Mostrando 521 - 540 Resultados de 100,426 Para Buscar '"carbón"', tiempo de consulta: 0.50s Limitar resultados
  1. 521
    por Huang, Xiaosong
    Publicado 2009
    “…This paper reviews the research and development activities conducted over the past few decades on carbon fibers. The two most important precursors in the carbon fiber industry are polyacrylonitrile (PAN) and mesophase pitch (MP). …”
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  2. 522
    “…Cells require one-carbon units for nucleotide synthesis, methylation and reductive metabolism, and these pathways support the high proliferative rate of cancer cells. …”
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  3. 523
    “…Here we show that this excitonic insulator is realized in zero-gap carbon nanotubes by performing first-principles calculations through many-body perturbation theory as well as quantum Monte Carlo. …”
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  4. 524
  5. 525
  6. 526
    “…Bacteria encode carbonic anhydrases (CAs, EC 4.2.1.1) belonging to three different genetic families, the α-, β-, and γ-classes. …”
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  7. 527
    por Liljas, Anders
    Publicado 2018
    “…Investigations of the rapid enzyme carbonic anhydrase have now been extended by crystallographic analysis at high CO(2) pressures to examine the movements of water molecules in different steps of the catalysis. …”
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  8. 528
    “…Carbon aerogels demonstrate wide applications for their ultralow density, rich porosity, and multifunctionalities. …”
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  9. 529
  10. 530
    “…Extrusion processing of carbon tubes can be problematic due to their poor interfacial interactions with polymeric matrices. …”
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  11. 531
    “…Many degree-based topological indices can be obtained from the closed-off M-polynomial of a carbon nanocone. These topological indices are numerical parameters that are associated with a structure and, in combination, determine the properties of the carbon nanocone. …”
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  12. 532
    por Min, Joo-Ok, Yoon, Bo-Eun
    Publicado 2017
    “…Introduction: Functionalised carbon nanotubes (CNTs) have been shown to be promising biomaterials in neural systems, such as CNT -based nerve scaffolds to drive nerve regeneration. …”
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  13. 533
    “…Recent examples of this type include the discovery of the coumarins and the polyamine natural products as atypical chemotypes for the inhibition of the metalloenzymes carbonic anhydrases (CAs; EC 4.2.2.1). CA enzymes are established pharmacological targets for important pathologies, which, among others, include glaucoma, hypoxic tumors, and central nervous system (CNS)-affecting diseases. …”
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  14. 534
  15. 535
    por Hinsinger, Karen, Pieters, Grégory
    Publicado 2019
    “…Significant progress in C−C bond activation with transition metals has recently enabled the development of several carbon isotope exchange reactions. These methods are based on C−C bond decarboxylative carboxylation reactions in the presence of selected transition metals and labelled carbon monoxide or carbon dioxide.…”
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  16. 536
    Publicado 2019
    “…Marie and Robert apply their research to help understand the chemical and biological roles of carbon in Earth.…”
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  17. 537
  18. 538
    “…Thus, the multivalent approach may open new opportunities in the drug design of innovative isoform-selective carbonic anhydrase inhibitors with biomedical applications.…”
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  19. 539
    “…[Image: see text] We first report three reliable analytical expressions of the entropy, enthalpy and Gibbs free energy of carbon dioxide (CO(2)) and perform predictions of these three thermodynamic quantities on the basis of the proposed analytical expressions and in terms of experimental values of five molecular constants for CO(2). …”
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  20. 540
    por Li, Zhen, He, Zhen, Chen, Xiaorun
    Publicado 2019
    “…In this research, carbonation-cured concrete was prepared by pre-curing, carbonation curing, and then moisture curing. …”
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