Mostrando 1,261 - 1,280 Resultados de 100,426 Para Buscar '"carbón"', tiempo de consulta: 0.44s Limitar resultados
  1. 1261
    “…To analyze the impact of government carbon tax and subsidy policies on the manufac turing industry in the context of carbon peaking and carbon neutrality. …”
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  2. 1262
    “…Forest soil carbon (C) sequestration has an important effect on global C dynamics and is regulated by various environmental factors. …”
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  3. 1263
    por Yu, Na, Chen, Jianghua, Cheng, Lei
    Publicado 2022
    “…As one of the most efficient means of emission reduction policies, carbon quota trading has a far-reaching impact on the carbon emission reduction of enterprises. …”
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  4. 1264
    “…Climate warming affects the carbon cycle of northern peatlands through temperature rises and a changing carbon availability. …”
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  5. 1265
    “…Carbon emission reduction and achieving carbon neutrality has become an inevitable trend in the sustainable development era. …”
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  6. 1266
    “…In this study, nano-porous carbon was completely obtained from oil palm leaves (OPL) by hydrothermal pretreatment with chemical activation, using potassium hydroxide (KOH) as an activating agent. …”
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  7. 1267
    “…[Image: see text] We describe a new synthetic reaction that generates all-carbon bis-quaternary centers at the opposing side of α-carbons in cyclohexanone with four different substituents in a controlled manner. …”
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  8. 1268
    “…The development of bifunctional ionic polymers as heterogeneous catalysts for effective, cocatalyst- and metal-free cycloaddition of carbon dioxide into cyclic carbonates has attracted increasing attention. …”
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  9. 1269
  10. 1270
    “…In this work, we describe a method for the synthesis of hitherto unavailable 6-unsubstituted 2-aryl-DPs by Pd-catalyzed/Cu-mediated carboncarbon cross-coupling reaction of 1-Boc 2-methylthio-DPs with organostannane reagents. …”
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  11. 1271
    “…Marine and lacustrine carbonate minerals preserve carbon cycle information, and their stable carbon isotope values (δ(13)C) are frequently used to infer and reconstruct paleoenvironmental changes. …”
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  12. 1272
    por Zhang, Yulong, Pan, Binbin
    Publicado 2022
    “…Traditional Production-Based Accounting (PBA) principle does not consider the embodied carbon emissions in export and import trade. A multiregional input–output (MRIO) model is constructed to estimate the embodied carbon dioxide emissions of 41 countries and regions worldwide, based on the PBA and shared responsibility approach in this paper. …”
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  13. 1273
    por Yu, Wanlin, Luo, Jinlong
    Publicado 2022
    “…It is the core of China’s goal of achieving carbon peaking and carbon neutrality. This paper regards the introduction of pilot carbon emission trading policies as a quasi-natural experiment. …”
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  14. 1274
    “…Natural rubber with 50 mol % epoxidation (ENR-50) was filled with carbon nanotubes (CNTs) and conductive carbon black (CCB) hybrid fillers with various CCB loadings of 2.5, 5.0, 7.0, 10.0 and 15.0 phr, and the compounds were mixed with ferric ion (Fe(3+)) as a crosslinking agent. …”
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  15. 1275
  16. 1276
    “…The lockdown policies related with the COVID-19 pandemic brings carbon emissions slump, but emissions potentially restore to increase as lockdown policies relaxed and the economy recovers. …”
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  17. 1277
  18. 1278
    por Wang, Linjiao, Sheng, Maoyin
    Publicado 2022
    “…Crop cultivation has great potential to result in a phytolith carbon sink and can play important roles in the long-term stable carbon sequestration of terrestrial ecosystems. …”
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  19. 1279
    “…This study investigates the electrical heating (also known as Joule heating) characteristics of cementitious composites containing multi-walled carbon nanotubes (CNT) and carbon fibers (CF) as electrically conductive media in an attempt to develop an eco-friendly and sustainable solution to snow and ice removal on roadway pavements during the winter season. …”
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  20. 1280
    “…However, there are no micropores smaller than 0.5 nm in the analysed activated carbons, which precludes their use for carbon dioxide adsorption for processes conducted at pressures less than 0.01 MPa.…”
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