Başlık için Fen Edebiyat Fakültesi listeleme
Toplam kayıt 673, listelenen: 91-110
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Characterization of trap centers in Gd2O3 nanoparticles by low temperature thermoluminescence measurements
(Elsevier GmbH, 2018)Trapping centers in Gd2O3 nanoparticles were investigated using thermoluminescence (TL) measurements in the below room temperature region of 10–280 K. Seven peaks having peak maximum temperatures between 30 and 252 K were ... -
Chromate-selective electrodes prepared by using calix[4]arenes for the speciation of Cr(VI) and Cr(III)
(Institute for Ionics, 2017)The calix[4]arene and its mono-, di-, tri-, and tetra-acryloyl esters were used as suitable ionophores for Cr(VI) species to develop poly(vinyl chloride) (PVC) membrane electrodes. The influence of membrane contents and ... -
Co-substitution of zirconium and neodymium on hyperfine interactions and AC susceptibility of SrFe12O19 nanohexaferrites
(Chinese Society of Rare Earths, 2019)This study presents the influence of Zn and Nd co-substitution on structure, morphology, AC suscepti-bility and ZFC-FC magnetizations of Sr nanohexaferrites (NHFs), SrFe12xðZn;NdÞxO19(0.0 x 1.0),which was produced by sol-gel ... -
CO2 gas detection properties of a TIO2/Al2O3 heterostructure under UV light irradiation
(Institute of Physics Publishing, 2015)Al/TiO2/p-Si and Al/TIO2/Al2O3/p-Si samples were prepared using the atomic layer deposition method (ALD) and their gas sensing properties were investigated. The electrical properties of the samples were studied using a two ... -
Coal an impure fuel source: Radiation effects of coal-fired power plants in Turkey
(Hacettepe Üniversitesi, 2010)Turkish coal is generally poor quality and the levels of chemical and radiological toxic trace elements in it are higher with respect to mean values of activity concentrations given in United Nations Scientific Committee ... -
Combined experimental and theoretical investigation of characterization and hydrogen storage properties of Zn(II) based complex and composites
(Elsevier Ltd, 2015)Metal organic structured coordination complex was synthesized by using Zn(II), 1,10 Phenantroline and teraphtalic acid building blocks. Then the synthesized compound have been characterized with Ft-IR, TGA/DTA/DrTGA, EA, ... -
A comparative examination of mono- and bis-chelate salicylatoborate complexes and the crystal structure of layered magnesium bis-salicylatoborate
(2011)Complexes of boric acid with sodium- and magnesium-salicylates were prepared and analyzed to examine the structural consequences resulting from the coordination of the salicylate ligand in mono- and bis-chelate modes. The ... -
A comparative study of the dielectric properties of Al/p-Si structures with 50 and 826 angstrom SiO2 interfacial layer
(2011)Dielectric properties and ac electrical conductivity (σac) of Al/p-Si structures with 50 Ǻ (MIS) and 826 Ǻ (MOS) interfacial insulator layer (SiO2) have been investigated in the frequency range of 10 kHz-2 MHz using the ... -
Comparison of three-dimensional facial morphology between upright and supine positions employing three-dimensional scanner from live subjects
(Elsevier B.V., 2017)Facial soft tissue thicknesses (FSTT) measurements collected from Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) imaging techniques are most commonly taken in the supine position for forensic craniofacial ... -
Computation of Eigenfunctions of Nonlinear Boundary-Value -Transmission Problems by Developing Some Approximate Techniques
(SOC PARANAENSE MATEMATICA, 2023)In this study, we investigate a boundary value problem for nonlinear Sturm-Liouville equations with additional transmission conditions at one interior singular point. Known numerical methods are intended for solving initial ... -
Computational Insight into Conformational Rearrangement and Intramolecular-H Bond Analysis of Some Calix[4]Arenes Including Acryloyl Moiety
(2019)The conformational analyses of Calix[4]arenes reveals four different stable structures (conformations); Cone, Partial Cone, 1,2-Alternate and 1,3-Alternate after employing a density functional theory (DFT) computational ... -
Contribution to the knowledge of Turkish stoneflies with annotated catalogue (Insecta: Plecoptera)
(Magnolia Press, 2016)The stoneflies of Turkey are reviewed providing all known distributions and including new records. Additionally, ecological and biogeographical notes are given. The genus Taeniopteryx Pictet 1841 is reported from Turkey ... -
Contributions to the knowledge of mammals in Çorum Province, Turkey
(Hitit University, 2017)A total of 42 mammal species were determined and new records reported for the first time in Çorum Province, Turkey. Field studies were carried between 2009-2010 and 2015-2016. One species of hedgehog and shrew, ... -
Correlation between chemical composition, electrical, magnetic and microwave properties in Dy-substituted Ni-Cu-Zn ferrites
(Elsevier, 2021)Dy3+ ion-substituted nanoferrites Ni0.4Cu0.2Zn0.4Fe2_ xDyxO4 (x <= 0.04) were produced via sol-gel method. Correlation between chemical composition, crystal structure, electrical, magnetic and microwave properties was ... -
Crystal structure of rac-3-hydroxy-2-(p-tolyl)-2,3,3a,4,7,7a-hexahydro-1H-4,7-methanoisoindol-1-one
(International Union of Crystallography, 2015)In the title compound, C16H17NO2, the cyclohexene ring adopts a boat conformation, and the five-membered rings have envelope conformations with the bridging atom as the flap. Their mean planes are oriented at a dihedral ... -
Crystal structures and intermolecular interactions of two novel antioxidant triazolyl-benzimidazole compounds
(Maik Nauka-Interperiodica Publishing, 2015)The crystal structures of 5-(2-(p-chlorophenylbenzimidazol-1-yl-methyl)-4-(3-fluorophenyl)-2,4-dihydro-[1,2,4]-triazole-3-thione (G6C) and 5-(2-(p-chlorophenylbenzimidazol-1-yl-methyl)-4-(2-methylphenyl)-2,4-dihydro-[1,2 ... -
Cu-Al-Mn shape memory alloy based Schottky diode formed on Si
(Elsevier B.V., 2019)In this work, martensite was made over the wide temperature ranges and the two forms of martensite mor-phology in Cu85.41Al9.97Mn4.62shape memory alloy (SMA) were β′and γ′martensite phases. The SMA wascharacterized by the ... -
Cytogenetic studies on quercus l. (fagaceae) species belonging to ilex and cerris section in Turkey
(2011)A detailed karyotype analyses of the five species of Quercus L. (Q. coccifera L., Q. ilex L., Q. aucheri Jaub. and Spach, Q. cerris L. and Q. ithaburensis Decne subsp. macrolepsis (Kotschy) Hedge and Yalt.) belonging to ... -
Cytogenetics Analyses of The Genus Spermophilus Cuvier 1825 (Mammalia Rodentia) Distributed in Turkey
(Parlar Scientific Publications (P S P), 2021)Cytogenetic analysis were studied on three species of the genus Spermophilus distributed in Turkey (S. citellus, S. xanthoprymnus and S. taurensis). Different chromosomal features occurring in different subpopulations of ... -
Çankırı-Çorum-Amasya hattı üzerindeki Hitit yerleşimlerinin lokalizasyon sorunlarıyla ilgili genel bir değerlendirme
(Hitit Üniversitesi, 2018)Son yıllarda Hititler Dönemi Anadolu’nun tarihi coğrafyası ile ilgili değerli araştırmalar yapılmış ve bu yöndeki çalışmalar artış göstermiştir. Bu çalışmalarda ortaya konulan yeni görüşler ve isabetli lokalizasyon önerileri, ...