Application of Weak Earthquake Records in Soil-Structure Interaction Analysis

The problem concerns cases when the structure is situated in the geological conditions with different soil layers including soft ones. The wave motion in the subsoil is described for linear and non-linear soil media, damping is included through complex modulus of elasticity. Variation of damping, obtained from laboratory experiments, answers to frequency and time influences. The properties of weak earthquakes are discussed as they are used like input data before soil transfer. The response of layered subsoil describes extremes of seismic vibration at different depth. It has been recognized that site effects can significantly affect the nature of seismic input and the response of structures

Transport and lifeline structures versus accidental and natural hazard actions

The paper deals with the approaches to the response analysis of large transport and lifeline structures. The background theory for simplified analysis is presented. Seismic inputs represent the cases of explosion impacts and large near field earthquake effects. 3DOF and 6DOF input models are based on surface wave theory and applied for calculations and shaking table experiments. Examples of seismic motion simulations are those obtained during large MASTER shaking table tests in Enel.Hydro-ISMES Seriate, Italy in the framework of EC international projects

Co-operative approach of geotechnical and earthquake engineering in seismic input assessment

Application of local conditions in earthquake engineering is interconnected with the achievements in natural sciences like geology, seismology and geotechnics. Due to variation of soil conditions on the territory of Slovakia, the properties of response spectra and/or simulated or adapted recorded accelerograms should take these phenomena into account. The paper discusses the approaches to the determination of shear wave velocities and soil-structure interaction. Possible application of latest records from new Slovak seismic station network is discussed, too

First record of Cathaemasia hians (Trematoda: Cathaemasiidae) in a new bird host, the Eastern Imperial Eagle (Aquila heliaca)

An injured young individual of the Eastern Imperial Eagle (Aquila heliaca; Accipitridae) from the Protected Bird Area „Medzibodrožie” in the south-eastern Slovakia was subjected to the complete clinical examination at the Clinic for Birds and Exotic Animals of the University of Veterinary Medicine and Pharmacy. Adult trematodes were isolated from the pharynx of the eagle after oesophagoscopy. The morphological and molecular identification of the flukes confirmed a trematode Cathaemasia hians (Cathaemasiidae), the obligate parasite of black storks (Ciconia nigra) and white storks (Ciconia ciconia). This finding represents the first documented case of C. hians in new bird host species and indicates broader spectrum of definitive hosts of the fluke