Search Results - "time"

  1. 181

    Optimization of the extraction conditions of a natural dye from Morus nigra by Rolón Boytovich, Natalia E., Rodríguez , María D.

    Published 2020
    “…To improve dye extraction, an experimental design was used and the factors under evaluation were ethanol concentration, temperature and time. Consequently, ethanol concentration and temperature turned out to be the relevant factors, but not timing. …”
    Get full text
    Online
  2. 182

    Optimisation of the enzymatic hydrolysis of rice husk by Arismendy Pabon, Ana Maria, Villa Restrepo, Andrés Felipe, Alcaraz Zapata, Wilman, Chamorro, Ester R., Area, Maria C.

    Published 2019
    “…Then an optimization design was applied for the variables: pH, FPU and time, discarding the ones with the lowest level of significance. …”
    Get full text
    Online
  3. 183

    Maceration for wood tissue microscopy, using monoethanolamine in alkaline medium by Núñez, Carlos Eduardo

    Published 2016
    “…This work is based on the need to have a method for the isolation of lignocellulosic fibrous material for microscopy, without damaging the cells so much, which can be carried out in a short time in the laboratory, at atmospheric pressure, and without toxic. …”
    Get full text
    Online
  4. 184

    Comparison of Finite Difference Models Applied to Soil Infiltration by Pedrozo, Hector A., Rosenberger, Mario R., Schvezov, Carlos E.

    Published 2015
    “…It was found that the three models converge to the same solution for the sensitivity analysis of the %t variable and the Crank-Nicolson’s model has the lowest relative errors in the area of the wet front which, despite its complexity, requires reduced computation time.…”
    Get full text
    Online
  5. 185

    Deactivation of nickel hydroxide-gold modified electrodes by Tucceri, Ismael R., Caram, Bruno F.

    Published 2013
    “…This rate decreased with the increase of the storage time.…”
    Get full text
    Online
  6. 186
  7. 187
  8. 188

    Energy, Complexity and Strategies of Evolution. En: Avá, nº 14 by Adams, Richard N.

    Published 2008
    “…It is left mainly to archaeologists because they have to make sense of how society works and survives through time–a concern that has pretty much been abandoned by many cultural anthropologists. …”
    Get full text
    artículo
  9. 189
  10. 190
  11. 191

    Seed conservation of palo-rosa by Otegui, Mónica B., Ojeda, Diego S., Totaro, María E., Eibl, Beatriz I., Valdés, María B., Mallozzi, Gisela Y.

    Published 2016
    “…Viability and vigor were measured through germination percentage, and vigor, through mean germination time and germination rate index, at 0, 7, 20, 48 and 60 months of age using the variables germination rate, mean germination time and germination speed index. …”
    Get full text
    Online
  12. 192

    Effect of frozen storage on bread of cassava starch: Physical textural and sensory properties by Milde, Laura B., Cabral, Fernando A., Ramírez, Romina

    Published 2014
    “…In general, freezing influenced gluten-free mass analyzed, but not storage time.…”
    Get full text
    Online
  13. 193
  14. 194

    Política y sociedad en el Perú : cambios y continuidades / by Cotler, Julio

    Published 1994
    Get full text
    Libros Digitales
  15. 195
  16. 196
  17. 197
  18. 198
  19. 199
  20. 200