• Korean Chemical Engineering Research
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• 제59권3호
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• pp.467-479
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• 2021

Abstract: A kinetic model was developed for the dehydration of ethanol to ethylene based on two parallel reaction pathways. Kinetic parameters were estimated by fitting experimental data of powder catalysts in a lab-scale test, and the effectiveness factor was determined using data from pellet-type catalysts in bench-scale experiments. The developed model was used to design a multitubular fixed-bed reactor (MTR) and an adiabatic reactor (AR) at a 10 ton per day scale. The two different reactor types resulted in different process configurations: the MTR consumed the ethanol completely and did not produce the reaction intermediate, diethyl ether (DEE), resulting in simple separation trains at the expense of high equipment cost for the reactor, whereas the AR required azeotropic distillation and cryogenic distillation to recycle the unreacted ethanol and to separate the undesired DEE, respectively. Quantitative analysis based on the equipment and annual energy costs showed that, despite high equipment cost of the reactor, the MTR process had the advantages of high productivity and simple separation trains, whereas the use of additional separation trains in the AR process increased both the total equipment cost and the annual energy cost per unit production rate.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.814-820
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• 2009

With the rapid development of China economy, many engineering projects with large scale and investment were constructed in China and some were the biggest ones in the world. With the development of engineering practice, great progress in the research of engineering management of China was made and a large number of research findings were embodied in content of research papers and were represented by technical words. To know the state of arts in the research field of engineering management in China, three major parts, namely title, abstract and keywords of research papers in last five years from three representative Chinese journals about engineering management were chose as research materials. Unlike western languages, there are no delimiters between the words of Chinese, so the maximum matching and frequency statistics (MMFS) method, a text segmentation technique of text mining Chinese, was presented to extract the features consisting of technical words, phrases and words from the research materials. Recent research and developing trend of engineering management in China were found by comparing and analyzing the difference of technical words in the research materials of last five years.

• 아태비즈니스연구
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• 제15권1호
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• pp.305-318
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• 2024

Purpose - The purpose of this study was to conduct a preliminary study to identify key trends on research articles indexed in KCI in relation to tourism in Jeju and sports tourism. Design/methodology/approach - Information regarding research articles focused on Jeju tourism and sports tourism indexed in KCI (145 and 120 articles respectively) were collected and finally abstract written in Korean of 100 and 91 articles on sports tourism and Jeju tourism respectively were chosen for the further analysis after removing redundant articles. R program was used to analyze keyword frequencies, co-occurring terms, and degree/betweeness centrality measures and visualize the keyword network results. Findings - Event, marketing, content, program, implication, service, stadium, and tourism destination have been identified as keywords with highest frequencies among research on sport tourism, whereas tourism destination, image, brand, content, data, Chinese, satisfaction, eco-tourism service, place of arrival were highly appearing terms among research on Jeju tourism. Research implications or Originality - This study highlighted that Jeju has been interlinked with a range of terms such as programs influencing Jeju tourism, natural environment, tourism-related resources (e.g., museums, dramas, etc.), whereas sports has been closely related to sports event and vaiours types of sports (e.g., bicycle, staking, and scuber), but not to Jeju-do.

• 복식문화연구
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• 제9권3호
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• pp.511-522
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• 2001

Various art trends of the 20th century that contributed to the creation and development of abstract art had showed the transition from the convention of mere representation of the object to the formative sensitivity emphasizing self-expression. Noticing that such trends had influenced the fashion industry to move toward a free and individualized style, this study attempts to express the formative way from the existing art to wear, especially, based on early 20th century paintings, 5 casual wears were made which applied korean materials and silhouettes that are functional, sample and show traditional korea beauty. The purpose of this study is to search for a solution to expand the world market by producing dresses utilizing our own tradition that can be distinguished in the global market and that derive inspiration from the formative of the sensitivity of the paintings during the first half of the 20th century. It also aims to let national economy as a high-added industry. The result of this study are as follows: First, the expression method and element of various styles of art such as Fauvism, Expressionism and Cubism, during the period of transition to abstract art, clearly presented the direction toward the artistic liberation and made possible a new formative artistic expression of dress in the early years of the 20th century. Their ideas inspired the dress designers of the time with a reformative and creative sense of fashion and have greatly contributed to the development of a new era of uniqueness and individuality. Second, the color and the simplicity of form of the early 20th century paintings are suitable fro utilizing a motive of functional dresses and express unique and concise modern beauty. Third, it was confirmed that utilizing our tradition in contemporary dress can be a significant method of creation in which the uniqueness and creativity of Korean dress can be expressed, distinguishing it on the global scene, as well as inspire the originality and pride of our culture. Fourth, a possibility has been discovered. It is the functionality and uniqueness of aesthetic expression technique of the contemporary arts that can contribute to the fashion of tomorrow, by searching a modern fashion which was affected by the past and also by taking a look at the trend of modern fashion as the same field as casula wear.

• 미술이론과 현장
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• 제7호
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• pp.7-36
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• 2009

This paper intends to examine the significance of the "Minjoong Misool(People's art)" of the 1980s emerged in Korea in its social, cultural, and art historical context. This paper also aims to provide an analysis of the meaning and form of the individual artist's works, which have been overlooked under the dominant discourse that has emphasized their political role as a collective group. In particular, this paper scrutinizes the work of "Critical Realists" by examining the way in which they perceived Korean society in the early 1980s and visualized their experiences of the period. The figurative art newly emerged in the early 1980s challenged the formalist Modernism, which was adopted into Korea and translated into monochrome paintings and the work of the conversative academicism of the 1970s. The figurative art encouraged a social communication and moreover it intended to criticize the conflicts in the political, economical, and social domains in Korea. The targets of its critique include the unavoidable results of the unprecedented development of economy, various social phenomena of the post-industrial society, and the growth of the commercialized kitsch culture. Along with Shin, Hak-chul's work that incorporates collage technique since the 1980s, the work of some members of "Reality and Utterance" and "Im- sul-nyun" exemplify their critical interests in disclosing the false dream of wealth and happiness by both referring to and drawing on the utopian fantasy manipulated and distributed by mass media and commercial advertisements. This paper pays particular attention to Nouvelle Figuration emerged in France and Europe during the 1960s, which is comparable to the new figurative art emerged in Korea during the 1980s. Nouvelle Figuration criticized the autonomy in art isolated itself from political and social reality after WWII, in particular the indifference of Informel and abstract art as well as American abstract art. Moreover it became rather politicized around May of 1968. Given that French Nouvelle Figuration was introduced in Korea in 1982 and made a significant contribution to the formation of figurative art in Korea, it should be noted that the new figurative art emerged in the 1980s in Korea cannot be categorized merely in relation to People's Art. This paper intends to critically redress the notion that People's art was formed in the particular political, economical, and cultural context of Korea independent of the contemporary artistic practices outside Korea. It will provide a critical examination and analysis of the content and form of the new figurative art, from which People's Art was germinated, in the global context.

• 디지털융복합연구
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• 제10권2호
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• pp.55-61
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• 2012

최근 들어 스마트 폰 사용의 확대로 우리 생활에 큰 변화가 나타나기 시작했다. 본 연구에서는 이러한 스마트기기의 활용으로 나타나고 있는 스마트워크와 일자리 창출을 위한 메커니즘에 대하여 살펴보고 그 발전방안을 찾고자 하였다. 따라서 스마트워크에 대한 명확한 개념적 정의와 IT를 통한 정보의 융합과 산업의 정보화가 가져온 신 시장 개척, 그리고 ICT를 통한 일자리 창출의 해외사례를 분석하였다. 나아가 스마트워크 플레이스하는데 있어서 국민의 문화적인 인식전환이 필요하다. 또한 민 관 협력을 기반한 클러스터 개발이 일자리 창출을 도모할 수 있을 것이다. 더불어 학계-협력업체-서비스업체 등의 상생을 통해 지역경제 발전의 주도적인 역할 수행을 강조하고 있다. 이를 위해 정부적 차원에서 스마트워크에 대한 정책적 지원과 민관이 협력할 필요가 요구된다.

• 아태비즈니스연구
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• 제14권1호
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• pp.265-279
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• 2023

Purpose - The purpose of this paper is to compare and review behavioral economics models that explain stock price changes after large-scale price shocks in the Korean stock market and to find a suitable model. In this paper, among the theories reviewed, it was confirmed that the anchoring heuristics theory has high explanatory power for stock prices after large-scale stock price fluctuations. Design/methodology/approach - This paper conducts an event study on stock price shocks in which the individual stocks that make up the KOSPI200 index show more than 10% fluctuation on a daily basis. In order to materialize the abstract predictions of heuristics theories in a varifiable form, this paper uses the daily stock price index change as a reference point for availability heuristics, and uses the 52-week highest and lowest price as reference point for anchoring heuristics. Research implications or Originality - As a result of the empirical analysis, the stock price reversals did not consistently appear for changes in the daily index. On the other hand, the stock price drifts consistently appeared around the 52-week highest and the 52-week lowest price. And in the multiple regression analysis that controlled for company-specific and event-specific variables, the results that supported the anchoring heuristics were more evident. These results suggest that it is possible to establish an investment strategy using large-scale price change in Korean stock market.

• 한국산학기술학회논문지
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• 제21권6호
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• pp.62-69
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• 2020

본 논문은 지역간 상생 협력과 관련된 인터넷 담론을 살펴보는 연구이다. 대구-경북 지역을 중심으로 하여 상생, 경제, 기업 유치, 문화 관광의 4가지 핵심어 집합을 통해 인터넷 상에 유통되는 담론의 내용을 알아보았다. 또한 유튜브 동영상에 대한 댓글 감성 분석을 실시하여 상생 협력과 관련된 주제들에 대해 인터넷상의 반응이 어떠한지 역시 조사하였다. 그 결과 다음의 세 가지 내용이 확인되었다. 첫째, 상생과 관련된 인터넷 담론은 단순히 '지원'과 같은 추상적 개념으로부터 구체적인 협력 방안과 정책적 내용으로 진화되어 나갔다. 둘째, 상생을 위한 지역의 실행 방안이 외부 도움이나 지원을 유치하는데 그치지 않고 자생적인 발전 동력을 키우는 방향으로 이동하여 갔다. 마지막으로, 유튜브 감성 분석 결과는 지역간 상생 협력 노력이 구체적인 정책 내용으로 연결되면서 홍보될 경우, 시민들에게 공감을 얻으며 긍정적인 정책 추진력으로 연결될 수 있다는 사실을 보여주었다. 본 연구 결과는 인터넷 담론 연구가 상생이나 실질적인 지역간 협력 등과 관련된 정책에 관한 방향성을 탐구하는데 매우 유용하다는 점을 보여주고 있다. 또한 본 연구는 담론을 생산하는 이해관계자가 추상적인 개념이 아닌 구체적인 정책 내용을 시민들에게 밝히는 것이 긍정적 반응을 이끌어낸다는 점을 보여준다.

• 지식경영연구
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• 제23권3호
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• pp.129-152
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• 2022

디지털 전환의 핵심 인프라로서 데이터·네트워크·인공지능(D.N.A.) 분야의 확산과 유망 산업의 등장은 경제 전반에 걸쳐 활발한 디지털 혁신의 기반이 되고 있다. 본 연구에서는 텍스트마이닝 방법론을 적용하여 WoS 데이터베이스의 SCIE 급 색인에 해당하는 연구의 초록, 출판연도 및 연구분야를 입력변수로 활용하여 주요 토픽을 도출하였다. 우선, 단어 출현 빈도에 기반한 TF 및 TF-IDF 분석을 통해 주요 키워드를 확인하고, 이어서 g-DMR(Generalized Dirichlet-Multinomial Regression)을 이용하여 토픽 모델링을 수행하였는데, 다양한 형태의 변수를 메타정보로 활용 가능한 해당 토픽 모형의 이점으로 단순하게 토픽을 도출하는 것 이상의 의미를 적절하게 탐색할 수 있었다. 분석 결과에 따르면, 비즈니스 인텔리전스, 제조 생산 시스템, 서비스 가치 창출, 원격 진료, 디지털 교육 등의 토픽들이 디지털 전환에서 주요 연구주제인 것으로 식별되었다. 토픽 모델링의 결과를 요약하자면, 1) COVID-19 이후 비즈니스 인텔리전스를 주제로 하는 연구가 전 영역에서 활발하게 수행되고 있으며, 2) 제조 분야에서 지능형 제조 솔루션 및 메타버스 등의 이슈가 등장함에 따라 제조 생산 시스템에 관한 주제가 다시 한번 주목받고 있음을 확인하였다. 마지막으로, 3) 주제어 자체는 기술과 서비스의 측면에서 분리하여 볼 수 있지만, 다수의 연구에서 해당 기술들을 접목하여 적용된 다양한 서비스를 포괄적으로 다루고 있으므로 이를 별개로 해석하는 것이 바람직하지 못하다는 점을 알 수 있었다.

• 한국엔터테인먼트산업학회논문지
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• 제13권8호
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• pp.117-130
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• 2019

마르크스 이후 인간 노동을 둘러싼 담론들의 대부분은 자본과 생산수단으로부터 노동소외와 정의로운 분배였다. 4차 산업혁명과 인공지능 발달은 인간 노동이 원초적으로 필요치 않고 인간(성)과 배타적이고 독립된 생산·경제 시스템의 가능성을 열어 놓았다. 로봇·인공지능 활용이 일반화되며 지능과 의식이 분리가 빠르게 현실화 되면 생명을 가진 것, 그렇지 않은 것의 차이와 경계는 분명해 질 것이다. 포스트 휴먼 시대 전 단계인 지금, 생명과 그 가능성 그리고 새로운 사회관계, 공동체에 대한 관심과 탐구는 증대되리라 예상할 수 있다. 최근 문화적 현상으로 소집단, 자급자족, 일상성과 몸과 음식에 대한 관심이 늘어나고 있는 현상도 이러한 맥락에서 이해될 수 있다. 이런 현상을 나타내는 대표적인 것이 미니멀 라이프(minimal life)를 지향하는 킨포크(Kinfolk) 문화다. 국내외에서 워라벨(work-life balance)이나 오캄(au calme), 휘게(hygge), 소확행(일상에서 작지만 진정한 행복)이라는 문화 키워드도 나타나고 있다. 이어령이 주장한 '생명자본주의'는 계급투쟁과 갈등에서 역사발전의 동력을 찾는 것이 아니라 생명이 가진 기본적 특성 토포필리아(topophilia), 네오필리아(neophilia), 바이오필리아(biophilia)에 주목해야 한다는 것이다. 그는 생명가치에 대한 담론 또한 추상적, 윤리적 관점에서 포스트휴먼 시대 이후 생산과 사회관계를 규명하는 새로운 방법론으로 간주해야 한다고 주장한다. 들뢰즈(G. Deleuze)는"예술은 존재론적 철학의 또 다른 표현방식이며 철학에 생기를 부여하고 추상적 개념을 구체적 이미지로 재현하는 역할을 한다"고 주장했다. 문화예술의 상상력이 과학적 예측의 한계를 극복하는 예는 흔히 볼 수 있다. 이 논문에서는 최근 주목을 반도 있는 '생명자본주의'의 개념과 이슈를 정리하고 '미니멀 라이프'를 지향하는 영화 <리틀 포레스트(Little Forest)>에서 생명자본주의의 맹아적 개념들이 어떻게 영상을 통해 표현되었는지 탐색한다.