Başlık için Fen Fakültesi listeleme
Toplam kayıt 1146, listelenen: 1-20
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1,3-Dimethyl-5-(3,4,5-tris(alkoxy)benzoyl) barbituric acid derivatives and their liquid crystalline difluoroboron complexes: Synthesis, characterization and comparative investigations of mesomorphic, thermotropic and thermo-morphologic properties
(Elsevier, 2014)A series of 1,3-dimethyl-5-(3,4,5-tris(alkoxy)benzoyl) barbituric acid derivatives 1a-4a with various chain length were synthesized by our group for the first time through the addition of 1,3-dimethyl barbituric acid to ... -
2-and 1-D coordination polymers of Dy(III) and Ho(III) with near infrared and visible luminescence by efficient charge-transfer antenna ligand
(Elsevier Science Bv, 2017)Two new lanthanide-based coordination complexes, [Dy(2-stp).2(H2O)]n (1) and {[Ho(2-stp).3(H2O)]center dot(H2O)}(n) (2) [2-stp = 2-sulfoterephthalic acid] were synthesized by hydrothermal reaction and characterized by ... -
24-Epibrassinolide ameliorates the effects of boron toxicity on Arabidopsis thaliana (L.) Heynh by activating an antioxidant system and decreasing boron accumulation
(Springer Heidelberg, 2016)Brassinosteroids (BRs) play a significant role in alleviating the negative effects of various environmental stresses and in promoting the growth and development of plants. In this study, we investigated the effects of ... -
3D Porous Ti3C2 MXene/NiCo-MOF Composites for Enhanced Lithium Storage
(Mdpi, 2020)To improve Li storage capacity and the structural stability of Ti3C2 MXene-based electrode materials for lithium-ion batteries (LIBs), a facile strategy is developed to construct three-dimensional (3D) hierarchical porous ... -
4,4- bipiridin ve 2-amino-1,4-benzendikarboksilik asit tabanlı yeni bileşiğin sentezlenmesi ve hidrojen bağlı 3D polimerik yapısı
(2018)Yeni bileşik, [NH2-BDC][4,4-bpy], (NH2-BDC = 2-amino-1,4-benzen dikarboksilik asit, 4,4-bipy = 4,4-bipiridin) sentezlendi ve tek kristal X-ışını kırınım metodu ile karakterize edildi. Kristalin yapısal analizi bileşiğin ... -
4-Butoxy-N '-[1-(4-methylphenyl)ethyl-idene]benzohydrazide
(Int Union Crystallography, 2012)The molecule of the title compound, C20H24N2O2, exists in a trans conformation with respect to the C N bond. The dihedral angle between the benzene rings is 79.0 (1)degrees. In the crystal, N-H center dot center dot center ... -
4-Hydroxy-N'-[(1E)-1-(4-methylphenyl)ethylidene]benzohydrazide: Synthesis, crystal structure, and spectroscopic studies
(Pleiades Publishing Inc, 2013)The titled compound has been synthesized by reaction of 4'-methylacetophenon with 4-hydrox-ybenzohydrazide in presence of catalytic amount of glacial acetic acid. The compound is characterized by elemental analysis, IR, ... -
Abietane diterpenoids as butyrylcholinesterase inhibitors from Salvia species
(Georg Thieme Verlag Kg, 2012)Salvia (sage) species have been used as medicinal plants since ancient times in the treatment of cold, sore throat, tuberculosis, angina pectoris, stomache ache, and menstrual disorders and they have been known as sedative, ... -
Accumulation of Metals and Metalloids in Aegean Chub, Inhabiting in Two Middle Sized Streams in Southwest Anatolia
(Central Fisheries Research Inst, 2017)Essential and non-essential total eleven metals and metalloids (Al, B, Cr, Co, Cd, Cu, Fe, Pb, Mn, Ni and Zn) concentrations were determined by ICP-AES in muscle of Squalius fellowesii (Gunther, 1868), between November of ... -
Accumulation of poly-$beta$-hydroxybutyrate in Streptomyces species during growth with different nitrogen sources
(2002)Farklı taksonomik özelliklere sahip 27 Streptomyces izolatında Poly-?-hydroxybutyric asit (PHB) birikimi araştırıldı. Sentezlenen PHB miktarı krotonik asit olarak spektrofotometre ile belirlendi. Denenen izolatların %80’i ... -
Adaptive kernel density estimation with generalized least square cross-validation
(Hacettepe Univ, Fac Sci, 2019)Adaptive kernel density estimator is an efficient estimator when the density to be estimated has long tail or multi-mode. They use varying bandwidths at each observation point by adapting a fixed bandwidth for data. It is ... -
Adaptive Weighted Performance Criterion for Artificial Neural Networks
(Ieee, 2018)Extended Weighted Performance Criterion (EWPC) which is motivated from Weighted Information Criterion (WIC) has been shown promising results in previous study and results of the application showed that EWPC is capable of ... -
The Addition of Opuntia ficus-indica Ethanolic Extract to a Skimmed Milk-Based Extender Impacts Ram Sperm Quality
(PMC, 2023)Recently, researchers have focused on the use of natural antioxidants to improve semen quality as a key element for successful artificial insemination. In this context, the first aim of this study was to determine the ... -
An adjustment degree of fitting on fuzzy linear regression model toward manufacturing income
(Institute of Advanced Engineering and Science, 2023)The regression analysis is a common tool in data analysis, while fuzzy regression can be used to analyze uncertain or imprecise data. Manufacturing companies often having difficulty predicting their future income. Thus, a ... -
Adjuvant composite cold atmospheric plasma therapy increases antitumoral effect of doxorubicin hydrochloride
(PMC, 2023)Introduction: Cancer is a global health concern, with a significant impact on mortality rates. Despite advancements in targeted antitumor drugs, the development of new therapies remains challenging due to high costs and ... -
Admittance and impedance spectroscopy on Cu(In,Ga)Se2 solar cells
(2003)The present work reports some experimental results on the electrical properties of high efficiency ZnO/CdS/Cu(In,Ga)Se2 heterojunction solar cells. Admittance spectroscopy has been employed for characterisation of the bulk ... -
Adsorption kinetics of maxilon yellow 4GL and maxilon red GRL dyes on kaolinite
(Elsevier Science Bv, 2009)Kaolinite, a low-costly material, is the most abundant phyllosilicate mineral in highly weathered soils. in this work, the adsorption kinetics of maxilon yellow 4GL (MY 4GL) and maxilon red GRL (MR GRL) dyes on kaolinite ... -
Adsorption of a textile dye onto activated sepiolite
(Elsevier, 2009)Adsorption of Remazol red B (RRB) on thermal activated sepiolite (TAS) and acid activated sepiolite (AAS) from aqueous solutions was investigated at different parameters, such as, adsorbent type, temperature, contact time ... -
Adsorption of ammonium from an aqueous solution by fly ash and sepiolite: Isotherm, kinetic and thermodynamic analysis
(Elsevier, 2011)This study aimed to remove ammonium from paper mill industry (4500 m(3) h(-1)) wastewater, which is discharged to sea from a plant located in the western Turkey. As adsorbent, fly ash, raw sepiolite and thermal activated ...