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김창식,김우갑,김창환,Kim, Chang-Shik,Kim, Woo-Kap,Kim, Chang-Whan 한국현미경학회 1994 Applied microscopy Vol.24 No.4
The corneal formation of compound eye of Pieris rapae L., which was mostly made during pupal stage, was morphologically investigated with light microscope, scanning electron microscope and transmission electron microscope. The regeneration of the microvilli were found on the surface membranes of corneagen cells and retinular pigment cells of preommatidium after apolysis pupal cuticle. The microvilli were finally differentiated to corneal nipples of the ommatidium. The corneal cuticle was generated on the superficial layer of the preommatidium from corneagen cells and retinular pigment cells. The corneal process was also formed under the cuticular layer from the corneagen cells. The pore canal was appeared within the cuticular layer and connected with the retinular pigment cell as if the root of interommatidial hair was connected. The interommatidial hair was projected randomly among the ommatidial facets and cornal nipple was arrayed regular on the ommatidial facets. The cornea was convex lens and the refracting power by its convex shape was 4 diopter.
배추흰나비 (Pieris rapae L.) 성충 복안에서의 기관지 미세구조
김창식,함의근,이문호,송용직,김우갑,김창환,Kim, C.S.,Ham, E.K.,Lee, M.H.,Song, Y.J.,Kim, W.K.,Kim, C.W. 한국현미경학회 1985 Applied microscopy Vol.15 No.2
The ultrastructure of the trachea of the compound eye in adult cabbage butterfly, Pieris rapae L., was studied. Trachea under the basement membrane is divided into tracheoles of the ommatidia which blanched 4 tracheoles during 2 divisions. Tracheoles of the ommatidia originated from one tracheolar cell and its nuclear is located under the basement membrane and its cytoplasm enveloped the retinular cell and the retinular pigment cell. The modified structure of tracheoles is located at the first division area of the ommatidia and its size is $8{\mu}mX4.5{\mu}m$. And the length of its taenidium is $0.1{\sim}0.6{\mu}m$, diameter $0.15{\mu}m$, and interval $0.3{\mu}m$.
김창식,Kim, Chang-Sik 한국방위산업진흥회 2002 國防과 技術 Vol.- No.278
대부분의 화공부품은 소량 다품종으로 높은 신뢰도를 요구하고, 각각 제한적으로 사용되기 때문에 가격에 비하여 많은 개발비가 소요되어 산업체가 독자적으로 경제성을 기대하여 투자하기란 어렵다. 이러한 어려운 점을 극복하고 국가의 과학 및 방위산업의 지속적인 발전을 이룩하려면 독자적으로 우수한 기술을 선점하고 국제경쟁력을 갖추어 경제성을 갖도록 하여야 한다. 그렇게 될 때까지 주요 핵심기술에 대하여는 경제성에 집착하는 단기 안목을 버리고 정부 차원의 과감한 투자와 지속적 연구개발이 절실하다.
김창식,Kim, Chang-Shik 한국현미경학회 1995 Applied microscopy Vol.25 No.4
Ultrastructure of stemmata(larval eye) of 5th-instar larval in cabbage butterfly, Pieris rapae L, was morphologically investigated with light microscope, scanning electron microscope and transmission electron microscope Six stemmata are on each side of the head. Stemmata V and VI have a Y-shaped sulcus on the surface of their corneal lenses, the others have a columnar shaped process and smooth globular surface. The visual type of stemmata is resembled a single ommatidium of compound eye. The dioptric apparatus are a biconvex shaped cornea and crystalline cone. As a photoreceptor, each stemmata consists of 7 retinular cells arranged into 2 tiers. The first ceil tier of 3 distal retinular cells has formed a V-shaped cup rhabdome and the second cell tier of 4 basal retinular cells has formed a H-shaped fused rhabdome. Each retinular cell filled with pigment granules and contained multivesiclular bodies, coated vesicle and common organelles. The peripheral parts of retinular cells are enveloped by neuroglia cells and retinular cells are surrounded by 3 corneagenous cells. The distal portions of the 3 corneagenous cells contact each other, but the Y-shaped stemmata is separated from each other immediately under the cornea. The 7 axons from each stemma congregate into a bundle and each 7-axon group joins to form a stemmatal nerve, consisting of 42 retinular axons.
김창식,Kim, Chang-Sik 한국군사과학기술학회 2005 한국군사과학기술학회지 Vol.8 No.2
In this study we performed topology optimization and size optimization about support structure of pressure container which is installed in a Common Bed. The optimization study shows that structure weight optimization results can be applied to navy ship. The topology optimization is performed by static load, homogenization and optimality criteria method and size optimization is performed by SOL200 of NASTRAN.