• Title/Summary/Keyword: Environmental issue

Search Result 1,533, Processing Time 0.021 seconds

Analysis of the Influence of Urban Land Cover Changes on the Thermal Environment of the Atmospheric Boundary Layer Using Computational Fluid Dynamics Model (전산유체역학 모델을 이용한 도시 지표 피복 변화가 대기 경계층 열적 환경에 미치는 영향 분석)

  • Kim, Ji-Seon;Yoo, Jung-Woo;Na, Mun-Soo;Kim, Yong-Gil;Lee, Soon-Hwan
    • Journal of Environmental Science International
    • /
    • v.29 no.12
    • /
    • pp.1153-1170
    • /
    • 2020
  • With global warming and the rapid increase in urbanization accompanied by a concentration of population, the urban heat island effects (UHI) have become an important environmental issue. In this study, rooftop greening and permeable asphalt pavement were selected as measures to reduce urban heat island and applied to a simple virtual urban environment to simulate temperature change using ENVI-met. A total of five measures were tested by dividing the partial and whole area application of each measure. The results showed that the temperature range of the base experiment is 33.11-37.11 ℃, with the UTCI comfort level described as strong heat and very strong heat stress. A case applied permeable asphalt has a greater temperature difference than a rooftop greening case, the larger the area where each condition was applied, the greater the temperature change was.

Analysis of Crime Prevention Environment Design Elements in Old Building Districts -Focused on the Daegu Metropolitan City Safety Village Project- (노후건축지구의 범죄예방환경디자인 요소 분석 - 대구광역시 안전마을만들기사업 중심으로 -)

  • Kang, Kyung-Ha;Son, Byeung-Hun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2021.05a
    • /
    • pp.301-302
    • /
    • 2021
  • Recently, there has been a large social issue about the environmental sector for safe zones from crime. Since 2010, starting with Seoul, most local governments have enacted ordinances related to crime prevention environmental design (hereinafter referred to as CPTED) and are showing active movement. In this study, as part of a method to understand how to use the design elements applied to CPTED, the safety village creation project of deteriorated construction districts in Daegu Metropolitan City was conducted, focusing on the 10 project destinations using CPTED, and the CPTED application elements were evaluated by CPTED. The analysis was conducted according to the basic principles, and the elements related to the architectural plan of the environmental design elements were reviewed. In order to extract the environmental design elements of the project site, the CPTED guideline appropriate for the sector was used based on the standard guidelines for environmental design for crime prevention in Daegu City and the contents of the crime prevention urban design ordinance.

  • PDF

The Development of STEAM Education Textbook on Water Pollution (물의 오염도 측정에 대한 STEAM 교육 교재개발)

  • Hong, Min-Ah;Hwang, Book-Kee;Choi, Jung-Hoon
    • Journal of Environmental Science International
    • /
    • v.21 no.8
    • /
    • pp.909-929
    • /
    • 2012
  • It is an after-school material for elementary school student based on STEAM education which has a theme of water pollution as a global issue. First of all, we take a look at various ways of measuring water pollution and among them, we include experiment for student to know about the water pollution by using indicator organisms. Next, we examine how some elements in our daily life affect on water and provide class with systematically technological and engineering solution. With this text book, we let the student recognize environmental problem and seek for the solution about it. Therefore, it helps student to connect with stream of thought.

A Study on the Relationship between Environmental Scanning of Fashion Merchandisers and Characteristics of Information Sources (패션머천다이저 환경탐색 형태와 정보매체 특성과의 관계에 관한 연구)

  • Kim, Sung-Kun;Im, Nam-Young
    • Journal of Information Technology Applications and Management
    • /
    • v.15 no.4
    • /
    • pp.137-157
    • /
    • 2008
  • Fashion merchandiser profession is a highly information-intensive job. In fact, a merchandiser is to acquire a variety of information mainly from external environment and to analyze it in order to come to an informed decision. Despite a significant amount of past studies on environment scanning, their main concern was of managerial work. And, some fashion design studies have only touched the issue of information source in a descriptive tone. Here, we attempt to analyze empirically fashion merchandisers' environmental scanning activities. Our results can be stated as follows : 1) Though the quality of information source has a positive relationship with its use, the accessibility does not. 2) There is no significant difference between the use of relational source and the use of non-relational source. 3) Internet is being used more at the initial stage(opening) of information seeking than at the orientation and consolidation stage.

  • PDF

A Study on Tourist Psychological Capacity of Scenic and Historic Area and Its Influencing Factors - A Case Study of Mount Tai Scenic Spot

  • Cao, Lin-Sen;Piao, Yong-Ji;Zhang, Rui;Cho, Tae-Dong
    • Journal of Environmental Science International
    • /
    • v.23 no.5
    • /
    • pp.755-761
    • /
    • 2014
  • Tourist Psychological Capacity (TPC) is an important issue of the Tourism Capacity research. We gained the tourist satisfaction through the questionnaire investigation in Mount Tai Scenic Area and obtained the tourist satisfaction function using SPSS17.0 regression analysis method. Then we got the best psychological capacity of tourists with the Marginal Satisfaction Method. Finally we verified the influencing factors on TPC. The study found that the best TPC of Mount Tai Scenic Area is 10323 persons; Female shows lower TPC than male. Moreover, female satisfaction is more easily influenced by visitors' number increasing than male satisfaction; TPC plays negative correlation with the increasing of age. Teenagers and adults have no much difference in TPC, but the seniors present a relatively lower TPC than other; The higher education, the smaller TPC.

Interaction effect of Chemical Mixtures (혼합물에서 화학물질간의 상호작용 효과)

  • Leem Jong Han;Shin Joo-Youn;Kim Yong-Kyu
    • Journal of The Korean Society of Clinical Toxicology
    • /
    • v.3 no.1
    • /
    • pp.11-16
    • /
    • 2005
  • Chemical mixtures of components, each of which are present at less than guidance concentrations, may be hazardous due to additivity, interactions, or both. Toxicological interactions may increase the health hazard above what would be expected from an assessment of each component singly, or all components additively. So chemical mixture are a particular issue in public health. There are several approach to assess whether there are additivity or interaction in assessing toxicological effects, such as, components-based approach, physiologically-based pharmacokinetic /pharmacodynamic(PBPK/PD) models, hazard index method, and weight-of evidence method. If we consider interaction or additivity effects in assessing the health effects of chemcial mixtures, we can get more accurate information about toxicological effects and dose-response relationship in chemical mixtures.

  • PDF

The Impact of Organizational Improvisation on Market Orientation

  • Kim, Seung-Ho;Shim, Joon-Sup
    • International Journal of Contents
    • /
    • v.8 no.1
    • /
    • pp.82-87
    • /
    • 2012
  • Organizational improvisation, the convergence of planning and execution, has emerged as an alternative approach to the limitations in strategic planning. Organizational improvisation has a significant impact not only on organizational performance, but also on market orientation, which has emerged as a key issue in the field of technology commercialization. This study investigates both the effect of organizational improvisation on market orientation, as well as the effect of environmental turbulence and time pressure on organizational improvisation. Results show that organizational improvisation has a positive influence on market orientation, with a stronger effect on the diffusion of market information. This is greatly impacted by environmental turbulence and time pressure. As a result, promoting competencies in organizational improvisation at the corporate level is suggested as a significant means to enhance market-oriented organizational innovation.

Marine Pollution in Korean Seas: An Emerging Environmental Issue (우리 나라 주변해역의 오염현황과 오오원)

  • 이동수
    • 한국해양학회지
    • /
    • v.28 no.2
    • /
    • pp.132-136
    • /
    • 1993
  • Attempt was made to identify potential pollutants in Korean Sean and to assess their environmental qualities. Existing pollution data for these Seas so scarce that environmental quality assessment was not possible. However, numerous pollutants were identified. Among them, heat and radioactivity from electric power plants, organic wastes from ocean dumping and land based sources, and accidentally spilled oils are suspected to be of most concern.

  • PDF

The Stream Restoration Program Evaluation Issue (하천복원사업 평가기준의 과제)

  • Choi, Mihee
    • Journal of Environmental Impact Assessment
    • /
    • v.15 no.1
    • /
    • pp.13-22
    • /
    • 2006
  • The Korean government adopted the integrated stream water management policy recently with growing perception that natural disasters and pollution in Korea have been due not only to such human factors as urbanization and industrialization, but also to the policy of functionally separated management of irrigation, flood control and ecological management. Contrary to its good intention, research result shows that it is not realistic to expect that this new integrated policy in Korea will work well. In order to be an effective policy and program evaluation, this paper suggests that evaluation indicator on related programs and projects should be made through bottom-up process. For example, environmental benefit should be taken into account rather than just economic benefit, and cultural and social characteristics in the project region should be also considered seriously.

The Spreading Strategy of Environmental Education Based on the Status of Selecting Rate of Environment Subject in Secondary School (중등학교 환경교과 선택현황에 기초한 환경교육 확산방안)

  • Eom, Eun-Hui;Lee, Su-Jong;Kang, You-Jeong
    • Hwankyungkyoyuk
    • /
    • v.17 no.1
    • /
    • pp.133-143
    • /
    • 2004
  • This study aims to explore the ways in spreading and maturing of environmental Education(EE) in secondary school. To deal with this issue, researchers investigate the actual conditions of EE and grope for the ways in spreading and maturing of EE. According to investigation, the selecting rate of environment subject in secondary school is about 3%(compared selecting rate of other subject matters) in 2003. Based on the result, this study suggests followings. First, sequencing strategy of EE curriculum will be expected very efficaciously. Secondly, there is need to empasize daily experiences of EE beyond the formal subject matter. Thirdly and ultimately, thers is need to reform school curriculum centered EE. Moreover, there is need to empasize teacher education for the environment not only pre service but also in-service teacher training.

  • PDF