• Title/Summary/Keyword: complex ecosystem

검색결과 223건 처리시간 0.027초

공동주택단지에서의 빗물저수조 설치 및 활용방안 연구 (A study on the application and construction of a rainwater storage tank in apartment complex)

  • 이원열;정상민;신덕;이철현;한무영
    • 한국건축시공학회지
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    • 제5권4호
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    • pp.165-171
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    • 2005
  • Nowadays, a source of all water, which has been spent by a lot of people, is the rainwater The rainwater is directly relating human being' life. According to how to use rainwater. human being' life is abundant or poor. Due to the lack of underground filtration quantity, the water circulation of the city is discontinued and the underground ecosystem is destroyed. This study suggest that the unused underground space of building and temporary structure can be used into rainwater storage tank in the facility to use rainwater. Moreover, in this study, while the building is constructed, It is showed that the water used in construction can be replaced in the rainwater.

주거단지의 친환경적 우수처리 실태에 관한 연구 -베를린의 현행 계획 및 사례를 중심으로- (A Study on the Management of Precipitation for the Environmental Friendly Housing Complex -focused on the Contemporary Planning and Example Performed by Berlin-)

  • 이태구
    • 한국주거학회논문집
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    • 제11권2호
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    • pp.117-127
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    • 2000
  • As urbanization proceeds and therefore impervious surface coverage increases, the amount of runoff goes up and the hydrological cycle is also changed. The surface retention and interception of precipitation in the urban area are reduced because the surface area is now slick and solid. Increasing runoff in building areas of the city causes flood damage, water pollution, reduction of ground water recharge, and the other environmental problems. This paper investigates various techniques of increasing rates in a site development performed by Berlin. The techniques offered in this paper improve sit water balance, and thus keep the site ecosystem much healthier.

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Roles of Fungal Volatiles from Perspective of Distinct Lifestyles in Filamentous Fungi

  • Farh, Mohamed El-Agamy;Jeon, Junhyun
    • The Plant Pathology Journal
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    • 제36권3호
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    • pp.193-203
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    • 2020
  • Volatile compounds (VOCs) are not only media for communication within a species but also effective tools for sender to manipulate behavior and physiology of receiver species. Although the influence of VOCs on the interactions among organisms is evident, types of VOCs and specific mechanisms through which VOCs work during such interactions are only beginning to become clear. Here, we review the fungal volatile compounds (FVOCs) and their impacts on different recipient organisms from perspective of distinct lifestyles of the filamentous fungi. Particularly, we discuss the possibility that different lifestyles are intimately associated with an ability to produce a repertoire of FVOCs in fungi. The FVOCs discussed here have been identified and analyzed as relevant signals under a range of experimental settings. However, mechanistic insight into how specific interactions are mediated by such FVOCs at the molecular levels, amidst complex community of microbes and plants, requires further testing. Experimental designs and advanced technologies that attempt to address this question will facilitate our understanding and applications of FVOCs to agriculture and ecosystem management.

The Sediment-Water Interface Increment due to the Complex Burrows of Macrofauna in a Tidal Flat

  • Koo, Bon-Joo;Kwon, Kae-Kyoung;Hyun, Jung-Ho
    • Ocean Science Journal
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    • 제40권4호
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    • pp.221-227
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    • 2005
  • The architecture of macrofaunal burrows and the total area of the sediment-water interface created by biogenic structure were investigated in the Donggeomdo tidal flat on the west coast of Korea. Resin casting methods were applied to recover burrows of four dominant species, Macrophthalmus japonicus, Cleistostoma dilatatum, Perinereis aibuhitensis, and Periserrula leucophryna, and whole burrows within the casting area at three sites in different tidal levels. P. leucophryna excavated the largest burrow in terms of a surface area among them. In the case of whole burrow casting, the space occupied by the biogenic structure was extended into deeper and expanded more greatly at the higher tidal level. In the uppermost flat, the burrow wall surface area within sediment was more extensive than the sediment surface area. Increased oxygen supply through the extended interface could enhance the degradation rates of organic carbon and also change the pathways of degradation. Quantifying the relationship between the extended interface and mineralization rate and pathway requires more extensive study.

Conversion Vertical Platform: Changdong·Sanggye Start-Up and Culture Industry Complex

  • Do Yong Um
    • 국제초고층학회논문집
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    • 제12권3호
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    • pp.263-272
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    • 2023
  • Role of architecture should not be limited to function of providing an inhabitable space but also include urban and social role of its impact to the public and surrounding area. Role of landmark building should be further expanded beyond and landmark building speaks out its aesthetics with mass form and/or with its appearance of façade. With study of this project, idea of landmark building is shifted from vertical extrusion of the land to horizontal extrusion of large space from the face of building. It is a double extrusion creating large assembly space up in the air linking surrounding masses.

Microbial Modulation in Inflammatory Bowel Diseases

  • Jongwook Yu;Jae Hee Cheon
    • IMMUNE NETWORK
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    • 제22권6호
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    • pp.44.1-44.28
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    • 2022
  • Gut dysbiosis is one of prominent features in inflammatory bowel diseases (IBDs) which are of an unknown etiology. Although the cause-and-effect relationship between IBD and gut dysbiosis remains to be elucidated, one area of research has focused on the management of IBD by modulating and correcting gut dysbiosis. The use of antibiotics, probiotics either with or without prebiotics, and fecal microbiota transplantation from healthy donors are representative methods for modulating the intestinal microbiota ecosystem. The gut microbiota is not a simple assembly of bacteria, fungi, and viruses, but a complex organ-like community system composed of numerous kinds of microorganisms. Thus, studies on specific changes in the gut microbiota depending on which treatment option is applied are very limited. Here, we review previous studies on microbial modulation as a therapeutic option for IBD and its significance in the pathogenesis of IBD.

시스템 가시성평가를 위한 유니버설미들웨어기반 Pervasive Memorial Engine 연구 (System Visibility of Universal Middleware Pervasive Memorial Engine)

  • 이해준;황치곤;윤창표
    • 한국정보통신학회논문지
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    • 제21권11호
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    • pp.2115-2120
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    • 2017
  • 시스템 가시성평가는 복잡한 시스템과 고도의 신뢰성 분야인 In-Vehicle 산업에서 하드웨어 및 소프트웨어간의 융합과 역할 변화에서 시작되었다. 융합의 중심이 기술에서 문화로 자연스럽게 스며드는 형태로 진화하고 있다. 문화의 주변에 기술의 생태적 특징을 반영하기 위해 유니버설미들웨어의 장점인 생명주기모델을 활용하여 시스템의 가시성을 높이고 직관적 판단을 유도하여 혼란 상태를 대비할 수 있다 .본 연구에서는 유니버설미들웨어 기반의 데이터와 서비스모듈을 유기적으로 표준화 및 안정화하여 시스템 가시성 엔진을 시험하고 평가하였다. 이 모듈은 Intelligent Pervasive Cloud 모듈, Memorial Service 모듈, Life Cycler 모듈로 구성하고 현재와 미래의 통신표준과 응용서비스 표준을 비롯한 다양한 요구사항을 반영하였다.

기상환경 분석을 통한 새만금 시설원예단지 적지분석 연구 (Suitability Site Selection by Meteorological Factors for the Protected Horticulture Complex in Saemanguem)

  • 강동현;이시영;김종구;최홍기;박민정;윤성욱;손진관
    • 생물환경조절학회지
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    • 제25권1호
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    • pp.1-8
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    • 2016
  • 본 연구에서는 새만금 개발구역에서 환경조절 비용이 적게 들 수 있도록 기상환경을 분석하여 조성 적지를 선정하는 연구를 진행하였다. 작성된 10개의 주제도를 도면중첩하여 50~59점 지역을 적지로 도출하였다. 그 중 농업생명용지 계획지역을 중첩하여 최종적인 시설원예단지 조성 적지로 선정하였다. 본 연구는 시설원예의 환경조절 비용을 낮추어 부가가치를 상승 시킬 수 있다. 새만금에서 시설원예의 대규모를 통해 우리 농업의 국제 경쟁력 도움이 될 수 있다.

Spatial and Temporal Aspects of Phytoplankton Blooms in Complex Ecosystems Off the Korean Coast from Satellite Ocean Color Observations

  • Ahn, Yu-Hwan;Shanmugam, Palanisamy;Chang, Kyung-Il;Moon, Jeong-Eon;Ryu, Joo-Hyung
    • Ocean Science Journal
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    • 제40권2호
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    • pp.67-78
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    • 2005
  • Complex physical, chemical and biological interactions off the Korean coast created several striking patterns in the phytoplankton blooms, which became conspicuous during the measurements of ocean color from space. This study concentrated on analyzing the spatial and temporal aspects of phytoplankton chlorophyll variability in these areas using an integrated dataset from a Sea-viewing Wide Field-of-view Sensor (SeaWiFS), Advanced Very High Resolution (AVHRR) sensor, and Conductivity Temperature Depth (CTD) sensor. The results showed that chlorophyll concentrations were elevated in coastal and open ocean regions, with strong summer and fall blooms, which appeared to spread out in most of the enclosed bays and neighboring waters due to certain oceanographic processes. The chlorophyll concentration was observed to range between 3 and $54\;mg\;m^{-3}$ inside Jin-hae Bay and adjacent coastal bays and 0.5 and $8\;mg\;m^{-3}$ in the southeast sea offshore waters, this gradual decrease towards oceanic waters suggested physical transports of phytoplankton blooms from the shallow shelves to slope waters through the influence of the Tsushima Warm Current (TWC) along the Tsushima Strait. Horizontal distribution of potential temperature $(\theta)$ and salinity (S) of water off the southeastern coast exhibited cold and low saline surface water $(\theta and warm and high saline subsurface water $({\theta}>12^{\circ}C; S>34.4)$ at 75dBar, corroborating TWC intrusion along the Tsushima Strait. An eastward branch of this current was called the East Korean Warm Current (EKWC), tracked with the help of CTD data and satellite-derived sea surface temperature, which often influenced the dynamics of mesoscale anticyclonic eddy fields off the Korean east coast during the summer season. The process of such mesoscale anticyclonic eddy features might have produced interior upwelling that could have shoaled and steepened the nutricline, enhancing phytoplankton population by advection or diffusion of nutrients in the vicinity of Ulleungdo in the East Sea.

복합유류 토양오염에 따른 유종 해석 (The Interpretation of Petroleum Species from Contaminated Soil by Complex Oil)

  • 임영관;김지연;김완식;이정민
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제24권1호
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    • pp.17-23
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    • 2019
  • Clean soil environment is of crucial importance to sustain lives of ecosystem and humans. With rapid industrialization, there has been a great increase of soil contamination by accidental releases of petroleum products. In general, soil remediation is an expensive and time-consuming process as compared to cleanup of water and air. Moreover, determining the source and responsible parties of soil pollution often turns into legal conflicts and that further delay the cleanup process of contaminated sites. In practice, total petroleum hydrocarbon (TPH) analysis has been employed to determine the petroleum species and to track down the responsible polluters. However, this approach often suffers from differentiating similar TPH species. In this study, we analyzed TPH chromatogram patterns of 24 domestic petroleum products in specific carbon ranges (${\sim}C_{10}$, $C_{10}-C_{12}$, $C_{12}-C_{36}$, and $C_{36}{\sim}$) and the fractional changes of THP ratio in the mixture products of gasoline, kerosene and diesel. The proposed TPH analysis method in this study could serve as a useful tool to better analyze the petroleum species in soils contaminated with complex oil mixtures, and ultimately be used to identify the polluters of soil.