• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
• /
• 제23권4호
• /
• pp.17-25
• /
• 2017

Purpose: Since hospitals have a big impact on the natural and social environment, hospitals' sustainability must be considered in various aspects including environmental, social, and economical aspects. So far, research on sustainable hospitals has mainly been conducted on indoor environment, but outdoor space of hospital is as important as well. The purpose of this research is to study the sustainability of hospital outdoor space and to make proposals for improving sustainable regional public hospitals. Methods: Through preceding research analysis and literature review, the concept of sustainable outdoor space of hospital was defined. Also, the evaluation contents of outdoor space were extracted from domestic and foreign green building certification criteria. With this analytic frame, we visited 4 regional public hospitals in Korea, interviewed the facility managers, and analyzed sustainability of hospital outdoor space. Results: Analysis of 4 regional public hospitals reveals that there is a lack of consideration for sustainability in all 4 categories; urban and network, natural environment, community, and user. In terms of community, sustainability has rarely been applied to all four hospitals. The site selection and terrain of the site were essential to sustainability. Implications: Establishing a master plan considering future expansion is critical. Also more attempt to show regional characteristics is needed. It is necessary to design a comprehensive outdoor space that considers sustainability and also healing environment. Level difference in the site can be used as a design element.

• Toxicological Research
• /
• 제28권4호
• /
• pp.241-248
• /
• 2012

Exposure of cells to ultraviolet B (UVB) radiation can induce production of free radicals and reactive oxygen species (ROS), which damage cellular components. In addition, these agents can stimulate the expression of matrix metalloproteinase (MMP) and decrease collagen synthesis in human skin cells. In this study, we examined the anti-photoaging effects of extracts of Tetraselmis suecica (W-TS). W-TS showed the strongest scavenging activity against 2,2-difenyl-1-picrylhydrazyl (DPPH) and peroxyl radicals, followed by superoxide anions from the xanthine/xanthine oxidase system. We observed that the levels of both intracellular ROS and lipid peroxidation significantly increased in UVB-irradiated human skin fibroblast cells. Furthermore, the activities of enzymatic antioxidants (e.g., superoxide dismutase) and the levels of non-enzymatic antioxidants (e.g., glutathione) significantly decreased in cells. However, W-TS pretreatment, at the maximum tested concentration, significantly decreased intracellular ROS and malondialdehyde (MDA) levels, and increased superoxide dismutase and glutathione levels in the cells. At this same concentration, W-TS did not show cytotoxicity. Type 1 procollagen and MMP-1 released were quantified using RT-PCR techniques. The results showed that W-TS protected type 1 procollagen against UVB-induced depletion in fibroblast cells in a dose-dependent manner via inhibition of UVB-induced MMP-1. Taken together, the results of the study suggest that W-TS effectively inhibits UVB-induced photoaging in skin fibroblasts by its strong anti-oxidant ability.

• 디지털융복합연구
• /
• 제19권10호
• /
• pp.75-86
• /
• 2021

최근 국내 BIPV 시장은 "제로에너지 건축물 인증 의무화 제도(2020~)" 도입으로 시장 활성화가 기대되고 있지만, 현행 국내 BIPV 시공 기준 내 정의 내용의 경직성 등으로 인해 다소 답보 상태에 있다. 또한, 국내 BIPV 정의와 표준화 개정이 지체되어 벽에 구조물을 설치하고 모듈을 대충 고정한 것만으로 BIPV라고 인정된 사례가 있을 만큼 제도가 허술한 상태이다. 이로 인해 발생한 피해는 소비자에게 돌아갈 수 있으며 BIPV에 대한 부정적인 인식만 심어주고, 시장 전체를 정체시키는 결과를 불러올 수도 있다. 이에 BIPV 정의 중, 시장 부진 원인, 불합리한 규정 등에 대해 문헌조사, 선행 연구조사(인용) 및 현장사례 조사 등 개정 필요항목들을 사전 검토 및 설문 항목 검토 후, BIPV 분야 산업계 및 연구계 등 전문가를 대상으로 델파이 설문 조사를 거쳐 개정 대안을 분석 마련하고, 전문가 검토 의견 등을 종합 반영 및 보완하여 IEC 국제표준 정의 일부 인용.절충안 등 국내 BIPV 정의 개정방안을 도출하였다.

• Safety and Health at Work
• /
• 제11권4호
• /
• pp.418-424
• /
• 2020

Background: According to the previous studies, the work-related accident rate decreased in Korea after the introduction of occupational health and safety management system (OHSMS), but there were several disasters in Korea such as subway worker's death at Guui station in 2016 and the Taean thermal power plant accident in 2018, which escalated the social demand for safety. In 2018, OHSMS became an international standard, as ISO45001 was announced. Methods: A survey was conducted to research the implementation status of OHSMS and changes in people's perception, and the results were compared with those of a past survey. Results: Enhanced social demand and various stakeholders' (not only buyer) needs, and social responsibility are perceived as the motivation for the introduction of OHSMS rather than legal compliance or customer demand. In the questionnaire about problems with the implementation of OHSMS, the factors with higher response rate in 2018 than 2004 were "excessive cost" and "complicated documentation management." In the questionnaire about how to promote OHSMS in organizations, most people answered "reduction of workers' compensation insurance rate" in 2004, but most people answered "exemption from health and safety supervision" in 2018. Conclusion: For the effective implementation of ISO45001, emphasis is placed on social demand, training to recognize health and safety as a part of management, and the reduction of certification and consulting costs to promote the introduction of OHSMS. Incentives such as insurance premium cuts and exemptions from health and safety supervision are needed.

• 한국산업보건학회지
• /
• 제32권1호
• /
• pp.53-63
• /
• 2022

Objectives: This study was designed to evaluate the filtration efficiency, inhalation resistance, and liquid resistance of commercial reusable masks in comparison to the performance of KF-AD masks (reference masks). Methods: Thirty-six masks were purchased from an online market. Filtration efficiency and inhalation resistance were determined in the same manner as in MFDS certification testing, respectively using TIL/IL & Filter Test 1300S (SFP Services, UK) and Breathing Resistance Analyzer DA2001 (Lambda Ray, South Korea). Results: Most of the filtration efficiencies found for the 19 masks were far lower than the test standard for KF-certified masks. Four masks met KF94 and three masks even met KF80. Most inhalation resistances were also much lower than the standard, with many almost one-half of the standard. In addition, all the masks except KF-AD masks did not pass the liquid resistance test. Conclusions: Although most of the filtration efficiency performance results found in this study for the reusable masks, which emerged as an alternative, were lower than the standard for health masks, multi-use masks can be used with a replacement filter inserted.

• 한국분말재료학회지
• /
• 제29권2호
• /
• pp.159-165
• /
• 2022

Rare earth elements, which are important components of motors, are in high demand and thus constantly get more expensive. This tendency is driven by the growth of the electric vehicle market, as well as environmental issues associated with rare-earth metal manufacturing. TC 298 of the ISO manages standardization in the areas of rare-earth recycling, measurement, and sustainability. Korea, a resource-poor country, is working on international standardization projects that focus on recycling and encouraging the domestic adoption of international standards. ITU-T has previously issued recommendations regarding the recycling of rare-earth metals from e-waste. ISO TC 298 expands on the previous recommendations and standards for promoting the recycling industry. Recycling-related rare earth standards and drafts covered by ISO TC 298, as well as Korea's strategies, are reviewed and discussed in this article.

• 한국의류학회지
• /
• 제47권4호
• /
• pp.625-645
• /
• 2023

This study examined newspaper articles from 2012 to the first quarter of 2021 to explore how interest in and response to veganism have evolved in the fashion and beauty industries over the past decade. By analyzing keywords and word correlations, we discovered a steady increase in veganism-related articles in both English- and Korean-language newspapers published in Korea, especially since 2019. Since 2012, consumer interest in vegan fashion materials has grown, with fashion and beauty emerging in 2018 as significant vegan-related keywords. As a result, brands have adopted vegan certification systems and introduced vegan product lines, and new vegan brands have emerged. Since 2020, companies have been promoting environmental, social, and governance (ESG) management practices and working toward eco-management that reflects vegan trends in all areas, such as cruelty-free product/packaging materials, brands, policies, and services. It is also notable that fashion/beauty consumers have been more actively starting to adopt eco-friendly lifestyles and participate in vegan-related movements since that time. Our findings offer important insights into the evolution of veganism in Korea and can help researchers and industry practitioners to develop future business strategies in the vegan fashion and beauty industries.

• 항공우주시스템공학회지
• /
• 제17권6호
• /
• pp.118-126
• /
• 2023

세계 각국의 항공우주산업체는 SAE AS9100 품질경영시스템을 구축하고, 제3자에 의한 인증을 획득하여 제품 생산에 적용하고 있다. 그렇지만, 항공기에 대한 제작증명, 부품등제작자증명, 기술표준품 형식승인을 받기 위해서는 AS9100과 유사한 감항당국의 품질시스템 평가기준에 따라 법적인 평가를 다시 받아야 한다. 이러한 일부의 중복성을 배제하고, 산업 발전과 환경 변화에 대응할 수 있도록 생산승인 품질시스템 평가기준을 마련할 필요가 있다. 본 연구에서는 국제항공우주품질그룹(IAQG)의 SAE AS9100 품질경영시스템, 미국 연방항공청(FAA)의 생산승인 품질시스템, 우리나라의 항공기 인증시스템 평가 프로그램(ACSEP) 요구조건을 비교 분석하고, 감항당국의 평가기준을 개선하는 방안을 제시하고자 한다.

• Mycobiology
• /
• 제51권4호
• /
• pp.195-209
• /
• 2023

The seed borne disease such as bakanae is difficult to control. Crop yield loss caused by bakanae depending on the regions and varieties grown, ranging from 3.0% to 95.4%. Bakanae is an important disease of rice worldwide and the pathogen was identified as Fusarium fujikuroi Nirenberg (teleomorph: Gibberella fujikuroi Sawada). Currently, four Fusaria (F. fujikuroi, F. proliferatum, F. verticillioides and F. andiyazi) belonging to F. fujikuroi species complex are generally known as the pathogens of bakanae. The infection occurs through both seed and soil-borne transmission. When infection occurs during the heading stage, rice seeds become contaminated. Molecular detection of pathogens of bakanae is important because identification based on morphological and biological characters could lead to incorrect species designation and time-consuming. Seed disinfection has been studied for a long time in Korea for the management of the bakanae disease of rice. As seed disinfectants have been studied to control bakanae, resistance studies to chemicals have been also conducted. Presently biological control and resistant varieties are not widely used. The detection of this pathogen is critical for seed certification and for preventing field infections. In South Korea, bakanae is designated as a regulated pathogen. To provide highly qualified rice seeds to farms, Korea Seed & Variety Service (KSVS) has been producing and distributing certified rice seeds for producing healthy rice in fields. Therefore, the objective of the study is to summarize the recent progress in molecular identification, fungicide resistance, and the management strategy of bakanae.

• 한국건축시공학회지
• /
• 제23권6호
• /
• pp.673-682
• /
• 2023

본 연구에서는 모르타르 조건하에서 초지연제 혼입률, 양생온도 및 강도수준 변화에 따른 응결지연 특성을 고찰하고자 하였으며, 세티메타를 이용하여 공사현장의 다양한 외기조건 및 재료배합 조건하에서 초지연제를 사용한 콘크리트의 응결시간을 효율적으로 추정할 수 있는 객관적 방법을 제시하고자 하였다. 그 결과, 비선형 회귀모델의 추정식 및 세티메타을 이용하여 초지연 모르타르의 응결시간을 추정할 수 있을 것으로 사료되며, 초결은 45 ST, 종결은 80 ST 전후로 관리하는 것이 바람직할 것으로 판단된다. 또한, 이를 통해 초지연 콘크리트의 응결시관과 관련한 효율적인 품질관리가 가능할 것으로 사료된다.