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오병훈,권준수,남궁기,김승현,지익성,김창윤,하규섭,박원명,김성곤,오강섭,김정범,이수정,정한용,이창욱,박용천,이영문,김세주,이병욱 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.5
Four Years Reports of "Journal of Korean Neuropsychiatric Association" during 2001 to 2005 were evaluated by 18 Editorial Board of Korean Neuropsychiatric Association. We investigated the articles to specific fields and rejection rate etc. by different section chiefs. Although several problems concerning review time duration and rejection guideline issues indicated but generally all reviewer processes proved relatively clear and concise criteria. Through these objective and systematic evaluation Processes, "Journal of Korean Neuropsychiatric Association" will develop a good journal.
李龍福,金慶燮 弘益大學校 科學技術硏究所 2000 科學技術硏究論文集 Vol.11 No.-
Fatigue failure modes of symmetrical LOP fillet weldments are dependent on the characteristics of the fatigue crack initiation and propagation from the weld toe or the weld root. In this study, constant amplitude fatigue tests on symmetrical LOP fillet weldments carried out, and fatigue properties were evaluated. Also, an attempt was made to develop the fatigue strength and fatigue life of symmetrical fillet weldments containing lack of penetration. From the result of this study, fatigue crack growth characteristics of symmetrical LOP fillet weldments are found to be affected by the weld geometry, stress range and microstructures of the welding zone.
2004년 7월 봇돌바다의 영양염과 Chlorophyll-a의 단기 변동
최용규,조은섭,권기영,이용화,이영식 한국환경과학회 2005 한국환경과학회지 Vol.14 No.4
In order to study the temporal variations of nutrients and chlorophyll-a in the Bottol Bada, three field observations were carried out on 20, 23 and 26 July, 2004. The low N:P values exhibit nitrogen deficiency during the periods of observation. This result is not representative of typical summer environment in the southern coast of Korea. The possible mechanisms are as follows: 1) The freshwater inflow was not sufficient for the supply of nitrogen because the total precipitation was 11.9 mm in July, 2004. This amount is no more than 5% in normal precipitation in July. 2) There was an inflow of oceanic water under the subsurface into the Bottol Bada. Even though the oceanic water comprises more nutrients, it produces the stratification between the surface and the subsurface water and seems to prevent the supply of nutrinets to the surface layer. 3) The high chlorophyll-a concentration of 1.2 ㎍/L was shown near the narrow channel between Gae-do and Geumo-do. This seems to be resulted from the inflow of water from Gamak Bay.
송윤섭,박영호 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.1
Nocturnal enuresis is a symptom rather than a disease. Lots of theories have been proposed to explain why children with nocturnal enuresis fail to recognize or respond to their full or contracting bladder during sleep. Although these theories, which include behavioral, genetic, developmental, neurologic, psychological, urodynamic, and organic causes, are diverse and may be able to explain selected cases, there is no single explanation for this symptom, and in each individual multiple factors may be operative. Clearly, the vast majority of children with nocturnal enuresis do not suffer from psychiatric, neurologic, or urologic disturbances, and investigation and treatment along these lines is both inappropriate and unrewarding. A number of treatment modalities have been used for nocturnal enuresis, but their effectiveness, even in controlled studies, has been difficult to assess because of the high spontaneous annual remission rate (15%) and the extremely high placebo improvement effect, which can exceed 65%. Proven, reproducible, and effective therapy has evolved along two lines: drug therapy and behavioral modification. The physician who cares for patients with enuresis must develop an orderly, practical, and effective approach to evaluating and treating the children who present with nocturnal enuresis.
차동-구동 이동 로보트에 대한 Cross-Coupling 동작 제어기의 설계
정용욱,정구섭 진주여자전문대학 1997 論文集 Vol.20 No.-
We describes the design and implementation of Cross-Coupling controller for differential-derive mobile robot. Controller directly minimizes the siginificant error by coordinating the motion the drive wheels. Robot motion error classified into internal and external errors. Cross-Coupling control method is used to compensate for the internal errors that can be detected by wheel encoders. Simulation are conducted to evaluate the control system and the results show improvements over conventiona1 controllers.
수종 표면 보호재의 도포가 광중합형 유리 아이오너머 수복물의 변연 누출 및 미세 경도에 미치는 영향
김기섭,김용기 大韓小兒齒科學會 1997 大韓小兒齒科學會誌 Vol.24 No.3
The purpose of this study was to evaluate the efficacy of several surface coating agents in preventing microleakage and increasing microhardness of light-cured glass ionomer restoration. 50 and 25 sound molar teeth were used for the microleakage test and microhardness test respectively. Data were analyzed statistically using Kruskal-Wallis and/or Mann-Whitney test. The results of the present study were as follows: 1.The effect of surface coating in reducing microleakage was proven only at the gingival margin of restorations with statistical significance(p<.05) 2.The distribution of microleakage score at gingival margin was shown to be better than that of occlusal margin in general but with no statistically significant differences(p>.05) 3.No statistically significant differeces in microhardness could be found between groups(p>.05) regardless of depth of measurement. 4.Under the present experimental conditions, the types or application of surface coating agents did not impose any significant effect on microhardness of glass ionomer restorative material whereas the protective effect of surface coating in reducing microleakage was partly proven.
Sequence sampling에 의한 단결정(Al_2O_3) 성장 제어
조현섭,송용화,민병조 호서대학교 반도체제조장비국산화연구센터 2000 학술대회 자료집 Vol.2000 No.1
It is a quite quality concerning to control temperature of single crystalline it does when you get most of heat treating products. It is also important control temperature when you make the Al203(single crystalline) used to jewels, glass of watches, heat resistant transparent glasses. Thus, it is a ma, to get the proper temperature in accordance with the time process while making mixture of oxygen and hydrogen to have the right temperature. In we will study of electrical valve positioning system for the gas mixture to im quality of products.
다이아몬드상 탄소 박막이 코팅된 실리콘 전계 방출 소자의 특성
최만섭,김진호,김용상 명지대학교 대학원 1997 대학원논문집 Vol.1 No.-
We have fabricated the field emitter arrays (FEAs) coated with diamond-like carbon (DLC) films. The turn-on field of DLC-coated FEAs was rapidly decreased and the emission current was remarkably increased compared with the non-coated silicon FEAs. In the nitrogen doped FEAs, the turn-on field decreased and the emission current increased with nitrogen doping concentration. From the Fowler-Nordheim plot, the work functions of the DLC-coated FEAs are much lower than those of the non-coated silicon FEAs. As nitrogen doping concentrations are increased, the work function of FEAs is decreased and the field emission properties are improved in nitrogen doped DLC-coated FEAs. This phenomenon is due to the fact that the Fermi energy level moves to the conduction band by increasing nitrogen doping concentration.