• Title/Summary/Keyword: metamorphosis

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A Examination on Stability of Dam using 3D Laser Scanning System (3D Laser Scanning을 이용한 댐체의 안정성 검토)

  • Lee, Jae-One;Shon, Ho-Woong;Yun, Bu-Yeol
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2007.04a
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    • pp.451-454
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    • 2007
  • There is an inseparable relation between human race and engineering work. As world developed into highly industrialized society, a diversity of large structures is being built up correspondently to limited topographical circumstance. Though large structures are national establishments which provide us with convenience of life, there are some disastrous possibilities which were never predicted such as ground subsidence and degradation. It is very difficult to analyze the volume of total metamorphosis with the relative displacement measurement system which is now used and it is impossible to know whether there is structural metamorphosis within a permissible range of design or not. In this research with an object of 13-year-old earthen dam, through generating point-cloud which has 3D spatial coordinates(x, y, z) of this dam by means of 3D Laser Scanning, we can get real configuration data of slanting surface of this dam with this method of getting a number of 3D spatial coordinates(x, y, z). It gives 3D spatial model to us and we can get various information of this dam such as the distance of slanting surface of dam, dimensions and cubic volume. It can be made full use of as important source material of reinforcement and maintenance works to detect previously the bulging of the dam through this research.

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Deformation of Ocean Object Using Anisotropic Metacube (비등방성 메타큐브를 이용한 해양 객체 변형 방법)

  • Youn Jae-Hong;Park Ju-Yeon;Kim Eun-Seok;Hur Gi-Taek
    • The Journal of the Korea Contents Association
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    • v.6 no.9
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    • pp.164-173
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    • 2006
  • As the CG images in the films and the games are getting more realistic by the development of computer graphics, the requests of technique that can develop the various digital contents has also increased. However, the techniques developed for the studies and simulations of the ecological system and adaptation in the ocean, are insufficient compared with those on the ground. This paper propose a method of modeling to simulate the growth of ocean objects according to the variation of virtual ocean environment and the efficient metamorphosis based on the movement of the objects. By modeling the ocean objects with the anisotropic metacubes, it is possible to represent easily the growth and metamorphosis of fishes as the movement in the virtual environment of ocean.

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An Endocrinological Study on Metamorphosis of the Midgut in Silkworm, Bombyx mori (가잠의 중장변태에 관한 내분비학적 연구)

  • 성주일
    • Journal of Sericultural and Entomological Science
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    • v.26 no.1
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    • pp.30-34
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    • 1984
  • In order to investigate an endocrinological effect on metamorposis of the midgut in silkworm, Bombyx mori, 20-hydroxyecdysone and rude extract of brain (PTTH) were injected into pupal isolated abdomens, devoid of prothoracic glands and also in the brainless diapausing pupae with the prothoracic glands (so-called dauer pupae). When ecdysone was assayed abdomens, drastic morphological changes occurred in the midgut. The wet weights of midguts were found decrease as like the normal pupae at metamorphosis. Proteineous changes in epithelial midgut were also observed; pupal specific proteins (PSP) vanished while the adult proteins were newly synthesized. Similar results were also found in the changes of protein in the midgut of dauer pupae by injecting ecdysone and PTTH.

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The Expressive Characteristics of Origami Fashion based on Functionality (기능성이 반영된 오리가미 패션의 표현특성)

  • Choi, Jung-Hwa;Choi, Yoo-Jin
    • Fashion & Textile Research Journal
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    • v.11 no.4
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    • pp.515-526
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    • 2009
  • From traditional ceremony to science technology, origami was used as technique for artistic creativity and functionality based on formative characteristics. The purpose of this study is to analyze the expressive characteristics of functionality in fashion design using origami technique. The method of this study was to analyze recent documentaries, fashion books, fashion magazines, internet web site and so forth. The results were as follows: In various fields of design, the category of the expressive characteristics was classified as efficient correspondence of space, compositive convergence of function, variable potentiality of form and human ergonomic optimum. In recent origami fashion based on functionality, the efficient correspondence of space was expressed constructive or decorative pocket design, using on clothing surface and varied design by lifestyle. The compositive convergence of function was expressed innovative connection of fashion items or non-fashion items and deconstructed classical clothing pattern. The variable potentiality of form was expressed control of form by irregular fold, dynamic metamorphosis by organic fold and creation of varied clothing silhouette. The human ergonomic optimum was expressed metamorphosis mechanism from two dimension to three dimension, suitable construction to physical ability and limit and organic form based on articular folding. The functional origami fashion means reflection of nomadic lifestyle, maximum of usability, pursuit of playful sensibility, creation of new body aesthetic and pursuit of technology and humanism. And the result of these study may be used for creative inspiration in fashion design because of unique characteristics.

Impact of glycosylation on the unimpaired functions of the sperm

  • Cheon, Yong-Pil;Kim, Chung-Hoon
    • Clinical and Experimental Reproductive Medicine
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    • v.42 no.3
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    • pp.77-85
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    • 2015
  • One of the key factors of early development is the specification of competence between the oocyte and the sperm, which occurs during gametogenesis. However, the starting point, growth, and maturation for acquiring competence during spermatogenesis and oogenesis in mammals are very different. Spermatogenesis includes spermiogenesis, but such a metamorphosis is not observed during oogenesis. Glycosylation, a ubiquitous modification, is a preliminary requisite for distribution of the structural and functional components of spermatids for metamorphosis. In addition, glycosylation using epididymal or female genital secretory glycans is an important process for the sperm maturation, the acquisition of the potential for fertilization, and the acceleration of early embryo development. However, nonemzymatic unexpected covalent bonding of a carbohydrate and malglycosylation can result in falling fertility rates as shown in the diabetic male. So far, glycosylation during spermatogenesis and the dynamics of the plasma membrane in the process of capacitation and fertilization have been evaluated, and a powerful role of glycosylation in spermatogenesis and early development is also suggested by structural bioinformatics, functional genomics, and functional proteomics. Further understanding of glycosylation is needed to provide a better understanding of fertilization and embryo development and for the development of new diagnostic and therapeutic tools for infertility.

Studies on the Haemolymph Proteins during the Metamorphosis of the Pine Moth, Dendrolimus spectabilis Butler (솔나방의 變態에 따른 血蛋白質의 變化)

  • Yoo, Chong-Myung;Lee, Kyung-Ro
    • The Korean Journal of Zoology
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    • v.17 no.2
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    • pp.81-92
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    • 1974
  • The blood proteins of pine moth, Dendrolimus spectabilis Butler of different developmental stages were investigated by disc electrophoresis in acrylamide gels. Blood protein concentration was also determined during the metamorphosis. Protein concentration increased gradually with the growth of larva, reaching a maximum in themature larva, and the increase of protein bands also was accompanied. As the larva transforms into the prepupa the number of protein bands as well as the protein concentration dropped. A total of 22 bands were identified throughout the stages. Histochemical staining of the acrylamide gels by the PAS method, Toluidine blut O, and Sudan black demonstrated that the carbohydrate, mucopolysaccharide, and lipid were associated with certain blood proteins.

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Studies on the Metamorphosis and the Growth of Larva in Limnoperna fortunei (Limnoperna fortunei 유생(幼生)의 성장(成長) 및 변태(變態)에 관(關)한 연구(硏究))

  • Choi, Shin-Sok;Kim, Jung-Sup
    • The Korean Journal of Malacology
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    • v.1 no.1
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    • pp.13-18
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    • 1985
  • The metamorphosis and the growth of larva in Limnoperna fortunei were studied from October, 1981 to December, 1983. 1) The larva of this species is observed in the three different stages in the form of D-shaped. The shell length of the larva in the early stage is $130.44{\mu}m$ to $143.60{\mu}m$ and in the middle stage $161.67{\mu}m$ to $184.11{\mu}m$. In the late stage the length size of the larva increases up to $194.55{\mu}m$ to $208.45{\mu}m$. The shell height is $103.19{\mu}m$, to $119.47{\mu}m$, $126.51{\mu}m$ to $157.63{\mu}m$ and $136.87{\mu}m$ to $176.35{\mu}m$ in the three stages respectively. Thus the growth ratio of shell length to shell height is 1:0.75. 2) The metamorphosing stage begins when the shell height becomes larger than $210{\mu}m$ and the shell length exceedes $260{\mu}m$.

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