The effects of gamma irradiation on hazelnut tissue at molecular level by fourier transform infrared spectroscopy

Doğan, Ayça


The effects of chronic hypoperfusion on rat cranial bone mineral and organic matrix - A Fourier transform infrared spectroscopy study
Boyar, H; Zorlu, F; Mut, M; Severcan, Feride (Springer Science and Business Media LLC, 2004-06-01)
Arteriovenous malformations (AVM) of the brain, errors in the development of the vasculature, produce high flow arteriovenous shunts. They steal blood from surrounding brain tissue, which is chronically hypoperfused. Hypoperfusion is a condition of inadequate tissue perfusion and oxygenation resulting in abnormal tissue metabolism. In the present study Fourier transform infrared (FTIR) spectroscopy was used to investigate the effects of hypoperfusion on rat cranial bone mineral and organic matrix at the mol...
The Effects of High Frequency RF Capacitively Coupled Plasma on Tensile Strain and Functional Groups of PAN based Carbon Fiber
Erözbek Güngör, Ümmügül (2014-04-25)
In this study, high frequency (40.68 MHz) RF capacitively coupled discharge was used to modify tensile strain and chemical structure of unsized PAN-based carbon fiber under different RF powers, pure nitrogen gas pressures and exposure times. The plasma parameters were diagnosed by using single and double Impedans Langmuir probe techniques to understand physics of high frequency RF-CCP treatment processes. The power range was P = 50-200 Watt and the pressure range was p ≈ 0.1-0.8 Torr. The measured plasma pa...
The effects of post-annealing process on the physical properties of silver-indium-selenium ternary semiconductor thin films deposited by electron beam technique
Çolakoğlu, Tahir; Parlak, Mehmet; Department of Physics (2009)
Ternary chalcopyrite compounds are the semiconductors with suitable properties to be used as absorber materials in thin film solar cells. AgInSe2 is a promising candidate with its several advantages over the widely used CuInSe2. The purpose of this study was to optimize the physical properties of the Ag-In-Se (AIS) thin films that were deposited by e-beam evaporation of Ag3In5Se9 single crystal powder for solar cell applications by means of post-annealing process under nitrogen atmosphere. The as-grown AIS ...
The Effects of chromic acid anodizing on fatigue behavior of (AMS4050) 7050 T7451 aluminum alloy
İlhan, Çağrı; Gürbüz, Rıza; Department of Metallurgical and Materials Engineering (2019)
7050 T7451 is a solution heat treated, stress relieved, and overaged aluminum alloy which has extensively used in aerospace industry. Chromic Acid Anodizing (CAA) is a treatment against corrosion by producing aluminum oxide layer (Al2O3) at the surface. Although corrosion resistance is increased by CAA, fatigue life of the material is affected inversely due to CAA process. CAA process consists of pre-treatments (degrease, etching etc.) and anodizing steps which have different effects on fatigue life of the ...
The Effect of Contrasts in Electrical and Mechanical Properties between Breast Tissues on Harmonic Motion Microwave Doppler Imaging Signal
Irgin, Umit; Top, Can Bars; Gençer, Nevzat Güneri (2021-01-01)
Harmonic Motion Microwave Doppler Imaging (HMMDI) method employs concurrent tissue excitation with focused ultrasound radiation force and microwaves to obtain information on malignancy, based on the dielectric and mechanical properties of the tissues. In this study, we analyze the effect of dielectric and elastic contrasts between a small (tumor) inclusion (3 mm) and the surrounding normal tissue on the HMMDI signal as functions of inclusion position and vibration frequency (from 10 Hz to 95 Hz) using simul...
Citation Formats
A. Doğan, “The effects of gamma irradiation on hazelnut tissue at molecular level by fourier transform infrared spectroscopy,” Middle East Technical University, 2001.