• 한국시뮬레이션학회논문지
• /
• 제13권2호
• /
• pp.45-52
• /
• 2004

This paper presents a prototype visualization system of mixed reality for a VR flight simulator. The chroma key technique is used to build the mixed reality model for a VR flight simulator. The Daedeok science town can be visualized in real time according to the rider control. He can also see his own hand/foot operating the control stick/rudder as well as virtual environment projected to the blue-screen using a video-see-through HMD.

• 지식경영연구
• /
• 제5권1호
• /
• pp.83-99
• /
• 2004

This research aims to verify individual and organizational factors that will affect knowledge sharing, especially in research & development organizations with a premise that knowledge sharing is one of the most important factors of successful knowledge management. Many factors which are supposed to affect knowledge sharing arc empirically investigated in this research : individual factors ((1)self esteem (2)expected contribution), organizational factors ((3)top management's will, (4)accessibility of knowledge management system (5)validity of evaluation & reward knowledge sharing, (6)trust, (7)open communication). As a result, it is found that 'expected contribution' among individual factors and 'open communication' and 'validity of evaluation & reward' among organizational factors are highly correlated with knowledge sharing. These findings suggest that enhancement of perceived expected contribution among employees and building cultures of open communication and effective evaluation & reward system for knowledge sharing will contribute to activation of knowledge sharing in the research and development organizations.

• 한국시스템다이내믹스연구
• /
• 제12권2호
• /
• pp.69-94
• /
• 2011

Daejeon, encompassing Daedeok Science Town and Daedeok Innopolis, possesses the advantage of portraying relatively higher regional innovation capacity and facilitating network formation among regional professional research organizations. Applying the Social Network Analysis(SNA) techniques, this paper focuses on divulging structural and spatial characteristics of the Daejeon Information and Communication(ICT) industry network, analyzing co-research projects implemented by the Daejeon-based universities. For the analytical tool, it depends on NETMINER 3.0. Furthermore, based on the Systems Thinking approaches, this study suggests a couple of policy implications. Judging from the Korea Standard Industrial Classification principles, the existing ICT industry is subdivided into 11 sub-industries. The highest degree centralization value comes from the Mobile Communication sub-industry(188.668%), indicating that Mobile Communication sub-industry exerts the most significant impact on the regional innovation networking in Daejeon. Among various stakeholders, Korea Advanced Institute of Science and Technology(KAIST) records the top ranking in most categories, conspicuously leading the institute-industry linkage. In terms of the ICT spatial distribution, the intra-regional cooperation examples present the strongest linkage values, followed by Daejeon-the Capital Region ones. Finally, as well shown in a series of causal loop analyses, this study recommends that Daejeon should put top policy priority in strengthening the internal ICT network within Daejeon proper. Here, Daejeon should keep in mind the fact that there exist reinforcing loops between Daejeon's attractiveness and the entering of new ICT firms.

• The Korean Journal of Ecology
• /
• 제24권3호
• /
• pp.169-180
• /
• 2001

대덕연구단지의 산림식생은 이차림식생과 조림식생으로 구분되었다. 이차림식생은 소나무군락(Pinus densiflora community)과 상수리나무군락(Quercus acutissima community)으로, 조림식생은 아까시나무군락(Robinia pseudoacacia community), 리기다소나무군락(Pinus rigida community), 곰솔군락(Pinus thunbergii community), 밤나무군락(Castanea crenata community)으로 구분되었다. 본 조사지역에서 출현한 종수는 총 217종이었으며, 각 군락별 평균 출현종수는 소나무군락이 21종, 상수리나무군락 20종, 아까시나무군락 20종, 리기다소나무군락 21종, 곰솔군락 21종, 밤나무군락 18종으로 밤나무군락에서 출현종이 가장 적었고, 이차림군락과 조림군락 간에는 차이가 없었다. 귀화식물은 조사구내에서 닭의장풀, 미국자리공, 개망초, 가중나무 등 12종이 출현하였고, 등산로와 산림주변부에서는 오리새, 미국가막사리, 도꼬마리, 까마중 등 19종이 출현하여 총31종의 귀화식물이 조사되었다.

• 한국산림과학회지
• /
• 제100권1호
• /
• pp.88-94
• /
• 2011

본 연구는 대전광역시에서 생육하고 있는 가로수(은행나무와 양버즘나무)를 대상으로 지역별 수종별 광합성 특성 및 수분이용효율, 엽록소 형광반응 그리고 엽록소 함량을 조사 분석하여 환경오염과 수목의 피해 관계를 규명하고 가로수의 향후 유지관리를 위한 기초자료를 제공하기 위해 실시되었다. 조사는 오염이 가장 적을 것으로 사료되는 충남대학교, 신도심 지역으로 교통량이 비교적 적은 대덕연구단지, 다양한 공장이 밀집되어 있는 대화공단, 그리고 교통량이 가장 많고 도로가 오래된 대전역 주변 가로수를 대상으로 실시되었다. 은행나무와 양버즘나무의 광합성 능력은 충남대학교 지역에서 가장 우수하였으며 대전역 지역에서 가장 낮은 값을 보였다. 반면, 수분이용효율은 광합성 능력과 반대로 대전역 지역에서 가장 높은 값을 보였다. 광화학효율과 엽록소 함량은 광합성 능력과 같은 경향으로 충남대학교 지역에서 가장 우수하였으며, 대전역 지역에서 가장 낮은 값을 보였다. 모든 실험에서 은행나무가 양버즘나무보다 양호한 생리적 반응을 보였다.

• Journal of Nutrition and Health
• /
• 제39권2호
• /
• pp.160-170
• /
• 2006

This study was conducted to provide foundation data for making health care policy for married women by assessing the dietary intake between highly educated married, employed and unemployed women. It is a direct interview, cross-sectional study with 24-hour recall method for one day. In selecting the subjects for this study, married, unemployed women were selected from a certain area (Daedeok Science Town) in Daejeon where there are high rates of highly educated women, and the married, employed women were selected from the teaching profession in order to avoid confounding due to including a variety of jobs. According to the Korean Standard Classification of Occupations, teaching is the representational occupation of highly educated, married women. Then, to prevent confounding due to age, we selected the subjects out of each age group at the same rate through random sampling. Women who had not graduated college, worked only part-time, or had no current spouse were excluded. As a result, 486 highly-educated, married, unemployed (250) and employed (236) women were used for analyzing data. The unemployed women consumed a higher amount of fat, cholesterol, sodium, vitamin C and folic acid while the employed women consumed a higher amount of iron, vitamin $B_l$ and vitamin $B_2$. P/M/S ratio being 1/1.18/1.05 and 1/1.05/0.87, for the unemployed women and the employed women, respectively, unemployed respondents had a higher saturated fat intake than those of employed. It is in excess of the standard ratio (1/1/1) of the Korean RDA. At the same time, in unemployed respondents the percent of energy intake from fat (24.8%, 23.2%) and animal fat (12.4%, 11.4%) were higher than those of employed respondents. The mean daily nutrient intake of calcium, zinc, and iron for both groups of respondents were lower than the Korean RDA. Both groups had phosphorus as the highest nutrient and calcium as the lowest nutrient of INQ (Index of Nutritional Quality) while nutrients with the INQ being less than 1 were calcium and iron. To sum up, the following conclusions can be made: Nutrition education and guidance for reduction of the intake of fat, especially animal fat, are necessary for unemployed women. In addition, highly educated, married, unemployed and employed women should increase the consumption of foods rich in iron and calcium to prevent anemia and osteoporosis, while decreasing the intake of phosphorus to balance proportions of calcium and phosphorus.