Browsing Makale Koleksiyonu by Title
Now showing items 3036-3055 of 5200
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Linear and nonlinear intersubband optical absorption coefficients and refractive index changes in symmetric double semi-V-shaped quantum wells
(ELSEVIER SCIENCE BV, 2012)In this study, the changes in the refractive index and intersubband optical absorption coefficients in symmetric double semi-V-shaped quantum wells are investigated theoretically. The energy levels and the envelope wave ... -
Linear and nonlinear optical absorption coefficient and electronic features of triple GaAlAs/GaAs and GaInAs/GaAs quantum wells depending on barrier widths
(ELSEVIER GMBH, 2019)In the present work, the effect of the barrier widths (BWs) on the linear and nonlinear optical absorption coefficient (OAC) and the electronic features of asymmetric triple Ga1-xAlxAs/GaAs (A structure) and Ga1-xInxAs/GaAs ... -
Linear and nonlinear optical absorption coefficients and refractive index changes in double parabolic-square quantum well as dependent on intense laser field
(SPRINGER HEIDELBERG, 2015)In this study, for double parabolic-square quantum well (DPSQW) the linear and nonlinear intersubband optical absorption coefficients and the refractive index changes are calculated as dependent on the intense laser field ... -
Linear and nonlinear optical absorption in different graded quantum wells modulated by intense laser field
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2012)The laser field dependence of the linear and nonlinear intersubband optical absorption in different graded quantum wells (GQWs) is investigated in the effective mass approximation. Results obtained show that the position ... -
Linear and nonlinear optical properties in a double inverse parabolic quantum well under applied electric and magnetic fields
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2014)In the present work, the effects of electric and magnetic fields on the optical absorption coefficient and refractive index changes associated with intersubband transitions in a GaAs/AlxGa1-xAs double inverse parabolic ... -
Linear and nonlinear optical properties in a semiconductor quantum well under intense laser radiation: Effects of applied electromagnetic fields
(ELSEVIER SCIENCE BV, 2012)In this work we are studying the intense laser effects on the electron-related linear and nonlinear optical properties in GaAs-Ga1-xAlxAs quantum wells under applied electric and magnetic fields. The calculated quantities ... -
Linear and nonlinear optical properties in an asymmetric double quantum well under intense laser field: Effects of applied electric and magnetic fields
(ELSEVIER SCIENCE BV, 2016)In the present study, the effects of electric and magnetic fields on the linear and third-order nonlinear optical absorption coefficients and relative change of the refractive index in asymmetric GaAs/GaAlAs double quantum ... -
Linear and nonlinear optical properties in asymmetric double semi-V-shaped quantum well
(ELSEVIER SCIENCE BV, 2015)In this present work, the effects of the structure parameters such as the right-well width and the rightbarrier height on the linear, third-order nonlinear and total absorption and refractive index changes of asymmetric ... -
Linear and nonlinear optical properties in the terahertz regime for multiple-step quantum wells under intense laser field: Electric and magnetic field effects
(ELSEVIER SCIENCE BV, 2018)We present a theoretical study on the linear and nonlinear optical properties in AlrGa1-rAs/GaAs asymmetric multiple step quantum wells (AMSQW) under the effects of a non-resonant intense laser field (ILF), electric, and ... -
Linear and nonlinear optical properties of asymmetric triple quantum wells under intense laser field
(IOP PUBLISHING LTD, 2019)For asymmetric triple quantum wells (ATQW) the linear and nonlinear optical absorption coefficient (OAC) and the optical refractive index change (ORIC) are analyzed according to the intense laser field (ILF). The obtained ... -
Linear and total intersubband transitions in the step-like GaAs/GaAlAs asymmetric quantum well as dependent on intense laser field
(SPRINGER HEIDELBERG, 2015)In this study, for a step-like GaAs-Ga1-xAlxAs asymmetric quantum well (AQW) the linear and total intersubband optical absorption coefficients and the refractive index changes are calculated as dependent on the intense ... -
A Linguistic Examination of Kitab al-Idrak li-lisan al-Atrak of Abu.ayyan al-Andalusi
(CUMHURIYET UNIV, FAC THEOLOGY, 2016)Mamluks reigned in Egypt a long time is an era of Kipchak Turks that have influence management, and Kipchak Turks has been influential in a period in the administration there. During this period, that Turkish rulers do not ... -
Lipid and lipoprotein patterns in type 2 non-obese diabetic patients. Do Lp(a) levels decrease with improved glycemic control in these patients?
(MEDIKAL PRESS S R L, 2000)Background and Aim: In this study, we investigated that levels of apolipopotein-AI (apo-AI), apolipoprotein (apo-B), triglyceride (TG), high-density-lipoprotein-cholesterol (HDL-C), low-density-lipoprotein-cholesterol ... -
Lipid peroxidation level and antioxidant enzyme activities in septicemic calves
(ANKARA UNIV PRESS, 2017)In recent years, studies showed that there is a close relationship between oxidative stress and pathogenesis of the disease. The aim of the study is to determine the serum malondialdehyde (MDA) levels for lipid peroxidation ... -
Lipiodol UF retention in dental sialography
(BRITISH INST RADIOLOGY, 2004)Lipiodol is a lipid based contrast medium and is very useful in sialography. It gives very fine images and clearly shows the details of the gland. It is viscous and has a relatively high iodine content. However, lipiodol ... -
Liquefaction potential and susceptibility mapping in the city of Yalova, Turkey
(SPRINGER, 2005)This study presents results of both field and laboratory tests that have been used to asses liquefaction susceptibilities of the soils in Yalova city, located in the well-known seismically active North Anatolian Fault Zone. ... -
A Literary Genre Unknown Sufficiently in the Turkish Literature: Ruzname and An Example
(CUMHURIYET UNIV, FAC THEOLOGY, 2016)The word of ruzname means diary in the Persian language. In the historical records it refers to special diaries written by the secret clerks of Ottoman sultans. Apart from that there are various different types of ruznames. ... -
Litter categorization of beaches in wales, UK by multi-layer neural networks
(COASTAL EDUCATION & RESEARCH FOUNDATION, 2006)Litter categories and grades of Welsh beaches were satisfactorily predicted by multi-layered feed for-ward neural networks and fuzzy systems, which are artificial intelligence techniques. Neural network structures with ... -
Liver and colon pro- and anti-oxidant enzyme activities in rats after long-term ethylnitrosourea exposure
(NATL INST SCIENCE COMMUNICATION, 2003)Liver and colon pro- and anti-oxidant enzyme activities were investigated in rats treated with ethyl nitrosourea (ENU) (i.p.) (4 mg/kg body wt) for 6 months. The pro-oxidant enzymes (NADPH cytochrome c reductase, NADH ... -
Liver and muscle fatty acid composition of mature and immature rainbow trout (Oncorhynchus mykiss) fed two different diets
(VERSITA, 2007)Fatty acid composition of liver and muscle tissues of immature and mature Oncorhynchus mykiss fed on two different diets were determined. Fatty acid analyses were carried out by gas chromatography. Palmitic acid (C16:0), ...