يعرض 221 - 240 نتائج من 250 نتيجة بحث عن '(( a (teer OR per) decrease ) OR ( 100 ((((we decrease) OR (nn decrease))) OR (a decrease)) ))', وقت الاستعلام: 0.16s تنقيح النتائج
  1. 221

    Centrifugal Compressor Spiral Dry Gas Seal Simulation Working at Reverse Rotation حسب Ibrahim, Shahin

    منشور في 2013
    "…The open force corresponding to reverse rotation increased with a value 1.5kN for both the 100 overlap and 50% forward overlap seal faces, but using seal face with 50% backward overlap failed to enhance the open force at reversal condition.…"
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  2. 222

    Thermochemical splitting of CO2 using solution combustion synthesized lanthanum-strontium-anganese perovskites حسب Takalkar, G.

    منشور في 2021
    "…Redox reactivity of La(1-x)SrxMnO3 (LSM) perovskites towards a solar thermochemical CO2 splitting (CS) cycle is investigated. …"
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  3. 223

    Impact Of Fines On Gas Relative Permeability Through Sand Using Pore Networks From 3d Synchrotron Micro-Computed Tomography حسب Hannun, Jamal Adel Ibrahim

    منشور في 2019
    "…Three-dimensional, synchrotron micro-computed tomography images of sand sediments were obtained at Argonne National Laboratory at a resolution of 3.89 micron per voxel. Kaolinite and Montmorillonite fine particles were added in varied concentrations in six soil specimens, each system was scanned at four stages with varied saturations of brine and CO2, resulting in 20 systems. …"
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  4. 224
  5. 225

    Effect of electroless bath composition on the mechanical, chemical, and electrochemical properties of new NiP-C 3 N 4 nanocomposite coatings حسب Fayyad E.M.

    منشور في 2019
    "…The results indicated that the alkaline electroless bath produced a NiP–C3N4 NCC with a microhardness 250 HV200 higher than that produced from the acidic one. …"
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  6. 226

    The Separation of Emulsified Water/Oil Mixtures through Adsorption on Plasma-Treated Polyethylene Powder حسب Abdulkareem, Asma

    منشور في 2021
    "…This work addresses the preparation and characterization of efficient adsorbents for tertiary treatment (oil content below 100 ppm) of oil/water emulsions. Powdered low-density polyethylene (LDPE) was modified by radio-frequency plasma discharge and then used as a medium for the treatment of emulsified diesel oil/water mixtures in the concentration range from 75 ppm to 200 ppm. …"
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  7. 227

    Functionalization of silica-coated magnetic nanoparticles as powerful demulsifier to recover oil from oil-in-water emulsion حسب Elmobarak W.F.

    منشور في 2021
    "…Increasing the water salinity from 0.1 to 0.5 M slightly improved the %Soil for the tests carried out with a Doil of 100 mg/L to 93.3%, 90.3%, and 86.3% for Fe–Si-2, Fe–Si-3, and FeSi-4, respectively. …"
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  8. 228

    Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process حسب Reddya, M. Penchal

    منشور في 2017
    "…Results showed that, as the content of hard ceramic particles increases, it improves overall mechanical properties including microhardness, 0.2% yield strength, ultimate compression/tensile strength, and Young's modulus while the ductility and co-efficient of thermal expansion decreases. XRD patterns and SEM/EDS mapping images show a uniform distribution of Al2O3 particles in the Al matrix. …"
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  9. 229

    Bromate reduction by ultraviolet light irradiation using medium pressure lamp حسب Bensalah, Nasr

    منشور في 2013
    "…The observed rate constant (kobs) decreased with increasing bromate concentrations upto 100 μg/L and then it becomes constant at 0.058 min-1 for higher bromate concentrations. …"
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  10. 230

    Conversion of Organic Municipal Wastes into Biochars and their Effect on Fertility Parameters of Normal and Sabkha Soils of Qatar حسب Ahmedna, Mohamed

    منشور في 2016
    "…Box-Behnken experimental design was used instead of the full factorial to decrease the number of treatments to a manageable level (126 treatments) with three replications at the center. …"
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  11. 231

    Concentrated Solar Power Plant for Key Locations in Doha Qatar حسب Elbeh, Mutaz Bargas

    منشور في 2017
    "…The main components of this technology are reviewed as well. As a part of the literature review, a data base for all the CSP projects around the world is made and a Microsoft Excel model for calculating the available solar irradiance in any location of the world is prepared. …"
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  12. 232

    Electrochemical and thermodynamic study on the corrosion performance of API X120 steel in 3.5% NaCl solution حسب Shahzad, Khuram

    منشور في 2020
    "…The overall results revealed that PEI significantly decreases the corrosion rate of API X120 steel with inhibition efficiency of 94% at a concentration of 100 μmol L−1. …"
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  13. 233

    Umbelliferone inhibits spermatogenic defects and testicular injury in lead-intoxicated rats by suppressing oxidative stress and inflammation, and improving Nrf2/HO-1 signaling حسب Alotaibi, Mohammed F.

    منشور في 2020
    "…Materials and Methods: Rats received lead acetate (50 mg/kg) and UMB (25, 50 or 100 mg/kg) via oral gavage for 4 weeks. Results: Pb-intoxicated rats exhibited testicular tissue injury and decreased serum levels of LH, FSH and testosterone. …"
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  14. 234

    Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process حسب Reddy, M. Penchal

    منشور في 2017
    "…Results showed that, as the content of hard ceramic particles increases, it improves overall mechanical properties including microhardness, 0.2% yield strength, ultimate compression/tensile strength, and Young's modulus while the ductility and co-efficient of thermal expansion decreases. XRD patterns and SEM/EDS mapping images show a uniform distribution of Al2O3 particles in the Al matrix. …"
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  15. 235

    Location privacy preservation in secure crowdsourcing-based cooperative spectrum sensing حسب Zina, Chkirbene

    منشور في 2016
    "…The existing solutions present a high level of complexity which decreases the performance of the systems. …"
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  16. 236

    Driver Drowsiness Detection Study using Heart Rate Variability analysis in Virtual Reality Environment حسب Chowdhury, Muhammad E.H.

    منشور في 2018
    "…As it can be seen from Fig. 4, there is a significant difference in the LF/HF ratios, as it decreased drastically from 4.164 (Fig. 4A) when subject was awake to 1.355 (Fig. 4B) when subject was drowsy. …"
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  17. 237
  18. 238

    Development of Inorganically Cross-Linked Sulfonated Polyacrylamide Preformed Particle Gels for Conformance Control: Impact of Anionic Groups حسب Elaf, Reem

    منشور في 2024
    "…These PPGs function as superabsorbents, capable of absorbing water at a ratio of 100-700 times their dry weight while maintaining adequate gel strength up to 2709 Pa. …"
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  19. 239
  20. 240

    Prevalence and Phylogenetic Analysis of Parvovirus (B19V) among Blood Donors with Different Nationalities Residing in Qatar حسب Abdelrahman, Doua

    منشور في 2021
    "…B19V genotyping showed a predominance of Genotype 1 (100%). Sequence analysis of the NS1-VP1u region revealed 139 mutation sites, some of which were amino acid substitutions. …"
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