건설 현장 강행공사 방지가 인적사고에 미치는 영향에 관한 연구

이성일,강경식,Lee, Sung-Il,Kang, Kyung-Sik 대한안전경영과학회 2017 대한안전경영과학회지 Vol.19 No.1

In the construction sites, rush (speedy construction) work have recently been overused because of budget reductions by reducing the construction duration after the long-term economic recession and construction business stagnation with institutional change including the instruction of the duration shortening bidding system and the introduction of the post-construction sales system by the Korea Research Institute for Human Settlements. Due to this, negligent accidents have frequently occurred by forcing manpower, equipment, finance, and material procurement and pressing ahead with impractical construction wok at night according to the reduction of construction schedules. Therefore, this paper has the necessity of this study to seek for alternatives to prevent negligent accidents by finding factors related to rush work in the reality that the importance for preventing negligent accidents is more emphasized while they have not been reduced in construction sites.

교육시설 화재위험성 평가를 위한 기초조사에 관한 연구

이성일,함은구,Lee, Sung-Il,Ham, Eun-Gu 한국재난정보학회 2021 한국재난정보학회 논문집 Vol.17 No.2

연구목적: 교육시설 화재위험성 평가를 위한 기초 데이터 확보를 위하여 화재하중 분석하였다. 사전조사로 화재하중을 산정하기 위해 학교시설의 화재하중과 관련된 기초자료를 수집하였다. 연구방법: 기초자료는 화재하중의 정의 및 종류, 화재하중 산정을 위한 연소열 데이터 화재하중에 대한 선행연구를 통하여 진행하였고 화재하중 산출시 구획실에 존재하는 가연물 중량에 해당 연소열을 곱하여 산정하였다. 연구결과: A 초등학교의 고정가연물은 교실, 음악실, 교무실은 정서나 안전을 고려하여 바닥이 주로 목재로 이루어져 있었으며, 나머지 구획실은 석재로 이루어졌다. 천장과 벽은 석고보드, 콘크리트로 되어있어 가연물에 속하지 않았다. 각 실별로 대표적인 적재가연물은 교실은 책상, 의자, 사물함 등으로 나타났으며 과학실은 실험기구함, 실험도구함이 주를 이루어었으며 도서실은 책과 서가, 열람기구 등이 큰 비중을 차지하였다. 결론: A 초등학교의 적재가연물에 따른 적재화재하중은 도서실, 컴퓨터실, 영어학습실, 교무실, 일반교실, 과학관, 음악실의 순으로 나타났다. Purpose: Fire load analysis was conducted to secure basic data for evaluating fire risk of educational facilities. In order to calculate the fire load through a preliminary survey, basic data related to the fire load of school facilities were collected. Method: The basic data were the definition and types of fire loads, combustion heat data for the calculation of fire loads. The fire load was evaluated by multiplying the combustion heat by the weight of the combustibles in the compartment when calculating the fire load. Result: As for the fixed combustible materials of A-elementary school, the floor was mainly made of wood, in consideration of emotion and safety in the classroom, music room, and school office, and the rest of the compartments were made of stone. The ceiling and walls were made of gypsum board and concrete, so they were not combustible. The typical inflammable items in each room were desks, chairs, and lockers in the classroom, and the laboratory equipment box and experimental tool box were the main components in the science room, and books, bookshelves, and reading equipment occupied a large proportion in the library room. Conclusion: 'The fire loads of A-elementary' schools according to the combustibles loaded were in the order of library, computer room, English learning room, teacher's office, general classroom, science hall, and music room.

살모넬라 C1 serogroup 특이 rfbM 유전자 증폭과 염기서열 분석

이성일,정석찬,문진산,박용호,이존화,김병수,백병걸,Lee, Sung-il,Jung, Suk-chan,Moon, Jin-san,Park, Yong-ho,Lee, John-wha,Kim, Byeong-su,Baek, Byeong-kirl 대한수의학회 1996 大韓獸醫學會誌 Vol.36 No.1

The Salmonella rfb gene encoding for the biosynthesis of the oligosaccharide-repeating units of the O-antigenic determinants was cloned and sequenced. A set of nucleotide primers(a forward and reverse) was selected to target a defined region of the guanosine diphospho-mannose(GDP-Man) pyrophosphorylase synthase gene : rfbM of Salmonella C serogroup. The primer set was used to develop a PCR-based rapid and specific detection system for Salmonella C1 serogroup. Amplification bands of predicted size(1,422bp) were generated from 11 different Salmonella C1 isolates. The bands were verified to be specific for the C1 serogroup by Southern blot analysis using reference homologous DNA specificity was further confirmed by the lack of reactivity with heterologous DNA derived from non-salmonella members of the family enterobacteriaeceae. A specificity of 100% was deduced along with a very high sensitivity shown by a detection limit of 1fg of a purified DNA template. The isolated DNA sequence was found to be 99.8% homologous to S montevideo but the related primers amplified with the predicted band sizes with all the Salmonella C1 serogroups tested. It is concluded that the PCR protocol based on the rfbM gene from S cholerasuis is optimal fast and specific for the detection of Salmonella C1 serogroup and also the corresponding probe is suitable for rapid detection of all Salmonella C1 serogroup DNA tested. This technology should facilitate the identification of contaminated pig products and for any other products contaminated with the Salmonalla C1 serogroup. The immediate impact of this developed method will be in the area of food safety of pig products with the potential prospect for adaptation to other food inspection technologies.

한국 연근해 보구치, Argyrosomus argentatus의 Leslie Matrix에 의한 자원변동 예측

이성일,장창익,LEE Sung Il,ZHANG Chang Ik 한국수산과학회 2001 한국수산과학회지 Vol.34 No.5

한국 연근해 보구치 자원의 지난 21년간 ($1975\~1995$년) 자원량을 이용하여 추정된 고유치는 밀도 독립적인 경우와 밀도 종속적인 경우 약 0.8 정도로 감소하는 추세에 있었으며, 밀도 종속적인 경우 상수 a는 $5.234\times10^{-10}$이였다. 그리고 보구치 자원의 연령별 출생율은 1세 1,053에서 6세 310,803의 범위였고, 연령별 생잔율은 1세 1,053 에서 6세 310,803의 범위였으며, 초기생잔율은 0.00005였다. 자원량 및 어획량 예측치는 추정된 매개변수를 사용하여 밀도독립적인 경우와 밀도 종속적인 경우의 Leslie Matrix에 적용해서 추정하였는데, 이때 어획사망계수가 $F_{35\%}$와 $F_{0.1}$, 수준인 0.252/yr와 0.368/yr에서 자원량과 어획량이 급격히 증가하였으며, 밀도 송속 적인 경우 밀도 효과의 부여는 환경수용력 (carrying capacity)을 산출하므로 보다 현실적으로 접근할 수 있다. 평형상태시의 어회 사망계수는 약 0.7/yr였다. 따라서, 본 연구는 현재 남획상태에 있는 한국 연근해 보구치 자원을 Leslie Matrix에 적용시켜 자원량 및 어획량 변동을 예측해 봄으로써 남획으로 인해 고갈되어 가는 보구치 자원을 회복시킬 관리방안을 제시하였다 Prediction of the variation in annual biomass was conducted for the white croaker. Argyrosomus argentatus in Korean waters using leslie Matrix, based upon fishery data for the past 21 years and biological data, We used density-independent and density-dependent Leslie Matrix models. Similar parameters were estimated from two models except that the density-dependent model was influenced by the density effect variable, q(i,t), The eigenvalue of the white croaker population for the $1984\~1995$ period was estimated to be 0.8, indicating a declining pattern of the population. The survival rate of 0-th year class was calculated to be 0.00005. Based on the schedule of the age-specific survival rate and fecundity, the future biomass and catch was predicted for various levels of fishing mortalities (F), If F was set at 0.252/yr ($F_{35x}$) or 0.368/yr ($F_{0.1}$), the biomass and catch increased, and if F was set at 0.922 ($F_{current}$), the biomass and catch decreased, The fishing mortality at equilibrium was estimated to be 0.7/yr. Finally, the management strategy of the white croaker was discussed.

적층 평판형 SOFC에서 LSM 전극 코팅

이성일,여동훈,신효순,윤영수,Lee, Sung-Il,Yeo, Dong-Hun,Shin, Hyo-Soon,Yoon, Young-Soo 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.7

In this study, we have coated the inner surface of YSZ channel using LSM powder ink through depressurization process for making the cathode of a stacked planar-type SOFC module. To coat the surface of YSZ channel uniformly, we tried to find the optimum manufacturing condition for LSM ink. We used four different dispersants (BYK series) and two different solvents (ethanol and DMF) to make the LSM ink. It was revealed that the ink made with the ethanol solvent and the BYK-111 dispersant has the lowest viscosity, relatively low contact angle and most excellent dispersibility. After depressurizing a chamber filled with LSM ink and sintered YSZ channel, we have found that the YSZ channel was uniformly coated with LSM cathode. The LSM ink with 25 vol% BYK-111 showed the most uniform coating.

Virgil의 Eclogue V

이성일 ( Sung Il Lee ) 연세대학교 인문학연구원 1990 人文科學 Vol.64 No.-

한국 현시대 영역(英譯)의 문제점 -우리 문학의 진정한 해외 소개를 위하여-

이성일 ( Sung Il Lee ) 연세대학교 인문학연구원 1990 人文科學 Vol.63 No.-

고대영어 Elegy에서의 Dramatic Monologue

이성일 ( Sung Il Lee ) 연세대학교 인문학연구원 1985 人文科學 Vol.54 No.-

『훈민정음(訓民正音)』 서문(序文)과 King Alfred의 Cura Pastoralis 서문(序文) -문효근(文孝根) 선생님께-

이성일 ( Sung Il Lee ) 연세대학교 인문학연구원 1994 人文科學 Vol.71 No.-

퇴직공직자에 대한 변호사법의 규율방법의 문제점과 개선방안

이성일 ( Sung Il Lee ) 법조협회 2015 法曹 Vol.64 No.6

Article 89-6 of Attorney-at-Law Act which requires submission of a list of names of retired public officials currently working for law firms and law offices and a statement of business of the retired public officials is constitutional for the following reasons; Its purpose, which is to protect credibility of public service, is justifiable, the means to achieve the purpose is adequate, limitation it casts on the freedom of occupation is minimal, and the public interest it seeks to achieve is much greater than the private interests that are limited by it. In order to clarify whether a retired public official falls under the scope of Article 89-6 of the Attorney-at-Law Act, it is necessary to amend Decree of the Attorney-at-Law Act to add date of retirement as an element to decide whether the person is actually a retired public official. In cases where names and statements of business of retired public officials are not submitted, there is no legal grounds for Legal Ethics & Professional Conduct Council to force submission. However, attempts to incorporate retired public officials into the concept of law office staff or to group these two concepts together for the purpose of regulating under the Attorney-at-Law Act the activities of retired public officials is improper from a structural standpoint of view for the following reasons; Roles of a office staff and a retired public official are totally different, and the purpose of Article 89-6 of Attorney-at-Law Act is to prevent retired public officials from acting as lobbyists, whereas the purpose of the article relating to the reporting duty of office staffs is to prevent them from acting as brokers. Enacting Lobbyist Act to regulate retired public officials activities would be a better way from a structural standpoint. It would have been better if the Act treated law firms and law offices equally with regards to violation of Paragraph 1 of Article 89-6 of Attorney-at-Law Act. Also, Paragraph 5 of Article 89-6 is somehow not stated in Paragraph 1 of Article 97-4. To correct these errors of the Act, it is advisable to amend the Act to state Paragraph 5 of Article 89-6 and Paragraph 1 of Article 89, which is the general provision regarding application for the commencement of a disciplinary action, in Paragraph 1 of Article 97-4. It is also advisable to amend the Act to allow Legal Ethics & Professional Conduct Council to submit to the National Assembly the list of names of retired public officials and a statement of business of the retired public officials that it acquired under Paragraph 1 of Article 89-6, when retired public official becomes candidate for public office which requires personnel hearing at National Assembly, as the amendment will strengthen credibility of public service and strike balance between regulation of attorney-at-law retired from a public office and retired public official.