• Title/Summary/Keyword: 털

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An Adaptive System for Effective Fur rendering (효과적인 Fur 렌더링을 위한 적응적 시스템 -혼합 렌더링을 이용한 빠른 Fur 렌더링 방법-)

  • Kim, Hye-Sun;Ban, Yun-Ji;Lee, Chung-Hwan;Nam, Seung-Woo;Choi, Jin-Sung;Oh, Jun-Kyu
    • 한국HCI학회:학술대회논문집
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    • 2009.02a
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    • pp.719-724
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    • 2009
  • Fur rendering is difficult in that there are huge numbers of objects and it takes so much time. The previous method considers fur as cylinder, transforms it into 2D ribbon, triangulates and commits rendering. But this method has problem like under sampling and takes rendering time so long. To resolve these shortcuts we proposed new algorithm. We divide fur into thick and thin fur and we applied adaptive rendering methods for each type of fur. Also we can perform an effective rendering according to the proposed rendering framework.

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Karyotypes of Four Acanthochitona Species (Acanthochitonidae, Polyplacophora) in Korea (한국산 가시군부속 ( 가시군부과 : 다판강 ) 4종의 핵형)

  • Park, Boon-Jo;Lee, In-Sook;Seungshic Yum;Choe, Byung-Lae
    • The Korean Journal of Malacology
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    • v.14 no.1
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    • pp.27-32
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    • 1998
  • 한국산 가시군부속 (Acanthochitona)의 좀털군부(A. achates),참털군부 (A. circellata), 털군부(A.defilippii)및 애기털군부(A. rubrolineata)등 4종의 정소를 재료로 warm drying mithod를 통해 염색체를 관찰하였다. 염색체의 수는 4종 모두 2n=16, n=8로 확인되었다. 핵형분석결과 형태적으로 좀털군부는 다섯 쌍의 중부염색체, 한쌍의 차중부염색체, 두 쌍의 차단부염색체로;참털군부는 한쌍의 중부염색체, 네 쌍의 차중부염색체, 두 쌍의 차단부염색체, 한 쌍의 말단부염색체로; 털군부는 세 쌍의 중부염색체, 세 쌍의 중부염색체, 한 쌍의 차중부염색체, 한 쌍의 차중부 또는 차단부염색체로 구성되어 있었다. 외부 형태적으로 매우 유사한 애기털군부와 좀털군부의 경우, 특히 4번 염색체에서 현저한 형태적 차이를 보였다. 8번 염색체의 경우, 애기털군부와 좀털군부는 중부염색체인 반면 참털군부와 털군부는 말단부염색체로 나타났다. 동북아시아와 유럽에 분포하는 가시군부류 사이에 나타나는 염색체의 속내 종간 숫적변이를 보면 동북아시아산(2n=16)이 유럽산(2n=16)이 유럽산(2n=24, 18)보다 분화된 것으로 보인다.

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Molecular phylogenetic relationships and speciation of Ranunculus cantoniensis (Ranunculaceae) (털개구리미나리(Ranunculus cantoniensis)의 분자계통학적 유연관계 및 종분화)

  • Lee, Chang Shook;Lee, Nam Sook;Yeau, Sung Hee
    • Korean Journal of Plant Taxonomy
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    • v.34 no.4
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    • pp.335-358
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    • 2004
  • To investigate molecular phylogenetic relationships and to test hypothesis of hybrid origin of Ranunculus cantoniensis (Ranunculaceae), the sequences of nrDNA and chloroplast DNA were analyzed for 8 taxa and 25 accessions including 5 accessions of outgroup. In the phylogenetic trees by analyses of maximum parsimony and maximum likelihood for ITS nrDNA sequences and combined data of psbA-trnH, rps16 and trnL sequences of cpDNA, R. cantoniensis was most closely related to R. chinensis, and then to R. taciroi and R. silerifolius. The molecular phylogenetic relationships were not congruent with the previous report that R. cantoniensis was most closely related to R. silerifolius. In the sequence analysis of ITS and psbA-trnH, rps16, trnL for R. cantoniensis and the related taxa, R. cantoniensis showed polymorphism. It supported that the polymorphism also was reported in chromosome number and karyotype of R. cantoniensis. Ranunculus cantoniensis shared the marker gene of R. chinensis and R. silerifolius in ITS, and one of R. silerifolius in cpDNA. These results supported the hypothesis that R. cantoniensis was caused by hybridization between R. chinensis and R. silerifolius based on chromosome number and karyotype, and also estimated that R. silerifolius might be of maternal origin and R. chinensis be paternal.

Black Hair Follicular Dysplasia in a Shih-tzu Dog (시츄견에서 발생한 검은색털 모낭 이형성증)

  • Kim, Ha-Jung;Park, Hee-Myung
    • Journal of Veterinary Clinics
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    • v.32 no.6
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    • pp.527-529
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    • 2015
  • A 7 year-old intact female black spotted and white hair Shih-tzu dog visited for screening of vital condition and was suspected multifocal alopecia on physical examination. On dermatologic examination, alopecia with patches on black spot area, generalized seborrhea sicca, and bacterial infection were detected. Additionally, melanin clumping in the hair shafts on the alopecic area was detected by microscopic examination. Based on the signalment and dermatologic examination, black hair follicular dysplasia was diagnosed. To our best knowledge, this the first case report of black hair follicular dysplasia in Shih-tzu.

Taxonomic reconsideration of the Philadelphus schrenkii complex (고광나무분류군(Philadelphus schrenkii complex)의 실체에 대한 형태 고찰)

  • Park, Sky;Kim, Hui;Lee, Heung-Soo;Chang, Chin-Sung
    • Korean Journal of Plant Taxonomy
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    • v.35 no.4
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    • pp.247-272
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    • 2005
  • The Philadelphus schrenkii complex including P. schrenkii var. schrenkii, P. schrenkii var. jackii, P. schrenkii var. mandshuricus, P. tenuifolius, P. pekinensis, P. seoulensis, P. lasiogynus, and P. scaber, is distributed in China, Korea, japan, and far eastern Russia. Their taxonomic delimitations are obscure because quantitative characters, such as presence/absence and density of hair on leaf, petiole, style, disc, calyx-tube, and pedicel, are highly variable with no apparent characteristics that consistently distinguish from each other within the group. Thus, these morphological characters are reexamined using univariate analyses. P. pekinenesis is distinct from other taxa in having glabrous disk, calyx, pedicel, and leaf blade. In addition, the number of flowers in an inflorescence [(5)7-9(11) vs 5-7 in other taxa], smaller calyx tube [2.5-3 mm vs. (2.5)3-4(5.9) in other taxa], and slightly divided styles help distinguish P. pekinenesis from other related taxa in Korea. However, P. schrenkii var. schrenkii, P. schrenkii var. jackii, P. schrenkii var. mandshuricus, and P. lasiogynus show continuous variation in the pubescence of disk, calyx, pedicel, and leaf blade, and this may reflect a lack of divergence among them. Particular emphases are placed on P. tenuifolius and P. seoulensis, because of the high degree of morphological intergradation with respect to the degree of pubescence in disk, calyx, pedicel, and leaf blade and their inconsistent circumscription across various systematic treatments. P. scaber, distributed in the southern Korea, has often been treated as an independent species having exfoliated branchlets, distinct serrated leaf margin, and recurved styles. However, this current study suggests that P. scaber should be recognized as a form of P. tenuifolius because these distinguishing characters are continuous between P. tenuifolius and P. scaber. In geographical distribution, P. pekinensis is mainly distributed in the southern part of Korea, while P. tenuifoilus and P. schrenkii are commonly found all over the country.

디지털 혹은 돼지털?

  • Kim, Won-Je
    • 프린팅코리아
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    • s.23
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    • pp.168-171
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    • 2004
  • 'Humamnism thru Digital' 디지털 세상이 목표로 하는 이상향의 모습이다. 그런데, 누구에게나 그런 건 아닌가보다. 얼마전 가벼운 웃음을 짓게 하며 인구에 회자된 하나의 TV광고를 떠올려보자. 광고는 저녁 무렵 퇴근 길에 남편이 시장에 들러 생선가게 앞에서 생선을 고르는 장면으로 시작한다. 이것 저것 고르다가 아내에게 핸드폰으로 전화해 생선을 보여주고 선택하게 한다. 옆에서 이를 지켜보던 생선가게 주인할머니가 의아스런 눈빛으로 손님을 바라보자, 손님이 설명해준다. '디지털 세상이잖아요' 그에 할머니, 갸우뚱하며 한마디 던지는데, "돼지털?" 이란다. 제대로 알아듣지 못한 것이다. 젊은 남편에게는 '디지털' 인 것이 할머니에겐 '돼지털'일 뿐이다. 모든 이에게 디지털은 아닌 것이다.

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탈모

  • KOREA ASSOCIATION OF HEALTH PROMOTION
    • 건강소식
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    • v.29 no.9 s.322
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    • pp.6-9
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    • 2005
  • 모발은 일반적으로 수명이 있으며 끊임없이 빠지고 새로 나고 있으므로, 1일에 70~80개 전후의 탈모는 생리적인 것이다. 그러나 비정상으로 많이 빠져 털이 성기게 되거나, 부분적으로 많은 털이 빠져 대머리가 되는 것을 탈모증이라고 한다.

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Trichome morphology of Fallopia sect. Reynoutria (Polygonaceae) in Korea (한국산 닭의덩굴속 호장근절 (마디풀과) 식물의 털의 형태와 분류)

  • Moon, Hye-Kyoung;Park, Jin Hee;Park, Chong-Wook
    • Korean Journal of Plant Taxonomy
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    • v.41 no.1
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    • pp.51-57
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    • 2011
  • The microstructure of the leaf epidermis and trichomes of Fallopia sect. Reynoutria are examined using scanning electron microscopy. Fallopia sachalinensis was distinguished from other taxa in this section by its prominent epicuticular wax layer consisting of protruding wax rodlets. In addition, epicuticular rodlets of F. sachalinensis individuals from Ullung Island and Dok Island appear to be thinner than those from other regions, including Japan and Sakhalin. The stomatal size appears to be related to the ploidy level in the sect. Reynoutria, as the hexaploids, octoploids and dodecaploids tend to have larger stomata as compared to tetraploids. Three basic types of trichomes were found in the section; (1) conical unicellular trichomes, (2) uniseriate filiform trichome consisting of 1-8 cells, and (3) peltate glandular trichomes. The trichome types and their distribution appear to be useful in distinguishing the taxa in the section.

Distribution Variations of Chigger Mites Collected in Jinan, Jeollabuk-do (전북 진안에서 채집한 털진드기 분포 변화)

  • Lee, Hyeok Jae;Park, Chul
    • Korean Journal of Clinical Laboratory Science
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    • v.53 no.4
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    • pp.317-325
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    • 2021
  • In order to monitor the occurrence of chigger mites, collectors were installed at four places: rice field, field, waterway, and grass field. Totally, 207 chigger mites belonging to 7 species were collected. Starting with 2 mites in the 5 weeks of September, a maximum of 49 mites were collected during 3 weeks of November. Totally, 81, 52, 47 and 27 mites were collected from grass field, waterways, rice field, and field, respectively. Analysis of sampling and collecting chigger mites determined that the most encountered species was Neotrombicula kwangneun (73, 35.3%), followed by Leptotrombidium palpale (46, 22.2%), N. tamiyai (41, 19.8%) and N. asakawai (27, 13.0%). The grab results of 44 wild rodents revealed Apodemus agrarius (35, 79.5%), Crocidura spp. (5, 11.4%), Craseomys regulus (2, 4.5%), and A. peninsulae (2, 4.5%; which had not been detected previously). A total of 6,628 chigger mites were collected from rodents, and the chigger index was determined to be 150.6. Chigger index was found to be highest at 234.2 in October, followed by 223.3 in November, 75.6 in April, and 66.2 in May. PCR from all chigger mite samples tested negative for the Tsutsugamushi pathogen.