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생산공법차이에 따른 죽력에 민괴화근을 배합한 약물이 db/db mouse의 혈당강하에 미치는 영향
황진석,장경선,김진근,최찬헌,오영준,Hwang, Jin-Seok,Jang, Kyeong-Seon,Kim, Jin-Keun,Choi, Chan-Hun,Oh, Young-Joon 대한동의생리학회 2005 동의생리병리학회지 Vol.19 No.3
This study was carried out to understand the effects of Bambusae Caulis in Liquamen manufactured by different production process and Rosa rugosa on blood sugar in the db/db mice. Bambusae Caulis in Liquamen(L-BCL, H-BCL) manufactured by low or high temperature production process and Rosa rugosa were used. The effects of L-BCL, L-BCL+Rosa rugosa, H-BCL and H-BCL+Rosa rugosa were observed in terms of blood sugar, creatinine, BUN, ALT in db/db mice. The results were as follows : The amount of glucose was significantly decreased (P<0.01) in the experimental groups compared with the control. The amount of Creatinine ovserved decrease in the case of L-BCL group. The amount of blood urea nitrogen observed significant decrease in the case of H-BCL and H-BCL+Rosa rugosa groups. The amount of ALT did not show any differences among five groups.
모형가스터빈 연소기에서 분무각 변화에 따른 연료농도 및 화염온도 분포
황진석(Jin-seok Hwang),변용우(Yong-Woo Byun),성홍계(Hong-Gye Seong),구자예(Ja-Ye Koo),강정식(Jeong-Sik Kang) 한국항공우주학회 2008 韓國航空宇宙學會誌 Vol.36 No.10
KIVA3V를 이용하여 모형 가스터빈 연소기에서 Jet-A의 분무와 연소에 관한 수치해석을 하였다. 연소기 형상은 6개의 희석홀을 가지며, 스월효과를 고려하였다. 연소 특성을 해석하기 위해 열적 NO 발생을 고려하였다. 다양한 분무각에 대해서 Jet-A 증기, 화염온도 분포와 NO 발생량에 대하여 비교하였다. 분무각이 커질수록 1차 영역에서 연료 증기가 비교적 고르게 나타나게 되며 증발이 더욱 빠르게 되고, 주변 기체와 연료 증기 사이의 혼합이 증가한다. 그 결과 고온부가 넓게 나타나게 되고, 이에 의해 열적 NO 발생이 증가한다. Jet-A spray and combustion were numerically analyzed in annular type combustor model using KIVA3V. The combustor geometry have 6 dilute holes. Swirl effect and thermal NO were considered in this investigation to analyze mixing and combustion characteristics. Fuel vapor, flame temperature, NO generation were investigated for various spray angle. As increase of spray angle, Jet-A vapor appeared uniformly in primary zone and evaporation rate was increased. Mixing between fuel vapor and ambient gas was enhanced as increase of spray angle. As a result, high temperature region appeared widely and thermal NO generation rate was increased.
종아리에서 발생한 과립세포종양의 세침흡인 세포학적 소견 - 1예 보고 -
김선영,황진석,권혁포,양주헌,노재수,양완석,Kim, Sun-Young,Hwang, Jin-Seok,Kwon, Hyuck-Po,Yang, Ju-Heon,Roh, Jae-Su,Yang, Wan-Suk 대한세포병리학회 2004 대한세포병리학회지 Vol.15 No.2
Granular cell tumor is characterized by large eosinophilic cells with granular appearances. These are mostly benign. Approximately $1\sim2%$ are malignant, and establishment of reliable criteria for diagnosing malignant granular cell tumor has been difficult to establish because oi the rarify. Reports on the cytologic features of this neoplasm are hardly found in Korea. We report a case of rarely-occurring granular cell tumor in the lower leg of a 40-year-old male, diagnosed on fine needle aspiration cytology, together with a review of the literature regarding significant adverse histology and prognostic factors. The aspirates revealed cellular smears of isolated cells, syncytial clusters, and occasionally stripped nuclei in a nine, bluish-purple, granular background. Tumor cells were polygonal, rounded, or slightly spindled, and showed ill-defined granular cytoplasm. Nuclei were small and round or oval, with inconspicuous or small, prominent nucleoli. The nuclei showed rare intranuclear cytoplasmic invagination. Occasionally, there were mild to moderate nuclear pleomorphisms with vesicular nuclei, with large, prominent nucleoi, but no mitosis. The immunocytochemical stain for S-100 was strongly positive in the cytoplasm of tumor cells with occasional nuclei.
정봉진(Bong Jin Jeong),이기수(Kee Su Lee),정의중(Eui Jung Choong),황진석(Jin Seok Hwang),김영환(Young Hywan Kim) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.3
Schizencephaly is an unusual condition rarely detected antenatally. It is a neuronal migrational disorder consisting of clefts in the brain that communicate with the lateral ventricles. The etiology and the pathogenesis is not clearly estabilished. While some authors advocate a vascular insult with a secondary effect on brain development, others suggest a primary cerebral dysgenesis by genetic or acquired factors. The importance of making an accurate antenatal diagnosis is that the outcome for schizencephaly in considerably poor than for other causes of ventriculomegaly. Typical symtoms include seizures, mental retardation, spastic tetraplagia and blindness. We report a case of type II schizencephaly that was diagnosed antenatally in the third trimester with a brief reiew of literatures.