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ng decrease » _ decrease (Expand Search)
nm decrease » _ decrease (Expand Search)
50 ng » 10 ng (Expand Search), 50 μg (Expand Search)
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Mercury pollution in doha (Qatar) coastal environment
Published 1994“…1). Organic Hg (0.6 ng L?1) contributed only 5.0% of total Hg. Mercury showed a strong tendency to be associated with suspended matter in Doha coastal waters, as it represented about 73.0% of the total. …”
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Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study
Published 2024“…Increasing condom use from 10 % to 50 % lowers NG prevalence among FSWs, clients, and their spouses from 12.2 % to 6.4 %, 1.2 % to 0.5 %, and 0.4 % to 0.2 %, respectively. …”
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Study of diesel-biodiesel blends combustion and emission characteristics in a CI engine by adding nanoparticles of Mn (II) supramolecular complex
Published 2020“…X-ray diffraction of one crystal, a spectroscopy technique and transmission electron microscopy (TEM) have been entirely examined for the structure formation of SC1. Adding 50, 100, and 150 ppm of SC1 with hydrogen peroxide (H2O2) is used to prepare the nanofluids emulsions. …”
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The spectral and morphological studies of the conductive polyaniline thin film derivatives by the in situ copolymerization
Published 2017“…The particle size varies in the range of 5–10,000 nm for polyaniline while in case of copolymer it lies in a narrow range of 100–150.…”
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Mechanism and kinetics of electrochemical degradation of uric acid using conductive-diamond anodes
Published 2016“…Interestingly, an almost total mineralization of 50 ppm UA was obtained when anodic oxidation was performed at low current densities (20 mA cm–2) and in the presence of NaCl. …”
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Experimental investigation on the compressibility of Al/Al2O3 nanocomposites
Published 2016“…The results showed that the grain size of milled powders was about 43 nm with a noticeable presence of agglomerates at 10 wt.% of Al2O3. …”
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Curcumin a Colorimetric and Fluorimetric Cyanide Probe in Aqueous System and Living Cells
Published 2019“…Cyanide causes a dramatic color change of the curcumin solution (acetonitrile : water 90 : 10) from bright yellow to dark orange. It causes dramatic spectral changes in the UV-vis spectrum of curcumin by the decrease in the absorption band intensity at 421 nm and a concomitant appearance of a strong band at 520 nm. …”
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Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles
Published 2021“…Scanning electron microscopy (SEM) demonstrated the successful fabrication of nanofibers with diameter range of 140-240 nm as well as nanoparticles with average sizes within the range of 6 nm and 9 nm. …”
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Development of pH-Controlled Aluminum-Based Polymeric Gel for Conformance Control in Sour Gas Reservoirs
Published 2020“…Moreover, the system showed good stability in saline conditions with NaCl concentration of up to 50,000 ppm. Scanning electron microscopy of freeze-dried samples proved the uniform distribution of colloidal crosslinkers and showed sheets wrapping around the colloidal particles. …”
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