Showing 661 - 680 results of 1,784 for search '(( 25 c decrease ) OR ( 10 ((steel decrease) OR (((nn decrease) OR (a decrease)))) ))*', query time: 0.16s Refine Results
  1. 661

    High temperature thermal stability of innovative nanostructured thin coatings for advanced tooling by Cabibbo, Marcello

    Published 2014
    “…The main problem with steel, isthat itexhibits a relatively low hardness (below 10 GPa) which strongly decreases upon annealing above about 600 K.Thus, the majority of modern tools are nowadays coated with hard coatings that increase the hardness, decrease the coefficient of friction and protect the tools against oxidation. …”
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  2. 662

    The Structure of the Free Volume in Poly(styrene-co-acrylonitrile) from Positron Lifetime and Pressure Volume Temperature (PVT) Experiments by Dlubek, Gunter

    Published 2004
    “…Summary: The structure of the free volume and its temperature dependence between 25 and 190 °C of copolymers of styrene with acrylonitrile, SAN (0 to 50 mol-% AN), is studied by pressure volume temperature (PVT) experiments and positron annihilation lifetime spectroscopy (PALS). …”
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  3. 663
  4. 664

    Thermal characterization of phase change materials based on linear low-density polyethylene, paraffin wax and expanded graphite by Sobolciak, Patrik

    Published 2016
    “….% of paraffin wax was investigated in the temperature range 25–35 °C, they exhibited a drop in Qsens from 31 to 24 J/g depending on the concentration of EG. …”
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  5. 665

    Mechanical and microstructure characterization of hard nanostructured N-bearing thin coating by Cabibbo, M.

    Published 2015
    “…The main problem with steel, is that it exhibits a relatively low hardness (below 10GPa) which strongly decreases upon annealing above about 600K. …”
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  6. 666
  7. 667

    Development of pH-Controlled Aluminum-Based Polymeric Gel for Conformance Control in Sour Gas Reservoirs by Shamlooh M.

    Published 2020
    “…The results reveal that aluminum acetate, among the screened salts, has a controllable gelation time at pH conditions between 3.5 and 8.5 and is the most stable in the temperature range 25–100 °C. PAM/AlAc system has a gelation time of around 50 min at 75 °C making it suitable for near-wellbore treatments, while the gelation time increased to 80 min upon increasing the pH of the system from 4.1 to 4.6. …”
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  8. 668

    Effect of concentration of DOC loaded TiO 2 nanotubes on the corrosion behavior of smart coatings by Ubaid F.

    Published 2019
    “…Towards this direction, TiO2 nanotubes with an average size of ⁓10–15 nm (as confirmed by scanning electron microscope (SEM) and transmission electron microscope (TEM) analysis) were synthesized through a hydrothermal process and were then impregnated with DOC. …”
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  9. 669

    The electrolytic treatment of synthetic urine using DSA electrodes by Sondos, Dbira

    Published 2015
    “…The most efficient conditions were found to be low current densities (20Ahdm−3) and low temperatures (25°C), which in addition prevents the formation of chlorate and perchlorate ions in the reaction system.…”
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  10. 670

    Experimental and numerical investigation of the flexural behavior of one-way RC slabs strengthened with near-surface mounted and externally bonded systems by Aljidda, Omar

    Published 2024
    “…In contrast, the slabs reinforced with EB experienced a decrease in ductility ranging from 38 % to 50 %. …”
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  11. 671
  12. 672
  13. 673

    Heat stress impairs proprioception but not running mechanics by Mtibaa K.

    Published 2019
    “…Step frequency decreased (−2.5 ± 3.6%) and step length increased (+2.6 ± 3.8%) over time (p < 0.05), independently of condition. …”
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  14. 674

    Effects of combined calcium hypochlorite and chlorine dioxide on drinking water quality in Qatar and disinfection by-products formation by Mohamed, Elsamoul H.

    Published 2017
    “…The bottles were spiked with Ca(ClO)2 in sequence to give concentration of 0.2, 0.4, 0.6, 0.8, 1.0, and 1.2 mg/L as free chlorine. The mixtures were stored for 7 days at 25°C in the dark then heated to 45°C for two days more, and analyzed daily for physical and chemical parameters. …”
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  15. 675
  16. 676
  17. 677
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  19. 679

    Application of magnetic nanoparticles for the removal of oil from oil-in-water emulsion: Regeneration/reuse of spent particles by Elmobarak W.F.

    Published 2021
    “…Up to 98.6% of the %Roil was attained for Coil in the range from 0 to 800 mg/L using only a DMNP of 10 mg/L. A lower DMNP of 5 mg/L recovered up to 55.6% of the oil, while increasing the DMNP > 50 mg/L did not significantly affect the %ηdem nor the %Roil. …”
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  20. 680

    Assessment of SnO2 nanoparticles' impact on local Pichoclorum atomus growth performance, cell morphology and metabolites content by Bounnit, Touria

    Published 2021
    “…Five different concentrations (1, 5, 25, 50 and 100mg/L) were tested and the culture was followed for 72h. …”
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