• 제목/요약/키워드: Metamorphosis

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Study on the Seed Production of Olive Flounder Paralichthys olivaceus in a Pilot Scale Recirculating Aquaculture System

  • Park, Jeong-Hwan;Jo, Jae-Yoon;Kim, Pyong-Kih
    • Journal of Aquaculture
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    • v.21 no.3
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    • pp.125-132
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    • 2008
  • Seed production of olive flounder Paralichthys olivaceus was performed in a pilot RAS. The growth of juvenile olive flounder and changes in water quality were monitored for the entire production period. The pilot RAS consisted of 8 circular culture tanks($4.0mD{\times}1.0mH$), 2 trickling biofilters($1.7mD{\times}2.0mH$), 2 protein skimmers ($0.8mD{\times}2.5mH$), and 4 sedimentation chambers($0.7mD{\times}1.5mH$). The culture surface area was about $100.5m^2$ and the actual working volume was about $106.9m^3$. As many as 300,000 fertilized olive flounder eggs were initially distributed into 2 culture tanks with the water temperature at $19.0^{\circ}C$. Live feeds such as rotifers and Artemia nauplii were fed until the 32nd day after hatching, and a commercial diet was fed from the 19th day to the end of the experiment. After 70 days, 150,256 juveniles with a body length of $65.8{\pm}3.9mm$ were produced in the RAS, with a daily growth rate for body length of 4.7%/day. At this time, the final culture density was 1,495 individuals $m^{-2}$, and 13.6 L of makeup water, 0.071 kW of electricity and 0.025 L of diesel fuel were used to produce a juvenile olive flounder. During metamorphosis of the larvae, the TAN concentration increased to 0.99 mg/L, which made the larvae sensitive to result in some mortality. However no more massive mortality occurred at the juvenile stage after metamorphosis even at a TAN concentration of 4.25 mg/L and a ${NO_2}^{-}-N$ concentration of 2.45 mg/L.

The Morphological Study of the Midgut Epithelium during the Metamorphosis of Pine Caterpillar (變態에 따른 솔나방(Dendrolimus spectabilis Butler) 中腸上皮의 形態的 考察)

  • 김정상;김우갑;김창환
    • The Korean Journal of Zoology
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    • v.28 no.3
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    • pp.151-165
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    • 1985
  • The morphological changes of the midgut epithelium during the metamorphosis of pine caterpillar are observed with light and electron microscope, being divided into 5 stages from the 8th instar larva to just after pupation. The midgut epithelium of 8th instar larva is composed of columnar cell, goblet cell, regenerative cell, and endocrine cell. The secretorials are arranged on the nuclear membrane in the columnar cell of the midgut epithelium in the 8th instar larva, and lysosomes are augmented in the apical portion. Cytoplasmic extrusions are observed in the apical surface of columnar cell but they have no cell organells. Nucleus, mitochondria, rER, Golgi complex, and free ribsomes are observed in the regenerative cell. Regenerative cells are differentiated into the form of goblet cell, and vacuoles are gradually increased in the cytoplasm. Just pupa stage, the materials, which appears to be mainly composed of Ca, are observed in the circular form and goblet cavity of regenerative cell are detached to lumen. As a result, it reflects the process of the degeneration of the midgut epithelium that lysosomes are gradually augmented in the columnar cell, that nuclear materials are removed to cytoplasm, and that cytoplasmic extrusions are observed in the apical surface. And though regenerative cells are differentiated into the form of the goblet cell, it is believed that goblet cavity is detached from regenerative cell to the lumen and midgut epithelium of pupa stage is formed.

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A Study on Expression Visual of Metamorphosis Transition of Image Animation (영상애니메이션 트랜지션의 메타모포시스 시각 표현에 관한 연구)

  • Joo, Hae-Jeong;Kim, Chee-Yong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2010.05a
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    • pp.347-350
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    • 2010
  • With the advent of new media era we are living in the world of motion picture image is not an exaggeration. With the development of the mass media with images and moments that passed the day feeling like part of it is communication. In this era a sensual and shapeable image more than the logical and realistic thinking may be passed. In the act of seeing a moving image, prior to linguistic and conceptual meaning, color and screen configuration delivery and formative element in the change they produce is first recognized. Particular kind of video animation having the narrative structure, this territory effect greatly. the film even more significant effect on the area and linking the image of the scene transitions in the scheme also features a simple means of natural communication functions are being expanded. These transitional effects provide visual pleasure from a simple transition traditional methods. And In terms of narrative functions performed to help a narrative flow of availability, visual representation should continue.

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Effects of Gamma Irradiation on the Mid-gut of Hyphantria Cunea (흰불나방의 중장(中腸)에 미치는 $\gamma$선(線) 조사(照射)의 영향(影響))

  • Choi, Jong-Hak
    • Journal of radiological science and technology
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    • v.3 no.1
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    • pp.95-105
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    • 1980
  • In this paper, the author studied the histological changes of the midgut cells of fall webworms(Hyphantria cunea Drury) through 1.75-7 krad of the whole body gamma irradiation according to their metamorphosis by comparing the contol group with the irradiated one through an optical microscope. Here the results were as follows: 1. The epithelium of midgut was composed of columnar, goblet and regenerative cells. 2. The effects of gamma irradiation were varied with the dosages and the stages during the metamorphosis. 3. The degree of histological change mode by irradiation was increased with the dosages. 4. Radiosensitivity was the highest in both last-stage larva and 8-day-old pupae.

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Postfilic Metamorphorsis and Renaimation: On the Technical and Aesthetic Genealogies of 'Pervasive Animation' (포스트필름 변신과 리애니메이션: '편재하는 애니메이션'의 기법적, 미학적 계보들)

  • Kim, Ji-Hoon
    • Cartoon and Animation Studies
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    • s.37
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    • pp.509-537
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    • 2014
  • This paper proposes 'postfilimc metamorphosis' and 'reanimation' as two concepts that aim at giving account to the aesthtetic tendencies and genealogies of what Suzanne Buchan calls 'pervasive animation', a category that refers to the unprecedented expansion of animation's formal, technological and experiential boundaries. Buchan's term calls for an interdisciplinary approach to animation by highlighting a range of phenomena that signal the growing embracement of the images and media that transcend the traditional definition of animation, including the lens-based live-action image as the longstanding counterpart of the animation image, and the increasing uses of computer-generated imagery, and the ubiquity of various animated images dispersed across other media and platforms outside the movie theatre. While Buchan's view suggests the impacts of digital technology as a determining factor for opening this interdisciplinary, hybrid fields of 'pervasive animation', I elaborate upon the two concepts in order to argue that the various forms of metamorphorsis and motion found in these fields have their historical roots. That is, 'postfilmic metamorphosis' means that the transformative image in postfimic media such as video and the computer differs from that in traditional celluloid-based animation materially and technically, which demands a refashioned investigation into the history of the 'image-processing' video art which was categorized as experimental animation but largely marginalized. Likewise, 'reanimation' cne be defined as animating the still images (the photographic and the painterly images) or suspending the originally inscribed movement in the moving image and endowing it with a neewly created movement, and both technical procedues, developed in experimental filmmaking and now enabled by a variety of moving image installations in contemporary art, aim at reconsidering the borders between stillness and movement, and between film and photography. By discussing a group of contemporary moving image artworks (including those by Takeshi Murata, David Claerbout, and Ken Jacobs) that present the aesthetic features of 'postfilmic metamorphosis' and 'reanimation' in relation to their precursors, this paper argues that the aesthetic implications of the works that pertain to 'pervasive animation' lie in their challenging the tradition dichotomies of the graphic/the live-action images and stillness/movement. The two concepts, then, respond to a revisionist approach to reconfigure the history and ontology of other media images outside the traditional boundaries of animation as a way of offering a refasioned understanding of 'pervasive animation'.

A study of the destructive styles from Contemporary Paintings - Focused on distinguishing enmity-destruction and self-destruction - (현대회화에서 드러난 해체의 형식론에 관한 연구 -타의적 해체와 자의적 해체의 성격규정을 중심으로-)

  • Park Ki-Woong
    • Journal of Science of Art and Design
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    • v.7
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    • pp.5-63
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    • 2005
  • Generally, the meanings of destruction are related in the meaning of demolition, breakdown, into fragments ... and so on, and the similar meanings are twist, crush, demolish, split, cut, into pieces , break up ... etc. Further, it has related in the cruelty and destructive heart which are linked with orgy, Sadism, Necrophilia and so on. The meanings are also expressed by the initial , which are deprivation, deface, defame, deform, degrade, delegitimize, denounce , deride, destroy, devalue, as well as debase, debunk, declaim, declassify, decry, delete, denigrate, deprecate, despise or detract ...and so on. Dario Gamboni has discussed the meaning in his book as two categories Iconoclasm and Vandalism. And the similar meanings could be found in the words which has the initial of , like abase, abate, abhor, abjure, abolish, abridge, abuse ...and so on. Even though the distinct meanings of Iconoclasm and Vandalism, it is not easy to distinguish clearly between the differences when the results are accomplished in contemporary paintings because of the similarity of the results. In korean vocabulary there are no similar words to distinguish between the meanings of destruction and deconstruction, and the deconstruction is not recorded in the general dictionaries. However the meaning of is diminishing, separation, contrast and so on. So the unification of the word as do-construction is not construct, minus construction, reverse construction. And Vincent Ditch explained that there are the meaning of destroy the text. From Jacques Derrida, the deconstruction strategy is to criticise the world of traditional metaphysics and logocentrism, and not to reconstruire the philosophical meaning of texts but $d\'{e}construire$ them. And Saussure emphasized that the signifers could have more meaning that there can be more signified in traditional texts in the art. as a result, deconstruction is explained that there are many signified meanings in a signifer. In this thesis , from using the meanings of destruction and deconstruction, to distinguish the expressive skills in contemporary art works are arising. Therefore, special methods which are linked in the destruction styles are selected. As a result, the two different purposes of destruction is arising, one is enmity destruction and the other is self destruction another word, auto destruction or destruction to create The enmity destruction can be distinguished by the two category Iconoclasm and Vandalism. They come from the moment of different historical aspect is arising and want to attack the Icon or masterpiece this concept is from the study of John Philips and especially iconoclasm is linked with religious and artistic heart, but Vandalism is come from the political attack. Sometime, this distinguish is not clearly arising, because the two aspects are co-related in the attack. As a result, firstly, the Iconoclastic controversy had arisen in the methods of Dadaism which has developed by Man Ray, Francis Picabia and Marcel Duchamp. They want to attack the pre-established master-pieces and painting spaces, and they had 'non-artistic attitude' not to be art. Since 1980, the German artist Anselm Kiefer adapted the methods and made them his special skills so he had tried to paint tough brush strokes and draw with hugh pallette image line and fire and water images , they can be the image attack as the Iconoclasm. secondly, the model of vandalism is to be done by hammer, drill, canon and so on. the method is to attack the content of painting. Further, the object of destruction is bound by cords and iron lings to demolish or to declare the authority of pre-statues; it symbolize the pre-authority is gone already. Self-destruction based paintings are clearly different in the purpose of approaching the art work. First of all, they can be auto-destruction, creative destruction and metamorphosis destruction, which is linked with the skill the material aspect and basic stature, and sign destruction or signifier destruction, which is link with the inner meaning destruction that is considered as the Semiotical destruction in post-modern paintings. Since 1960, the auto destruction is based on the method of firing, melting, grinding and similar skills, which is linked with Neo-Dada and reverse-assemblage. Metamorphosis destruction is strongly linked with the basic inner heart price and quality, so it can be resulted in the changedness of expectation and recognition. Tony Cragg has developed the skills to metamorphose the wood as stone or iron as cloth and stone as sponge and rubber and so on. The researcher has developed the same style in the series of since 2003. The other self-destructive methods are found in the skill of sign destruction. In the methods the meaning of the art is not fixed as one or two, but is developed multi-meaning and differ from original starting situation, so Jacques Derrida called the difference meaning in deconstruction. It is the destruction of textes. These methods are accomplished by David Salle, Francesco Clemente, and recently Tracy Emin, who has developed the attacking heart in the spectators' emotion. Sometime in the method of self-destruction, it is based on horror and shock, the method is explored by Demian Hirst and Jakes and Dinos Chapman. Their destructive styles stimulate ambivalent heart and destroy original sign of girl and animals.

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The Effect of Cold Treatment on the Pupation and Emergence of the Mulberry Longicorn Beetle, Apriona germari Hope

  • Yoon, Hyung-Joo;Mah, Young-Il;Moon, Jae-Yu
    • International Journal of Industrial Entomology and Biomaterials
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    • v.1 no.2
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    • pp.161-163
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    • 2000
  • To assess effects of cold treatment on pupation and emergence of the mulberry longicorn beetle, Apriona germari, the larvae, which ceased feeding, were exposed to three different temperature regimes (2.5, 5 and 7.5$^{\circ}C$) and preservation periods (50, 80, and l10 days). The results indicated that pupation and emergence rates of A. germari were highest at $7.5^{\circ}C$ for 110 days, 40.7% and 37.0%, respectively, demonstrating that the effect of cold treatment on metamorphosis was approximately 3 to 4 fold stronger than that of nontreatment.

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A Study on Modeling of Digital Libraries (디지털 라이브러리 모형에 관한 연구)

  • Lee Chang-Yeol
    • Journal of the Korean Society for Library and Information Science
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    • v.32 no.4
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    • pp.117-140
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    • 1998
  • With the advancement of Internet technology, traditional libraries are going through a new metamorphosis into digital libraries. Digital libraries substitute digital files for papers, metadata for catalogues, world wide users on the network for localized patrons, while offering limitless possibilities for easy downloading of information. The aim of the study is to present a model for our digital library based on the knowledge acquired from the analysis of the state of the art technology employed in building and managing digital libraries. It is our belief that the national information infrastructure for digital libraries are mandatory for an open information society.

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Molecular Cloning of a cDNA Encoding a Putative Larval and Pupal Cuticle Protein from the Chinese Oak Silkworm Antheraea pernyi

  • Kim, Bo-Youn;Park, Nam-Sook;Jin, Byung-Rae;Lee, Sang-Mong
    • Proceedings of the Korean Society of Sericultural Science Conference
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    • 2003.10a
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    • pp.134-135
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    • 2003
  • The insect cuticle undergoes drastic morphological alterations during postembryonic development and is an extracellular structure composed mainly of chitin and proteins that are synthesized and secreted by epidermal cells. Cuticle proteins, the major components of insect integument, are recently being focused as a model fur studying the mechanisms of gene regulation during molting and metamorphosis. (omitted)

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The Complete Larval Development of Enocheir japonicus De Haan (Crustacea, Brachytira, Grapsidae) Reared in the Laboratory (동남참게 Enocheir japonicus의 유생 발생)

  • 김창현;황상구
    • The Korean Journal of Zoology
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    • v.33 no.4
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    • pp.411-427
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    • 1990
  • The complete larval development of Enocheir japonicus De Haan reared in the laboratory is described and illustrated. E. japonicus passes through 5 zoeal stages before metamorphosis to the megalopal stage. The megalopa and crab I inStar are attained in 17 and 27 days after hatching, respectively. The culture was carried out under a photoperiod of 14 h light and 10 h dark and a constant temperature of $25^{\circ}C$. Morphological charaderistics of each larval stage of this species are compared with those of E. japonicus from Japan. Morphological features between zoea I of the Varuninae are briefly discussed.

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