유도경기서 공격 유형이 경기력에 미치는 영향에 관한 연구

정현택,전승훈,이형만 韓國體育大學校 1992 論文集 Vol.15 No.-

The purpose of this study was analyze the techniques which were most frequently used during the contests by Korean national representative Judo players in 1990. The subjects were 51 athlete sand the contests analyzed in the study were 75 games. The analysis was done and compared among weight classes of Judo. The results of the study can be summarized as the followings: 1. Three was not much difference in number of attack techniques among weight classes, however, 71kg class showed the highest success rate of 25% through the attack techniques. 2. Athletes used B2 style of grasp techniques most frequently(45% of the whole athletes). However, the C1 style showed the highest success rate of 27%. The Seoi-nage of Te-waza was not most frequently used among the all techniques(27%). the O-soto-gari, Uchi-mata, Ko-uchi-gari, and O-uchi-gari of Ashi-wasa showed higher frequencies among the techniques used in the contests. In the ratre if winning score bygrasp style, C1 style showed 8% and B2 style showed 4% through Ippon; B1 and C1 style showed 6% and C2 style showed 4% through Yuko; C1 style showed 13% and B1 style showed 8% through Koka 3. Seoi-nage was most frequently used in B1, B2, and C1 grasp styles. Especially, B1 style showed the frequencies of technique uses in the order of Seoi-nage, Ouchi-gari, and Morote-gari, while B2 style showed those in the order of Seoi-nage, Uchi-mate Osoto-gari, while B2 style showed those in the order of Seoi-nage, Uchi-mate, Osoto-gari, while B2 style showed those in the order of Seoi-nage, Uchi-mate, Osoto-gari, Ouchi-gari. And also, C1 style showed the frequencies of technique uses in the order of Seoi-nage, Uchi-mate, Ouchi-gari, and Kouchi-gari, while C2 style showed those in the order of Uchi-mate, Seoi-nage, Kouchi-gari. 4. There was not much differences in the frequencies of technique use among weight classes, however, the lower classes showed more diversity in techniques used. 5. Tai-otoshi showed the highest rate in winning the score and Osoto-gari, Seoi-nage, Ouchi-gari, and Kouchi-gari showed the higher winning score rates following the Tai-otoshi.

이동통신 멀티미디어 데이터서비스의 트래픽 특성 모델링 및 성능분석

정용주,백천현,김후곤,최택진,양원석,황흥석 한국경영과학회 2003 한국경영과학회지 Vol.28 No.2

The aim of this study is to identify the data traffic capacity of 3G mobile communication networks, especially of cdma2000-1X networks. Three-layered ON/OFF traffic model is used to describe the dynamics of data traffics and the process of data transmission such as packet scheduling. We construct a simulator fully incorporating packet handling process of cdma2000-1X data network as well as three-layered ON/OFF traffic model describing the behavior of source data traffics. To get influence of traffic parameters on performance measures, the extensive simulations were performed for several data sets which are obtained from real trace data or previous studies. The experimental results show that the engineered throughput satisfying QoS criteria is approximately 20% of total capacity. Finally, some proposals to improve the system capacity are followed.

진양호 유입수의 홍수기 오염부하 및 수질특성

김영충,서규태,문병현,이택순 7개 국립대학교 환경연구 논문집 공동발행 위원회 2001 환경연구논문집 Vol.1 No.1

This study is to evaluate the characteristics of pollution load into lake Jinyang by flooding. Water quality of Kyongho and Duckcheon river, which are major tributary of lake Jinyang, was analyzed during rainy season. Increased pollution load was observed at initial stage of rainfall. This was caused by pollutants washed out of non-point sources at initial run off. It was considerable that much higher pollution load was measured during the flood than the value calculated using loading rate.

솔잎발효추출물의 효소적 저해활성 및 아질산염 소거작용

홍택근,이용림,임무현,정낙현 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2004 한국식품저장유통학회지 Vol.11 No.1

솔잎의 기능성에 관한 연구를 위하여 솔잎발효추출물(PFE)과 에탄올추출물(PE 80, PE 50)로 효소적 저해활성과 아질산염 소거작용에 대하여 연구하였다. Tyrosinase의 저해효과는 솔잎발효 추출물인 PFE가 솔잎 에탄올 추출물 PE 80과 PE 50에 비해 약 5∼38%정도 저해활성 효과가 높게 나타났다. XOase 저해효과는 PFE가 62.77%, PE 80이 64.90%, PE 50이 55.91%의 저해율을 나타내였으며 ACE저해효과는 PFE가 78.02%, PE 80이 69.82%, PE 50이 21.75%의 순으로 솔잎발효 추출물인 PFE가 가장 높은 저해효과를 나타내었다. 아질산염 소거작용은 솔잎추출물 모두 pH 3.0이하에서 높은 분해능력을 나타내였다. 유기산 함량 분석 결과, PFE, PE 80, PE 50의 세 시료 모두 항산화작용에 관여하는 ascorbi acid가 가장 많이 함유되어 있었으며, 시료별 ascorbic acid의 함량은 솔잎 발효추출물인 PFE가 가장 많이 함유되어 있는 것으로 나타났다. Effects on the physiological functionality, such as tyrosinase, xanthine oxidase, angiotensin converting enzyme and Nitrite scavenging ability were also observed by pine needle fermentation extract(PFE) and the difference in the consistency of pine needle ethanol extracts(PE 80, PE 50) was found. In the inhibition effect on tyrosinase, PFEP showed 5-38% higher than that of PE 80 and PE 50. In the inhibition on XOase, PFE, PE 80 and PE 50 showed 62.77%, 64.390%, 55.91% respectively. In the inhibition effect on ACE, PFE, PE 80 and PE 50 showed 78.02%, 69.82% and 21.75% respectively. Among these, PFE showed the highest ACE inhibition effect. In the inhibition effect on nitrite scavenging anility, the pine needle extracts showed a high effect in pH 3.0. As the result of the research using HPLC for the organic and, all the samples(PFE, PE 80, PE 50) showed higher contents of the ascorbic acid concerned with the effect of the antioxidative. PFE showed the highest contents of the ascorbic acid.

소아의 상완골 원위부 과간 골절

이우석,정환용,김우식,김용찬,전택수,김남현,김규태 대한골절학회 2004 대한골절학회지 Vol.17 No.4

상완골 원위부 과간 골절은 소아에서는 매우 드물게 발생되는 골절로 대부분 주관절의 굴곡상태로 주관절 후방부에 직접적인 충격에 의해 발생하는 것으로 보고되고 있다. 전위가 없거나 경미한 경우 도수적 정복술 혹은 도수적 정복술 후 경피적 핀고정술을 시행하며, 전위가 심한 골절이거나 도수적 정복술이 불가능한 경우 관혈적 정복술 후 핀고정술을 시행하는 것으로 알려져 있다. 저자들은 전위된 상완골 원위부 과간 골절 환아 2예에서 각각 도수적 정복술과 관혈적 정복술 후 K 강선 고정술을 시행하여 만족한 결과를 얻었기에 보고하는 바이다. Intercondylar fractures of the distal humerus are very rare in children. The pattern of the fracture would suggest that the mechanism of injury involves a fall directly on the flexed elbow. Most agree that the undisplaced fracture can be managed conservatively. With increasing displacement and comminution, the opinions tend to differ. We suggest that closed reduction with percutaneous K wire pinning and open reduction with percutaneous K wire pinning offer a satisfactory methods by which to treat displaced intercondylar fracture in children.

CaO-SiO₂계 수열반응의 속도론적 고찰

이희수,정윤중,신현택 연세대학교 대학원 1980 延世論叢 Vol.17 No.1

For the study of kinetics and the rate determining stage on the hydrothermal reaction between CaO-SiO2 and CaO-SiO2-slag systems, the mole ratio of CaO/SiO2 was made to be 0.8 and slag was combined with same weight percentage of CaO/SiO2 mixture. For this study, discs were piled up one on another compactly for intercepted the steam penetration, exept one direction, and had autoclave treatment for 2,6, 10, 14 and 24 hrs. at reaction temperature 80,152 and 181℃. Contents of free lime and free silica were detected by quantitative analysis for the reaction conversion. And from this result reaction constant and activation energy were calculated. It was found that the rate determining stages are changed from phase boundary controlled reaction to diffusion controlled reaction in process of 10 hrs. at reaction temperature 80 and 152℃ for CaO-SiO2 system and at 152 and 181℃ for CaO-SiO2-slag system. And also was found that activation energy for CaO-SiO2 system is 6.6 kcal/mole and for CaO- SiO2 - slag system is 12.2kca1/mole.

유색미에 관한 연구 : Ⅲ. 유색미 유망계통에 대한 주요 생육 특성

김광수,최윤표,김선택,최현구,정종태,김보경,유지홍,이희봉 충남대학교 농업과학연구소 2007 농업과학연구 Vol.34 No.2

국내외 유색미 수집종을 돌연변이원에 의해 유기된 우수 계통과 수집종간 상호교배에 의해 선발된 CNU 20계통을 파종하여 얻어진 주요 작물학적 특성을 살펴보면 다음과 같다. 1. 간장은 유색 메벼인 CNU126 계통이 대조품종인 동진벼와 같이 가장 컸고 메성인 CNU 128계통에서 가장 작았다. 2. 주당 분얼수는 CNU3, CNU50. CNU56, CNU112 계통에서 가장 많았고 대조품종과 CNU 128 계통에서 10개 미만으로 가장 적게 나타났다. 3. 수장은 육성 계통 중 CNU88 계통에서 가장 길었으나 대조구보다 짧고, 육성계통 중에서는 CNU 126 계통이 가장 짧았다. 4. 주당 영화수는 대조구인 동진벼보다 CNU50 계통에서 2배 이상 많았고, CNU158 계통에서 가장 적게 나타났다. 5. 천립중은 CNU113 계통에서 30g이상으로 대조구와 같이 가장 무거웠고, CNU128 계통에서 20g으로 가장 적었다. 6. 주당 수량은 대조구의 26.6g에 비해 CNU50, CNU112 계통에서 두배정도 높았고, CNU128, CNU158, CNU200 계통에서 가장 낮게 타나났다. Aims of this study were carried out to develop the useful lines induced from mutation and pedigree breeding methods among the collected genetic resources from national and domestic areas. In this study, Stem height of CNU126 line and check among them were high, while CNU128 was lower than other lines. Spiklet length of CNU88 was longer, but that of CNU126 was shorter than check. Number of spiklets per plant of CNU50 among lines have twice time than check. 1,000 grains weight of CNU113 was higher than check. In yield per plant, CNU50 and CNU112 were higher than check, Dongjinbyeo.

Improvements of Interfacial Adhesion between PLA and Acetylated Kenaf

( Taek Jun Chung ),( Byoung Ho Lee ),( Hyun Ji Lee ),( Heuck Jin Kwon ),( Hyun Joong Kim ) 한국목재공학회 2011 한국목재공학회 학술발표논문집 Vol.2011 No.-

[P8-235] Antioxidative and hypocholesterolemic activities of Adenophora triphylla extracts in HepG2 celts

Hyun Jin Choi,Soo Hyun Kim,Hyun Taek Oh,Mi Ja Chung,Seung Shi Ham 한국식품영양과학회 2008 한국식품영양과학회 학술대회발표집 Vol.2008 No.10

산천어(Oncorhynchus masou)의 함유성분 분석

오현택(Hyun-Taek Oh),김수현(Soo-Hyun Kim),유수정(Su-Jung Yoo),최현진(Hyun-Jin Choi),정미자(Mi-Ja Chung),함승시(Seung-Shi Ham) 한국식품영양과학회 2008 한국식품영양과학회지 Vol.37 No.7

산천어를 식이로 사용하는 부분만을 취하여 일반성분, 무기질, 비타민, 아미노산 및 지방산 함량을 분석하였다. 수분, 조단백질, 조지방, 조회분 그리고 탄수화물 함량이 각각 73.6±0.4, 17.7±0.3, 3.3±0.2, 1.3±0.1 그리고 4.1±0.2%이었다. 분석한 무기질 중에는 칼슘 함량이 가장 높았고 다음은 인, 칼슘, 나트륨, 철 순으로 높은 함량을 나타내었다. 산천어에 함유된 비타민 C와 E는 각각 600와 200 ㎍/100 g이었다. 16종류의 아미노산이 검출되었으며 그들 중에 필수아미노산은 threonine, valine, methionine, isoleucine, leucine, phenylalanine, lysine, arginine, 그리고 histidine이었다. Oleic acid가 산천어의 가장 풍부한 지방산이고 불포화지방산으로는 EPA, DHA, linoleic acid, α-linolenic acid, γ -linolenic acid, and arachidonic acid를 함유하고 있었다. 이연구 결과들은 산천어를 상업적으로 이용하기 위한 유용한 과학적 기초 자료를 제공하여 주는 것이라고 생각된다. Levels of minerals, vitamin, amino acids, fatty acids and chemical compositions were determined in the fleshy parts that are used for food. The moisture, crude protein, crude lipid, crude ash and carbohydrate contents of masou salmon were 73.6±0.4, 17.7±0.3, 3.3±0.2, 1.3±0.1 and 4.1±0.2%, respectively. Potassium was the highest followed by phosphorus, calcium and sodium. The vitamin C and E levels in masou salmon were 600 and 200 μg/100 g, respectively. Sixteen amino acids were detected and essential amino acids among them are threonine, valine, methionine, isoleucine, leucine, phenylalanine, lysine, arginine, and histidine. Oleic acid was the most abundant fatty acid in masou salmon and polyunsaturated fatty acids were EPA, DHA, linoleic acid, α-linolenic acid, γ-linolenic acid and arachidonic acid. These results may offer a scientific basis for the commercial use of masou salmon.