조직기업가정신에 관한 실증연구

윤종록,위홍복,염명곤 동의대학교 경제경영전략연구소 2004 經濟經營硏究 Vol.2 No.1

This research proposed and tested a conceptual model that examined the difference between entrepreneurship and organizational effectiveness. The result are as follows. First, Entrepreneurship has influenced significantly to organizational commitment, job satisfaction and creativity. Second, according to dynamic environment, entrepreneurship has influenced significantly to a organizational commitment and job satisfaction, but has not influenced significantly to a creativity. Lastly, according to risk-taking of CEO, entrepreneurship has influenced significantly to a job satisfaction, but has not influenced significantly to an organizational commitment and creatively. Therefore, a variables of dynamic environment and personality of CEO have showed a role as moderator in the relationship between entrepreneurship and organizational effectiveness.

임의 형상의 개수로에서의 복잡한 흐름에 대한 고정도 수치해석

윤종성,강인식,안성욱,강주복 釜山大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.50 No.-

본 연구의 목적은 일반곡선좌표계에서의 St. Venant 방정식을 MacCormack 차분법으로 처리한 2차원 부정류 모델을 개발함과 동시에 수리실험결과를 통해 흐름의 메카니즘을 파악하고 개발한 모델의 적합성 및 적용성을 검증한다. 본 수치모델이 상·살가 혼재하는 2차원 흐름을 잘 재현하고 있다고 생각되므로 본 수치모델은 낙차공동의 설치에 의한 급변 흐름의 유동을 표현하는데 유용할 것으로 생각된다. The purpose of this is to develop a numerical model of two-dimensional unsteady flow, which is composed of St. Venant equation on the general curve-linear coordinates by MacComack's scheme. First, this study comprehends the flow mechanism through the results of hydraulic experiments. Second, it verifies and feasibility of the present numerical model. The numerical model developed by this study regenerated well a coexisting sub-and super-critical two dimensional flow. Therefore, this model will be useful to express suddenly changed flow by hydraulic structures.

일본의 중심시가지 활성화에 관한 동향

윤상복,윤시운,오석기,이종식 동아대학교 건설기술연구소 1999 硏究報告 Vol.23 No.2

Currently, Suburbanization of commercial function in local and metropolitan city of Japan brought about doughnut phenomenon of city center, which made it seriously devastated. This study aims at the grasp of the depressed phenomenon caused by doughnut, providing a fundamental guide for activation of the central city in Korea through analysis of trends and strategy about it in Japan.

한인진 추출물의 간장보호 작용에 관한 연구

이순복,조태순,윤기욱,이종찬,이선미,심성보 성균관대학교 약학연구소 1998 成均藥硏論文集 Vol.10 No.1

The dose-response effect of polysaccharide extracts(PS-1) from Artemisia iwayomogi was investigated under various hepatic disease models. Silymarin, DDB and UDCA were used as reference compounds. We found that the maximal effective dose of PS-1 was 100 ㎎/㎏ b.wt. in CCl_4-induced hepatotoxicity, D-galactosamine-induced hepatitis, in ANIT-induced cholestasis and 300 ㎎/㎏ b.wt. in CCl_4-induced chronic liver disease, 30 ㎎/㎏ b.wt. in chronic bile duct ligation and chronic ethanol fatty liver. These findings suggest that PS-1 fraction protects the hepatocyte against various hepatic injuries, and this fracton might be of therapeutic value.

항암제(Adriamycin, Cyclophosphamide, 5-Fluorouracil)로 유발된 흰쥐의 간독성에 대한 Squalene의 효과

최영복,김종세,윤중식 조선대학교 기초과학연구소 1998 自然科學硏究 Vol.21 No.1

The objective of the present study was to investigate the cytotoxicity of Adriamycin〔ADM〕. Cyclophosphamide〔CP〕, 5-Fluorouracil〔5-FU〕 in mouse liver cells (group A, B, c), and the protective effect of squalene to the hepatocytes to which ADM, CP, and 5-Fu-induced cytotoxicity(group A-1, B-1, C-1) was examined by transmission electron microscope. In the group A, The cisternae of rough endolplasmic reticulum(RER) and smooth endoplasmic reticulum(SER) are dilated/disoriented at 24 hours and 48 hours. The inner and outer membrane of mitochondria are detached or destructed, and attached ribosomes of RER are diminished in number. The cisternae of the SER are dilated, and the cristae of mitochondria are disrupted at 72 hours and 96 hours. In the group A-1, the cisternae of the RER and the SER are dilated at 24 hours. The cisternae of the SER are dilated at 48 hours. The cell organelles of hepatocytes are recovered from cytotoxicity at 72 hours. At 96 hours, hepatocytes were simillar to those of normal hepatocytes. In the group B, the cisternae of RER were partially destructed and attached ribosomes were remarkable decreased at 24 hours. A number of the mitochondria were dilated and increased in number, the filamentous materials also detected at 72 hours. In the group B-1, the difference between the normal and the treated groups were not detected at 24 hours, but the few mitochondria were expanded at the 72 hours. In the group C, the nucleus was destroyed at 24 hours and 48 hours group, however, somewhat repaired at 72 hours group. The dilated inner cavity and the irregular lamellae of the RER were observed continually until 72 hours group. The inner cavity of the SER were dilated in all groups. However, the destroyed and the normal membrane were observed simultaneously at 72 hours group. The inner membrane of the mitochondria were almost repaired at 96 hours group. In the group C-1, the nucleus was a little finfluenced by the toxicity of 5-Fu at 24 hours and 48 hours, RER were observed to keep the typical lamella structure of cisternae from 24 to 72 hours group, but inner cavity kept on dilating. In SER, inner cavity were also observed to flatten from 24 to 72 hours group. Mitochondria were always shown normal. All cell organelles were similar to those of normal at 96 hours. Accordingly, it can be said that the treatment of SQ prevents the cytotoxicity of ADM, CP, 5-FU on cell organelles of liver cell and that is concerned with the formation of membrane system of cell organelles.

호텔 예식이벤트의 마케팅 방안 연구

이복희,임범종,윤병국 한국관광정보학회 2002 觀光情報硏究 Vol.- No.11

This study analyzed factors that customers consider importantly in selection the wedding events of hotels located in Yusung Area and how these factors are dimensioned. Thus, this study analyzed demographics of buyers of hotel wedding service such as sex, age, job, marital status, income, etc., and examined of there is any significant difference in hotel selection factors as each of demographic variable changes. The study also analyzed of general factors such as service, price, equipments, menu, information source, affects hotel selection in wedding event. The continuous study of hotel wedding is needed to provide high-quality service through understanding customers needs and wants and thus to magnify the market and to develop the diferentiated wedding event product based on customers' continuous feedback which as one do the most important profit source of the hotel.

백서의 일과성 국소허혈-재괄류 모델에서 U-74389G와 MK-801이 뇌경색 크기에 미치는 효과

김재일,김종민,양대웅,이근호,윤병우,노재규,이상복 대한신경과학회 1999 대한신경과학회지 Vol.17 No.1

흰민들레 (Taraxacum coreanum) 추출물이 급성 수은 중독된 생쥐의 간에 미치는 효과

정민주,윤중식,허진,노영복,최영복,김종세,이현화 韓國電子顯微鏡學會 2008 Applied microscopy Vol.38 No.1

본 연구는 급성 수은 독성에 대한 민들레의 효과를 알아보기 위하여 시도되었다. 30 g 내외의 생쥐를 대상으로 대조군, 수은(5mg/kg) 투여군, 수은 투여 후 민들레(3 g/kg)를 구강투여 한 후 다시 24, 48, 72, 96시간, 1주일군으로 세분하여 간장 손상 억제 효과를 알아보기 위하여 생화학적 및 조직학적 실험을 실시하였다. 혈액중 aspartate amiotransferase (AST)와 alanine aminotransferase (ALT)의 수치는 민들레 투여군이 수은 투여군보다 감소되었다. 또한 간조직의 SOD와 catalase 활성도 역시 민들레 투여군이 수은 투여군에 비하여 감소하였으나 통계학적 유의성은 없었다. 간 조직의 광학현미경적 관찰에서 심한 조직괴사가 관찰되지만 민들레 투여군에서는 문맥주위의 약간의 괴사와 심한 호중구 침윤현상이 관찰되었다. 전자현미경적 관찰 결과, 간장에서 수은 투여군은 간세포의 핵이 함입되어 불규칙했으며 미토콘드리아와 조면소포체의 수조가 팽대되고, 리보솜의 탈락이 관찰되었다. 민들레 투여군은 핵이 정상적인 상태로 관찰되었고, 전자밀도가 높은 미토콘드리아가 분포되어 있었으며, 리보솜이 부착된 상태로 층판구조를 형성하는 조면소포체가 관찰되었다. 이상의 연구 결과로 보아 민들레가 수은으로 유발된 간손상을 보호하는 효과가 있는 것으로 사료되며 민들레에 대한 다양한 연구가 필요할 것으로 사료된다. Dandelion has been frequently used as a remedy for women’s disease, inflammatory diseases and disorders of the liver and gallbladder. Dandelion extracts water extract, an herbal medication, may have an effect on the activity of hepatic antioxidant enzymes in diabetic rat. This study aims demonstrate the effect of dandelion extracts, one of the natural chelator, on the biochemical and enzyme activity changes in the mouse liver caused by HgCl₂. Mice approximately 30 gm in weight were grouped into the control, mercury chloride-treated, and the dandelion extractstreated after mercury chloride groups. HgCl₂ (5 mg/kg) and dandelion extracts (3 g/kg) were delivered orally. Serum AST and ALT were measured, enzyme activity of liver were examined by spectrophotometer and ultrastructural alteration of liver were examined by light and electron microscopy. Dandelion extracts were decreased the increase of serum AST and ALT level induced by mercury. The catalase activity was decreased in the dandelion extracts group. The activity of SOD was dereased, but did not show significant differences. Mercury chloride-treated hepatic cell were irregular nucleus, enlarged and reduced number of mitochodria, enlarged rough endoplasmic reticulum, loss of ribosomes. Cells treated with dandelion extracts were similar to those of the control group. In conclusion, dandelion extracts may protect the mercury-induced toxicity on Liver.

沙上地域 産業體 勞動者의 職場體育 參與擴大 方案

安永弼,鄭琮勳,鄭三鉉,金海禮,趙在基,朴俊東,金垠利,張禎允,金福善,孔庚鎬 東亞大學校附設스포츠科學硏究所 1989 스포츠科學硏究論文集 Vol.7 No.-

최대운동부하시 단련자와 비단련자의 호흡순환기능 비교연구

유승희,김복현,송종국,윤형기,박찬호 경희대학교 체육과학연구소 1996 體育學論文集 Vol.24 No.-

We studied the differences of cardiorespiratory function of the untrained group and the trained group. The findings are following: 1.In ventilation, trained group was higher than untrained group. In addition, there was significant difference(p〈.001) at 60% and 85% exercise levels and All-out time. 2.In respiratory rate, tranined group was higher than untrained group. In addition, there was significant difference(p〈.01)at 85% exercise level and All-out time. 3.In respiratory gas exchange, trained group was lower than untrained group. In addition, there was significant difference(p〈.01) at All-out time. 4.In oxygen intake per weight, trained group was higher than untrained group. In addition, there was significant difference(p〈.001) at 40%, 60%, and 85% excercise levels and All-out time. 5.In heart rate, trained group was lower than untrained group. In addition, there was remarkable difference(p〈.0901) at rest.