• 한국군사과학기술학회지
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• 제13권3호
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• pp.358-364
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• 2010

The necessity for harmonically growing of economy and environment has been on the rise late in the twentieth century. Green transformation is defined as efficiency enhancement of conventional guns and ammunitions. We also define green innovation as evolution of fire power systems breaking with conventional methodology. This kind of green innovation could even change a paradigm of warfare in the future. In this paper, we classify the green technology in the field of fire power into five technological groups, and the research and development trend of green technology in the field of fire power is analyzed.

• 유통과학연구
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• 제22권3호
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• pp.71-81
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• 2024

Purpose: This study examines the impact of inclusive policies and green transformation on regional development of mining areas. Research design, data and methodology: We designed and utilized a structured questionnaire to collect data from a population of 300 individuals. The questionnaire was disseminated through Google Forms and consisted of five questions for each research variable. A total of 210 respondents completed the questionnaire, yielding a response rate of 70%. The sample was diverse in terms of gender and educational level Of the 210 respondents, 113 were female (53.8%) and 97 were male (46.2%). In terms of educational background, the sample was composed as follows: 13 individuals with a Doctorate degree (6.2%), 56 with a Master's degree (26.7%), 97 with a Bachelor's degree (46.2%), 22 with a Diploma (10.5%), and 22 with a High School education (10.5%). Results: The research outcomes highlight the significant influence of inclusive policies on driving the Distribution of green economic transformation. Emphasizing the pivotal role of inclusive distribution strategies, especially within the context of mining areas, the study sheds light on their crucial contribution to fostering regional development. Conclusion: These findings hold valuable implications for policymakers, industry stakeholders, and academics promoting environmentally conscious economic transformations.

• 한국물환경학회지
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• 제40권3호
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• pp.131-139
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• 2024

This study investigated the chemical properties of Organic Soil Amendments (OSAs) made from organic waste. It also assessed the effectiveness of using these OSAs in the soil layer of Green Infrastructure (GI) to reduce stormwater runoff and non-point source pollutants. The goal was to improve the national environmental value through resource recycling and contribute to the circular economy transformation and carbon neutrality of urban GI. The OSAs used in this study consisted of spent coffee grounds and food waste compost. They were found to be nutrient-rich and stable as artificial soils, indicating their potential use in the soil layer of GI facilities. Applying OSAs to bio-retention cells and permeable pavement resulted in a reduction of approximately 11-17% in stormwater runoff and a decrease of about 16-18% in Total Phosphorus (TP) discharge in the target area. Increasing the proportion of food waste compost in the OSAs had a positive impact on reducing stormwater runoff and pollutant emissions. This study highlights the importance of utilizing recycled resources and can serve as a foundation for future research, such as establishing parameters for assessing the effectiveness of GI facilities through experiments. To enable more accurate analysis, it is recommended to conduct studies that consider both the chemical and biological aspects of substance transfer in OSAs.

• 청정기술
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• 제28권3호
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• pp.218-226
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• 2022

최근 선진국들은 수소경제 및 탄소중립 사회로의 전환을 위해 수소에너지의 수요가 급격히 증가하고 있으며, 이산화탄소(CO₂)를 배출이 없는 친환경적인 수소(H₂) 생산 기술에 대한 관심이 높아지고 있다. 본 연구에서는 암모니아(NH₃) 분해 수소 제조를 위해 루테늄 알루미나(Ru/Al₂O₃) 분말 촉매와 함께 알루미나 졸(alumina sol)의 무기바인더(inorganic binder)와 메틸 셀룰로오스(methyl cellulose)의 유기바인더(organic binder)를 사용하여 딥 코팅(dip coating) 방법으로 루테늄 알루미나 메탈 모노리스 코팅 촉매를 제조하였다. 딥 코팅을 위한 촉매 슬러리의 최적 비율로 촉매와 무기바인더의 중량 비율을 1:1로 고정하여 유기바인더 0.1일 때 1회 딥 코팅 시 촉매 코팅양은 61.6 g L^-1이다. 이때 메탈모노리스 표면에 코팅된 촉매 층의 균일한 두께 (약 42 ㎛)와 결정상을 주사전자현미경(Scanning Electron Microscope, SEM)과 X-ray 회절분석(X ray diffraction, XRD)을 통해 확인하였다. 또한, 암모니아 분해 수소 제조의 최적 공정조건을 찾고자 반응표면분석법(Response Surface Method, RSM)을 이용하여 반응온도와 공간속도의 독립변수에 따른 암모니아 전환율에 대한 수치 최적화 회귀식 모델을 계산하였다. 이러한 결과로부터 암모니아 분해 수소생산을 위한 상업적 규모의 공정운전 기본설계 자료로 활용이 가능하다.