Güncel Gönderiler: Mühendislik ve Doğa Bilimleri Fakültesi
Toplam kayıt 697, listelenen: 561-580
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Concentrations of elements in Lias coals from the eastern Black Sea Region, NE-Turkey
(Taylor & Francis Inc, 2016)The element contents and organic matter-element relation between Lias-aged coals exposed in four fields in Gumushane and Bayburt were investigated. In general, fixed carbon and gross calorific values of the Edire and ... -
Geochemical make-up of oceanic peridotites from NW Turkey and the multi-stage melting history of the Tethyan upper mantle
(Springer-Verlag Wien, 2014)We present the whole-rock and the mineral chemical data for upper mantle peridotites from the Harmanci{dotless}k region in NW Turkey and discuss their petrogenetic-tectonic origin. These peridotites are part of a Tethyan ... -
Perturbation Based Stochastic Finite Element Analysis of the Structural Systems with Composite Sections under Earthquake Forces
(Steel and Composite Structures, 2008)This paper demonstrates an application of the perturbation based stochastic finite element method (SFEM) for predicting the performance of structural systems made of composite sections with random material properties. The ... -
Stochastic finite element analysis of structural systems with partially restrained connections subjected to seismic loads
(Techno-Press, 2009)The present paper investigates the stochastic seismic responses of steel Structure systems with Partially Restrained (PR) connections-by using Perturbation based Stochastic Finite Element (PSFEM) method. A stiffness matrix ... -
Gram-Schmidt Eşlenik Yön ve Eşlenik Gradyan Algoritmalarının Adaptif Antenlere Uygulanması
(ELECO, 2002)The rapid growth in demand for cellular mobile communications and emerging fixed wireless access has created the need to increase system capacity through more efficient utilization of the frequency spectrum, and ... -
Probabilistic sensitivity analysis of suspension bridges to near-fault ground motion
(Techno-Press, 2013)The sensitivities of a structural response due to variation of its design parameters are prerequisite in the majority of the algorithms used for fundamental problems in engineering as system uncertainties, identification ... -
The Geochemical and Sr-Nd isotopic Characteristics of Murgul (Artvin) Volcanics in the Eastern Black Sea Region (NE Turkey).
(Chemie der Erde/Geochemistry, 2014)The studied volcanic rocks are footwall and hanging wall dacites from the Murgul mine and the surrounding area. Moreover, the hanging wall dacites contain enclaves. Footwall dacite contains biotite, whereas hanging wall ... -
Granitoyidlere (Gümüşhane, KD Türkiye) Bağlı Gelişen Skarn Cevherleşmelerinin Jeolojisi, Jeokimyası ve Jeokronolojisinin Araştırılması
(2014)Bu projede; Doğu Pontidler’in Kuzey-Güney geçiş zonunda Gümüşhane İli Torul İlçesi’ndeki skarn cevherleşmesinin detay jeolojik haritası, mineralojisi, yan kayaç kimyası, mineral parajenezi,oluşum yaşı, oluşum modeli ve ... -
Geochemistry of dacitic volcanics in the Eastern Pontides (NE Turkey)
(Maik Nauka/Interperiodica/Springer, 2014)Dacitic rocks that crop out around the Zigana Mountain (GumuAYhane) in the eastern Pontide (NE Turkey), are mainly composed of quartz, plagioclase, sanidine, amphibole, muscovite, and biotite as the main minerals. Zircon ... -
Availability of tuffs from northeast of Turkey as natural pozzolan on cement, some chemical and mechanical relationships
(Construction and Building Materials, 2007-12)At Northeast of Turkey, it is possible to find plenty of volcanic origin rocks and rich natural pozzolan beds. In this study, the pozzolanic activities of six types of different tuff samples taken from Trabzon and Bayburt ... -
Abrasion Resistance of Cement Mortar with Different Pozzolanic Compositions and Matrices
(Asce-Amer Soc Civil Engineers, 2011)Abrasion of concrete occurs due to scraping, rubbing, skidding, or sliding of objects on its surface. The abrasion resistance of concrete is influenced by a number of factors, such as compressive strength, surfacing finish, ... -
Fen Bilgisi Öğretmen adaylarının ışık ve atom kavramlarını anlama seviyelerinin tespiti
(2010)Bu çalışma, Fen Bilgisi Öğretmenliği bölümü öğrencilerinin ışık ve atom kavramlarını anlama seviyelerini ve onların bu kavramlarla ilgili yanlış anlamalarının olup olmadığının tespit edilmesi amacıyla yapılmıştır. Çalışma ... -
Investigation of mechanical and mineralogical properties of mortars subjected to sulfate
(Elsevier Sci Ltd, 2010)The durability can be described as concrete's resistance to the destructive influences of a medium containing acid, sulfate and/or various chemicals and mechanical effects. The main objective of this study is investigation ... -
Fizik Öğretmenliği Programı Öğrencilerinin Profilleri, Öğretmenlik Mesleğine Yönelik Tutum ve Endişeleri: Erzurum Örneği
(Kastamonu Eğitim Dergisi, 2005-10)Bireyin bir işi yaparken yaptığı işle ilgili tutumunun işin sonundaki ürünü etkileyebileceği ve mesleğini sevmeyen birinin o meslekte başarılı olamayacağı oldukça yaygın bir kanıdır. Öğretmenlerin mesleklerinde başarılı ... -
Effects of Sintering Temperature on Microstructure and Magnetic Properties of Nd–Fe–B Magnets
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2013-05)The sintered Nd-Fe-B (neodymium-iron-boron) magnet has been used for many applications in various fields such as acoustics, communications, and automation due to its excellent properties including high remanence, high ... -
Comparative study of critical current density, pinning force and levitation force behavior in Yb211 doped-Sm123 bulk superconductors
(ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND, 2012-04-15)The effect of Yb211 doping on the critical transition temperature (T-c), c-lattice parameter, critical current density (J(c)), volume pinning force (F-p) and the vertical levitation force density properties of MPMG-processed ... -
Magnetic Properties of YBCO Single-Crystal Grown on Y2O3 Layer by a Cold Top-Seeding Method
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2012-02)In this work, single-crystal samples 20 mm in diameter were grown by a cold top-seeding method. In order to study the effect of an Y2O3 buffer layer, a compacted precursor was located in a crucible on a buffer layer of ... -
The Effect of Y2O3 Buffer Layer on the Magnetic Properties of Melt-Processed YBCO Superconductor
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2011-07)In this study, two kinds of melt-processed YBCO samples (Y1050-1 and Y1050-2) grown on a buffer layer of Y(2)O(3) addition were fabricated. The compacted powders were located on a crucible with Y(2)O(3) powder freely poured ... -
The Magnetic and Structural Properties of SiC-Doped MgB2 Bulks Prepared by the Standard Ceramic Processing
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2011-01)According to general formula MgB2-x SiC (x) (x=0,0.05,0.1,0.2), MgB2 and SiC-doped bulk superconductors were prepared by the standard ceramic processing. The mixtures of the corresponding powders were sintered at 750 degrees ... -
Magnetic Characterization of SiC Doped Bulk MgB2 Superconductor
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2011-01)Flux pinning is a very significant mechanism to improve critical current density in MgB2 for many applications, such as developing the performance of wires and tapes. In this study, we have done a systematic study of SiC ...
