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박용정(Park, Yong-Jung),강신형(Kang, Shin-Hyung) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.11
Greenhouses should be heated during nights and co Id days in order to fit growth conditions in greenhouses. Ground source heat pump(GSHP) or geothermal heat pump system(GHPs) is recognized to be outstanding heating and cooling system. Horizontal GSHP system is typically less expensive than vertical GSHP system but requires wide ground area to bury ground heat exchanger (GHE). In this study, a horizontal GSHP system with thermal storage tank was installed in greenhouse and investigated as performance characteristics. In the daytime, heating load of greenhouse is very small or needless because solar radiation increases inner air temperature. The results of study showed that the heating coefficient of performance of the heat pump(COP_h) was 2.9 and the overall heating coefficient of performance of the system(COP_{sys}) was 2.4. Heating energy cost was saved 76% using the horizontal GSHP system with thermal storage tank.
16S Ribosomal RNA로 진단한 Nocardia brasiliensis에 의한 파종성 피부 노카르디아증
신정우 ( Jung U Shin ),권연숙 ( Yeon Sook Kwon ),김희정 ( Hee Jung Kim ),박용정 ( Yong Jung Park ),이경원 ( Kyung Won Lee ),이광훈 ( Kwang Hoon Lee ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.9
Nocardiosis is a rare, life-threatening infection in the immunocompromised host. The causative bacteria are members of the genus Nocardia and are filamentous gram-positive bacilli that usually infect the lung, skin, and central nervous systems. Cutaneous nocardiosis presents as a disseminated infection or as a primary infection resulting from inoculation. Isolation of Nocardia from clinical specimens and identification of species is difficult and needs the expertise of a microbiologist. These infections are particularly important because of the associated high risk of dissemination. Hence, prompt identification of this organism is crucial. Herein we report a case of disseminated nocardiosis caused by N. brasiliensis in a 64-year-old man diagnosed by fine needle aspiration (FNA) and 16S ribosomal RNA sequencing. The patient was treated with trimethoprim plus sulfamethoxazole, imipenem, and amikacin with an improvement of symptoms. (Korean J Dermatol 2009;47(9):1024∼1028)