Showing 921 - 940 results of 5,311 for search '30 Under 30', query time: 0.10s Refine Results
  1. 921

    Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin Films by Soon Wook Kim, Hong Ki Kim, Jong Won Yun, Eui Jung Kim, Sung Hong Hahn

    Published 2015-01-01
    “…The photocatalytic activity of the prepared TNAs is evaluated by the photodecomposition of methylene blue under UV illumination. The TNAs prepared at an anodizing voltage of 30 V have a high roughness of 30.1 nm and a low water contact angle of 7.5°, resulting in a high photocatalytic performance. …”
    Get full text
    Article
  2. 922

    Sulfuric Acid and Ammonium Sulfate Leaching of Alumina from Lampang Clay by Paweena Numluk, Aphiruk Chaisena

    Published 2012-01-01
    “…An aluminum dissolution efficiency of 95.1 % was achieved under the conditions that resulted in the maximum dissolution efficiency of iron (26.6 %).…”
    Get full text
    Article
  3. 923
  4. 924

    Le Brésil et ses Indiens : une réconciliation impossible ? by François-Michel Le Tourneau

    Published 2017-09-01
    “…The 1988 Constitution of Brazil, which recognizes extensively indigenous land rights, seemed to make possible the reparation of the historical prejudice represented by the territorial dispossession of Indigenous peoples. However, after 30 years, the reconciliation did not take place. …”
    Get full text
    Article
  5. 925

    Evaluation of Land Use Change Trends Using Landscape Measurements (Case Study: Pakdasht City) by Alireza Thernasab, Leila Ebrahimi, Ameneh Haghzad, Mehrdad Ramezan Por

    Published 2023-12-01
    “…According to the results, the area of ​​residential land has increased during the years under study so that its share has increased from %7.1 in the region to %19.5.…”
    Get full text
    Article
  6. 926

    Effect of the Change of Deposition Time on the Secondary Direction and Abnormal Shape of Grains Growth of SnO2 Thin Films by Jin Jeong

    Published 2015-01-01
    “…The Hall Rh value increased linearly until 20 min deposition time, whereas for thin film grown for 30 min it decreased rapidly, showing a relatively similar behaviour to the carrier density. …”
    Get full text
    Article
  7. 927

    A Study of Polishing Feature of Ultrasonic-Assisted Vibration Method in Bamboo Charcoal by Hsin-Min Lee, Tzung-Ming Chen

    Published 2017-01-01
    “…In the machining process, ultrasonic vibration enables the diamond slurry to smoothly pass through the microscopic holes of bamboo charcoal; the end of the bamboo charcoalis able to continue machining on the surface of the workpiece through the grasping force which exists in the microscopic holes. Under the polishing and machining parameters of ultrasonic-assisted vibration, with a diamond slurry concentration of 0.3%, the experimental results show a polishing time of 20 min, a loading of 25 N on the workpiece surface, a spindle speed of 1200 rpm, a vibration frequency of 30 kHz and the original surface roughness value of Ra 0.252 μm equals that of a mirror-like surface at Ra 0.017 μm. …”
    Get full text
    Article
  8. 928
  9. 929

    Mechanical Properties of Scrap Tire Crumbs-Clayey Soil Mixtures Determined by Laboratory Tests by ShanShan Li, Dayong Li

    Published 2018-01-01
    “…During shearing, the dilation of the mixtures occurs, particularly under the condition of a high CSTC and a low vertical pressure. …”
    Get full text
    Article
  10. 930

    Strengthening Data Literacy in K-12 Education: A Scoping Review by Verena Witte, Angela Schwering, Daniel Frischemeier

    Published 2024-12-01
    “…This disparity highlights an imbalance in data literacy development and underscores the need to address under-represented sub-skills, in particular the actual data collection process. …”
    Get full text
    Article
  11. 931

    Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen Production by Wen-Nong Hsu, Teng-Shih Shih, Ming-Yuan Lin

    Published 2014-01-01
    “…The results revealed that the current increased by approximately 23.1% when placed in a 30 wt% KOH solution under the ultrasonic field. …”
    Get full text
    Article
  12. 932
  13. 933
  14. 934
  15. 935
  16. 936
  17. 937
  18. 938
  19. 939
  20. 940

    Experimental Study on Fluid Properties of Cement-Fly Ash Slurry Subjected to Multifactors by Tian Huang, Feng Huang, Huifeng Zhou

    Published 2021-01-01
    “…The addition of fly ash enhances the stability of the slurry under different temperature conditions.…”
    Get full text
    Article