인라인스케이팅이 남자중학생의 체력과 골밀도에 미치는 영향

안용덕,원영두 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.3

This study is on examining the influence of inline skate on physical fitness and bone density of adolescents and as a result of examining physical fitness and bone density of 15 students who exercised inline skate over one year with the exercise strength of 50-75% for an hour three times a week and 15 general students who had not regular exercise, it obtains the following conclusions. 1. In comparison of physical fitness between inline skating group and general student group, there is a significant difference in flexibility at the level of P<.01 and in agility at the level of P<.05 and a statistically significant difference in muscular endurance and power at the level of P<.01. 2. In comparison of bone density of lumbar (L₂-L₄), L₂ shows higher bone density in inline skating group than in general student group and there is a statistically significant difference at p<.001, L₄ shows a significant difference at p<.01 and total lumbar bone density of L₂-L₄ shows a significant difference at p<.05. 3. In comparison of bone density of word triangle, inline skating group shows higher bone density than general student group and there is a statistically significant difference at p<.001 and there is no significant difference at femoral neck and trochanteric.

球技種目選手의 體格 및 體力에 關한 分析的 硏究

安容奎,金海中 龍仁大學校 1990 용인대학교 논문집 Vol.6 No.-

This study was based on the analysis after measurement of physique and physical fitness, and the subjucts of the study on the ball-game events are 40 persons. C20 in Tennis players and 20 in Volley ball players of thegirls high schools in Seoul area. The results are as follows ; 1. The height of volley ball players in the girls high schools in Seoul area is higher than women Volley-ball players who represented Japan, and the weight is little heavier, but the Volley-ball players in each sports entries appear to have the best physique. 2. The Volley-ball players among a ball-game players of girls high school in Seoul area appeared to have good physical fitness and training program for development of physical fitness is required to Tennis players. 3. Tennis players are appeared higher correlation between 800m Run an Sargent Jump, therebore Tennis game was appearrd to need fairly the Endurance, Agility, Power and etc. 4. Volley ball players are appeared certain correlation in 100m Run, 800m Run, long distance Run, 40 Yard Maze Run, margent Jump and trunk flexion, Hence Volley ball game is appearrd to need factors of speed, Endurance, Agility and Power. 5. Ball game events demanded the most Endurance, Speed and Agility, ad Power and Flexibility also appeared certain correlation, therefore it isconsidered that need all factors of inspective physical fitness. 6. Among each other physique in all events are appeared to be high correlation or certain things, therefore proved a Cureton's theory, and thistheory will need recently when we cohhse a new player in future. 7. Tall person excelled in power and Agility, tall sitting-height excelled in Speed, great chest circumference excelled in Power and Agility, Heavy Weight excelled in Endurance and Agility. But physique and trunk flexion are appeared to be not related.

상악동을 침범하는 역위성 유두종의 증례보고

지용화,최보람,허경회,안창현,이삼선 대한구강악안면방사선학회 2009 Imaging Science in Dentistry Vol.39 No.2

The present study reports a case of inverted papilloma of the nasal cavity and infiltrating into the maxillary sinus. Inverted papilloma is an uncommon and locally aggressive benign tumor of the sinonasal region. The patient, 51-year-old male, presented with unilateral nasal obstruction and periodic swelling on the palate without pain. Enhanced CT scan revealed a heterogeneously enhancing solid mass in the nasal cavity and infiltrating into the right maxillary sinus, as well as an incidental, secondarily infected residual cyst m the periapical area of the right maxillary canine. The sinonasal mass was revealed as an inverted papilloma on histopathologic examination.

農淵 山水遊記 硏究

안득용(An Deuk-yong) 동양한문학회(구 부산한문학회) 2006 동양한문학연구 Vol.22 No.-

  본고는 17세기 후반 산수유기의 특징과 변화요인에 대해 고찰하기 위해 농암 김창협과 삼연 김창흡의 산수유기에 주목하였다. 산수유기에 대해 적지 않은 연구 성과가 도출되었지만, 개별 작품과 시대적 변화의 양상을 종합적으로 고찰한 연구는 드물다. 이러한 미비점을 극복하고 이상적인 결과 도출을 위해서는 대표적 작가의 산수관과 실제 작품에 대한 종합적 고찰이 필수적이다. 이러한 목적 때문에 본고는 산수유기의 질적 변화와 양적 확대를 가져온 17세기 후반에 주목하였으며 당대 대표적 작가인 농연의 산수관과 실제 작품분석에 주력하였다.   농연은 前代보다 자연미를 중요시하는 시각을 지니고 있는데, 이러한 사실은 그들이 산수에 대하여 언급한 내용과 산수품평을 통하여 알 수 있다. 이러한 자연관은 그들 작품에서 구조와 스타일적 측면에서 반영된다. 이를 세밀하게 살펴보기 위하여 김창협의 「凜巖尋瀑記」를 구조와 의미, 스타일의 측면에서 고찰하였다. 그 결과 이 작품은 전환을 통한 점층과 긴장 해소의 구조로 되어 있으며, 王安石의 「游褒禪山記」와의 비교를 통하여 교훈적 내용을 여행의 스케치 아래에 배치하였다는 사실을 발견할 수 있었다.   여행의 가벼운 스케치는 당시 소품의 유행과 일정한 관련이 있다. 이러한 소품의 유행은 유연한 의식의 발현과 일정 정도 연관이 있으며, 유연한 의식에 의해 발현된 소품체의 성행은 당대 공고화되어 나가던 의식의 균열을 예감하게 하는 징후이다. 따라서 農淵은 균열에 일조하였으며, 이러한 점이 山水遊記 내에서 그들이 점유하고 있는 위치라고 할 수 있다.   This paper focused on Nongam Kim, Chang-hyeop(農巖 金昌協) and Samyeon Kim, Chang-heup(三淵 金昌翕)"s sansuyugi(山水遊記) in order to make a study on special features and meaning of sansuyugi in the 17th century. Many researchers studied sansuyugi, but only a few researchers thought over the individual works and the change of tide. Therefore I must make a study on representative writer"s works and the view of nature(山水觀), for ideal outcome. For this purpose, I focused on the 17th century when sansuyugi was made by many people and analyzing works of Nongyeon(農淵) as representative writers.   Conclusionally, I knew that they had laid weight on the natural beauty(自然美) by making a study on their estimating nature(山水品評) and references. And then, for the sake of researching the beautiful features of their works, I made a study on Kim, Chang-hyeop"s 「Fing waterfall in Neumam (凜巖尋瀑記)」. In result, I knew that the work had the structure that made inspiration by tense strengthening-dissolution. And By comparing 「Finding waterfall Neumam」 with Wang, An-seok"s 「Traveling Mt. poseon (游褒禪山記)」, I found that the former had a lesson beneath the sketch of travel. The light sketch of travel is related to the trend of sopoom(小品). This paper found that 「Find waterfall in Neumam (凜巖尋瀑記)」 and another sopoom(小品) works were made by his flexible sense and tension of beauty.   Conclusionally, I knew that flexible sense and sopoom(小品) style cracked conventional thought, and Nongyeon made the crack to a certain degree.

구리의 전기석출시 젤라틴이 물성에 미치는 영향

신석재,강현춘,안형환,강안수,김용렬,한성만,이한섭 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-

In the electrodeposition of copper foil for preparing printed circuit boards, a little amount of gelatin as a addition agent has been used for the better characteristics of a coat of electroplating. Gelatin modifies the physical properties such as mechanical strength, matte-side roughness, ultimate tensile strength(U.T.S), and elongation of copper foil, furthermore gelatin have influence on the structure of electrodeposits and the cathode polarization. The electrolyte used was of a composition; CuSO₄·5H₂O 300g/ℓ, H₂SO₄ 100g/ℓ, NaCl 10 ppm as a brightner, and was gelatin 0-7 ppm as a addition agent. Current density was 50 A/dm², and the temperature of electrolytic bath was 50 to 52 ℃. Experiments showed that the optimum gelatin concentration was 5 ppm with the consideration of the numbers of electrodeposited nuclei. And the nuclei numbers was sharply increased under 5 ppm, but was almostly constant above 5ppm. Average matte-side roughness by Surfcorder was gradually increased with the increasing gelatine concentration up to 2 ppm, and maximum roughness was observed at 2ppm. The roughness showed gradual decrease within the concentration range of 2 to 4 ppm, and was almost constant above 4ppm . Within the gelatine concentration range of 0 to 7 ppm, as the concentration increased, UTS was increased and elongation was decreased logarithmically. Also, in comparison between UTS and elongation, gelatin was identified as an addition agent acting inversely.

수생식물의 중금속 흡수능에 관한 연구

이종화,함용규,박종안 한국환경독성학회 1996 환경독성보건학회지 Vol.11 No.2

In this study, we investgated the uptake capacity of several water plants for heavy metals (lead and cadmium) in soil of rivers where are adjacent to a industrial complex in Chun-An city and in A-San city. We also examined the deposition pattern of heavy metal in plants. The results are as follows: 1. The soil of river in Chun-An city was polluted more serious than that of A-San city. In Chun-An city, mean values of lead and cadmium contents in soil were 26.224±28.037㎍/g, and 0.854±1.127㎍/g, respectively. 2. Water plants examined in this study were Sium suave KITAGAWA, Persicaria thunbergii H. GROSS, Phragmites japonica STEUD, Echinochloa crus-galli var. frumentacea WIGHT and Persicaria hydropiper SPACH. Both metal contents of several water plants distributed in Chun-An city were higher than those in A-San city. In these plants, Sium suave showed the highest uptake capacity for lead and cadmium. The mean values of lead and cadmium contents in Sium suave were 40.957 ±29.577 ㎍/g and 1.930±1.076 ㎍/g, respectively. Persicaria thunbergii also showed a relatively high uptake capacity for both metal. 3. Correlation between metal contents in soil and water plants was high. In both cases of Sium suave and Persicaria thunbergii correlation coefficients were 0.605 and 0.549, respectively. 4. We analyzed lead and cadmium contents in root, stem and leaf of several water plants. Both metals were mostly deposited in root. Much of both metals were also deposited in leaf. From the results, we suggest that Sium suave KITAGAWA and Persicaria thunbergii H. GROSS can be used to reduce heavy metals from industrial waste water.

Thermal Expansion Behavior of Thermally Expandable Microspheres Prepared by Suspension Polymerization Using P(AN-MMA-MAA) Core/Shell

Hyun Tae Kim,Ashok Kumar Jaladi,Yong Jin Lee,Duk Keun An 대한화학회 2020 Bulletin of the Korean Chemical Society Vol.41 No.2

Thermally expandable microspheres (TEMs) have widespread industrial applications. In this study, high heat resistant and largely expandable TEMs have been synthesized by suspension polymerization. Microspheres were prepared with acrylonitrile (AN) as the main monomer. Initial thermomechanical analysis of TEMs containing AN and methyl acrylate (MA) showed good thermal expansion, leading to the investigation of the polymerization using various monomers at variable weight ratios. TEMs with co-polymer AN, methyl methacrylate (MMA), and methacrylic acid (MAA) were investigated for the first time. They displayed wider heating range and larger expansion rate than the microspheres with MA monomer. The effect of varying amounts of monomer ratios on the thermal expansion behavior is discussed.

운동특성이 유사한 구기 운동선수들의 신체구성과 체력 비교

안용덕 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

This study is on the comparison of physical composition and strength of ball game players attending high school with similar exercise characteristics and selects total 90 players including 30 hockey players among thosewho ranked high at the national match for 2002-2003, 30 baseball players except professional pitcher and 30 golfers as the subjects of the research, and as a result of measuring, comparing and analyzing their obesity, body fat rate, heart rate in stability, vital capacity and strength, the following conclusions are obtained. 1. Baseball player group showed high body fat rate and hockey player group had the lowest heart rate in stabilityand the highest vital capacity (p<.001). 2. Baseball players showed the highest grasping power and backmuscle strength in the comparison of muscular strength (p<.001) and the highest score in dip-press and hockey player group showed a significant difference in raising upper body (p<.001). Bending upper body forward which is the measurement of flexibility was highest in baseball player group (p<.001) and the standing high jump which is the measurement of power was highest in baseball player group (p<.001). In standing with one foot and closed eyes which is the measurement of equilibrium, hockey player group showed high equilibrium, but there was no significant difference, side step measurement for measuring agility was highest in hockey player group (p<.001) and measurement of the whole body reaction was highest in hockey player group, but there was no significant difference. Maximum oxygen intake which measures cardiopulmonary endurance was highest in hockey player group(p<.001).

跆拳道 競技中 들어찍기 技術의 得點力과 姿勢 및 技術類型別 分析

安容奎 龍仁大學校 1991 용인대학교 논문집 Vol.7 No.-

This thesis is related with the 1st selection of national representative players in '90 and the selection of national representative players in 2nd World University Taekwondo Championship ; 3 Games each weight class, and Total 480ames(96 persons). A development on its contest was contained VTR system and it was investigated and analyzed to what is the purpose of the Gaining Points Ability and Technical Attack Pattern to Dropping Kicking Technique in Taekwondo Tournaments and when the Dropping Kicking Technique was tried. These were applied that it could be little help for you to lead the development of the managment and Taekwondo tournaments in its higher technical development which escaped from the pattern of simple attacks for first line's coach or player. Therefore, the results of the study are as follows : A. The successive scoring rates of Dropping Kicking technique. 1. Total used numbers were appeared 269 times in the Dropping Kicking technique and total numbers of gaining points were appeared 18. 2. The average used numbers per game were appeared 5.6 times and the average numbers of gaining points per game were 0.38. 3. The successive scoring rates were appeared 6.69% in 48 Games, this result was appeared more rates than study of walking ahead(about 3.9%), because all players are realized that Dropping Kicking technique only attacking a face part has the higher degree of difficulty than different kicking technique attaching a body part. B. The successive scoring rates of Dropping Kicking technique in each different weight class was in the order of bantam weight(11.43%), Fin weight(8.69%), Light weight(8.57%), Fly and Heavy weight(6.25%), Welter weight(4.34%), Feather weight(3.12%), Middle weight(2.94%). however, the Bantam weight class revealed most rates as 11.43%. Therefore, a successive scoring rates in a light weight nearly kept more than a heavy weight, this is judged because the time required of kicking performance in heavy player take longer than light player. C. The successive scoring rates of Dropping Kicking technique in each Round 1. Total used numbers of Dropping Kicking technique in all Round(total 48Games) were 269 times, In each Round were revealed in the order of : 1 Round - 74 times 2 Round - 101 times 3 Round - 94 times 2. The successive scoring rates in each Round were revealed in the order of : 1 Round - 5.41% 2 Round - 5.94% 3 Round - 8.51% Therefore, 3 Round(8.51%) was appeared the most rate in all Round, these show us a certain psychological factors were working in each different round. D. Analysis of the Gaining Points in each Stance and Technical Pattern. The Gaining Points of same stance were 13 points(72.2%), the opposite stance were 5 points (27.8%). However, Dropping Kicking technique was appeared the most points in same stance. In same stance, Single Counter Attack Pattern was appeared the most points (8 points) of all attack pattern, And Combination Attack Pattern was 3 points and Single Attack Pattern was 2 points. In opposite stance, Attack pattern was appeared in the order of Single Attack Pattern(3 points), Combination Attack Pattern(1 point), Combination Counter Attack Pattern(1 point). But, Combination Counter Attack Pattern in same stance and Single Counter Attack Pattern in opposite stance were revealed that a gaining point was nothing.

부산지역에서 고려수지요법의 인식과 이용실태

안성향,김강련,이용환 고신대학교보건과학연구소 2003 보건과학연구소보 Vol.13 No.-

The purpose of this study is to examine current recognitions and applications of Koryo Hand Therapy that is now prevailed in this nation. For the purpose, the author made a questionnaire survey to 227 people who experienced the therapy and 179 having no experience of the therapy. The surveyed subjects were all residents of Busan. The survey results showed that Koryo Hand Therapy was most frequently used by people in 5th dedicate or over. Those who experienced the therapy had more recognition and expectations about the treatment than those who didn't expehence it. Such recognition and expectations were most influenced by the age level. Families and relatives were a main source of information about Koryo Hand Therapy. Most of the subjects referred themselves to the therapy in accordance with recommnendations by others around them. In most cases, the therapy was applied in combination with hospital treatment. Most of the subjects used Koryo Hand Therapy 2 or 3 times a week for not longer than 3 months, especially the therapy with acupunctures. Most of people surveyed here used only one of the ways of fhe treatment. The study subjects were very sadsfied with therapeutic and preventive effects of the therapy. Most of them intended to receive the treatment again and recommend it to others. No side effect was recognized as the strongest point of Koryo Hand Therapy. In conclusion, those who experienced Koryo Hand Therapy had more recognition and expectation and more positive attitudes about the therapy. Thus Koryo Hand Therapy needs to be actively informed and more easily approached by people.