球技運動 選手의 下肢形態 및 體力 特性

김광휘,김도연 대구대학교 인문과학연구소 1994 人文科學硏究 Vol.12 No.-

The purpose of this study is to provide necessary information for the guidance and selection of soccer and basketball players at the elementary, middle and high school levels. The groups studied comprisied 270 students (90 soccer players, 90 basketball players, 90 general students) in the Taegu area. Each group was consisted of 30 students each from the elementary, middle and high schools. 24 test variables were used in this study, including 17 variables for structure and 8 variables for physical fitness. Only 7 variables were selected for index of structure. In order to find differences among the three groups, ANOVA was applied. The conclusion of this study is as follows: First Among the soccer players, the higher the level of school the longer is the player's length and girth; among the basketball players, only the player's length is longer than non-player students. In addition, the basketball player's length is longer than soccer player's. Second. In physical fitness as compared to any other groups, the soccer players at all school levels have greater power and endurance and the basketball greater agility. Third. In selecting ball players, desirable categories of test for soccer players are lower thigh length, relative lower limb length at the elementary and middle school level, a larger upper thign girth is desirable at the high school level. A larger lower thign length and a larger relative lower limb length are required for the basketball players at all school levels. A thin front upper thign for the soccer players and a thin rear lower thigh for basketball players are also desirable in testing skinfold thickness. In testing physical fitness, 50-meter dash and 1,000-meter run are appropriate for the soccer players and side step test and shuttle run in selecting basketball players.

심근경색 환자에서의 헤파린 사용시 장요근 혈종과 연관된 후복막강내 자발적 출혈 1예

김효정,김도연,황민규,조홍근 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.10

화력발전소 주변지역의 비산탄진 농도분포에 관한 연구

김신도,도연지 서울市立大學校 1991 論文集 Vol.25 No.-

The concentration profiles of particulate matters in the neighborhood of coal fired power plant was studied. For this purpose, wind tunnel test was conducted and the distribution of coal dust at the 12 selected points inside of 7.65m long, 1.8m wide wind tunnel was measured. Field survey was also carried out for the comparison. The 20 samplers was installed for the collection of particles emitted from the power plant and one additional sampler was mounted at the site far from the plant enough the effect of coal dust to be negligible. Based on the collected data, a CMB model, a sorts of recepter models, was used to study the sorce apportionment. It was shown that the correlation coefficient between and experimental research and field survey was 0.84. Comparison profile of coal dust in the field precisely simulated by wind tunnel.

溫經湯에 關한 文獻的 考察

김연도,김철원,유심근,박병렬 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

Through the study of successive literatures form the Han-dynasty(漢代) when 《Keumjweyeuliak(금궤요략)》 was written to modern age, we inspected many types of Onkyungtang(溫經湯) and prescriptions including the term of ' Onkyung(溫經)' or Chokyung(調經)', and look into their composition and symptoms respond to administration of this medicine. The results of this study were as follows; 1. The medicine which makes up Onkyungtang was 38 kinds from the Han-dynasty to the Chung-dynasty(淸代), and up to the present it summed into 43 kinds. 2. Onkyungtang which was composed of different kinds of medicine was 10 types from the Han-dynasty to the Chung-dynasty and added 11 types in modern days. Therefore it sumed up into 21 types. 3. No Onkyungtang is seen more common than that of the same composition as in 《Keumjweyeuliak》 in successive literature. The next is the same constituents as in 《Buinyangbangdaejeon(婦人良方大全)》. Others were rare. 4. Onkyungtang in《Keumjweyeuliak》was used to treat cold syndrome of the penetration and conception vessles or uterus of deficiency type and that in 《Buinyangbangdaejeun》was for cold syndrome of the penetration and conception vessels or uterus of excess type. 5. Other names of Onkyungtang in《Keumjweyeuliak》were Daeonkyungtang(大溫經湯), Chokyungsan(調經散), Chokyungtang(調經湯), Chunkeumchokyungtang(千金調經湯), Chunkeumchokyungsan(千金調經散) and Soonkyungtang(小溫經湯). And the prescription in the same constitution was also called Chungkyungonkyungtang(仲景溫經湯), Keumkweonkyungtang(금궤온경탕) and Sibbionkunghwan(十二溫經丸). 6. Onkyungtang in 《Buinyangbangdaejeon》was called Soonkyungtang(小溫經湯) and the very prescription was also called in the name of Yangbangonkyungtang(良方溫經湯), Jinmionkyungtang(指迷溫經湯), Kungkwiinkyungtang and Jinssionkyungtang(陳氏溫經湯).

청각장애 성인의 말명료도 평가방법의 비교

도연지,김수진 한국음성과학회 2004 음성과학 Vol.11 No.4

This study aims to discuss the test methodologies that evaluate the speech intelligibility of hearing-impaired adults using various contexts. Seven adults with severe hearing loss participated in the experiment. The context of the speech intelligibility consists of 77 pairs of one-syllable words with phonemic contrasts, 30 two-syllable words and the list of each 12 and 10 sentences. The speech intelligibility of various contexts had significant correlation, and both one-syllable words with phonemic contrasts and the sentence 1 had higher correlation than other tests. The one-syllable words with phonemic contrasts took longer to test than others, and it demanded more effort to select the pair of words. However, from the point of view of the identification of segmental difficulties, the one-syllable words with phonemic contrasts that reflected segmental factors contributing to the intelligibility was useful.

대학생 피하지방분포와 최대산소섭취량간의 관계

김도연 국민대학교 스포츠과학연구소 2001 스포츠科學硏究所論叢 Vol.20 No.-

본 연구는 남녀 대학생을 대상으로 피하지방분포와 최대산소섭취량간의 상관을 밝히는데 그 목적이 있으며, 연구 대상은 체육대학 1학년 남녀학생 각각 15명, 총 30명이다. 측정항목은 체격에서 신장, 체중 2개 항목이며, 피하지방은 상완이두피지후, 상완삼두피지후, 견갑골하부피지후, 복부피지후, 전장골능상부피지후, 견갑골하부피지후+전장골능상부피지후+복부피지후등 6개 항목이며, 체지방량 1항목과 지수(index)와 비(比 : ratio)는 원추지수(conicity index : CI), 체질량지수(body mass index, BMI), 복위/둔위비(waist-hip ratio)등 3개항목으로 총 12항목이다. 측정방법은 신장는 신장계, 체중은 체중계로 측정으며, 피하지방은 Lange skinfold caliper(Model, DT-8)를 이용하여 계측하였다. 체지방량은 Nagamine 와 Suzuki의 공식에 의해 체밀도를 구하여 Brozek 등의 공식을 이용하여 구하였다 또한 원추지수, 체질량지수, 복위와 둔위비는 공식에 의해 각각 산출하였다. 최대산소섭취량 측정은 가스자동분석기(QMC 430, 1995, USA)와 Treadmill(Quenton 4300)을 이용하여 Bruce Protocol을 사용하여 all out 상태까지의 산소섭취량 중에서 최고값을 최대 산소섭취량으로 하였다. 자료처리 측정항목에 대하여 상관과 차이를 알아보기 위해서 Pearson의 적률상관계수와 독립 t-test를 p<.05 수준에서 실시하였다. 구체적인 결과는 다음과 같다. 1. 대학생의 피하지방 분포는 남녀간 차이가 있으며, 여학생이 남학생 보다 높았다. 2. 대학생의 둘레비는 남녀간 유의한 차이가 있으며, 남학생이 여학생 보다 높았다. 3. 대학생의 피하지방 몇 지수와 최대산소섭취량간에는 최대산소섭취량과 남학생의 경우 상완이두피지후와 원추지수, 여학생의 경우 체질량지수와 상관이 높았다. 따라서 피하지방분포와 지수 및 둘레비와 최대산소섭취량간의 상관에서 최대산소섭취량과 가장 상관이 높은 피하지방과 지수항목은 남학생의 경우 상완이두피지후와 원추지수이고, 여학생은 체질량지수로 라는 결론을 얻었다. The purpose of this study is to investigate what level of correlation exists between skinfold distribution and Vo_2 max of university students. Thirty students including 15 male and 15 female from the physical education college participated in this study. the measuring items are as follow: physique has two items such as height and weight, skinfold has six items such as biceps, triceps, subscapular, abdominal, supraspinale and sum of subscapular, abdominal and supraspinale, fat have fat of body, Index and ratio has three items such as BMI, IC and WHR, physical fitness have Vo_2 max, It used heightmeter for height, weight gauge for weight and skinfold for Lange skinfold caliper. It used QMC and treadmill for measurement of Vo_2 max. In order to find relationship from test variables, t-test(p<.05), Pearson' product-moment correlation coefficient were applied. The conclusion of this study is as follow: 1. There is significantly difference skinfold distribution according to sex, Female has higher than male. 2. There is significantly difference girth ratio according to sex. Male has higher than Female. 3. There is significantly difference Vo_2 max according to sex, Female has higher than male. 4. There is relationship between skinfold, ratio and Vo_2 max, in the case of male, Vo_2 max is related to both biceps and CI, female, BMI. In conclusion, at the university, there is significantly difference skinfold distribution ratio and Vo_2 max according to sex. Vo_2 max is related to biceps and CI for male, BMI for female.

구간 계산을 이용한 고정점 반복법에 관한 연구

고연순,김도현 濟州大學校 師範大學 科學敎育硏究所 1994 科學敎育 Vol.11 No.1

Root-finding problem is one of the most basic problem in numerical analysis. In this thesis, we shall consider a method for including zeros of real func-tion of the real variable x. We can use the interval computations to find zeros of the function. Among the many methods for root finding, we shall study especially fixed point iteration. It can be used to find zeros of the function with non-accuracy coefficients and an approximation of solution in algebraic equations.

G.729기반 VoIP망 음질의 주관적 평가에 관한 연구

강영도,강진석,최연성,김장형 제주대학교 산업기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.1

This paper researched the scale of subjective speech quality measurement over VoIP(Voice over IP) service which is a component of broadband networks. Though objective parameters of multimedia services like PSNR or Jitter can be easily measured and defined, those factors are not easily met the users' perceptual recognition. It is suggested that the scale of speech quality measurement through the subjective measurement is more adequate for end-to-end speech quality which is composed of sender-side quality, transmission quality, receiver-side quality, which provides the degree of correctness in speakers' representation, the degree of impairment caused by various factors, and the degree of recognition processed speech, respectively. It's also examined by the proposed method and verified by it's availability.

폴리에틸렌의 전화정도에 따른 열분해 특성 변화

정도성,김상채,선우창신,유의연 全南大學校 觸媒硏究所 2003 觸媒硏究 論文集 Vol.24 No.-

Thermogravimetric analysis and pyrolysis experiment were used as studying the effent of conversional level on the thermal degradation of HDPE. The wide conversional range in this work encompassed a change in the degradation mechanism. To accommodate this mechanism change, the data were treated as a pseudo first-order reaction. It was observed that the data conformed to a first-order fit at conversional range of 0.05∼0.98 with an activation energy of 376 kJ/mol. The lower activation energy occurring at lower conversion (0.01∼0.05) is attributed to scission of 'weak links' in macromolecles. The higher activation energy was similar to the carbon-carbon bond dissociation energy and is associated with random scission throughout backbone chain. The lower the conversional level, the more abundant the paraffinic hydrocarbon in product. To what extent this finding are influenced by limitation of terminate reaction of radicals.

열분해반응을 통한 폴리에틸렌-폴리프로필렌 혼합물의 오일회수 특성

정도성,김상채,유의연 全南大學校 觸媒硏究所 1998 觸媒硏究 論文集 Vol.20 No.-

The thermal degradation of polyethylene, polypropylene alone an their mixture into oil and gas products has been carried out at different reaction conditions. The effect of various parameters such as temperatures, space velocity, mixing ratio on the yield and composition of the oil recovery for these polymers at different reaction temperature. In polyethylene-polypropylene mixtures, the more polypropylene is added, the more rate of degradation of PE and conversion of PE/PP mixture increase at a lower temperature than that of PE alone. It is proposed that this enhancement is due to the free radical from polypropylene, in which can form free radical from polyethylene a lower temperature.