allen P10lern (samt den Exilanten auf Z10) – f ¨ ur alle Hilfsbereitschaft und die entspannte und freundschaftliche Zusammenarbeit (und die dazugehörigen Kaffeepausen) meiner Familie – f ¨ ur die uneingeschränkte Unterstützung in allen Lebenslagen

The western Anatolia is one of the good examples of fast intra-continental extensional tectonics with active extensional stress rate about 3-4 cm/year. Increasing lithospheric thinning causes increasing geothermal activities in the region and active tectonics has generated seismic activity with destructive earthquakes. Moderate sized earthquakes in the region are actually the dominant source of...

Ultrasonic shear-wave propagation studies have been carried out for the measurements of velocity and attenuation in some rocks, concrete and synthetic materials at room conditions. It has been found that ‘pulse broadening’, which occurs due to attenuation, can be measured quite accurately while carrying out shearwave velocity measurements in them. The pulse broadening data could be used to dete...

This study has investigated the relationship between linear attenuation coefficients (mu) and Hounsfield units (HUs) for six materials covering the range of values found clinically. Narrow-beam mu values were measured by performing radionuclide transmission scans using (99m)Tc, (123)I, (131)I, (201)Tl and (111)In. The mu values were compared to published data. The relationships between mu and H...

background: the purpose of this study was to evaluate the infl uence of ejection fraction (ef) on peak aortic time (pat) and  peak aortic enhancement (pae) during coronary computed tomography angiography (cta). materials and methods: one-hundred and twenty patients (64 men, 56 women) underwent measurement of coronary cta with a measurement of ef within 3 months of coronary cta.pearson’s correla...

Fuzzy logic techniques have been widely used in civil and earthquake engineering applications in the past four decades. However, no thorough research studies were conducted to use them for deriving attenuation relationships for peak ground accelerations (PGA). This paper is an attempt to fill this gap by employing a fuzzy approach with fuzzy sets for earthquake magnitude and distance from sourc...