철봉 몸펴 앞돌아 물구나무서기 동작의 운동학적 분석

이종락,김혜영,김공주,김대근 한국운동역학회 2000 한국운동역학회지 Vol.10 No.1

국제 체조 연맹이 정하는 자유 종목에서는 채점 규정상 B난도에 해당된다. 국가 대표 선수 3명을 대상으로 경기력 향상을 위한 기초 자료를 제공하고자 철봉 몸펴 앞돌아 물구나무서기 동작에 대한 보다 정확한 과정을 모색하고 좀더 발전적이고 변형된 기술 습득을 위한 운동학적 변인을 분석하였다. 1. 제 2 구간에서는 신체중심의 수직속도를 증가시키고 Bar에 가깝게 신체를 회전시킴으로 안정된 자세 동작을 수행하는 것이 바람직한 것으로 나타났다. 2. 제 3 구간에서는 신체중심의 수평속도를 빠르게 하고 견관절, 슬관절을 굴곡시켜 회전력을 증가시키는 것이 중요한 요인으로 나타났다. 3. 제 5 구간에서는 수평위치를 회전축인 Bar로부터 회전반경의 길이를 길게 하여 회전력을 상승시키고 견관절의 굴곡을 크게하고 신체를 layout시켜 다음 Swing동작의 준비를 여유있게 하는 것이 중요한 것으로 나타났다. 이상을 종합해보면 철봉 몸펴 앞돌아 물구나무서기 연기 동작을 수행하는데 제 2 구간에서 신체중심의 수직속도를 증가시키고 제 3구간에서 회전반경을 짧게하여 회전력을 높이고 제 5 구간에서 수직상승운동을 위치에너지로 바꾸는 것이 동작을 성공적으로 연기할 수 있는 중요한 요인임을 알 수 있다. This study has researched on the motion of ´the free hip circle forward to handstand motion on the horizontal bar´ as performed by the three national representative champion as its object for the purpose to present fundamental data for the improvement of competitiveness, in such a manner as to seek a more accurate progress and a more evolved and transformed skill to be attained, based on the kinematic factors as analysed below. 1. At phase 1, it was shown to be desirable to take a short rotation radius with enough room when shortening composite location of physical center, slowing down both in a little flexion. 2. It was also desirable at phase 2 that the vertical speed of the physical center should be increased; motion should be performed in a stable posture by shortening the front of moment, rotating the body closely to the bar when doing down rotation. 3. Phase 2 has revealed it to be an important factor to increase the rotation force by quickening both the vertical and horizontal speeds of the physical center and flexing the shoulders and knees. 4. Phase 4 indicated the rotation force should be raised and the vertical speed of vertical uprising should be used by flexing the shoulders and making the physical center close to the bar from the rotation axis. 5. It was important, as phase 5, that the composite location should shorten the length of rotation radius from the bar, which is the rotation axis so as to accelerate the rotation force and enlarge the flexion of the shoulders, lay out the body, and then prepare for the swinging motion in good allowance. To summarize the forerunning aspects, in the performance motion of the free hip circle forward to handstand motion on the horizontal bar for a more advanced, transformed, improved skill, motion, and competitive force, it was learned to be an important factor that the body-centered vertical speed should be increased at phase 1 and 2; the rotation force should be accelerated by reducing the rotation radius at phase 3; and the vertical uprising motion should be changed into the location energy at phase 5. These appeared as important factors for successful performance.

600N급 강을 적용한 기둥-보 용접접합부의 인성평가

이철제,박양희,김성배,김종락 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)

This paper aimed to evaluate the toughness of the 600N grade high strength column to beam steel welded joint which subjected to cyclic loading. The specimens were designed as a unit frame of tall building's middle-stores, and cross type weld connection. SA440 were used for column and SM490 for beam. Six tests were carried out. EBS (Enlarged Beam System) specimens were considered to be superior structural strength, ductility capacity. Beam to column connection using EBS showed higher strength and toughness than the basic shape.

600N급 TMC후판강재를 적용한 기둥과 보 용접접합부의 인성평가

이철제,김종락,김종성,최문식 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

This paper aimed to evaluate the toughness of the 600N class TMC column to beam steel welded joint which subjected to cyclic loading. The specimens were designed as a unit frame of tall building's middle-storeys, and cross type weld connection, 600N class TMC steel were used for column and SM490 for beam. Two tests were carried out. Two specimens were considered to have the same structural property and ductile capacity. The specimen adapted scallop type showed the same toughness value as the speciment used non-scallop type.

CANDU 사용후핵연료 수송용기 방사선차폐 영향평가

이홍영,정성환,윤정현,강희영,최종락 대한방사선 방어학회 1993 방사선방어학회지 Vol.18 No.2

중수로형 원자로에서 방출되는 사용후핵연료 다발을 안전하게 운반할 목적으로 CANDU 수송용기에 대한 방사선차폐해석을 수행하였다. 핵연료의 연소도는 7,800MWD/MTU, 냉각기간은 5년으로 하여 ORIGEN2 코드로 방사선원을 구하고 이것으로 핵연료 378다발을 운반할 수 있는 수송용기의 차폐체 두께변화에 따른 선량율 영향을 비교하였다. 계산은 ANISN과 DOT4.2 코드를 사용하였으며, 해석결과 최적의 차폐구조를 선정하였으며, 또한 IAEA 및 국내원자력법의 수송법규에 명시된 정상수송 및 가상사고조건에 따른 차폐해석을 수행하여 CANDU 수송용기의 안전성을 입증하였다. A shielding analysis of the shipping cask for transporting the CANDU spent fuel bundles has been studied. Radiation source term has been calculated on spent fuel with burnup of 7,800 MWD/MTU and 5 years cooling time by ORIGEN2 code. The shielding calculation for the cask capable of transporting 378 bundles of CANDU spent fuel has been made by use of 1-D ANISN and 2-D DOT 4.2 codes. As result of analysis, the optimum shield thickness of cask was obtained. And it is proved that the safety in radiation shielding under normal transport and hypothetical accident conditions is confirmed to satisfy the allowable values specified in IAEA Safety Series No. 6 and the Korean Atomic Law.

공동주택단지의 개발실태와 도시경관 관리방안 : 진주시를 중심으로

安在洛,李鍾明 慶尙大學校生産技術硏究所 1999 生産技術硏究所論文集 Vol.15 No.-

Apartment houses commonly have problems of view, disharmony with nature and defilade by itself etc. First of all, to improve these problems, the regulations were considered differently according to the location of the apartment houses, as it were, riverside, hill and plain. This is due to the effects that are different from the location of the apartment house. The result of this study are summarized as follows ; 1. The related laws and regulations are too weak to manage apartment houses in view of townscape. So, it may cause that the smaller the scale of site, the higher the building-to-land ratio and floor area ratio. 2. The important factors of apartment houses, to match with townscape, are not only the height and facade area, but also harmony with near sites and visual opening. 3. We should prevent an uniform appearance by means of the variable applications of guidelines, according to the location of apartment houses. 4. The efficient method of the managing townscape is, generally, to reduce floor area ratio of apartment houses.

大規摸 染色工業團地 廢水의 綜合處理에 關하여

曺秉樂,李種達,朴永圭,李哲熙,李武康 嶺南大學校 環境問題硏究所 1981 環境硏究 Vol.1 No.1

In this study, a method of treating waste water from the Bisan Dyeing Industry complex has been developed. This process will be used as a model for treating waste water from the future large-scale dyeing industy complex. If the concentrated dyeing waste water may be seperated from the scouring waste water the C-2 process is the most economical to treat the concentrated dyeing waste water first by the coagulation precipitation process and the scouring waste water mixed with the effluent of coagulation precipitaion next by the activated sludge process. When it is impossible to seperate the concentrated dyeing waste water from scouring water for the Biasn Dyeing Industry complex, the B-2 process treating by the activated sludge process following coagulation precipitation with alum can be applied.

中部地方에 있어서 主要母巖 및 立地環境이 잣나무 生長에 미치는 影響

金鎭彧,李鍾樂,鄭炫培 慶熙大學校 1984 論文集 Vol.13 No.-

This study investigated the relationships between growth of Korean white pine (Pinus koraiensis), physical and chemical soil factors, and other environmental factors. 1. The growth of Korean White Pine is best on soils of granite-gneiss, parent material. The order of ranking is granite-gneiss crystalline gneiss, granite, and limestone. 2. No statistically significant relationships were found between tree growth, aspect, topographic gradient, and soil moisture content. 3. The relationship between elevation and tree height and volume growth is statistically significant. The contribution ratios of elevation to tree height, diameter ( D.B.H.), and volume growth are, respectively, 18.3%, 5.4%, and 17.5% 4. The relationship between soil texture and growth was significant only for tree diameter (D.B.H.), the contribution ratio of soil texture to D.B.H. growth being 8.4% 5. Height growth on soils of granite or limestone is positively correlated with their organic matter content. 6. Tree growth increases with increasing nitrogen content of soils of limestone. 7. For granitic soils, tree growth is negatively correlated with the content of available phosphorus.

요중 N-acetyl-β-D-glucosaminidase 활성치를 이용한 신발제조업 근로자들의 만성 신기능 장애 평가

김돈균,이수일,조병만,이지호,이후락,박종욱 大韓産業醫學會 1993 대한직업환경의학회지 Vol.5 No.1

부산지역 신발제조업 근로자중 유기용제에 폭로되고 있는 150명을 폭로군으로 하고, 일반사무직 근로자 53명을 대조군으로 하여 인적특성, 직업에 대한 만족도, 자각증상, 작업과 관련된 스트레스의 정도를 조사하고, 유기용제 폭로량의 지표가 되는 요중 마뇨산 및 근로자 건강진단 항목인 혈중 요소질소, 혈청 크레아티닌 그리고 조기 신기능 장애의 지표로 알려진 요중 NAG 활성치를 측정하여 얻은 바를 아래와 같이 요약한다. 1. 요중 NAG 활성치는 폭로군에서 4.63U/g creatinine, 대조군에서 2.95U/g creatinine로 폭로군에서 높게 측정되었고(p<0.05), 유기용제 폭로에 의한 신기능 변화에 민감한 결과를 보였다. 2. 설문조사에서 직업에 대한 불만족, 이직을 원하는 경우, 건강에 대한 염려, 직업과 관련된 스트레스 및 유기용제 폭로와 관련된 증상호소가 대조군에 비해 폭로군에서 유의하게 증가되어 있어(p<0.05), 유기용제에 폭로되고 있는 신발제조업 근로자들의 보건관리는 산업보건학적 측면에서 매우 중요한 것으로 나타났다. 3. 폭로군중 근무기간 5년 이상인 대상자에서 요중 NAG 활성치는 5.92U/g creatinine, 근무기간 5년 미만인 경우 4.34U/g creatinine으로, 유기용제 폭로 기간이 길어짐에 따라 요중 NAG활성치는 통계학적으로 유의하게 증가되어 있었다(p<0.05). 4. 요중 NAG활성치는 근무기간을 가중한 톨루엔 총 폭로량과 유의한 정의 상관관계를 보여(p<0.05), 용량-반응관계를 보여 주었다. 이상의 결과에서, 복합유기용제에 만성적으로 폭로되는 근로자들에 공통적으로 발생할 수 있는 조기 신기능 장애를 감시하기 위하여, 요중 NAG활성치를 측정한 자료를 이용하면 유기용제 폭로 근로자들의 보건관리를 위하여 자료를 제공할 수 있을 것으로 생각된다. Personal characteristics, degree of satisfaction for work, subjective symptoms, and stress related to working condition were investigated from 150 workers exposed to organic solvents in shoe factories and 53 official workers in Pusan area, and urinary hippuric acid concentration which represented the amount of exposed organic solvents, BUN and serum creatinine which were renal function tests for worker's health examination and urinary N-acetyl-β-D-glucosaminidase activity were measured. The results obtained were summarized as follows. 1. The mean value of urinary NAG activity of exposed group was higher than that of control group(p<0.01), and subjects whose NAG activities were over refrence range in exposed group were far more than in control group(p<0.05), therefore urinary NAG activity was a sensitive test for the change of renal function due to exposure of organic solvents. 2. Unsatisfaction for occupation, want to change occupation, worry about health, stress related to job and symptoms related to exposure of organic solvents investigated by questionnaire were higher in exposed group than in control group, therefore the health management for workers exposed to organic solvents in shoe factories was important in the viewpoint of occupational medicine. 3. The mean value of urinary NAG activity in the subjects whose working duration were over 5 years was higher than in the subjects whose working duration were over 5 years was higher than in the subjects whose working duration were under 5 years, therefore the longer exposured duration was, the higher urinary NAG activity was. 4. Urinary NAG activity had positive correlation with time weighted amount of total toluene exposure therefore dose-response relationship was suspected. As above results, it will be very useful to apply the data of urinary NAG activity to the health management of workers exposed to orgaic solvents in order to monitoring of early renal dysfunction which was common in the workers chornically exposed to mixed organic solvents.

바코드 자동부착 시스템을 이용한 생산정보의 효율적인 관리

허성관,박종락,임승환,정종태 대한설비관리학회 2004 대한설비관리학회지 Vol.9 No.1

On this thesis, We studied on effective management of manufacturing information using auto bar code attachment system. Nowdays, Management Information System is essential factor to manage a company. This paper used bar code system to obtain data and dealing with data. And, In this paper, We proposed the method of development about auto bar code label attachment system for manufacturing process. we show the way of stepping motor control, bar code printer and

高校 物理敎育에 對한 探究學習의 評價模型定立과 評價紙 開發

奇宇恒,崔宗洛,朴奉斗,李原鎭 경북대학교 과학교육연구소 1983 科學敎育硏究誌 Vol.7 No.-

Recently experimental scientific problem solving skills and scientific attitude have been emphasized on the science education. The method of evaluation of the skill and the attitude, however, has not been much introduces to the science teachers. In this paper the domains, the objectives and the methods of evaluation of physics in high school were discussed related with Piagetian formal operational pattern. The objectives of knowledge and comprehension were divided into six parts according to the Piagetian logical thinking pattern. The objectives of the problem solving skills however were divided into twenty parts. Related with the scientific attitues, the cognitive (analytical and empirical), the value (judgement, commending) and the attitude (emotional response, personal likes) were also discussed in this paper.