좌측 견관절 및 요추부 등속성 근력과 드라이버 스윙스피드와의 관계

권태원(Kwon Tae-Won),신동조(Shin Dong-Jo),김인산(Kim In-San) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.4

The propose of this study is to investigate the difference among isokinetic muscular strength on left shoulder joint and trunk and to compare them with their driver swing speed between professional golfers and amateur golfers. Subjects are classified into two groups: professional golfers group(n=5) who are the members of Korea Professional Golf Association(KPGA), and amateur golfers group(n=5) who are the members of Korea Collegiate Golf Association(KCGA), and all of them belongs to H University’s golf team. They participated in measuring of isokinetic muscular strength of left shoulder joint and trunk by an angle velocity in 60˚/sec(five times), 180˚/sec(five times) and the measured data was analyzed with independent t-test by SPSS exclusively among two groups. The Correlation analysis was operated to verify the relation between each isokinetic muscular strength and golf driver swing speed, and stepwise multiple regression analysis was operated to verify the influence of isokinetic muscular strength to golf driver swing speed. They were examined and compared with the following results: 1. Shoulder joint peak torque and peak torque per body weight between two groups At the peak torque, there was no significant difference in any angle velocity on the left shoulder's adduction abduction. At the peak torque per body weight, there was a significant difference(p<.05) when 240˚/sec on the left shoulder's adduction. 2. Trunk peak torque and peak torque per body weight between two groups At the peak torque, there was no significant difference in any angle velocity on the trunk's flectionㆍextension. At the peak torque per body weight, there was a significant difference(p<.05) when every angle velocity on the trunk's extension. 3. Golf driver swing speed analysis result between two groups At the golf driver swing speed, there was a significant difference(p<.05) between two groups and the professional golfers had higher speed than amateur group.. 4. Interrelations between professional golfer's left shoulder isokinetic muscular strength(60˚/sec) and golf driver swing speed The correlation analysis resulted that there was no significant difference between the left shoulder's adduction, abduction peak torque, and peak torque per body weight and two group’s golf driver swing speed. Similarly, multiple regression analysis resulted that the left shoulder's adduction, abduction peak torque, and peak torque per body weight did not statistically influence on two group’s golf driver swing speed. 5. Interrelations between professional golfer's left shoulder isokinetic muscular strength(180˚/sec) and golf driver swing speed Same with result above 4. The correlation analysis resulted that there was no significant difference between the left shoulder's adductionㆍabduction peak torque and peak torque per body weight and two group’s golf driver swing speed. Similarly, multiple regression analysis resulted that the left shoulder's adduction, abduction peak torque and peak torque per body weight did not statistically influence on two group’s golf driver swing speed. 6. Interrelations between professional golfer's trunk isokinetic muscular strength(60˚/sec) and golf driver swing speed In correlation analysis, a significant difference(p<.05, p<.01) between the trunk's flection, extension peak torque and golf driver swing speed appeared as well as the trunk's flection, extension peak torque influenced on golf driver swing speed(p<.01) in multiple regression analysis 7. Interrelations between professional golfer's trunk isokinetic muscular strength(180˚/sec) and golf driver swing speed In correlation analysis, a very significant difference(p<.001) between the trunk's flection, extension peak torque and golf driver swing speed appeared as well as the trunk's flection, extension peak torque remarkably influenced on golf driver swing speed(p<.001) in multiple regressio

점프와 관련된 순발력 테스트 종목간의 신뢰성에 관한 연구

권태원(Kwon Tae-Won),최영철(Choi Young-Choel),김인산(Kim In-San) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.4

The purpose of the study is to gain the tests of reliability among the Power Tests related to Jump Power Tests. For this study, The subjects were the students who has involved in this study were thirty male students who majored in physical education and thirty female students who majored in physical education, and thirty male students and thirty female students who majored in non physical education as all one hundred twenty students in H university where is located in Ansan, Gyunggido. 1. The results on the male students who majored in physical education The level of significance which is followed by Pearson correlation has not showed between the Standing Long Jump and Standing Backward Jump In addition to, the standard Error of Measurements for reliability showed 14.452 for the standing long jump on the standing backward jump and showed 13.731 for standing backward jump on the standing long jump. It means that the range of reliability between two tests would not be adapted the results caused probably by standing backward jump. Therefore, The subjects need to be considered by more corrected methods for standing backward jump. 2. The results on the female students who majored in physical education The level of significance which is followed by Pearson correlation has showed between the Standing Long Jump and Standing Backward Jump above the students in comparison with male

새로운 경기기록 방식을 활용한 검도 공격 기술의 효율성이 경기 승패에 미치는 영향

권태원(Kwon Tae-Won),유기홍(Yoo Gi-Hong),김인산(Kim In-San) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.4

The purpose of this study is to investigate the effects of win and loss of Kumdo game affected by efficiency of its attack skill using new recording system of Kumdo. The subjects of the players who has involved in this study were twenty four male students over semi-final competition who participated in sbs TV broadcasting Kumdo Championship during four years. For this purpose, first, developing the instrument related to contents validity in real game. The author analysed the data that was gotten by research methods had results as follows: First, the efficiency on player's head attack showed over the median scores both blue and white players. In addition to, white player has showed higher attack efficiency than blue and it means that white players who has better efficiency and more attack numbers than blue players who has worse efficiency and less attack can have more winning chance in Kumdo game. Secondly, the efficiency on its wrist attack showed under the median both blue and white players. In addition to, blue players have showed better efficiency and its attack numbers than white players and it means that blue players who had better efficiency and more attack numbers than white players who has worse efficiency and less attack can have more winning chance in Kumdo game. Thirdly, in the efficiency, blue players showed higher over the median compare to white player who showed under the median. Unlike the head and wrist, the number of strikes on the waist is relatively low but this lower number of trials can lead to greater opportunity to gain valid points. This is possible due to the accuracy of the strike on the waist which also implies that one should practice consistently so that the strike is extended to a valid score. Finally, the stabbing skill was not popularly used, as mentioned in the document, because like the strike on the waist it requires a high level of accuracy and the method of training is limited.

서울시 뉴타운개발이 주변지역 주택가격에 미치는 영향에 대한 사업유형별 사례 분석

권태인(Kwon Tae-In),이상효(Lee Sang-Hyo),김재준(Kim Jae-Jun) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.4

The Seoul Metropolitan Government has acknowledged the problem of economic gap between Gangnam and Gangbuk area, and has initiated the Gangbuk Newtown Development project with a goal to achieve regionally balanced development since 1990s. A pilot new town project was launched in three districts on October 23 of 2002. The second-phase project started in 12 districts on November 18 of the following year, and the third-phase project was launched in 10 districts by January 26, 2006. The total number of projects is 25. The new town districts are categorized into three types: residence-oriented, urban and new town. Each prototype was displayed in three districts developed during the pilot project. The new town project inevitably affects the housing price in the vicinity. The previous studies focused on analyzing dynamic relationship between the new town project site and the surrounding area in terms of housing price. For time-series analysis, housing sales price index of the Kookmin Bank was used. In this study, monthly data between January 2003 and August 2009 were used for housing sales price index. The analysis result revealed that the correlation of housing price between new town site and the surrounding area had clear difference depending on the project type.

A New Disinfestation Approach Against Some Greenhouse Pests Using Ethyl Formate Fumigation

권태형,정인홍,이병호,박정규,Kwon, Tae-Hyung,Jeong, In-Hong,Lee, Byung-Ho,Park, Chung Gyoo Korean Society of Applied Entomology 2019 한국응용곤충학회지 Vol.58 No.4

에틸포메이트는 살충 효과가 빠르고 환경에 무해하며 특히 인축독성이 낮아 검역용 훈증제로 등록되어 있다. 이러한 에틸포메이트를 이용하여 훈증 챔버 (0.275 ㎥) 내에서 4종의 농업 해충 (오이총채벌레, 담배가루이, 복숭아혹진딧물, 점박이응애)과 4종의 작물 (참외, 오이, 토마토, 고추) 유묘기를 대상으로 12시간 훈증 처리하여 약효와 약해를 평가하였다. 에틸포메이트 1.5 g/㎥의 약량으로 12시간 훈증 했을 때 담배가루이와 복숭아혹진딧물은 93.3% 이상의 높은 살충력를 나타내었으나, 점박이응애는 2.0 g/㎥ 약량에서도 20% 미만의 낮은 살충력을 나타내었다. 그리고 에틸포메이트의 CT값(농도×시간)이 훈증 처리 온도 20 ± 1.5℃에서 8.9 g·h/㎥ 이상일 때 점박이응애를 제외한 나머지 3종의 해충에 대해서 90% 이상의 살충 효과를 얻을 수 있었다. 에틸포메이트 1.5 g/㎥의 약량으로 상기 4작물을 12시간 훈증했을 때 약해 증상은 나타나지 않았다. 따라서 에틸포메이트 훈증기술은 시설 내 해충방제를 위한 새로운 방식이 될 수 있으며 관행적인 살충제의 사용을 줄일 수 있을 것으로 생각된다. 그러나 해충의 충태별, 작물의 생육 시기별 에틸포메이트 약효 및 약해에 대한 많은 연구가 이루어져야 할 것으로 생각된다. Ethyl formate (EF) is a rapid kill, environmentally safe, and low mammalian toxicity fumigant, registered to disinfest quarantine insect pests from imported agricultural products. A new concept for controlling insect pests of agricultural crops was tested in a fumigation chamber with EF. Control efficacy of and phyto-toxicity due to EF fumigation were evaluated against four pests (Thrips palmi, Bemisia tabaci, Myzus persicae, and Tetranychus urticae) and on seedlings of four fruit vegetables (FVs; yellow melon, cucumber, tomato, and pepper). Ethyl formate fumigation at a dose of 1.5 g m^-3 for 12 h produced >93.3% mortality in T. palmi, B. tabaci, and M. persicae. However, T. urticae was tolerant to fumigation, showing only 20% mortality at 2.0 g m^-3. In terms of concentration × time (CT) products, at least 8.9 g·h m^-3 CT at 20 ± 1.5℃ was needed to achieve > 90% mortality against the three susceptible insect pests. Fumigation at 1.5 g m^-3 for 12 h caused no phyto-toxicity to any of the four FV seedlings. Ethyl formate application, as a new disinfestation method in greenhouses, could be an alternative to reduce the use of conventional insecticides. However, further studies are needed to determine the efficacy of this method at different pest developmental stages and in different greenhouse environments. Additionally, research is needed to elucidate the phyto-toxicity of EF application at different growing stages of a wide variety of crops.

중앙 집중형 서버 기반 망에서의 연결 관리 방식 비교 및 성능 분석

권태현,임영은,최인상,김춘희,차영욱,Kwon, Tae-Hyun,Yim, Young-Eun,Choi, In-Sang,Kim, Choon-Hee,Cha, Young-Wook 한국정보처리학회 2006 정보처리학회논문지 C : 정보통신,정보보안 Vol.13 No.7

For the successful promotion about the NGN (Next Generation Network), centralized network control and management technology is required to guarantee QoS and Traffic Engineering. This paper describes SNMP. Web Services and Network Open Interface based connection management scheme which can be used in centralized server based network in which the control plane is separated from transport plane. We also constructed platforms about each of these connection management schemes and performed comparing and analyzing the performance of connection setup delays. 차세대 네트워크의 성공적인 추진을 위하여 서비스 품질과 트래픽 엔지니어링을 보장할 수 있는 중앙 집중형 통합망 제어 및 관리 기술이 요구된다. 본 논문에서는 전달 평면과 제어 평면이 분리되어 있는 중앙 집중형 서버 기반의 망에서 사용될 수 있는 연결 관리 방식인 SNMP, 웹 서비스 그리고 네트워크 개방형 인터페이스 기반의 연결 관리 방식을 기술하였다. 또한, 이들 각 연결 관리 방식에 대한 플랫폼을 구축하고 각 연결 관리 방식에 대한 연결 설정 지연을 측정하여 성능을 비교 분석하였다.

부동산 개발사업에 지분투자 형태의 재무적투자자 유인을 위한 실물옵션 적용 연구

권태인(Kwon Tae-In),이상효(Lee Sang-Hyo),김재준(Kim Jae-Jun) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.1

The objective of the study is to seek methods to adopt abandonment option to reduce risk of a project failure, in order to attract financial equity investment for construction projects, many of which suffer from lack of funds. The analysis result indicated that according to the calculated input variables, the option value amounted to KRW 20.43 million. This value is subject to fluctuation due to strategic decision-making of financial investors and MD plans. It needs to be noted that strategic flexibility against risk of future uncertainty can be ensured by applying real option. The current analysis of project feasibility based on cash flow discount method cannot accurately take uncertainty of future value into account. Thus, it is incapable of efficient risk management. ‘Abandonment’option indicates buying a right to dispose real assets, and it enables strategic response even before the maturity of optionor when a problem rises to erode initially expected profit at maturity. In this study, value of the ‘abandonment’option is assessed. In reality, many risk factors need to be considered, and several options are likely to be combined. Therefore, it is necessary to conduct further research on valuation of compound options.

발아에 의한 유채의 일반성분, 지방산 및 무기물의 조성변화

金仁淑(In-Sook Kim),權泰鳳(Tae-Bong Kwon),吳成基(Sung-Ki Oh) 한국식품과학회 1988 한국식품과학회지 Vol.20 No.2

온도 및 습도 조건에 따른 훈증제 에틸포메이트의 채소류 작물에 대한 약해 연구

정인홍(In-Hong Jeong),이관석(Gwan-seok Lee),박부용(Bueyong Park),서보윤(Bo-yoon Seo),조점래(Jum-Rae Cho),권태형(Tae Hyung Kwon),이병호(Byung-Ho Lee),박정규(Chung Gyoo Park) 한국농약과학회 2020 농약과학회지 Vol.24 No.4

발아에 의한 유채의 Glucosinolate 및 유리당 함량의 변화에 관한 연구

金仁淑(In-Sook Kim),權泰鳳(Tae-Bong Kwon),吳成基(Sung-Ki Oh) 한국식품과학회 1988 한국식품과학회지 Vol.20 No.2