본 연구는 국내 화훼 장식 종사자와 소비자를 대상으로 일반 플로랄폼과 친환경 플로랄폼에 대한 인지도, 이용 현황, 인식 및 행동 의도, 프리미엄 가격 수용성을 비교 분석하여 지속 가능 한 화훼 산업으로의 전환 가능성을 탐색하였다. 총 430명(화훼 장식 종사자 208명, 소비자 222명)을 대상으로 실시한 설문 조사 결과, 일반 플로랄폼에 대한 인지도는 종사자 99%, 소비자 91%로 높았으며, 이용 경험도 각각 92%, 84%였다. 반면 친환 경 플로랄폼의 인지도는 종사자(64%)보다 소비자(17%)가 낮았 으며, 이용 경험은 각각 26%, 10%에 불과하였다. 일반 플로랄 폼에 대하여 종사자는 익숙한 방식(4.13, Likert 5점 척도)을 가장 긍정적으로 평가하였으며, 사용의 편리성에 대해서도 종사 자(4.05)와 소비자(4.00) 모두 긍정적으로 인식하였다. 친환경 플로랄폼에 대해서는 두 집단 모두 환경 보호에 기여(종사자 4.28, 소비자 4.61)를 가장 긍정적으로 인식하였으나, 높은 가 격 부담은 종사자(4.20)와 소비자(3.88) 모두에게 공통적으로 나타난 부정적 인식이었다. 현재 시중에서 사용되는 일반 플로 랄폼은 페놀-포름알데히드 기반 제품(phenol-formaldehyde floral foam, PFF)으로, 종사자(4.32)와 소비자(4.23) 모두 PFF의 환경 유해성에 대해 높게 인식하였다. PFF를 대체할 친 환경 제품에 대한 사용 및 구매 의향은 종사자(4.16)와 소비자 (4.33) 모두 높게 나타났다. 친환경 플로랄폼의 프리미엄 가격 수용성은 소비자(67%)가 종사자(43%)보다 높았으나, 실제 추 가 지불·인상률에서는 소비자의 81%가 5% 이하를 선택한 반 면, 종사자의 51%는 10% 이상 인상을 선택하였다. 본 연구 결과는 친환경 플로랄폼 사용 확산을 위해 국내 화훼 장식 종사 자와 소비자를 대상으로 한 인식 제고 교육과 홍보의 필요성을 제시하며, 지속 가능한 화훼 산업으로의 전환을 위한 기초 자료 로 활용될 수 있을 것이다.

This study examine differences in consumers’ knowledge of environmentally sustainable materials based on prior purchase experience with eco-friendly fashion products. Furthermore, it explores how this experience relates to variations in attitudes toward eco-friendly products, subjective norms, and purchase intention. For this study, an online survey was conducted using quota sampling based on gender and age group (20, 30, 40s). The collected data were analyzed using descriptive statistics and t-tests. Among the respondents, 221 had prior experience purchasing eco-friendly fashion products (i.e., purchasers), while 192 did not (i.e., non-purchasers). In results, purchasers demonstrated significantly greater awareness that products made from organic cashmere, organic hemp, recycled polyester, recycled nylon, recycled cotton, alternative leather, alternative fur, zero-waste materials, and biodegradable materials qualify as environmentally friendly. However, organic cotton was widely recognized as environmentally friendly by both groups, resulting in no significant difference in purchase intention for this material. Additionally, purchasers prioritized material composition, production methods, and environmental impact more than non-purchasers when deciding to purchase eco-friendly. Purchasers also exhibited more favorable attitudes, higher subjective norms, and stronger purchase intentions toward eco-friendly fashion products than did non-purchasers. These findings offer valuable insights for developing targeted educational and marketing strategies for eco-friendly fashion products, tailored to consumers’ varying levels of purchase experience and environmental awareness.

This study investigates changes in consumer perceptions of eco-friendly fashion using big data analysis and derives strategic directions based on the frequency of related keywords. Data were collected on "eco-friendly fashion" from blogs, online communities, and web documents on portal sites (Naver, Daum, and Google) and analyzed using text mining and Ucinet6 across the pre-pandemic (2017–2019), mid-pandemic (2020–2022), and post-pandemic (2023–2025) phases. The seven most frequent keywords—“eco-friendly,” “fashion,” “brand,” “product,” “material,” “clothing,” and “production”—remained consistently within the top ten across all phases. In Phase 2, new keywords such as “mask,” “fabric,” “upcycling,” and “certification” emerged, reflecting pandemic and sustainability-related concerns, while the terms “protection,” “value,” “ethics,” “Patagonia,” and “practice” emerged in Phase 3, emphasizing ethical and practical engagement in sustainability. The keywords whose rankings changed—"sustainability" and "recycling"—appeared more frequently than before COVID-19 pandemic, and the rankings of "sustainability," "environment," and "utilization" continued to rise. This can be interpreted as a heightened awareness of the importance of using sustainable materials and protecting the environment. CONCOR cluster analysis identified four key categories in each period: (1) interest in and campaigns for eco-friendly fashion Phase 1, (2) sustainable materials and certification trends Phase 2, and (3) technology, ethical consumption, and upcycling practices Phase 3. Overall, the findings suggest that consumer awareness and engagement in eco-friendly and sustainable fashion have significantly increased, with the industry shifting toward ethical and practical sustainability practices.

In this study, We aim to provide design data for a low-temperature refrigeration system to select operating conditions for predicting maximum performance of an eco-friendly binary refrigeration system based on changing operating conditions The operating variables considered in this paper are evaporating temperature, condensing temperature, superheating degree, subcooling degree, and compression efficiency. The main results are summarized as follows: In the low temperature range of -50℃ to -30℃, the COP of the system increased as the evaporating temperature and subcooling degree of the binary refrigeration system for R744-R717 increased, but the COP decreased as the condensing temperature and superheating degree increased. It was confirmed that factors such as superheating, subcooling, condensing temperature, evaporating temperature, cascade temperature difference, and compression efficiency affect the performance coefficient of the binary refrigeration cycle for R744 and R717, and it was found that each of these factors has a cascade evaporating temperature that maximizes the performance of the binary refrigeration cycle.

본 연구는 20·30대 MZ세대의 친환경 행동의도에 영향을 미치는 환경 동기요인을 실증적으로 분석하고, 기후변화 심각성 인식이 이들 동기와 친환경 행동의도 간에 매개효과를 갖는지 실증적으로 분석하는데 목적이 있다. 2024년 국민환경의식조사에 참여한 968명의 청년층을 대상으로, 환경 동기요인(규범적, 쾌락적, 이익, 이타적, 생태적, 이기적 동기)과 기 후변화 심각성인식, 친환경 행동의도 간의 관계를 PROCESS Macro 4.2 를 활용해 분석하였다. 분석 결과는 다음과 같다. 첫째, 규범적 동기가 친환경 행동의도에 가장 큰 영향을 미쳤으며, 쾌락적 동기 역시 유의미 한 영향을 보였다. 둘째, 이익 동기와 이타적 동기는 친환경 행동의도에 직접효과만 있었고, 기후변화 심각성 인식을 통한 간접효과는 없는 것으 로 나타났다. 셋째, 생태적 동기와 이기적 동기는 기후변화 심각성 인식 을 매개로 한 간접효과만 나타났다. 이러한 결과는 MZ세대의 친환경 행 동을 촉진하기 위해 규범적·쾌락적 동기 강화와 기후변화 심각성 인식 제고가 중요함을 시사한다.

Silver nanoparticles (AgNPs) are promising photocatalysts with a broad light absorption range and high catalytic activity. However, conventional synthesis methods often involve toxic chemicals, limiting their environmental applicability. In this study, we developed an eco-friendly bio-templating method to synthesize hierarchical micro/nano-structured silver (MNAg) photocatalysts that uses plant leaves, including Nelumbo nucifera (lotus leaf), Rosa sp. (rose petal), and Limonium sinuatum (statice petal), as natural templates. By modifying the leaf surfaces with citrate functional groups, AgNPs were selectively formed along the microstructures of the templates, preserving their hierarchical morphology. MNAg photocatalysts were subsequently obtained through controlled calcination, and successfully retained the microscale structure of the original template. The surface morphology, chemical composition and crystalline structure of the MNAg were characterized using scanning electron microscopy (SEM), field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), and X-ray diffraction (XRD), confirming the successful formation of hierarchical AgNPs. The optical behavior of the MNAg, characterized with diffuse reflectance spectroscopy (DRS), demonstrated broadened absorption across the visible region, which is attributed to plasmonic coupling among the densely packed AgNPs, partially interconnected along the hierarchical surface. The photocatalytic performance of the MNAg materials was evaluated for methylene blue degradation under UV-Vis illumination. The MNAg derived from lotus leaves exhibited the highest photocatalytic efficiency. This study presents a sustainable route to hierarchical Ag photocatalysts, highlighting the potential of bio-inspired nanomaterials for environmental applications.

This study presents the implementation of a direct power control (DPC) system based on virtual flux for an eco-friendly ship utilizing a low voltage DC distribution within a Simulink environment. The proposed system regulates the DC bus voltage and the instantaneous power of the generator. The electrical load of the generator is classified into three levels (low, medium, and high) and subjected to ±10% variations. Under these conditions, the characteristics of the DC bus voltage and current, instantaneous active and reactive power as well as the voltage and current of the generator, are thoroughly analyzed. The simulation results indicate that the DC bus voltage and instantaneous active and reactive power remain stable and well-regulated at their set-points despite load fluctuations. Furthermore, the voltage and current of the generator, consistently maintain sinusoidal waveforms and remain in phase. These findings validate the effectiveness of the proposed virtual flux-based direct power control strategy, demonstrating its suitability for DC distribution applications in maritime vessels.

As product packaging becomes an increasingly important tool for conveying brand images to consumers, eco-friendly packaging (EFP) is being extensively adopted by fashion companies. Given this trend, the need for research examining consumer responses to fashion products featuring EFP has increased. This study investigates the effects of attitude and subjective norms on consumers’ purchase intention of fashion products using EFP, and further explores the moderating roles of gender and ethical self-identity (ESI). A survey including 360 male and female consumers in their 20s and 30s was conducted, and the data were analyzed using multiple regression analysis. The results indicate that both attitude and subjective norms positively influence purchase intention. Gender moderated the relationship between subjective norms and purchase intention, with males exhibiting higher purchase intention than females when influenced by social norms. ESI also moderated the relationship between attitude and purchase intention, as well as between subjective norms and purchase intention. Individuals exhibiting higher levels of ESI showed stronger alignment between their attitudes or perceived norms and their purchase intention of EFP products. These findings provide valuable insights and establish a foundational understanding of the key determinants of purchase intention for fashion products with EFP. Furthermore, they provide theoretical insights into sustainable consumer behavior and offer practical implications for fashion marketers seeking to promote eco-conscious consumption.

해양오염사고가 발생하면 해양경찰청에서는 긴급방제에 관한 전략 수립을 위해 유출유 확산 예측모델을 구동한다. 이러한 유출유 확산예측모델은 바람, 해류, 조류 등 해양기상을 기반으로 해상에서 유출유 이동방향과 소멸시간 등을 예측하며, 그 결과를 기 반으로 해양경찰청에서는 방제전략을 수립하고 필요한 방제자원을 동원한다. 이뿐만 아니라 유출유 확산예측모델은 해양경찰청의 해 양환경에 관한 다양한 법률 분야와 연계된 형사법 작용의 기술적 근거를 제공한다. 우선 행정법적 측면에서 해양경찰청이 방제의무자 에게 이행하도록 하는 권력적 행정행위로서의 방제명령 등에 대한 비례성 원칙에 부합하는지를 확인할 수 있고, 이는 행정의무 미이행 에 대한 형사법 작용의 전제 요건이 될 수 있다. 그리고 국제법적 측면에서 관할해역 이원에서 발생한 오염에 대해 국가의 개입여부를 판단할 수 있는 근거를 제공하고, 이는 형사관할권에 대한 판단에 있어 기술적 자료가 될 수 있다. 더불어 형사법적 측면에서는 예측 모델은 해양오염과 유출원 사이의 인과관계를 증명하는 방법으로 활용할 수도 있다. 그리고 기후위기로 친환경선박이 도입되고, 이에 따라 해양오염사고는 인명과 환경에 함께 피해를 주는 복합사고 형태로 변화할 것이다. 이에 따라서 기술적 측면에서 기존 해상에서의 유출유 예측모델은 대기ㆍ해양ㆍ수중에 대한 통합모델로 전환되어야 한다. 그리고 제도적 측면에서 친환경선박의 위험 연료에 대한 관리의무 규정을 마련하여야 하고, 의무이행을 위한 형사정책적 측면에서는 위험연료 유출로 해양환경 위해가 있는 경우에 형사벌 대 상이 될 수 있다. 여기서 통합모델은 환경ㆍ안전이 관한 보호법익 침해를 증명하는 과학적 증거로 활용할 수 있다.