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Приказ резултата 1-10 од 3464
Isopiestic determination of osmotic coefficients in the ionic strength range Im = (0.9670–2.2160) mol⋅kg−1 and activity coefficients determined by electromotive force measurements in the range Im = (0.0897–1.0054) mol⋅kg−1 of the {yKCl + (1 – y) K2HPO4}(aq) system at T = 298.15 K
(Elsevier B.V., 2022)
The mean activity coefficients of KCl in the ternary system {y KCl + (1 – y) K2HPO4}(aq) were experimentally determined at T = (298.15 ± 0.01) K by the electromotive force measurement (EMF method) using the cell of the ...
Highly Active Rutile TiO2 Nanocrystalline Photocatalysts
(Amer Chemical Soc, Washington, 2020)
The controllable synthesis of rutile TiO2 single crystal particles with the preferential orientation of {111} facets still remains a scientific and technological challenge. Here, we developed a facile route for fabrication ...
Antioxidant and neuroprotective activities of selected 2-pyridones: In vitro and in silico study
(Elsevier B.V., 2022)
Series of twenty-four 2-pyridone derivatives were screened and selected using the antioxidant ABTS assay
in order to find the most prominent compounds for further in vitro and in silico analyses. Seven derivatives with ...
Antibacterial Activity of pH-Sensitive Silver(I)/Poly(2-hydroxyethyl acrylate/itaconic acid) Hydrogels
(Polymer Soc Korea, Seoul, 2020)
Since the management of infections becomes prior global healthcare issue, the "post antibiotic era" requires innovative and interdisciplinary approach. As an alternative to widespread and, nowdays mostly uneffective, ...
Synthesis and Characterization of Some Nitro-Substituted Phthalocyanines of Nickel(II), Cobalt(II) and Copper(II)
(Taylor & Francis, 1989)
Synthesis of the peripherally substituted (phthalocyaninato)metal derivatives (NO2)4PcM (M α Ni, Co, Cu; NO2 groups are in 1,8,15,22- or 2,9,16,23-positions) is described, and their X-ray powder diffraction patterns, ...
Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping
(Elsevier Sci Ltd, Oxford, 2019)
Highly ordered, anodically grown TiO2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping ( lt = 2 at.%) in the titanium oxide lattice. FESEM micrographs revealed ...
Factor space differentiation of brick clays according to mineral content: Prediction of final brick product quality
(Elsevier Science Bv, Amsterdam, 2015)
Chemical composition and XRD qualitative analysis were used to calculate mineral contents of 139 brick clay raw materials using LPNORM. The second order polynomial models (SOP) for all the samples, which express the relation ...
Surface modification of polyethylene by Ag+ and Au+ ion implantation observed by phase imaging atomic force microscopy
(Elsevier, 2012)
High density polyethylene (HDPE) has been modified by Ag+ and Au+ ion implantation with the energy of 60 and 200 keV, respectively. The doses of implanted silver and gold ions were as follows: 1 x 10(15), 5 x 10(15) and 1 ...
New optimality criteria for convex continuous-time problems of vector optimization
(Optimization, 2022)
In this paper, vector continuous-time programming problems with inequality type of constraints are considered. All the results are obtained under convexity assumptions. The main tool employed in the derivation of the zero ...
From mycelium to spores: A whole circle of biological potency of mosaic puffball
(Elsevier Science Bv, Amsterdam, 2019)
Methanol extracts of mosaic puffball (Handkea utriformis, Bovistella utriformis, Lycoperdon utriforme, Calvatia utriformis - current name is a subject of debate), from three different stages - mycelium (HUMIC), immature ...