당뇨병유발백서에서 급성패혈증 병발시 적혈구막지질과산화의 변화

박성우,홍성관,유형준,장대영,강승식,유재명,임성희,최문기,노정우,이규만 대한당뇨병학회 1994 Diabetes and Metabolism Journal Vol.18 No.3

가성 장폐쇄로 발현한 부신경절종 1 예

김용태,이기업,박건춘,송영기,이문호,유은실,이준호,진태선 대한내과학회 1991 대한내과학회지 Vol.40 No.5

Phenochromocytoma is a catecholamine-secreting tumor, most of which grow at the adrenal gland. About 109p Of pheochromocytomas are detected at the extra-adrenal chromaffine tissues and are called paraganglioma. The main symptoms of pheochromacytoma include hypertension, headache, palpitation, and sweating. Gastrointestinal symptoms such as abdominal pain, constipation, and vomiting are found in 20∼40% of patients with pheochromocytoma, but these are usually overlooked because of the severe, prominant cardiovascular symptoms. Intestinal pseudo-obstruction without hypertension in pheochromocytoma is very rarely found. It is caused by the decreased motility of the intestine and the over-contraction of the intestinal sphincter, which are caused by the unbalanced activation of α-and β-adrenal receptors. It can be hypothesized that catecholamine receptors in the cardiovascular system are down-regulated or desensitized, but those in the intestine remain intact. We report herein a case of pheochromocytoma in which intestinal pseudo-obstruction was the main presenting clinical manifestation. Symptoms of intestinal pseudo-obstruction were completely relieved by administration of phenoxybenzamine, an α-receptor blocker, and excisional surgery.

기계적 합금법으로 제조된 Al-Nb 합금 및 Al-Al3Nb 복합재료 압출재의 인장 특성

김상식,박민우,정광철,안인섭,류영빈,이광민 대한금속재료학회(대한금속학회) 1999 대한금속·재료학회지 Vol.37 No.12

Tensile behavior of mechanically alloyed(MA) Al-5 wt.%Nb alloy extrusion was examined at various temperatures and strain rates. The tensile ductility of MA Al-5wt.%Nb alloy extrusion was greatly reduced with increasing temperature and/or decreasing strain rate. The SEM observations of side and fracture surfaces of tensile fractured specimens demonstrated that the overall void density formed during deformation was considerably reduced, along with the sign of decreased plasticity around the dimples on the fracture surface. To understand the effect of grain size on the deformation behavior of submicron grain sized alloys, Al-5 vol. %Al₃Nb composite extrusions with different grain sizes were fabricated and tensile tested at different temperatures. The present study confirms that the reduction in tensile ductility of submicron grain sized alloys at elevated temperatures are undoubtedly related to the grain size. Fast dynamic recovery rates, due to the lack of dislocation substructures, in submicron grain sized alloys appears to be responsible for the elevated temperature reduction in tensile ductility.

Cu/Cr/polyimide 계의 계면파괴에너지

유진,박영배,박익성 대한금속재료학회(대한금속학회) 1999 대한금속·재료학회지 Vol.37 No.2

The interfacial fracture energies, Γ, of the Cu/Cr/polyimide system were deduced using X-ray measurement method and theoretical method with variation of Cu film thickness and pretreatment conditions on polyimide surface. The two methods showed reasonably good agreement for most cases, imparting validity of both approaches. Estimated Γ were quite independent of the metal film thickness and increased with the rf plasma power density of polyimide pretreatment as expected. Estimated values of Γ were 46.8±7.8. 170.3±42.9 and 253.9±44.4 J/㎡ for the rf plasma power density of 0.03. 0.036 and 0.05 W/㎠, respectively.

이소성 ACTH 의 분비에 의한 ACTH 증후군을 동반한 소세포폐암 1 예

김경희,조성태,유재명,우인숙,박명재,박영이,지제근 대한내과학회 1997 대한내과학회지 Vol.53 No.5

About 5% of patients with SCLC have the ectopic production of ACTH. Ectopic ACTH production of SCLC is suspected when patients of SCLC have unexplained metabolic alkalosis and hypokalemia. Most patients lack the classic feature of Cushing's syndrome. According to the recent report, they have poor prognosis, which median survival is less than 4 months and associated with a high rate of complication during chemotherapy. Also a case of paraneoplastic CRH production with SCLC can mimic the ectopic ACTH syndrome hut it can be distinguished by immunohistochemistry or direct measurement of serum CRH level. We report here a case of small cell lung cancer associated with Cushing's syndrome of ectopic ACTH production. That is immunohistochemically provened by staining with ACTH.

지리산 반달가슴곰 상사리 입지와 조망 특성

유재심 ( Jae Shim Yu ),박종화 ( Chong Hwa Park ),우동걸 ( Dong Gul Woo ) 한국환경복원기술학회 2012 한국환경복원기술학회지 Vol.15 No.4

The objective of this study is to investigate the characteristics of the location and prospects of the bear shelves built by Asiatic black bears in the Jirisan National Park. Previous researchers have been analyzed bear shelves in terms of places for resting and eating, but we are going to analyze based on the prospect-and-refuge theory. Characteristics of the sites of bear shelves are measured through field survey and topographic analysis by using digital elevation model (DEM). The normalized difference vegetation index (NDVI) is used to evaluate the optimum location of bear shelves in terms of crown density. Man-made objects are identified by viewshed analysis based on geographical information system (GIS). Findings of this paper can be summarized as follows. First, most bear trees are located deep inside of the mountainous national park, slopes of 30~40 degrees, altitude of 400~1,200m, and relatively low vegetation density with NDVI value of 0.4~0.6 compared to the average NDVI of the park. Second, the average height of bear shelves is 12.44m, or 74% of the average height of bear trees.They are located at suitable places to observe nearby trails and other park facilities. Third, man-made objects within the 100m radius of bear trees include lodge, bear training center, beekeeping camp, and hiking trails. Thus we may temporarily conclude that one of the main criteria of the bear tree selection in the park has been to identify optimum places for the monitoring of human activities in their habitat.

커뮤니티공간으로서의 어린이공원 조성에 관한 연구

김연금,김성주,박환지,유다희,최성용,홍승모,Kim, Yun-Geum,Kim, Seong-Joo,Park, Hwan-Ji,Yu, Da-Hee,Choi, Sung-Young,Hong, Seung-Mo 한국조경학회 2008 韓國造景學會誌 Vol.35 No.6

This study deals with the participatory design process of renovating a children's park. The process should proceed with two major elements. Firstly, the children's park should be designed from the perspective of children. Secondly, it should be designed in consideration of the context of the community. This study is divided into two parts. First is the review of theory concerning the meaning and roles of the children's park as a community space, the importance of children's participation in the design and the participatory method of the children. The second is the case study. The site for the case study is Ssial Park in Nowon-Gu, Seoul. The entire process of the case study is with community participation, from identifying the park's problems to the actual construction. At every step, through the participatory programs, the community participates in the decision making. In addition, mutual understanding among participants is pursued through diverse means of communication. The following results of the case study were found. Firstly, diverse participatory programs and the active trial to enable the community to communicate contribute to the sense of ownership and responsibility concerning the park Secondly, the community can negotiate the differences in opinions without needing the help of experts. Of course, there are limits in the case study, such as the fact that the community organization, which is the core of communication and maintenance concerning the park, is not organized through the process of a case study. Another is that more diverse methods, which inform all community members of the participatory process, should have been used.

HYBRID VOLTERRA SYSTEM WITH TWO TYPES OF IMPULSES

Park, Jong-Seo,S.A. Belbas,Kim, Seon-Yu 晋州敎育大學校 科學敎育硏究院 2006 科學敎育硏究 Vol.29 No.-

본 연구의 목적은 충격을 받는 조건이 두 가지 유형과 다중 적분을 갖는 볼테라 적분 방정식의 어떤 특성을 포함하는 방정식의 색다른 부류를 조직적으로 확립하고 분석해 보고자 한다. 여기서 우리는 반복하는 방법에 의하여 주어진 조건의 적분방정식에 대한 해의 존재성과 유일성을 구조적으로 밝히는데 그 목적이 있다. 본 논문을 통한 발전적인 연구가 수행되면 여러 가지 자연현상을 모델화하여 적용함으로 인해 이론적인 부분뿐만 아니라 응용적인 면에서 아주 많이 적용될 것으로 생각되며 전자공학, 자동제어, 생물학, 의학 등의 다양한 실생활의 문제에 활용이 가능한 충분한 가치가 있으리라 생각한다. In this paper, we formulate and analyze a novel class of equations that contain some of the characteristics of Volterra intergral equations with multiple integrals and two types of impulsive terms. We will give a constructive proof of existence and uniqueness of solutions by an iteration method.

Comparison of essential oil composition between Angelica gigas and Angelica acutiloba

Park,C,H,Juliani,H,R,Park,H,W,Yu,H,S,Simon,J,E 한국자원식물학회 2003 Plant Resources Vol.6 No.3

Two kinds of Angelica belong to Umbelliferae collected, the one is Angelica gigas that is inhabitant in Korea and the other is Angelica acutiloba that is indigenous in Japan at the field of Snyder Research and Extension Farm Rutgers University, New Jersey and was analyszed by GC and GC/MS. The composition of the essential oil of the different aerial parts of the Angelica has been studied. The oil yields obtained upon hydrodistillation were 0.18% (v/w) in Korean Angelica and 0.44% (v/w) in Japanese Angelica on dry root weight basis. By the growing stage in the Rutgers greenhouse condition, leaf and root of essential oil content a little decreased on 9 months later than 4 months later except for Angelica gigas leaf. Both of Angelica showed that amounts of essential oil content presented in order of leaf > petiole > root according to different plant part. The analysis of the essential oil from Angelica root led to the identification of 14 constituents totaling 64% in Korean Angelica and 13 constituents totaling 68% in Japanese Angelica. The major constituents of the Angelica root essential oil were ligustilide (47 %) and gamma terpi (14 %) in Korean Angelica, and alpha pinei (32 %) and nonane (25 %) in Japanese Angelica

폐암환자에서 발생한 Clostridium difficile 대장염의 임상적 특성

( Chul Park1 ),( Ki Eun Hwang ),( Do Sim Park ),( Yu Ri Hwang ),( Chang Hwan Seoul ),( Hak Ryul Kim ),( Eun Taik Jeong ) 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.-