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The aim of our study is to determine the design ground acceleration values at different parts of Debrecen along two profiles crossing the city. Synthetic seismograms are computed by the so called “hybrid technique”. This technique consists of the modal summation method, followed by finite difference modelling. Two independent computations have been performed using two different seismic sources and profiles. In both computations the seismic sources have been located in the so called “Mobile Zone”. The Mobile Zone is a seismically active fault system between the villages of Hosszúpályi and Gálospetri. The focal mechanism and the homogeneous and heterogeneous parts of the profile are known from geophysical and geological data of the investigated area. The maximum response spectra ratio values of the horizontal component are found below 1 Hz all along the profile and the frequencies below 1 Hz are in good agreement with the natural frequencies of the multi-storeyed buildings. Computed effective peak acceleration (EPA) values are found to be in good agreement also with the higher than 6° MSK macroseismic intensity values estimated from the assessment records of damages wrought by the 1834 Érmellék earthquake.

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Imaging
Authors:
Sabrina Oebel
,
Alexander Gotschy
,
Ingo Paetsch
,
Cosima Jahnke
,
Sven Plein
,
Rolf Gebker
,
Sandra Hamada
,
Michael Frick
,
Jochen von Spiczak
,
Malgorzata Polacin
,
Frank Enseleit
,
Nikolaus Marx
,
Thomas F. Lüscher
,
Frank Ruschitzka
,
Sebastian Kozerke
,
Hatem Alkadhi
, and
Robert Manka

disc-summation method in a short-axis geometry with full LV coverage. The 3D perfusion was planned with a short-axis geometry covering the LV from apex to base. Adenosine was used as the pharmacological stressor and administered intravenously at a

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force field [ 37 ]. The combined force field has been successfully used in the simulations of organo-montmorillonite composites. A 15.0 Å cutoff was used for the short-range interaction. The Ewald summation method was used to calculate Coulombic

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