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      • KCI등재

        실 규모 물 처리 공정 및 후속 흡착 처리에 의한 오염원 제거 잠재성 평가

        변해일,여건희,응우옌 홍안,김영웅,김동건,이태훈,정설화,최영화,오승대 한국토지주택공사 토지주택연구원 2024 LHI journal of land, housing, and urban affairs Vol.15 No.1

        본 연구에서는 하이드로사이클론, 응결/응집, 용존공기부상 단일 공정이 결합한 실 규모 물순환 조합공정(HCFD)의 오염 지표수 처리 성능을 평가하였다. 실 규모 물순환 공정은 수질 변동이 큰 유입 원수를 대상으로 안정적인 수처리 효율을 보였으며, 유입수의 주요 수질 지표가 매우 나쁨(BOD, TP, COD) 혹은 약간 나쁨(SS)이었으나, 방류수는 매우 좋음(BOD, SS, TP) 혹은 좋음(COD) 수준으로 향상되었다. 물순환 시스템 방류수의 후속 고도 처리를 위해 활성탄 기반 흡착 공정의 용존성 유기물 및 미량오염물질(잔류의약물질 APAP 및 산업 화학물질 AO7) 처리 잠재성을 평가하였다. 오염원 흡착 특성은 흡착동역학 및 등온 흡착실험과 관련된 모델링 기법을 이용하여 관찰하였다. 실험 결과, 후처리 활성탄 흡착은 잔류 유기물, APAP, AO7 유기물에 대한 높은 오염원 제거 잠재성이 있음이 확인되었으며, 오염원 흡착속도 및 최대 흡착량 값은 유사 2차 반응속도 모델과 Langmuir 등온흡착 모델에 의해 결정되었다. 본 연구 결과, 활성탄 기반 흡착 공정은 기존의 물순환 조합공정과 연계시 수처리 효율을 상호 보완적으로 높이고, 흡착 공정은 전단의 입자 분리 공정으로 제거가 어려운 용존성 오염원의 후속 처리에 대한 높은 잠재성이 있음을 시사한다. This study aimed to assess the efficacy of an adsorption process in removing organic matter and micropollutant residuals. After a full-scale water circulation system, the adsorption process was considered a post-treatment step. The system, treating anthropogenically impacted surface waters, comprises a hydro-cyclone, coagulation, flocculation and dissolved air flotation unit. While the system generally maintained stable and satisfactory effluent quality standards over months, it did not meet the highest standard for organic matter (as determined by chemical oxygen demands). Adsorption experiments utilized two granular activated carbon types, GAC 830 and GCN 830, derived from coal and coconut-shell feedstocks, respectively. The assessment encompassed organic materials along with two notable micropollutants: acetaminophen (APAP) and acid orange 7 (AO7). Adsorption kinetics and isotherm experiments were conducted to determine adsorption rates and maximum adsorption amounts. The quantitative findings derived from pseudo-second-order kinetics and Langmuir isotherm models suggest the effectiveness of the adsorption process. The findings of this study propose the potential of employing the adsorption process as a post-treatment to enhance the treatment of contaminants that are not satisfactorily treated by conventional water circulation systems. This enhancement is crucial for ensuring the sustainability of urban water cycles.

      • KCI등재

        분단과 남.북한 친족법의 변화

        홍안(Moon, Heung-Ahn) 한국가족법학회 2015 가족법연구 Vol.29 No.3

        This paper examines how the family law has been settled and developed since the emancipation from Japanese colonial era throughout the time where South and North Korea maintain as divided. The study flows from introduction of the topic in Part I to actions taken by South and North Korea against division of Korea peninsula in Part II. Then it further investigates main issues and changes in background through the history in Part III until it reaches to a conclusion in Part IV. Family law in South Korea that played a main role to stabilize patriarchal family system in the capitalistic society since the emancipation of Japanese colonial era is currently operated to support the realization of gender equality that is centered on husband and wife by abolishing the patriarchal family system. On the other hand, North Korean law concerning the family issues, where this paper lays special emphasis, has been managed as a special law for the past 70 years since the liberation as it severed from the capitalism while embracing the socialist system. As a result, most of its legal structure and contents from the past have been succeeded as is into North Korea’s modern family law in 1990’s. Socialist political·economic systems that North Korea accepted support nationalization of production methods which in turn requires abolition of private property system. This turned out to lead the collapse of feudal patriarchal family system by directly impacting the family system that stands on the basis of land. Although it is undeniable that of feudal patriarchal family system positive impact on strengthening female rights, each individual including female is just an expendable for socialist revolution led by the political party and leader in North Korea despite of all the efforts to cut off the vicious circle of customs from the feudal age through the legal enforcement such as “Act on Equality in Gender”. Even the regulation of family law for child benefit promotion is also in fact a way of training foster for communist revolution. One of the purposes of the communist revolution is to dissolve the individual’s family. This ironically has accomplished consolidation of family in North Korea as the measures of revolution resulted in gathering of smaller groups for the revolution. The paper explores in depth to study the reasons and seek solution for ongoing issues caused by the remarriage of North Korean refugees as well. If the integration of family law in North Korea is discussed henceforth under the circumstance where it can’t avoid accepting capitalism, the removal of socialistic views and vestiges of self-reliance ideology should be preceded, focusing on the practical functions of the newly integrated family system. There will be a limit for North Korean people to adapt to South Korean system by merely enforcing the letter of the law while leaving what they have been accustomed over the past 70 years behind. This needless to say puts significant importance to broaden the ability to understand theoretical background of North Korean family law and legal terms to increase efficiency toward the actual integration of South and North Korea.

      • 베트남 음식문화의 지역적 특성 - “퍼(phở)"의 기원과 변천 -

        호티홍안 ( Hothi Longan ) 강원대학교 강원문화연구소 2019 강원문화연구 Vol.40 No.-

        퍼(phở)’는 베트남 음식들 중에 가장 대표적인 음식 중의 하나이다. 퍼는 쌀국수의 일종으로 벼농사의 특징을 보여주는 음식으로서 각종 채소와 양념 등의 부재료를 사용하여 다양한 맛으로 즐겨왔다. 본 연구는 베트남 음식 문화에 대한 관심을 제고하는 차원에서 ‘퍼’에 대해 좀 더 치밀하게 접근하고자 한다. 특히 베트남 음식 중 가장 잘 알려져있는 대표적 음식이라 할 수 있는 쌀국수 ‘퍼(phở)’의 다양한 기원과 변형 및 변천 과정을 중심으로 고찰하며 베트남 사회 변화에 따른 베트남 사람들의 삶의 조건 속에서 ‘퍼’가 어떤 변화를 겪어 왔는지 고찰하고자 한다. 퍼는 베트남사람들에게 뿐만 아니라 외국인들에게도 잘 알려져 있는 음식이다. 즉 베트남을 대표하는 음식인 퍼는 세계화 과정에서 해외로 진출하는 베트남 사람들과 함께 해외로 진출하게 되었고 세계인의 사랑을 받아왔다. 또한 한국 내 확산되고 있는 퍼는 한국인들이 즐겨먹는 음식의 한 종류로 확연히 자리를 잡고 있다. 그러나 퍼에 대한 기원 및 변천과정을 살펴보는 학문적 접근은 거의 전무한 상태이다. 따라서 이 연구에서는 베트남 음식의 한 부분으로서의 ‘퍼’를 통해 베트남 음식의 근원과 변천 그리고 세계로의 진출 경로를 추적하고 이에 대해 해석하고 고찰함으로써 베트남 음식문화 연구의 지평을 넓혀 보고자 한다. Phở 'is one of the most representative Vietnamese food. Phở is a type of rice noodle that shows the characteristics of rice farming and has been enjoyed in various flavors by using various vegetables and various spices such as natural spices. The purpose of this study is to approach Vietnamese food culture more closely. In particular, it examines the various origins of the rice noodle Phở which is the most well-known representative foods of Vietnamese, and examines the changes and changes in the process of making changes in the conditions of life of Vietnamese people. I would like to consider whether I have suffered. Phở is well known not only to Vietnamese people but also to foreigners. In other words, Vietnam's representative food, Phở has entered the overseas market according to Vietnamese people in the process of globalization and has been loved by the people of the world. In addition, the Phở spreading in Korea is clearly a kind of food that Koreans enjoy. However, there is almost no academic approach to the origin and process changes of Phở. Therefore, in this study, we would like to expand research Vietnamese cuisine by surveying, analyzing through the study of the Origin and Changes of Vietnamese 'Pho'.

      • KCI등재
      • 병원의 실내 공기 질 솔루션 선택에 영향을 미치는 요인들

        당원홍안 ( Dang Nguyen-hong Anh ),안용한 ( Ahn Yong-han ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.2

        Indoor Air Quality is crucial in hospital projects to ensure the health and safety of patients, staff, and visitors. The research methodology comprises an comprehensive literature review, then a comprehensive questionnaire survey conducted among stakeholders involved in Vietnamese hospital projects. 15 variables were identified and categorized into four distinct groups, elucidating their influence on the adoption of advanced IAQ-enhancing technology. This study uses factor analysis, a mean score method and hypothesis test to analyze the factor result from the survey. two-step process, including an in-depth literature review and questionaire survey. The study's findings culminated in the ranking, examination, and categorization of these 15 variables, which were clustered into four essential categories: economic factors, design elements, governance strategies, and technical requirements. Additionally, the research explored viable solutions to improve indoor air quality in Vietnam's unique environmental context, examining the factors that impact the selection of such solutions. The study's outcomes yield practical recommendations for architects, engineers, and hospital administrators in enhancing IAQ within healthcare facilities. Furthermore, it presents a framework attuned to local environmental factors and building materials, contributing significantly to the existing body of knowledge on IAQ within hospital projects, particularly in the Vietnamese context.

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