폴리머 슬러리실 혼합물의 내구성 평가

이석근,이광호 경희대학교 산학협력기술연구원 1997 산학협력기술연구논문집 Vol.3 No.-

This study was conducted to evaluate the physical properties of polymer slurry seal mixtures for maintaining a uniform, smooth riding surface with minimal maintenance. The laboratory and the field test were performed to investigate the physical properties and the feasibility. The laboratory tests include Wet. Track Abration Test, Loaded Wheel Test, Cohesion Test, Hubbard Field Test, and Wheel Tracking Test. The results of this evaluation indicate that the polymer slurry seal mixtures perform better than the normal slurry seal without polymer modifier in terms of improvement of cohesion, toughness and breaking times. The result of the field test also shows that polymer slurry seal is superior to any other surface treatment materials which were construructed in the field to compre with polymer slurry seal.

6-hydmxydopamine 파킨슨병 모델에서 Apomorphine의 투여에 따른 회전운동 변화의 시간적 추이

홍근식,김병곤,전범석,윤병우,이광우,노재규,이상복,명호진 대한신경과학회 1999 대한신경과학회지 Vol.17 No.1

한국인 정신분열병과 양극성 기분장애에서 Ciliary Neurotrophic Factor(CNTF)유전자 변이에 관하여

이충숙,신석철,지익성,왕성근,이영호 대한신경정신의학회 2000 신경정신의학 Vol.39 No.4

정신분열병과 양극성 기분장애 같은 주요 정신질환의 발병에서 유전적 요인이 중요하게 작용한다. 최 근 정신분열병과 양극성 기분장애의 원인을 신경병리학적 연구와 신경영상학적 연구를 통하여 신경발달 학인 면에서 이해하려고 시도하고 있다. Ciliary neurotrophic factor(CNTF)는 해마신경원와 내측 중 격신경원을 포함한 다양한 신경세포의 강력한 생명 유지인자로 작용하여 중추신경계의 발달과 유지와 관련이 있는 것으로 여겨지면서, 주요 정신질환의 원인적인 요인으로 제시되고 있지만 이에 대한 연구결 과는 일치되지 못한 상태이다. 이에 저자 등은 한국인 정신분열병 환자 112명과 양극성 기분장애 환자 81명 그리고 정상 대조군 125명을 대상을 CNTF 유전자 변이와 연관성을 알아보고자 본 연구를 시행하여 다음과 같은 결론을 얻었다. CNTF의 유전자형은 정신분열병 환자군에서 N/N 80(70.4%), N/M 32(28.6%), M/M 0(0.0%)이 었고, 양극성 기분장애 환자군에서 N/N 58(71.6%), N/M 23(28.4%), M/M 0(0.0%)이었으며, 정상 대조군에서는 N/N 94(75.2%), N/M 30(24.0%), M/M 1(0.8%)이었다. 대립유전자의 빈도는 정신분 열병 환자군에서 N 192(85.7%), M 32(14.3%)이었고, 양극성 기분장애 환자군에서는 N139(85.8%), M 23(14.2%)이었으며, 정상 대조군에서는 N 218(87.2%), M 32(12.8%)이었다. 3군간의 유전자형과 대립유전자에서 유의한 차이가 없었다. 이러한 연구결과 한국인 정신분열병과 양극성 기분장애에서 CNTF 유전자의 변이가 원인적 요인으 로 작용할 것이라고 볼 수 없었다. Genetic factors play an important role in the development of schizophrenia and bipolar disorder, and recently the neural maldevelopment hypothesis is suggested by neuropathological and neuroimaging studies. Neurotrophic factors, including ciliary neurotrophic factor(CNTF), play a central role in the regulation of neural development. This study was designed to investigate the association between the null mutation of CNTF gene and schizophrenia and bipolar disorder in a Korean population. The CNTF gene were typed with polymerase chain reaction in 112 patients with schizo-phrenia, 81 with bipolar disorders and in 125 healthy controls. The distributions of the CNTF genotype in schizophrenic patients with N/N, N/M, M/M were 80(71.4%), 32(28.6%), 0(0%), in bipolar disorders were 58(71.6%), 23(28.4%), 0(0%) and in the controls were 94(75.2%), 30(24.0%), 1(0.8%). The allele frequencies of the CNTF gene in schizophrenic patients with N and M were 192(85.7%), 32(14.3%), in bipolar disorders were 139(85.8%), 23(14.2%), and in the control were 218(87.2%), 32(12.8%). There were no differences in the genotype distributions and the allele frequencies of CNTF gene null mutation among the 3 groups. These results suggest CNTF gene null mutation is not causally related to the development of schizophrenia and bipolar disorder in Korea.

FENCING선수 SABRE, FOIL의 공격에 대한 연결성 및 포인트 정확성에 관한 비교 연구

李根培,崔太錫 韓國體育大學校 1985 論文集 Vol.8 No.-

The result of our investigation about fencing player's (Sabre, Foil) comparative chart of Offensive extension, point accuracy, accuracy of moving point, 14M distance measurement, and 8M time measurement, are as follows. A. The fente times of sabre was 17.9 and the point was 129.3. And the fente times of foil was 18.2 and the point was 148.6. So, Foil players were more excellent than Sabre players in accuracy. B. In moving point accuracy measurement, sabre players marked 11.8 times 85 point after 20 sec. marches fente. and foil players marked 12.6 times and 96.2 point. As a result, Foil players were more excellent than sabre players in both times and point. C. In 14M distance measurement (offensive extension), Sabre players marked 157.7M and foil players marked 155.7m. And so, Sabre players were better than foil players. D. In 8M speed measurement (sec), sabre players marked 48.27 sec. and foil players 47.8 sec. As a result, foil players were a little better than sabre players. Considering above result, new development of technique and improvement of physical strength and needed urgently.

組織行動과 企業環境의 相互作用에 관한 硏究

李根錫 청주대학교 경상대학 1985 經商論叢 Vol.26 No.-

先天性無顆粒細胞症에 있어서 淋巴球 및 顆粒細胞의 變化에 關한 硏究

李謹洙,玄瑀,石正宇 中央醫學社 1973 中央醫學 Vol.25 No.5

An infant with the rare syndrome of congenital agranulocytosis, eosinophilia, and recurrent infections is reported. Death resulted from overwhelming pneumonia .at the age of 18 months. No cause for hematologic abnormality was found. -Provocation tests utilizing, typhoid vaccine and buffy coat of chronic myelocytic leukemia yielded no alteration in the differential counts of leukocytes.

한국불교전서 전산화를 위한 누락문자 처리방안

이금석,이용규,홍영식,한태식 동국대학교 전자불전연구소 2000 전자불전 Vol.2 No.-

본 논문에서는 한국불교전적 편찬 작업 중 한국불교전서 전산화를 위한 유니코드 기반 문서 편집기를 개발하였다. 유니코드 상에는 27,000자 이상의 한자를 지원하고 있지만, 한국불교전서 입력과정 중에 유니코드만으로 입력할 수 없는 많은 문자들을 발견하였다. 따라서 본 논문에서는 이러한 누락 문자들을 메뉴 처리 방식으로 입력하고 처리하기 위한 기능을 포함하는 문서 편집기를 개발하였다. 이러한 편집기는 유니코드의 누락된 문자를 등록할 수 있고 이를 문서상에 삽입할 수 있게 한다. 누락문자의 폰트는 일본 문자경 연구소(http://mojikyo.jp)로부터 다운로드 받았으며 폰트와 관련된 여러 정보와 함께 로컬 데이터베이스에 저장하였다. 또한 문서상에 삽입된 누락문자는 넷스케이프와 인터넷 익스플로러 같은 웹 브라우저 상에서 나타낼 수 있다.

발전기 운전조건을 고려한 지상 조상설비설치계획의 적정기준 수립

이송근,민석원 순천향대학교 부설 산업기술연구소 1999 순천향 산업기술연구소논문집 Vol.5 No.1

Nowadays cooperative operation of VAR compensation facilities such as shunt reactors, generators, etc is more necessary than ever before under light load condition because line charging capacity is becoming larger due to the expansion of under ground cable in urban area and the construction of 765kV transmission system. In order to accomplish optimal reactive power operation under light load condition without switching off any tranmission lines, proper investment plan of shunt reactors should be established with optimal criteria and methodology since differently adopted criiteria would result in different investment plan especially the amount of shunt reactors. This paper presents the optimal criteria and methodolgy for the shunt reactor planning and compare it with conventional criteria with the practical view point.

除草劑處理에 의한 簡易草地造成에 관한 硏究

李根常,尹益錫 건국대학교 1978 論文集 Vol.7 No.1

This study was conducted to investigate the effects of several herbicides under oversowing and the application methods of Gramoxone as well as effects of burning. These trials were established in 1974 on natural grassland in Che Ju where Miscanthus purpurascens and Imperata cylindrica are dominant and foil type is volcano ash. The results obtained from 3 years experimentation are summarized as follows. 1.Gramoxone, of immediate effect, and Round-up, of slow effect showed similiar effect of weed control and both herbicides did not affect on emergence and early growth of sown species. 2.In case of oversowing, herbicides application did not increase the total dry matter yield but the yield of sown species was increased significantly (P < 0.01). There were, however, no significant differences in grasses yield among different herbicides. 3.In the natural grassland where Miscanthus purpruascens and Imperata cylindrica were dominant, the optimal amounts of herbicides were 400cc in Gramoxone and 600cc in Round-up per 10 a when oversowing method was applied. 4.The times of herbicide application and burning of grassland before sowing did not affect on total dry matter yields, but burning helped emergence and establishment of the sown species compared to no burning. 5.When a pasture was established by oversowing the clover content was higher with herbicide application and increased with increasing rate of herbicides.

장거리 육상선수들의 생리적 특성에 관한 고찰

오창석,이근일 龍仁大學校 1997 용인대학교 논문집 Vol.14 No.-

The purpose of this study is to analyze the statistical contribution of anthropometrical and physiological characteristics underlying 5,000 meter running performance in 5 high schools(group A) and 5 national representative(group B) male distance runners. 1.The relationship between heights(168.80cm vs 169.40cm) in 5,000 meter running performance was not significant in group A and group B, but the relationship between weights(53.80kg vs 59.20kg) in 5,000 meter running performance was significant in grouts B. 2.There were no differences in maximal heart rates(192 vs 192.40) between two groups A and B. 3.There was no significant relationship between VO2 max and 5,000 meter performance for both(76.96㎖/kg/min vs 79.80㎖/kg/min). 4.Blood lactate concentration of recovery phase was shown a significantly high lactate removal ability in group B, compared with group A(P<.02, P<.04, P<.01). 5.It was pointed out that the important causes of anthropometrical and physical attributes were ① before lactate acid ② weight ③ height (r=0.82, -0.75, 0.64) in group A. ① before lactate acid ② recovery blood lactate ③ VO2 max (r=0.75, -0.65, 0.65) in group B in the long distance running performance. As a result, it was been pointed out that a number of anthropometrical and physical attributes such as body size, body composition, running economy, pulmonary function, cardiovascular-respiratory function and running history as well as maximal oxygen consumption are relatively relevant to success in the long distance running performance. Based on the statistical analysis, high school(group A) male distance runners made more oxygen consumption and lactate than those of group B.