상부 코일히터를 갖춘 나선재킷형 태양열 축열조의 성능예측을 위한 CFD 해석모델 개발 및 검증

백승만(Seung Man Baek),종일명(Yiming Zhong),남진현(Jin Hyun Nam),정재동(Jae Dong Chung),홍희기(Hiki Hong) 대한기계학회 2013 大韓機械學會論文集B Vol.37 No.4

태양열 온수급탕 시스템에서는 태양열 에너지가 집열판에서 획득되고 열매체로 전달되어 최종적으로 온수의 형태로 축열조에 저장된다. 본 연구에서는 상부 코일히터를 갖춘 나선재킷형 축열조의 축열성능 특성을 정확하게 해석할 수 있는 전산유체역학 모델을 개발하였다. 본 연구에서 고려한 축열조는 벽면에 열매체의 나선유로가 형성된 맨틀형 축열조의 일종으로 시스템 설계 단순화, 저유량 운전, 성층화 촉진 등의 장점을 지닌다. 또한 축열조 내부에 추가적인 코일히터가 장착되어 축열성능과 성층화의 추가적인 향상을 도모할 수 있다. 본 연구에서 개발된 해석모델의 검증은 실제 태양열 온수급탕 시스템의 실증실험 결과와 비교를 통하여 수행되었으며, 온수의 온도변화, 열매체의 온도변화, 성층화 온도분포의 측면에서 잘 일치하는 결과를 얻었다. In a solar domestic hot water (SDHW) system, solar energy is collected using collector panels, transferred to a circulating heat transfer fluid (brine), and eventually stored in a thermal storage tank (TST) as hot water. In this study, a computational fluid dynamics (CFD) model was developed to predict the solar thermal energy storage in a hybridtype TST equipped with a helical jacket heater (mantle heat exchanger) and an immersed spiral coil heater. The helical jacket heater, which is the brine flow path attached to the side wall of a TST, has advantages including simple system design, low brine flow rate, and enhanced thermal stratification. In addition, the spiral coil heater further enhances the thermal performance and thermal stratification of the TST. The developed model was validated by the good agreement between the CFD results and the experimental results performed with the hybrid-type TST in SDHW settings.

개선된 Google Activity Recognition을 이용한 상황인지 모델

백승은 ( Seung Eun Baek ),박상원 ( Sang Won Park ) 한국정보처리학회 2015 정보처리학회논문지. 소프트웨어 및 데이터 공학 Vol.4 No.1

Activity recognition technology is gaining attention because it can provide useful information follow user’s situation. In research of activity recognition before smartphone’s dissemination, we had to infer user’s activity by using independent sensor. But now, with development of IT industry, we can infer user’s activity by using inner sensor of smartphone. So, more animated research of activity recognition is being implemented now. By applying activity recognition system, we can develop service like recommending application according to user’s preference or providing information of route. Some previous activity recognition systems have a defect using up too much energy, because they use GPS sensor. On the other hand, activity recognition system which Google released recently (Google Activity Recognition) needs only a few power because it use ‘Network Provider’ instead of GPS. Thus it is suitable to smartphone application system. But through a result from testing performance of Google Activity Recognition, we found that is difficult to getting user’s exact activity because of unnecessary activity element and some wrong recognition. So, in this paper, we describe problems of Google Activity Recognition and propose AGAR(Advanced Google Activity Recognition) applied method to improve accuracy level because we need more exact activity recognition for new service based on activity recognition. Also to appraise value of AGAR, we compare performance of other activity recognition systems and ours and explain an applied possibility of AGAR by developing exemplary program.

르 꼬르뷔제와 미스 반 데로의 건축적 추상과 자연의 이중적인 경향에 대한 분석

백승만(Baek Seung-Man) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.10

This study is the analysis of dual aspects to the abstract architecture and Nature found in the works of great architects of modern architecture, Le Corbusier and Mies van der Rohe. Though they had used different set of architectural vocabulary, they shared the fundamentals of architectural space by keeping the relation with Nature and endowing humanity as well as pursuing abstract aesthetics, the mainstream of the arts at that time. Such balanced dualism provides an important implication to the architectural culture prone to extreme idealism due to the aspiration for the new world.

건축의 창작성과 대중화를 발전시키기 위한 건축문화정책에 대한 연구

백승만(Baek Seung-Man) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.11

This research is analysis by specialized facilities and architectural system through architectural and cultural policy in France. France has continuously developed architectural and cultural policy by cognizing importance relationship between architecture and culture since 1959. Specially, the IFA-Chaillot focused studying and systemizing architectural heritage, and spreading to the masses. And the FRAC Centre prepare progressive museum rather than publishing, exhibition and collecting experimental architecture around world. These two facilities provide very important suggestion to us facing cultural period.

알제리 부그졸 신도시 프로젝트에서의 도시설계 작업 과정에 대한 연구

백승만(Baek, Seung-Man) 한국도시설계학회 2016 도시설계 : 한국도시설계학회지 Vol.17 No.2

건축기술의 비약적인 발전에 비해 국내 건축계에선 아직 도시설계에 대한 인식과 디자인 기법이 아직 부족한 실정이다. 본 논문은 국내 도시설계 분야의 국제적인 경쟁력을 갖추기 위하여 알제리 부그졸 신도시 프로젝트에서 도시설계 작업의 실제 진행과정에 주목한 연구이다. 계약, 기본설계, 종합배치계획, 계획의 실행 단계 등 각 단계별 업무의 종류와 결과물을 살펴보고, 주요 논의사항을 정리하였다. 이러한 작업과정과 국내 신도시개발의 계획체계를 비교함으로써, 국내도시설계에 대한 세 가지 시사점을 도출할 수 있다. 첫째, 도시설계 작업에 대한 올바른 이해 및 수행능력이 필요하다. 둘째, 도시설계에 대한 실질적인 전문교육이 필요하다. 셋째, 해외도시에 대한 다양한 전문연구 및 자료축척이 필요하다. Compared to the remarkable development of construction technology, urban design techniques and awareness of urban design are still insufficient. In order to develop international competitiveness, this paper focuses on the urban design process conducted for Boughezoul New City in Algeria. Looking at the result and step by step work of every project phases, includings – contracting, basic design, general master planning, and plan execution – it summarize the main issues and discussions. Comparing this course of action and Korea’s new town development planning system, three implications for urban design are suggested. First, there is a need for proper understanding and ability to perform urban design work. Second, there is a need for practical professional training for urban design. Third, there is a need for a variety of specialized research and data on overseas cities.

카릴 처칠의 『소유자들』에 나타난 여성의 경제력과 모성

백승은 ( Seung-eun Baek ) 21세기영어영문학회 2021 영어영문학21 Vol.34 No.4

The purpose of this study is to analyze the reversal of conventional gender roles, women’s economic power and motherhood in Caryl Churchill’s Owners. In Owners, male characters are passive and dependent on their wives, whereas female characters are more active and independent. Churchill avoids focusing on mere biological differences and displays new directions and possibilities for women’s liberation. This paper examines how women’s economic power affects the domestic environment and relationship with a husband through an analysis of two female characters. This paper also discusses motherhood, which has been idealized and degraded by men, and revitalize the power of motherhood that is exerted not only in the domestic environment and personal aspects, but also in the social aspect. Owners shows that women should have economic means which will provide them with independence and liberation from oppression and have motherhood to change themselves and others. Both economic power and motherhood could be a powerful methods in overcoming oppression.

영업비밀 요건의 변천에 따른 대응방안에 대한 소고 -비밀관리성을 중심으로-

백승만(Baek Seung-Man) 전북대학교 법학연구소 2020 法學硏究 Vol.63 No.-

급변화하고 있는 4차 산업혁명 시대속에서 다양한 아이디어를 바탕으로 스타트업 등을 통해 사업군이 다각화되고 기술집약적 사업 중심의 비중이 커지면서 자신만의 고유기술 또는 노하우를 어떻게 관리하느냐에 따라 기업의 존폐가 달라지기도 한다. 최근 영업비밀 침해에 따른 분쟁이 증가하고 있지만 영업비밀로서 인정받기 위해서는 영업비밀에 해당할지라도 비밀로써 관리를 하지 않았다면 영업비밀로 보호를 받을 수 없게 된다. 따라서, 비밀관리성을 중심으로 국내외 입법례와 비밀관리성 판단기준 변천에 따른 판례를 살펴본 결과 입법상의 변화가 기존 판례의 태도 및 실무적 측면에서의 영향은 적어보여 이에 대한 차등적 판단기준과 입증책임의 전환 등 제도적 마련을 위한 제언을 하고자 한다. In the era of the 4th Industrial Revolution, which is rapidly changing, business groups diversify through startups and other means based on diverse ideas, and as the emphasis on technology-intensive businesses increases, the existence or abolition of enterprises may change depending on how they manage their own technologies or know-how. In recent years, disputes arising from the infringement of trade secrets have been increasing. However, in order to be recognized as trade secrets, even if they fall under the category of trade secrets, they cannot be protected as trade secrets unless they are kept secret. Accordingly, the Ministry of Secrecy and Management has examined legal precedents at home and abroad and judicial precedents based on changes in the standards for determining confidentiality. As a result, legislative changes have little impact on existing judicial precedents in terms of attitude and practice, we would like to make institutional recommendations, such as changing the burden of differential judgment and proof.

담장허물기사업이 거주민의 커뮤니티의식 및 안전의식에 미치는 영향

백승인(Baek, Seung-In),김유리(Kim, Yu-Ri),이제선(Lee, Jea-Sun) 한국지역개발학회 2010 韓國地域開發學會誌 Vol.22 No.1

Crimes occurred in the residential areas have led to the increasing fear of crime as well as the decreasing outdoor activity. Crime victims suffer both mental and physical aftereffects over a long period of time and this aftereffect caused by crimes has been emerged as the most serious social problems in modern society. As for the crime prevention, the traditional approach only relying on the police force has its own limitation in our rapidly changing society. Therefore, a new approach applying the concept of “Crime Prevention Through Environment Design (CPTED)” into physical environment must take into consideration, in order to prevent the crime and create safe space. Such efforts would improve the quality of life. Currently, the City of Seoul has been conducting “Wall Removal Project” that primarily aims to provide more parking lots through removing walls in a residential area. As such projects are able to bring out great impact on the residents’ sense of community and the feeling of safety, research from the safety perspective is in demand. The purpose of this research is to explore the relationship between physical environment and the residents’ sense of community and sense of safety. To this end, this paper adopted case study method with survey questionnaire. The study sites was selected by the following conditions: 1) two areas completed Wall Removal Project, 2) two areas adjacent to the completed Wall Removal Project site and 3) two areas apart from Wall Removal Project site. This study concluded that the residents in the Wall Removal Project completed possess the strong sense of community and safety compared to other residents. This study identified that Wall Removal Project contributes not only to provide additional parking lots in residential area but also to increase the residents’ sense of community and decrease the fear of crime.

안전보건경영시스템 45001

백승만(Baek Seung Man) 사단법인 안전문화포럼 2018 안전문화연구 Vol.- No.4

전 세계적으로 매 15초마다 1명 사망, 매 15초마다 153명 부상, 매년 231만 명 사망, 매년 3억 1700만 건 사고발생으로 건강과 안전 사건, 사고 및 관련 비용에 대해 무시무시한 통계가 나오고 있다. 많은 조직이 일반 보건안전 가이드라인, 국가별 혹은 산업표준을 사용하지만, 이 중 어느 것도 글로벌 적합성을 입증 받지는 못하고 있다. 국제 표준과 모범사례를 이용해 안전보건경영 시스템을 일치시키자는 것은 전 세계적인 요구였으며, 이 표준은 지역, 국가, 그리고 글로벌 단위에서 선진국과 개도국 모두에 적용이 가능할 것으로 보인다. 참고할 수 있는 국제 표준과 더불어 적절한 기반과 교육이 함께 제공 된다면 조직은 더 나은 미래를 위하여 안전보건 리스크를 해결할 수 있을 것이다. There are gruesome statistics about health and safety incidents, accidents and related costs, with 1 worldwide every 15 seconds, 153 injuries every 15 seconds, 231 million deaths each year and 317 million accidents each year. Many organizations use general health safety guidelines, national or industry standard standards, none of which have been proven to be globally conformable. It was a global need to align safety and health management systems with international standards and best practices. This standard is likely to be applicable to both developed and developing countries at regional, national and global levels. If appropriate standards and training are provided along with international standards that can be referenced, the organization will be able to address safety and health risks for a better future.

15,16세기 部民告訴禁止法(부민고소금지법)의 추이와 지방통치

백승아 ( Seung Ah Baek ) 서울대학교 국사학과 2015 韓國史論 Vol.61 No.-

This paper examines the government``s discussion on the law of prohibiting accusations against local magistrates by people(Bumin goso geumjibeop, 部民告訴禁止法) and its development in 15th,16th century Joseon, especially focusing on the government``s perception on various agents and their relationships involved in this law. Ultimately, this paper intends to reexamine the meaning of the law in tern of Joseon``s local governing system. The law of prohibiting accusations against local magistrates was a law that ensured the magistrate``s stable governance over the region and that established the relationship among various different groups in the local society. Since the founding of Joseon, the government dispatched magistrates to the local area in pursuit of a centralized state. However, local people specifically men with formal bureaucratic rank (pumgwan, 品官), local functionary(hyangni,鄕吏) frequently fired charges against the magistrate, and to solve this conflict the government started to discuss the need of the law to prohibit their accusations against the magistrate. The law was regulated in 1420 but was constantly discussed until 1433. Various stances and concerns of the government toward local ruling were involved in this law, such as the establishment of the hierarchy between the local magistrate and the or- people, the need to repress corrupt governors and protect the people, and the need to maintain checks and balances in the power of the magistrates. As a result, the law proclaimed that people should not fire charges against their magistrates except those who had self resentments. This was the best way for the government to rule the local society efficiently, especially through the magistrate. However, practicing the law in reality turned up to be complicated since the criterion of ``self resentment`` was not set clear. Thus, when the case was not related to ``self resentment`` and yet the magistrate``s corruption appeared evident, the accused magistrate were to be penalized by the government. Meanwhile, in order to operate the law smoothly, the government dispatched a king`s envoy, which only stimulated people to make appeals to the envoy, making charges against the magistrate a public phenomenon. This became more vibrant as King Sejo allowed the people to come and appeal to him directly. Even after this law was enacted, conflicts between the people and the magistrate was still ongoing, leading to the loss of the magistrate``s authority. The government sought methods to solve this problem. In 1524, during King Jungjong``s reign, the punishment was strengthened as to exile the entire family to the border area for those who fired charges against the magistrate. Even when the discussion of abolishing the law was raised during King MyoungJong``s reign, the government maintained the law insisting on its importance. In case of scholargentry( sajok, 士族) they got a l m r degree of punishment, but this special favor was only limited to a small group of scholar-gentries. In considering the fact that wen scholar-gentries were punished when firing charges against the magistrate, it is likely that the government perceived the magistrate superior to scholar-gentries. Even though the law showed complicated aspects in its management, the government attempted to constantly support the authority and stable position of the magistrate in the local society by maintaining the law. This could be understood as the strong will of the government to reinforce their local governing policy taking advantage of the magistrate, which continued even through the 16th century when the scholar-gentries grew as a ruling group in the local society.