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Now showing items 12-23 of 23

Impaired redox homeostasis in the heart left ventricles of aged rats experiencing fast-developing severe hypobaric hypoxia

Ağaşcıoğlu, Eda; Çolak, Rıdvan; Demirel, Haydar; Çakatay, Ufuk (Springer, 2019-10)

Despite its rare occurrence, humans and animals have been prone to getting fast developing severe hypobaric hypoxia. Understanding the redox homeostasis related response of an aging heart to this type of hypoxia are crucially ...
N-phosphorylation of pyrroles: An intramolecular migration reaction

Taşgın, Dilek; Unaleroğlu, Canan (Pergamon-Elsevier Science LTD, 2018-05-16)

A new synthetic method is reported for the N-phosphorylation of pyrroles via intramolecular migration of a phosphonate diester group. The reaction proceeds under mild conditions and produces N-phosphorylated pyrrole ...
Optical and photoelectrical properties of TlInSSe layered single crystals

Güler, İpek; Gasanly, N. (Elsevier GMBH, 2018)

Optical and electrical properties of TlInSSe layered single crystals have been studied by means of transmission, reflection and photoconductivity measurements. Transmission and reflection experiments have been carried out ...
Optical and structural characterization of silicon nitride thin films deposited by PECVD

Güler, İpek (Elsevier, 2019-07)

Plasma enhanced chemical vapor deposition (PECVD) technique was used to deposit silicon nitride (SiNx) thin films. The silane (SiH4) and ammonia (NH3) were used as reactant gases. Both the flow rates of the NH3 and SiH4 ...
Pressure dependence of the Raman frequency calculated from the volume data close to the ferroelectric-paraelectric transition in PbTiO3

Yurtseven, Hamit; Kiracı, Ali (Taylor&Francis, 2017)

We calculate the pressure dependence of the Raman frequencies of some Raman modes by using the observed volume data through the mode Gruneisen parameters for the ferroelectri-paraelectric transition in PbTiO3. The mode ...
Pressure-dependent Raman modes near the cubic-tetragonal transition in strontium titanate

Kiracı, Ali; Yurtseven, Hamit (Wiley, 2018-03)

The pressure dependence of the Raman frequency shifts of various Raman modes is calculated at room temperature using the volume data from the literature for the cubic-tetragonal transition in SrTiO3. The isothermal mode ...
Ring annulation versus alkylation of pyrrole with alpha-phosphoryl-alpha,beta-unsaturated ketones

Taşgın, Dilek Işık; Unaleroğlu, Canan (Pergamon-Elsevier Science LTD, 2016-09-29)

In this study; novel aryl, heteroaryl, pyrrolyl and phosphoryl groups containing pyrrolizines were synthesized by the ring annulation reaction of aryl or heteroaryl substituted alpha-phosphoryl-alpha,beta-unsaturated ketones ...
Structural and Optical Properties of Ga2Se3 Crystals by Spectroscopic Ellipsometry

Güler, İpek; Işık, Mesut; Gasanly, Nizami Mamed; Gasanova, L. G.; Babayeva, Raziye (Springer, 2019-04)

Optical and crystalline structure properties of Ga2Se3 crystals were analyzed utilizing ellipsometry and x-ray diffraction (XRD) experiments, respectively. Components of the complex dielectric function (epsilon=epsilon(1)+i ...
Study of vibrational modes in (Ga2S3)(x) - (Ga2Se3)(1-x) mixed crystals by Raman and infrared reflection measurements

Erdemir, Işık Merda; Güler, İpek; Gasanly, Nizami Mamed (Elsevier, 2019-09)

Raman and infrared (IR) reflection characteristics were investigated in the frequency region of 100-450 cm(-1) for (Ga2S3)(x) - (Ga2Se3)(1-x) mixed crystals for compositions of x increasing from 0.0 to 1.0 by intervals of ...
Temperature and Excitation Intensity Tuned Photoluminescence In Ga0.75In0.25Se Crystals

Işık, M.; Güler, I.; Gasanlyc, N. M. (Elsevier Science BV, 2013-01)

Photoluminescence (PL) spectra of Ga0.75In0.25Se layered single crystals have been studied in the wavelength range of 580-670 nm and temperature range of 7-59 K. Two PL emission bands centered at 613 nm (2.02 eV, A-band) ...
Temperature dependence of the damping constant and the relaxation time close to the tetragonal-cubic phase transition in SrZrO3

Yurtseven, H.; Kiracı, Ali (Elsevier Science BV, 2017-01-15)

The damping constant Gamma(sp) due to the pseudospin-phonon coupling is calculated as a function of temperature using the pseudospin-phonon coupled model and the energy fluctuation model close to the tetragonal-cubic ...
Temperature dependence of the polarization, dielectric constant, damping constant and the relaxation time close to the ferroelectric-paraelectric phase transition in LiNbO3

Kiracı, Ali; Yurtseven, H. (Elsevier GMBH, 2017)

We calculate the order parameter (spontaneous polarization) and the inverse dielectric susceptibility at various temperatures in the ferroelectric phase of LiNbO3 for its ferroelectric-paraelectric phase transition (T-C ...

Now showing items 12-23 of 23

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