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تأثیر میکرو و نانوذرات دی اکسید سیلیسیم (SiO2) روی برخی ویژگی های کیفی و عناصر غذایی میوه توت فرنگی (Fragaria ananassa Duch.)
Published 2016-10-01“…بر اساس نتایج به دست آمده، کاربرد دی اکسید سیلیسیم (SiO2) طی مرحله رشد گیاه به خصوص در مقیاس نانو باعث افزایش اکثر عناصر غذایی و بهبود کیفی میوه توت فرنگی گردید. …”
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Preparation and ablation behavior of solid solution ceramic Ta0·2Zr0·8C–SiC matrix-modified C/C composites under high heat flux
Published 2025-03-01“…The comparative samples of C/C–ZrC–SiC and C/C–TaC–SiC were also prepared using these same technologies. …”
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Combined Experimental and CFD Investigation of the Parabolic Shaped Solar Collector Utilizing Nanofluid (CuO-H2O and SiO2-H2O) as a Working Fluid
Published 2016-01-01“…Different types of nanomaterials used are SiO2 and CuO of 20 nm average size. Nanofluids of SiO2-H2O (DI) and CuO-H2O (DI) of 0.01% volume concentration are used. …”
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The crystal structure of [N-{[2-(oxy)-4-methoxyphenyl](phenyl)methylidene}alaninato]-diphenyl-silicon(IV) – chloroform (1/1), C29H25NO4Si·CHCl3
Published 2023-08-01“…C29H25NO4Si·CHCl3, monoclinic, P21/c (no. 14), a = 17.1316(8) Å, b = 10.1173(3) Å, c = 18.2252(8) Å, β = 117.195(3)° $117.195(3){}^{\circ}$ , V = 2809.7(2) Å3, Z = 4, R gt(F) = 0.0431, wR ref(F 2) = 0.1050, T = 153 K.…”
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Evolution of the Radiation Shielding, Optical, and Luminescence Properties of PbO<sub>2</sub>-SiO<sub>2</sub> Glass Systems and the Influence of Rare Earth Elements (Eu, Ce, Yb)
Published 2025-01-01“…Four glass systems were analyzed: PbO<sub>2</sub>-SiO<sub>2</sub> (PS), PbO<sub>2</sub>-SiO<sub>2</sub>-CeO<sub>2</sub> (PSC), PbO<sub>2</sub>-SiO<sub>2</sub>-Eu<sub>2</sub>O<sub>3</sub> (PSE), and PbO<sub>2</sub>-SiO<sub>2</sub>-Yb<sub>2</sub>O<sub>3</sub> (PSY). …”
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Impact of Ag2O on physical and electrical properties of Li2O-MgO-Bi2O3-SiO2 glass system as promising solid state electrolytes
Published 2025-02-01“…Abstract The intrinsic aim of this work is to understand the influence of composition change on the physical-electrical parameters of glasses with the composition (20-Y) Li2O-YAg2O–20MgO–10Bi2O3-50SiO2 (Y = 0.25, 0.5, 1.0, 2.0 and 4.0 mol%). The results of the physical parameters indicate a growth in the strength of the glass structure with the increase replacement of Li2O by Ag2O. …”
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Design and fabrication of (Hf0.25Zr0.25Ta0.25Nb0.25)C–SiC ceramics with improved microwave absorbing properties via PDC route
Published 2025-01-01“…In this study, (Hf0.25Zr0.25Ta0.25Nb0.25)C–SiC (HEC–SiC) biphasic ceramic powders were synthesized via a single-source-precursor route. …”
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Rev1, Rev3, or Rev7 siRNA Abolishes Ultraviolet Light-Induced Translesion Replication in HeLa Cells: A Comprehensive Study Using Alkaline Sucrose Density Gradient Sedimentation
Published 2010-01-01“…Forth, although siRNA to Polι had no detectable effect, that to Polκ delayed UV-TLS. …”
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One-Pot Synthesis, X-Ray Diffraction and MAS NMR Spectroscopic Study of Gallosilicate Nitrate Cancrinite Na8[GaSiO4]6(NO3)4(H2O)6
Published 2010-01-01“…The results by MAS NMR spectroscopy confirmed the alternating Si, Ga ordering of the gallosilicate framework for a Si/Ga ratio of 1.0. …”
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Synthesis of the Magnetically Nanoporous Organic Polymer Fe3O4@SiO2-NH2-COP and Its Application in the Determination of Sulfonamide Residues in Surface Water Surrounding a Cattle Farm
Published 2022-01-01“…A new nanoporous material, namely, magnetically covalent organic polymer (MCOP, Fe3O4@SiO2-NH2-COP) was synthesized in this work and was used for magnetic solid-phase extraction (MSPE). …”
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H4SiW12O40 Catalyzed One-Pot Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[a] Xanthen-11-ones Under Solvent-Free Conditions
Published 2012-01-01“…An efficient and environmentally benign protocol for the one-pot, three-component synthesis of 12-aryl-8,9,10,12-tetrahydro-benzo[a]xanthen-11-one derivatives by condensation of aryl aldehydes, 2-naphthol and dimedone using H4SiW12O40 (SiWA) as a reusable catalyst with high catalytic activity was reported. …”
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Er<sup>3+</sup>,Yb<sup>3+</sup>:YGdSiO<sub>5</sub> Crystal as Gain Media for Lasers Emitting in the Spectral Range of 1.5–1.6 µm
Published 2022-04-01“…By this reason the search for new crystalline hosts doped with erbium ions is the actual task.In this article the investigation results of spectroscopic properties of Er3+,Yb3+:YGdSiO5 (YGSO) crystals are reported. Polarized absorption and luminescence spectra were measured. …”
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Effect of Number of Various-Type Acid Sites Located on 20 % Co/ZrO2 • SiO2 Sample Surface on Parameters of Catalytic Process in Synthesis of High-Octane Motor Fuel Components
Published 2011-10-01“…The paper considers an effect of ZrO2 content in 20%Co/xZrO2∙(100 – x)SiO2 (x = 0, 10, 15, 25, 30, 40 and 100 mass percent) catalyst carriers on their catalytic properties. …”
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Positively charged polysilsesquioxane/iodide lonic liquid as a quasi solid-state redox electrolyte for dye-sensitized photo electrochemical cells: infrared, <mml:math alttext="$^{{ext{29}}} {ext{Si}}$"> <mml:mrow> <mml:msup> <mml:mi></mml:mi> <mml:mrow> <mml:mtext>29</mml:mtext> </mml:mrow> </mml:msup> <mml:mtext>Si</mml:mtext> </mml:mrow> </mml:math> NMR, and electrical studies
Published 2006-01-01“…MTMSPI<mml:math alttext="$^+I^-$"> <mml:mrow> <mml:msup> <mml:mi></mml:mi> <mml:mtext>+</mml:mtext> </mml:msup> <mml:msup> <mml:mtext>I</mml:mtext> <mml:mo>−</mml:mo> </mml:msup> </mml:mrow> </mml:math> was hydrolyzed with acidified water and the reaction products of the sol-gel condensation reactions assessed with the help of <mml:math alttext="$^{{ext{29}}} {ext{Si}}$"> <mml:mrow> <mml:msup> <mml:mi></mml:mi> <mml:mrow> <mml:mtext>29</mml:mtext> </mml:mrow> </mml:msup> <mml:mtext>Si</mml:mtext> </mml:mrow> </mml:math> NMR and infrared spectroscopic techniques. …”
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