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서울시 도시안전 풍수해 위험도 분석 및 대책 우선순위 결정방법 연구
박승주,심숙연,공정식,이정렬,Park. Seung-Joo,Shim. Sook-Yeon,Kong. Jung-Sik,Lee. Jung-Lyul 한국방재학회 2014 한국방재학회 학술발표대회논문집 Vol.2014 No.1
서울을 위협하는 다양한 위험요소는 재난 및 안전관리 기본법에 의하여 자연재난, 사회재난으로 구분할 수 있으며, 이외에 일상생활에서의 사고, 범죄 등을 추가할 수 있다. 최근 기후변화에 의한 예측불허한 재해발생 빈도가 증가하고 있고, 규모 또한 과거 비교할 수 없을 정도로 점점 커지고 있는 추세이다. 본 연구에서는 서울시에 발생하는 자연재난 중 풍수해에 대한 위험도 분석과 그에 따른 대책의 우선순위 결정방법에 대하여 연구하였다. 위험도 분석(발생빈도, 피해규모)을 통해 서울시 풍수해 취약성을 평가하고, 이를 통해 수립된 다양한 대책들 중 어떤 정책들을 우선적으로 시행되어야 하는지 우선순위 결정방법에 대하여 연구하였다. 본 연구를 통해 서울시의 풍수해 관련 다양한 정책들이 체계적이고 효율적으로 집행될 수 있을 것으로 판단된다.
톱밥발효돈사(醱酵豚舍)와 세멘트 돈사(豚舍)에서 사육(飼育)되는 돼지 내부(內部) 기생충(寄生蟲) 감염조사(感染調査)
박승주 ( Seung Ju Park ),탁동섭 ( Tong Seob Thak ),차룡섭 ( Yong Seob Cha ) 한국가축위생학회 1992 韓國家畜衛生學會誌 Vol.15 No.2
To investigate the prevalence of swine internal parasitic infection, the fecal examinations were carried out between July. 1991. and June. 1992. The samples of 3, 126 swine feces and sawdust were collected from 6 sawdust fermentative and 6 cement-floored pigsties in Chonnam area. The results obtained were as follows. 1. The rate of swine internal parasitic infection, 38.5% from sawdust fermentative pigsty was higher than 22.2% from cement-floored pigsty. 2. Of the swine internal parasites detected, Balantidium cole, 21.4% from growing pig of sawdust fermentative pigsty, and 21.3% from sow of cement-floored pigsty was the must commonly encountered. The infection rate of another parasites including Trichuris suis in sawdust fermentative pigsty was also higher than cement-floored pigsty. 3. Larvae of Strongyloides ransomi was the highest infection rate(40.0%) at sawdust of the sawdust fermentative pigsty.
박승주(Seung-joo Park),정기만(Kiman Jeong) 한국산학기술학회 2014 한국산학기술학회 학술대회 Vol.2014 No.2
우리나라는 2014년 전체인구의 12.7%의 고령화 사회이며 금리 2%대인 저금리 와 세계경기침체라는 악조건 속에서 살아가고 있고 이런 상황으로 인해 재테크는 선택이 아닌 필수로 재테크를 외면하고 살아가기는 힘든 사회에 살아가고 있다. 그로 인해 대중매체와 전문가집단이 추천하는 적립식 투자가재테크의 필수 상품이 되었다. 하지만 적립식투자 수익부분에 숨어있는 리스크와 원금손실에 대한 자료는 일부만 공개하고 수익부분에 대한 자료만을 공개하고 있는 실정이다. 이 연구는 우리나라 대표 운영사의 인디펜던스 펀드의 수익률 대하여 분석해 본 것이다. 적립식투자는 처음부터 존재하지 않는다는 것을 알아 낼 수 있다.
열처리를 통해 휘발분이 제어된 콜타르 피치를 이용한 C/C 복합체 제조
박승주(Seungjoo Park),이선호(Sean Ho Lee),이송미(Song Mi Lee),이규상(Gyusang Lee),김광득(Kwang-Deuk Kim),정두환(Doo-Hwan Jung) 한국환경에너지공학회 2022 한국열환경공학회 학술대회지 Vol.2022 No.2
C/C composites are lighter than metals and have excellent heat and electrical conductivity, and in order to maintain excellent physical properties even in harsh environments, various fields such as semiconductors, automobiles, rockets, nuclear power, EDM, mechanical seals, etc. and a certain importance is emerging. The high-density carbon block can be distinguished into a unidimensional system and a binary system according to the type of raw material. A system is a substance that requires a binder. In this study, a commercial coal tar pitch was heat-treated at a ramping rate of 2 to 10°C /min and 410 to 490°C to control the volatile content, β -resin content, molecttlar weight and etc. for production of semi-cokes. After that, the β-resin content of the heat-treated pitch was measured, and changes in the fixed carbon and volatile contents were investigated via proximate analysis (PA) and thermogravimetric analysis (TGA). Then, MALDI-TOF I MS was measured in order to grasp the change in the molecular weight of the pitch depending on the rate of temperature rise. In addition, in order to understand the types of molecules generated in the heat treatment process of pitch, pyrolysis gas chromatography/mass spectroscopy (Py-GC/MS) was analyzed, and the reaction mechanism of pitch generated in the heat treatment process was understood.
박승주(Seung-Ju Park),이정근(Jeong-Gun Lee),고영웅(Young-Woong Ko),방기석(Ki-Seok Bang) 한국정보기술학회 2017 한국정보기술학회논문지 Vol.15 No.4
The RDS (Reference Data Set) system is widely used in the field of file forensics that provides information about similar files. As software becomes more complex and diverse, the number of files processed in the RDS systems is steadily increasing. Therefore, in order to implement an effective RDS system, it is required to use a small amount of storage space and to accurately analyze similar files. In this paper, we propose the idea of using the storage space effectively by reducing the length of the hash string stored in the database. In addition, by dividing the file into blocks, it is possible to analyze information about similar files as well as duplicated files. Experimental results show that the proposed method shows good performance in similarity search while greatly reducing storage space.
아토피피부염 유병여부에 따른 영유아의 영양섭취와 성장 비교 연구
박승주(Seung Joo Park),이재선(Jae Sun Lee),안강모(Kang Mo Ahn),정상진(Sang Jin Chung) 대한지역사회영양학회 2012 대한지역사회영양학회지 Vol.17 No.3
The prevalence of atopic dermatitis (AD) has increased recently all over the world. Several studies worldwide reported growth retardation associated with AD, but few studies were reported in Korea. Therefore, the objective of this study was to identity the differences in growth and nutrient intakes between Korean children with and without AD. The participants were 71 AD children and age, gender-matched 81 control children aged 10 to 36 months. Demographic information was gathered by questionnaires. Height and weight were measured at clinic and health centers. Height and weight for age, and weight for height were converted as deviation in Z scores using World Health Organization Standard. A 24 hour dietary recall method was performed to estimate nutrient intakes. A higher percentage of AD children had insufficient energy and intakes of calcium, phosphorus, iron, zinc and vitamin B2 , defined as intakes lower than 75% of the Dietary Reference Intakes for Korean, compared to the control group (P < 0.001, P < 0.001, P = 0.003, P = 0.001, P = 0.014, P = 0.001, respectively). The percentages of children with height and weight for age Z score below than-1 (stunted) were significantly higher in the AD group (P < 0.001 and P < 0.001, respectively). Multiple food restriction, defined as ≥ 3 food elimination, was associated with insufficient energy and intakes of calcium, phosphorus, iron, zinc, vitamins A and B2 . In conclusion, children with AD need regular nutrient assessment and education about alternative food choices to avoid r food elimination in order to prevent growth retardation or inadequate nutrient intakes. Further longitudinal studies for growth and nutrient intakes should be performed to understand the patterns of growth in children with AD. (Korean J Community Nutr 17(3) : 271~279, 2012)