• 제목/요약/키워드: Industrial plant

검색결과 2,460건 처리시간 0.031초

지치(Lithospermum erythrorhizon) 개체군 자생지의 생태학적 특성 (Ecological Characteristics of Lithospermum erythrorhizon Population in Habitats)

  • 안영희;김영화;최창용;이경미;이상현
    • 생약학회지
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    • 제40권4호
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    • pp.289-297
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    • 2009
  • This study was carried out to investigate the ecological characteristic of native Lithospermum erythrorhizon population in Korea. The survey quadrates were located in the middle of native L. erythrorhizon habitats. As the result of the research, the ecological patterns of native habitats were found to be divided into inclined plane type, ridge type, mountain-roadside type, and rock bed type. The research revealed 90 taxa in total, in which 37 families, 63 genera, 23 varieties, 6 forma, 1 sub-species and 60 species were checked in the flora of native L. erythrorhizon habitats.

산업시설 배관의 섹션화에 의한 노후도 평가 (Deterioration Evaluation for Industrial Pipeline by Sectionalizing)

  • 민혁기;김상범;김병우;김형기;박률
    • 설비공학논문집
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    • 제28권3호
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    • pp.123-130
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    • 2016
  • This study introduced deterioration evaluation item and criteria that could be applied to industrial facilities with the most widely used carbon steel pipe installed for ordinary piping (KSD 3507). Experimental industrial pipes were evaluated with pipe sectionalizing method combined with the established evaluation item and criteria to measure and manage semi-continuously for overall piping system. After applying outcomes from this study to a plant of incineration facility, a 42% saving in repairing and remodeling cost was achieved.

FASTMET$\circledR$ Process for Steel Mill Waste Recycling

  • Tanaka, Hidetoshi;Harada, Takao;Sugitatsu, Hiroshi
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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    • pp.387-392
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    • 2001
  • Kobe Steel, LTD. and Midrex Technologies Inc. jointly developed the FASTMET$\circledR$ process as a steel mill waste recycle technology in which the DRI product meets BF feed material or BOF/EAF feed material requirements. FASTMET(R) process turns value-less wastes into valuable DRI and sellable zinc oxide, and gives the solution for the steel mill wastes recycling from both economical and environmental viewpoints. During the development of the process, Laboratory, Pilot Plant and Demonstration Plant tests were carried out from 1990 to 1998. The first FASTMET(R) commercial plant began operation in April, 2000 and the second commercial plant started in April, 2001 Both commercial plants have proceeded successfully preying that FASTMET$\circledR$ is a suitable process for recycling steel mill waste and for producing DRI as an iron source.

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Evaluation of Genetic Diversity and Population Structure Analysis among Germplasm of Agaricus bisporus by SSR Markers

  • An, Hyejin;Lee, Hwa-Yong;Shin, Hyeran;Bang, Jun Hyoung;Han, Seahee;Oh, Youn-Lee;Jang, Kab-Yeul;Cho, Hyunwoo;Hyun, Tae Kyung;Sung, Jwakyung;So, Yoon-Sup;Jo, Ick-Hyun;Chung, Jong-Wook
    • Mycobiology
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    • 제49권4호
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    • pp.376-384
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    • 2021
  • Agaricus bisporus is a popular edible mushroom that is cultivated worldwide. Due to its secondary homothallic nature, cultivated A. bisporus strains have low genetic diversity, and breeding novel strains is challenging. The aim of this study was to investigate the genetic diversity and population structure of globally collected A. bisporus strains using simple sequence repeat (SSR) markers. Agaricus bisporus strains were divided based on genetic distance-based groups and model-based subpopulations. The major allele frequency (MAF), number of genotypes (NG), number of alleles (NA), observed heterozygosity (HO), expected heterozygosity (HE), and polymorphic information content (PIC) were calculated, and genetic distance, population structure, genetic differentiation, and Hardy-Weinberg equilibrium (HWE) were assessed. Strains were divided into two groups by distance-based analysis and into three subpopulations by model-based analysis. Strains in subpopulations POP A and POP B were included in Group I, and strains in subpopulation POP C were included in Group II. Genetic differentiation between strains was 99%. Marker AB-gSSR-1057 in Group II and subpopulation POP C was confirmed to be in HWE. These results will enhance A. bisporus breeding programs and support the protection of genetic resources.

우리나라의 플랜트 산업의 현황과 수출촉진 방안 (Korea Plant Now & A Plan to Promote Its Export)

  • 신용하;조영준;손병진
    • 산업경영시스템학회지
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    • 제15권26호
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    • pp.201-215
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    • 1992
  • Plant industry, which get high added value, renders to finding a new market for foreign trade by reducing its trouble and promoting economic collaboration. Inspite of this advance, korea plant industry has low techical know-how and has not been koreanized yet. This report presents the range and characteristics of the korean plant industry in chapter one, the present condition in chapter two, and the trend of plant industry of the world in chapter three. It concludes by showing the reform measures of korean plant industry which promoting korean export.

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Life cycle impact assessment of the environmental infrastructures in operation phase: Case of an industrial waste incineration plant

  • Kim, Hyeong-Woo;Kim, Kyeong-Ho;Park, Hung-Suck
    • Environmental Engineering Research
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    • 제22권3호
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    • pp.266-276
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    • 2017
  • A life cycle impact assessment was applied in an industrial waste incineration plant to evaluate the direct and indirect environmental impacts based on toxicity and non-toxicity categories. The detailed life cycle inventory of material and energy inputs and emission outputs was compiled based on the realistic data collected from a local industrial waste incineration plant, and the Korean life cycle inventory and ecoinvent database. The functional unit was the treatment of 1 tonne of industrial waste by incineration and the system boundary included the incineration plant and landfilling of ash. The result on the variation of the impact by the unit processes showed that the direct impact was decreased by 79.3, 71.6, and 90.1% for the processes in a semi dry reactor, bag filter, and wet scrubber, respectively. Considering the final impact produced from stack, the toxicity categories comprised 91.7% of the total impact. Among the toxicity impact categories, the impact in the eco-toxicity category was most significant. A separate estimation of the impact due to direct and indirect emissions showed that the direct impact was 97.7% of the total impact. The steam recovered from the waste heat of the incineration plant resulted in a negative environmental burden.