Showing 681 - 700 results of 848 for search '"fossil fuels"', query time: 0.50s Refine Results
  1. 681
  2. 682
    Published in 2018
    Repositorio Universidad Nacional de Colombia

    ... that this product has important characteristics to be used as a biofuel or as a fossil fuel additive, reducing...
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  3. 683
  4. 684
  5. 685
  6. 686
  7. 687
    Article of journal
    Published in 2022
    Repositorio Biblioteca Digital Universidad Externado de Colombia

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  8. 688
    Conferencia (Ponencia)
    Repositorio Séneca: repositorio Uniandes

    ...Growing concerns about ocean contamination from fossil fuel based polymers have created a demand...
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  9. 689
    Article of journal
    Repositorio Universidad Nacional de Colombia

    ...The main difficulty with fossil fuel combustión lies in sulphur and nitrogen becoming converted...
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  10. 690
  11. 691
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  14. 694
  15. 695
  16. 696
    Doctoral thesis
    Published in 2017
    Repositorio Universidad Nacional de Colombia

    ..., particularly those based on fossil - fuel plant, are shifting from their stable and predictable situation...
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  17. 697
    Article of journal
    Repositorio Universidad Nacional de Colombia

    ... and secondary tillage and only used fossil fuel to prepare the soca of the previous culture. Referred to SD, LC...
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  18. 698
  19. 699
  20. 700