Güncel Gönderiler: Fen Edebiyat Fakültesi
Toplam kayıt 2856, listelenen: 681-700
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On cosymplectic-like statistical submersions
(Springer Basel AG, 2019)We study cosymplectic-like statistical submersions. It is shown that for a cosymplectic-like statistical submersion, the base space is a Kahler-like statistical manifold and each fiber is a cosymplectic-like statistical ... -
New fixed-point theorems on an S-metric space via simulation functions
(MDPI, 2019)In this paper, we prove new fixed-point theorems using the set of simulation functions on an S-metric space with some illustrative examples. Our results are stronger than some known fixed-point results. Furthermore, we ... -
Methodological and theoretical approaches to material culture in folklore
(Milli Folklor Dergisi, 2019)Material culture, centered on objects to understand social and cultural relations of societies, focuses on what objects are made of, what methods and technics are used in the making and who makes them. Through objects, ... -
Magnetic nanocomposites decorated on multiwalled carbon nanotube for removal of Maxilon Blue 5G using the sono-Fenton method
(Nature Publishing Group, 2019)Herein, multiwalled carbon nanotube-based Fe3O4 nano-adsorbents (Fe3O4@MWCNT) were synthesized by ultrasonic reduction method. The synthesized nano-adsorbent (Fe3O4@MWCNT) exhibited efficient sonocatalytic activity to ... -
ESR spectroscopic investigation of gamma-irradiated lithium trifluoromethanesulfonate
(Taylor and Francis Ltd, 2019)The effect of gamma radiation on lithium trifluoromethanesulfonate (LiTf) was investigated in detail using electron spin resonance (ESR) spectroscopy. The experimental spectra consisted of complex overlapped signals. ... -
Equilibrium, kinetics, and thermodynamic of adsorption of enzymes on diatomite clay materials
(Springer, 2019)In adsorption experiments, enzymes and diatomite clay minerals that have been used lately are of great importance due to their biological and physicochemical properties. For this purpose, in this study, the adsorption and ... -
Emulsification liquid-liquid microextraction method based on a deep eutectic solvent for separation and preconcentration of lead from environmental water samples
(Iwa Publishing, 2019)In this paper, a novel emulsification liquid-liquid microextraction method based on deep eutectic solvents (DESs) for the preconcentration of lead from water samples and its determination by flame atomic absorption ... -
Direct theorems of trigonometric approximation for variable exponent Lebesgue spaces
(Union Matematica Argentina, 2019)Jackson type direct theorems are considered in variable exponent Lebesgue spaces L-p(x) with exponent p(x) satisfying 1 <= ess inf(x is an element of[0,2 pi]) p(x), ess sup(x is an element of[0,2 pi]) p(x) < infinity, and ... -
Development of carbazole-bearing pyridopyrimidine-substituted urea/thiourea as polyphenol oxidase inhibitors: synthesis, biochemistry, and theoretical studies
(Taylor and Francis Ltd, 2019)Polyphenol oxidase (Tyrosinase, PPO) has received considerable attention, since it is the key enzyme in melanin biosynthesis. In this study, we investigated prepared novel carbazole-containing pyridopyrimidine-substituted ... -
C-parallel and c-proper slant curves of S-manifolds
(Univ Nis, 2019)In the present paper, we define and study C-parallel and C-proper slant curves of S-manifolds. We prove that a slant curve gamma in an S-manifold of order r >= 3, under certain conditions, is C-parallel or C-parallel in ... -
Complete rewriting system and growth series for extended generalized hecke groups
(Islamic Azad Univ, 2019)In this paper, we obtain a complete rewriting system for monoid presentation of generalized extended Hecke group (H) over bar (p,q), which is firstly defined in [8]. It gives an algorithm for getting normal form of elements ... -
Chen inequalities for statistical submanifolds of Kahler-Like statistical manifolds
(MDPI, 2019)We consider Kahler-like statistical manifolds, whose curvature tensor field satisfies a natural condition. For their statistical submanifolds, we prove a Chen first inequality and a Chen inequality for the invariant delta(2,2). -
Approximation by nonlinear fourier basis in generalized holder spaces
(Yildiz Technical Univ, 2019)In this paper, the value of deviation of a function f from its nth generalized de la Vallee-Poussin mean V-n(alpha)(lambda, f) with respect to the nonlinear trigonometric system is estimated for the classes of 2 pi-periodic ... -
An examination of the GaInP/GaInAs/Ge triple junction solar cell with the analytical solar cell model
(Polish Acad Sciences Inst Physics, 2019)The photovoltaic energy is one of the most popular topics of research in the field of clean energy sources. It benefits directly from the sun, and has been accepted as a promising technology for the future. To this end, ... -
A novel triazine-bearing calix[4]arene: Design, synthesis and gas sensing affinity for volatile organic compounds
(Pergamon-Elsevier Science Ltd, 2019)A novel triazine-calix[4]arene conjugate was designed and synthesized with the aim to study gas sensing against volatile organic compounds (VOCs) such as dichloromethane, chloroform and carbon tetrachloride. This novel ... -
Inhibition of paraoxonase 1 by coumarin-substituted N-heterocyclic carbene silver(I), ruthenium(II) and palladium(II) complexes
(Wiley, 2019)We synthesized three coumarin-substituted benzimidazolium chlorides and their silver(I), ruthenium(II) and palladium(II) N-heterocyclic carbene (NHC) complexes. All compounds were characterized using appropriate spectroscopic ... -
Assessment of sequential extraction methods for the prediction of bioavailability of elements in plants grown on agricultural soils near to boron mines in Turkey
(Elsevier Science BV, 2019)Two sequential extraction methods (BCR sequential extraction method and a newly proposed sequential extraction method) were used to evaluate the bioavailability of the elements from the contaminated soils to different ... -
Characterizations of binary fecr (AISI 430) thin films deposited from a single magnetron sputtering under easy controllable deposition parameters
(Springer, 2019)A series of 50-nm binary FeCr martensitic thin films were sputtered from a single source made of commercial AISI 430 ferritic stainless steel under the deposition rates gradually increased from 0.03 to 0.11nm/s with 0.02nm/s ... -
Voltammetric determination of molybdenum using polymer film modified pencil graphite electrodes
(Taylor & Francis Inc, 2019)A new indirect voltammetric method for the determination of molybdenum in water samples and food supplements using various polymer film modified pencil graphite electrodes (PFMPGEs) was described. Poly Eriochrome black T ... -
Common surface structures of graphene and Au(111): The effect of rotational angle on adsorption and electronic properties
(Amer Inst Physics, 2019)Graphene adsorption on the Au(111) surface was explored to identify its common surface structures by means of van der Waals corrected density functional theory calculations. The alignment of graphene in the form of certain ...
