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면역조직화학법을 이용한 점농어 (Lateolabrax sp.) 뇌에서 두 종류 (sGnRH, cGnRH-II) 의 생식소자극호르몬 분비호르몬의 동정
김정우,이원교,양석우,정관식,조용철,노용길,방인철,김광수,임상구,유명식,권혁방,KIM Jung-Woo,LEE Won-Kyo,YANG Seok-Woo,JEONG Kwan-Sik,CHO Yong-Chul,RHO Yong-Gil,BANG In-Chul,KIM Kwang-Soo,KIM Sang-Koo,YOO Myung-Sik,KWON Hyuk-Bang 한국수산과학회 1999 한국수산과학회지 Vol.32 No.3
Two forms of gonadotropin releasing hormone (GnRH) are identified in the brain of adult mature spotted sea bass (Lateolabrax sp.) by immunohistochemical methods. Salmon GnRH immunoreactive (sGnRH-ir) cell bodies were distributed in the olfactory bulb, ventral telencephalon and preoptic region. Immunoreactive fibers were observed in the vicinity of the brain including the olfactory bulbs, the telencephalon, the optic nerve, the optic tectum, the cerebellum, the medulla oblongata and rostral spinal cord. In most cases, these fibers did not form well defined bundles. However, there was a clear continuum of immunoreactive fibers, extending from the olfactory bulbs to the pituitary. cGnRH-II-ir cell bodies were only found in olfactory bulbs. However, the distribution of cGnRH-II-ir fibers was basically similar to that of sGnRH-ir fibers except for the absence of their continuity between the olfactory bulbs and the pituitary. These data suggest that sGnRH and cGnRH-II are endogenous peptides and indicate the presence of multiple neuroendocrine functions in the brain of the spotted sea bass. It seems that sGnRH not only regulates GTH secretion but also functions as a neurotransmitter, whereas cGnRH-II functions only as a neurotransmitter. 성숙 점농어 뇌에서 세 종류의 생식소자극호르몬 분비호르몬 (GnRH)의 소재를 면역조직화학법에 의해 동정하였다. sGnRH 양성 신경세포체는 후각망울, 복측 종뇌와 전시각 지역에 분포하였다. 양성 신경섬유는 후각망울에서부터 척수에 이르기까지 다양하게 분포하였다. 면역신경섬유는 뇌의 전지역인 후각망울, 종뇌, 시각시개, 소뇌, 연수 그리고 머리쪽 척수에서 발견되었다. 대부분의 경우 이들은 모두 다발을 형성하지는 않았다. 그러나 후각망울에서 뇌하수체로 뻗어있는 양성 신경섬유는 가장 뚜렷하였다. cGnRH-II 양성 신경세포체는 후엽에서 발견되었다. 그러나 cGnRH-II 면역신경섬유도 후각망울에서 뇌하수체로 뻗은 면역신경섬유를 제외하고는 기본적으로 sGnRH 양성 신경섬유와 분포가 유사했다. 이것은 점농어 뇌에서 sGnRH와 cGnRH-II가 알려진 내인성 펩타이드이며, 이들이 다양한 신경내분비 기능을 수행할 것이라는 점을 의미한다. sGnRH는 GTH의 분비를 조절 할 뿐만 아니라 신경전달조절자로서, cGnRH-II는 단지 신경전달조절자로서 작용할 것으로 생각된다.
냉장고 가스켓 형상 변화에 따른 냉장고 열손실 저감 효과
하지수(Ji Soo Ha),정광수(Kwang Soo Jung),김태권(Tae Kwon Kim),김경호(Kyung Ho Kim),정관식(Gwan Sik Jeong),김석로(Seok Ro Kim) 대한설비공학회 2008 대한설비공학회 학술발표대회논문집 Vol.2008 No.2
Insulation of refrigerator with gasket material near door becomes the technical point at the aspect of heat loss and energy efficiency. Heat loss of refrigerator through the gasket is nearly 30%. In this paper, quantitative evaluation method of heat loss through gasket in established suggest the method for the improvement of heat loss. To analyze the heat transfer, we have used the common software Fluent that is used to CFD. Because of using the convection coefficient of heat transfer, we have solved only the equation of energy for heat transfer. As a result, we have known that heat loss flows through the heat flux vector and that the heat gathered out of the outside iron plate is transferred inner part through the gasket and ABS, etc. Through the result of the numerical simulation that use sub-gasket, we have known that we are able to reduce the heat loss about 20~40%. when we applied that sub-gasket on a real refrigerator, the power consumption had reduced about 4.76%. In addition, when we applied a more improved sub-gasket on a real refrigerator and measured the power of the refrigerator the power consumption does reduce about 3% and we will try to apply the improved sub-gasket on a new models of refrigerator.