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The first scientific tools of earthquake investigations were provided by isoseismic maps. The present paper describes the formation and development of cartographic representation of macroseismic information. Study of old isoseismal maps is of importance in assessing the earthquake hazard. Unfortunately there are only few well documented events prior the epoch of instrumental seismology for which the earthquake parameters (i.e. magnitude, focal depth) and tectonic position can be estimated. In the same time important steps forward in development of seismology (e.g. use of time observations, seismic speed determinations, use of geological information, birth of engineering seismology) are connected with attempts of representation of macroseismic data on maps.

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Probably the most significant link between research into Earth tides and seismology is connected with the first attempts to measure the Earth’s effective elasticity using these tides. In 1863 William Thomson (Lord Kelvin) published his famous paper “On the rigidity of the Earth”, which describes how these observation could determine the mean rigidity of the Earth. This current paper sets out to describe some important developments in this common area of study between seismology and earth tide research until the middle of the twentieth century.

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The effects of UV-C radiation on the germination rate and fungal contamination of tall fescue seeds were investigated. Samples from the same seed lot were irradiated in two different ways in two consecutive years. The seeds were irradiated with a Hg vapour lamp using different doses. In the first trial one side of the seeds was irradiated, while in the second trial a mirror was used to irradiate the whole seed surface. The results showed that various doses of UV-C irradiation had an effect on the germination rate, but there were no significant differences in germination percentage between the treatments. Differences in fungal contamination rates were observed when the seeds were irradiated on all sides. The presence of 21 fungal genera was identified on the seeds, the saprotrophic fungi Alternaria, Rhizopus and Penicillium being dominant.

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The spatio-temporal patterns of the seismicity are shown. The earthquake occurrence is connected to the strain rate on the basis of Kostrov (1974) equation. It is shown that in the Pannonian Basin the seismic rates are 10-7-10-6. This values were derived from the local earthquake catalogues of the area of Komárom, Dunaharaszti (near Budapest) and Kecskemét.  It is shown that the earthquake occurrence in Hungary  has a well expressed diurnal periodicity.  Similar phenomenon was detected in the case of earthquakes of all Europe and in Turkey in case of weak (M L = 3.0) seismic events.

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The La Fontaine Literature Society was founded in 1920 in Budapest. Its task was to promote the world literature in Hungary and to make Hungarian literature better known abroad.

One of the founders was Béla Vikár, who also translated the Fables of Jean La Fontaine into Hungarian. In my paper I investigate his correspondence between 1920 and 30 and the deed of foundation of the La Fontaine Society. My aim is to describe the place and the role of Finnish and Estonian literatures in the Society's work.

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Abstract  

The melting behavior of the -form of isotactic polypropylene (-iPP) was investigated as a function of crystallization time and temperature. Calcium suberate, a selective -nucleating agent was used to produce samples that consist entirely of -form i-PP. The experimental melting points were recorded at different crystallization times and were extrapolated to the start of the crystallization process in order to eliminate the effect of lamellar thickening. Using the non-linear Hoffman—Weeks approach to correlate these extrapolated experimental melting temperatures with the corresponding crystallization temperatures, an equilibrium melting point of 209°C was obtained for -iPP. The equilibrium melting point estimated through the non-linear Hoffman—Weeks analysis is about 30°C higher than that (T m 0=177°C) obtained on the basis of the linear extrapolation. These results are consistent with earlier claims that a linear extrapolation of T mT c data leads to an underestimation of the equilibrium melting point. The results obtained for -iPP exemplify the importance of accounting for both the isothermal lamellar thickening effects and the non-linearity in the T mT c correlation, when the determination of an equilibrium melting point is carried out using a procedure based on the predictions of the Lauritzen—Hoffman secondary nucleation theory.

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