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수소전기차 이온교환필터의 고품분석기법 개발 과 내구 열화 메커니즘 규명 및 디지털 트윈기술 적용을 통한 통계적 교차 검증
장욱일(Uk Il Jang),김자원(Ja Won Kim),신광수(Gwang Su Shin),김수환(Su Hwan Kim),이진헌(Jin Heon Lee),김태균(Tae Gyun Kim),이홍기(Hong Ki Lee) 한국자동차공학회 2023 한국자동차공학회 부문종합 학술대회 Vol.2023 No.5
The ion exchange filter applied to the hydrogen electric vehicle cooling system requires periodic exchange. Frequent and unpredictable exchange of items causes maintenance costs and inconvenience to consumers, and weakens marketability to manufacturers. By developing the technology for analyzing removed parts of the ion exchange filter, the main cause of exhausted is identified and reduction measures are established. And the principle of an unusual acceleration phenomenon in vehicle environment is identified and design concepts are proposed to improve. A method to alleviate the acceleration phenomenon was verified through experiments. In addition, to statistical cross-validation the driving data of customers collected in servers were classified into two groups. The characteristics of group 1 (rapid replacement) and group 2 (normal replacement) were compared with the experimental results performed.
이장욱(Lee Jang-Wook),김억(Kim Uk) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(계획계)
In This study has researched to draw up plans applicable to an exhibition space after analyzing the interrelation between the emotional design and an experience since people have recognized the importance of an experience as the factors for the development of man's creative thought. There are many factors for building up the creative cultural city; however, this study particularly limited the range to the exhibition facilities which can be experienced as cultural facilities. First of all, we presented the theoretical base data by the research of papers about the importance of an experience and the empirical design and then considered the theory of the emotional design as a construction space as the method of the study. As the result of this study, the characteristics of the experiential exhibition space applied the emotional design was found out. At first, it stimulates the emotions of people in experiencing the various senses by the interaction between a human and a space. Secondly, the interaction with digital technology provides the emotional experiences which couldn't be experienced in the real world by transcending time-space. Lastly, the interactive action makes people build up new images and think creatively about a space providing various experiences. In conclusion, it needs to proceed in the consideration about the interaction between the exhibition experience for space and people.
이장욱,권정노,김태익,양원석,LEE Jang-Uk,KWON Jung-No,KIM Tae-Ik,YANG Weon-Suk 한국수산과학회 1994 한국수산과학회지 Vol.27 No.2
대서양 남빙양 새우의 주된 분포역은 South George Island, Laurie/Coronation Islands와 Livingston/King George Islands 지역으로 공간적인 구분을 뚜렷이 하였다. 어획 수심은 층에서 150 m층까지 달했고, 10 m층으로 구분한 단위노력당어획량의 수직 분포는 층간에 큰 차이가 없었으나 수심이 깊어 질수록 낮아지는 경향을 보였다. 수온과 단위노력당 어획량의 관계로 부터 남빙양 새우는 주로 $0.8{\sim}l.0^{\circ}C$ 범위에서 높은 밀도를 나타내었다. 남빙양 새우의 암수별 체장 조성은 큰 차이를 보여 숫컷의 비율은 작은 체장에서, 암컷의 비율은 큰 체장에서 각각 높았다. 두흉갑장과 체장관계, 체장과 체중관계가 암수별로 추정되었다. 암수별 성비조성은 숫컷이 $60.3\%$, 암컷이 $39.7\%$로서 유의한 차이를 나타내었다. Spatial distribution patterns of Antarctic krill, Euphausia superba in the Atlantic Ocean sector were seasonally divided into three or four regions; South George Island, Laurie/Coronation Islands and Livingston/King George Islands. Antarctic krill were caught from the surface to about 150 m in depth. The vertical distribution of catch per hour (CPUE) did not show much differences between the 10 m layers, but there were gradually poorer CPUEs as trawl depth increased. It was estimated from relationship between water temperature and CPUE that the Antarctic krill abundance was maximal at water temperatures of $0.8{\sim}1.0^{\circ}C$. The length compositions of Antarctic krill showed that female fish were, on an average, significantly larger than males. Relationship between carapace length and body length, and body length-body weight relationship were well fitted. Sex ratio was $60.3\%$ for male and $39.7\%$ for female with significant difference at the $5\%$ level.
복지국가의 경제적 쟁점과 한국 복지국가의 과제에 관한 소고
이장욱 ( Jang-uk Lee ) 극동대학교 사회복지연구소 2017 글로벌사회복지연구 Vol.7 No.2
이 글은 복지국가를 둘러싼 경제적 쟁점을 살펴보고, 이를 통해 한국 복지국가의 나아갈 바를 점검해 보는 데 그 목적이 있다. 탐색적 연구의 성격을 갖는 이 글은 크게 네 부분으로 구성된다. 첫째, 도입부에서는 제도적 복지국가의 정당성을 논의하기 위하여 복지국가는 무엇을 위해 존재하는지, 그리고 왜 존재하는지를 다룬다. 둘째, 제도적 복지국가를 공격하는 데 선봉에 서는 공급중심 경제학의 주요 주장을 다룬다. 예를 들면 복지국가가 산업생산 부문의 위축, 노동력의 공급 감소, 그리고 저축감소 및 투자감소를 야기한다는 그들의 주장을 살펴본다. 셋째, 제도적 복지국가가 경제의 발목을 잡는다는 공급중심 경제학의 주장이 과연 온당한 것인지를 다룬다. 이 논문에서는 사회복지지출이 국가경제를 저해한다는 주장의 실증적 증거가 미약하다는 점과, 서구 복지국가의 경제실패가 복지프로그램이 아니라 정치적 문제에서 비롯되었음을 주장한다. 넷째, 결론을 대신하여 한국 복지국가가 제도적 복지국가로 나아가기 위해선 현실적으로 어떤 과제를 풀어야 하는지 언급한다. The purpose of this article is to examine the economic issues of the welfare states, and to search for the tasks of the Korean welfare state. This article, which has the nature of exploratory research, consists of four parts. First, the introduction addresses what the welfare states exists for, and why they exist to discuss the legitimacy of the institutional welfare state. Second, it deals with the main claims of supply-side economics that attack the institutional welfare state. The claims of supply-side economics - for example, welfare states are shrinking industrial production, reducing labor supply, and reducing savings and investment - are reviewed. Third, it deals with whether supply-side economics claims that the institutional welfare state has an adverse effect on the economy is correct. In this article, it is argued that there is little empirical evidence for the claim, that social welfare spending hinders the national economy, and that the economic failure of the Western welfare states came from political problems, not welfare programs. Fourth, in order to make the Korean welfare state as an institutional welfare state, I would like to mention what tasks should be solved in reality.