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Toplam kayıt 4137, listelenen: 3491-3500
Phragmites australis as a new cellulose source: Extraction, characterization and adsorption of methylene blue
(ELSEVIER, 2020)
The aim of this study was to investigate potential use of Phragmites australis in the production of cellulose microfibrils with chemical extraction process. Characterization of the natural P. australis and extracted fibrils ...
Procion Green H-4G immobilized poly(hydroxyethylmethacrylate/chitosan) composite membranes for heavy metal removal
(Elsevier Science Bv, 2003)
The effective removal of toxic heavy metals from environmental samples still remains a major topic of present research. Metal-chelating membranes are very promising materials as adsorbents when compared with conventional ...
Structural and computational characterization of 4 ',4 ',6 ',6 '-tetrachloro-3-(2-methoxyethyl)-3H,4H-spiro-1,3,2-benzoxaza phosphinine-2,2 '-[1,3,5,2,4,6]triazatriphosphinine
(Elsevier, 2016)
In this study a new monospirocyclic phosphazene derivative, 4',4',6',6'-tetrachloro-3-(2-methoxyethyl)3H,4H-spiro [1,3,2-benzoxazaphosphinine-2,2'- [1,3,5,2,4,6] triazatriphosphinine] (SP1) was synthesized from the reaction ...
Cytotoxicity and apoptotic effects of nickel oxide nanoparticles in cultured HeLa cells
(Via Medica, 2010)
The aim of this study was to observe the cytotoxicity and apoptotic effects of nickel oxide nanoparticles on human cervix epithelioid carcinoma cell line (HeLa). Nickel oxide precursors were synthesized by an nickel ...
The effect of Al3+ concentration on the properties of alumina powders obtained by reaction between aluminium sulphate and urea in boiling aqueous solution
(Elsevier Sci Ltd, 2002)
Homogeneous precipitation of alumina precursors was carried out in boiling aqueous solutions that contained excess urea and 0.010 0.200 M Al3+. The obtained precursor precipitates were dried for 2 h at 100 C to yield ...
Eco-Friendly Synthesis and Characterization of Reduced Graphene Oxide
(Iop Publishing Ltd, 2017)
Graphene is a single sheet of sp(2) bonded carbon having a two-dimensional (2D) layer. It has remarkable electronic, mechanical and thermal properties. In this paper, the graphene oxide (GO) was reduced by reducing chemicals ...
Dimethylammonium bis(3-oxido-naphthalene-2-carboxylato)borate hemihydrate
(Wiley-Blackwell, 2008)
The title compound, C2H8N+center dot C(22)H(12)BO6(-)center dot 0.5H(2)O, was synthesized under atmospheric conditions in the presence of dimethylformamide acting as a template. The structure is composed of [NH2(CH3)2](+) ...
Approximation properties of Szasz-Mirakyan operators preserving exponential functions
(Springer, 2019)
This paper is a natural continuation of Acar et al. (Mediterr J Math 14:6, 2017, 10.1007/s00009-016-0804-7) where Szasz-Mirakyan operators preserving exponential functions are defined. As a first result, we show that the ...
A new approach to Bertrand curves in Euclidean 3-space
(SPRINGER BASEL AG, 2020)
In this article, a new approach is given for Bertrand curves in 3-dimensional Euclidean space. According to this approach, the necessary and sufficient conditions including the known results have been obtained for a curve ...
On approximation properties of certain multidimensional nonlinear integrals
(Int Scientific Research Publications, 2016)
We prove theorems on convergence of multidimensional nonlinear integrals in Lebesgue points of generated function, and show that the main results are applicable to a wide class of exponentially nonlinear integral operators, ...