태권도수련이 초등학생의 지적, 정서적 및 사회적 생활태도에 미치는 영향 : focusing on the northern area of Kung-Ki province

김관현,김찬겸,문원배 龍仁大學校 體育科學硏究所 1998 體育科學硏究論叢 Vol.8 No.1

The subject of this research is to offer the materials to help Tae-Kwan-Do education of children. School grade, level of Tae-Kwan-Do and year of practice were set as independent factors to investigate the effects of Tae-Kwan-Do practice to intellectual, emotional and social behavior of elementary student, and aspects of school life, emotional development, manner of living and physical development were set as dependent factors to find out how much effect does Tae-Kwan-Do had on children's social development. Questionnaires were structured with 5 point scale and sent to total 126 persons to verify the theory that school grade, level of Tae-Kwan-Do, practice year will result a difference in school life, emotional development, manner of living and physical development. The conclusion of the study form this investigation is ans followed: 1. Tae-Kwan-Do practice results the similar difference (p(.01) in emotional development according to the school grade 5-6 and grade 3-4 showed the similar difference from later analysis. 2. Each level of Tae-Kwan-Do in school life showed similar difference (p(.05) and later analysis showed that between level 3. and level 1 and lower results similar difference. Aspect of emotional development also showed similar difference that later analysis showed that between level 3. and 1 lower results similar difference. 3. The year of practice in school life showed similar difference (p(.01) and later analysis showed that between 3 year, and less than one year results similar difference. The year of practice in emotional development showed very similar difference (p(.001) and later analysis showed that between longer 3 years, 2 years and less than one year showed similar difference. Also in physical development showed very similar difference and more than 3 years and less than one year showed similar difference from later analysis.

지난 2년간의 학회지 "신경정신의학" 심사 평가보고

김찬형,김세주,김도관,김성곤,박원명,송동호,박용천,이영문,오강섭,정영철,이상열,김주한,이동영,이헌정,함병주,김율리,김문두,김정진,이강욱,천근아,김재진,홍진표,홍승철 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.6

Lidocaine, Thrombin, Epinephrine 의 항균효과

김진우,이동건,전혜선,김승준,김석찬,안중현,김치홍,권순석,김영균,김관형,문화식,신완식,송정섭,박성학 대한감염학회 2005 감염과 화학요법 Vol.37 No.6

목적 : 기관지내시경 검사에서 흔히 사용되는 국소마취제인 lidocaine과 내시경시 지혈목적으로 사용되는 thrombin과 epinephrine이 각종 균주에 미치는 항균효과에 대해 알아보고자 하였다. 재료 및 방법 : 균주는 가톨릭대학교 성모병원에서 2004년 3월부터 2004년 9월까지 임상검체 에서 동정된 S. aureus, S. pneumoniae, K. pneumoniae, P. aeruginosa 각각 42, 42, 42, 43주를 대상으로 하였다. Lidocaine, thrombin, epinephrine 감수성 검사는 National Committee for Clinical Laboratory Standards (NCCLS, 2002)의 기준에 따랐다. 결과 : Lidocaine은 S. aureus, S. pneumoniae, P. aeruginosa에서 MIC_(50), MIC_(90) 모두 20,000 ㎍/mL 이었다. K. pneumoniae는 각각 10,000 ㎍/mL이었다. Thrombin은 S. aureus와 P. aeruginosa에서 MIC50 500 lU/mL 과 MIC_(90) 500 IU/mL 이상이었고, K. pneumoniae에서는 MIC_(50)과 MIC_(90)이 모두 500 lU/mL이상이었으나 S. pneumoniae에서는 MIC_(50)과 MIC_(90)은 125 IU/mL이었다. Epinephrine은 K. pneumoniae, S. pneumoniae에 대한 MIC_(50), MIC_(90)가 모두 >500 ㎍/mL이었고, S. aureus와 P. aeruginosa에 대한 MIC_(50), MIC_(90)가 모두 500 ㎍/mL이었다. 결론 : 기관지 내시경 검사에서 흔히 쓰이는 lidocaine, thrombin, epinephrine 등의 약제들이 호흡기 질환의 흔한 병원균인 S. aureus, S. pneumoniae, K. pneumoniae, P. aeruginosa 균주들에 대해 항균 효과가 있을 수 있어 세균배양검사에 영향을 미칠 수 있겠다. Background : We performed this stody to find out about antimicrobial effect of lidocaine which is commonly used local anesthetic, and thrombin and epinephrine used for hemostasis during bronchoscopic procedures. Materials and Methods : The microorganisms that were cultured from specimens obtained during bronchoscopy were Staphylococcus aureus (n=42), Streptococcus pneumoniae (n=42), Klebsiella pneumoniae (n=42), and Pseudomonas aeruginosa (n=43) collected from St. Mary's Hospital, from March to Sep 2004 were used for susceptibity testing. Susceptibility to lidocaine, thrombin, and epinephrine were tested according to the National Committee for Clinical Laboratory Standards. Result : MIC_(50) and MIC_(90) of lidocaine for S. aureus, S. pneumoniae, P. aeruginosa were all 20,000 ㎍/mL and that for K. pneumoniae were 10,000 ㎍/mL. MIC_(50) and MIC_(90) of thrombin for both S. aureus and P. aeruginosa was 500 IU/mL and above 500 IU/mL, respectively; that for K. pneumoniae were all above 500 IU/mL and for S. pneumoniae they were 125 IU/mL, MIC_(50) and MIC_(90) of epinephrine for K. pneumoniae and S. pneumoniae were above 500 ㎍/mL; that for S. aureus and P. aeruginosa were 500 ㎍/mL. Conclusion : We observed possible antimicrobial effect of lidocaine, thrombin, and epinephrine in vitro against pathogens such as S. aureus, S. pneumoniae, K. pneumoniae, P. aeruginosa, which are common respiratory microorganisms. The use of these agants could affect the result of bacterial culture.

Korea Pathfinder Lunar Orbiter (KPLO) Operation: From Design to Initial Results

Moon-Jin Jeon,Young-Ho Cho,김은혁,Dong-Gyu Kim,Young-Joo Song,홍승범,Jonghee Bae,Jun Bang,Jo Ryeong Yim,Dae-Kwan Kim 한국우주과학회 2024 Journal of Astronomy and Space Sciences Vol.41 No.1

Korea Pathfinder Lunar Orbiter (KPLO) is South Korea’s first space exploration mission, developed by the Korea Aerospace Research Institute. It aims to develop technologies for lunar exploration, explore lunar science, and test new technologies. KPLO was launched on August 5, 2022, by a Falcon-9 launch vehicle from cape canaveral space force station (CCSFS) in the United States and placed on a ballistic lunar transfer (BLT) trajectory. A total of four trajectory correction maneuvers were performed during the approximately 4.5-month trans-lunar cruise phase to reach the Moon. Starting with the first lunar orbit insertion (LOI) maneuver on December 16, the spacecraft performed a total of three maneuvers before arriving at the lunar mission orbit, at an altitude of 100 kilometers, on December 27, 2022. After entering lunar orbit, the commissioning phase validated the operation of the mission mode, in which the payload is oriented toward the center of the Moon. After completing about one month of commissioning, normal mission operations began, and each payload successfully performed its planned mission. All of the spacecraft operations that KPLO performs from launch to normal operations were designed through the system operations design process. This includes operations that are automatically initiated post-separation from the launch vehicle, as well as those in lunar transfer orbit and lunar mission orbit. Key operational procedures such as the spacecraft’s initial checkout, trajectory correction maneuvers, LOI, and commissioning were developed during the early operation preparation phase. These procedures were executed effectively during both the early and normal operation phases. The successful execution of these operations confirms the robust verification of the system operation.

야뇨증 환아들의 심리사회적 특성에 대한 다기관 연구 : 행동 및 정서 문제를 중심으로

조수철,김재원,신민섭,황준원,한상원,박관현,이상돈,김경도,김건석,서홍진,이유식,정재용,김영균,문두건,남궁미경,한창희,조원열,김영식,배기수,이종국,정우영,신의진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. Methods : Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. Conclusion : The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.

近世日本의 朱印船貿易에 관한 硏究

金文琯 제주대학교 1985 논문집 Vol.21 No.1

Syu In Sen trade is a form of tradet to be done in the recent times of Japan. In that time Japan traded with many countries in south east Asian area. She traded with the countries for her economic profit and the good neighbor diplomatic policy. The important commodities of export and import were silver and silk. In that time Japan produced many silver and silk was produced mainly in China But this trade had been continued only for 35-years. It was the reason that the government adopted a national isolation policy for the maintenance of its power.

중공 크랭크축의 비틀림 진동 해석 및 측정

金寬柱,文洪晙 弘益大學校 科學技術硏究所 1995 科學技術硏究論文集 Vol.6 No.-

In recent years, the problems of noise and vibration are critical issues in order to reduce the weight of internal combustion engine components. It is found that the bending, torsional and lateral vibration of crankshaft are the main causes of engine noise and vibration problems. Therefore it is necessary to identify the vibration behavior of crankshaft. In this paper, the vibration analysis of hollow crankshaft was carried out. The torsional vibration characteristics of hollow crankshaft were analyzed and compared with those of same size solid crankshaft in respect of equivalent mass and stiffness by using I-DEAS. The natural frequencies and mode shapes of both crankshafts are measured by impact hammer test using LMS CADA-X system.

開途國의 經濟成長에 대한 貿易의 役割

金文琯 제주대학교 1977 논문집 Vol.9 No.1

A country's growth may be stimulated by foreign trade when the offer curve it faces shifts outward. Such a shift improves the country's terms of trade. It may also enconrage the growth of its factor endowment, rate of utilization of that factor stock, or level of technology, and thus shift its production possibilities outward. The expansion of trade has often induced the discovery or development of previously idle natural resources, and thus expanded production possibilities. It has caused expansion of total labor inputs in the developing countries. The capital stock may increase because domestic saving rises, or capital is imported from abroad. Expanding export industries in some cases improve skills and technology for the country as a whole, but that improvement depends on the traits of its export sectors. The less-developed countries have teen discontented with their role in international trade, for several reasons. They argue that industrial monopolies in the matur countries charge them high prices for manufactures. They claim that the terms of trade tend in the long run to turn against their exports; this is in fact unclear, but world demand for their primary-product exports certainly grows less rapidly than it does for industrial products. They complain that their export earnings are relatively unstable, and this is cleary the case. Careful analysis is required, however, to determine the extent to which the less-developed countries can improve their lot by restricting trade, as they have extensively done. Several of the arguments for tariffs can change the income distribution (but direct taxation would be better); tariffs can curb luxury imports (but may simply stimulate luxury-folds production at home); tariffs can lure labor from the traditional agricultural sector (but a subsid to industrial employment would be more efficient). The infant industry argument is valid but justifies only temporary protection. Actual trade restrictions in the less-developed countries are quite heavy, taking such forms as multiple exchange rates and domestic content requirements as well as tariffs and quotas. Studies of protected industrialzation find heavy costs of inefficency, excessive capital-intensity, and the like. Concentration on import-substituting industrialization may cause countries to overlook the potential gains from expanding international trade, especially the export of manufactured goods. The evidence suggests that it would be efficient for the less-developed countries to expand their exports of simple manfuactures requiring labor-intensive fabrication, But heavy tariff protection on such items by the industrial countries has minimized this mutually beneficial division of labor. Proposals to circumvent this drawback include customs unions among the less-developed countries themselves and the granting of tariff preferences by the industrial countries. But it is actually difficult to expect the realization of such proposals. So I propose the hypothesis that the level of education is one of the most important factors in order to overcome the heavy tariff protection of industrial countries.

원통 연삭에서 가공 능률 향상을 위한 연삭 저항의 측정에 관한 연구

김원일,이진,이윤경,왕덕현,이상복,이관철,문원길 경남대학교 공업기술연구소 2000 硏究論文集 Vol.18 No.-

본 연구에서는 원통 연삭 가공에서 가공 능률 향상을 위한 연삭 저항을 측정하고자 연삭 가공 중에 발생하는 연삭 저항의 추이를 확인하였고 다음과 같은 결과를 얻었다. 숫돌과 공작물간의 연삭 강성은 공작 속도의 증가에 따라 지지계의 강성이 높은 경우 증가하였고 절삭 깊이와 연삭 숫돌의 속도에는 연삭 강성이 감소하는 경향을 보였다. 또한 총합 강성은 공작 속도, 절삭 깊이 및 연삭 숫돌의 속도 증가에 따라 지지계의 강성이 높을 수록 증가하였다. 연삭기의 강성 변형과 가공 능률에 영향을 주는 값으로 연삭 강성비는 지지계의 강성이 높을 수록 감소하였다. In this study, the measurement of grinding resistance to improve grinding efficiency in cylindrical grinding was studied and the following conclusions could be obtained. Relation grinding wheel and workpiece, grinding stiffness increases according to increase of work speed for high machine stiffness and decreases depth of cut and grinding wheel speed. Also, resultant stiffness increases high machine stiffness according to increase work speed, depth of cut and grinding wheel speed. The values of the effect stiffness deflection in grinding machine, grinding stiffness ratio decrease according to high machine stiffness.

濟州道産業構造改善方案에 관한 硏究

金文琯 濟州大學校 社會科學大學 社會發展硏究所 1985 社會發展硏究 Vol.1 No.-