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Stability of the Zwitterionic form of 4-aminopyrimidine HCl and -HBr Complexes: Computational Study
황태규,박성우,윤영삼,이성렬,Hwang, Tae-Kyu,Park, Sung-Woo,Yoon, Young-Sam,Lee, Sung-Yul Korean Chemical Society 2009 대한화학회지 Vol.53 No.2
4-아미노피리딘 (4AP)?HCl와 ?HBr 복합체에 대한 양자화학적 계산을 수행하였다. 전하분리된 (즈비 터이온) 형태의 [4AP$H^+-Cl^-$]는 안정하지 않으나, [4AP$H^+-Br^-$]은 안정하여 저온기체상에서 관찰될 것으로 예측되었다. 이것은 HCl에 비하여 HBr의 해리에너지가 작다는 사실과, 4AP의 아미노기가 HBr의 “용매”로 작용 한 결과로 해석되었다. We present calculations for the 4-aminopyrimidine (4AP) ? HCl and ?HBr complexes. We predict that the charge separated (zwitterionic) form [4AP$H^+-Cl^-$] is not stable, but that [4AP$H^+-Br^-$] is stable enough for experimental detection in gas phase at low temperatures. The latter observation is attributed to smaller dissociation energy of HBr compared with HCl, and to “solvation” of HBr by the amino group in 4AP.
관광벤처기업 창업경험에 대한 현상학적 연구 - HANBOKNAM을 사례로 -
황태규,허문경 한양대학교 관광연구소 2019 觀光硏究論叢 Vol.31 No.2
This study was designed based on the case of successful tourism venture, ‘HANBOKNAM’. ‘HANBOKNAM’. This venture introduced a new cultural phenomenon involving tourists borrowing and trying on traditional Korean clothes (hanbok) at cultural heritage sites. Based on the above background, this study aims to find out the specific meaning and nature of entrepreneurial experience of tourism ventures. In order to achieve the study objective, we had an in-depth interview with the representative of ‘HANBOKNAM’. The materials follow Lee, Nam-In’s analysis procedure(2014), which was presented by incorporating Giorgi’s descriptive phenomenological method(1975, 1985). The study result was then divided into 48 sense groups and had gone through 18 steps of procedures of integrating sense groups. As a result, 5 essential structures were found, which are ‘effort for launching a new business’, ‘market competition’, ‘difficulties’, ‘entrepreneurship’ and ‘learning system and interaction’. 본 연구는 성공적인 관광벤처 기업인 ‘HANBOKNAM(한복남)’을 사례로연구하였다. ‘HANBOKNAM’은 국내 최초로 문화유산 관광지에서 한복대여업을 시작하여 관광지에서의 전통의상체험이라는 새로운 문화현상을 불러일으킨 점에서 주목할만하다. 이러한 배경에서 본 연구는 관광벤처기업 창업의 경험에 대한 구체적인 의미와본질을 드러내는 것을 연구목적으로 한다. 이를 위해 관광벤처기업 ‘HANBOKNAM’의대표를 심층 인터뷰하였다. 심층인터뷰 자료는 Giorgi(1975, 1985)의 기술적 현상학 연구방법을 통합하여 제시한 이남인(2014)의 분석절차를 따랐다. 연구결과를 48개 의미단위로 나누고, 이를 바탕으로 18개 의미단위통합의 과정을 거친 후, ‘사업론칭 노력’, ‘시장에서의 경쟁’, ‘난관’, ‘기업가정신’, ‘학습체계와 상호작용’ 등 5개의 의미단위 본질구조를 밝혔다.
황태규,김정윤,김재필 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
Four perylene-based dyes containing methoxy groups were synthesized for be used as colorants of liquid crystal display (LCD) color filters. The synthesized dyes each have 0, 2, or 4 methoxy groups at bay- and terminal- positions. The fluorescence of synthesized dyes decreased as the number of methoxy groups increased. Dye-based color filters were fabricated using the synthesized dyes in low color content concentration to minimize the effect of the aggregation. The minimum brightness of the fabricated color filters also decreased with the increasing number of methoxy groups. In conclusion, the minimum brightness can be increased by the fluorescence of the dye, however, the dyes showing strong fluorescence are not acceptable for use as colorants in high-contrast LCD color filters.
도시브랜드 구성요소가 도시브랜드 개성과 자산가치에 미치는 영향에 관한 연구
황태규,송철호 동북아관광학회 2011 동북아관광연구 Vol.7 No.2
이 연구는 도시브랜드 구성요소가 도시브랜드 개성 및 자산가치에 영향을 얼마나 다르게 미치는지 탐색적으로 살피는 것이다. 연구진행을 위해 가장 먼저 도시브랜드 구성요소에 대해 기존이론을 정리하였으며, 다음으로 도시브랜드 개성에 대한 새로운 차원을 정리하였으며, 마지막으로 설문조사를 통한 실증분석을 진행하였다. 분석결과, 도시브랜드 구성요소와 브랜드 개성 및 자산가치는 밀접한 관계가 있는 것으로 나타났다. 특히 이 연구는 도시를 경영함에 있어서 브랜드적인 관점에 대한 기초자료가 될 수 있고, 각 도시는 매력적인 도시브랜드 개성 요소를 파악하여 경쟁력 있는 부분에 더욱 역량을 집중함으로써 타 도시와의 차별화 전략을 전개, 도시경쟁력 강화에 기여할 수 있을 것이다.
도시마케팅 유형이 시민 참여의도에 미치는 영향에 관한 연구- 운영주체 결합방식의 조절적 역할 -
황태규 한국상품학회 2004 商品學硏究 Vol.0 No.31
The city marketing in Korea has been driven by the local government. The budget disuse with display-oriented administration and bureaucracy make citizens mistrust about local government. Nowadays the local government established the department of marketing but is worried about the lack of participation. This article is to study on the study influence of city marketing type on participation intention: the moderating role of combination way in operation subjects. The results show that the type of public-oriented marketing is superior to the type of entertainment-oriented marketing in regard to citizen participation. Also, the participation intention of the partnership with local government and private sector is higher than the local government or a private sector alone. The fact finds that the entertainment-oriented marketing is even more effective in the partnership with local government and private sector.
황태규,도덕희 대한설비공학회 2005 설비공학 논문집 Vol.17 No.12
A panoramic-PIV system has been constructed for the analysis of the airflows in a room. Smoke is used as seeding particles and are visualized by a pulsed laser(Nd-Yag, 120mJ). Panoramic images have been obtained by an image composition process using the two images obtained by the two cameras(1k×1k) that are viewing the wide measurement areas. Velocity vector fields have been obtained by the grey-level cross-correlation PIV method. Three room models(L×W×H[mm3], 500×500×250, 350×350×175, 250×250×125) have been tested. The experimental results have proven that the constructed panoramic-PIV system can be used as a useful tool for analyzing the airflow characteristics in the room models.
고해상 3차원 입자영상유속계 개발과 구 유동장 정밀해석 적용연구
황태규,도덕희 대한설비공학회 2005 설비공학 논문집 Vol.17 No.12
A Multi-Sectional 3D-PTV algorithm was developed to reduce the calculation time of the conventional GA-3D-PTV. The hardware system of the constructed 3D-PTVsystem consists of two high-speed cameras(1,024×1,018pixels, 60fps), a metal halogen lamp (400W) and a host computer. The sphere(30mm) is suspended in a circulating water channel(300mm×300mm×1,200mm) and Reynolds number is 1,130. About 5,000 instantaneous three-dimensional velocity vectors have been obtained by the constructed 3D-PTV system. Turbulent properties such as turbulent intensity, Reynolds stress and turbulent kinetic energy were obtained. An eigenvalue analysis was carried out using the obtained instantaneous 3D velocity vectors to get the topological relations of the asymptotically stable critical point. Two structured shells, inner shell and outer shell, were found in the sphere wake and their motions were clarified by the measured data.