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      • KCI등재

        종 분포 모형을 이용한 구상나무림의 지속 및 쇠퇴에 관한 연구 - 전라남도 광양시 백운산을 중심으로 -

        조선희 ( Seon Hee Cho ),박종영 ( Jong Young Park ),박정호 ( Jeong Ho Park ),이양근 ( Yang Geun Lee ),문이만 ( Lee Man Mun ),강상호 ( Sang Ho Kang ),김광현 ( Gwang Hyun Kim ),윤종국 ( Jong Guk Yun ) 한국산림과학회 2015 한국산림과학회지 Vol.104 No.3

        The present study investigated the habitats of Korean fir trees (Abies koreana E. H. Wilson) on Mt. Baekwun (Baekwun-san), determined the current distribution, quantified the contribution of biological and nonbiological environmental factors affecting the distribution, derived actual and potential habitats, presented a plan for the establishment of protected areas, applied RCP 8.5 climate change scenario to analyze the effects of climate change on the future distribution of Korean fir trees, and predicted future potential habitats. According to the results of the study, 3,325 Korean fir trees (DBH >= 2.5 cm) inhabited Mt. Baekwun, and their distribution area was approximately 150 ha. Populations of Korean fir trees were confirmed to exist at an altitude of 900 m above sea level and were distributed up to 1,200 m. Based on potential distribution, areas appropriate for habitation by Korean fir trees were analyzed to be 450 ha, three times the current distribution area, with a focus on Sang Peak (Sang-bong), Eokbul Peak (Eokbul-bong), Ddari Peak (Ddari-bong), and Dosol Peak (Dosol-bong). The forest stands near Sang Peak, the main peak, were evaluated as those with the most appropriate potential for the habitation of Korean fir trees, and populations of the trees tended to prefer the northern slope rather than the southern slope. When climate change scenario RCP 8.5 was applied and future potential distribution was analyzed, the habitats were expected to decrease in area to 20 ha by 2050, with a focus on Sang Peak, and areas appropriate for habitation were predicted not to exist by 2080. Judging from such results, as global warming accelerates, the habitats of Korean fir trees are clearly expected to move from lowlands to highlands.

      • KCI등재

        新羅 長板 打捺紋樣 평기와의 慶州 製作與否에 대하여

        조성윤 이화사학연구소 2003 梨花史學硏究 Vol.0 No.30

        In thesis, I would know which roof tiles with large-sized paddle-beat pattern of Silla period were produced in Gyeongju area. Up until today, On the basis of the excavated roof tiles in Gyeongju area, Those were not produced. And yet, Roof tiles with large-sized paddle-beat pattern of Goguryo period(高句麗時代) Sites and Backje(百濟時代) were excavated : Horogoru Castle(瓠蘆古壘), the Mireucksa Temple(彌勒寺). Also, Roof tiles with large-sized paddle-beat pattern of Unified Silla period(統一新羅時代) were manufactured in the province : Busosan Castle(扶蘇山城), Huengduck Temple(興德寺), while Roof tiles with large-sized paddle-beat pattern were not likely to produce those in the capital unifid Silla of Gyeongju area. The reason why roof tiles with large-sized paddle-beat pattern of Silla period was not produced in Gyeongju area seem to be caused manufacturing technique. And The reason why roof tiles with large-sized paddle-beat pattern of Unified Silla period was not produced in Gyeongju area could be call in the three questions. - Why is it that, while roof tiles manufacturing technic in Backje period has development workman of Silla was not to take in Backje of manufacturing technique? And, Why ever did roof tiles with medium-sized paddle-beat pattern of new manufacturing technic produce. - Roof tiles with large-sized paddle-beat pattern of Unified Silla period were not produced in Gyeongju area whether that is caused by manufacturing technique which is inferior to the roof tiles of manufacturing technique in the province. - We must make clear whoever is man who manufacture roof tiles with large-sized paddle-beat pattern, whether those are related to spread out zen Buddhim(禪宗). Henceforth a few korean archaeologists have to very interest roof tiles with large-sized paddle-beat pattern of Silla period in the Sites of the bulidings in Gyeongju area. And I expect to have been report roof tiles with large-sized paddle-beat pattern of Backje Kingdom in the Sites of the Backie bulidings.

      • 활성화 항원 CD30의 발현과 그 기능

        조경신,허영문,남상윤 전주대학교 1999 論文集 Vol.24 No.2

        CD30 is a member of the tumour necrosis factor receptor(TNFR) superfamily, and was originally recognized on Reed-Sternberg cells of Hodgkin's disease and, subsequently, on neoplastic cells of non-Hodgkin's disease and normal activated T, B, NK cells and macrophages. Several studies on CD30 expression of malignant cells suggest that CD30 may define relevant subgroups within the main tumor or lymphoma categories. Despite many controversial reports, it is noteworthy that CD30 is expressed solely on Th2 cells but not on Th1 cells after complete differentiation, because, so far, any specific markers of Thl or Th2 cells have not been demonstrated. Expression and its maintenance of CD30 is also dependent upon IL 4 which is a pivotal cytokine for Th2 differentiation and downregulated by FNv, a Thl type cytokine. These observations implicate that CD30 may regulate Th2 cell differentiation or proliferation. At the clonal level, CD30 was revealed to promote Th2 differentiation. Various functions of CD30 from in vitro studies have been described: induction of cell proliferation, apoptosis and cytokine production, inhibition of cell cytotoxicity, enhancement of B cell growth and Ig secretion, induction of NF-KB activation and induction of HIV expression in chronically infected T cells. Although the function of CD30 in vivo is largely unknown, several exciting findings are emerging from recent studies. Mice deficient in CD30 showed a mild impairment in thymic negative selection. Recently, it has been suggested that CD30 protects the body from autoimmunity by limiting the proliferative potential of autoreactive cytotoxic T cells. Taken together, CD30 studies may provide important knowledge for elucidation of the immunopathogenesis of and development of therapeutic regimen of AIDS, autoimmunity and other Th2-related diseases.

      • 엔로플록사신 액제의 닭유래 병원세균에 대한 시험관내 항균효과 시험

        윤효인,박병권,조준형,정상희,박경환,장범수,김종춘,황윤환,임종환,이내경,박승춘 충남대학교 수의과대학 동물의과학연구소 2000 動物醫科學硏究誌 Vol.8 No.-

        In this study the antimicrobial spectrum and sensitivity of a liquid formulation of enrofloxacin against the major six pathogenic bacteria isolated from the diseased poultry in Korea were evaluated in comparison with ciprfloxacin (CFX), gentamicin (GM) and penicillin (PC). A liquid form of enrofloxacin, a test material and ciprofloxacin showed at least 83% antibacterial activity against all of six test pathogenic microorganisms at the fixed concentration of 10 ㎍/㎖. Gentamicin and penicillin revealed much lower antibacterial activity at the same condition. We evaluated the liquid form of enrofloxacin as having widespread antibacterial spectrum against poultry infections. The liquid form of enrofloxacin showed potent antibacterial activity, with the MIC range being 0.12∼2 ㎍/㎖ against Gram positives, 0.06∼2 ㎍/㎖ against Gram negatives and 0.5∼2 ㎍/㎖ against Mycoplasma spp. These values were equivalent to or somewhat higher than those of ciprofloxacin, but much lower than those of gentamicn and penicillin. This new liquid form of enrofloxacin would find its way in application of mixing with drinking water for the prevention and treatment of diverse infections in chickens.

      • 원인 미상의 설사와 복통으로 발현한 AL형 유전분증 1 예

        조종태,윤성철 단국대학교 1998 論文集 Vol.32 No.-

        Primary systemic amyloidosis (AL amyloidosis) is an uncommon disease characterized by the accumulation in vital organs of a fibrillar protein consisting of monoclonal immunoglobulin light chains. It is a plasma cell dyscrasia usually accompanied by a bone marrow plasmacytosis and an M component in the serum or urine. The presenting features of AL amyloidosis are protean and frequently nonspecific, but the diagnosis is rarely made until symptoms or signs referable to a particular organ appear. The amyloid deposits cause cardiac or renal dysfunction and, ultimately, death. We report a case of AL amyloidosis, presented with unexplained diarrhea and abdominal pain for eight months, documented by a renal biopsy, and review the previous literatures

      • 표면곡률을 이용한 물체의 형상특징추출

        조동욱,김지영,박웅규,윤상균,이성석,김태우 西原大學校 1992 西原大學 論文集 Vol.29 No.-

        In this paper, a new shape feature extraction method of the objects using surface curvatures is described. First, the values of the H & K are calculated from range data as given input. Then objects are assigned in the form of 8 primitives by the signs of the H & K values. But existing methods have the difficulties with the complex object. Therefore, We propose the method for the complex primitives such as cone ridge and cone valley. Finally, the effectiveness of this paper is demonstrated by several experiment.

      • 인공치아 이식 후 발생한 편측성 상악동염 1예

        조성일,최지윤 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.2

        Recently, dental implant is frequently performed in dentistry. It can give rise to complications such as maxillary sinusitis, oroantral fistula, displacement of implants and others. Among these complications, maxillary sinusitis is one of the severe complication, which is being reported to occur rarely. The complications of dental implant are often accompanied by gingival swelling, pain, fistula and other symptoms, for which immediate therapeutic measures may be implemented. The clinical diagnosis of sinusitis after dental implant is confirmed by radiologic findings and clinical symptoms. It can be treated with medical and surgical therapy. The authors experienced a case with unilateral maxillary sinusitis developed after dental implant performed at the dental clinic, which was alleviated by performing endoscopic sinus surgery. By reporting this case, we aimed to call attention to the complications of sinusitis and consider implant displacement in suspicious cases of acute maxillary sinusitis.

      • MRI용 초전도 능동차폐 마그네트의 설계에 관한 연구

        조윤현,이광호,김성도 東亞大學校 附設 情報通信硏究所 1996 情報通信硏究所論文誌 Vol.4 No.1

        An optimal design approach is presented for the high homegeneity superconducting magnet with a superconducting active shield esperically for a magnetic resonance imaging system. This paper is investigated magnetic phenomena for a stray magnetic to get reduction technigues of the unwanted stray magnetic field from the superconducting magnet.

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