Güncel Gönderiler: Scopus İndeksli Yayınlar Koleksiyonu
Toplam kayıt 570, listelenen: 261-280
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The effect of digital badges specialization level of the subject on the achievement, satisfaction and motivation levels of the students
(Sakarya University, 2016)Digital badges are the components demonstrating competency and knowledge of the learners. The use of digital badges used to reflect the skills of learners is becoming increasingly widespread in the teaching environments. ... -
Effect of external magnetic field on valence-electron structures of Fe and Ni in Invar, Permalloy and the other Fe-Ni alloys by using K?-to-K? X-ray intensity ratios
(Elsevier Ltd, 2016)The effect of external magnetic field on the valence-electron structures of Fe and Ni in various Fe-Ni alloy compositions was investigated by using X-ray fluorescence spectroscopy. K?-to-K? X-rayin-tensity ratios of Fe and ... -
The effects of fuel type in synthesis of NiFe2O4 nanoparticles by microwave assisted combustion method
(Institute of Physics Publishing, 2016)In this study, it was investigated the effects of the used fuels on structural, morphological and magnetic properties of nanoparticles in nanoparticle synthesis with microwave assisted combustion method with an important ... -
Medium access control protocols for wireless sensor networks with ambient energy [Kablosuz Algilayici A?larda Ortam Enerjisi Kullanan Ortam Erişim Protokolleri]
(Institute of Electrical and Electronics Engineers Inc., 2016)Wireless sensor networks (WSNs) have recently been a popular research area with a broad range of applications. One of the most significant constraints of WSNs is energy limitation of sensor nodes. Therefore, energy-efficiency ... -
Optimum design of steel space frames under earthquake effect using harmony search
(Techno Press, 2016)This paper presents an optimization process using Harmony Search Algorithm for minimum weight of steel space frames under earthquake effects according to Turkish Earthquake Code (2007) specifications. The optimum designs ... -
Experimental determination of Drucker-Prager yield criterion parameters for normal and high strength concretes under triaxial compression
(Elsevier Ltd, 2016)In this study, parameters which define Drucker-Prager yield criterion were investigated experimentally for both normal strength concrete (NSC) and high strength concrete (HSC) by triaxial compression tests. Total 16 concrete ... -
Effect of laser irradiation on activation energy, irreversibility field and upper critical magnetic field of bulk MgB2 superconductor
(Springer New York LLC, 2016)In this study, the role of laser irradiation on the upper critical field (Hc2), the irreversibility field (Hirr) and the activation energy (U0) of bulk MgB2 superconductor was first time investigated with the aid of ... -
Optical, structural, morphological and compositional characterization of a Co-doped GaAs semiconducting thin film produced by thermionic vacuum arc
(Elsevier Ltd, 2016)A 80 nm 2 at% Co-doped GaAs thin film was deposited on a glass substrate under a high vacuum condition by means of the thermionic vacuum arc technique using GaAs and Co pellets as source materials. Tools and techniques ... -
A receding contact problem between a functionally graded layer and two homogeneous quarter planes
(Springer-Verlag Wien, 2016)In this paper, the plane problem of a frictionless receding contact between an elastic functionally graded layer and two homogeneous quarter planes is considered when the graded layer is pressed against the quarter planes. ... -
On the boundedness of a B-Riesz potential in the generalized weighted B-Morrey spaces
(Walter de Gruyter GmbH, 2016)We consider the generalized shift operator associated with the Laplace-Bessel differential operator ? B = i=1 n 2 x i 2 +i=1 k ? i x ix i .$ \Delta -{B}=\sum -{i=1}^{n}\frac{\partial ^2 }{\partial x-i^2} +\sum -{i=1}^{k} ... -
Novel glazing technologies to mitigate energy consumption in low-carbon buildings: A comparative experimental investigation
(John Wiley and Sons Ltd, 2016)Buildings play a key role in total world energy consumption as a consequence of poor thermal insulation characteristics of facade materials. Among the elements of a typical building envelope, windows are responsible for ... -
Effect of different processes on lamellar-free ultrafine grain formation, room temperature superplasticity and fracture mode of Zn-22Al alloy
(Elsevier Ltd, 2016)The Zn-22 wt.%Al was processed using five different selected routes including thermal, thermo-mechanical and severe plastic deformation (SPD) techniques in order to produce ultrafine grained (UFG) microstructure for achieving ... -
An experimental study on the ultra-fine grinding of gypsum ore in a dry ball mill
(Elsevier B.V., 2016)Gypsum is a crystalline form of hydrated calcium sulfate (CaSO4·2H20) generally used in cements and plasters in the construction industry, though also in paints, fertilizers, medicines, papers, and textiles. For use in ... -
Morphological and optical comparison of the Si doped GaN thin film deposited onto the transparent substrates
(Institute of Physics Publishing, 2016)The aim of this paper is to expand the body of knowledge about the silicon doped gallium nitride thin films deposited on different substrates. The physical properties of the Si doped GaN thin films deposited on the glass ... -
Embedding analogical reasoning into 5E learning model: A study of the solar system
(Modestum LTD, 2016)The purpose of this study was to investigate how the 5E learning model affects learning about the Solar System when an analogical model is utilized in teaching. The data were gathered in an urban middle school 7th grade ... -
Some physical properties of Co-doped GaAs thin films grown by thermionic vacuum arc
(American Institute of Physics Inc., 2016)Cobalt doped GaAs thin films with the thickness of 100 nm and 200 nm were deposited on glass substrates by a thermionic vacuum arc system. The optical and surface properties were investigated as functions of the film ... -
Investigation of the thickness effect to impedance analysis results AlGaN acoustic sensor
(American Institute of Physics Inc., 2016)In this study, AlGaN acoustic sensors were deposited on aluminum metal substrate by thermionic vacuum arc (TVA) method, for the first time. Impedance analyses of the fabricated acoustic sensors were investigated for the ... -
Impedance analysis of nano thickness layered AlGaN acoustic sensor deposited by thermionic vacuum arc
(American Institute of Physics Inc., 2016)In this study, AlGaN acoustic sensor was deposited on aluminum metal substrate by thermionic vacuum arc (TVA) method for the first time. Gallium materials are used in many applications for optoelectronic device and ... -
Investigation of the surface free energy of the ITO thin films deposited under different working pressure
(American Institute of Physics Inc., 2016)This study discusses the influence of working pressure on the surface energy of the ITO thin films produced by radio frequency magnetron sputtering method. Optical tensiometer (Attension Theta Lite) is used for evaluating ... -
In vitro inhibitory effects of palonosetron hydrochloride, bevacizumab and cyclophosphamide on purified paraoxonase-I (hPON1) from human serum
(Elsevier B.V., 2016)In this study, we investigated the effects of the drugs, palonosetron hydrochloride, bevacizumab and cyclophosphamide, on human serum paraoxonase-I (hPON1) enzyme activity in in vitro conditions. The enzyme was purified ...