국가 대표급과 제주도 고교 대표급 수영선수들의 그랩 스타트의 운동학적 분석

김철원,김승곤,오만원,임상용,김성찬,이창준,남사웅,이세형,류재청,신석종,김세민 濟州大學敎 體育科學硏究所 1998 체육과학연구 Vol.4 No.-

The purpose of the study was to undertaken to analysis the Grab starting technique between national representive team(3) and Cheju's representive team(3) with 3D cinematography. The conclusions obtained were as follows: Cheju's showed more elapsed time than national representive team on starting block. and more vertical than horizontal direction of COG position, more concentrated vertical velocity & acceleration than forward direction. Therefore It is necessory for cheju's to train balanced trust force in horizontal and vertical direction in grab starting technique.

The effect of combined Rehmannia glutinosa Libosch and Eleutherococcus senticosus Max(OPB) extracts on bone mineral density in ovariectomized rats.

Kim,Jung-Keun 대한구강생물학회 2007 International Journal of Oral Biology Vol.32 No.4

This study was conducted to investigate the preventingeffects of OPB (Rehmannia glutinosa Libosch and Eleuth-erococcus senticosus Max extracts) and combined OPB/Calcium therapy on bone loss in ovariectomized rats. SixtySprague Dawley rats of 12-week-old were divided into eightgroups: OVX (ovariectomized), OPBL (OPB 50mg/kg),OPBM (OPB100mg/kg), OPBH (OPB 200mg/kg), OPBL/CAL(OPBL+CAL), OPBM/CAL (OPBM+CAL), OPBH/CAL (OPBH+CAL) and CAL (Calcium citrate 88.33mg/kg+1α, 25-dihydroxy-vitamin D3 33.33IU/kg). Bone mineraldensity (BMD), bone mineral content (BMC), bone strengthindices and cortical thickness were analyzed by peripheralquantitative computerized tomography (pQCT). pQCTscanning showed that OVX induced a significant decreasein trabecular bone mineral density and bone mineralcontent in the proximal tibia (-36.4±2.4%, -21.8±12.7%).These decreases were significantly prevented by theadministration of OPBM and OPBM/CAL. Cortical BMDand BMC of tibia were slightly enhanced by OPB and OPB/CAL. However there was no significant difference betweenOVX and OPB, OPB/CAL treated group. Bone strengthindices and cortical thickness were not significantly different.Our results suggest that OPB and combined OPB/Calciumtherapy are effective in preventing the development of boneloss induced by ovariectomy in rats.

인터넷을 통한 남북통일교육에 대한 소고

김종세(Kim, Jong-se) 조선대학교 법학연구원 2009 法學論叢 Vol.16 No.1

2008년 현 정부 이전의 정부가 추진해 온 남북한의 화해협력정책은 교류협력의 발전을 위한 제도적 기초를 놓았고 동시에 평화위협을 제거하는 잠정적인 성과를 거두었다. 그리고 현 정부는 화해협력정책의 연장선상에서 한반도의 평화 증진과 남북의 공동번영을 통해 평화통일의 기반을 마련하는 평화번영정책을 추진하고 있다. 특히 2000년 6월과 2007년 10월 남북한 정상회담 이후 사회적 현상으로써 인터넷에 김정일을 형상화한 캐릭터가 돌아다니는 등 예전에는 상상하기 힘든일들이 대수롭지 않아지는 계기가 되었다. 당시 이러한 관심은 인터넷을 통해 다양한 형태로 나타나면서 하나의 문화 현상을 보이기도 하였다. 이제 우리는 과거 일방적인 통일에 대한 기대와 이에 따른 통일교육도 이제 새로운 전기를 마련해야 할 것으로 판단하는데, 아직까지도 우리 사회에서 통일문제에 대해 다양한 인식과 견해들이 표출되고있다.이러한 국민들의 의식을 하나로 통합하고자 통일교육의 새로운 방안으로 우리는 인터넷 활용을 적극적으로 추진할 필요가 있다. 통일교육의 새로운 방안인 인터넷의 활용은 대중이 직접 참여함으로써 프로그램 내용의 질적 변화와 방법적 변화의 효과를 가져다 줄 수 있을 것 이다. 사이버를 활용한 통일교육은 정보화 시대에 가장 적합한 교육으로 더욱 큰 효과를 가져다 줄 것으로 본다. 즉 인터넷을 통한 통일교육은 수요자 중심의 맞춤형 교육이므로 순기능적 측면을 최대한 이용 한다면 어떠한 정보 매체보다도 가장 활용도가 높고 오늘날 이 시대에 부합하는 교육방법 중의 하나일 것이다. The policy for the South-North Conciliation and Cooperation conducted since the launch of the former president Kim’s administration laid a solid foundation for the systematic development of further exchanges and cooperation between two Koreas, and yielded tangible results of eliminating threats to peace at the same time. In addition, the current Participatory Government is driving forward with the policy for peace and prosperity, which will establish a sound basis for the peaceful Unification by promoting peace and mutual prosperity on the Korean Peninsula, extended from the policy for the South-North Conciliation and Cooperation. In this regard, it is considered that a huge transition is under way for the existing Unification education of unilateral expectations for the Unification the past. Still, the Korean society is witnessing that a variety of views and opinions are emerging on the issue of Unification. It is natural, of course, that diverse opinions are shared by citizens in a free democracy. But it is surprising that there are many who question even the validity of the Unification. This paper aims to integrate people’s awareness about the Unification into unity, and carry out a new method for the Unification education, by making the best use of broadcasting and Internet. As part of new methods of the Unification education, the broadcasting media will serve as a catalyst to make qualitative and methodological changes for the education program by facilitating the direct participation by people. I understand that the web-based Unification education is the best form for education in a new era of informatization and telecommunication. As it is a customized education devoted for users, it is my view that it will be the most appropriate educational method with the highest level of exploitation rather than any other information media.

동진강 유역 비점오염원 정밀조사

원찬희,정팔진,김민정,조선영,김세훈,김종천 전북대학교 공학연구원 ( 구 전북대학교 공업기술연구소 ) 2002 工學硏究 Vol.33 No.-

Nonpoint source pollution(NSP) arises due to agriculture activity and it is quite an extensive and complicated problem in order to control and has received a great deal of concern during the recent years, whereas point source are known to originate from an estimated volume of contaminant discharged from a distinguishable source. Extensive research work have been conducted and presented in the past with regard to the various characteristics of watershed on Dong Jin River(DJR), however there are certain drawbacks of existing survey for determining important polluting sources, distribution features of pollutants and estimated load of the organic and nutrients from the creeks. Unfortunately, investigation for loadings originating due to agricultural drainage was not satisfactory, although the regional consideration for DJR across Kim Je Field(KJF) as an agricultural area receives a reasonable source point in the agri-pollution management. Therefore it was necessary to carry out a thorough investigation into the diffuse sources resulting, to form the pollution-developing estimation and to evaluate the output roperties and determining various factors in the generation of non-point pollution. Eventually, this research work would serve as an useful tool for the development of predictive pollution management for DJR. Non-point sources in the present work were classified as municipal non-treated sewage water discharged into the river, loadings through agricultural drainages in the dry/wet field and inadequate treatment of wastewater generated from livestocks. The entire duration of the research work was from December-2001 to July-2002. Site measurement were conducted during various season, in a dry season(December), in rainfall, in seed-sowing time and also collecting data from the rural public organizations related to water management was done and examined and examined during the mid of research work. Similarly, domestic wastewater loadings due to population was based on area unit, as City, Country, Up, Myon, Dong, Ri. The Dong Jin River watershed contains small three Creeks, KoBu(KB), DongJin(DJ, including JeongEup(JE) and ChilBo(CB), WonPyong(WP). It was further divided into 32 sub-watersheds which comprises of further 5,18,9 watersheds in the creeks respectively. The results obtained from research work are presented as follows. Animal productions have marked differences in the rate of pollutant loadings reported in the following sequence: DJ(only CE)>WP>CB>KB, in a case of Korean cow and milk cow. However, it was revealed that WP creek became significantly higher than any other livestocks. According to statistical data for land use, rice field(369.0㎢) and forest(378㎢) have much occupation prior to dry paddies(125.0㎢), residential land(32.0㎢) and others(5.0㎢). Especially, rice fields receives 2.5∼3 times than dry paddies in size.

황화수소 중독증 2례

김종구,이경종,이세휘,박재범 大韓産業醫學會 2000 대한직업환경의학회지 Vol.12 No.1

평택시에 위치한 펄프 회사에서 탱크 내부를 청소하고자 근로자가 탱크 속으로 들어가는 도중 의식을 잃었다. 펄프제지 과정에서 유기물질의 발효로 인하여 유해한 가스가 발생한다. 발생할 수 있는 가스의 종류에는 이산화탄소(CO₂), 일산화탄소(CO), 암모니아(NH₃), 황화수소(H₂S) 그리고 메틸 머캅탄(methyl mercaptans, CH₃SH) 등이 있다. 작업환경 측정전 이러한 가스들이 존재할 것으로 추정하였으나 실제적으로 황화수소와 일산화탄소만 검출되었을 뿐 암모니아와 메틸 머캅탄은 측정되지 않았다. 그런데 상기 환자들에 있어서 HbCO이 정상 범주이므로 일산화탄소의 중독은 배제할 수 있었다. 따라서 황화수소 중독에 의한 의식소실임을 알 수 있었다. Hydrogen sulfide poisoning is frequently encountered in the workplace. Two workers lost their consciousness In an underground tank at a factory producing paper. The tank contained liquid mixture of used paper, sodium oxygenate chloride (NaOCl), and sodium thiosulfate pentahydrate(Na₂S₂O₃.□H₂O). A worker(worker A; 36-year-old man) entered tank to remove sludge. When worker A lost his consciousness, worker B entered the tank to rescue worker A, however he lost consciousness inside the tank. We discuss in detail the clinical features of this condition. Hydrogen sulfide poisonings have occurred in industries involving petroleum refining, the manufacture of heavy water, tanning of hides, vulcanization of rubber, and the manufacture of rayon. And it is necessary to stress the health education for workers and managers in these industries.

고진공내의 데칸용매하에서 요오드화 iso-프로필이 니트로벤젠 및 톨루엔과의 착물형성에 관한 연구

김영철,김세경,임종완,구덕자 漢陽大學校 環境科學硏究所 1991 環境科學論文集 Vol.12 No.-

고진공내의 데칸용매하에서의 요오드화 iso-프로필의 용해도를 8, 15, 25℃에서 니트로벤젠과 톨루엔이 존재할 때와 존재하지 않을 때의 두 경우에 대하여 각각 측정하였다. 데칸용매내에 니트로벤젠과 톨루엔이 존재할 때 요오드화 iso-프로필의 용해도가 존재하지 않을 때 보다 더 크고, 톨루엔과 요오드화 iso-프로필과의 상호작용이 니트로벤젠과의 상호작용보다 더 강하게 작용한다는 것을 알 수 있었다. 그리고 니트로벤젠과 톨루엔이 데칸용매내에 존재할 때 요오드화 iso-프로필과 니트로벤젠 및 톨루엔이 각각 불안정한 Complex를 형성한다고 생각되어 이 Complex를 여러 경우의 비율로 가정하여 계산해 본 결과 1 : 1 Comples를 형성한다고 보는 경우의 평형상수 K값이 비교적 일정한 값을 나타내었다. 그러므로 1 : 1 Complex 즉 ??과 ??이 용매속에 형성됨을 알았다. 또한 이 Complex의 생성에 대한 엔탈피, 자유에너지 및 엔트로피의 변화도 산출하였다. The solubilities of iso-propyliodide in decane on high vacuum were measured at 8℃, 15℃ and 25℃ in the presence and absence of nitrobenzene and toluene. When nitrobenzene and toluene exist in system respectively, the solubilities of iso-propyliodide in the presence of nitrobenzene and toluene are greater than in the absence, and the interaction of iso-propyl iodide with toluene is stronger than with nitrobenzene. In the presence of nitrobenzene and toluene, it could be thought that iso-propyl iodide forms unstable complex with nitrobenzene and toluene. The complex was assumed in various ways and it was evaluated that the equilibrium constant K value was relatively constant under the assumption of 1 : 1 complex. Thus, 1 : 1 complexes, ??과 and ?? are formed in the solution. Also, the changes of enthalpy, free energy and entropy for the formation of the complex were calculated.

분산 객체 기반 실시간 오디오/비디오 스트림 서비스의 설계 및 구현

김종현,박세철 동의공업대학 1999 論文集 Vol.25 No.1

This paper present a design and implementation of a realtime audio/video stream service based on distributed objects. Our design abstracts software components concerning the processing of audio/video as distributed objects. And we separates the transmission path of control data and media data for efficient stream transfer. Our total system architecture composed of three component systems, called Storgae Server, Control Server and Client. So we can extend systems easily in distributed environments. As proof concept, we implement a prototype system using distributed objects which support realtime audio/video stream services.

熱刺戟 電流法에 依한 MOS酸化層內 移動性 陽이온의 擧動에 關한 考察

金種聲,崔世崑,姜星模 嶺南大學校 工業技術硏究所 1988 연구보고 Vol.16 No.1

TSIC(Thermally stimulated ionic current) method, based on the repeated measurements with various heating rates, has been used to investigate the kinetic behavior of mobile ions in the SiO₂layers of an Al-SiO₂-Si system. Experimental results have shown two current peaks at the temperature ranges of 80℃-120℃(A peak) and 400℃-450℃(B peak) respectively, which are caused by the release of Na+ ions and K+ ions trapped at the Al-SiO₂ interface and the Si-SiO₂ interface respectively, in a MOS structure. From the results, activation energies (E), attempt-to-escape frequencies (S) and the initial number of trapped ions(n。)are evaluated for each group by the various heating rate method. According to the values of E.S and n。, it is found that deeper traps are distributed in the Si-SiO₂ interface and that K+ions are trapped in deeper trap than Na+ ions. It is also found that the magnitude of the current peaks is increased while the tempratures showing those peaks are decreased, as the gate voltage is increased.

바이오 디젤유를 차량 적용 시 입자 배출가스 특성에 관한 연구

김세준,정민원,김병준,유종식,차경옥 明知大學校 産業技術硏究所 2007 産業技術硏究所論文集 Vol.26 No.-

In this study, diesel passenger vehicle were measured on. chassis dynamometer test bench. this base engine was investigated by number measurement. so the particulate matter and gaseous emission were measured each test vehicle, fuel, mode condition on chassis dynamometer test bench that using the apparatus recommended by PMP(Particle Measurement Program) A condensation particle counter (CPC) system was applied to measure the particle number and size concentration of diesel exhaust particles at the end of dilution tunnel along the NEDC vehicle test mode. The effects of Bio diesel fuel on the Diesel nano particle number and size distribution was investigated in this study.

경주지역 여고생의 초경과 체성장간의 관계

김준섭,권오구,박진석,오종수,박정현,박제식,안세한,이용환,서정호,신태섭,최영배,김덕수,이관,박수경 東國大學校醫學硏究所 2002 東國醫學 Vol.9 No.1

본 연구는 경주지역 1개 고등학교 3학년 여고생을 대상으로 초경 시작 전인 초등학교 4학년부터 고등학교 2학년까지의 키, 몸무게, 가슴둘레 수치와 초경 연령을 파악하여 여성의 초경이 빠를수록 체성장 속도의 변화가 있을 것이라는 가설을 기초로 두 요인간의 관련성을 파악하고자 시행되었다. 경주시 1개 여자고등학교 3학년생 총 317명에 대해 ㅊ경 나이, 초경시 심리 상태, 초경이 시작되었을 때의 상담 여부와 상담하였던 사람, 부모 신장과 초경전후의 식사 규칙성, 다이어트 경험, 수면시간, 스트레스, 음주/흡연 여부, 질병력 등에 대한 설문 조사를 시행하였고, 초등학교 4학년부터 고등학교 2학년까지의 키, 몸무게, 가슴둘레에 대한 정보는 건강기록부에서 확보하였다. 상기 대상자 중 건강기록부가 분실된 39명, 초경나이에 대해 응답하지 않았던 29명 및 결석 등으로 조사를 하지 못하였던 42명을 제외한 조사 대상자는 206명으로 선정하였다. 대상자들의 초경연령 평균값(Mean±SD)은 13.0±1.11이었고, 초등학교 4학년부터 고등학교 2학년까지의 초경 이후 신장 성장률은 감소하였으며, 초경연령이 빠른 군이 초등학교 때는 신장에 있어서 우위를 차지하나 고등학교에 오면서 신장은 비슷한 수준이 되었다. 초경후 1-2년 사이에 체중과 흉위의 증가율은 감소하였고, 초경연령이 빠른 군이 초등학교와 고등학교 사이에 체중과 흉위에서 모두 우위를 차지하였다. 본 연구의 결과는, 흔히 이차 성징의 시작 시점 혹은 사춘기의 시작 시점으로 보고있는 초경 연령이 청소년기의 성장과 밀접한 관련성이 있고, 특히 체중과 흉위의 성장 속도와 밀접한 관련성이 있음을 시사한다. To understand the onset of menarche in relation to changes in physical growth that take place during female adolescence, especially the changes in height and weight velocity. The 207 senior in one women high school of Kyongju were investigated in April 3 to 8, 2001. We collected the information, relation in the age at menarche, height & weight of parents, regularity of eating, and obesity diet, duration of sleeping, sickness & stress near age at menarche, by self-recording. The status of height, weight & chest circumference between the 4th grade of primary school and the junior of high school was collected by individual Health Record. The results were followed; The average age at menarche was 12.95±1.11 years old and the most frequent age of menarche is 13 years. After menarche, the velocity of height, weight and chest circumference were decreased. The most rapid group of menarche hold dominant position in height during elementary school. As time passed, they dont hold dominant position in height. The most rapid group of menarche get an advantage in the weight and the girth of chest after elementary school. The height of subjects is directly proportional to the height of their parents. These results suggest that the starting age at menestuation can be closely associated with physical growth and development.