韓國産 미꾸리에 關한 育種·繁殖學的 硏究 : Ⅵ. Histological Changes of Pituitary Gland and Oocytes from March to May Ⅵ. 계절에 따른 암컷의 腦下垂體와 卵母細胞의 組織學的 變化

姜京來,盧淳昌,尹鍾萬,朴弘陽,李相鎬 건국대학교 동물자원연구센터 1993 動物資源硏究誌 Vol.18 No.-

1992년 3월부터 1992년 5월까지 자연적인 채광상태에서 溫度를 유지시킨 후 채취된 미꾸리 암컷의 腦下垂體, 肝 및 卵巢 組織의 번식주기에 일어나는 미세구조의 변화를 광학 및 투과형 전자현미경을 이용하여 살펴보고, 이것들의 相互 聯關性을 알기 위하여 본 연구를 실시하였다. 본 연구에서 얻어진 결과는 다음과 같다. 성숙된 개체의 뇌하수체는 수많은 작은 분비과립과 커다란 분비구 및 불규칙한 형태의 과립들이 관찰되었다. 핵소체가 핵막 주변에 위치헤 있는 후기 단계(LMO)의 난모세포가 난황이 축적되는 성숙초기 단계(EMO)의 난모세포로 변형되는 시기를 난황의 형성이 개시되는 시기로 본다. 난모세포가 성장함에 따라 핵소체의 크기와 난황과립의 수가 증가하게 된다. 난황과립은 결정상의 과립으로 난세포질에 치밀하지 않은 상태로 축적된다. 성숙초기(EMO) 및 말기단계(LMO)에 난소는 커지고 투명하며 과립형태로서 색깔이 연노란색을 나타낸다. 따라서 난 내부를 쉽게 관찰할 수 있다. 방사대(ZR)는 성숙초기단계(EMO)에 단층으로부터 입방형태로 변화된다. 과립막 세포와 난모세포로 부터 유래된 미세융모는 난황형성이 진행되는 동안에 성장하게 되며, 방사대의 pore canals의 구멍을 통해서 서로 연결되어 있다. 따라서 외부로부터 물질의 이동이 있게 된다. 난모세포가 완전하게 성숙되어 방사대가 단단해 지면 미세융모는 그 기능이 상실된다. This study was undertaken to understand the development stages of pituitary gland, liver and ovary of Korean loach(Misgurnus anguillicaudatus) under natural circumstances from March to May 1922. Expecially, the light microscopic and ultrastructural changes of ooplasm and follicular membranes of oocytes, were observed by light and transmission electron microscope during the reproductive cycle. In pituitary gland of mature individuals, there were observed a number of secretory granules,large globules, and irregular masses.The vitellogenic phase began as these late perinucleolus oocytes became transformed into early maturing oocytes through the accumulation of yolk. The size of the nucleoli and number of the yolk granules increased as the oocyte growed. Yolk granules were loosely deposited in the oocyte as crystalline granules. Due to the presence of early and late maturing oocytes, their ovaries were enlarged transparent, granular and yellowish in color. Zona radiata change a squamous into cuboid shape in EMO stage. Microvilli from the granulosa cells and from the oocyte grow and make contact with each other in the pore canals of the zona radiata during vitellogenesis, but are withdrawn as the zona radiata becomes more compact during oocyte maturation.

工業系 中等敎員들의 資格硏修 效果

金種石,李廷玟,李來然,羅聲雄 충남대학교 공업교육연구소 1987 論文集 Vol.10 No.1

The purpose of this study was to investigate the effectiveness of inservice training in order to evaluate the current training program sponsored by the Secondary School Teacher Inservice Training Center. The contents and time of this program was implemented during Summer, 1986. The program was for the teachers to obtain the advence qualification. A total of 405 teachers were registered to the program and the questionnaire developed by the investigators administered to the participants of the program. The content of the questionnaire composed of 1) Personal data, 2) General curriculum, 3) Pedagogical subjects, 4) Subject Specialty, 5) Evaluation method, 6) The conditions and facilities for learning. The findings of this study were as follows; (1) General curriculum facilitated and encouraged the participants to inhence the national morality, comittment to teaching profession and democratic citizenship. (2) Pedagogical subjects facilitated and encouraged the participants to improve teaching skills. (3) Subject specialty area facilitated the participants to improve the knowledge of teaching subject. (4) For the evaluation methods, most participants favored objective test more for the general curriculum and pedagogical subject than subject specialty area. (5) The conditions and facilities for learning were responded unfavorable to the participants especially in computer availability and teaching method of computer.

정신분열병 증상을 동반한 진행성 핵상 마비 1례

박종익,조영래,홍진표,이민규,한오수,이명종 대한신경정신의학회 2001 신경정신의학 Vol.40 No.1

저자들은 환청과 망상을 주소로 정신과를 방문한 진행성 핵상 마비 환자를 진단하고 치료하였다. 진행성 핵상 마비는 보행 장해, 치매, 수직성 안구 운동의 장해가 특징적인 증상이며, 아직까지 특별한 치료법은 알려져 있지 않다. 정신과적 증상으로는 인지기능의 장해, 정동 및 행동의 변화, 수면 장해, 정신병적 증상 등이 있으며 정신분열병과 비슷한 증상을 보이는 경우는 극히 드물다고 한다. 본 증례에서는 파킨슨 증상과 정신병적 증상이 비슷한 시기에 발현된 진행성 핵상 마비의 예를 보고하면서 진단적 중요성을 강조하고자 한다. We have experienced a rare case of progressive supranuclear palsy with hallucination and delusion. The common manifestations of progressive supranuclear palsy are gait disturbance, mental change and sign of vertical ophthamoplegia but no efficacious therapy has been known. Neuropsychiatric symptom clusters include cognitive impairment, affective and behavioral changes, sleep disturbance, and psychotic symptoms. Though schizophrenia-like psychosis has been reported but this is certainly rare. Addressing a case of progressive supranuclear palsy, in whom parkisonian symptoms appeared with concurrent psychotic symptoms, we emphasize accurate diagnosis.

재해사례분석을 통한 빌딩공사 재해 특성

이종빈,노민래,고성석 한국안전학회 2004 한국안전학회지 Vol.19 No.3

Recently, construction work's tendency has become a high-rise building, a complexity and a large size. According to the KOSHA data, construction work accidents have not been decreased. Looking at from the side of accident, accidents of construction industry are occupied over 1/3 among all industry accidents. Therefore, this study will analyze the accident of the building construction work from the data of KOSHA which were collected during 11 years(1992 -2002) data relating to serious accidents of the building construction work, suggest the counterplan according to the each work type in building construction work.

TMS320C80칩을 이용한 이중암 로봇의 실시간 퍼지제어

김홍래,김종수,한성현 한국공작기계학회 2003 한국공작기계학회 춘계학술대회논문집 Vol.2003 No.-

In this paper, a self-organizing fuzzy controller(SOFC) for the industrial robot manipulator with a actuator located at the base is studied. A fuzzy login composed of linguistic conditional statements is employed by defining the relations of input-output variable of the controller, In the synthesis of a FLC, one of the most difficult problems is the determination of linguistic control rules from the human operators. To overcome this difficult, SOFC is proposed for a hierarchical control structure consisting of basic level and high level that modify control rules. The proposed SOFC scheme is simple in structure, fast in computation, and suitable for implementation of real-time control. Performance of the SOFC is illustrated by simulation and experimental results for robot with four joints.

Weibull 分布下의 劣化損失費用을 考慮한 經濟的 生産모델에 關한 硏究

金鍾來 慶南大學校 附設 工業技術硏究所 1983 硏究論文集 Vol.1 No.-

在庫는 計劃期間동안 壽命을 갖는 在庫와 計劃期間內에서 劣化되는 在庫로 分類할 수 있는데, 本 硏究에서는 計劃期間內에서 時間의 흐름에 따라 劣化되는 경우를 다루었다. 그런데 지금까지의 在庫管理 方法에서는 在庫의 保管時 發生되는 品質劣化 損失費用을 保管費로 부터 分離시키지 않고 保管費의 一部로 포함시켜 取扱해왔다. 本 論文에서는 이와같은 不合理한 管理方法을 改善해 보기위하여 品質劣化損先費用을 獨立된 劣化損失費用으로 設定하여 生産準備費, 在庫保管費, 劣化損先費의 合을 最少化하는 經濟的 生産모델에 대하여 硏究하였다. We can classify such type of inventories into case, that is the one in which items becomes absolute at some fixed point in time, the other in which the product deteriorates throught the planning horizon. So, this paper is inventory model by the latter case, at presentation of optimal production period and economic lot size with degradation loss cost of independent. But, from what inventory control method until now, quality degradation loss cost have been handling part of storage cost that was not separated from storage cost to occurrencing during the storage of inventory. This paper separated quality degradation loss cost from the inventory storage cost and that research about the economic production quantity model which was able to minimized sum of production preparation cost, inventory storage cost, degradation loss cost.

異常環境下의 營養問題 硏究(第2報) : 振動이 Serum Cholesterol 量에 미치는 影響

劉貞烈,辛正來 德成女子大學校 1972 德成女大論文集 Vol.1 No.-

혈청 cholesterol량은 비단 식사의 성분에 의하여 영향 받을 뿐만이 아니라 개체의 주위환경조건에 따라서도 많은 영향을 받을 것으로 사려 되기 때문에 진동이 혈청 cholesterol량에 미치는 영향과 또한 제1보 때와 마찬가지로 Caesin, 비타민류, α-Tocopherol, 인삼분말 등의 방호효과도 아울러 검토하였기에 결과를 다음과 같이 결론한다. 1. Basal diet군(백미식군)은 각 첨가군에 비하여 Serum cholesterol량이 낮다. 그러나 인삼첨가군의 Serum cholesterol량이 타군에 비하여 가장 낮은 것은 흥미로운 점이다. 2. 단백질첨가군, 비타민류 첨가군 및 α-Tocopherol 첨가군의 Serum cholesterol량은 Basal diet군의 그것보다 현저히 높다. 3. α-Tocopherol 첨가군을 제외하고 다른 모든 군의 경우 진동군이 비진동군에 비해서 Serum cholesterol량이 현저히 높다. 4. α-Tocopherol 첨가군의 경우에는 진동군과 비진동군 간에 별 차이가 없는 것으로 보아 α-Tocopherol은 진동으로부터의 Serum cholesterol량 변화를 막아주는 것으로 사려 된다.

선삭가공시 플랭크 마모에 따른 AE 신호와 절삭력의 거동에 관한 연구

원종식,정윤교,조종래 창원대학교 공작기계기술연구센터 1999 연구업적집 Vol.1 No.1

Automatic monitoring of cutting process is one of the most important technologies for increasing the stability and the reliability of unmanned manufacturing system, In this study, basic methods which use the acoustic emission (AE) signals and cutting forces were proposed to monitor flank wear (width of flank wear) quantitatively. First, in order to detect flank wear, it was investigated that the influence of cutting conditions, that is, cutting velocity, feed and depth of cut, on AE signals (AErms) and cutting forces. Futhermore, the relation between flank wear and the measured signals (AErms cutting force) was discussed.

폴리설폰 중공사막에 대한 산소/질소 혼합물의 분리

김종수,송근호,이광래 江原大學校 附設 環境硏究所 1999 環境硏究 Vol.16 No.-

국내 K-그룹 연구소에서 제조한 폴리설폰 중공사막의 산소/질소 혼합물에 대한 압력, stage cut, 공급기체 혼합물의 조성에 따른 분리성능을 조사하였다. 본 실험의 압력범위와 온도 30℃에서의 이상분리인자(O₂/N₂)는 5.7이었으며, 유입기체 혼합물의 21 mole% 산소농도가 약 50 mole%로 농축되었다. 저압츠과 고압측의 압력비는 산소농축에 미치는 영향이 적었으며, 이상분리인자의 영향은 매우 컸다. 그러나, 이상분리인자가 증가함에 따라 이상분리인자의 영향은 둔화되었다. 따라서, 이상분리인자가 큰 신소재 개발과 더불어 공정변수의 최저화가 필요하다. 수학적 모델링에 의한 예측치와 실험치가 잘 맞았다. The performance of the polysulfone hollow-fiber membrane manufactured by K-group Research Institute in Korea was investigated for the separation of O₂/N₂mixture as a function of pressure, stage cut, and feed gas composition. The ideal separation factor(O₂/N₂) at temperature 30℃ was around 5.7 in the pressure ranges studied. Oxygen concentration of 21 mole% in feed stream was concentrated to about 50%. Although the pressure ratio between high and low pressure side showed little effect, ideal separation factor showed greater effect on the oxygen enrichment. However, the effect was declined with increase in the ideal separation factor. Therefroe, the optimization of process variable is necessary as well as development of new material with high ideal separation factor. It was fond that experimental data were well correlated with the prediction of mathematical model.

海藻의 組織培養에 關한 硏究 : (Ⅰ)2.4-D가 김 葉體의 細胞分裂에 미치는 影響

金重來 군산대학교 1980 群山水産專門大學 硏究報告 Vol.14 No.1

The present research was attempted for the purpose of inducing callus from Porphyra-frond through tissue culture method. At first, the effects of 2.4-D on the cell-division of Porphyra-frond were studied. The materials were cultured for 8 weeks in sea water medium which prepared with reference to M.S and K.T medium for Porphyra, and supplemented with each density of 2.4-D. The results obtained were summarized as follows. 1) The cell-division of Porphyra-frond was promoted markedly and grew most vigorously in medium supplemented with 0.01mg/ℓ 2.4-D. 2) Their vegetative cells were comparatively healthy, and no changes found in size or forms. 3) Callus was not induced from the young-thalli of Porphyra.