• 정보화사회
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• s.105
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• pp.42-44
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• 1996

길을 모르는 목적지도 쉽게, 아는 길도 더 빠른 길로 갈 수 있는 '해법'으로 비상한 관심을 끌고 있는 '자동차항법시스템'의 원리와 기능을 자세히 알아보기로 하자.

• Journal of Korean Society of Forest Science
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• v.102 no.2
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• pp.255-263
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• 2013

This study was carried out to evaluate degradation status of forest trails by analysis of soil physical and chemical properties in Mt. Jiri area of Gyeongnam province. Soil texture was loam in the forest area and sandy loam in the forest trails. Soil bulk density was significantly higher (P<0.05) in the forest trails (1.15 g/$cm^3$) than in the forest area (1.00 g/$cm^3$). The rates of pore space were lower in the forest trails (56.6%) than in the forest area (62.4%). Soil moisture content was significantly different (P>0.05) between the forest trails (13.3%) and the forest area (11.3%) Soil strength was higher at 5 cm of soil depth than at 10 cm of soil depth. It indicates that soil compaction by visitors could be affected at 5 cm of soil depth. Soil strength over 30 cm of soil depth was not significantly different between the forest trails and the forest areas. The content of organic matter, total nitrogen, available phosphorus, and exchangeable cations were lower in the forest trails compared with the optimum content of forest soils because of soil erosion with increasing visitors. These results indicate that it needs a counterplan to protect forest trails from overcrowded visitors.

• Journal of Korean Society of Transportation
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• v.18 no.6
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• pp.33-43
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• 2000

Residential streets play an important role not only as a Place for moving but also as a place for social interactions among urban residents. Social interactions among urban residents are critical factor to draw sense of confidence and communality, and community spirit from the residents. Social interactions among community residents, however, are getting restricted severely by automobile traffic in the residential area. This study shows that the level of social interactions among the residents decreases substantially as traffic volume increases in the area. Other daily activities such as relaxing. playing with children, exercising, and doing small works in the street which can caused social interactions among the residents are also decreased as the volume of automobile traffic increases. Residents living in the area of heavier traffic volume perceive more strongly that automobile traffic is the major reason which deters them from interacting socially each other.

• Journal of Wetlands Research
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• v.11 no.2
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• pp.1-7
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• 2009

In order to select the water flooding-tolerant trees among Korean oaks, we cultivated the sapling of 6 deciduous oak species, Quercus acutissima, Q. mongolica, Q. variabilis, Q. dentata, Q. aliena and Q. serrata, under the water flooding treatment and the control, and analysed the growth difference among them. For comparing the growth between treatment and control, we measured 13 morphological and ecological traits, such as leaf Leaf number, leaf length, leaf width, leaf area, shoot length, stem length, stem diameter, root length, plant length, leaf weight, stem weight, root weight, plant weight. Q. serrata have no growth difference between water flooding treatment and control, but the rest 5 species showed the growth reduction in water flooding treatment. Tolerance of oak species to water flooding was risen in order of Quercus acutissima, Q. mongolica, Q. variabilis, Q. dentata, Q. aliena and Q. serrata. Thus, among Korean deciduous oaks, it is desirable to plant Q. serrata for flood plain restoration of river.

• Digital Contents
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• no.7 s.134
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• pp.102-105
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• 2004

국내 애니메이터들에게 희망을 불어넣어줄 낭보가 잇따라 터지고 있다. ‘오세암’이 세계적인 권위의 국제페스티벌에서 영예의 그랑프리를 수상했고, 국내 단편 애니메이션들의 잇달은 수상 소식도 쏟아지고 있다. 정민영 감독의 단편 애니메이션‘길’도 이러한 국내 애니메이션 업계에 빛을 전해주고 있는 작품중 하나. '길'은 지난 4월 30일(한국시각) 폐막한 제47회 샌프란시스코 국제영화제(San Francisco International Film Festival)에서 금문상(GOLDEN GATE AWARDS)을 수상했고, 지난 5월 6일부터 9일까지 4일간 열린 2004년 부산아시아단편영화제에서 교보상을 수상했다. 러닝타임 14분 45초인‘길’은 일반적인 모션 애니메이션이 아닌 편안한 질감의 인형으로 표현된 클레이 애니메이션으로 독창성이 뛰어나고 탄력적 상상력을 지녔다고 평가된다. 정해진 인생길에 순응해가며 살 수밖에 없는 나약한 인간의 모습을 보여준‘길’을 만나본다.

• The Bulletin of The Korean Astronomical Society
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• v.37 no.2
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• pp.227.2-227.2
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• 2012

대구경 고해상도 광학탑재체의 광구조부는 주반사경과 부반사경 등을 포함한 주요 광학부품들과 검출기를 포함한 초점면 조립부 등을 고정 지지해주는 부분으로, 발사시 전달되는 진동 및 우주 열환경하에서의 길이 안정성을 광학성능 범위내로 유지하여야 한다. 광학탑재체의 성능에 가장 큰 영향을 미치는 것은 주반사경과 부반사경의 광축방향의 길이 안정성으로, 광학탑재체의 작동 온도범위 내에서 수 마이크로미터 내외로 안정성이 요구된다. 이를 실현하기 위하여 주반사경과 부반사경의 간격은 열 및 흡습에 둔감한 탄소섬유 강화수지 복합재로 되어 있는 경통 구조물로 설계, 제작된다. 제작된 경통구조물의 길이 안정성을 검증하기 위해서는 별도의 정밀 측정장치가 필요하게 된다. 본 논문에서는 이러한 길이 안정성 측정장치에 대해 기술한다. 온도에 대해 변화가 거의 없는 (CTE<0.1ppm/K) Zerodur 소재의 막대 구조물을 기준 스케일로 삼았고, 이를 지지하기 위해 Invar 소재의 구조물을 사용 하였다. 주반사경의 베젤부위와 부반사경의 접속부위의 변위 변화를 세점에서 측정하여 길이 안정성을 측정할 수 있게 하였다.

• Journal of the Korean Institute of Landscape Architecture
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• v.41 no.1
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• pp.1-11
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• 2013

In nature, to change the consciousness of those who wish to pursue something new, the road is turning function-oriented 'Walking Path' into purpose-oriented 'Walking Trails'. Though 'Walking Trails' is a long linear journey that leads people to see, to feel and to experience while walking on the trail, but considering on the landscape of trails when selecting routes is lacking. Landscapes, which are felt and perceived while walking on the trail, provide a purpose, and can be an important factor to improve visitor satisfaction. However, the study is insufficient in terms of landscape of trails. Therefore, it is the purpose of this study to find ways to help improving visitors' satisfaction in selecting routes, by analyzing the images and preferences of trails landscapes that are visually perceived, by analyzing the correlation between visitors' satisfaction and them. For this study, landscape assessment was carried out after selecting representative landscape photos of BukhansanDulegil 13 sections and landscape images adjectives for landscape assessment. Through the assessment, analyze landscape images of each section, landscape images factors affecting a wish to walk and landscape preferences, relationship between visitors' satisfaction and them. 'Refreshing' image was higher on the path with many trees and less artificial elements; 'urban' image was higher on the path with artificial elements. 'A wish to walk' and 'landscape preference' was higher on the path showed 'refreshing' and 'pastoral' image with many natural elements. Factors affecting 'a wish to walk' were "refreshing-unpleasant", "impressive-ordinary", factors affecting 'landscape preference' were "refreshing-unpleasant", "comfortable-uncomfortable". In addition, landscape preference was found to have a high correlation with visitors' satisfaction.

• Journal of the Korea Computer Graphics Society
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• v.13 no.3
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• pp.19-24
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• 2007

In this paper, we describe a method of defining an object's real length in order to compare objects' lengths precisely using all real length units in the real world. The browser in our study represents an object's length by referencing to the physical length property defined at modeling when it displays the object. Since objects' lengths are appropriately scaled according to these units, objects can be precisely and visually compared in sire using real world length units. The concept of defining the real length unit is extended to the X3D specification. The units are ranged from $10^{-24}(yotta)\;to\;10^{24}(yocto)$. In addition, we explain the method for processing LOD (Levels Of Detail) and for applying the property of LOLD (Levels of Length Detail) when objects with different LOLD are read into the browser.

• Journal of Korean Philosophical Society
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• v.129
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• pp.267-290
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• 2014

The slippery slope argument means that if we accept a type of action A, we are committed to accepting B, C and eventually N. Then, N is situation which we must not accept morally. It works causal mechnism that B because A is raised, C because B is raised. But in the logic textbooks and treatises, the slippery slope argument is classified as fallacy. The reason is that the argument is not a causal argument. Actually, it is a probable. Also it is argued that the argument is wrong because it fears about the future extremely. But We can not say all slippery slope argument is fallacy even though a slippery slope argument is sometimes fallacy. I think it is persuasive argument in a significant place. Therefore I argue that the argument is not simple logic as a form of thinking, but practical reasoning applied the context of dialogue. So in order to find it to be practical reasoning we demand the new understanding to fallacy theory. In traditionally, fallacy is defined to wrong reasoning logically, but according to Walton, fallacy means a verbal tactic or deceptive trick that can be used to cause someone to fall down in argument. That is to say, whether or not the argument is successful depends on how it uses as argument tactic in a given context of dialogue. Therefore I argue that whether or not the argument is successful, because of it is practical problem used in a context of dialogue, is to be approached to pragma and dialectical method, not semantic.

• 건강소식
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• v.34 no.8
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• pp.28-31
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• 2010

풀밭을 헤집고 기어가는 길은 푸른 자연의 생기를 먹고 자란 뱀처럼 제법 그럴싸하게 구불거리며 숲을 헤치고 지나간다. 서쪽으로 향한 길은 호수를 에돌아 숲으로 들어가더니 모습을 감추었다. 무주 덕유산에서는 이처럼 아름다운 풍경을 배경으로 구름위에서의 산책을 즐길 수 있을 뿐만 아니라 1,000m 평원에 펼쳐진 식탁에서 여름 별미인 도토리묵을 맛보는 즐거움까지 만끽할 수 있다. 그리고 덕유산이 품은 구천동 푸른계곡에 온 몸을 담그면 아이들 웃음소리가 계곡 가득 울려 퍼진다.