유전 알고리즘의 수렴율 향상을 통한 구조물 최적설계

이진식,이병우 동의공업대학 1998 論文集 Vol.24 No.1

This paper presents the genetic algorithm for structural optimum design with advanced convergence rates. Genetic algorithm have become popular in the field of structural optimum design owing to their simple characteristics. And they are fast converged to the near global optimality point, without auxiliary information such as differentiation of function But methods oscillate in the region of optimum point so that the speed of convergence decreases. To overcome the oscillatory problem, the proposed methods take the superior strings in the previous and current iterations. Applications of this method to three example problems are presented. The results were compared with those of the simple genetic algorithm and the recursive quadratic programming method

[연재 - KEC 해설 2] 한국전기설비규정(KEC) 배선설비의 설계 및 공사방법에 관한 기술지침

이진식 대한전기협회 2019 전기저널 Vol.- No.512

慶北 永川郡 大勝池에서 採集한 淡水魚의 吸蟲類 肝吸蟲 被囊幼蟲 奇生狀의 變動

李鎭植,文柱煥,鄭東一,崔東翊 慶北大學校 醫科大學 1991 慶北醫大誌 Vol.32 No.3

1990年 4月부터 同年 9月까지 慶北 永川郡 大勝池(사근다리못)에서 採集되는 各種 淡水魚에서 肝吸蟲 被囊幼蟲의 寄生狀을 調査하여 1980年 同貯水池에서 調査한 成績과 比較한 바 採集魚種과 寄生狀의 差異를 觀察하였으므로 報告하는 바이다. 1980년 大勝池에서 採集된 魚種은 붕어(Carassius carassius), 강준치(Erythroculter erythropterus), 버들치(Moroco oxycepharus), 납지리(Paracheilognathus rhombea), 참붕어(Pseudorasbora parva), 참중고기(Sarcocheilichthys sinensis)의 6種이었으나 1990年에는 붕어, 파랑볼우럭(Lepomis macrorchirus), 참붕어의 3種만이 採集되었다. 1980年에 採集한 淡氷魚에서의 肝吸蟲 被囊幼蟲의 寄生率과 寄生程度는 강준치 25.0%, 5.4개, 납지리 13.0%, 0.5개, 참붕어 71.1%, 24.4개, 참중고기 46.7%, 5.8개였고, 1990年에는 참붕어에서만 25.0%, 7.7개로 檢出되었다. 以上의 成績으로 미루어 보아 大勝池는 지난 10年間 生態界가 變化하였고 그간에 移植된 파랑볼우럭이 生態界變化에 多少의 影響을 미친 것으로 생각된다. From April to September, 1990, fresh-water fish were collected in Daesong pond and examined for the presence of Clonorchis sinensis metacercaria in order to compare the infestation with C. sinensis metacercaria with that in 1980. Six species of fresh-water fish, Carassius carassius, the crusian carp, Erythroculter erythropterus, the white fish, Moroco oxycepharus, the fat minnow, Paracheilognathus rhombea, the flat bitterling, Pseudorasbora parva, the southern top-mouthed minnow, and Sarcocheilichthys sinensis, the oily shiner, had been collected in the pond in 1980. In 1990, however, only 3 species of fresh-water fish, C. carassius, P. parva and Lepomis macrorchirus, the blue gill, were collected. The rates and intensity of infestation with C. sinensis had been 71.1% and 24.4 cysts per gram of flesh in P. parva, followed by 46.7% and 5.8 in S. sinensis, 25.0% and 5.4 in E. erythropterus, 13.0% and 0.5 in P. rhombea in 1980. The metacercaria were demonstrated from P. parva alone, with the rate 27.3% and the intensity 7.7, in 1990. In the light of these results, it is likely that L. macrorchirus caused the ecosystem of the pond to be changed.

한국전기설비규정(KEC) : 배선설비 설계 및 공사방법

이진식 대한전기학회 2019 대한전기학회 학술대회 논문집 Vol.2019 No.04

Arbitrage Pricing Theory의 OR的 發展

李鎭植,金貳南 Natural Science Research Institute JEONJU UNIVERSI 1990 전주대학교 자연과학연구소 학술논문집 Vol.3 No.1

The capital evaluation theory through the theoretical approach of Neo-classicists has been developed arond MM theory, CAPM, APT and OPM. CAPM estimates the assets by examining the condition of balance in the capital market and market portfolio. CAPM however can not solve the problem of normal distribution of various changes in the assets income and that of the secomd effect function in the preferance of economic subject. Therefore, it has been essentical to justify CAPM theoredtically and practically. APT has been deviced to overcome these difficulties. This study will examine two types of theortical development of ROSS's basic model. The purpose of this study is to clarify the theortical structure of APT, especially through the viewpoint of decision and balance.

冷凍食品會社에서 效率증진을 위한 改善活動에 관한 硏究

이진식 전주대학교 1999 論文集 Vol.24 No.2

Glucagon 및 Cycloheximide 投與에 의한 흰쥐 肝細胞 lysosome의 變化에 관한 超微形態學的 硏究

이진식,김익동,배한익,서인수,김중길,곽정식,손태중 慶北大學校 醫科大學 1983 慶北醫大誌 Vol.24 No.2

저자는 체중 30∼35gm 정도의 ICR계 생쥐에 체중 100gm당 100㎍의 glucagon을 그리고 체중 100gm당 0.15mg의 cycloheximide를 각각 단독으로 또 이들을 같이 복강내에 병합 투여하여, 이때 간세포에 일어나는 형태학적 변화와 아울러 lysosome막의 유래의 일단을 알아보기 위한 실험성적을 요약하면 다음과 같다. 광학현미경적으로는 중심정맥 주위의 간세포이 종창과 한국성 지발변화가 나타났었는데, 그 정도는 glucagon 단독투여군과 cycloheximide와 glucagon을 병합투여한 군에서는 다같이 중등도로 일어났었다. 전자현미경적으로는 glucagon 단독투여 군에서는 간세포에 있어서의 lysosome의 현저한 증가, 특히 autophagic vacuole의 증가, 세포핵의 비대 및 핵소체수의 증가, 그리고 kupffer세포의 탐식 작용의 증가등이고 cycloheximide 단독투여군에서는 경한 lysosome의 증가, RER의 확장, 단열, ribosome의 탈락, free ribosome의 증가, Golgi complex의 위축, SER의 감소, mitochondria의 종창 및 공포화와 lipid droplet의 증가 등이다. 그리고 glucagon과 cycloheximide 병합투여군에서는 상기한 두가지 단독투여군의 소견과 여기에 더하여 peroxisome의 증가가 일어났으며, 이들 변화중 특히 autophagic vacuole의 증가는 glucagon 단독투여군보다 좀더 현저한 경향이었다. 이상의 연구성적으로 보아, glucagon은 간세포에 있어서 autophagy를 증가시킬 뿐 아니라, 핵에도 작용하여 그 비대를 일으키며, 이때 cycloheximide를 투여하여 단백합성을 억제하여도 autophagy를 저해하지는 않는다고 믿어진다. 따라서 autophagic vacuole의 한계막은 새롭게 신생된다기 보다는 세포내의 기존의 막, 예를 들면 SER, RER, Golgi막등 막성 성분에서 유래될 가능성이 지금으로서는 더 많은 것으로 생각된다. Glucagon은 autophagic vacuole을 증가시킬 뿐 아니라, cycloheximide를 투여한 후 glucagon을 투여한 경우에는 autophagic vacuole의 증가와 더불어 peroxisome도 증가시킬 것으로 추정된다. In order to investigate the morphologic changes and origin of membrane of lysosomes, the author administered glucagon, 100㎍ per 100gm of body weight, cycloheximide, 0.15㎎ per 100 gm of body weight and both to the healthy male ICR mice intraperitoncally. Each hepatic tissue was observed by light microscope and electron microscope. The results were summarized as follows. Light microscopically, swelling of heaptocytes and focal fatty change appeared around the-central vein. The severity of these changes was mild in the group administered glucagon and was moderate in groups administered cycloheximide alone, both cycloheximide and glucagon. Electron microscopically, in the group administered glucagon, marked increase of lysosomes, particularly autophagic vaculoles, enlargement of nuclei with increase of nuclcoli in thc hepatocytes and increase of phagocytosis in kupffer cells were appeared. In the group administered cycloheximide, slight increase of lysosomes, dilatation and fragmentation of RER, shedding of ribosomes, increase of free ribosomes, atrophy of Golgi complex, decrease of SER, swelling and vacuolizatlon of mitochondria, and increase of lipid droplets occured. In thr group aiministered both cycloheximide and glucagon, above findings in each group and additional increase of peroxisomes appeared. In these changes, increase of autophagic varuoles was more prominent in the group administered glucagon. From the above results, it is believed that glucagon induces enlargement of nuclei as increase of autophagy in the hepatocytes. At this time, in spite of suppression of protein synthesis by administration of cycloheximide, the autophage was not inhibited. Therefore it is more possible that the limiting membrane of autophagic vacuoles originates from preexisting membrane rather than front de novo synthesis. when glucagon was administered after administration of cycloheximide, peroxisomes as well as autophagic vacuoles were increased.

연구논문 - 무기 / 촉매 : 천연 rutile sand 로 부터 소성법에 의한 육티탄산칼륨 섬유의 합성

이진식,이철태,이상문 ( Jin Sik Lee,Chul Tae Lee,Sang Moon Lee ) 한국공업화학회 1995 한국공업화학회 연구논문 초록집 Vol.1994 No.1

45° 및 90° 충돌분사에서의 난류유동에 대한 실험적인 비교고찰

李鎭植 Natural Science Research Institute JEONJU UNIVERSI 1986 전주대학교 자연과학연구소 학술논문집 Vol.1 No.1

In cross angle 45° and 90°, When two jets issuing in the uniform velocity are crossed it was experimentally compared with that the mean velocity and fluctuating velocity distributions, the intensity of turbulence were measured and analyzed in front and rear region of the point of the center line, at Reynolds numbers; 3.28 x 10 exp(4). And Momentum fluxes at each position along the axis were investigated. So the mean velocity, the values of the flutuating velocity and the intensity of turbulence were found much larger difference in the width or maximum values between cross angle 45° and 90°. And the momentum fluxes were slightly decreased in both cross angles, but they were also appeared by large difference by dint of collision in cross point area. However after the fully mixed flow region they were getting better gradually same values along the X-axis.

저압직류(LVDC) 배전기술의 국제표준화 동향

이진식,이주철 한국조명·전기설비학회 2018 조명.전기설비 Vol.32 No.4