TiN 박막 제조를 위한 PECVD 공정의 모사화 연구

안경환,설용건,김선효 ( Kyung Han Ahn,Yong Gun Shul,Seon Hyo Kim ) 한국화학공학회 1993 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.31 No.4

Deposition rates for TiN films starting from the mixture of TiCl₄/N₂/H₂/Ar in PECVD(Plasma Enhanced Chemical Vapor Deposition) reactor were simulated with 1-dimensional radial dispersion model and these results were compared with the experimental results. Plasma dissociative reaction parameters were expressive of a function of R.F. power only, and TiN deposition rates on Si wafer were estimated by assuming a Langmuir-Hinshelwood-Hougen-Watson(L.H.H.W.) mechanism. In considering the reaction mechanisms, surface reactions starting from TiCl₃ or TiCl₂ were evaluated, respectively. Calculated TiN deposition rates agreed with the experimental results for the changes of temperature, and low range R.F. power, but some discrepancy was found for the changes of H₂/N₂ ratio and high range R.F. power.

모바일 플랫폼의 에듀게임 콘텐츠 품질향상을 위한 효율성 분석

안경환,황명철,Ahn, Kyung-Whan,Hwang, Myung-Cheol 한국전자통신학회 2009 한국전자통신학회 논문지 Vol.4 No.2

오늘날 게임은 멀티미디어 등의 복합적 문화기술 산업으로 고부가가치 콘텐츠 핵심 산업으로서 큰 영향력을 갖게 되었다. 모바일 웹2.0 사용자들은 이제 콘텐츠의 선택은 잘 만든 콘텐츠를 선택할 것이며 이것은 Wibro, HSDPA 등의 모바일 플랫폼의 기술발전과 연관되어 더욱 강해지고 있다. 이에 대하여 한국 게임 산업 진흥원은 2006년부터 기능성 게임 공모전을 시작하여 에듀 게임에 대한 사회적 인식변화의 필요성을 높이고 있다. 현재 에듀게임의 투자효과는 게임 산업의 규모, 성과 및 투명성에 비하여 상대적으로 낮게 평가받고 있으나, 타 산업에 비하여 창출되는 부가가치의 효과가 매우 높다. 본 연구는 에듀게임 콘텐츠의 품질향상을 위한 효율성 분석을 통하여 에듀게임 투자에 대한 정책적 제안을 모색해 보고자 한다. Today, as a core industry of high value added contents, the field of game received great influences as a complex cultural technical industry of multimedia and such. Users of Mobile Web2.0 will now choose the well-made contents and this has become stronger in relation to the technical advancements of mobile platforms such as the Wibro and HSDPA. Accordingly since the year 2006, the Korea Game Industry Agency has begun a public subscription for functional games to elevate the necessity of changes in social recognition for edu-games. Although the current investment effects of edu-games are being valued relatively low in comparison to the scale, outcome and the transparency of the game industry, the created effects of the value added is very high when compared to other industries. The purpose of this study is placed in the political propositions for the edu-game investments necessary in the quality expansions of edu-game contents.

주택재개발사업 기획단계에서 이용 가능한 수익성 예측 모델

안경환,박종순,이종식,권대중,전재열,Ahn, Kyung-Hwan,Park, Jong-Soon,Lee, Jong-Sik,Kwon, Dae-Jung,Chun, Jae-Youl 한국건설관리학회 2013 한국건설관리학회 논문집 Vol.14 No.1

주택재개발사업에서 수익성 예측은 성공적인 사업의 수행을 위한 중요한 요소이기 때문에 수익성 예측을 소홀히 할 경우 많은 그에 따른 리스크가 커지게 된다. 그러나 현행 주택재개발사업은 사업이 많이 진행된 시점에서 수익성을 분석하기 때문에, 수익성이 없는 것으로 판단될 경우 그에 따른 큰 손실을 감수해야 한다. 이로 인해 현재 사업이 중단되거나 지연됨에 따라 경제적인 손실을 보는 사업장이 늘어나고 있으며, 그에 따른 이해관계자간 갈등이 심화되고 있다. 주택재개발사업 시 이러한 사회적 갈등과 경제적 손실을 줄이기 위해서는 사업추진여부를 결정하기 위한 적절한 수익성 예측 방법의 개발이 필요하며, 더불어 적절한 시기에 적용할 수 있는 프로세스의 제시가 요구된다. 본 연구는 사업 초기단계인 기획단계에서 수익성을 예측할 수 있는 방법을 제시하여, 합리적이고 타당한 의사결정의 지원을 위한 것으로 본 연구모델의 적용 시 사업 초기단계에 사업 수행 여부의 결정이 가능하도록 하여, 부적절한 사업의 무리한 진행으로 인한 경제적인 손실과 그에 따른 이해관계자간의 갈등을 줄일 수 있을 것으로 판단된다. A judgment on the redevelopment projects' predicted profitability is an essential decision-making element for the success of the redevelopment projects. It is necessary to review the literature on profitability of redevelopment project and draw risk factors that could affect profitability through the risk analysis based on surveys. It is also necessary to judge profitability prediction toward the business value of the redevelopment project in the planning phase according to the risk analysis results which can affect the profitability prediction. In order to prevent the growing difficulties in executing the projects, a profitability prediction model is proposed using the method of management and disposal based on a proportional calculation that can estimate the share of expenses in order to judge profitability in the planning phase. With the improvement of profitability prediction models, it is possible to appropriately judge profitability in the planning phase in order to allow the prevention of suspension, reduction of project term, reduction of cost, and making of rational decisions.

공동주택단지 내 주민교육시설의 건축적 고려사항에 관한 연구

안경환,Ahn, Kyung-Hwan 한국교육녹색환경연구원 2012 교육·녹색환경연구 Vol.11 No.2

The trend toward more welfare living because of more leisure time has influenced the popularity of the community facilities in apartment housing. According to the residents' increasing interests for well-being life the changes and developments of the community facilities have been required in these days. The purpose of this research is to study these required changes and developments by analyzing the resident's using behavior of community facilities in apartment housing focusing on the educational and cultural facilities. For this purpose, this research intends to examine the existing conditions and problems of educational and cultural community facilities in apartment housing and to analyze the residents' using patterns such as frequency, preference and satisfaction and to comprehend the additional needs and requirements of the residents. The conclusions and suggestions of this research can be a basic data for the architects to design a resident-oriented educational and cultural community facilities.

Korean Adult Learners` Perception and Attitude toward English as a World Language

안경환 ( Kyong Hwan Ahn ),이자벨 ( Isabel Lee ) 21세기영어영문학회 2013 영어영문학21 Vol.26 No.4

The purpose of this study is to examine Korean adult learners` understanding about English as a world language and their attitudes towards English variation. As the world has become globalized, English is being used in many parts of the world as a tool of communication. In this context, the present study is aimed at investigating how Korean adults learners of English as a foreign language (EFL) understand English as a world language. The data for this study were collected from 176 Korean EFL adults learners in Gwangju and analyzed by SPSS Window 14.0 Version. A survey questionnaire was used to examine the perception and attitudes of adults learners. This findings suggest that English instructors should introduce the World English perspectives and help their students to be exposed to the varieties of English in their classes in order to raise students` awareness of these varieties and to enhance their self-confidence.

21세기 법학교육과 법학전문대학원

안경환 ( Kyong Whan Ahn ) 서울대학교 법학연구소 2004 서울대학교 法學 Vol.45 No.2

백로류 집단번식지의 식물사회 특성

안경환 ( Kyunghwan Ahn ),임정철 ( Jeongcheol Lim ),한창욱 ( Changuk Han ),이윤경 ( Yunkoung Lee ),조항수 ( Hangsoo Cho ),서재화 ( Jaehwa Suh ),서민환 ( Minhwan Suh ),신영규 ( Youngkyu Shin ),김명진 ( Myungjin Kim ) 한국환경영향평가학회 2015 환경영향평가 Vol.24 No.5

The purpose of this study was to understand phytosociological characteristics and changes, providing basic ecology informations based for heronries. We investigated the 25 heronries sites to have more than a hundred nests in the country. The vegetations of heronries were arranged 8 plant communities that consisted of 60 families, 129 genuses and 167 species including 17 species of exotic species. The communities of heronries were composed of high NCD (Net Contribution Degree) of plants, such as pokeberry (Phytolacca americana), japanese chaff flower (Achyranthes japonica), asiatic dayflower (Commelina communis) including diagnosis species, that was heliophilous and tolerance of eutrophic and/or acidic soil condition, and had the highest composition with the annual plants. As locational condition, they were distributed a favorite feeding place (rice field, stream etc.) inside 0.5 km radius, and located on the eastern slope of the mountain. The vegetative composition among plants in the heronries didn’t have plant sociological characteristics for environmental conditions of the sites. But generally, they had trends in floristic composition like the areas of polluted soil, open canopy and disturbance.

미국헌법사상과 한국의 헌법개혁

安京煥(Ahn Kyong-Whan) 한국헌법학회 2006 憲法學硏究 Vol.12 No.3

디지털 미디어의 상호작용 WOM 마케팅 효과에 관한 연구

안경환(Kyung-Whan Ahn),곽봉철(Bong-Chul Kwak) 한국컴퓨터정보학회 2007 韓國컴퓨터情報學會論文誌 Vol.12 No.2

본 논문은 디지털 미디어 컨버젼스화에 따라 마케팅의 형태도 진화되고 있으며, 현대 소비자의 형태 또한 ‘개인화’(individualization)로 미디어 환경에 따라 급속히 변화하는 환경에서 소비자에 대한 개별적 수요에 부응하는 ‘맞춤성’ 마케팅 여부가 디지털 미디어 시대의 마케팅의 새로운 전략임을 제시하고자 하였다. ‘고객의 마음’을 사로잡을 수 있는 최고의 마케팅은 시장에 처음 진입한 브랜드가 아니라, 고객의 마음속에 처음으로 자리잡는 브랜드이다. 차별화된 상호작용적, 마케팅 전략을 갖추면 완전히 새로운 시장 공간을 공략할 수 있으며, 수년간에 걸쳐서 수익을 창출할 수 있다. 따라서 디지털 마케팅 효과의 측면에서는 첫 번째로 소비자·생산자의 상호작용(interaction)과 관련된 개념과, 두 번째는 개인의 감정이입(Empathy) 마케팅으로, 상품 너머의 브랜드 이미지를 통한 감성마케팅이며, 세 번째는 디지털 미디어를 통한 구전 마케팅에 대하여 연구하였다. This thesis suggested that the 'customized' marketing would be a new strategy in terms of a marketing in the digital media age under the circumstances where a form of marketing was evolving in accordance with the convergence of digital media. Because of the media environment due to an 'individualization', the strategy would meet an individual demand of a consumer in a rapidly changing environment. The best marketing to capture a ‘customer's heart’ is not a brand that first entered the market, but the one that is first settled in a customer's heart. If a differentiated interactive marketing strategy is equipped, it is possible to capture a completely new market space ad create a profit over several years. In the aspect of an effect of a digital marketing, first, a concept relating to an interaction between a consumer and a producer is important. Secondly, the important one is an empathy marketing which is an emotional marketing through a brand image beyond a product. Thirdly, the author studied an orally transmitted marketing effect through digital media.

베트남 서남부 짬 족의 이슬람

안경환 ( Kyong Hwan Ahn ),송경근 ( Kyung Keun Song ) 한국이슬람학회 2009 한국이슬람학회논총 Vol.19 No.2

Islam in southwestern Vietnam was spread by Cham Ethnic, which is one of 54 races in Vietnam. Geographically, Vietnam is located in the intersecting points between western, eastern, northeastern and southeastern cultures. For the Cham race`s origin in Vietnam, there are many theories. According to the Cham race`s distinctive features, they originated from Indonesia, basically. Based on this origin, western and northern Indian elements were also racially intermixed in this culture, together with a Mongolian cultural influence. According to the historical records, the Chiem Thanh Kingdom, originating from the Lam Ap Kingdom, formed in A.D 192, was once called the Hoan Vuong Kingdom. It appeared after the 9 century, in the middle part of Vietnam. This kingdom underwent a lot of changes and struggles against the Chan Lap Kingdom (Cambodia), the Vietnamese Ly Dynasty and the Le Dynasty. Finally, Chiem Thanh was setback to southeastern Vietnam by the southern expansion policy of the Vietnamese Dynasty. Thus, we need to study Cham ethnic in order to understand Islam in Vietnam. In Vietnam, Islam is not popular because Islamic doctrines are not easily accepted by Vietnamese, who are greatly influenced by Confucianism, stemming from Chinese colonial rule during the 11 century. In addition, the Cham ethnic group is a minority group. Furthermore, the Vietnamese Government will not allow religious freedom and free contact with Islamic countries, after communization of Vietnam on Apr. 30, 1975. Islam in Vietnam is a little bit different from other Islamic countries, which were influenced by frequent political changes and existing traditional Vietnamese culture. In the future, Islamic religious influence in Vietnam will probably not be strong, unless Islam manages to break down Confucianism barriers, Cham ethnic`s limitation, and other cultural obstacles.