Mostrando 601 - 620 Resultados de 100,426 Para Buscar '"carbón"', tiempo de consulta: 0.66s Limitar resultados
  1. 601
    “…Seagrass meadows are an important component of coastal ecosystems globally, and they capture and store organic carbon in living biomass and sediments. Geographical estimates of blue carbon in seagrass habitats are regionally biased, with limited information from the Indo-Pacific region, including Indonesia. …”
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  2. 602
    “…It is generally believed that this occurs through the interaction of the active ions at the carbonate-brine interface (e.g., within a thin brine layer separating the petroleum and the carbonate phases). …”
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  3. 603
    “…[Image: see text] Activated carbon (AC)-based materials have shown promising performance in carbon capture, offering low cost and sustainable sourcing from abundant natural resources. …”
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  4. 604
    “…In this study, we tested the hypothesis that the presence of iron in carbon particulates enhances ultrastructural perturbation in human monocyte-derived macrophages (MDMs) after phagocytosis. …”
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  5. 605
    “…The extended session on Biological Evaluations with Carbon Nanotubes was held on 18 July, 2008 in Nagano as a part of the International Carbon 2008 Conference. …”
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  6. 606
    “…However, while adaptive clones consistently outperform their common ancestor under carbon limiting conditions, in some cases they perform less well than their ancestor in aerobic, carbon-rich environments, indicating that trade-offs can appear when resources are non-limiting. …”
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  7. 607
    “…The present work also highlights the formation of single-walled nanotubes (SWNT) and MWNTs at varying process conditions. These carbon nanostructures have been characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution TEM (HRTEM), Energy dispersive X-ray analysis (EDX) and Raman spectroscopy. …”
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  8. 608
    por Gower, Stith T, Buongiorno, Joseph
    Publicado 2012
    “…Currently, carbon management and biofuel policies are being developed to reduce atmospheric CO(2) and national dependence on foreign oil, and increase carbon storage in ecosystems. …”
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  9. 609
    “…Here we represent thermodynamics on soluble carbon nanotubes that enables deep understanding the interactions between single-walled carbon nanotubes (SWNTs) and molecules. …”
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  10. 610
    “…BACKGROUND: Extensive studies have been conducted to evaluate the effect of external organic Carbon on native soil organic carbon (SOC) decomposition. …”
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  11. 611
    por Xiaojun, Nie, Jianhui, Zhang, Zhengan, Su
    Publicado 2013
    “…Dynamics of soil organic carbon (SOC) are associated with soil erosion, yet there is a shortage of research concerning the relationship between soil erosion, SOC, and especially microbial biomass carbon (MBC). …”
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  12. 612
    “…Moreover, a new crystalline carbon allotrope possessing R3 symmetry (R3-carbon) is predicted using the stochastic SQ method. …”
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  13. 613
    “…SCE) or two anodic peaks at about +0.83 and +0.91 V in 0.05 M NaH(2)PO(4)-Na(2)HPO(4) (pH=7.0) buffer solution with a multi-walled carbon nanotubes-modified glassy carbon electrode (i.e. …”
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  14. 614
    “…Next, the effect of hydroxamate ester was studied in the cascade addition–cyclization–trapping reaction of substrates with a carboncarbon triple bond as a radical acceptor. When substrates with a methacryloyl moiety and a carboncarbon triple bond as two polarity-different radical acceptors were employed, the cascade reaction proceeded effectively. …”
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  15. 615
    “…A better process understanding of how water erosion influences the redistribution of soil organic carbon (SOC) is sorely needed to unravel the role of soil erosion for the carbon (C) budget from local to global scales. …”
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  16. 616
    “…The first layer of the biosensor was polythionine, which was formed by the electrochemical polymerisation of the thionine monomer on a glassy carbon electrode. The remaining layers were coated with chitosan-MWCNTs, GOx, and the chitosan-PTFE film in sequence. …”
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  17. 617
    “…Gas and vapor transport properties were studied in mixed matrix membranes containing elastomeric ethylene-octene copolymer (EOC or poly(ethylene-co-octene)) with three types of carbon fillers: virgin or oxidized multi-walled carbon nanotubes (CNTs) and carbon fibers (CFs). …”
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  18. 618
    “…The inability of both chiral ligands to form standard bis(phosphine) complexes under catalytic conditions was established by high-pressure NMR studies and shown to have a deep impact on the two carboncarbon bond forming reactions both in terms of activity and selectivity. …”
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  19. 619
    “…Three young northern temperate forest communities in the north-central United States were exposed to factorial combinations of elevated carbon dioxide (CO(2)) and tropospheric ozone (O(3)) for 11 years. …”
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  20. 620
    “…Soil type and fertility level influence straw carbon dynamics in the agroecosystems. However, there is a limited understanding of the dynamic processes of straw-derived and soil-derived carbon and the influence of the addition of straw carbon on soil-derived organic carbon in different soils associated with different fertility levels. …”
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