DPF 재생을 위한 연료 후분사 전략에 대한 연구

최민후 ( Minhoo Choi ),윤성준 ( Sungjun Yoon ),박성욱 ( Sungwook Park ) 한국액체미립화학회 2017 한국액체미립화학회지 Vol.22 No.2

Recently, as the interest in environmental issues have increased around the world, the regulation on vehicle exhaust have been tightened in each country. To satisfy such tightened exhaust regulation, automotive manufactures are forced to equipped Diesel Particulate Filter (DPF) at Diesel vehicles. If DPF is used for a long time, DPF regeneration should be performed. The objective of this study is to research on post injection for DPF regeneration. The result of the study was that it was desired that retarding post injection timing, lower load of engine and smaller the amount of main fuel injection, for DPF regeneration. Oil dilution was tended to increase as load was lower, amount of post injection was increased, and post inject-tion timing was retarded.

경력단절 여성베이비부머의 노동시장 복귀에 관한 분석

최민정 ( Choi Minjeong ) 한국사회복지정책학회 2017 사회복지정책 Vol.44 No.1

본 연구는 여성베이비부머의 노동시장 복귀 양상을 유형화하고 노동시장 특성, 인구학적 특성, 그리고 가구특성이 노동시장 복귀유형에 미치는 효과를 분석하는데 초점을 두었다. 이를 위해 경력단절 경험을 중심으로 여성베이비부머들의 노동시장 복귀에 관한 동태적인 분석을 행하고자 하였으며, 그 과정에서 사건배열분석(sequence analysis)을 통하여 고용상태 변화에 대한 체계적 이해의 구조를 마련하고자 하였다. 연구의 결과는 다음과 같다. 첫째, 교육수준에 따른 노동시장 복귀여부에 차이가 있었으며 대졸 이상 학력 여성들이 경력단절 경험 이후 노동시장에 복귀하지 않은 비율이 더 높았다. 둘째, 사건 배열분석을 통해 노동시장 복귀형태를 유형화한 결과 상용직 경력유지형, 지속적 경단 후 불안정노동형, 자영업 이후 미취업형, 지속적 무급가족종사자형, 장기미취업형의 다섯 가지 유형으로 분류되었다. 셋째, 다항로짓분석을 통해 노동시장 복귀 유형에 영향을 미치는 사회경제적 요인을 탐색한 결과 교육년수, 배우자 소득, 초산연령, 출산 전 직종 등이 노동시장 복귀유형에 유의미한 영향을 미쳤다. 이러한 연구결과에 기초하여 본 연구는 여성베이비부머의 노동시장 복귀의 대표적인 양상을 제시하고 유형에 따른 특성 차이를 보여줌으로써 노동시장 복귀유형별 고용지원 강화, 중고령 여성 적합 직종 발굴 및 일자리 창출, 고용지속을 위한 사후관리의 강화 등을 제안하였다. This study purpose was conduct a dynamic analysis of career interrupted female baby boomer`s return to the workforce through sequence analysis. And this study tracks 14 years after the career interruption. This study based investigation on the data complied by the KLIPS, where the workforce performance is the focal point of it`s research. The findings of study were follows. First, according to the study, years of education is a vital factor in female baby boomer`s return to the workforce. Second, sequence analysis produced 5 groups - continuous regular employment, continuous career interrupted after precarious employment, business owner and unpaid family worker, precarious employment after unemployment, and continuous unemployment. Last, result of multinominal logistic regression results that pre-career interrupted job family was a permanent employment larger than continuous career interrupted after precarious employment, business owner and unpaid family worker relatively continuous unemployment. Therefore, this study suggests enlargement of employment policy for prevent female baby boomer`s poverty and social exclusion.

광학 다중분광 센서를 이용한 식생지수 산정

최민하(Choi, Minha),조혜린(Cho, Herin) 대한토목학회 2013 대한토목학회 학술대회 Vol.2013 No.10

상관관계를 고려한 AZ31 합금 판재의 동적인장물성 측정불확도평가

최민국(M. K. Choi),허훈(H. Huh),김창근(C. G. Kim),채균식(K. S. Chae) 한국소성가공학회 2014 한국소성가공학회 학술대회 논문집 Vol.2014 No.5

In the last years, a growing interest of lightweight vehicle design could be observed in the automotive industry. This trend is related to an increasing interest in substituting steel parts by lightweight material such as magnesium alloy. However, evaluation of the crashworthiness should be considered for lightweight vehicle as crash safety becomes more stringent. In order to evaluate the crashworthiness of auto-body structure, finite element methods has been conducted for crash analysis. Generally, strain rates distribution of auto-body structure in the car crash is ranging from 0.001/s to 500/s. Since the material properties depend on the strain rates, the dynamic behavior of magnesium alloy sheet must be examined and applied to the finite element model appropriately. This paper is concerned with the evaluation of standard uncertainty of high speed tensile properties of AZ31 sheet considering correlation effect during the measurement. Standard uncertainty of the true stress is evaluated considering sources of uncertainties of input quantities and their associated sensitivity coefficients using modified uncertainty evaluation model considering correlation. The results show that the standard uncertainty decreases when correlation is applied to uncertainty evaluation procedure.

국내 허가 및 긴급사용승인된 코로나19 바이러스감염증 치료제의 허가사항 비교 고찰

최민정(Min Joung Choi),서현옥(Hyun Ok Seo),도희정(Hea Jeong Doh),김영림(Younglim Kim),최경숙(Kyoung Suk Choi),박윤주(Younjoo Park),서경원(Kyung Won Seo),정지원(Jeewon Joung),김지연(Ji Yeon Kim),박인숙(In Suk Park),이원재(Wonjae Lee) 대한약학회 2023 약학회지 Vol.67 No.3

In a situation where the development of various treatments is urgently needed to overcome the global outbreak of coronavirus disease 2019 (COVID-19) and the sequential emergence of new variant viruses, Ministry of Food and Drug Safety (MFDS) made tremendous efforts to promptly supply the safe and effective therapeutics manufactured by local and global companies through accelerated marketing authorization or emergency use approvals. To date, seven products (including overlapped) have received marketing authorization or emergency use approvals from MFDS, and their indicated patient group according to the severity, efficacy, and safety information are different by each products. Therefore, this study is to compare the product information and the major clinical outcomes obtained from clinical studies of COVID-19 treatments authorized or approved for emergency use in Korea and to introduce the MFDS’s efforts for establishment of accelerated approval system for COVID-19 treatment and development of relevant guidelines. It is hoped that this study will serve as a reference for the latecomers who is preparing the development of therapeutics for emerging infectious diseases in the future.

MBD 기반 무기체계 소프트웨어 개발 프로세스 및 산출물 개선 방안

최민관(Minkwan Choi),국승학(Seunghak Kuk) 항공우주시스템공학회 2023 항공우주시스템공학회 학술대회 발표집 Vol.2023 No.10

매장문화재 조사비용의 국가 부담 확대 필요성과 방안

최민정(Choi, Minjeong) 한국고고학회 2017 한국고고학보 Vol.105 No.-

우리나라는 매장문화재의 원형유지 및 발굴조사 금지를 기본원칙으로 하고 있다. 그러나 경제·사회의 발전을 위해 개발 또한 피할 수 없는 것이 현실이기 때문에 토목이나 건설공사 등을 위하여 부득이한 경 우 매장문화재 조사를 실시하고, 그에 따른 소요비용은 개발사업 시행자가 전액 부담하도록 하고 있다. 매장문화재 조사비용을 개발사업 시행자가 전액 부담하도록 한 것은 개발사업으로 인한 매장문화재의 훼손·파괴에 대한 보상(원인자부담)과 개발이익의 사회환수(수혜자부담)라는 유네스코(UNESCO) 권 고사항을 반영한 것으로 1973년 문화재보호법 개정을 통해 시행된 이래 현재까지 기본적으로 유지되고 있다. 매장문화재 조사에 소요되는 비용을 개발사업 시행자가 일방적으로 부담하도록 하는 것은 각종 건설공 사 중 매장문화재 훼손·파괴 및 발견신고의 기피, 유적보존에 따른 사유재산권 침해, 매장문화재 보호 정책 및 제도에 대한 부정적인 인식과 여론 형성, 각종 민원 제기 및 개선 요구 등 여러 가지 사회적 문 제와 갈등·분쟁을 발생시키는 원인이 되고 있다. 매장문화재 조사비용에 대한 원인자부담원칙이 도입될 당시와 달리 현재 우리나라의 경제규모와 재정 여건 등이 성장·발전하는 등 사회적 환경이 변했고, 매장문화재 조사비용의 국가 부담 확대는 헌법에 서 규정한 국가의 당연한 책무를 이행하는 것이다. 개발사업에 따른 매장문화재 조사비용을 개발사업 시행자에게 일방적으로 전액 부담케 하기보다는 국 외 선진국과 같이 국가의 매장문화재 조사비용 부담을 점진적으로 확대하고, 그에 따른 소요재원을 마 련할 수 있는 다양한 방안을 모색해야 한다. 개발사업 시행자는 일반적으로 개발에 따른 경제적 이익을 우선적으로 추구하기 때문에 개발사업 시행 자의 매장문화재 보호 의식과 양심에만 의지하는 현행 방식과 국가의 규제에는 한계가 있을 수밖에 없 다. 국민이 매장문화재 보호 및 역사적 가치, 매장문화재 조사의 중요성을 인식할 수 있도록 지속적인 홍보와 노력이 함께 이루어져야 한다. The basic principles regarding archaeological heritage in Korea are to maintain the original form of archaeological heritage and to ban investigation through excavation. However, since economic and social growth inevitably requires land development, investigations on archaeological heritage have been conducted in unavoidable circumstances for civil engineering and constructions, with project owners fully bearing the expenses thereof. Investigation costs of archaeological heritage are fully borne by project owners, which reflects the guidelines of UNESCO regarding compensation for damage and demolition of archaeological heritage due to development projects (Causer Pays Principle) and the return of development profits to society (Beneficiary Pays Principle). This has been maintained since 1973 when such principles were executed through the amendment of the Cultural Heritage Protection Act. Making project owners pay the full expenses for research on archaeological heritage has caused various social conflicts, disputes, and problems including intentional damage and demolition of archaeological heritage in various construction work, avoidance of reporting discoveries of archaeological heritage, infringement issues of private property rights due to the preservation of relics, the formation of negative recognition and public opinions on the protection policies and systems of archaeological heritage, and various civil complaints and improvement requests, etc. Unlike in the past when the Causer Pays Principle was first introduced on research expenses of archaeological heritage, Korea’s social environment has changed, with development and growth in economic scale and financial circumstances. Expanding government burden for research expenses means carrying out the obligation of the government designated in the Constitutional Act. It can be argued that there is a need to seek various plans to fund financial sources and to gradually expand the burden of the government on the research expenses of archaeological heritage, rather than making project owners pay full research expenses on the archaeological heritage according to development projects. Since project owners preferentially pursue economic profits according to development, there are limitations in the current policies that solely depend on the protection will and conscience of the project owners and on government regulations. Persistent promotion and efforts should be made so that people can recognize the historic value of archaeological heritage and the need to protect it, as well as the importance of research on archaeological heritage.

지역 활성화를 위한 공공임대주택의 지역 커뮤니티시설 도입 연구

최민아(Choi, Min-ah),윤정란(Yun, Jeong-ran),김륜희(Kim, Ryoonhee) 한국도시설계학회 2017 도시설계 : 한국도시설계학회지 Vol.18 No.2

최근 공공임대주택은 신혼부부, 사회 초년생, 대학생 등으로 공급 대상이 확대되고 입지 또한 도심 지역으로 변화되고 있다. 그러나 기존 공공임대주택은 주로 저소득층이 거주하며 지역사회에 부정적인 영향을 끼쳐 기성 시가지내 임대주택이 건설에 대한 지역사회의 우려 및 반대의견이 제시되고 있다. 이에 본 논문은 공공임대주택 건설 시 확대된 개념의 커뮤니티 시설을 조성하고 이를 지역주민이 이용하도록 함으로써 지역사회의 활성화를 도모함과 동시에 공공임대주택 건설을 활성화하는 방안을 모색하고 있다. 최근 공급이 확대되고 있는 행복주택 시범사업지구를 대상으로 주변지역 현황 및 주요 이용대상의 특성을 분석하고, 이를 토대로 입주민과 지역주민의 공동 이용을 위한 지역별 특화된 커뮤니티 시설을 제시하였다. 각 커뮤니티 시설에는 지역별 앵커 기능을 중심으로 문화 · 여가, 복지 · 교육, 일자리 시설을 종합적으로 제공하고 이와 함께 중앙정부 및 지자체 지원프로그램을 연계할 수 있는 방안을 제시하여 커뮤니티 시설의 설치 및 지속적 운영 방안을 모색하였다. 이와 같은 지역특화형 종합적 커뮤니티 시설의 조성은 기존의 부정적 공공임대주택 단지의 이미지를 개선하고 도시 기능을 활성화시키는 긍정적 요소로 작용할 것이다. Recently, public housing residents have been expanding by newlyweds, job beginners and university students and their locations are also changed from new developed suburban areas to the inside areas of existing cities. However, because of the negative impacts of public housings, the constructions of new trend public housings, where low incomes residents are concentrated, are facing to the opposition of neighborhoods and local societies. Therefore, this study tries to suggest to introduce local community centers for local societies in public housings. Community centers could make a role to gather neighborhoods and residents of public housings, to activate local communities. ‘Happiness public housing pilot projects’ are selected as case study sites. For each site, anchor functions and facilities are proposed with others functions and community facilities on the basis of the analysis of local and demographical characteristics. Central and local governments’ supporting programs are also proposed to promote the construction and maintenance of community centers. The introduction of community centers for neighborhood uses in public housings would bring positive impacts to local communities and would result in the vitalization of public housing constructions.

수면 장애 및 아토피피부염에 효과적인 7 가지 한약 처방의 항염증 활성 연구

최민진(Min-Jin Choi),응웬리(Ly Thi Huong Nguyen),정정화(Jeonghwa Jeong),박민영(Minyoung Park),윤주희(Joohee Yoon),이병욱(Byung-Wook Lee),양인준(In-Jun Yang),신흥묵(Heung-Mook Shin) 한의병리학회 2021 동의생리병리학회지 Vol.35 No.2

UX(사용자경험)와 인문학의 연관에 관한 연구

최민성 ( Min Sung Choi ) 한국언어문화학회 2016 한국언어문화 Vol.0 No.59

This article is to reveal the most actively used the concept of correlation of User Experience and humanities that are in high-tech industry and design. It also embodies the correlation with the methodology of phenomenology and hermeneutics called. It is presented to the direction of UX in its methodology. Phenomenology, hermeneutics are in zeitgeist with a ray of philosophy flow, reflection and interpretation of the text, with its strengths are the theoretical understanding about communication. This article was used as a methodology for describing the UX design and proper application of these theories. Its application to review a similarity in terms of the expansion of the humanities rather than the methodology applied strictly theoretical and applied perspectives presented enough. As for the practical application Chapter 2, I saw the re-reflection from a philosophical perspective humanities concepts and methodologies used in today UX design. Visual communication design with a new look, intuitive and spread way to personar, methodology of affordances, etc. It is said that touching the humanistic reflection. In Chapter 3, the reverse reinterpreted the design and UX want to continue the discussion in a way that seeks a humanistic methodology to the vision. The concept of"fusion of horizons"- established in hermeneutics, ``hermeneutic circle`` have said that the present contribution to the direction of the UX design. Based on this theory embodies the UX design model based on hermeneutics. Through this study, I believe that how we can interact industry and Humanities know about UX.