BACKGROUND The aim of this study was to compare retrospectively the characteristics of chest injuries and frequencies of other, concurrent injuries in patients after earthquakes of different seismic intensity. METHODS We compared the cause, type, and body location of chest injuries as well as the frequencies of other, concurrent injuries in patients admitted to our hospital after the Wenchuan...

Many natural phenomena, including geologic events and geophysical data, are fundamentally nonstationary exhibiting statistical variation that changes in space and time. Time-frequency characterization is useful for analyzing such data, seismic traces in particular. We present a novel time-frequency decomposition, which aims at depicting the nonstationary character of seismic data. The proposed ...

The rich oscillation spectra determined for the two stars, ν Eridani and 12 Lacertae, present an interesting challenge to stellar modelling. The stars are hybrid objects showing a number of modes at frequencies typical for β Cep stars but also one mode at frequency typical for SPB stars. We construct seismic models of these stars considering uncertainties in opacity and element distribution. We...

A.1. Abstract Helically coiled ceramic piezoelectric springs have recently been developed at the University of Birmingham for use as potential vibration sensors. The purpose of this programme of work was to investigate in more detail than had been possible previously, the behaviour of such devices, in terms of their response to vibrations in the range of frequencies commonly used in geophysical...

Spiros Alexakis, Markus Bauer, Albina Pace, Alexa Schumacher CAS Software AG, Wilhelm-Schickard-Str. 10-12, 76131 Karlsruhe, GERMANY [email protected] [email protected] [email protected] [email protected] Andreas Friesen SAP Research, CEC Karlsruhe, Vincenz-Prießnitz-Str. 1, 76131 Karlsruhe, GERMANY [email protected] Athanassios Bouras Institute of Communication and Computer...

Seismic data are often inadequately or irregularly sampled along spatial axes. Irregular sampling can produce artifacts in seismic imaging results. We present a new approach to interpolate aliased seismic data based on adaptive predictionerror filtering (PEF) and regularized nonstationary autoregression. Instead of cutting data into overlapping windows (patching), a popular method for handling ...

Gravity time sequences collected at Etna volcano by continuously recording spring-based relative gravimeters showed significant variations in temporal correspondence with paroxysmal eruptions. Since the observed gravity variations can only be partially related to subsurface mass redistribution phenomena, we investigated the instrumental effects due to ground vibrations such as those that accomp...

We apply the Levenberg-Marquardt minimization algorithm to seismic and classical observables of the αCen binary system in order to derive the fundamental parameters of αCenA+B, and to analyze the dependence of these parameters on the chosen observables, on their uncertainty, and on the physics used in stellar modelling. The seismological data are those by Bouchy & Carrier (2002) for αCen A, and...