• 제목/요약/키워드: resources circulation

검색결과 409건 처리시간 0.027초

수산부산물의 발생·처리 실태 및 산업화 방향 (Directions for Eco-friendly Utilization and Industrialization of Fishery By-products)

  • 김대영;이정삼
    • 수산해양교육연구
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    • 제27권2호
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    • pp.566-575
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    • 2015
  • The study aims to identify the generation and treatment of fishery by-products in Korea and suggests future directions and strategies for their eco-friendly utilization and industrialization. First, the study focuses on the identification of the generation and their treatment in Korea since merely few study were conducted and they did not provide enough information regarding the overall generation and treatment at the national level. According to the estimation, Korea generates 800 thousand to 1,200 thousand tones of fishery by-product every year. The fishery by-products generated at large seafood markets and processing facilities are used or processed as fish meal and feed, but those generated from households and small seafood restaurants are currently treated as food waste. In addition, inadequately treated fishery by-products cause various problems such as spoiling urban landscape, creating odor and incubating pest. After identifying the generation and treatment of fishery by-products, the study suggests directions for the formulation of infrastructure for transition into resource circulation society, minimization of dumped waste and their eco-friendly recycling as resources, diversification of recycled goods and development into a high-value added industry. Finally, the study suggests detailed strategies for the directions such as establishment of legal and institutional foundation, separation of fishery by-products from wastes, development of technology tailored for commercialization, introduction of pilot projects for industrialization and cultivation of social enterprises.

디지털 시대의 도서관 환경 변화와 그 대응 연구 (A Study of the Changing Library Environment and its Preparation in Digital Age)

  • 한상완
    • 한국문헌정보학회지
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    • 제32권2호
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    • pp.97-120
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    • 1998
  • 이 논문은 현대 정보사회에서 그 기능과 역할에 부응하기 위해 디지털화하고 있는 도서관의 사회적 배경과, 이를 둘러싼 정보환경에 대해 이론적으로 그 의미를 되짚어 보기 위한 것이다. 뉴미디어의 대두, 디지털 정보처리기술의 발달, 정보기록매체의 급속한 발전, 전자출판과 같은 정보생산과 정보유통방법의 혁신은 도서관에 관련된 패러다임을 디지털 도서관 쪽으로 이끌어 나가고 있다. 그러나 디지털 도서관의 또 하나의 기반이 인쇄자료형태로 축적된 정보자료라는 사실도 간과해서는 안 된다. 디지털 도서관은 도서관의 새로운 본질이 아니라, 정보의 디지털화와 정보통신 기술의 발전에 의한 결과로서. 도서관의 목표를 성취하기 위한 한 차원 높은 수단이다.

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다중 병렬 분기관을 이용한 압축공기 방파제의 소파효과에 관한 실험적 연구 (Experimental Study on Wave Attenuating Effect of a Pneumatic Breakwater by Using a Multiple Parallel Manifold)

  • 김종욱;신현수
    • 한국해양공학회:학술대회논문집
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    • 한국해양공학회 2004년도 학술대회지
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    • pp.257-262
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    • 2004
  • A series of preliminary model tests are performed to find out the wave attenuating effect of the pneumatic breakwater of environment friendly type, which is a bubble screen generated by releasing compressed air from a submerged multiple parallel manifold Rising bubbles induce vertical current, which produces horizontal currents flowing away from the bubble-screen area in both directions. Near bottom, the corresponding currents flow toward the bubble screen, thus completing the circulation pattern. The surface current moving against the direction of wave propagation causes some attenuation of the waves. It becomes more effective as the relative depth (d/ L) increases (short-period waves in deep water). With the same air-discharge, the multiple parallel manifold can be more effective for the attenuation of longer waves through optimum arrangement of manifold number. installation depth, manifold gap, etc. The pneumatic breakwater will give a wide utilization as a device for protecting harbor facilities and as a simple, mobile breakwater.

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지식정보자원 보존 체계에 관한 연구 (The Study on the Knowledge Resources Archive)

  • 조재인
    • 한국도서관정보학회지
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    • 제35권4호
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    • pp.85-104
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    • 2004
  • 우리나라는 인터넷 기반 커뮤니케이션의 급증, 전자 출판의 확산이라는 급격한 사회적 환경 변화를 겪었다. 또한 정부는 최근 몇 년 동안 각종 정보화 사업에 막대한 예산을 투입하여 국가의 가치있는 지식자산을 디지털화하였다. 그러나 휘발성이 강하여 유실 위험이 높은 디지털 지식정보자원을 국가의 유산으로 장기 보존하기 위해서는 구체적인 대책이 필요 불급한 상황이다. 본 연구는 디지털 지식정보자원을 상업적 지식정보, 제도적 공공지식정보, 기능적 공공지식정보, 재정적 공공지식정보의 4대 영역으로 범주화하고, 개별 영역에 적합한 보존 체계 구축 방향을 제시하였다. 또한 지식정보자원 생산 ·유통 체계의 기능적 흐름을 기반으로 한 보존 모형으로 $\ulcorner$지식 생성$\cdot$유통$\cdot$보존 체계$\lrcorner$를 설계하여, 기존 지식정보자원관리체계의 연장선상에서 보존 체계를 운영할 수 있도록 하였다.

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Tethered Sonde와 Sodar 관측으로 분석한 광양만 지역의 풍환경 특성 (The Properties of Wind Analyzed by Observation of Tethered Sonde and Sodar in Gwangyang Coastal Area)

  • 이화운;박순영;임헌호;김동혁;김민정
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2008년도 춘계학술대회 논문집
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    • pp.324-326
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    • 2008
  • When we urgently need to develop and supply an alternative energy, wind power is growing with much interest because it has relative low cost of power and area of tower. To estimate the wind power resource, it is necessary to make an wind resource map first. On the study of wind resource map in the Korean peninsula, Southern coast was needed to investigate the possibility of developing wind power complex because of good wind resources. In this study, we made a vertical observation to analyze the properties of wind in coastal area. From tethered sonde observation, we knew that synoptic effect had an influence higher in second day than first day. This means local wind circulation is generated on first day but not second day. The local wind made vertical wind shear strong in first day. Also, there was large difference of wind speed between layers at night time by analysis of SODAR observation.

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도시개발 사업 단계별 생태환경계획수립 항목 설정에 관한 연구 (Establishment of Ecological Environment Plan Item on Urban Development Stages)

  • 이은엽;강명수
    • 한국환경복원기술학회지
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    • 제11권4호
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    • pp.12-23
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    • 2008
  • This study has a purpose of setting applicable ecological environment plan items when establishing city development plan. To achieve this purpose, multiple methods of data gathering, documentary surveys, and questionaries research were used in this study. The main findings of this study can be summarized as follows; 1. The appliance of ecological environment plan is appropriate to apply before the establishment of development plan. 2. The items applicable to ecological environment plan establishment step by step is the following. First, it is necessary to prepare the environment improvement plan and ecology restoration on the stage of assigning the area. Second, on the stage of planning development plan, it is required to set the restoration plan of ecological resources and step by step ecological environment plan. Third, on the stage of plan implementation, it is required to set the maintenance guide on ecological environment. 3. The planning items of ecological environment plan are "geographical features and soil", "water resource", "wind resource", "green resource", "circulation of resource", "usage of nature energy" and "habitats", etc. 4. To apply ecological environment plan to the planning of development, it is necessary to specify the clear concepts and specific plan. 5. This study is limited to select generalized planning items and later on, it is necessary to develop detailed planning contents.

치유환경의 행태지원성과 지속가능성 개념에 관한 연구 - 저층 친환경 의료시설 사례 중심으로 - (A Study on the Behavioral Affordance of Healing Environment and Concept of Sustainability - Focused on the Eco-Friendly Low-Rise Medical Facilities -)

  • 전종우;김광호
    • 한국실내디자인학회논문집
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    • 제22권4호
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    • pp.158-166
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    • 2013
  • The purpose of this study is to suggest a direction for eco-friendly healing space design for healthcare facilities in the future. Theoretical review and case study on the concept of sustainable design, spatial expression and behavioral affordance were used as research method. Through these reviews, the 3 elements of the total healing environment -physical, psychological and social- have correspondence with elements of spatial expression; Refuge, Flow, Prospect and Void. And these are related to the eight kinds of Behavioral affordance which are subdivided into WORK&STUDY, REST, CIRCULATION, VISUAL SEQUENCE, SOCIAL EXCHANGE, REFRESHMENT, COMMUNITY and MEDITATION. And the concept of sustainable design consists of 6 principles ; Natural system, People, Place, The cycle of life, Energy & natural resources and Process. Through correlation analysis of behavioral affordance and 6 principles, the result of this study presents that the physical elements of the total healing space was mainly associated with the principles of people, place and the cycle of life. Psychological element was related to principle of natural system, human, place and process. And social element was associated with the principles of human, place and process. According to this analysis, the case study of four low-rise eco-friendly medical facilities was undertaken. Sustainability was evaluated in total healing environmental through this case study.

PHYTOPLANKTON BLOOMING AND OCEANIC CONDITIONS IN THE SEAS AROUND THE SPRATLY ISLANDS

  • Dien, Tran Van;Tang, DanLing;Kawamura, Hiroshi
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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    • pp.529-532
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    • 2006
  • The oceanic currents in the South China Sea (SCS) are strongly influenced by monsoon winds. A review on the SCS currents has indicated that previous studies have pointed out an anticyclonic circulation in the area between the southern Vietnam coast and the Spratly Islands. However, its detail is not understood because of less information of in situ observations. The physical-biological interaction is quite new research area, which has been established and promoted by means of the ocean color remote sensing. Temporal/spatial variability of the phytoplankton activities are well captured by ocean color (OC) -derived Chlorophyll-a images. Combining the OC-Chl-a and the other high-resolution satellite data (e.g., SST images), the biological aspects of oceanographic variation is well described. The blooming phenomena in the area between the southern Vietnam coast and the Spratly islands are further investigated. Change in the wind-system related to the El Nino generates upwelling/SST-cooling in the sea south of the Spratly Islands through the air-sea-land interaction was studied. The seasonal upwelling is also associated with the harmful algal bloom (HAB) off two side of Indochina Peninsula have investigated. The seasonal variation of SCS phytoplankton blooming and related oceanic conditions in Vietnam coast was observed. Ocean color satellite data has effective contribute to study the oceanic condition and phytoplankton blooming in South China Sea.

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대기중 $CO_2$ 증가에 따른 한반도 강수량 변화 (Precipitation Change in Korea due to Atmospheric $CO_2$ Increase)

  • 오재호;홍성길
    • 물과 미래
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    • 제28권3호
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    • pp.143-157
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    • 1995
  • 대기중 $CO_2$ 배증에 따른 한반도 강수량 변화가 3개 GCM(CCC, UI와 GFDL)의 기후변화 실험에 따른 광역적 강수변동 자료로부터 Robinson과 Finkelstein이 제시한 혼합적 방법에 의하여 계산되었다. 계산 결과 도출된 대기중 CO$ 배증에 따라 예상되는 강수량 변화는 다음과 같다. 봄철에 예상되는 강수량 증가는 약 25mm/yr정도이며 여름철과 가을철의 강수량 증가는 50mm/yr를 상회하였다. 그러나 겨울철에는 13mm/yr 감소하였다. 현 강수량에 대한 백분율로 보면 봄철, 여름철과 가을철에 각각 10%, 13%와 24%의 강수량 증가를 보인 반면에 겨울철에는 현재보다 다소 감소할 것이 예상된다.

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2단 혐기성소화조의 슬러지 반송율 변화를 통한 Bio-Gas 생산 증대 (The Improvement of Bio-gas Production through the Change of Sludge-Recycle Ratio with Two-Stage Anaerobic Digestion)

  • 권구호;이태우;정용준;민경석
    • 한국환경과학회지
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    • 제23권6호
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    • pp.1061-1066
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    • 2014
  • This study has cross checked the change of internal sludge-recycle in Anaerobic-Digestion, and researched about not only the improvement of Bio-gas production from the digested sludge but also the efficient method of sludge minimization. Ultimate object of the study is to reduce the amount of sludge by the improved efficiency of contact with the organic-matter and the microbes in Anaerobic-Digestion. The sludge-recycle fluidized sludge layer and raised the activity of the sludge, the optimal sludge-recycle ratio, VS and COD removal ratio were 1,000%, 28.2% and 27.7%, respectively. Through these results of this study, it may be of use to treat waste sludge by the sludge-recycle ratio in terms of minimization and circulation of resources.