finally, we give an example of string theory embedding of this holography by inserting orientifold 8-planes in AdS(4)xCP(3).Comment: 41 pages, 10 figures; v2: further comments on earlier papers about a holographic dual with boundarie

RESEARCH ON A WATER POLLUTION MECHANISM IN SAGULING RESERVOIR AND ITS MODELING

We have studied about a structure of pollutant load and a mechanism of water pollution in Saguling Reservoir and its catchment area which is located in the western part of Java island, Indonesia. Moreover, a numerical simulation model was constructed in order to suggest some improvement measures for water bodies based on the research. We have obtained the following results: 1) The inflow load was estimated by using a ratio method, and it became clear that the main inflow load was occupied by the industrial load. The estimation indicated it was from 66% to 81% of all inflow loads. 2) We obtain annual water quality data and certain parameters needed for the construction of modeling. 3) The pollution mechanism and estimated the inflow load in Saguling Reservoir become evident according to the result of the field survey. 4) A two-dimensional multi-layer model was constructed. Then, the vertical distribution of DO concentration was calculated. Moreover, the amounts of pollutant load that should be decreased for the improvement of water body was examined by the simulation model.Article信州大学理学部附属諏訪臨湖実験所報告 12: 39-48(2000)departmental bulletin pape

教師はどうありえるのか : 10年間のフィールドワークを踏まえて

井上弥先生・樋口聡先生退職記念特集

Long-term Performance and Community Analysis of Spirodela Polyrrhiza-bacteria Association Treating Phenol-contaminated Water

『大阪大学大学院工学研究科環境・エネルギー工学専攻生物圏環境工学領域 研究活動報告』, (2010.4.1～2011.3.31), pp.83-94, 大阪大学大学院工学研究科環境・エネルギー工学専攻環境資源・材料学講座生物圏環境工学領域, 2011.5 に掲

An Efficient Synthesis of 2'-O-(β-D-Ribofuranosyl)biopterin

N(2)-(N,N-Dimethylaminomethylene)-3-[2-(4-nitrophenyl)ethyl]-1',2'-di-O (trimethylsilyl)biopterin (4) was prepared from biopterin (1a, 86% overall yield) in 5 steps. Glycosylation of 4 with 1,2,3,5-tetra-O-acetyl-β D-ribofuranose (5a) and its 2,3,5-tri-O-benzoyl analog (5b) respectively afforded the corresponding 2'-O-(2,3,5-tri-Oacetyl- and 2,3,5-tri-O-benzoyl-β-D ribofuranosyl)biopterin derivatives (6a, 42% and 6b, 60%) as major products. Removal of the protecting groups of 6b provided 2'-O-(β-D-ribofuranosyl)biopterin (1c, 87% overall yield) in 3 steps