• Title/Summary/Keyword: Environmental issue

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Health Effects of the Chernobyl Accident (체르노빌 사고의 건강 영향)

  • Jeong, Mee-Seon;Jin, Young-Woo
    • Journal of Environmental Health Sciences
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    • v.37 no.4
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    • pp.237-249
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    • 2011
  • The Chernobyl accident was a terrible catastrophe for humanity. Scientists are in concurrence about an increase of thyroid cancer incidence among children, but not among adults, because even areas less contaminated by radiation have also reported an increase in the incidence of thyroid cancer. In this case, the rise might be due to a screening effect. There is no convincing evidence that the incidence of leukemia and solid cancer has increased among the exposed populations, but it still remains a controversial issue. Additionally, apparent evidence of decreased fertility and increased hereditary effects have not been observed in the general population. WHO suggested 4,000 people could have died or may die in the future among emergency workers and residents of the most contaminated areas, while Greenpeace insists there will be 93,080 victims around the world. The radiation dose due to Chernobyl was mainly low, so if its health effects are to be found, more long-term and welldesigned research will be needed.

The Effect of Corrosion Inhibitor on Corrosion Control of Copper Pipe and Green Water Problem

  • Lee, Ji-Eun;Lee, Hyun-Dong;Kim, Gi-Eun
    • Environmental Engineering Research
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    • v.17 no.1
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    • pp.17-25
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    • 2012
  • Concern about green water problem has surfaced as a serious issue in Korea. In order to solve this problem, it is necessary to research inhibition of green water and corrosion control of copper pipe in water service. This paper discovered that moderate corrosion inhibitors can solve the green water problem and copper corrosion in water service by adding the optimal concentration of corrosion inhibitors based on regulation. Firstly, in the case of phosphate based corrosion inhibitors, as dosage of the corrosion inhibitor increases from 1 mg/L to 5 mg/L, the relative effect of corrosion inhibitor declines rapidly. Secondly, except for 1 mg/L dosage of silicate based inhibitor, relative effects of the inhibitor displays a positive number depending on inhibitor concentration. The most significant result is that the amount of copper release shows a downward trend, whereas the phosphate based inhibitor accelerates copper ion release as the inhibitor dosage increases. Thirdly, as the dosage of mixed inhibitors increases to 10 mg/L, the copper release change shows a similar trend of phosphate based inhibitor. Lastly, according to the Langelier saturation index (LI), silicate based inhibitors have the most non corrosive value. Larson ratio (LR) indicates that phosphate based inhibitors are the least corrosive. Korea water index (KWI) represents that silicate based inhibitors are most effective in controlling copper pipe corrosion.

Study on the heavy metal stabilization by dosing of chelate on the bottom ash (소각재에서의 용출억제제를 이용한 중금속 안정화에 관한 연구)

  • Jang, Hyeon-Jong;Kim, Seong-Jung
    • Journal of the Korea Organic Resources Recycling Association
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    • v.17 no.4
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    • pp.81-90
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    • 2009
  • About 35 domestic incinerators are being operated currently. There is waste management policy to reuse waste efficiently and reduce waste through incineration which include reuse, recycling and energy recovery. However, there is a critical social issue that some heavy metals(Cu, Pb) were found in bottom ash from incineration of waste. After incineration, bottom ash is treated with chemicals to prevent second pollution of heavy metals from bottom ash and increase efficiency of heavy metal stabilization.

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Research Trends in KOMPSAT Series (다목적실용위성 시리즈 연구 동향)

  • Lee, Kwang-Jae;Oh, Kwan-Young;Chae, Tae-Byeong;Lee, Won-Jin
    • Korean Journal of Remote Sensing
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    • v.35 no.6_4
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    • pp.1313-1318
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    • 2019
  • The Korea Aerospace Research Institute (KARI) has developed and operated a total of three KOMPSAT series(K-3, 3A and 5). The main purpose of satellite development is to utilize data obtained from satellites. In other words, continuous efforts should be made to improve the accuracy of data processing and expand the application areas. This special issue introduces pre-processing and application technologies based on optic and Synthetic Aperture Radar (SAR) sensors of KOMPSAT series. It is believed that more systematic research and development will be needed as follow-up KOMPSAT series and small satellites are under development.

Issue Difference of Ecosystem Service Demand and Supply through Text Mining Analysis: Case Study of Shiheung using Complaints and Urban Planning Materials (텍스트 마이닝 분석을 통한 생태계서비스 수요-공급의 이슈 차이분석 - 시흥시 민원과 도시계획 자료를 활용하여 -)

  • Lee, Jae-hyuck;Park, Hong-jun;Kim, Il-kwon;Kwon, Hyuk-soo
    • Journal of Korean Society of Rural Planning
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    • v.24 no.3
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    • pp.63-71
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    • 2018
  • The comparison of demand and supply is needed for efficient ecosystem services planning. However, the gap between them cannot be analyzed as existing studies mainly dealt with only the supply of ecosystem services. This study compares the demand and supply of ecosystem services in Shiheung using environmental complaints and urban planning by semantic network analysis. As a result, 'air' and 'water' quality are magnified in demand, 'energy' and 'water' are crucial in supply. This result presents that citizen ask for the improvement of air quality in regulation services, although local government has plans for energy support in provisioning services. Periodic ecosystem services demand and supply monitoring will be the base of effective ecosystem services planning, which reduce insufficiency and surplus.

A Study on the Factors of the Environment-friendly Agricultural Product Consumption on the Favorability, Purchase Intention, and Recommendation Intention (친환경농산물 소비에 대한 호감도, 구매의도, 추천의도에 영향을 끼치는 요인 연구)

  • Lee, Cheol-Han;Hwang, Jae-Hyun
    • Korean Journal of Organic Agriculture
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    • v.21 no.2
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    • pp.171-187
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    • 2013
  • The environment-friendly agricultural product market receives consumers' great interests despite relatively few studies focused on consumers' decision making process of the environment-friendly agricultural products. This paper examines what factors influence on consumers' attitude and buying behavior on the environment-friendly agricultural product. In order to find the relative importance of each factor's influence, this study adopts multiple regression method based on the survey results of 500 people with the systematic random sampling. The results showed that consumers' favorable attitude towards the environment-friendly agricultural product were influenced by taste, freshness, food safety, and positive attitudes toward the environment-friendly agricultural product promotion. In addition, consumers' purchase intention was influenced by taste, food safety, environmental concern, and the promotion. Respondents recommend the environment-friendly agricultural product when they believe that the environment-friendly agricultural product had the values of taste, environmental concern, and promotion. Women are more active in buying and recommending the environment-friendly agricultural product; however, the price was not the statistically meaning factor. This study provides empirical data that was used for marketing and increasing the sales of the environment-friendly agricultural product. Future research was advised to examine more thoroughly on the relationships between the promotion efforts and purchase intention and the occasions when the price becomes the issue in the buying decision of the environment-friendly agricultural product.

The Commercialization of Academic Research in the Context of Shifting Intellectual Property Regimes in the Twentieth Century (20세기 대학연구의 상업화와 지적재산권 제도의 변화)

  • Yi, Doogab
    • Korean Journal of Environmental Biology
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    • v.32 no.4
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    • pp.403-412
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    • 2014
  • This article chronicles key shifts in intellectual property regimes in the twentieth century as they related to the commercialization of academic research. The institutionalization and growth of scientific research in the research university in the twentieth century and the increasing awareness of its potential to promote technology innovation and economic growth posited an important question of the ownership of knowledge created in the academic setting, where knowledge was traditionally regarded as a common property among academic researchers. This paper shows the ownership of academic knowledge emerged as a key public policy and legal issue in the latter half of the twentieth century for academic researchers and government officials who pursue the commercialization of academic knowledge for private gain and public benefit. The resulting institutionalization of patent management in the research university and shifts in federal patent policy in turn opened a new legal avenue for the establishment of the private ownership of academic knowledge and the expansion of intellectual property rights in academia, especially in the area of biological and biomedical research. Reflecting upon historical shifts in intellectual property regimes in the twentieth century, this paper suggests recent controversies regarding ownership of biological knowledge and profit sharing in developing counties are linked to critical issues pertinent to the welfare of indigenous population, utilization of new natural resources, and sustainable development for humanity.

Study of Minimalism of Contemporary Furniture Based on Environment-fiendly Aspect (환경 친화적 관점에 기초한 현대 가구의 Minimalism적 고찰)

  • 문선옥;김종만
    • Journal of the Korea Furniture Society
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    • v.13 no.1
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    • pp.71-83
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    • 2002
  • This study was carried out to develop colored-wood furniture using veneer, small-round log and fiberboard to protect forest resources through the study of minimalism. which advocates the environmental issue inherent to contemporary furniture in the postmodern era. Based on the historical and theoretical context of minimalism closely related to the environmental protection, this study suggested the technical way how to produce the environment-friendly furniture with the least use of valuable and natural log. Finally, the color-wooden furniture was developed based on the asceticism, simplification, and repetition of the minimalism in a trend of contemporary furniture design. By soaking a veneer, Psuedotsuga menziesii and small-round log, Pinus densiflora into a very-diluted organic dye, the environment-friendly and colored-wood furniture could be created in harmony with contemporary interior space, which has showed various colors such as yellow, blue, red, and green with a pastel tone. The spring wood of the colored softwood was deeply stained, while the summer wood was lightly done. By utilizing such valueless used woods which have been little in furniture production, it was possible to decrease the consumption of precious raw log such as zelkova, ebony, rose, maple, cherry, mahogany and so on. Thus, it became obvious to be able for contemporary furniture designers to produce beautiful furniture with dyed fiberboard and small-round logs pregnant with minimalism.

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Necessity of Adjustment of the Jurisdiction of Local Governments based on Watershed (유역(流域)을 기초로 한 행정구역경계설정의 필요성)

  • Lee, Won-Young
    • Journal of Environmental Impact Assessment
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    • v.10 no.3
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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.

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Aerodynamic and Flow Characteristics of Tall Buildings with Various Unconventional Configurations

  • Tanaka, Hideyuki;Tamura, Yukio;Ohtake, Kazuo;Nakai, Masayoshi;Kim, Yong Chul;Bandi, Eswara Kumar
    • International Journal of High-Rise Buildings
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    • v.2 no.3
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    • pp.213-228
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    • 2013
  • Tall buildings have been traditionally designed to be symmetric rectangular, triangular or circular in plan, in order to avoid excessive seismic-induced torsional vibrations due to eccentricity, especially in seismic-prone regions like Japan. However, recent tall building design has been released from the spell of compulsory symmetric shape design, and free-style design is increasing. This is mainly due to architects' and structural designers' challenging demands for novel and unconventional expressions. Another important aspect is that rather complicated sectional shapes are basically good with regard to aerodynamic properties for crosswind excitations, which are a key issue in tall-building wind-resistant design. A series of wind tunnel experiments and numerical simulation have been carried out to determine aerodynamic forces and wind pressures acting on tall building models with various configurations: corner cut, setbacks, helical and so on. Dynamic wind-induced response analyses of these models have also been conducted. The results of these experiments have led to comprehensive understanding of the aerodynamic characteristics of tall buildings with various configurations.