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코일과 클립을 선택적으로 적용해서 성공적으로 치료했던 다발성뇌동맥류 1례 : A case report
이덕구,김범태,황선철,임수빈,이세영,신원한 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
The author report a case of multiple cerebral aneurysm successfully treated with an appropricate selection of surgical clipping and coil embolization. A 64 years old female patient was admitted with stuporous consciousness. Initial 3D CT angiography showed diffuse subrarachnoid hemorrhage on the basal cisterns, saccular aneurysms on the terminal basilar artery and right middle cerebral artery(MCA). Converntional angiography confirmed the ruptured aneurysm was basilar one. Coil embolization was perfromed on the basilar aneurysm with 6 Guglielmi detachable coils(GDC) on the 3 days after ictus. Sugical clipping was done on the unruptured right MCA aneurysm on 10 days after ictus without any morbidity. Each treatment modalities can be appropriate indicated for the coiling or clipping aneurysms.
KMT-2017-BLG-0165Lb: A Super-Neptune-mass Planet Orbiting a Sun-like Host Star
Kil Jung, Youn,Gould, Andrew,Zang, Weicheng,Hwang, Kyu-Ha,Ryu, Yoon-Hyun,Han, Cheongho,Yee, Jennifer C.,Albrow, Michael D.,Chung, Sun-Ju,Shin, In-Gu,Shvartzvald, Yossi,Zhu, Wei,Cha, Sang-Mok,Kim, Dong American Astronomical Society 2019 The Astronomical journal Vol.157 No.2
Calculation of the Solvation Free Energy of the Proton in Methanol
Hwang, Sun-Gu,Chung, Doo-Soo Korean Chemical Society 2005 Bulletin of the Korean Chemical Society Vol.26 No.4
The solvation free energy of proton in methanol was calculated by B3LYP flavor of density functional calculations in combination with the Poisson-Boltzmann continuum solvation model. In order to check the adequacy of the computation level, the free energies of clustering in the gas phase were compared with the experimental data. The solvents were taken into account in a hybrid manner, i.e. one to five molecules of methanol were explicitly considered while other solvent molecules were represented with an implicit solvation model.
Hwang, Sun-Gu,Jang, Yun-Hee,Chung, Doo-Soo Korean Chemical Society 2005 Bulletin of the Korean Chemical Society Vol.26 No.4
Bipyridine and its derivatives have been widely used as the ligands in transition metal complexes. The proton affinities of pyridine derivatives were calculated using an ab initio quantum mechanical method (B3LYP with various double zeta and triple zeta basis sets) in combination with the Poisson-Boltzmann continuum solvation model. Van der Waals radii of the atoms in the heterocyclic rings for the solvation energy calculation were set to values determined to reproduce the $pK_a$ values of guanine and oxoguanine derivatives and that of chlorine was optimized to reproduce the experimental values of relating compounds. The $pK_a$ values for the heterocyclic ring compounds were in agreement with the experimental values with a mean unsigned error of 0.45 $pK_a$ units.
The Electronic Structure of Methanethiol Adsorbed on Silver Surface: An Extended Huckel Study
Hwang, Sun-Gu,Jang, Yun-Hee,Kim, Ho-Jing Korean Chemical Society 1991 Bulletin of the Korean Chemical Society Vol.12 No.6
The adsorption of methanethiol on a Ag(100) surface has been studied with Extended Huckel calculation in the cluster approximation of the substrate. Since it has been known that methanethiol is chemisorbed dissociatively on silver surface by rupture of S-H bond, the methanethiolate radical is taken as adsorbate. Of the various adsorption sites, the 4-fold hollow site is preferred. The methanethiolate radical is mainly adsorbed via its 2e orbital. The charge transfer from metal to this level leads to the C-S bond weakening, which is consistent with the red shift of C-S stretching mode in surface enhanced Raman (SER) spectrum.
황선아(Hwang Sun-Ah),김종구(Kim Jong-Gu) 대한토목학회 2009 대한토목학회논문집 D Vol.29 No.4D
현대사회에서 건축물 외피는 단순한 물리적 기능을 넘어 많은 의미를 내포하고 있다. 그 중 외피특성에 의해 생성된 인터페이스 공간은 현대사회에서 많은 의의를 가지게 되었고, 도시의 상징적 공간으로써 역할을 수행하기도 한다. 인터페이스 공간은 두 개의 독립된 공간 사이를 연결해주고, 상태를 활성화 시키는 경계 공간이다. 인터페이스 공간에 의해 사람들은 서로 ‘소통’할 수 있는 기회도 많아지고, 그에 따라 공간적, 기능적으로 단절되었던 도시의 문제점도 해결 할 수 있게 되었다. 하지만 우리나라는 급격한 도시성장으로 인해 이와같은 인터페이스 공간이 잘 형성되지 못했고, 그에 따라 공간적, 시각적으로 이질성이 많이 나타나 도시 공간의 단절 문제가 야기되고 있다. 이에 본 연구에서는 부산시 중구 남포동을 대상으로 도시를 구성하고 있는 가장 큰 요소라고 할 수 있는 건축물의 외피에 의한 인터페이스 공간 특성에 관하여 연구해 보고자 한다. In modem society the architecture surface involves a lot of meaning other than having simple physical functions. The interface space generated by the surface characteristics among those becomes to have many significances in modem society, and plays a role of symbolic space of a city. The interface space is threshold space that connects two separate spaces and revitalize its states. Nowadays, people have many chances to communicate each other through the interface space and also settle urban problems caused by spacial and functional discontinuity through the interface space. However, the interface space in Korea could not be built up well due to rapid growth of cities, and a lot of different natures in space and viewpoint have been appeared accordingly, which gives rise to a problem of the discontinuity of urban spaces. Therefore, this study aims at the research on the characteristics of interface space through architecture surface composing the major factor of a city; architecture integument in Nam-po Dong, Jung Gu, Busan City as the object of the study.