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Dinitrobenzomorpholines의 새로운 環組織과 그의 合成
박은옥 梨花女子大學校 藥學硏究所 1962 梨花藥學硏究 Vol.- No.3
알파-Carbon에 달린 많은 기를 갖인 베타-Amino Alcohol류의 Picamides(Ib, Ic에 관계되는 화합물)는 많은 염기와 반응하여 환폐쇠 되며 치환된 Benzomorpholines(II)을 성공한다. 5위치에 있는 Nitro기는 Amine으로 치환되어(III) 새로운 환조직(IV), Triazolobenzomorpholines을 합성한다. Amino Alcohol류의 Sulfonate Esters를 합성하기 위해 Cope와 Burg의 방법을 이용하여 2-Amino-2-Methyl-r-propanol의 Picryl Ether을 합성할때(1) 반응결과로써 아질산의 원소들을 상실하게 된다.(2)
Antonio Pena-Garcia,Francisco Pérez-Ocón,José Ramón Jiménez 한국광학회 2011 Current Optics and Photonics Vol.15 No.2
After the successful extension of the rotating planar waveguide model to Wave Optics, where a clear identification between the angular velocity of one hypothetical waveguide and the phase differences between two points on the path of one bounded mode was found, an application of the model to explain the interference theory is presented. We demonstrate that, for two bounded modes to create an interference pattern, a constrain to the relative parameters among both is imposed by the fiber optics. This result, not reported in the literature up to date, provides a new horizon to understand the interaction light-light when propagated within optical fibers.
( Oc Hee Han ),( Suk Bong Hong ) 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0
Even for the aluminosilicate zeolites with the same framework structure and composition, the location of catalytically active sites can differ according to the manner in which AI atoms are spatially distributed over the available tetrahedral sites in a given zeolite lattice. Thus, detailed knowledge concerning the local order of AI in these nanoporous materials is the starting point for systematically manipulating the distribution of acidic sites within their pore architecture.Results from the <sub>27</sub>AI MAS and MQMAS NMR measurements on a series of as-made ZSM-5 zeolites with 0.3 - 6.4 AI atoms per unit cell (Si/AI = 250 -14) provide the first direct evidence that the substitution of AI atoms over the 12 distinct tetrahedral sites (T-sites) in this particular structure type of zeolites during their crystallization process occurs in a non-random manner. Our detection methods are expected to be applied to other partially substituted samples also.
Solid State NMR Study of PAZO-6 and Related Materials
Han, Oc Hee,Jin, Jung-Il,Kim, Jong-Sung,Yoon, Yong-Kook,Huh, Sung-Mu 한국분석과학회 1995 분석과학 Vol.8 No.4
PAZO-6 is a new combined type liquid crystalline polymers (LCP) which has two types of mesogens combined non linearly. Ordering of branch mesogen azo group, in PAZO-6 is an important parameter to observe as well as the substitution effect on the backbone. The related small molecules sllch as monomers as well as the polymer itself are studied by solid state NMR techniques. Preliminary $^{13}C$ CP/MAS (cross polarization/ magic angle spinning) spectral results suggest that the azo groups in the monomers are not aligned with themselves. Azo groups in the monomers seem to be poorly ordered between well ordered p-phenylene terephthalate moeities. Similar disordering tendency of the azo group in PAZO-6 is deduced from the overall aromatic carbon peak positions which are not much different from those of the monomer.