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Recent Submissions

Granitik Buzul Çakıllarında Zirkon Tipolojisi Çalışması: Toridler’den Örnek Bir Çalışma (Türkiye)
Köksal, Serhat (2020-11-01)
Gondwana’nın kuzey kenarına ait Geç Ordovisiyen buzul kayaçlarına, Torid’lerde ve Güneydoğu Anadolu Otokton Kuşağı’nda rastlanmaktadır. Bu çalışmada; Doğu Toridler’de Feke-Saimbeyli-Ceralan (Adana) (DPK-30), Feke-Gökmenler...
Optical and Nanomechanical Properties of Ga(2)Se(3)Single Crystals and Thin Films
IŞIK, MEHMET; Emir, Cansu; Güllü, Hasan Hüseyin; Hasanlı, Nızamı (Springer Science and Business Media LLC, 2020-10-01)
The optical and nanomechanical properties of Ga(2)Se(3)single crystals and thin films were investigated using reflection, transmission, and nanoindentation measurements. The reflection spectrum recorded in the 525- to 1100...
First-principles studies of Tin+1SiN(n) (n=1, 2, 3) MAX phase
Surucu, Gokhan; Güllü, Hasan Hüseyin; CANDAN, ABDULLAH; YILDIZ, BUĞRA; Erkisi, Aytac (Informa UK Limited, 2020-09-01)
In this study, the structural, electronic, mechanical, lattice dynamical and thermodynamic characteristics of ( 1, 2 and 3) phase compounds were investigated using the first principle calculations. These ternary nitride co...
Real-time gas monitoring at the Tekke Hamam geothermal field (Western Anatolia, Turkey): an assessment in relation to local seismicity
Süer, Selin; Wiersberg, Thomas; Güleç, Nilgün Türkan; Erzinger, Joerg; Parlaktuna, Mahmut (Springer Science and Business Media LLC, 2020-08-01)
This study presents the results of a real-time gas monitoring experiment conducted, via the use of a quadrupole mass spectrometer, in a mofette field within the Tekke Hamam geothermal site in western Anatolia (Turkey), a t...
Material and Si-based diode analyses of sputtered ZnTe thin films
Güllü, Hasan Hüseyin; Surucu, O. Bayrakli; Isik, M.; Terlemezoglu, M.; Parlak, M. (Springer Science and Business Media LLC, 2020-07-01)
Structural, optical, and electrical properties ZnTe thin films grown by magnetron sputtering technique were studied by X-ray diffraction, atomic force microscopy, Raman spectroscopy, and electrical conductivity measurement...
Investigation of structural, electronic, magnetic and lattice dynamical properties for XCoBi (X: Ti, Zr, Hf) Half-Heusler compounds
Surucu, Gokhan; IŞIK, MEHMET; CANDAN, ABDULLAH; Wang, Xiaotian; Güllü, Hasan Hüseyin (Elsevier BV, 2020-06-15)
Structural, electronic, magnetic, mechanical and lattice dynamical properties of XCoBi (X: Ti, Zr, Hf) Half-Heusler compounds have been investigated according to density functional theory and generalized gradient approxima...
3D Printed Hydrogel Multiassay Platforms for Robust Generation of Engineered Contractile Tissues
Christensen, Rie Kjaer; Laier, Christoffer von Halling; Kızıltay, Aysel; Wilson, Sandra; Larsen, Niels Bent (American Chemical Society (ACS), 2020-02-01)
We present a method for reproducible manufacture of multiassay platforms with tunable mechanical properties for muscle tissue strip analysis. The platforms result from stereolithographic 3D printing of low protein-binding ...
Determination of current transport characteristics in Au-Cu/CuO/n-Si Schottky diodes
Surucu, O. Bayrakli; Güllü, Hasan Hüseyin; Terlemezoglu, M.; Yildiz, D. E.; Parlak, M. (Elsevier BV, 2019-10-01)
In this study, the material properties of CuO thin films fabricated by sputtering technique and electrical properties of CuO/n-Si structure were reported. Temperature-dependent current-voltage (I-V) measurement was carried...
Mechanistic Insights into the Reaction of N-Propargylated Pyrrole- and Indole-Carbaldehyde with Ammonia, Alkyl Amines, and Branched Amines: A Synthetic and Theoretical Investigation
Sari, Ozlem; Seybek, Ali Fatih; Kaya, Serap; Menges, Nurettin; ERDEM, SAFİYE; BALCI, METİN (Wiley, 2019-09-01)
The reaction of pyrrole- and indole-carbaldehydes having a propargyl group attached to the nitrogen atom with various amines was studied. The reaction with ammonia formed pyrrolo[1,2-a]pyrazine and pyrazino[1,2-a]indole wh...
Deposition and Characterization of ZnSnSe2 Thin-Films Deposited by Using Sintered Stoichiometric Powder
Bayrakli Surucu, Ozge; Güllü, Hasan Hüseyin (2019-09-01)
In this work, ZnSnSe2 (ZTSe) thin films were deposited using crystalline powder grown by vertical Bridgman-Stockbarger technique. The deposition process was carried out by means of e-beam evaporation on the well-cleaned so...
Atomic size effect of alloying elements on the formation, evolution and strengthening of gamma'-Ni3Al precipitates in Ni-based superalloys
Eriş, Rasim; Akdeniz, Mahmut Vedat; Mehrabov, Amdulla (2019-06-01)
Mechanical properties of Ni-based superalloys strongly depend on phase and site preferences of alloying elements which influence bonding strength within gamma'-Ni3Al precipitates and microstructural characteristics of thes...
The Upper Cretaceous intrusive rocks with extensive crustal contribution in Hacimahmutusagi Area (Aksaray/Turkey)
Köksal, Serhat (Central Library of the Slovak Academy of Sciences, 2019-06-01)
The Hacimahmutusagi area (Aksaray/Turkey) is located in the western part of the Central Anatolian Crystalline Complex (CACC). Gneiss and marble compose the basement units, while intrusive rocks are gabbros and granitoids. ...
Recovery of Scandium by Crystallization Techniques
Peters, Edward Michael; Kaya, Serap; Dittrich, Carsten; Forsberg, Kerstin (2019-03-01)
Bauxite residues, i.e., red mud, can be processed to recover various valuable end products, while reducing the environmental impact of the waste. Scandium is one of the valuable elements in bauxite residues. It is possible...
Frequency Dependent Dielectric Properties of ZnSe/p-Si Diode
Güllü, Hasan Hüseyin; YILDIZ, DİLBER ESRA (2019-03-01)
The study on electrical and dielectric properties of the ZnSe/p-Si diode have been investigated using admittance measurements in the frequency range of 50 kHz - 1 MHz at room temperature. The experimental values of dielect...
Gold-assembled silica-coated cobalt nanoparticles as efficient magnetic separation units and surface-enhanced Raman scattering substrate
Yıldırım, Lütfiye Sezen; KAYA, MURAT; Volkan, Mürvet (The Scientific and Technological Research Council of Turkey, 2019-01-01)
Magnetic and optical bifunctional nanoparticles that combine easy separation, preconcentration, and efficient SERS capabilities have been fabricated with high sensitivity and reproducibility through a low-cost method. Thes...
Multilayer polymeric films for controlled release of ceftriaxone sodium
Kızıltay, Aysel; Gündoğan, Zeynep; EREL GÖKTEPE, İREM; Hasırcı, Nesrin (LookUs Bilisim A.S., 2019-01-01)
Objective: The objective of this study was to prepare a controlled release system, which could be used in medical applications in order to treat infections at the host region. Methods: Microlayer films were prepared via so...
The Analysis of Inhomogeneous Barrier Height in In/SnTe/Si/Ag Diode
Güllü, Hasan Hüseyin; YILDIZ, DİLBER ESRA (2018-12-01)
SnTe thin film layer was fabricated by magnetron sputtering technique on n-Si substrate, and the electrical properties of the In/SnTe/Si/Ag diode structure was investigated by using temperature dependent forward bias curre...
Impact of Iontophoresis and PACK-CXL Corneal Concentrations of Antifungals in an In Vivo Model
KALKANCI, AYŞE; Yesilirmak, Nilufer; Ozdemir, Huseyin Baran; Unal, Elif Ayca; Erdogan, Merve; Şeker, Tamay; Tum, Atakan Emre; Karakus, Ahmet Kamil; Hizel, Kenan; Bilgihan, Kamil (Ovid Technologies (Wolters Kluwer Health), 2018-11-01)
Purpose: To investigate voriconazole (VRZ) penetration and fungal load in the cornea after applying VRZ therapy with various treatment combinations in a fungal keratitis model. Methods: Fifty-four eyes of 27 young albino r...
Scandium Recovery from an Ammonium Fluoride Strip Liquor by Anti-Solvent Crystallization
Kaya, Serap; Peters, Edward Michael; Forsberg, Kerstin; Dittrich, Carsten; Stopic, Srecko; Friedrich, Bernd (2018-10-01)
In this study, the crystallization of scandium from ammonium fluoride strip liquor, obtained by solvent extraction, was investigated using an anti-solvent crystallization technique. Acetone, ethanol, methanol and isopropan...
Co-60 gamma irradiation influences on physical, chemical and electrical characteristics of HfO2/Si thin films
KAYA, ŞENOL; Yıldız, İlker; LÖK, RAMAZAN; YILMAZ, ERCAN (Elsevier BV, 2018-09-01)
Co-60 gamma irradiation effects on physical, chemical and electrical characteristics of HfO2/Si thin films have been investigated in details. The variations on the crystallographic structure and surface morphology of the f...