• 제목/요약/키워드: ecological perspectives

검색결과 118건 처리시간 0.025초

남조류 Anabaena 휴면포자의 연구 동향 및 방향 (Current Status and Perspectives in the Akinete Study of the Blue-green Algal Genus Anabaena)

  • 강필구;이송지;변명섭;윤성애;김헌년;이재관;황순진
    • 생태와환경
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    • 제47권1호
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    • pp.1-12
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    • 2014
  • 남조류는 겨울철에 휴면포자의 형태로 퇴적층에서 존재하다가 적합한 환경조건이 되었을 때 다시 영양세포로 전환된다. 이렇게 전환된 영양세포는 성장에 적합한 환경이 되었을 때 대량증식 하게 되어 수체 내에서 우점한다. 이전까지의 국내 대부분의 연구는 수체 내 영양세포의 변동과 환경인자와의 관계 또는 영양세포에 대한 생리생태적 연구부분에 국한되었다. 하지만, 휴면포자에서 영양세포로 진행되는 부분에 대한 연구가 조류 대량증식의 궁극적인 기작이 되므로 휴면포자에 대한 연구는 조류의 생활사를 이해하는 데에도 매우 중요하다. 또한 다른 조류들간의 변동 및 천이의 연구를 위해서도 필수적이다.

Distribution characteristic of invasive alien plants in Jeju Island

  • Ryu, Tae-Bok;Kim, Mi-Jeoung;Lee, Chang-Woo;Kim, Deok-Ki;Choi, Dong-Hui;Lee, Hyohyemi;Jeong, Hye-Ran;Lee, Do-Hun;Kim, Nam-Young
    • Journal of Ecology and Environment
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    • 제41권6호
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    • pp.173-181
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    • 2017
  • Background: This study was undertaken to analyze the distribution and ecological characteristics of invasive alien plant species on Jeju Island, and to provide basic data for their management and control. Results: A field research was conducted at 436 locations on Jeju Island. The field research identified nine species of invasive alien species growing on Jeju Island. Based on the distribution pattern, Hypochaeris radicata L., Rumex acetosella, and Ambrosia artemisiifolia L. were found to be distributed horizontally throughout Jeju Island, with vertical growth in two or more vegetation zones, from warm temperate to the subalpine zone. Widely distributed species penetrate various habitats, such as grasslands, ranches, roadsides, farmlands, and empty lots, and have an immensely negative impact on the ecosystem, including declining biodiversity on Jeju Island. Paspalum distichum var. indutum Shinners, Paspalum distichum L., Solanum carolinense L., and Aster pilosus Willd. were distributed in some areas as a biased distribution species, whereas Lactuca scariola L. and Solidago altissima L. were found only in certain areas as centralized distribution species. Conclusions: The centralized distribution species and biased distribution species of the invasive plants in the ecosystem of Jeju Island should be physically eliminated, keeping in mind the short- and mid-term perspectives and monitoring, and by considering expansion of additional distribution areas. Due to limitations of physical/chemical elimination, time, and cost, widely distributed species require to be eliminated and managed, mainly to restore the integrity of the ecosystem, by planting native species to reestablish the habitat.

과학 기술 시대 평생교육 방향 탐색 (Exploring Direction of Lifelong Education in Age of Science and Technology)

  • 윤옥한
    • 문화기술의 융합
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    • 제9권5호
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    • pp.65-73
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    • 2023
  • 과학 기술 시대 평생교육은 국가의 교육정책의 한 방편으로 도입되면서 공적 지원이 어느 때 보다 확대되고 있다. 이 연구의 목적은 과학 기술 시대에서의 평생교육의 방향을 탐색하는 데 있다. 과학 기술 시대 평생교육의 방향성을 결정하는데 다양한 요소들을 고려해야 하지만 본 연구에서는 주로 과학 기술 시대에 초점을 맞춘 방향성을 제시하면 첫째, 직업교육으로서 평생교육이 필요하며, 둘째, 디지털 심화 교육으로 평생교육이 필요하며. 셋째, 생태전환 관점에서 평생교육이 필요하다. 과학 기술 시대 평생교육의 방향은 이러한 세 가지 관점을 중요하게 생각하고 어떻게 평생교육이 구체적으로 이바지할 것인가에 대한 후속 논의가 있기를 기대한다.

농촌쇠퇴에 대한 주민 인식 분석을 통한 지역 활성화 방안 제시 - 전라북도 진안을 대상으로 - (Analyzing Residents' Perceptions of Rural Decline for Proposing Strategies to Revitalize the Region - Focusing on Jinan, Jeollabuk-do -)

  • 배가람;송기환;김상범;전진형
    • 농촌계획
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    • 제30권1호
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    • pp.43-55
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    • 2024
  • The purpose of this study is to examine residents' perspectives on factors contributing to rural decline, including population decrease and landscape degradation, with the goal of proposing strategies to revitalize rural spaces in response to these challenges. After exploring rural decline issues in Jinan, a questionnaire was developed based on a review of existing research. Following this, participants were selected, and Focus Group Interviews(FGI) were conducted. Through the analysis of the findings, strategies for local revitalization were suggested in four sectors. Based on the research findings, there is a need to reassess public transportation and vacant property projects. On the social front, preventing the misuse of rural relocation policies and enhancing residential environments through spatial clarity are essential. Environmentally, clustering renewable energy and livestock facilities and attracting educational facilities are necessary to minimize disruption to rural landscapes. From a governance perspective, fostering entrepreneurship in rural tourism and business models utilizing the local landscape is crucial for an increase in regional visits. This study holds significance by emphasizing the practical situation of rural decline, steering away from resource-centric or business-focused policies. It underscores the potential usefulness of integrating this understanding into detailed planning within policies aimed at tackling rural decline.

원유유출 방재로봇의 컨셉디자인 (Conceptual Design of Oil Spill Protection Robot)

  • 김지훈;김명석
    • 로봇학회논문지
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    • 제3권4호
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    • pp.345-350
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    • 2008
  • This study aims to propose the concept design of oil spill protection robot which can rapidly intervene to control the oil spillage situation at the sea. Taking into account the fact that a huge amount of oil is transported trans-continentally by oil tanker, none of industrialized countries are completely safe from the marine oil spill which results in social, economical and ecological damages to their communities. The employment of double hull-oil tanker, pipe line transporting can be most safe way. Yet complete prevention of oil spill is probably not realistic. Accordingly the alternative solution to control marine oil spill and minimize the damages caused by the incident using intelligent robot technology based on swarm control method is proposed. The main features of oil spill protection(OSP) robot is explained via following three perspectives. Firstly, from functional point of view, OSP robot system safely and efficiently replaces oil boom installation manually conducted by human workers with intelligent robot technology based on swarm control theory. For second, its modular architecture brings efficient storage of main components including oil boom and facilitates maintenance. For the last, its geometric form and shape enables whole system to be installed to helicopter, boat or oil tanker itself with ease and to rapidly deploy the units to the oil spill area.

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Holistic, Collaborative, Ecological, and Coevolutionary Characteristics of Service Design Process

  • Lee, Dong-Seok
    • 대한인간공학회지
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    • 제31권1호
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    • pp.7-13
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    • 2012
  • Objective: This paper discussed the characteristics of service design process by comparing with product design process. Background: Service design has different design outcomes, project participants, and design constraints than product design. Method: The comparison took two perspectives: one was shorter-term, design process of a service, and the other was longer-term, process of service development. Results: It was discussed that service design process is similar in overall, but has four differences. First, the role of design is required earlier and longer in the process, which means service designers need to participate from the begging of the project to service operation. Thus service designers are required to have holistic viewpoint of the project. Second, service design requires many design expertise thus collaboration needs to be well defined and managed throughout the process. Third, since service provider has limited resources, regulations, and market competition, some service features cannot be provided. Service designers are required to know both customers' needs and functional constraints. Last, service design is highly coupled with service operation. Designing and providing service happens at the same time and evolves over time. Conclusion: Consequently it was asserted that the role of designers in service design is essential for success. In specific, the role of service design architect, who manages design process and design outcomes, is a new and important role in service design project.

어포던스 기반 FSA모델을 이용한 대피자 행동 모델링 및 시뮬레이션 (Modeling and Simulation of Emergent Evacuation Using Affordance-based FSA Models)

  • 주재구;김남훈
    • 대한산업공학회지
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    • 제37권2호
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    • pp.96-104
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    • 2011
  • Modeling and simulation of human-involved complex systems pose challenges to representing human decision makings into logical systems because of the nondeterministic and dynamic nature of human behaviors. In modeling perspectives, human's activities in systems can increase uncertainty and complexity, because he or she can potentially access all other resources within the system and change the system states. To address all of these human involvements in the system, this research suggests applying the Finite State Automata (FSA)-based formal modeling of human-involved systems that incorporates the ecological concept of affordances to an evacuation simulation, so that human behavioral patterns under urgent and dynamic emergency situations can be considered in the real-time simulation. The proposed simulation methodologies were interpreted using the warehouse fire evacuation simulation to clarify the applicability of the proposed methodology. This research is expected to merge system engineering technologies and human factors, and come out to the new predictive modeling methodology for disaster simulations. This research can be applied to a variety of applications such as building layout designs and building access control systems for emergency situations.

환경친화적 관점에서 본 실내외 공간의 통합적 디자인에 관한 연구 (A Study on Integration of Interior Space and Exterior Space from Pro-environmental Perspectives)

  • 우지연
    • 한국실내디자인학회논문집
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    • 제13권4호
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    • pp.66-73
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    • 2004
  • When we make a place for people, interior space and exterior space are always connected, each influencing the other. To create a better space or increase the quality of an existing space, it is essential to look at the relationship of inside and outside and their boundaries. Without consideration of the landscape, the building itself gives only limited satisfaction to people. This is an important issue for anyone who deals with space. This study intends to explain the important need for a change in attitude towards our built environment and its intrinsic relationship with its natural context. In the study, I try to find design concepts for integration of inside and outside which have accumulated since early Modernism designers and consider cases with different solutions and approaches that make total design sense when looking at the inside and outside as a whole, then, through observation of the cases, I find 5 design methods(Opening, Continuing, Insulting, Wrapping, Interpreting) in connecting the two spaces and analyze the solutions. The various examples which are shown in each patterns will help us to find ideas for the best solutions of integration of inside and outside. It is true that the idea of integration of inside and outside will increase the quality of our environment and it comes with the current thoughts of ecological and sustainable design. Thereby, I suggest designers to change their manner to continuous and integrated point of view in dealing with built environment.

빅터 호르타의 주택설계에 나타난 근대적 특성에 관한 연구 (Modern Characteristics of Victor Horta's Domestic Architecture)

  • 황보봉
    • KIEAE Journal
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    • 제9권2호
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    • pp.73-80
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    • 2009
  • In the early twentieth century, many architects still practised eclectic design elements. Emergence of new building materials such as steel, concrete and glass were not yet found fresh roles in architectural design. It was Brussels that the use of modern materials gave rise to their new forms and gave influence to not only building skins but also spatial organization. Art Nouveau architecture is often seen as revolutionary and pioneering modern architecture against eclectic classicism prevalent in the 18th and 19th centuries. Despite the fact that some scholars point out that Art Nouveau is more a transient phenomenon than modern architecture proper, no one would deny that Art Nouveau carries a good deal of modern characteristics. This paper intends to show rather ambivalent perspectives upon Art Nouveau architecture. Although it insinuates overly dynamic nature in architectural languages, it does not hamper us from reading Art Nouveau as a vital component of modern architecture. Through a careful analysis of the early domestic designs of Victor Horta, it becomes evident that his work can provide modern architecture a meaningful alibi for its growth. Victor Horta's house design is well known to the public, both for his classical tastes and for its changing implementation. Horta's modern quality is never adequately recognized, partly due to his eye catching modern iron properties and sinuous ornamentation. This paper tries to offer an insight into the complicated stage set of the fin-de-$si{\grave{e}}cle$ through the work of Victor Horta whose influence has been immense in the making of modern architecture.

자연환경보전·이용시설의 조성방안에 관한 기초적 연구 (A Study on the Facility Establishment for Nature Environment Conservation and its Utilization)

  • 이동근;최재용
    • 한국환경복원기술학회지
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    • 제5권3호
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    • pp.40-49
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    • 2002
  • The objective of this research is to suggest the appropriate natural environment conservation facility management plan in Korea through development of the proper definition and categorization. Bearing the above objective, this study employs the comparison and analysis between domestic and international case studies. Furthermore, several survey methods have been adopted as check-lists for the evaluation of the sample sites and quantitative interviews with government officials and visitors to investigate their perspectives. On the consequence, firstly it was found that considering ecological types and objectives, the proper applicability of natural environment conservation facility could be disaggregated into three types of eco-park, eco-experience and education, and eco-observation facility. Secondly, based on the interview results, the necessity of provision of the natural environment conservation facilities was strongly found among the governmental officials and the residents groups who also expect the expansion of the facilities. Lastly, it appears necessary that the expansion of supporting projects and programs on the natural environment conservation facilities, the estimation and provision of the appropriate funding for monitoring, management and operation, the arrangement of resident experts, and activation of the nature environment education programs.