에어로빅스 운동시 부상 유발 동작의 운동 역학적 분석

정철수,신인식,현무성,배성제,김복영,이기청 한국운동역학회 1995 한국운동역학회지 Vol.5 No.1

One of the reason that the aerobic dance is popular for korean women is that it is considered as a moderate aerobic exercise. However, high rate of aerobic dance related injuries have been reported among the participants. The purpose of this study was to estimate the impulsive load to the body while performing certain aerobic dance movement. Based on the preliminary questionairs on aerobic dance injury for 210 replyees, two aerobic dance movements including Run and High Kick were identified as high injury induced movements. The impulsive loads during aerobic dance estimated were joint angular acceleration and the vertical ground reaction force. The joint angular acceleration was determined using a 3-D cinematography technique, and the ground reaction force was measured with using an AMTI force platform system. It was founded that : the peak vertical ground reaction force 1738.7±171.2N, 1990.9±134.9N for Run, High Kick respectively. The peak vertical ground reaction force during High kick movement reached 3.7 body weight, which exceeded 3 body weight of force that can be experienced during jogging. These results indicates that although the aerobic dance movements look moderate means of exercise, certain movement ca produce highly impulsive look to the body and can aggravate injury when the movement is, kept repeated faster than the speed of healing process.

勤勞者의 解雇와 解雇制限

鄭寄南,金權執,曺明鉉 충남대학교 법률행정연구소 1989 논문집 Vol.17 No.-

Nuss 방법에 의한 소아 오목가슴 수술 후 정맥 통증자가조절법을 사용한 Fentanyl 과 Fentanyl-Ketorolac의 진통효과 비교

안기량,서은정,김천숙,강규식,유시현,정진헌,정지원 순천향의학연구소 2006 Journal of Soonchunhyang Medical Science Vol.12 No.2

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産業發展과 環境汚染에 관한 經濟學的 分析

鄭丙壽,鄭賢湜,金基台,金有培 成均館大學校 韓國産業硏究所 1979 韓國經濟 Vol.7 No.-

관절염 환자의 실태와 관련요인에 대한 분석적 연구

정승기,남철현,신두만,양숙희,김기열,이미경,문기내 대한보건협회 2002 대한보건연구 Vol.28 No.3

This study was conducted to examine the condition of patients with arthritis and its related factors. Data were collected from 100 people who suffered from arthritis in Seoul. Busan, Daegu, Daejun, Junjoo, and pohang from April 2, 2000 to July 31, 2000. The results of this study are summarized as follows : 1. 6L0% of the subjects were female. The incidence rate of arthritis was higher in the higher age group, lower educated group, and thinner group. In case of male, the incidence rate was higher in the groups of single, residents in big cities, and technicians. In case of female, it was higher in the groups of the married, residents in towns or villages, and housewives. 2. According to the parts of arthritis, knee joint covered 67.4% and backspine joint covered 9.0%. The incidence rate of arthritis was higher in the groups of forties, housewives, single, irreligious people, residents in towns and villages, primary school graduates, thin people, and walk exercisers. 3. The arthritis patients felt pain most when they stood up (31.5%). According to the time when they felt pain most, the time when they were active during daytime was 31.5% and nighttime was 29.8%. When they got up in the morning was 22.4%, while 10.9% felt pain all cay long. 4. they had arthralgia knees and cramp in crook of the knees (21.8%). Their knees ticked when they moved (21.1%). The had to rest hands on anyplace when they stood up (18.7%) and they could not completely unfold their knees. 5. The medical institutions which diagnosed them showed significant difference in the variables of sex, age, marital status, religion, place in residence, education level, economic status, obesity level, exercise, parts of arthritis, and posture of feeling pain. from above results, it can be concluded that it is necessary to develop appropriate medical treatment on the basis of the respondents' socio-democraphic characteristics, pain parts, period of having a pain, satisfaction level with treatment and its related factors. Therefore, related professionals and organizations must develop education program for prevention of arthritis in order to educate them.

莖頂培養 천궁유묘의 器內발근과 포장정식기별 根莖生育

정재동,이현숙,김창길 慶北大學校農業科學技術硏究所 1997 慶北大農學誌 Vol.15 No.-

주요 藥用作物中의 하나로 울릉도와 영양등 경북 북부지역에서 많이 재배되고 있는 일천궁의 種根生産을 목적으로 莖頂培養 幼苗에 있어서 단기간내의 器內發根 배지구명과 포장정식 시기에 따른 지상부 및 근경생육을 알아보기 위하여 시험한 결과를 요약하면 다음과 같다. 莖頂培養을 통해 생산된 유묘의 효과적인 發根培地는 IBA 1.0 mg/L와 BA 0.05 mg/L를 혼용처리한 것이 배양 30일 후 81%가 발근하여 가장 좋았으며 根數가 9개 이상인 배양묘를 기외이식하고 75% 차광하에 두었을때 생존율이 67%로 높았다. 포장 정식시기를 4月 20日, 5月 5日, 6月 10日, 7月 5日로 하여 정식하였을 때 5月 5日 정식한 幼苗가 生存率 72%, 초장 33cm, 줄기수 47개로 지상부 생육이 가장 좋았고, 지하부의 근경생육은 5월 5일로 정수록 根莖形成率은 높은 편이었으나 根莖數와 무게는 다소 적었다. This studies were conducted to improve the root formation of plantlet derived from shoot tip culture and to evaluate the optium transplanting date of Cnidium officinale Makino in field. The rooting rate of shoot-tip derived plantlets was 81% on media containing 1.0 mg/L IBA and 0.05 mg/L BA within 30 days after culture. Upon transfer into potting soil, the seedling grown well under 75% shading. Optimal transplanting date on taking roots and rhizome growth was May 5 in field.

진화 알고리듬을 위한 객체지향 모델링과 클래스 라이브러리 구현

정호연,이수연,곽재승,김용주,박기태,현철주 한국경영과학회 2000 經營 科學 Vol.17 No.2

In evolutionary algorithm, there exist various models for the evolution of the population with respect to schemes and strategies for reproduction, in the application of the algorithm to a specific problem, one model suitable to the problem is to be properly chosen and a program expert or a software is needed to help implement and test a designed algorithm. In this study, object oriented modeling and the class library for simple evolutionary algorithms(SEA) with one population is developed. The library proposed here can be used as a generalized tool for solving problems in a wide range of domains.

돼지정액으로부터 오염미생물의 분리 및 항생제감수성

정기화,이현택,유차열,이상원 진주산업대학교 산업과학기술연구소 2007 산업과학기술연구소보 Vol.- No.14

4개소의 인공수정센터로부터 돼지정액을 제공 받아 돼지정액 중에 서식 중인 미생물을 순수분리하고, 그 미생물에 대한 항생제 감수성 검토를 행하였다. 2006년 7월과 9월에 채취한 시료의 원액에서 각각 3.6×10^(2)~2.6×10^(9) 및 3.8×10^(2)~5.5×10^(3)의 콜로니가 나타났으며, 희석정액의 보존일 수가 길어질수록 총균수가 많은 것으로 나타났다. 돼지정액 중에서 검출된 미생물로는 Bacillus sp., Staphylococcus sp. 및 E. coli와 같은 세균이 대부분이었으며, 그 이외에 Pseudomonas sp. 및 Norcardia sp. 등의 미생물들이 검출되었다. 이들 미생물에 대한 여러 종류의 항생제 감수성을 검토한 결과 enrofloxacin과 neomycin은 분리한 모든 미생물에 대하여 감수성을 나타내었으며, cefoxitin과 norfloxacin은 Norcardia sp.을 제외한 다른 미생물에 감수성을 나타내었다. Bacterial contaminants from boar semen, which was provided by the different 4 Artificial Insemination Centers in Korea, were isolated and investigated for antibiotic sensitivity. Bacterial flora were 3.6 × 10^(2) ~ 2.6 × 10^(9) CFU/mL and 3.8 × 10^(2) ~ 5.5× 10^(9) CFU/mL from raw boar semen collected from the period June ~ July to August ~ September 2006, respectively. Total viable cells of diluted boar semen were increased according to storage period. Isolated microbes were mostly detected as bacterial cells such as Bacillus sp., Staphylococcus sp. and Escherichia coli, followed by Pseudomonas sp. and Norcardia sp. All the microbes isolated from boar semen were sensitive to antibiotic enrofloxacin and neomycin. Norcardia sp. was only resistant and the others cells were sensitive to antibiotic cefoxitin and norfloxacin.

乙淑島 (鹽害砂土)의 大豆裁培 : 堆肥 및 加利質 肥料의 施用效果를 中心으로

金正基,孫賢秀 東亞大學校 1968 東亞論叢 Vol.5 No.-

砂土, 鹽害地인 乙淑島에 大豆를 栽培한 結果를 要約하면 다음과 같다. 1. 收量에 있어서는 A, B 및 C 等 要因이 各各 影響했으며, 卽 堆肥施用 效果와 加里質 肥料의 增量施用 效果와 그리고 加里質肥料의 追肥效果 2. 單位面積當 乾物重과 發芽率 等은 共히 A, B 및 AB等 要因(卽 堆肥施用과 加里質肥料의 量的 施用과 그리고 上記 두 要因의 相互作用)에 크게 影響을 받았으며, 3. 結局 收量을 支配하는 A(堆肥施用 效果)要因과 B(K2O 增量 施用 效果)要因이 單位面積當 乾物重과 發芽率에도 아울러 미치는 影響이 뚜렸했다. 4. 栽培前後의 土壤 環境 變化이다. 큰 效果가 없었다. The follwing were obained as results of soybean growing in Woolsuk Island of saline sand soil. 1) Factors A, B, and C(applying effect of compost, applying effect of potash with increased mass, and partial application effect of potash) are positively effected ot soybean yield. 2) Yield of dry matter and germination ratio were also responsed greatly by the factors A, B, and AB (applying effect of comost, applying effect of potash with increased mass, and their linear effect). 3) Factors A and B increased the yield of soybean also effeced to the yield of dry matter and germination ratio. 4) No great changes on soil condtions before and after the exams were convinced.

급성 신부전의 원인과 위험인자 및 사망률에 관한 임상적 고찰

김기현,정원태,김성은 동아대학교의과대학 1997 동아의대학술지 Vol.9 No.1