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인삼재배시설의 내풍설계를 위한 설치유형별 풍압분포에 관한 연구
허영신,김병조,하영철 한국풍공학회 2013 한국풍공학회지 Vol.17 No.4
인삼은 반음지성 식물로 해가림을 위한 해가림막 시설이 필요하다. 하지만 해마다 강해지는 강풍이나 태풍으로 인해 많은 시설물이 피해를 입고 있으며, 특히 인삼재배시설의 경우 시설물이 연결되어 하나의 단지를 이루고 있어 피해가 크다. 해가림막은 차광을 위한 것이지만 바람이 투과하는 재질로 이루어진 것도 있어 강풍에 의해 바람이 투과하는지 아닌지를 판단할 필요가 있다. 따라서 본 연구에서는 인삼재배시설의 대표적인 두 가지의 설치유형(관행식, 후주연결식)을 고려하여 모형을 재현하였다. 그리고 먼저 열선풍속계를 이용하여 투과실험을 선행한 후 다점풍압계를 이용하여 본 실험을 수행하여 인삼재배시설의 골조용 풍압분포 특성을 규명하였다. 실험 결과는 인삼재배시설의 설치유형에 따라 하방향 순압력계수와 상방향 순압력계수로 나누어 그래프로 정리하였다. Ginseng is the half-heliophobus plant and needs shading net. The ginseng facilities are made by many bays. Strong wind and Typhoon are getting stronger and cause damage on many facilities. Especially strong wind affected on the shading net of ginseng facilities and it causes the collapse of ginseng facilities posts. The shading nets are made to shade the light, but one of these is made up porous. Therefore, this study investigate the characteristics of wind pressure distribution of structural frame according to the installation types of ginseng facilities(custom type, back-post connection type). First of all, wind permeation experiment are conducted by hot wire anemometer to determine the wind permeation or not on the shading net. And next wind tunnel tests are conducted on ginseng facilities models using multi-point wind pressure measurement system. The results of wind tunnel test are summarized in downward net pressure and upward net pressure by graphs.
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.