삼환계 항우울제의 부작용으로 나타난 간대성 근경련증 1례

최종필,박성수,박준석,나상준,Choi, Jong-Pil,Park, Seong-Soo,Park, Joon-Seok,Na, Sang-Jun 대한임상독성학회 2006 대한임상독성학회지 Vol.4 No.2

Myoclonus is manifested in a variety of situations including metabolic derangements, brain lesions, epilepsy, and drugs toxicity. We reported a rare case of amitriptyline-induced myoclonus. A 64-year-old man with a tension-type headache was administered amitriptyline at 15 mg/day. Eight days after initiation of amitriptyline, multifocal myoclonus developed, involving the face and upper extremities. Two hours after the administration of clonazepam at 1 mg, myoclonus resolved completely.

마이크로 펀칭시스템 구현을 위한 심벌타입 변위확대 기구의 설계

최종필(Jong Pil Choi),이광호(Kwang Ho Lee),이해진(Hye Jin Lee),이낙규(Nak Gyu Lee),김성욱(Seong Uk Kim),주은덕(Eun Deok Ju),김병희(Byeong Hee Kim) 한국생산제조학회 2008 한국생산제조시스템학회 학술발표대회 논문집 Vol.2008 No.5

This paper presents the development of a high speed micro punching system with modified cymbal mechanism. To realize the high speed micro punching, we introduced the hybrid system with a macro moving part and micro punching part. The macro moving part includes a ball screw, a linear guide and the micro step motor and micro punching part consists of PZT actuators and displacement amplification device with modified cymbal flexure hinge mechanism. The PZT actuator is capable of producing very large force, but they provide only limited displacements which are several micro meters. Thus the displacement amplification device is necessary to make those actuators more efficient and useful. For this purpose, a cymbal-type flexure hinge mechanism in series is proposed. The finite element method was used to design the flexure hinge mechanism and analyze the mode shape of the one. The displacement and mode shape error between the FEM results and experiments are within 10%. A considerable design effort has been focused on optimizing the flexure hinge to increase the output displacement and punching force.

오프그리드용 풍력-연료전지 하이브리드 시스템 개발

최종필(Choi, Jong-Pil),김광수(Kim, Kwang-Soo),박내춘(Park, Nae-Chun),김상훈(Kim, Sang-Hun),김병희(Kim, Byeong-Hee),유능수(Yu, Neung-Su) 한국신재생에너지학회 2007 신재생에너지 Vol.3 No.2

This paper describes the design and integration of the wind-fuel cell hybrid system. The hybrid system components included a wind turbine, an electrolyzer (for generation of H2), a PEMFC (Proton Exchange Membrane Fuel Cell), hydrogen storage tank and BOP (Balance of Plant) system. The energy input is entirely provided by a wind turbine. A DC-DC converter controls the power input to the electrolyzer, which produces hydrogen and oxygen form water. The hydrogen used the fuel for the PEMFC. Hydrogen may be produced and stored in high pressure tank by hydrogen gas booster system. Wind conditions are changing with time of day, season and year. So, wind power is a variable energy source. The main purpose with these WT-FC hybrid system is to store hydrogen by electrolysis of water when wind conditions are good and release the stored hydrog en to supply the fuelcell when wind is low.

인치웜 메커니즘을 이용한 고하중/대변위 엑츄에이터의 개발

최종필(Jong Pil Choi),이광호(Kwang Ho Lee),이혜진(Hye Jin Lee),이낙규(Nak Gyu Lee),김병희(Byeong Hee Kim) 한국생산제조학회 2007 한국생산제조시스템학회 학술발표대회 논문집 Vol.2007 No.10

This paper presents the design of inchworm motor for high precision actuator system of large-displacement and high-force. The inchworm motor can realize the long stroke with high load capacity and resolution by clamping and extending sequences of the PZT. It can attain high resolution and high force from the accurate displacement of extension and contraction motion. The proposed inchworm actuator consists of two clamping parts on the top and the bottom side of the inchworm body, and one extension part in the middle of the actuator. The two clamping PZT are provide the holding force and the extending PZT is provide the displacement of tool guide. In generally, PZT has the low tensile strength and shear. Therefore, design of the inchworm motor has been focused on optimizing the pre-load housing mechanism to reduce the shear force. The preload also creates additional return forces to aid in the release of the clamping mechanisms. The detailed design of the pre-load mechanism was performed using finite element analysis. A prototypeof the inchworm motor was fabricated and tested with respect to the variations of the serial and parallel connection of the PZTs.

고속 마이크로 펀칭 시스템 개발

최종필(Jong Pil Choi),이광호(Kwang Ho Lee),이혜진(Hye Jin Lee),이낙규(Nak Gyu Lee),김병희(Byeong Hee Kim) 한국생산제조학회 2007 한국생산제조시스템학회 학술발표대회 논문집 Vol.2007 No.10

This paper presents the design of high speed micro punching system using PZT actuator displacement amplification device. The punching process is easier, faster and more economical way to obtain the desired product shape the another conventional manufacturing processes. The PZT has a characteristic of high speed and reponse as a good actuator in high precision positioning device. In addition to, PZT can generate a superior force and give a fast frequency response above 10㎲. This system devide precision guide module and PZT module. The cymbal-type flexure hinge is used to amplify the displacement of a PZT because of the limited deformation range of PZT. The finite element method was used to determine the cymbal-type flexure hinge stiffness and analyze the mode shape.

다중스레딩 프레임 스케쥴링 정보를 이용한 선반입 방식 캐쉬

최종필(Jong-Pil Choi),하순회(Soon-Hoi Ha),전주식(Chu-Shik Jhon) 한국정보과학회 1997 정보과학회논문지 : 시스템 및 이론 Vol.24 No.5

소프트웨어 방식 다중쓰레딩 수행 모텔에서는 컴파일러에 의해 원격 접근이 구분되고, 빠른 문맥 전환을 통하여 긴 원격참조 지연 시간이 감추어지는 방식이 사용된다. TAM 수행 모델에서는 쓰레드의 지역 메모리 접근이 “프레임”이라는 자료 구조를 통하여 일어나는데, 본 논문에서는 프레임 구조를 위한 캐쉬 메모리를 도입하고, 캐쉬 실패율을 줄이기 위하여 두 가지 기법을 적용하였다. 첫 째는 프레임 스케쥴링 정보에 근거한 선반입 방식이고, 둘 째는 프레임 작업 집합의 개념에 의해 프레임 실행 순서를 바꾸는 것이다. 다중쓰레딩 방식 시뮬레이션을 통하여 벤치마크 프로그램에 대하여 캐쉬 성능 실험을 하였으며, 캐쉬 실패의 원인을 분류하고 분석하였다. 본 논문에서는 스케쥴링 정보에 근거한 프레임 선반입 방식이 캐쉬 실패율을 줄이는 데 매우 효과적임을 보이며, 작업 프레임 집합에 의한 프레임의 실행 순서 변경은 선반입 보다는 덜 효과적임을 보인다. In a software-oriented multithreading execution model, the compiler identifies remote accesses and performs fast context switches to hide high access latency, In the TAM model of execution, threads access local memory through a data structure called a "frame". This paper introduces a cache memory architecture for frame structure and applies two techniques to reduce the cache miss ratio, One is frame prefetching, which is based on frame scheduling information, and the other is changing frame execution sequences by the working frame set concept. Multithreading simulation is performed using a set of benchmark programs and causes of cache misses are classified and analyzed. This paper shows the promising result that the frame prefetching based on scheduling information is very effective to reduce the cache miss ratio. But the effect of reordering the sequence of the frame execution is not so significant than the prefetching.

조기축구동호인들이 인식하고 있는 국내 프로축구 이미지 분석

최종필(Choi Jong-Pil),홍재승(Hong Jae-Seoung) 한국스포츠산업경영학회 2003 한국스포츠산업경영학회지 Vol.8 No.2

본 연구는 국내 프로축구에 대한 이미지를 행동적, 심리적, 평가적, 그리고 부정적인 측면에 대하여 조기축구동우회 회원들이 인식하고 있는 개인적 특성의 차이를 규명하는 것이었다. 표본추출은 경기도 소재 안성시소속 조기축구회 10개클럽 회원들을 모집단으로 선정하여 15일간에 거쳐 편의추출법(convenience sampling method)을 이용하여 193명의 유효표본 수를 얻었다. 측정도구로는 이승진(2001)과 구기용(1999)의 설문지를 수정ㆍ보완하고 50명의 예비조사를 거쳐 최종 연구의 설문지로 사용하였다. 도시도구의 신뢰계수는 행동적 이미지 α=.912, 심리적 이미지 α=.832, 평가적 이미지 α=.855, 그리고 부정적 이미지 α=.735로 나타났으며, 자료분석은 t-test와 일원변량분석(one-way ANOVA)으로 하였으며 Sheffe 사후검증도 추가로 실시하였다. 이상과 같은 연구방법 및 절차를 거쳐 얻은 결과 및 결론은 다음과 같다. 첫째, 조기축구회원들의 연령대별 국내 프로축구 이미지에서는 행동적, 심리적, 그리고 부정적 이미지에 대해서 95% 신뢰수준에서 통계적으로 유의한 차이가 있었다. 둘째, 조기축구회원들의 소득수준별 국내 프로축구 이미지차이에서는 하위 4개 요인에서 모두 통계적으로 유의한 차이를 볼 수가 있었다. 셋째, 직업별로 본 국내 프로축구 이미지의 차이에서는 소득수준과 마찬가지로 하위요인 4개요인 모두 95%의 신뢰수준에서 통계적으로 유의한 차이가 있었다. 넷째, 학력별로 본 프로축구의 이미지의 차이에서는 행동적 이미지 및 평가적 이미지에서 유의한 차이가 있었다. 다섯째, 국내 프로축구 선호팀별로 본 프로축구 이미지에 있어서는 행동적, 심리적 그리고 평가적 이미지에서 통계적으로 유의한 차이가 있었다. 여섯째, 국내 프로축구 시청빈도에 따른 국내 프로축구에 대한 이미지에서는 하위 4개요인 모두 통계적으로 유의한 차이가 나타났다. 일곱째, 프로축구중계 이용매체별로 본 프로축구 이미지에서는 행동적, 심리적, 그리고 평가적 이미지에 있어서 유의한 차이가 나타났다. 마지막으로, 프로축구 이용정보 채널별로 본 프로축구 이미지에 있어서는 행동적, 심리적, 그리고 평가적 이미지에서 통계적으로 유의한 차이가 있다는 것을 볼 수가 있었다. 이러한 결과를 토대로 얻은 결론은 첫째, 국내 프로축구 팬 확보를 위하여 다양한 이벤트나 프로그램을 통한 프로축구에 대한 이미지 개선이 보다 필요하다. 둘째, 특히 저소득층이나, 서비스직 종사자, 그리고 국내 여성팬 확보를 위하여 노력하는 것이 급선무라 여겨지며, 국내 프로축구에 대한 부정적 및 무관심적인 부분의 해소를 위한 노력이 더욱 필요할 것이다. 셋째, 울산 현대, 부산 대우, 그리고 수원 삼성 프로팀은 그들의 고정팬들을 위한 새로운 팀 이미지 개선 및 창출에 노력해야 할 것이다. 마지막으로, 국내에서 활동하고 있는 각 프로축구 구단은 소속축구팀의 보다 좋은 이미지를 갖기 위하여 다양한 TV 프로그램 서비스를 통한 영상매체에 보다 심도있는 노력이 절실히 요구될 것이다. The purpose of this study was to examine the image of Korean pro-soccer team as behavioral, psychological, evaluating, and negative image by soccer club member. To accomplish the purpose, 197 members from ten stratified randomly selected soccer club were surveyed by means of the revised questionnaires. The content validity and reliability were determined by conducting a pilot study. The reliability coefficient was found to be α=.735-.912. The tool utilized a 5 point Likert scale was employed for ascertaining the level of agree that each respondent attached to each item. The following statistical methods were applied by employing the SPSS 10.0V. for the statistical analysis; t-test and one-way ANOVA. The results and conclusion of the this study were as follows; First, there were significant differences behavioral, psychological, and evaluating image by years of age on the soccer club member. Second, there were significant differences at all of behavioral, psychological, evaluating, and negative image by the level of income on the soccer club member. Third, there were significant differences behavioral, psychological, evaluating, and negative image by the occupation on the soccer club member. Forth, there were significant differences behavioral and evaluating image by an academic background on the soccer club member. Fifth, there were significant differences behavioral, psychological, and evaluating image by the occupation on the soccer club member. Sixth, there were significant differences at all of behavioral, psychological, evaluating, and negative image by the preference team on the soccer club member. Seventh, there were significant differences behavioral, psychological, and evaluating image by the utilization of use at hookup on the soccer club member. Finally, there were significant differences behavioral, psychological, and evaluating image by information channel of pro-soccer on the soccer club member. Therefore, First, the manager of pro-soccer team needs to improve the image of pro-soccer by means of various events and new programs for increasing fans. Second, the Korean pro-soccer teams need to increase fans such as low incommir, women, and service-workers, and get rid of negative imgae on the pro-soccer and indifference with it. Third, the Korean pro-soccer teams such as Ulsan Hyundai, Busan Daewoo, and Suwon Samsung have to make a new image on the teams in order to meet the satisfaction of their fans. Finally, the Korean pro-soccer teams should develop their public relation with the media of TV for improving their image.

실버계층 스포츠 참여유형에 따른 건강 인식도 조사

최종필(Choi Jong-Pil),홍재승(Hong Jae-Seung) 한국체육과학회 2003 한국체육과학회지 Vol.12 No.2

This study was to examine the difference in perception of health according to the sports participation patterns and to provide the essential data for enhancing sports participation in elderly and future study. Two hundred subjects were selected through the convenience sampling method in Kyung-ki area from May 1, 2003 to May 8, 2003 and 150 questionnaires were found to be valid and used for this study. The instrument was developed for this study by modifying three instruments used for previous studies which were Kim(1998), Jang(1999), and Roh(1988). Twenty questions were included and Cronbach' s alpha for the instrument were α = .9l1(physical factor), α = .878(mental factor), and α = .915(social factor). Windows for SPSSV. 10.0 was utilized for data analysis and the frequency distribution, t-test, and ANOVA were used for analysis. The findings were as following. First, there was difference for perception of health by gender in physical factor and mental factor and by education level, difference in mental factor and social factor. Also, perception of health by freely spendable income was found to be significantly different in physical, mental, and social factor. Second, perception of health by the purpose of sports participation was found to be significantly different in physical, mental, and social factor and by duration of sports participation, there was difference in physical factor and social factor. Also, there was difference in physical factor for perception of health by the frequency of sports participation and by the type of sports participation, there was difference in social factor.

인구통계학적 특성에 따른 프로축구 관중의 관여도 분석

최종필(Choi Jong-Pil),김애랑(Kim Ae-Rang) 한국체육과학회 2005 한국체육과학회지 Vol.14 No.1

The purpose of this study was to compare the involvement level of Korean pro-football league spectators based on their socio-demographic characteristics. For this research, responses form 383 spectators at four different games of the K-League were used. In order to measure the level of sport spectator involvement, the SSIS (Sport Spectator Involvement Scale) was used after modification. The SSIS basically measures two different aspects of sport spectator involvement which are socio-psychological (Cronbach's α = .90) and behavioral (Cronbach's α = .95) involvement. The Statistical Package for Social Science (SPSS 11.0) was used to analyze the data. A one-way analysis of variance (ANOVA) and a t-test were conducted to determine the differences of the involvement level with respect to the socio-demographics of the sport spectators. The findings of this study were as follows. First, male spectators showed higher socio-psychological involvement than female spectators. Second, the spectators who are single showed higher socio-psychological involvement than the spectators who are married. Third, the spectators who are age of over 40 showed higher behavioral involvement than those who are age of 18 to 19. Fourth, the spectators who came to the game with friends showed higher socio-psychological involvement than the spectators who came to the game with family members. Lastly. the result showed that the spectators who attended more games during the previous season exhibited higher socio-psychological and behavioral involvement than those who attended fewer games.

KLPGA선수들의 에이전트 인식과 미래계약여부의 관계

최종필(Choi, Jong-Pil) 한국체육과학회 2011 한국체육과학회지 Vol.20 No.5

Purpose of this study was to investigate moderating effect on the grade qualification for membership within the Korean ladies professional golf (KLPG) player"s perception toward and future contract with agents. 295 ladies golf players who are belonging to KLPGA (Korea ladies professional golf association) and playing an active part in KLPGA regular tour, Dream and Jump tour were picked for this study. The questionnaire that utilized for attaining this object was composed of KLPG players" agent perception, agent contract, grade qualifications for membership of KLPGA, and general characteristics. Collected data were analyzed the relation between player"s perception and future contract of agents included moderating effect on the qualification grade for membership with SPSS 15.0 and AMOS 7.0. The results were as follows: It has to do with a positive relation between perception and future contract of agent in the KLPG players significantly. But it takes a moderate effect between agent perception and future contract according to qualification grade for membership significantly. In conclusion it was not approved that every KLPG players have a positive perception of agent and contract with agent in the future. It is just professional ladies golf players want to contract with agent for devoting in golf tour consistently and having sponsorship than semi-professional players up to now.