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2024년 올해의 야생동물 사진작가 수상작 발표 2024.10.10해당카페글 미리보기
s beard’ lichens indicate that it’s an area of minimal air pollution. Analysis of pollen preserved in the layered sediments shows that the forest has stood here for at least 8,300 years. # Fortunato Gatto/2024 Wildlife Photographer of...
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홍적세, 플라이스토세 -빙하기 πλεῖστος pleistos 2024.08.29해당카페글 미리보기
Eurasia and Gondwana Land.[d] Suess named the resulting sea Tethys, reusing a local name. Tethys received sediments from the adjoining lands until at last they were compressed upward to become roughly parallel mountain chains striking in...
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Re: 폐수(wastewater)에서 중금속 해독... 킬레이션 탐구 중... 2024.08.23해당카페글 미리보기
ions by changing pH, electro-oxidizing potential, or co-precipitation76. It is usually followed by the removal of sediments. A simple schematic of the chemical precipitation process is depicted in Fig. 4. Fig. 4: A simple schematic of...
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Re: 장신구, 벨트, 지퍼 알레르기 원인은? 주로 니켈 알레르기.. 2024.06.21해당카페글 미리보기
presence of nickel compounds in air derives from the combustion of fossil fuels. Direct leaching from rocks and sediments produces high concentrations of nickel in water, where it is present in divalent nickel form, as well as suspended...
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환경질문 2024.06.16해당카페글 미리보기
않으면 biomedia에 의한 접촉산화, 산화지, 하안여과, 수중보, 모래여과상, 토양 트렌치법 등을 적용하며, 하상 퇴적물(sediments)은 준설합니다. 그런데 우리나라 하천은 하상계수가 커 역간접촉산화시설이 유리합니다. 농촌에 적합한 처리 방법으로는...
