http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
강은규,박성일,김상훈 한국물리학회 2008 새물리 Vol.57 No.6
Saturn's rings are composed of numerous inter-stellar particles, including ices, and have been considered to be examples of an astronomic fractal. Analysing a picture of Saturn's rings, we introduced a method to calculate the fractal dimensions of the rings. We showed that a cross-section of Saturn's rings could be a Cantor set with fractal dimension 0.935. Also, we calculated the fractal dimensions of the whole ring pattern which has the form of a Cantor target, as a function of the radius. As the radius was increased, the dimension increased sharply from 0 and oscillating abruptly, to 2 and finally stable. 토성의 고리는 얼음조각을 비롯하여 수많은 성간물질로 구성되어 있어 천체 프랙탈의 한 예로 볼 수 있다. 토성 고리의 사진을 분석하여 고리의 단면과 고리 전체의 프랙탈 차원을 구하고 그 결과를 분석하였다. 토성 고리는 단면의 차원이 0.935인 캔토어 집합으로 볼 수 있다. 반면에 토성 고리 전체는 캔토어 과녁으로 볼 수 있는데 반지름의 변화에 따른 프랙탈 차원의 변화를 구하였다. 고리 중심에서는 0차원이나, 고리가 나타날 무렵부터 차원이 급격히 요동치며 증가하다, 고리 중간을 넘어서면 거의 2차원에 가까운 값으로 안정한다.
성낙도,송종환,강은규,정훈성 한국응용생명화학회 2005 Journal of Applied Biological Chemistry (J. Appl. Vol.48 No.4
The comparative molecular field analyses (CoMFA) models for the herbicidal activities against barnyardgrass (Echinochloa crus-galli) and rice plant (Orysa sativa L.) by the substituent (R) on the hexahydroisoindol-1-one ring in a series of new 2-(4-chloro-5-(2-chloroallyloxy)-2-fluorophenyl)-3-thioalkoxy-2,3,4,5,6,7-hexahydroisoindol-1-one derivatives were conducted and discussed for selectivity between both plants. The statistical results of the two best models (B2 & R7) showed the best predictability for the herbicidal activities based on the cross-validated value q2 (r2cv. = 0.529~ 0.755)and none cross-validated value (r2 ncv.= 0.937~0.945), respectively. Based on the findings, the predictability and fitness of the model (B2) for barnyard grass was better than that of the model (R7) for rice plant. From the two models and contour maps, it is revealed that the novel selective character for herbicidal activity between the two plants depend on the electrostatic field and steric field for the substituent of ortho-positions on the S-phenyl group as R-substituent in hexahydroisoindol-1-one ring. 새로운 2-(4-chloro-5-(2-chloroallyloxy)-2-fluorophenyl)-3-thioalkoxy-2,3,4,5,6,7-hexahydroisoindol-1-one 유도체의 hexahydroisoindol-1-one 고리상 R-치환기 변화에 따른 논피(Echinochloa crusgalli)와 벼(Orysa sativa L.)에 대한 제초활성에 관한 비교 분자장 분석(CoMFA) 모델을 유도하고 두 초종에 대한 선택성에 관하여 논의하였다. 가장 양호한 두 모델(B2 및 R7)의 통계결과는 교차 확인값 q2(r2cv.= 0.529~0.755)과 비교차 확인값(r2ncv.=0.937~0.945)에 기초하여 가장 양호한 예측성을 보였다. 그리고 논피에 대한 모델(B2)의 예측성과 적합성이 벼에 대한 모델(R7) 보다도 통계적으로 양호하였다. 또한, 두 모델과 기여도로부터 정전기장과 hexahydroisoindol-1-one 고리상 S-phenyl 기의 ortho-위치에 있는 입체장이 두 초종 간 선택적인 제초활성에미치는 중요한 요소이었다.
박지환,박서화,강은규,경규천,안효동,안소연 이화여자대학교 의과학연구소 2016 EMJ (Ewha medical journal) Vol.39 No.1
Mucormycosis is a rare disease caused by fungi. Most commonly involved sites of mucormycosis infection are sinuses, lungs, skin and soft tissues. Systemic risk factors for mucormycosis are diabetes mellitus, neutropenia, corticosteroid use, hematological malignancies, organ transplantation, metabolic acidosis, deferoxamine use and advanced age. Local risk factors are history of trauma, burns, surgery and motor vehicle accidents. We present a case of cutaneous mucormycosis in a patient with diabetes mellitus. A 66-year-old female with uncontrolled diabetes mellitus, admitted with necrotizing lesion after minor abrasions on leg. We took a culture of the lesion and it is diagnosed with mucormycosis. Disease progressed despite administration of systemic amphotericin B. We performed above-knee amputation and changed antifungal agents into liposomal amphotericin B. A tissue biopsy showed nonseptate, irregularly wide fungal hyphae with frequent right-angle branching. Our case report suggests that patients with risk factors should be observed carefully.
변세진 ( Se Jin Byun ),강은규 ( Eun Kyu Kang ),박서화 ( Seo Hwa Park ),정현숙 ( Hyun Sook Jung ),윤성보 ( Seong Bo Yoon ),김영우 ( Yong Woo Kim ) 전북대학교 의과학연구소 2014 全北醫大論文集 Vol.38 No.2
Acute thromboembolic occlusion of the superior mesenteric artery (SMA) is a life-threatening condition with high mortality, and the lack of accurate and readily available diagnostic clues often results in delay in diagnosis and treatment. We describe the case of a 68-year-old man suffering from SMA thromboembolism presenting as acute heart failure.
보존적 치료로 성공한 양측성 자발성 신동맥 박리에 의한 신경색 증례
박기현 ( Ki Hyun Park ),강은규 ( Eun Gyu Kang ),박서화 ( Seo Hwa Park ),김민욱 ( Min Wook Kim ),김현수 ( Hyun Soo Kim ),윤성보 ( Seong Bo Yoon ),김영우 ( Young Woo Kim ) 전북대학교 의과학연구소 2014 全北醫大論文集 Vol.38 No.2
Spontaneous renal artery dissection (SRAD) is a rare condition that precedes renal infarction. Most cases of the previously reported SRAD were unilateral renal artery dissection. We report a case of a 56-year-old man who had bilateral spontaneous renal artery dissection with renal infarction. Enhanced abdominal computed tomography (CT) demonstrated wedge-shaped low density lesions in both kidneys. Selective renal angiography disclosed faint distal flow into true lumen of left renal artery and total occlusion of right renal artery. The patient was managed with medical treatment, and he was discharged with an uneventful clinical course.