Güncel Gönderiler: WoS İndeksli Yayınlar Koleksiyonu
Toplam kayıt 372, listelenen: 241-260
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The effects of heat treatment on the synthesis of nickel ferrite (NiFe2O4) nanoparticles using the microwave assisted combustion method
(Elsevier, 2015)NiFe2O4nanoparticles were synthesized using the microwave assisted combustion method based on metal nitrate salts and urea. To remain of organic matters and to stabilize the particles, samples were thermally treated at ... -
Numerical modeling of cold powder compaction using multi particle and continuum media approaches
(Elsevier, 2015)Numerical analysis of powder compaction process requires multi-particle modeling approach as continuum models fail to simulate the nature of process (e.g. interparticle, and particle-die interactions), accurately. This ... -
Effect of Er doping on the superconducting properties of porous MgB2
(Indian Academy of Sciences, 2015)MgB2 bulk sample with porous structure was produced by using the in-situ solid-state reaction method under argon (Ar) atmosphere of 10 bar. Elemental Er in powder form was doped into MgB2 with different compositions ... -
Evaluation of polycyclic aromatic hydrocarbons in Circassian cheese by high-performance liquid chromatography with fluorescence detection
(Academic Press Inc., 2015)Polycyclic aromatic hydrocarbons (PAH) in traditional/industrial smoked and unsmoked Circassian cheeses available in Turkish markets were analysed using solid-phase extraction, followed by high-performance liquid chromatography ... -
Thermoeconomic optimization of gas turbine cogeneration plants
(Elsevier Ltd, 2015)In this study, a novel thermoeconomic optimization method that is simple and efficient, for real complex cycles is introduced. First, a thermoeconomic analysis method that is called non-linear simplex direct search method ... -
Direct and fast growth of GaAs thin films on glass and polyethylene terephthalate substrates using a thermionic vacuum arc
(Springer New York LLC, 2015)Using a thermionic vacuum arc, single?crystal gallium arsenide (GaAs) layers of micron thickness were grown on PET and glass substrates in 2 min. We present a new deposition mechanism and parameters for GaAs thin films ... -
Optimum design of composite steel frames with semi-rigid connections and column bases via genetic algorithm
(Techno Press, 2015)A genetic algorithm-based minimum weight design method is presented for steel frames containing composite beams, semi-rigid connections and column bases. Genetic Algorithms carry out optimum steel frames by selecting ... -
Optimum design of steel frames with semi-rigid connections and composite beams
(Techno Press, 2015)In this paper, an optimization process using Genetic Algorithm (GA) that mimics biological processes is presented for optimum design of planar frames with semi-rigid connections by selecting suitable standard sections from ... -
Thermoeconomic analyses of steam injected gas turbine cogeneration cycles
(Polish Academy of Sciences, 2015)In this study, three different gas turbine cogeneration systems that are preheating air, preheating air-fuel and simple cycles where steam injected in to combustion chamber are analyzed. The effects of steam injection on ... -
A new frost salt scaling mechanism for concrete pavements based on brine rejection from ice layer adhered to concrete surface
(Taylor and Francis Ltd., 2015)In cold regions, highways, airfields or sidewalks are exposed to de-icing agents to thaw the ice layer on pavement surface. In this situation, a progressive surface damage that pulls off flaky chips from concrete pavement ... -
MAC protocols for energy harvesting wireless sensor networks: Survey
(ETRI, 2015)Energy harvesting (EH) technology in the field of wireless sensor networks (WSNs) is gaining increasing popularity through removing the burden of having to replace/recharge depleted energy sources by energy harvester ... -
Investigation of an alternative fuel for diesel engines
(Polish Academy of Sciences, 2015)Internal combustion engines use generally fossil fuel products. World resources of it is limited. Renewable alternative energy sources are getting important solution for energy demand. Hazelnut oil ethyl ester is obtained ... -
Some new records and one new species of the genus Lebertia Neuman (Acari: Hydrachnidia: Lebertiidae) from Turkey
(Turkiye Klinikleri Journal of Medical Sciences, 2015)In this study, water mites of the genus Lebertia Neuman, 1880 (Acari: Hydrachnidia) collected from Antalya, Artvin, Bingöl, Erzurum, Kahramanmaras, and Siirt provinces of Turkey are presented. In total, 12 species were ... -
Impact of the exopolysaccharide layer on biofilms, adhesion and resistance to stress in Lactobacillus johnsonii FI9785
(BioMed Central Ltd., 2015)Background: The bacterial cell surface is a crucial factor in cell-cell and cell-host interactions. Lactobacillus johnsonii FI9785 produces an exopolysaccharide (EPS) layer whose quantity and composition is altered in ... -
GaN thin film deposition on glass and PET substrates by thermionic vacuum arc (TVA)
(Elsevier Ltd, 2015)In this paper, GaN thin film production was realized by thermionic vacuum arc (TVA), a plasma deposition technique, for the first time. We present a new deposition mechanism for GaN thin films with a very short production ... -
A study on optical, morphological and mechanical properties of Al2O3 ultra-thin films deposited by RF reactive magnetron sputtering
(Inderscience Enterprises Ltd., 2015)The Al2O3 ultra-thin films with the thicknesses of 30 nm and 35 nm were deposited on glass microscope slides by a radio frequency reactive magnetron sputtering system. The optical, morphological and mechanical properties ... -
The Effect of pH and Temperature on Cabbage Volatiles During Storage
(Blackwell Publishing Inc., 2015)During storage of shredded cabbage, characteristic sulfurous volatile compounds are formed affecting cabbage aroma both negatively and positively. Selected ion flow tube-mass spectrometry (SIFT-MS) was used to measure the ... -
Soil stabilization with using waste materials against freezing thawing effect
(Polish Academy of Sciences, 2015)Freezing-thawing processes hapenning in seasonally cold climate cause deformation of soil in time of freezing and strength loss while thawing. Problems of ground frost heave and soil softening belong to the important ... -
Investigation of Comet Wild-2 in terms of effective atomic numbers
(Elsevier Ltd, 2015)Effective atomic numbers (Zeff) and effective electron densities (Nel) of 69 samples collected from Comet Wild-2 within scope of Stardust mission were determined in the energy range from 1 keV to 100 GeV. The data were ... -
Genotoxic and antigenotoxic potentials of two Usnea species
(2015)For ages, lichens have long been investigated popularly for biological roles, mainly antitumor, antimicrobial and antioxidant activities. Many positive results were obtained in these previous research. Thus, in this study, ...