Güncel Gönderiler: DSpac@Bayburt: Bayburt University Institutional Repository
Toplam kayıt 1109, listelenen: 861-880
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Comparative study of the magnetic stiffness, levitation and guidance force properties of single and multi seeded YBCOs for different HTS-PMG arrangements
(Elsevier Ltd, 2015)Abstract It is crucial to improve the magnetic levitation, guidance and stiffness performances of the HTS Maglev systems for real-scale applications. In this study, the magnetic levitation force, guidance force and magnetic ... -
Analysis of continuous and discontinuous cases of a contact problem using analytical method and FEM
(Brazilian Association of Computational Mechanics, 2015)In this paper, continuous and discontinuous cases of a contact problem for two elastic layers supported by a Winkler foundation are analyzed using both analytical method and finite element method. In the analyses, it is ... -
The effect of dynamic geometry software and physical manipulatives on candidate teachers’ transformational geometry success
(Edam, 2015)This study aims to investigate the effects of using Dynamic Geometry Software (DGS) Cabri II Plus and physical manipulatives on the transformational geometry achievement of candidate teachers. In this study, the semiexperimental ... -
The effect of fly ash to self-compactability of pumice aggregate lightweight concrete
(Springer India, 2015)This paper presents the results of an experimental study on the effects of fly ash, different water/(cement + mineral additive) ratios and pumice aggregates to some physical and mechanical properties of self-compacting ... -
Levitation and guidance force efficiencies of bulk YBCO for different permanent magnetic guideways
(Elsevier Ltd, 2015)The development of superconductor Maglev systems depends on various disciplinary studies due to the inherent composition of available technologies. Because the fabrication cost is very effective on the Maglev, the requirement ... -
Reference-Plane-Invariant Effective Thickness and Electromagnetic Property Determination of Isotropic Metamaterials Involving Boundary Effects
(Institute of Electrical and Electronics Engineers Inc., 2015)It is well recognized that near-field effects become dominant when the metamaterial (MM) is in resonance. In addition, any inaccurate information of the location of reference planes, and the effective length can seriously ... -
Conformational and spectroscopic behaviors of 2,4-xylyl isothiocyanate
(Elsevier, 2015)This study aims to identify the conformational and spectroscopic characteristics of 2,4-xylyl isothiocyanate (C<inf>9</inf>H<inf>9</inf>NS) compound via experimental and computational methods. To accomplish this, density ... -
Some physical properties of a Si-doped nano-crystalline GaAs thin film grown by thermionic vacuum arc
(Elsevier Ltd, 2015)Abstract A 160 nm thick Si-doped nano-crystalline GaAs film was grown on a glass substrate by means of the thermionic vacuum arc in just 50 s. Tools and techniques such as an optical reflectometer, Uv-Vis-NIR spectrophotometer, ... -
The effect of starch modification and concentration on steady-state and dynamic rheology of meat emulsions
(Elsevier, 2015)In this study, the effect of starch modification (NPS, native potato starch; AMS, acid modified starch; DMS, dextrinized modified starch; PGS, pre-gelatinized modified starch) and its concentrations (1, 2, 4wt%) on ... -
Determination of Reference-Plane Invariant, Thickness-Independent, and Broadband Constitutive Parameters of Thin Materials
(Institute of Electrical and Electronics Engineers Inc., 2015)We propose an effective microwave method for reference-plane-invariant and thickness-independent constitutive parameters measurement of thin materials. A function depending only on the interface reflection coefficient to ... -
Asymmetric Friedel-Crafts alkylation of pyrrole with nitroalkenes catalyzed by a copper complex of a bisphenol A-derived Schiff base
(Elsevier Ltd, 2015)The asymmetric Friedel-Crafts (FC) alkylation of pyrrole with nitroalkenes was mediated by CuBr2 and a novel bisphenol A-derived chiral catalyst at room temperature. The catalyst was found to be applicable for the asymmetric ... -
AlGaAs film growth using thermionic vacuum arc (TVA) and determination of its physical properties
(Springer Verlag, 2015)In this research, an AlGaAs film was deposited on a microscope slide by means of the thermionic vacuum arc (TVA) technique which is a novel plasma production technique. AlGaAs structures were grown by this deposition ... -
The toxicological impacts of some heavy metals on carbonic anhydrase from gilthead sea bream (Sparus aurata) gills
(Elsevier, 2015)It is known that heavy metals have toxic effects on fish. Insufficient measures are a serious problem in our country and around the world. This problem can threaten human health in areas where it is common for people to ... -
An experimental and density functional study on conformational and spectroscopic analysis of 5-methoxyindole-2-carboxylic acid
(Elsevier, 2015)In this article, a brief conformational and spectroscopic characterization of 5-methoxyindole-2-carboxylic acid (5-MeOICA) via experimental techniques and applications of quantum chemical methods is presented. The ... -
Simple time-saving method for iron determination based on fluorescence quenching of an azaflavanon-3-ol compound
(American Chemical Society, 2015)A simple and time-saving spectrofluorometric method developed using an azaflavanon-3-ol compound was used for the determination of iron in various food samples. Nitric acid and hydrogen peroxide were used for digestion of ... -
Achieving room temperature superplasticity in Zn-5Al alloy at high strain rates by equal-channel angular extrusion
(Elsevier Ltd, 2015)Multi-pass equal-channel angular extrusion/pressing (ECAE/P) was applied to the eutectic Zn-5Al alloy to achieve high strain-rate (HSR) superplasticity in that alloy at room temperature (RT) by producing ultrafine-grained ... -
Effect of onboard PM position on the magnetic force and stiffness performance of multi-seeded YBCO
(Elsevier Ltd, 2015)Abstract In implemented studies before, although some advancements have been achieved in improving on the levitation or guidance force efficiency of YBCOs separately, both of these forces could not been enhanced simultaneously. ... -
A novel approach based on DEMATEL method and patent citation analysis for prioritizing a portfolio of investment projects
(Elsevier Ltd, 2015)The aim of this article is to propose a novel approach based on a method called Decision-Making Trial and Evaluation Laboratory (DEMATEL) and patent citation analysis for prioritizing the portfolio of investment projects. ... -
Isolation and identification of an exopolysaccharide producer Streptococcus thermophilus strain from Turkish yogurt [Yoğurttan ekzopolisakkarit üreten Streptococcus thermophilus suşunun izolasyonu ve tanımlanması]
(Veteriner Fakultesi Dergisi, 2015)Production of exopolysaccharides (EPS) by starter Lactic acid bacteria (LAB) gained special interest due to technological role of these natural polymers. Yogurt samples were collected from different households in Turkey ... -
Optical and surface properties of LiFePO<inf>4</inf> thin films prepared by RF magnetron sputtering
(Springer New York LLC, 2015)LiFePO<inf>4</inf> thin films with thickness values of 65 nm and 70 nm were deposited onto glass substrates by RF magnetron sputtering, using a LiFePO<inf>4</inf> target in the argon atmosphere. A comprehensive study of ...
