• KOMUNHWA
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• no.49
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• pp.261-270
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• 1996

• KOMUNHWA
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• no.49
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• pp.271-281
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• 1996

• The Mathematical Education
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• v.21 no.1
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• pp.1-8
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• 1982

• Journal of the Korean Institute of Landscape Architecture
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• v.45 no.4
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• pp.45-53
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• 2017

Although the recent interest in and favor for natural burial has increased, there are still few who choose it as a funeral. The purpose of the study is to supply necessary information to promote the choice of natural burial. For this a survey of 430 students and residents was conducted in Daejeon. The result of the research is as follows. First, there is a significant difference in use intention of natural burial by age and religion. People under the age of 30 and Catholic believers recorded the highest score in use intention of natural burial. Second, there was a significant difference in information on natural burial by age or religion, in religion and philosophy by age, in physical environment by sex or age, and in conservation by sex or age. In general, the lower the age, the higher the positive perception of natural burial was. While females had a more positive perception of physical environment than males, males had a more positive perception of conservation than females. All sub factors of the perception of natural burial such as information on natural burial, funeral style, religion and philosophy, physical environment and conservation had a significant and positive effect on its use intention. However, ratio skew showed that religion and philosophy had the strongest effect on use intention of natural burial, followed by funeral style, physical environment, conservation, and information on natural burial.

• The Journal of Korean Academy of Prosthodontics
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• v.62 no.1
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• pp.47-53
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• 2024

Interproximal contact loss (ICL) is the most frequent complication in partially edentulous patients treated with implant-supported prostheses. However, in most cases, ICL occurs between the implant prosthesis and the natural tooth due to the movement of the natural tooth. There are several causes of ICL that occur between an implant prosthesis and a natural tooth. There are only a few reported cases of ICL occurring between implant prostheses, and explaining the causes of ICL between implant prostheses and natural teeth is challenging. This clinical report describes cases of ICL between implant prostheses and discusses its causes and countermeasures.

• Hwankyungkyoyuk
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• v.10 no.1
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• pp.115-128
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• 1997

MZ는 국제적 환경 생태 지대가 될 수 있으며, 황해의 한-임진 강어귀를 열곡 중심에 있는 철원 유역과 이으며, 동해안 바위투성이 해안에 있는 설악산과 금강산 사이의 태백산까지 잇는다. 이 통일의 자연 기념비는 인류의 희망의 성지와 많은 사람들이 목숨을 잃은 국경 지대에서 평화의 상정이 된 멸종 위기의 학의 보호 구역이 될 수 있다. White-napped 학 (Grus vipio), Red-necked 학 (Grus japonensis), 아시아에서 충성의 상징인 Hooked 학 (Grus monacha)은 곧 멸종할 운명에 처해 있다. 임진강 어귀 근처에서 시작되는 귀중한 풍경은 여러분의 유산을 재발경하고, 풍경에 내재된 본질적인 자연?문화적 가치를 포착하고, 그리고 환경적으로 건강한 개발을 하면서도 다음 세대를 위해 그것들을 보존할 완전한 자원망이다. 환경교육은 '고객으로서의 장소'의 모델과 연계된 환경 교육은 DMZ의 미래를 위한 일치된 의견을 이뤄내는 관문이 될 것이다.

• Journal of the Korean Magnetics Society
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• v.11 no.6
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• pp.245-249
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• 2001

Natural convection of a magnetic fluid is different from that of Newtonian fluids because magnetic body force exists in an addition to gravity and buoyancy. In this paper, natural convection of a magnetic fluids (W-40) in annular pipes was studied by experimentally. Inside wall was kept at a constant temperature (25 $^{\circ}C$), and outside wall was also held at a constant but lower temperature (20 $^{\circ}C$). The magnetic fields of various magnitude were applied up. This study has resulted in the following fact that the natural convection of a magnetic fluids was controlled by the direction and intensity of the magnetic fields.

• Journal of the Korean Institute of Gas
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• v.20 no.5
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• pp.1-8
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• 2016

The autoignition temperature (AIT) of a substance is the lowest temperature at which the vapor ignites spontaneously from the heat of the environment. The AIT is important index for the safe handling of flammable liquids which constitute the solvent mixtures in the process. This study measured the AITs of n-butanol+p-xylene mixture by using ASTM E659 apparatus. The AITs of n-butanol and p-xylene which constituted binary system were $340^{\circ}C$ and $557^{\circ}C$, respectively. The experimental AITs of n-butanol+p-xylene mixture were a good agreement with the calculated AITs by the proposed equations with a few A.A.D.(average absolute deviation).

• Journal of The Korean Association For Science Education
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• v.23 no.1
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• pp.9-20
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• 2003

In this study, elementary school students' views about nature were searched. The participants were 18 students of fifth grade and sixth grade. Data were collected via semi-structured interviews involving a set of elicitation devices used to encourage students to talk about their views about nature, The results showed as follows; (1) Elementary school students had diverse views and common views about nature, (2) Their views about nature were affected by various factors, such as religion, aesthetical aspect, science, society, and so on. So when science educators construct science curriculum, they must consider these factors. (3) It is necessary to be concerned about the relations between science curriculum and others.

• Journal of Korean Society for Geospatial Information Science
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• v.10 no.3 s.21
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• pp.123-130
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• 2002

This study is aimed to build an effective information management system for natural ecosystem in local Kang-wha area. We analyze the management strategies for the information related to environment ecosystem and natural ecosystem. A prototype is applied to equip search functions for related-agency information, natural environmental information, spatial information, and ecosystem information. It is also capable of editing the information for related-agency information and natural environmental information. Developed various for future study, a prototype of natural eco-information management system will be operated, which discovers and selves potential problems. It is, in turn, utilited for environmental management system of water quality, air quality and waste management. As the final goal, it is expected to build a total environment information management system by integrating those different environmental information systems.