Güncel Gönderiler: Fen Edebiyat Fakültesi
Toplam kayıt 731, listelenen: 81-100
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Six-Armed Structures Based on Benzene Ring, Synthesis and Characterization via Sonogashira Coupling
(Gadjah Mada Univ, Dept Chemistry, 2020)New six-armed compounds consist of benzene ring as a central core substituted with aromatic ring and three rod-like armed of 2-chloro-4,6-bis(dodecyloxy)-1,3,5-triazine as the peripheral arms unit which were obtained by ... -
Acetylene-bridged triazine pi-conjugated structures: synthesis and liquid crystalline properties
(Scientific Technical Research Council Turkey-Tubitak, 2019)We report the synthesis and liquid crystalline properties of a new type of tribranched compound built up from triazine as the central core and electron-rich triazine rings as peripheral groups. An equimolar mixture of the ... -
Radiological risk from activity concentrations of natural radionuclides: Cumulative Hazard Index
(Springer, 2021)The Cumulative Hazard Index method has been proposed for the first time to determine the low and high-risk levels of radionuclides. The significant radiological parameters and risk analyses for Ra-226, Th-232 and K-40 ... -
Synthesis and liquid crystalline properties of new triazine-based pi-conjugated macromolecules with chiral side groups
(Scientific Technical Research Council Turkey-Tubitak, 2020)In this study, we reported the synthesis of a new tribranched macromolecule liquid crystal with triazine in the centre. The central triazine core is bonded via sequences of Sonigashira coupling to 3 triazine unites through ... -
Ionic interaction of tri-armed structure based on benzene ring: synthesis and characterization
(Springer Wien, 2021)Liquid crystalline is a state of matter which combines the properties of liquid and a crystalline solid. Ionic liquid crystals are a new class of materials which exhibit phase transition at low temperature. A new structure ... -
Ti doped amorphous carbon (Al/Ti-a:C/p-Si/Al) photodiodes for optoelectronic applications
(Elsevier Science Bv, 2018)Electrochemical deposition technique was used to fabricate titanium doped amorphous carbon (Ti doped a:C) Al/Ti-a:C/p-Si/Al photodiode. The effects of illumination on the current voltage (I-V) characteristics of the ... -
Structural investigation and electronic band transitions of nanostructured TiO2 thin films
(Wiley-V C H Verlag Gmbh, 2011)Titanium dioxide (TiO2) thin film was deposited on n-Si (100) substrate by reactive DC magnetron sputtering system at 250 degrees C temperature. The deposited film was thermally treated for 3 h in the range of 400-1000 ... -
Special functions in transferring of energy; a specific case: Airy function
(Sila Science, 2012)Analysis of transferring of transient signals along time-harmonic waveguide modes consists of two main parts. The first one is a modal basis problem. The second one is a modal amplitude problem. Surplus of energy could be ... -
Active carbon/graphene hydrogel nanocomposites as a symmetric device for supercapacitors
(Taylor & Francis Inc, 2016)Activated carbons (ACs) are successfully synthesized from Elaeagnus grain by a simple chemical synthesis methodology and demonstrated as novel, suitable supercapacitor electrode materials for graphene hydrogel (GH)/AC ... -
The Christian Corsairs in the Mediterranean Before the Conquest of Rhodes (1499-1520)
(Ege Univ, 2020)The piracy should not be evaluated only as a plundering activity. It should be considered as a political, economic and social activity which includes different interest groups. The Christian corsairs who were active between ... -
Graphene Oxide/Poly(3-hexylthiophene) Nanocomposite Thin-Film Phototransistor for Logic Circuit Applications
(Springer, 2018)Graphene is a sheet-structured material that lacks a forbidden band, being a good candidate for use in radiofrequency applications. We have elaborated graphene-oxide-doped poly(3-hexylthiophene) nanocomposite to increase ... -
On the system of double equations with three unknowns d
(Semnan Univ, 2021)The system of double equations with three unknowns given by d + ay + bx + cx(2) = z(2), y + z = x(2) is analysed for its infinitely many non-zero distinct integer solutions. Different sets of integer solutions have been ... -
On ternary biquadratic Diophantine equation 11(x(2) - y(2))
(Bulgarian Acad Science, 2019)We obtain infinitely many non-zero integer triples (x, y, z) satisfying the non- homogeneous bi-quadratic equation with three unknowns 11(x(2) - y(2)) + 3(x+ y) = 10z(4). Various interesting properties among the values of ... -
Sparse polynomial interpolation with Bernstein polynomials
(Scientific Technical Research Council Turkey-Tubitak, 2021)We present an algorithm for interpolating an unknown univariate polynomial f that has a t sparse representation (t << deg(f) ) using Bernstein polynomials as term basis from 2t evaluations. Our method is based on manipulating ... -
DETERMINATION OF IMAZAMOX ((2-[4,5-DIHYDRO-4-METHYL-4-(1-METHYLETHYL)-5-OXO-1 H-IMIDAZOL-2-YL]-5-(METHOXYMETHYL)-3-PYRIDINECARBOXYLIC ACID) RESIDUE ON SUNFLOWER PLANT COMPONENTS
(Scibulcom Ltd, 2019)The research was completed in 2014 and 2015 under field conditions in Kirklareli that is located in the Thrace region of Turkey. The study researched the residue levels left on different components of the sunflower plant ... -
Modeling Superionic Behavior of Plutonium Dioxide
(Walter De Gruyter Gmbh, 2016)The Bredig transition to the superionic phase indicated with the.-peak in C-p was highly expected for plutonium dioxide (PuO2) as other actinide dioxides. However, least-square fit and local smoothing techniques applied ... -
Integral inequalities of Hermite-Hadamard type for exponentially subadditive functions
(Amer Inst Mathematical Sciences-Aims, 2020)In this paper, we introduce a new class of functions, which is called exponentially subadditive functions. We establish Hermite-Hadamard inequalities via exponentially subadditive functions. We also give some related ... -
A NOTE ON SPRAYS OF ISOTROPIC CURVATURE
(Editura Bibliotheca-Bibliotheca Publ House, 2021)A basic goal of this paper is to calculate, Weyl curvature of R-flat (Ricci-flat) spray of isotropic curvature and a locally projectively R-flat (Ricci-flat) spray, which is a projective invariance. Besides, the equivalents ... -
Analysis of the first four moderate geomagnetic storms of the year 2015
(Springer Heidelberg, 2021)This essay investigates the first four moderate geomagnetic activities (the 04 January storm, the 07 January storm, the 17 February storm, and the 24 February storm) of 2015 in the 24th solar cycle. The essay attempts to ... -
Zonal geomagnetic indices estimation of the two super geomagnetic activities of 2015 with the artificial neural networks
(Elsevier Sci Ltd, 2021)This paper discusses the estimation of zonal geomagnetic indices of two super geomagnetic activities of 2015 in the 24th solar cycle. It estimates the zonal geomagnetic indices (Dst, ap, AE) of 17 March and 22 June 2015 ...
