• 대한기계학회논문집A
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• 제26권1호
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• pp.153-159
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• 2002

Brittle materials such as ceramics and glasses show fragile fracture due to the low toughness and the crack sensitivity. When brittle materials are subjected to impact loading by small spheres, high contact pressure occurs to the surface of the specimen. Local damage is subsequently generated in the specimen. This local damage is a dangerous factor which gives rise to the final fracture of structures. In this research, impact damage of soda-lime glass plates by small spheres was evaluated by considering the effects of impact directions of indenter, pressure condition of specimen and residual strength after impact loading.

• 한국항해항만학회지
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• 제37권2호
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• pp.143-148
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• 2013

본 연구의 목적은 빙해역을 운항하는 선박의 쇄빙시 깨진 해빙에 의해 선수부 좌현 외판에 작용하는 국부 빙하중을 계측한 신호의 특성을 조사하는 것이다. 한국 최초의 쇄빙연구선인 아라온호를 이용하여 2010년 8월초 북극해에서 실선 시험을 수행하여 선수부에 설치된 변형률 게이지로부터 국부적인 빙하중에 의한 신호를 계측하였다. 국부적인 빙하중에 의한 구조 응답 특성을 반영한 계측 신호는 전형적인 유체 충격압에 대한 하중-시간 이력과 다소 다른 특성을 갖는 것도 있음이 파악되었다. 본 연구에서는 계측 신호에 대한 시간 이력을 분석하고, 무차원화된 특성값들로 나타내었다.

• 농업과학연구
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• 제33권1호
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• pp.73-84
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• 2006

The purposes of this study were to investigate the influence of local residents' nature environment attitudes for National Park development impact perceptions and to examine application possibility of nature environment attitude for resolution information of National Park management conflicts. Thirty items of residents' perceptions and opinions were designed from previous tourism impact studies. The new environmental paradigm(NEP) was used to measure local residents' nature environment attitudes. In April, 2003, 239 questionnaires were obtained from interview survey in local residents' villages near Gyearyongsan National Park. Generally, most of the local residents perceived low economic effects and negative environment impacts for National Park development. Nature environment attitudes levels were significant differences with socioeconomic variables of local residents, specially high in age, education level and influenced their perceptions toward National Park development impacts. The results were suggested that the nature environment attitudes could be provided a useful reverential framework in resolution of National Park management conflicts.

• 환경영향평가
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• 제24권2호
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• pp.119-133
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• 2015

본 연구의 목적은 탐색적 연구방법을 통해 지방정부의 LID 적용에 영향을 주는 인자를 밝히는데 있다. 이를 위해서 미국 버지니아주의 지방정부 10곳을 사례조사지로 선정하여 LID 적용정도를 구분하였고, 이에 영향을 주는 요인으로 LID의 특성, 지방정부의 특성, 지방정부의 동기요인, 지방정부 외부의 영향 등을 혁신의 확산이론을 바탕으로 발전시켰다. 지방정부의 LID 적용정도 및 영향인자는 우수관리관련조례, 회의록, 인터뷰와 그 밖의 지자체 문서를 바탕으로 평가하였다. 연구결과에 따라 높은 LID 적용정도를 보인 지방정부 사례의 경우 해당 지방정부와 지역 커뮤니티에서 LID를 적극적으로 옹호하는 챔피언의 역할이 매우 크게 나타났다. 반면에 중간 및 낮은 정도의 LID 적용상태를 보인 지방정부의 경우는 외부적 요인 즉, 주정부의 강제적 법적규제가 중요한 요인으로 작용했으며 명확한 LID 적용모델에 대한 요구가 높게 나타났다.

• 한국환경교육학회지:환경교육
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• 제20권3호
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• pp.63-75
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• 2007

This paper focused on examining the middle school students' perceptions of characteristics(personal knowledge, human responsibility, impact on personal life, and predicted trend, behavior will) of 10 global and 8 local environmental issues. Subjects(N=516) demonstrated by completing a survey that they perceived the characteristics of issues differently on global and local scales, and to a degree those characteristics are related. First, middle school students' perceptions of global and local environmental issues were above mid-point mainly, and perceptions of local environmental issues were higher than those of global environmental issues. At perceptions of characteristics, They perceived that the personal knowledge of global environmental issues were higher than those of local issues, that the human responsibility effects on global environmental issues more than local environmental issues, that global environmental issues in the future, will be more serious. For each environmental issues, the perception of global warming among the global issues was highest, the perception of yellow dust and air pollution among the local issues was highest. For perceptions of characteristics, behavior will to solve the environmental issues was lower than that of 4 characteristics(personal knowledge, human responsibility, impact on personal life, and predicted trend). Second, there was significant difference of the perceptions of two scale environmental issues for area and sex. It showed that Seoul students' perceptions were higher than Kong-ju students' perceptions according to area, and that girl students' perceptions were higher than boy students' perceptions according to sex. Third, correlations among issues were significant. Especially, it was positive relationship between knowledge and human responsibility, human responsibility and impact on personal human responsibility and predicted trend. Educators and communicators should take into account the perceived characteristics of environmental issues and choose effective information sources and teaching methods to improve students' understanding of human-induced environmental changes.

• 환경영향평가
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• 제10권3호
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• pp.245-255
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• 2001

The management of water, both the quantity and the quality, has been one of the most important issues in the public investment and it is equally true in the field of sustainable development. Nevertheless, the jurisdiction of local governments has been delineated without much attention to the issue of the water management. In the planning of wide areas such as cities, countries, the metropolis, and the megalopolis, it is necessary to well arrange the geographical jurisdiction of local governments as a unit of region. The river water system, including small streams to large rivers, should be given its due share in the planning and jurisdictional delineation. The traditional concept of the local government's jurisdiction emphasizing the accessibility may be fading away. Instead, the efficiency of the public management would be the main concept in determining the jurisdiction of local governments. The river improvement, the waterworks, the sewage, the maintenance of water quality, the space of water recreation, are relatively important in the efficient management of that area. This paper argues for the equalization between the geographical jurisdiction of local governments and watersheds. To this end, I do case studies of the local governments areas such as Ri(里), Eup Myon(邑 面), Si Gun(市 郡), KyangyokSi Do(廣域市 道). The study interprets ARS will be one of the principles of land use and the reorganization of the local jurisdiction in the future as a geo-systematic and the eco-systematic criteria.

• 환경영향평가
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• 제28권3호
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• pp.299-311
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• 2019

본 연구는 야생동 식물 보전 및 관리를 위해 제정된 지자체 야생동식물 보호 조례의 지정 현황 등을 조사 분석하고 이를 통해 문제점 및 개선방향을 도출하기 위하여 이루어졌다. 이를 위해 17개 광역지방자치단체(특별시 광역시 특별자치시 도 특별자치도)의 야생생물보호 관련 조례와 각 조항의 내용을 비교 분석하였고, 각 지자체의 보호야생생물의 지정현황을 파악 후 지침 및 법률을 바탕으로 적정성을 파악하여 보았다. 시 도보호 야생생물관련 조례는 모든 광역지자체에서 제정되어, 일반적으로 선정기준, 보호대책, 행위제한 등의 조항이 공통적으로 반영되어 있었다. 또한 세부적으로는 깃대종, 복원 추진계획에 있는 생물을 선정기준으로 추가하거나, 서식지역에 대한 보호 및 복원에 대한 조항이 포함되어 있는 등 각 지자체의 특성에 따라 조항이 상이하였다. 시 도보호 야생생물 지정 및 보호 지침이 마련된 2006년 이후로 시 도보호 야생생물이 급격하게 증가하였으며 최근 1~2년 이내에 새로 지정한 광역지자체도 존재하였다. 일부 지자체의 경우 지정된 지 10년이 넘은 곳도 있었으며, 선정기준에 부합하지 않은 곳도 다수 있는 것으로 나타났다. 이러한 문제점을 해결하기 위해서는 시 도보호 야생생물의 목적에 맞는 종 선정을 위한 보다 과학적이고 객관적인 선정기준 및 방법이 구축되어야 할 것이라 판단된다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 추계 학술논문 발표대회
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• pp.28-29
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• 2014

In this study, flexural strength by fiber reinforced for steel fiber and reinforced polyamide fiber concrete, and concrete fracture properties by improvement of flexural toughness and high-velocity projectile impact were evaluated. As a result, it was confirmed that flexural strength are improved by distribution of stress and suppress of cracks, and the back desquamation of concrete by high-velocity projectile impact is suppressed. In addition, It was observed that the spalling of rear is caused when tension stress is caused as shock wave by high-velocity projectile impact was transferred to the rear and tension stress is suppressed by fiber reinforcement.

• 한국산림과학회지
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• 제100권2호
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• pp.218-225
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• 2011

본 연구의 목적은 국립자연휴양림이 지역경제에 미치는 경제적 파급효과를 지역산업연관분석에 적용하여 자연휴양림의 조성 정책의 타당성을 확인할 수 있는 전략적 수단을 발굴하고자 시도되었다. 지역산업연관분석은 한국은행(2009)에서 발표된 지역산업연관표를 활용하여 자연휴양림의 생산, 소득, 부가가치, 고용파급의 승수효과 분석을 통하여 지역내(內)와 지역외(外) 경제적 유발효과를 분석하였다. 그 결과 하나의 국립자연휴양림이 지역에 미치는 경제적 파급효과는 지역내(內)에서 연간 생산파급은 3,380백만원, 소득파급 328백만원, 부가가치파급은 1,017백만원, 고용파급은 22명인 것으로 나타났다. 그리고 지역외(外)에 미치는 연간 생산파급은 687백만원, 소득파급은 85백만원, 부가가치파급은 245백만원, 고용파급은 6명인 것으로 나타났다.

• 디지털산업정보학회논문지
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• 제20권1호
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• pp.149-160
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• 2024

This paper was conducted to improve understanding of how the start-up process affects the local community and how young entrepreneurs build and grow their businesses in the process through analysis of young people who started businesses in the region. The research method was conducted through in-depth interviews with 10 young entrepreneurs who started businesses in the western Gyeongsangnam-do region, where population decline is prominent, and the collected data was analyzed through a grounded theory approach to derive common and meaningful themes between each case. proceeded. As a result of the study, insights were derived about the background of entrepreneurs settling in the region, the motivation for starting a business using local resources, the impact of government and local government support, business strategies for sustainable growth, and the entrepreneurs' personal performance. Through this analysis, we hope to provide important insights into the positive impact local entrepreneurship has on the community and how young entrepreneurs contribute to local development.