يعرض 601 - 619 نتائج من 619 نتيجة بحث عن '((((purification OR purification) OR stratification) OR modifications) OR codification)', وقت الاستعلام: 0.12s تنقيح النتائج
  1. 601

    A new insight into the separation of oil from oil/water emulsion by Fe<sub>3</sub>O<sub>4</sub>–SiO<sub>2</sub> nanoparticles حسب Wamda Faisal Elmobarak (17058024)

    منشور في 2021
    "…<p dir="ltr">Nanofluids have shown their potential in the oil recovery process through surface modification. Due to their surface characteristics, they can apply to improve the oil production from reservoirs by enabling different enhanced recovery mechanisms. …"
  2. 602

    Complex treatment of oily polluted waters by modified melamine foams: from colloidal emulsions to a free oil removal حسب Sarah Hailan (17787584)

    منشور في 2023
    "…The water contact angles (WCA) were 146° ± 2°, 148° ± 4°, 153° ± 2°, and 150° ± 4° for foams modified by the solutions with concentrations of 0.001 M, 0.005 M, 0.01 M, and 0.02 M, respectively. This modification enables the efficient treatment of various oil/water systems, including oil/water colloidal emulsions (99 vol% of the droplets have dimensions below 500 nm), oil-in-water mixtures up to 40 weight % of the oil component, and “free” oil removal as it was demonstrated in this study for the first time. …"
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  6. 606

    Proteomic analysis of treatment-resistant, stem-like cancer cells. حسب Abou-Antoun, Tamara J.

    منشور في 2013
    "…More importantly, compared to committed cells, tumorspheres showed up-regulation of proteins involved in small molecule biochemistry (indicating high metabolic activity), RNA post translational modification, and energy production. In addition, tumorspheres exhibited significant up-regulation of potent tumorigenic proteins including PDGFRB and survivin. …"
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    article
  7. 607

    Functionalized cellulose nanocrystals extracted from date pits as agricultural waste for the efficient remediation of molybdenum from groundwater: Performance and mechanistic studi... حسب Hadeel A. Al-Karablieh (22302787)

    منشور في 2024
    "…Furthermore, This research provides new knowledge into the modification of date pits using different metal oxides/cellulose nanocrystal particles. …"
  8. 608

    Monodentate Phosphinoamine Nickel Complex Supported on a Metal–Organic Framework for High‐Performance Ethylene Dimerization حسب Wenmiao Chen (5657528)

    منشور في 2024
    "…The highly flexible postsynthetic modification method enables this study to prepare MOFs functionalized with five different substituted phosphines and 3 N‐containing ligands and identify the optimal catalyst <b>UiO‐66‐L5‐NiCl</b><sub><strong>2</strong></sub> with isopropyl substituted nickel mono‐phosphinoamine complex. …"
  9. 609

    Teacher Perceptions of the New Mathematics and Science Curriculum: A Step Towards STEM Implementation in Saudi Arabia حسب MADANI, REHAF A.

    منشور في 2017
    "…Even though, STEM is commonly recognized as a way of strengthening mathematics and science curricula, its exact implications is still unclear, for any intervention or modification in any of the subjects related to science, mathematics, engineering and technology can be considered as STEM implementation. …"
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    Photocatalytic water splitting حسب Khnayzer, Rony S.

    منشور في 2013
    "…Using this technique, low energy photons supplied by the sun can be converted into light of appropriate energy to trigger electronic transitions in high energy absorbing photoactive materials without any chemical modification of the latter. We have shown, that this technology is capable of upconverting visible sunlight to sensitize wide-bandgap semiconductors such as WO3, subsequently extending the photoaction of these materials to cover a larger portion of the solar spectrum. …"
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    masterThesis
  13. 613

    Improved electrochemical performance of SiO2-coated Li-rich layered oxides-Li1.2Ni0.13Mn0.54Co0.13O2 حسب Jeffin James Abraham (14151165)

    منشور في 2022
    "…Herein, we report the surface modification of Li1.2Ni0.13Mn0.54Co0.13O2 by utilizing cheap and readily available silica (SiO2) to improve its electrochemical performance. …"
  14. 614

    Burden of thyroid cancer in North Africa and Middle East 1990–2019 حسب Seyed Aria Nejadghaderi (11651651)

    منشور في 2022
    "…Regarding our findings, it is recommended to establish preventive plans by modification in life style like weight reduction programs.…"
  15. 615

    Wearable wrist to finger photoplethysmogram translation through restoration using super operational neural networks based 1D-CycleGAN for enhancing cardiovascular monitoring حسب Sakib Mahmud (15302404)

    منشور في 2024
    "…This often leads to the modification or even the degradation of the underlying physiological information.…"
  16. 616

    Psychometric properties of a questionnaire assessing the extent of integration in a problem-based learning curriculum حسب Marwan F. Abu-Hijleh (18780834)

    منشور في 2025
    "…Another three items were removed due to high modification indices. The most parsimonious model consisted of 24 items with good fitness indices (<i>χ2</i> = 512.23, df = 236, <i>χ2</i>/df = 2.17, CFI = 0.97, TLI = 0.97, RMSEA = 0.04, SRMR = 0.031, and AIC = 688.22). …"
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    A comprehensive review of hydrogen generation by water splitting using 2D nanomaterials: Photo vs electro-catalysis حسب Fares Almomani (12585685)

    منشور في 2023
    "…MXene has been rigorously investigated based on TiO<sub>2</sub> modification (i.e. in-situ derived MXene-TiO<sub>2</sub> and MXene/TiO<sub>2</sub> nanocomposite) as well as Metal-MXene co-catalyst that provides simple electron channelization to improve overall electro and photo-catalytic activity (Cat<sub>A</sub>)toward W<i>sp</i> and increase the hydrogen evolution reaction (HER). …"
  19. 619

    Physical and chemical properties of black carbon and organic matter from different combustion and photochemical sources using aerodynamic aerosol classification حسب Dawei Hu (2186113)

    منشور في 2021
    "…This suggests that the effect moisture has on the organic chemical profile of wood burning emissions is through changing the durations of the different phases of the burn cycle, not through the chemical modification of the individual phases. In this study, the incandescence signal of a Single Particle Soot Photometer (SP2) was calibrated with three different types of BC particles and compared with that from an Aquadag standard that is commonly used to calibrate SP2 incandescence to a BC mass. …"