• Journal of Korean Home Economics Education Association
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• v.16 no.1
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• pp.63-77
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• 2004

The purpose of this study was to construct an issue-centered discussion instructional model for Home Economics and to determine its effect on middle school students' critical thinking. The research questions were posed as below. 1) The object and content of home economics in the 7th national middle school curricula are analyzed to sort out possible issues. 2) An issue-centered discussion instructional model is constructed to be applicable to middle school home economics class. and a lesson plan is prepared. 3) The effect of the issue-centered discussion instructional model developed in this study on student critical thinking faculty is examined. The findings of this study were as follows : First. seven criteria were selected to determine what types of issues were applicable to home economics lesson. Based on the selected criteria. 41 themes of issues were extracted from the 7th middle school textbooks. and their content validity was verified. Second, an issue-centered discussion instructional model was designed to deal with four themes in eight sessions in the procedure of problem raising, confirming, term defining. tentative alternative selecting, data gathering. discussing/critical approaching. and selecting/concluding. Third, two different third-year classes of K middle school in the city of Busan that consisted of 75 students were respectively selected as an experimental group and a control group, and the experiment was conducted in eight sessions for five weeks to see whether the teaching plan brought any changes to the critical mind of the students. The experimental group exposed to the issue-centered discussion lesson made a significant progress in critical thinking faculty(P＜.05). In particular. that instruction gave a favorable impact on demonstration evaluating(P＜.05). one of the critical thinking subfactors. When the students were asked to assess the issue-centered discussion lesson. most of them viewed it favorably. In the future, more research efforts should be dedicated to enhancing the practical applicability of issue-centered discussion instruction in home economics education. developing good evaluation tools about critical thinking faculty and finding out how discussion instruction could be conducted more efficiently.

• Journal of the Korean Society of Marine Environment & Safety
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• v.19 no.4
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• pp.366-374
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• 2013

Maritime transportation circumstance is changing rapidly in accordance with the increase of cargo volume between countries and increase of marine leisure activities by improvement of quality of life. And the circumstance for ship operation is also changing due to aging of seafarers and increasing of foreign seafarers. To cope with such changes in maritime environment well, it requires higher safety management skills from shipping companies, the main subject in charge of the safety matter. In this paper, we analyzed domestic and foreign similar system, and then applied imitation strategies for introduction of an unific evaluation and management system that was consist of marine accidents, port state control, ISM Code and so on from shipping companies. We defined that the imitation industry and system are converted accident ration of construction industry and traffic safety excellence company of road transportation, and then extracted relevant law, evaluation index, incentive system as a imitation subject. We also proposed scheme that introduction of basis law, and evaluation tool with marine accidents ratio, port state control & ism code result, and incentives such as immunity of safety inspection or reduction of commission for introduction of company's safety management level evaluation system. Finally, we proposed the imitation timing and plan in stages for system's sustainable development through the prompt introduction and continuous enforcement.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.12 no.3
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• pp.191-198
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• 2014

Using results of groundwater flow system modeling for a hypothetical deep geological repository site, a distribution of groundwater flow rates at the disposal depth was analyzed and a method of applying this distribution to a safety assessment for a disposal of radioactive wastes was suggested. The distribution of groundwater flow rates was produced by hydraulic heads simulated from regional and local scale groundwater flow models for the hypothetical disposal site. The flow rates at the locations where deposition holes would be located were estimated. These rates were normalized by the maximum of the flow rates in order to probabilistically illustrate a possibility of canister failures at the deposition holes. From the normalized distribution, probabilistic expectations for mass discharges of radionuclides released from the canisters assumed to be failed were calculated and compared with those deterministically estimated under the assumption that the canisters at the same deposition holes were definitely failed. The suggested method can be contributed to constructing a methodology for safety assessment of a geological repository by reflecting natural conditions of a disposal site in more detail.

• Journal of Wetlands Research
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• v.21 no.spc
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• pp.149-156
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• 2019

Assessing the hydrological safety of existing dams against climate change and providing appropriate adaptation measures are important in terms of sustainable water supply and management. Korean major dams ensure their safety through periodic inspections and maintenance according to 'Special Act on the safety control and maintenance of establishments'. Especially when performing a full safety examination, principal engineer must assess the hydrological safety and prepare for potential risks. This study employed future probable maximum precipitation (PMP) estimated using outputs of regional climate models based on RCP4.5 and RCP8.5 greenhouse-gas emission scenarios to assess climate change impact on existing dam's future hydrological safety. The analysis period was selected from 2011 to 2040, from 2041 to 2070, and from 2071 to 2100. Evaluating the potential risk based on the future probable maximum flood (PMF) for four major dams (A, B, C, I) showed that climate change could induce increasing the overflow risk on three dams (A, B, I), although there are small differences depending on the RCP scenarios and the analysis periods. Our results suggested that dam managers should consider both non-structural measures and structural measures to adapt to the expected climate change.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.37 no.3
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• pp.629-636
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• 2017

Urban railway are the most widely used means of transportation in the metropolitan area. It is difficult to draw out problems through the quantitative analysis technique because most of the research results show that most of the guide signs are installed with many or few guide signs. In this study, we propose a method to evaluate the information load and proper installation location at the main decision point in the transfer passageway for Suseo Station by applying Positive Guidance. As a result of analyzing the information load using this technique, it is suggested that the necessary information should be provided centered on the copper node because it provides confusion of the users by providing the same information in the transfer line. It is necessary to obtain guidance on how to remove the sign (advertising, high ceilings, etc). The study will be regarded as a key for the basis and placement of the guidelines for determining the appropriateness of the in the future urban railway station sign guide.

• Journal of the Korea Organic Resources Recycling Association
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• v.21 no.4
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• pp.88-100
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• 2013

This study evaluated the direct and indirect environmental impacts of various unit operations of a industrial waste incineration plant by using the life cycle assessment tool and reviewed the improvement plan. During the incineration process, the direct environmental impact was decreased with decrease in emission of various air pollutants by incorporating an air pollution prevention facilities. However, an increase in indirect environmental impacts was observed as a consequence of resources and energy of consumption at the various operational facilities. Consequently, quantitative direct and indirect impact were 89.1%, 10.9%, respectively. The environmental impact analysis of system revealed the highest impact of incineration followed by the impacts of other unit processes such as semidry reactor, and bag-filter. The various air pollutants and ashes generated during the incineration process caused the most significant environmental impact. Among the various categories of environmental impact, global warming accounted the highest impact(more than 85%) followed by eutrophication, and abiotic depletion. As a result of the avoided impact by the utilization of heat generated during the waste incineration process, using an incineration heat for steam and electricity obtained the impact reduction of 45.5%, 19.8%. So, during siting of new incineration plant, the utilization of steam generated from the waste combustion is highly considered to reduce the environmental impact.

• Journal of the Korean Institute of Landscape Architecture
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• v.40 no.6
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• pp.1-12
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• 2012

This study aims to suggest ways to improve sustainability on housing complexes. This study sampled eight housing projects in Seoul and GyeongGi-Do in Korea, which were completed in June 2007 and June 2008. Then, are retention and maintenance on "constructed greens for ecological environment" including "green structures substitutes retaining walls", "green roofs", and "green walls." Study methods are field investigations of the sampled sites, and Post Occupancy Analysis. Major findings were; 1) "constructed greens" are not well retained in more sites and and this implies the GBCS(Green Building Certification System) does not meet its objectives well, 2) User showed lower user satisfaction to "constructed greens". User satisfaction concerning "green structures substitute retaining walls" was higher than the satisfaction on the other constructed green type. Satisfaction Assessment Criteria lower 1han average were "level of quality", "meet the design objectives", "vegetation management status", "vegetation maintenance". 3) User satisfaction was strongly correlated on the level of quality factor of "constructed green". In addition, tue other factors are the significant correlations between the satisfactions. The present GBCS has inadequate assessment standards for maintenance, which lead to lower the entire satisfaction. Therefore, periodic recertification system, education and information providing for the managing personals, and incentives for good maintenance or disincentive for poor maintenance of the "constructed greens" are suggested to improve the GBCS.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.435-435
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• 2018

하천은 다양하게 분류되고 다양한 식물, 동물, 어류 등이 살아가고 있는 서식처이다. 이러한 하천의 환경 상태를 판단하고 진단하기 위해 올바르게 하천을 평가할 방법이 필요하다. 국내에서는 1910년대부터 1940년대 중반까지의 하천사업은 수력발전을 위한 대규모 댐 개발과 평야지대 관개를 위한 저수지 축조 등 이수사업에 치중하였다. 이후 1960년대부터 1970년대에는 도시와 공단의 개발, 교통, 수자원, 상하수도, 전력 등 사회간접자본의 집중적인 개발을 하였다. 여기서 하천에 초점을 맞추면 하천변의 치수를 위한 하천개수 사업, 그리고 도시화에 따른 도시 소하천의 복개를 들 수 있다. 그러나 이러한 도시화와 산업화는 하천의 오염과 함께 하천의 인공화라는 바람직하지 못한 결과를 가져왔다. 대부분의 도시하천은 직선화되고 높은 콘크리트제방과 콘크리트호안공, 무분별한 하천변의 개발 등으로 인한 황폐화되고 더 이상 하천을 이용할 수 없게 되었다. 국내 하천의 건강성을 평가하기 위한 수많은 하천평가방법들이 연구되었다. 대표적으로 '우리나라 중소하천 코리도의 자연성 평가기법 연구'(조용현, 1997), 생태환경복원을 위한 하천자연도평가 기준에 과한 연구(김동찬 박익수, 1999), 수생태계 건강성 조사 및 평가의 서식수변환경 평가(환경부, 2008) 등이 연구되어 왔으며, 몇몇 평가방법들은 많은 프로젝트에 사용되어 국내 하천의 자연성을 보여주고 있다. 많은 평가방법은 각각의 평가방법과 평가기준을 가지고 하천을 평가하고 있다. 하지만 이 많은 평가방법들의 평가기준, 평가결과 가 하천환경의 상태를 파악하고 진단할 수 있는지에 대한 연구가 전무한 상태이다. 우리나라에서 자연도 평가에 대해 연구를 시작한 것은 90년대 이후였다. 지금까지는 많은 연구와 프로젝트가 진행되어 왔지만 다양한 평가방법들에 대한 비교연구가 없었다. 다기능 하천실험사업(한국건설기술연구원, 2007, 2008)에서 LAWA를 이용해 하천의 물리적 평가를 하고 물리적 구조항목간의 상관분석, 저서성 대형 무척추 동물과 하천 물리적 구조의 상관분석, 식물과 하천 물리적 구조의 상관분석을 실시한 적은 있지만 서로 다른 하천의 물리적 평가방법을 가지고 비교연구를 실시한 적은 없다. 때문에 국내 하천의 물리적 평가 중 어떤 방법이 국내 하천의 현황을 잘 판단하고 있는지, 객관적으로 평가하는지, 복원계획을 수립할 때 효과적인 복원방안을 제시하는지 연구할 필요가 있다. 본 연구는 국내 하천 자연도 평가 방법을 살펴보고 평가항목의 적합성을 도출하고자 하였으며, 하천 자연도 평가항목의 중요도를 선정하여 하천 실무자들이 간편하게 사용할 수 있는 실용적인 방법을 제시하고자 하였다.

• Journal of Korea Technology Innovation Society
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• v.2 no.2
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• pp.219-232
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• 1999

연구개발 지원산업은 연구개발 활동을 직·간접적으로 지원하는 산업을 의미한다. 이러한 산업에 대한 개념화는 연구개발 활동의 전문화(professionalization), 분업화(division of labor)가 진행되고 있음을 의미하는 동시에 연구개발체제의 유연성 제고 및 고도화, 효율화가 이루어지고 있음을 나타내고 있다. 우리의 경우 (과학기술혁신을 위한 특별법) 제 15조 등을 통하여 연구개발 지원사업에 대한 특별지원제도의 시행을 명시하고 있으나 현재까지 연구개발 지원사업자를 지정·육성하기 위한 기본현황 파악이나 분석이 이루어지지 않은 실정이다. 본고는 이러한 수요를 반영하여 국내에서의 연구개발 지원산업에 대한 수요를 중심으로 실태를 파악 ·분석하는 동시에 산업지원 육성방안을 제시하고 있다. 국내 연구개발 지원산업의 규모를 추정해 보면 97년 현재 약 3,000억원에서 4,000억원의 규모로 나타나며, 이중 기술정보서비스업이 약 27.0%, 연구장비 및 시험 ·평가 ·검색 ·분석업이 약 38.4%, 연구개발 설계·자문업 등 기타사업이 34.6% 로 나타나고 있다. 연구개발지원 기능은 시험·검사 기능과 기술정보제공 기능이 대부분을 차지하고 있고, 전자의 경우는 내부처리의 비중이 높고 후자의 경우 외부의 전문기관을 이용하는 비중이 높게 나타나고 있다. 특히 기업이 연구개발활동 수행시에 필요한 지원기능을 외부에 위탁할 경우에 느끼는 애로사항은 첫째, 외부 전문위탁기관의 부족 및 정보 미흡이 가장 크고, 둘째, 전문기관의 해외정보력·경쟁력 부족이 다음이며, 공공기관의 지원기능이 미흡하다는 애로사항에 대한 비중이 상대적으로 낮게 나타나고 있다. 연구개발 지원산업을 특별지원·육성하기 위한 기본관점은 특별법의 시행령을 구체적으로 실행하기 위한 시행계획의 수립과 연구개발 지원산업의 육성 시책의 추진 절차의 결정, 사업자 선정, 지원 사항 등으로 제시될 수 있다. 먼저, 기업 연구개발활동의 고도화·효율화를 위해 연구개발 및 기술개량에 필요한 업무 중 기술정보서비스와 연구시험·평가·검사·분석 그리고 중소기업 기술집약화를 지원하는 사업 등을 연구개발 지원산업으로 범위를 정할 필요성이 있다. 다음으로 연구개발 지원사업자를 별도로 선정·인정하는 방식으로 지원해야 할 필요성이 있다. 기존의 산업 지원방식으로는 연구개발 지원기능이 주된 활동으로 인정받을 수 없으므로 국내 연구개발 지원기능의 발전에 한계가 있다. 따라서 취약한 여건을 감안하여 연구개발 지원산업을 육성하지 않게 되면, 각 분야별로 민간사업자의 참여가 거의 이루어지지 않거나, 참여해도 연구개발 지원 기능의 발전보다는 기존의 사업이 주가 될 가능성이 크다. 연구개발 지원 사업자의 지정 지원방식과는 별도로 이루어질 수 있는 지원활동에 대한 지원은 기업회계처리상의 문제와 일관성이 있는 시책추진 및 효과를 기대하기 어렵기 때문에 사전에 동산업의 참여 자격·능력을 갖춘 사업자에 대해서는 제한없이 참여할 수 있도록 Positive System으로 추진해야 할 것이다. 그리고 연구개발 지원사업자에 대한 지원내용을 조세·금융 등 직접적 지원과 타 제도와의 연계지원 그리고 정부구매 등 시장지원 등이 아울러 다양하게 추진될 필요가 있다.

• Journal of Environmental Impact Assessment
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• v.28 no.3
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• pp.215-230
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• 2019

The objective of this research is to evaluate the water quality characteristics using the statistical analysis of major tributaries in the Han River and to provide water quality improvement plan by selecting tributaries that should be preferentially managed by river grade classification method. The major 15 tributaries in Han River watershed were monitored for discharge and water quality during January-December 2017. As a result of the correlation analysis, the river discharge has been not correlation with other water quality constituents (p>0.05) but COD and TOC were significantly correlated (r=0.957, p<0.01). The main cause of water quality fluctuation was organic pollutants and nutrients in the principal component analysis (PCA) method. The BOD, COD, TOC, TN, and TP were found to be significantly different (p<0.05) by seasonal in result of one-way ANOVA analysis. Result of river grade classification by quantitative indicators the tributaries requiring improvement of water quality were Gulpocheon, Anyangcheon, Wangsukcheon, and Tancheon which affected by wastewater treatment plant.In this research, we determined tributaries that need to improve the water quality of Han River watershed and it can be used as an important data for efficient water quality management.