태풍 강수 특성 및 K-water 물 관리 태풍 대응체계 소개

박정수,Park, Jeong-Su 한국수자원학회 2016 물과 미래(한국수자원학회지) Vol.49 No.8

동적하중을 받는 기능성 고폭화약조성 시뮬런트 재료물성 연구

박정수,염기선,박충희,정세환,이근득,허훈,Park, Jungsu,Yeom, Kee Sun,Park, Chunghee,Jeong, Sehwan,Lee, Keundeuck,Huh, Hoon 한국군사과학기술학회 2013 한국군사과학기술학회지 Vol.16 No.6

This paper is concerned with the material properties of functional high explosive(FHX) simulant at various strain rates ranging from $10^{-4}/sec$ to $10^1/sec$. Material properties of FHX at high strain rates are important in prediction of deformation modes of FHX in a warhead which undergoes dynamic loading. Inert FHX stimulant which has analogous mechanical properties with FHX was utilized for material tests due to safety issues. Uniaxial tensile tests at quasi-static strain rates ranging from $10^{-4}/sec$ to $10^{-2}/sec$ and intermediate strain rates ranging from $10^{-1}/sec$ to $10^1/sec$ were conducted with JANNAF specimen using a tensile testing machine, INTRON 5583, and developed high speed material testing machine, respectively. Uniaxial compressive tests at quasi-static strain rates and intermediate strain rates were conducted with cylindrical specimen using a dynamic materials testing machine, INSTRON 8801. And cyclic compressive loading tests were performed with various strain rates and strains. Deformation behaviors were investigated using captured images obtained from a high-speed camera.

바람직한 통합물관리(IWRM) 추진방향

박정수,Park, Jeong-Su 한국수자원학회 2014 물과 미래(한국수자원학회지) Vol.47 No.8

찾아가는 한의사 주치의 사업 성과분석 연구

박정수,신선미,김효선,성현경,고호연,Park, Jeong-Su,Shin, Seon Mi,Kim, Hyo-Sun,Sung, Hyun Kyung,Go, Ho-Yeon 대한예방한의학회 2018 대한예방한의학회지 Vol.22 No.1

Objectives : The purpose of this study was to examine the effectiveness and satisfaction of visiting Korean Medicine doctor program. Method : The senior center visiting Korean Medicine doctor program was conducted in ten senior centers in Seongnam city from April 2016 to December 2016. Korean Medicine doctors were assigned senior center one by one. The program consisted of health lectures and health counseling. The health lectures embraces stroke, musculoskeletal disease, dementia, depression and self care for the elderly Results : A total of 194 elderly persons participated the program. The self-health awareness level were changed from $50.86{\pm}25.31$ to $57.17{\pm}24.62$ (p-value=0.003). The physical pain level was decreased from $5.33{\pm}2.99$ to $5.04{\pm}2.86$. The quality of life were changed from $0.791{\pm}0.155$ to $0.792{\pm}0.144$ (p-value=0.923). Overall satisfaction of visiting Korean Medicine doctor program was $9.36{\pm}2.11$. The need for sustainability for visiting Korean Medicine doctor program was $9.76{\pm}0.60$. Conclusions : The study demonstrated that visiting Korean Medicine doctor program had a positive effect on the health awareness level. The overall satisfaction and further need were high. Further program for senior center will be needed.

한의사 교의 사업에 대한 학부모의 만족도 조사 연구

박정수,신선미,고호연,이승환,김동수,성현경,Park, Jeong-Su,Shin, Seon Mi,Go, Ho-Yeon,Lee, Seung Hwan,Kim, Dong-Su,Sung, Hyun Kyung 대한한방소아과학회 2018 대한한방소아과학회지 Vol.32 No.3

Objectives The study aimed to examine satisfaction of elementary school students parents' on the program by school doctor of Korean medicine. Methods The program by school doctor of Korean medicine has been conducted in 22 schools in Seoul since June 2017. The program includes Korean medicine health care lecture for the students, the teachers, and the parents, the diet management advice, smoking/drinking cessation, and sex education. The program was varied by schools. This study investigated the parents' satisfaction of the program by school doctor of Korean medicine by a survey. Results A total of 92 elementary school parents participated in the survey, 92.4% of the respondents answered that the school doctor program showed positive effects on students' health. Most of them replied positive regarding the health education about smoking cessation (82.5%). Also, the respondents were satisfied about overall health education from the program (89.1%), and improvements of the students' learning ability through regular health checkups (59.8%). Conclusions Parents who were participated in the program by school doctor of Korean medicine positively evaluated about the program. They also shared their expectations to the role of the school doctor of Korean medicine in improving student's immune system and health counseling for the students and the school faculty.

유기수은의 신경독성에 대한 셀레늄의 보상작용

박정수,이효민,정용,신동천,노재훈,문영한,Park, J.S.,Lee, H.M.,Chung, Y.,Shin, D.C.,Roh, J.H.,Moon, Y.H. 대한예방의학회 1992 Journal of Preventive Medicine and Public Health Vol.25 No.1

This study was conducted to investigate the mechanism of protective effect by sodium selenite in methylmercuric chloride neurotoxicity, increasing intracellular $Ca^{2+}$concentration of the neuron. Methylmercuric chloride of 3mg/kg of body weight was administered simultaneously with sodium selenite of 5mg/kg and pretreatment of sodium selenite via intraperitoneal injection to rats. Also, effect of methylmercuric chloride($25{\mu}M,\;50{\mu}M,\;100{\mu}M$) and sodium selenite($200{\mu}M$) on free intrasynaptosomal $Ca^{2+}$ concentration were studied using the fluorescent $Ca^{2+}$ indicator fura -2 in vitro. After the treatment, at 6, 24, and 48 hours later, mercury in the cerebral cortex, liver and kidney tissues, succlnic dehydrogenase activities, adenosin-5'-triphosphate concentration, acetylcholinesterase activities, and intracellular $Ca^{2+}$ concentration in the cerebral cortex were determined in vivo. Cerebral synaptosomes of rats were incubated with methylmercuric chloride and sodium selenite in Hepes buffer for 10 minutes and free intrasynaptosomal $Ca^{2+}$ concentration were measured with fura-2 in vitro. The results were summarized as follows ; 1. The combined administration of $CH_3HgCl$ and $Na_2SeO_3$ and pretreatment of $Na_2SeO_3$ according to time significantly more increased in the cerebral cortex and decreased in the liver, kidney mercury concentrations compared to the administration of $CH_3HgCl$ only. 2. The combined administration of $CH_3HgCl$ and $Na_2SeO_3$ and pretreatment of $Na_2SeO_3$ increased more succinic dehydrogenase and acetylcholinesterase activities compared to the administration of $CH_3HgCl$ only. Particularly pretreatment of $Na_2SeO_3$ significantly more compared to the administration of $CH_3HgCl$ only. The concentration of adenosine-5'-triphosphate in $Na_2SeO_3$ treatment groups revealed a favourable effect compared to the administration of $CH_3HgCl$ only. 3. Intracellular $Ca^{2+}$ concentration in administration of $CH_3HgCl$ only was increased significantly more than control group in all test hours but was increased significantly more at 48 hours only after treatment in combined administration of $CH_3HgCl$ and $Na_2SeO_3$ and pretreatment of $Na_2SeO_3$ according to time interval more decreased significantly intracellular $Ca^{2+}$ concentration compared to the administration of $CH_3HgCl$ only. 4. Free intrasynaptosomal $Ca^{2+}$ concentration in the combined administration of $CH_3HgCl$ and $Na_2SeO_3$ was decreased ($24%{\sim}40%$) significantly more than the administration of $CH_3HgCl$ only. From the above results, the specific dosage of $Na_2SeO_3$ decreased increment of intracellular $Ca^{2+}$ concentration induced by administration of $CH_3HgCl$. These findings suggest the protective mechanism of $Na_2SeO_3$ on the neurotoxicity of $CH_3HgCl$.

일반논문 : 박근혜정부의 공공기관 개혁정책 방향과 과제: 언론보도 내용분석을 중심으로

최자은 ( Ja Eun Choi ),박정수 ( Jhung Soo Park ) 서울대학교 한국행정연구소 2014 行政論叢 Vol.52 No.4

본 연구는 박근혜 정부의 공공기관 개혁정책을 언론보도 내용분석을 통해 살펴보는데 목적이 있다. 분석 결과 박근혜 정부의 공공기관 개혁정책은 소프트웨어적 개혁중심, 자율 및 책임강조, 조직 및 인사관리 중심의 공공기관 개혁정책을 해 온 것으로 나타났다. 이는 신공공관리에 근거한 역대 정부의 공공기관 개혁정책과 유사한 방향을 취하고 있음을 알 수 있다. 박근혜 정부는 정부 및 공기업이 처한 대내외적 환경이 역대 정부와 달라졌음에도 불구하고 정부의 공공기관 개혁정책이 상당부분 역대 정부와 유사하다는 점을 언론보도 내용분석을 통해 알 수 있었다. 앞으로 박근혜 정부의 공공기관 개혁정책이 역대 정부와 다른 방향을 모색하고 있다면 공공기관 환경 변화, 시민거버넌스, 협업, 다양한 이해관계자와의 설득과 합의 등의 거버넌스적이고 협력적인 측면을 보다 지향하는 방식으로 추진될 필요가 있으며 언론을 통해 협의되고 설득될 때에 성공적인 공공기관 개혁이 가능할 것이다. This paper aims to analyze media coverage and conduct a content analysis to make comparisons between reforms implemented by the current government and previous administrations, and their different approaches. According to the research on media coverage for Park`s first one year and two months presidency, the press shows differences in their reporting propensity but concludes that it is similar with former governments in terms of their initial reform plan for public institutions and policy based on the New Public Management, particularly focusing on software-centered reform, autonomy and responsibility, and organizational and HR management. The attitudes of media coverage vary depending on the internal and external environment faced by the government and the public, even when current and former governments took a similar stance in public institution reforms. To sum up, the study shows that the current government`s reforms are similar to those of former governments based on New Public Management. Therefore, it is desirable to encourage collaboration and civil governance for consensus and agreement considering changing environment and culture within public institutions by inviting various stakeholders in order to conduct successful reform of those public institutions.

고장 전류 특성을 고려한 HVDC 적용 방안

박정수,장길수,김찬기,Park, Jung-Soo,Jang, Gil-Soo,Kim, Chan-Ki 한국전기전자학회 2007 전기전자학회논문지 Vol.11 No.4

한국 전력 계통의 가장 큰 문제점은 수도권의 부하 집중으로서, 서울과 경기도를 비롯한 수도권의 부하량은 전체 전력 소비량의 약 40%를 차지하는 반면 이들 지역의 발전량은 전체 전력 발전량의 약 16%에 불과하다. 이러한 수도권의 전력 수급에서의 불균형은 수도권이 아닌 다른 지역에서의 전력 전송을 필요로 한다. 이러한 장거리 전력 전송은 유효 전력에서의 손실 증대, 국지적인 무효 전력 불균형으로 인한 송전 용량 제한, 고장 용량의 증대 등을 일으키게 된다. 이를 해결하기 위해 고려할 수 있는 가장 간단한 방법은 수도권 내의 발전소 신설 또는 대용량 송전 선로의 추가 설치이다. 그러나 수도권은 과도한 인적 물적 자원의 밀집으로 인하여 대규모 발전소 및 송변전 설비의 건설을 위한 토지 조달 등에 어려움이 있고 또한 인구 밀집 지역에서는 공해와 같은 환경적 문제와 혐오 시설 기피 등의 사회적 문제로 인하여 현실적으로 발전소 또는 송 변전 설비의 건설은 불가능한 실정이다. 따라서 대규모 설비의 건설에 의한 문제 해결 보다는 기존 설비의 활용도를 증대시키는 방향으로의 접근법이 요구된다. 본 연구에서는 기존 송전 선로의 활용도 증대를 고려한 HVDC의 적용 방안을 개발하고자 하며, 이를 위한 시뮬레이션 모델의 개발 및 해석을 다루고 있다. One of the most serious problems in KEPCO power system is the load centralization in the capital area. The load capacity in the capital area is almost 40% of the total load. However, the generation capacity in this area is just 16% of the total generation. The inequality, between the power demand and supply, in this area needs the power transmission from other regions. The simplest method to solve the problem is the installation of power plants or the addition of high-capacity transmission line in the metropolitan area. However, because of the concentration of human and material resources, there is a difficulty in the installation of the generation and transformer facility. As a result, instead of the installation of large scale facilities, the approach to maximize the application of existing facilities is required. In this research, we will develop a scheme with an HVDC installation for enhancing power transfer capability by utilizing the existing transmission lines.

기비전 유기논과 관행논의 토양 화학 및 환경 특성 비교

박정수,왕용,강구,구본운,김한중,홍성구,홍승길,박성직,Park, Jeong-Soo,Wang, Long,Kang, Ku,Gu, Bon-Wun,Kim, Han-Joong,Hong, Seong-Gu,Hong, Seung-Gil,Park, Seong-Jik 한국농공학회 2015 한국농공학회논문집 Vol.57 No.6

Organic farming system has been considered environmental friendly and sustainable agricultural practice. However, the influence of organic farming on soil quality and environment is not well informed and controversial. We sampled and analyzed 0~15 cm and 15~30 cm depth soils of organic and conventional paddy fields in Yongin and Anseong. The electric conductivity and organic matter content of organic paddy soil were significantly less (p = 0.0097, 0.0067, respectively) than those of conventional paddy soil. Available phosphate and total phosphorus in 0~15 cm depth of organic paddy soil were $211.1{\pm}135.3$, $872.4{\pm}286.3mg/kg$, respectively, less than those of conventional paddy soil. Available phosphate amount in conventional paddy was $358.8{\pm}246.7mg/kg$, which is higher than 300 mg/kg that can cause secondary environmental contamination by runoff. The amount of total nitrogen in organic paddy soil was less than that in conventional paddy while their difference was not significant. The concentration of the heavy metals in organic paddy soil was also lower than that in conventional paddy soil but their difference was not statistically significant. Our findings demonstrate that electric conductivity, organic matter, nutrients, and heavy metals in organic paddy soil were less than those in conventional paddy soil. However, additional monitoring of soil properties for longer period is necessary to certify such a conclusion.

한의사 의료기기 사용과 관련된 판례 및 기존 연구 분석과 경향 변화

박정수,오기창,권상혁,추홍민,김정상,Park, Jeongsu,Oh, Kichang,Kwon, Sanghyuk,Chu, Hongmin,Kim, Jungsang 대한한방내과학회 2021 大韓韓方內科學會誌 Vol.42 No.6

Objectives: The aim of this study was to examine the debate on the use of medical devices between Western Medicine and Korean Medicine, as this is one of the greatest conflicts in Korea's medical profession. Judicial precedents and interpretations of authority serve as regulations because medical affairs law states that Korean Medicine practices are ambiguous. Method: We conducted a search in the Korean RISS, OASIS, and DBPIA databases using several keywords associated with medical devices, Korean Medicine, and Korean Medicine Doctors. The search period was until November 5 2021. The retrieved papers were classified according to the selection and exclusion criteria by checking the title, abstract, and text. For precedents, searches were done regarding comprehensive legal information, etc., and in the case of non-disclosure precedents, we requested access to the precedents by web-court requests. Results: A total of 80 documents were found as a result of the search, and 13 publications were included in the study. The selected publications were classified and analyzed by this research team into Korean medicine, Western medicine, and legal or state agency research. In the existing literature and judgments, the arguments that played a major role changed depending on the time the judgment was made. "Social conventions", "curriculum", "academic principles", and "health and hygiene dangers" were the key arguments. Conclusions: Further studies will be needed that can comprehensively arrange the existing literature and clinical results, and continuous study will be needed to verify that the use of medical devices by Korean medicine doctors is helpful for prognosis and accurate treatment of their patients.