π-수소결합에 대한 DFT 계산

박채용,한혜리,김용호 경희대학교 자연과학종합연구원 2003 자연과학논문집 Vol.9 No.2

π-수소결합을 하고 있는 복합체들(acetylene-HCl, acetylene-HCN, acetylene-acetylene, propyne-HF, cyclopropane-HCl, benzene-HCl)의 구조와 결합에너지를 DFT 방법으로 계산하여 실험결과와 비교하였다. DFT calculation for complexes of n-hydrogen bonds(acety1ene-HCl, acetylene-HCN, acetylene-acetylene, propyne-HF, cyclopropane-HC1, benzene-HC1) has been performed and the results were compared with experiments.

트레이닝유형에 따른 성인여성의 신체구성 및 체력변화

송채훈 朝鮮大學校 스포츠科學硏究所 2007 스포츠科學硏究 Vol.18 No.-

This research divides these to Aerobic training group, Anaerobic training group and Aerobic-anaerobic training group to 18 adult woman which inhabit on the Gwangju city P area to examine closely effect that three type exercise that ordinary people was apt to touch gets to general married woman's physide amnd physical strength, body composition factor and random sampling by each people. And to body girth, cardiovascrlai-respiratory function, body composition, subcutaneous fat two enforcing post test after exercise while pre test and 8 week after group exercise formula and physical strength factor measurement analysis a incidental and following conclusion get. 1. Aerobic training group girths of the chest, upper arm girth, thigh girth. difference that keep in mind by waist measure order showed and Anaerobic training group expressed difference that keep in mind by thigh girth, waist measure order in change of group body region different girth and Aerobic-anaerobic training group expressed difference that keep in mind between exercise before and behind in girth of the chest. 2. Expressed difference that Aerobic training group keep in mind between exercise before and behind in heart rate and capacity of the lung in difference of group heart exhaust ability. 3. Change of group listing body composition expressed difference that Aerobic training group and Anaerobic training group keep in mind between exercise before and behind in the body-fat and weight. 4. Aerobic training group listing suprailiac, midaxillary, abdominal. triceps, difference that keep in mind by thigh order showed and Anaerobic training group expressed difference that keep in mind between exercise before and behind by thigh, popliteal order in change to group body region different subcutaneous fat two and Aerobic-anaerobic training group expressed difference that keep in mind between exercise before and behind in popliteal. 5. In group physical strength factor different change Aerobic training group cardiovascular -respiratory function, difference that keep in mind by trunk flexion order showed and Anaerobic training group expressed muscular endurance. back strength, trunk extension. difference that keep in mind by cardiovascular-respiratory function order and Aerobic-anaerobic training group expressed difference that keep in mind between exercise before and behind by muscular endurance, cardiovascular-respiratory function, power order. Fluent analysis that go group displayed correlation which back strength and muscular endurance keep in mind after exercise.

心臟畸形의 病理 : 附:實驗的 畸形形成

李濟九 大韓法醫學會 1977 대한법의학회지 Vol.1 No.1

소구경 미세홈 고속가공시 가공환경변화에 따른 가공성 평가

정연행,이채문,강명창,이득우,김정석 한국공작기계학회 2002 한국공작기계학회 춘계학술대회논문집 Vol.2002 No.-

High speed machining is one of most effective technologies to improve productivity. It can give great advantage for manufacture of die and Moulds. However, when the high speed machining of materials, especially in machining of micro groove, a severely thermal demage was generated on workpiece and tool. Generally, the cutting fluid is used to improve penetration, lubrication, and cooling effect. In order to rise the performance of lubrication, it contains extreme pressure agents (CI, S, P). But the environment of work room go bad by those additive. Therefore, the compressed chilly air with Oil mist system was developed to replace the conventional cutting fluid system. This paper carried out the tests to evaluate the machinability by the cutting environment in high speed micro groove machining of NAK80 (HRC40). Compressed chilly air with oil mist was ejected on the contact area between cutting edge and workpiece. The effectiveness of this developed compressed chilly air with oil mist system was evaluated in terms of tool life. The results showed that the tool life of carbide tool coated TiAIN with compressed chilly air mist cooling was much longer than with dry and flood coolant when cutting the material.

플랫 엔드밀을 이용한 미세 홈 가공에 관한 연구

이재일,이채문,정융호,이득우 한국공작기계학회 2002 한국공작기계학회 춘계학술대회논문집 Vol.2002 No.-

Mechanical micro-engineering is an easy and cheap way to fabricate micro-structures. If the application of the conventional machining method using flat-end mill becomes available for the micro-manufacturing process, it will be advanced as an extension of the conventional machining process. In this study, micro-grooves cutting using flat-end mill(φ8) was performed. The characteristics on flat-end milling was investigated to improve machinability of micro-grooves. The experiments were performed according to variations of spindle revolution, depth of cut, and feed rate. Machinability through various cutting conditions was evaluated by surface geometry, tool wear, and cutting force. The results show that micro V-grooves of width(pitch) 297/μm were acquired by flat-end milling. The maximum and minimum roughness of the wall of grooves was 438 and 67 nm, respectively.

청소년의 연령별 체격 발달에 관한 연구

이창섭,김재운,남상우 충남대학교 체육과학연구소 2000 體育科學硏究誌 Vol.18 No.1

The purpose of this study was to analyze the tendency of physical development by age in adolescence. For this study, the health documents including 400 students' records were selected from the 4 highschools in Deajon city. In order to analyze the records in health documents, mean and standard deviation were used on SPSS window version 9.0. The results of the study were as follows; First in the growth of height men's Height was greater than that of women by an average of 6.03㎝ during at the age of 8 and 18, but at the age of 11(4th grade in elementary school) and 13(6th grade), women's height surpassed that of men only once. In the case of men, the quantity of annual maximum development(QAMD) was shown at the age of 12 and 13 by an average of 8.03㎝ and that of women, QAMD was shown at the age of 10 and 11 by 6.85㎝. Second, in the growth of weights the weight of men was more than that of women by an average above 10㎏, but there was no case that women's weight surpassed that of men like result of height. In the case of men, the QAMD was shown at the age of 14 and 15 by an average of 7.05㎏, and at the age of 10 and 11 by an average of 6.85㎏ in women. Third, in the growth of chest girth, the size of men was bigger than of women by an average of 4-8㎝, but when women were 14 years old(1 st gade in middle school), they surpassed men's size of chest girth only once. In the case of men, the QAMD was shown at the age of 17(1st grade in highschool) and 18(2nd grade) by an average of 4.56㎝ and in women, during 13(6th grade in elementary school) and 14(1st grade in middle school) by an average of 4.76cm. These results could be interpreted as follow. When the men enter highschool, they have more activities than in middle school to show off their "masculinity". On the Contrary, women' activities in highschool decrease from the middle school. Because they want to keep their "femininity". And Lastly, in the growth of sitting height, the sitting height of men and women increased annually by an average of 2.31㎝ and 3.23㎝. In the case of men and women, the QAMD was shown at the age of 13 and 14 by an average of 3.76㎝ and 5.92㎝. Women's sitting height surpassed that of men at the age of 12(5th grade in elementary school) and 14(1st grade in middle school).

소방보호복과 119 구조복의 착의실태 분석

배현숙,김채련,이주영 창원대학교 생활과학연구소 1999 생활과학연구 Vol.3 No.-

The purpose of this study was to analysis on the clothing practice of fire fighter's protective clothing and 119 rescue clothing surveys of user's opinion and experiment on the physical properties of material. Firefighter's protective clothing should be required more flame-resistance, water-resistance, air permeability and reflectivity, 119 rescue clothing should be required more water-resistance, toughness and air permeability . Firefighter's protective clothing should be improved color, size, clothing weight, washability and clothing comfort.

모성으로 구축하는 여성 택견의 새로운 패러다임에 관한 탐색

김영학,장경태,김태일,허채봉 龍仁大學校 武道硏究所 2011 武道硏究所誌 Vol.22 No.1

여성택견연맹은 택견의 최고지도자가 택견미래를 위한 포석으로 창설을 주도한 것이다. 그런 만큼 연맹의 기능과 역할에 거는 택견전체의 기대가 큰 것을 알 수 있다. 그럼에도 연맹은 그 기대에 부응하지 못하고 조직 자체의 존폐가 위기에 몰렸던 것도 사실이다. 이제 새로 출범하는 제2기 연맹은 회장을 중심으로 외견상으로 볼 때 탄탄한 진용임이 분명하다. 집행부의 임원 한 사람 한 사람의 면면을 보면 충분히 수긍이 간다. 다시 말해 인적자원은 충분하다는 뜻이다. 문제는 이 인력을 얼마나 활용하느냐 하는 것이라고 생각된다. 지난 날 잘 한 것을 계승하여 더욱 활성화하고 부족했던 부분을 보완하고 개선하면 될 것이다. 앞서 살펴본 바와 같이 모든 문제의 시작과 결과는 여성택견인들의 참여의식의 여부에 달려 있다고 판단된다. 우리 연맹이 정체된 것도 따지고 보면 바로 우리 각자의 이기주의적․편의주의적 의식에 기인하는 것이라고 생각한다. 공동체적 가치를 지향할 때 인간은 인간다워진다는 것이 보편적 진리이다. 이를 모를 사람은 없을 것이다 그런데 알면서도 이를 실행하지 못하는 것이 어려운 문제인 것이다. 택견 내부의 공동체적 가치구현을 우리 여성연맹 구성원들이 지닌 모성적 이타주의로 이끌어 나간다면 여성연맹의 기능은 활성화될 것이다.

의사 결정지원 모형에 의한 태양에너지 이용시스템의 경제성 고찰

최인수(In-Su Chea),조덕기(Dok-Ki Jo),최영희(Young-Hi Chea) 한국태양에너지학회 1990 한국태양에너지학회 논문집 Vol.10 No.1

태양열 주택 및 급탕의 보급 정책은 민수용 에너지의 절감 또는 대체의 의미에서 그 필요성 및 당위성을 인정받고 있으나, 다른 대체에너지와 마찬가지로 태양열 이용시스템의 경제성이 가장 문제가 되고 있는 실정이다. 본 연구에서는 태양열 주택 및 급탕의 경제성을 상세히 분석함으로써 실질적인 보급정책 자료를 제공하며, 실수요자를 위한 계몽근거를 마련하고자 한다.<br/> 본 연구에서는 태양열 이용시스템의 경세성을 정확히 수행하기 위한 의사결정지원 시스템 (decision suppert system)을 확립시켰으며, 이에 따른 태양열 이용시스템의 열적성능 해석과 동시에 경제성 분석은 시행오차(trial & error)하에 수행할 수 있도록 각 종전산 프로그램을 개발하였다.<br/> 태양열 주택 및 급탕의 열적성능 해석은 모의실험을 통하여 기상 조건과의 상관관계를 도출하고 태양열 이용시스템의 추가비용 및 연료가 이용을 현재가 (present worth) 개념으로 적용하여 산출하고, 순익분기 해석법(break-even point analysis method) 및 수명가 산정법(life-cycle cost analysis method)으로 경제성 분석을 중점적으로 수행하였다. It has been recognized that a policy for supplying solar house and hot water production systems utilizing solar energy needs to be driven to save civilian comsuming energy or to develop alternative energy. However, the economic feasibility study of solar energy systems must be carried out before their practical use.<br/> The purpose of this study is to furnish information for supplying policy and enlightening users with the economic feasibility study of solar house and hot water production systems.<br/> Decision support systems are established to carry out economic analysis on solar systems more accurately. Therefore, computer simulation is carried out to analyze the performance of solar systems and also economic feasibility study by trial and error method is carried out.<br/> Fuel cost and additional cost for solar systems are estimated employing present worth concept and economic analysis has been conducted using the break-even point analysis method and life-cycle cost analysis method.

A Cultural criticism of childbirth practice in the U S from a medical-legal pluralistic perspective: Limitation of Medicalization and reconstruction of the cultural meaning of childbirth

( Chea Yun Jung ) 고려대학교 법학연구원 2012 Korea University Law Review Vol.11 No.-

This article argues that medical-legal anthropology and medical-legal pluralism can contribute to a meaningful understanding of medical practice and medical law. Medical anthropology focuses on how culture and society influence health matters, and understands medicine in a cultural context. Medical pluralism concentrates on the plural elements of the medical system and their democratic interactions, and further promotes the integration of official and unofficial systems, such as cooperation between physicians and non-physician providers. From these theoretical foundations, medical law reflects itself on medical culture which emerges, changes, and disappears in civil society. One of the important issues in the U.S. health law where this interdisciplinary research could be especially meaningful is childbirth practice. The history of childbirth in the 20th century of the United States is described as the medicalization of childbirth. This means that the process of childbirth, which was both a natural and cultural phenomenon, has become defined and treated as a medical condition. The advocate of culturally re-conceptualized childbirth may criticize the excessive medicalization of childbirth, representatively the Cesarean section, which often leads to inappropriate or excessive intervention in current childbirth practice in the United States. To establish humanized childbirth practice, we need to respect multiple ways of childbirth including home birth and respect various kinds of personnel in the labor process; such as midwives. The U.S. health law should respect the significant and unique role of midwifery and devise ways to legislate the cooperation between the two autonomous professions, doctors (ob/gyn) and midwives.