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송근호,유진호,김정은,장화익,이광래 江原大學校 産業技術硏究所 2005 産業技術硏究 Vol.25 No.A
Auto exhausts and air pollution can become trapped in the cabin of vehicle, reducing the amount of oxygen available for breathing. Driver may feel sleepy, headaches, nausea, confusion, dizziness and lower levels of oxygen can damage the driver's general health. Consequently, oxygen generator purified oxygen into the car to help driver get the oxygen driver's body needs. In this study, in order to evaluate the oxygen generator performance, the samples that the various conditions(humidity(50%, 100%), flow and oxygen concentration) were examined. There were three types of oxygen generator; sample 1(2.5ℓ/min, 36%0₂), sample 2(4.5ℓ/min, 41%0₂) and sample 3(5ℓ/min, 39%0₂). As the humidity increased from 50% to 100%, the oxygen concentration of the sample 1(36%), 2(41%) and 3(39%) was reduced 31%0₂, 38%0₂ and 38%0₂, respectively. Also, the each sample measured that effect of human in car on oxygen concentration, if the oxygen concentration is one person in car, each sample of oxygen concentration was 20.8%0₂, 23.7%0₂ and 21.2%0₂. From the above results, it was shown that oxygen generator for car, if the oxygen concentration is increased, effect of humidity is reduced, and that in the sample of supplying a high-rate of oxygen, the oxygen concentration is increased. It was suggested that effect of humidity on oxygen generator for car can be reduced according to the supply of oxygen.
안면부, 유방 및 상완부에 발생한 홍반성 루푸스 지방층염 1예
송유근,손두식,명형준,이현정,임중규,김순호,김윤아 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.2
Lupus erythematous panniculitis is a chronic inflammatory disease of subcutaneous fat that occurs in 2-3% of patients with systemic lupus erythematosus. Lupus erythematous panniculitis typically presents with firm, indurated subcutaneous nodules or plaques commonly developed in proximal extremities, trunks, head and neck. Face, breast and upper extremities involvement with lupus erythematous panniculitis has been infrequently reported. We report a case of lupus erythematous panniculitis developed in a 27-year-old female confirmed by histologic features and laboratory findings.
전영남,송형운,김정열,유경석 조선대학교 환경공해연구소 2004 環境公害硏究 Vol.18 No.-
This paper presents numerical simulation of the flow and combustion process in a pulverized coal fired utility boiler of 350MWe with 24 swirl burners installed at the boiler front wall. The numerical model is applied to an Eulerian-Eulerian model of coal combusiton and NOx formation, It uses Eulerian, time averaged, conservation equations for all the dependent variables. Especial attention is paid to the accuracy of the representation of the several physical submodels of the coal particle, such as particle drying, volatilization or heterogenous combustion. In this systematic investigation, burning characteristics of pulverized coal were calcuated temperature, NOx, unburned carbon content of char and exhaust gas composition in utility boiler. Parametric screening studies have been achieved for the suggestion of improvement operating conditions for reducing NOx and unburned carbon content.
분만 후 심한 저혈당이 동반된 림프구성 뇌하수체염 1예의 경과 관찰
손장명,고승현,안유배,주강,이정록,양성은,송기호,손호영,전정수 대한내분비학회 2003 Endocrinology and metabolism Vol.18 No.3
저자들은 출산 후 발생한 심한 저혈당을 주소로 내원한 31세 여자 환자에서 뇌 자기공명영상검사에서 뇌하수체종괴가 관찰되고 복합 뇌하수체 기능검사 결과전반적인 뇌하수체 기능저하증의 소견을 보여 림프구성 뇌하수체염을 진단하고, 호르몬 보충요법만으로 경과를 관찰하여 호전된 예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. Lymphocytic hypophysitis, an inflammatory disease of the pituitary gland that is often associated with pregnancy, is caused by autoimmune destruction of the pituitary gland evidenced by diffuse inflammatory cell infiltration of the pituitary gland and some kinds of detectable autoantibodies. We report a case of lymphocytic hypophysitis in a 31-year-old woman presenting with severe hypoglycemia and hyponatremia after delivery. Hormonal study revealed panhypopituitarism and magnetic resonance imaging with enhancement showed the bulging contour of the right side pituitary gland with an ill-defined mass-like lesion and nodular thickening of the stalk The patient's symptoms and biochemical data improved greatly with replacement of L-thyroxine and glucocorticoid. Partial recovery of panhypopituitarism was also seen. The follow-up tests revealed dramatic resolution of the pituitary lesion (J Kor SOC Endocrinol 1 8 : 3 25 -33 1, 2003).
박종빈,김학렬,주현준,유태양,신성남,신정현,송정섭,황기은,김소영,양세훈,정은택 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.2
최근 흡연을 시작한 젊은 성언에서 급성 호산구성 폐렴의 발생에 대한 증례가 보고되고 있다. 급성 호산구성 폐렴은 대개 발열을 동반하기 때문에 초기에는 감염성 폐렴으로 잘못 진단, 치료되는 경우가 많다. 아직 정확한 병태 생리 및 조직학적 소견은 밝혀져 있지 않지만 병력 청취 및 임상 양상, 방사선 소견의 관찰을 통해 급성 호산구성 폐렴을 의심하고, 진단을 위해 기관지 폐포 세척액 검사를 시행한다면 좀 더 쉽게 진단 내릴 수 있을 것이다. 본 저자들은 최근 처음 시작한 흡연에 의해 발생한 급성 호산구성 폐렴을 진단하고, 스테로이드를 투여하여 성공적으로 치료한 환자 2예를 경험하였기에 이를 문헌 고찰과 함께 보고하는 바이다. Acute eosinophilic pneumonia(AEP) is characterized by acute febrile respiratory illness associated with diffuse pulmonary infiltration and pulmonary eosinophilia. The specific etiology for acute eosinophilic pneumonia is elusive. By some investigators, cigarette smoking is suggested as a causative substance which can cause AEP. In recent, the authors experienced two cases of AEP following cigarette smoking. Both cases had characteristic features including age around 20 years, new onset smoking before occurance of AEP, diffuse infiltration on chest radiography, pulmonary eosinophilia based on bronchoalveolar lavage and acute improvement after steroid therapy. These clinical features are resemble with previous smoking induced AEP case reports. Base on these clinical features, cigarette smoking associated AEP could be diagnosed more easily.
Jeong Seon Yu,Se Jin Lee,Sihyeon Kim,Min Ho Song,Jae Su Kim 한국응용곤충학회 2015 한국응용곤충학회 학술대회논문집 Vol.2015 No.04
Entomopathogenic Beauveria bassiana and Metarhizium anisopliae are well-known biological control agents worldwide and have high potential in industrialization. However their thermo-susceptibility limits long-term storage under high temperature conditions and high insecticidal activity after application to target pests. Herein we isolated highly virulent isolates, B. bassiana JEF006 and JEF007 and M. anisopliae JEF003 and JEF004, and produced in three grains, such as sorghum, millet and Italian millet as substrates for solid cultures, followed by thermotolerance assays to compare the potential of the three substrates for thermotolerance. The JEF isolates were exposed to dry and wet heat at 50°C and overall conidia were more stable under dry heat condition rather than wet heat. Of the three grains, Italian millet was superior to the other grains in the production of thermotolerant conidia. Additionally Italian millet did not severely aggregated, which enabled air to penetrate into the substrate well compared to the sorghum and millet. JEF isolates were more thermotolerant when they were kept in oil conditions as carriers of an oil-based formulation. This work suggests that Italian millet can be used as an effective substrate to produce more thermotolerant conidia, thus maintaining viability for long times under unfavorable environment and biological activity against target pests.
Jeong, Hee-Jeong,Yu, Seon-Mi,Jung, Jae-Chang,Kim, Song-Ja SPANDIDOS PUBLICATIONS 2012 MOLECULAR MEDICINE REPORTS Vol.6 No.5
<P>Sulforaphane?(SFN), a natural compound extracted from cruciferous vegetables, exhibits potent anticancer activity in various types of tumor cells. However, the effect of SFN on the proliferation of chondrocytes is not well understood. In the present study, we addressed the mechanism of action by which SFN suppresses proliferation. We demonstrate that SFN causes an irreversible arrest in cell proliferation, as determined by trypan blue dye exclusion assay and flow cytometric analysis. SFN induced cell cycle arrest at the G2/M?phase by downregulation of cyclin?B, cdc2 and cdc25c and upregulation of p21WAF1/CIP1 and p53 in a dose- and time-dependent manner, as determined by western blot analysis. Our data suggest that SFN regulates cell cycle arrest at the G2/M phase in rabbit articular chondrocytes.</P>