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Reality Modeling for Utility Infrastructure
Bentley Systems Inc 한국BIM학회 2017 KIBIM Magazine Vol.7 No.1
Reality modeling as it applies to electric and gas utility infrastructure has, until recently, largely depended upon LiDAR(Light Detection and Ranging) technology that includes mapping, geospatial and site analysis and the design, operation, and maintenance of critical assets such as substations, networks and transmission towers and lines. Now, software is coming to the fore that transforms photographs into detailed, comprehensive 3D models of all that infrastructure data - and do it in a less labor-intensive, cheaper, and more efficient manner.
Bentley, T. William,Ryu, Zoon Ha 동의대학교 기초과학연구소 1995 基礎科學硏究論文集 Vol.5 No.1
Rate constants and products of solvolyses of p-methoxybenzyl chlorede 1. chlorodiphenylmethane 2 (Y = Z = H), chloro(4-chlorophenyl)phenylmethance 2 (Y = H, Z = Cl) and chlorobis(4-chlorophenyl)methane 2 (Y = Z = Cl) are reported in ethanol- and methanol-water mixtures at 25℃. Product selectivities (S), defined by: S = [ether product][water]/[alcohol product][alcohol solvent] are related to four rate constants for reactions involving one molecule of solvent as nucleophile and another molecule of solvent as general base catalyst (e.g. k_wa involves water as nucleophile and alcohol as general base, and k_ww, k_aw and k_aa are definced similarly). A linear relationship between 1/S and molar ratios of solvent 1/S = (k_wa/k_aw)([alcohol solvent]/[water]) + k_ww/k_aw is derived theoretically and validated experimentally for solvolyses of the above substrates from water up to 70% alcohol-water-in this range of solvents, the contribution from k_aa can be neglected. For solvolyses of p-methoxybenzyl chloride, S is independent of pH between pH 2 and 12, S decreases when acetone is added but increases if acetonitrile is added and for 90% ethanol-water S increases with added LiCl and LiClO₄ and increases further if acetonitrile is also present.
A New Look at Paekche and Korean
Bentley, John R. 서울대학교 어학연구소 2000 語學硏究 Vol.36 No.2
The study of the dead language of Paekche has concentrated mostly on the toponyms recorded in Samkuk saki, and Samkuk yusa. These data are of great importance, but several methodological problems have hampered the study of this language. The present study takes a different angle, and looks at 42 Paekche words preserved in Nihon shoki. Paekche reconstructed forms are posited, and these are compared with Middle Korean, Old Japanese, and Tungusic forms. This paper concludes that the Paekche language is very closely related to the language of Silla (Middle Korean).