조혈모세포이식환자에서 조혈기능의 회복과 관련된 인자들에 관한 연구

정기주,강명수,권기두,김경하,이상철,김현정,배상병,김찬규,이남수,이규택,원종호,홍대식,박희숙 순천향대학교 의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.1

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균열크기 측정기법 개발에 관한 연구

남민우,조찬희,정한섭,김홍덕,신기석 한국비파괴검사학회 2004 학술대회 논문집 Vol.- No.-

본 연구는 증기발생기 건전성 향상기술 개발 과제 일환으로 진행중인 고리 1호기 구 증기발생기 인출 전열관을 대상으로 하는 Round Robin Test의 사전 시험을 위해 수행하였다. 균열결함에 대한 검출 및 크기측정의 기준을 설정하기 위해 SGMP Mock-Up를 제작하였고 신호수집한 Data를 증기발생기 전열관 가동중검사 업무를 수행하고 있는 와전류신호평가자들 4개조가신호평가에 참여하였으며, 그 결과를 요약 정리하였다. 본 연구에서 SGMP Mock-Up Data Crack Sizing의 목적은 고리 1호기 구 증기발생기 전열관을 대상으로 시행될 Round Robin Test 전에 결함 기구별 균열결함의 특성 이해 및 균열결함이 여러 유형의 외부 환경에서 나타나고 있을 때의 균열결함에 대한 정량적인 크기 측정값의 바람직한 모델 적용을 확인하기 위함이다. SGMP Mock-Up에 적용한 와전류검사는 Robbin 및 MRPC 검사를 포함하였다. 본 연구의 주 목적인 MRPC 데이터를 이용한 균열깊이 평가에 2개조는 위상각-깊이 분석법을 적용하여 신호평가를 수행하였고, 2개조는 위상각-깊이 분석법 이외에 진폭-깊이 평가 기법을 적용하여 SGMP Mock-Up에 대한 최적의 기법을 설정하였다.

잡견에서 Rapid Atrial Pacing에 의한 심방의 전기적 재현성과 이의 회복

남기병,김동운,차성일,이석재,홍종면,임승운,나기정,조명찬 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.6

전기 치수 검사 시 역치 자극 이후 과용(過用) 자극 시간의 측정

남기창,안선희,김수찬,김덕원,이승종 大韓齒科保存學會 2004 Restorative Dentistry & Endodontics Vol.29 No.3

Use of electric pulp testing elicits painful response in vital teeth. In this study, we examined the excessive time from pain feeling to stimulation disconnection in clinical situation. D626D (Parkell Inc., USA.) scan type electric pulp tester was used in total of 23 young healthy individuals. Each of the right central incisors and first premolars were used as testing teeth. Stimulation disconnection was achieved by EMG in anterior belly of digastric muscle, finger span, and voice and the excessive stimulation time over the sensory threshold was recorded. As a result, we found that the short responses before the stimulation disconnection appeared following order: EMG, finger span, and voice. The EMG disconnection is suggested to be used to reduce the excessive stimulus time in electric pulp testing.

기업의 "핵심역량 집중도"와 "IT 아웃소싱 성숙도"가 IT 아웃소싱 성과에 미치는 영향에 관한 연구

남기찬,오승호 서강대학교 경영연구소 2004 서강경영논총 Vol.15 No.2

正氣天香湯 및 加味正氣天香湯의 效能에 대한 實驗的 硏究

朴贊基,權貞南,金榮均 한국한의학연구원 1997 한국한의학연구원논문집 Vol.3 No.1

Effects of Jeongkicheonhyangtang and Kamijeongkicheonhyangtang have been experimentally studies. The results have been obtained as follows: 1. It is proved that analgecic effect on sample I group and sample II group are clearly decreased than control group. Thus, the statistically significant decrease is p<0.005. 2. It is proved that anti-inflammatory effect on sample I group and sample II group are decreased compare to control group. Thus, the statistically significant decrease of sample I group is p<0.05 in 30 and 60-minute, p<0.01 in 90-minute, and p<0.005 in 12 and p<0.005 in 90, 120 and 180-minute. 3. It is proved that appearance of gastric ucler is decreased compare to the control group and the statistically significant decrease is p<0.05. 4. It is proved that plasma epinephrine contents of sample I and II group are clearly decreased compare to the Control Group and the statistically significant decrease is p<0.005 5. It is proved that plasma norepinephrine contents of sample I group is drastically decreased compare to the control group and the statistically significant decrease is p<0.005. 6. It is proved that plasma dopamine contents of sample I and II group are decreased than the control group and statistically significant decrease of the sample I group is p<0.005, and those of the sample II group is p<0.05. As the above mentioned results of experiment, it is believed that Jeongkichenhyang and Kamijeongkicheonhyang have effect for stress.

부하병렬공진(LCC형) 이용한 고주파 DC-DC 컨버터의 특성해석

金重基,朴贊圭,南承植 영남이공대학 1997 論文集 Vol.26 No.-

This paper proposes the LCC type high frequency resonant DC-DC converter using Power MOSFET as switching devices, and describes the characteristics and operating principles. LCC converter has the resonant capacitor instead of a source decoupling capacitor in the conventional half bridge parallel resonant converter. This paper also shows an example of the converter design by the data, obtained from characteristic values. We performed an experiment to prove the propriety of proposed converter. As a result of comparison simulation waveforms with experimental waveforms, experimental results show that the tendensy of circuit analysis is correspond to the simulation waveforms.

경희대학교 수원캠퍼스 노천극장 기본계획

김동찬,이윤수,장동주,강남욱,민창기,김용옥 경희대학교 디자인연구원 2003 예술· 디자인학연구 Vol.6 No.1

The aim of this study is to design an open-air theatre to satisfy the demand of students about a place for events in Kyunghee University, Suwon campus. Furthermore, rapid growth of Suwon campus has been requested a suitable place for outdoor amphitheatre. The entire design of Kyunghee University campuses pursuit renaissance style, hence Greek and Roman styles were considered in this study. To make the open-air theater as a useful and distinctive place, the following design elements have to be considered: aesthetic, functional, subjective, symbolic and practical use of the theatre.

폐석재와 석분을 사용한 식생블럭 제품 개발

성찬용,류능환,연규석,윤준노,김영익,남기성,노경희,박일순 강원대학교 부설 석재복합신소재 제품연구센터 2002 석재연 논문집 Vol.7 No.-

본 연구는 폐석재와 석분을 사용하여 친환경적인 식생블럭 제품을 개발하기 위하여 폐석재의 입경과 석분의 첨가량을 각각 3종류씩 총 9종류의 식생블럭에 대하여 단위중량, 공극율, 투수량, 압축강도, 쪼갬인장강도, 휨강도, 내산성, 알카리농도에 대하여 구명하였다. 단위중량, 강도, 내산성은 골재의 입경이 작을수록 석분의 혼입량이 많을수록 크게 나타났으며, 공극율과 투수량은 작게 나타났다. 강도는 중성화 처리 유무에 따라 4∼5% 정도의 미소한 차이가 나타났다. 알카리 농도는 중성화 약품처리, 수중용출, 야외폭로 순으로 효과가 크게 나타났으며, 이는 식생블럭의 중성화 방법 선택에 매우 중요한 내용이라 할 수 있다. 또한, 식생상태는 공극율과 골재의 입경이 큰 식생블럭이 생육에 유리한 것으로 나타났다. This study was performed to develop the environment-friendly plantable block and to evaluate unit weight, void ratio, permeability, strength, acid-resistance and value of pH by the change of the grading of waste stone and the addition amount of stone dust. The unit weight, strength, acid-resistance is increased with small size of waste stone with increase of the addition amount of stone dust. But, the void ratio and permeability is decreased. The strength of neutral plantable block is decreased approximately 4-5% than that of the normal plantable block. The decreased effect of pH increased in order to neutral treatment, underwater leaching and field exposure. It is very important contents in neutral method selection of plantable block. Also, the planting state is grown rapidly with increase of the void ratio and of the waste stone size, approximately.

복합레진의 조건등색에 관한 연구 : D_(65), A, C, FCW and TL84

박기정,황윤찬,김선호,오원만,황인남 전남대학교 치의학연구소 2003 구강과학 Vol.15 No.2

There were problems in selecting exact colors of composite resins currently used in clinic by examining with naked eyes. This study was done to present a criterion in selection of the most proper light sources and materials by measuring metamerism index of the light curing composite resins with spectrocolorimeter. Metamerism is present when two objects appear to be the same color in one illuminant but different in another. This is due to the fact that they have different spectral curves that fail to match under the second illuminant. In this study, five light polymerized composite resins; Esthet-X, Filteck Z250, Filteck A110, Charisma, Vitalescence which are currently used in clinic were chosen based on Vita shade. Five samples were made for shade of each product with Teflon mold(diameter: 15mm, thickness: 2mm). Compressed resins with glass slab were light polymerized with a visible light curing unit(Optilux 500, 13mm tip diameter, Demetron, USA) for 60 seconds. Polymerized samples were removed and those were grinded to 2.0mm in thickness with sand papers(#600 & #1000). Samples were carefully prepared without fingerprints and impurities in grinding procedure and kept in distilled water for a week at room temperature. Metamerism index of each samples on a Barium sulfate plate(L^(*)=96.54, a^(*)=0.19, b^(*)=0.01) prepared for sample fixation were measured with spectrocolorimeter(Miniscan XE plus. Model 4000s. Hunter Lab, USA) by applying standard light source D65, C, Fcw, TL84' and A. Standardization was done with Reference standard(X=80.8, Y=85.7, Z=90.8) and Light trap. Samples were kept in distilled water at room temperature in all procedures. The results are as follows. 1. Different resins using same Vita shade showed recognizable color difference(ΔE^(*)>2). 2. All composites had Ml below accepted value 0.5 between standard illuminant(D65, C, & A) and below 1.5 under fluorescent condition (Fcw & TL84). 3. Ml value between D65 and A showed higher value than Ml value between other source of light(p<0.01). 4. All resins except Z25O showed Ml value that A3 is higher than Al between D65 and A(p<0.05).