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Kiss O.,Eszterhazy Karoly College
Zootaxa | Year: 2013

Three new species of the Rhyacophila scissa Group in the genus Rhyacophila (Trichoptera, Rhyacophilidae), i.e., Rhya-cophila matanyii n. sp. from Taiwan (Republic of China), Rhyacophila steinmanni n. sp. and Rhyacophila kisszoltani n. sp. from Nepal are described and illustrated with drawings of the genitalia. Copyright © 2013 Magnolia Press. Source

Pocs T.,Eszterhazy Karoly College
Acta Botanica Hungarica | Year: 2012

The recent investigation of the Fiji Islands in the Pacific revealed many new records and the known number of Cololejeunea species was raised from 10 to 38. One out of these fell in synonymy and another proved to be a new species. Altogether eight taxa are described here, as new to science: Cololejeunea bifalcata, C. blepharophylla, C. crateris, C. konratii, C. pacifica, C. saroltae, C. schmidtii var. acutepapillosa and C. tuiwawana. The aim of this paper, apart from the description of new species, includes the redescription of Cololejeunea polyantha and the lectotypification of Lejeunea polyantha (on which C. polyantha is based), and to provide a key for all the 43 species recently known from the Fiji Islands. Some new insular records are also added and finally a phytogeographical analysis on the Fijian Cololejeunea flora is made. Source

Mika J.,Eszterhazy Karoly College
Climatic Change | Year: 2013

The terms "weather extremes" and "climate extremes" are widely used in meteorology, often in relation to climate change. This paper reviews the empirical investigations into parallel changes in extreme events and climate change published in recent years and looks at their relevance for the global energy system. Empirical investigation into the correlation of extremes with global warming covers five groups: changes in temperature, precipitation, wind (storm) extremes, tropical and extra-tropical circulation phenomena. For temperature extremes, extensive analyses demonstrate that extreme hot days and nights will likely become more frequent, and extreme cold days and nights less frequent. Intense precipitation events will likely become more frequent in most continental regions. Scientific confidence in the trends of the frequency, duration, and intensity of tropical cyclones, is still low. A poleward shift is observed for extratropical cyclones, whereas no convincing tendencies of many smaller-scale phenomena, for example, tornados, or hail, can yet be detected. All these extremes have serious implications for the energy sector. © 2013 Springer Science+Business Media Dordrecht. Source

Fodor N.,Hungarian Academy of Sciences | Mika J.,Hungarian Meteorological Service | Mika J.,Eszterhazy Karoly College
Agricultural and Forest Meteorology | Year: 2011

Using analogies from soil science a new global radiation estimation method was developed and tested on a large North-American meteorological database. The newly developed procedure was compared to the well-known, Donatelli-Campbell method. Both the overall indicators and the more detailed analysis of the model performance confirmed that the new method is more efficient than the Donatelli-Campbell method. The improved performance is due to the greater number of parameters, as well as to the more adequate function type it uses during the calculation. Results suggest that it is sufficient to have 2 year-long data series for parameterizing the new method to provide at least as accurate radiation estimates as provided by the Donatelli-Campbell method. The new method can be efficiently used for locations with no radiation measurement by combining it with a simple spatial interpolation technique. © 2010 Elsevier B.V. Source

Kovacs E.,Eszterhazy Karoly College
Annales Mathematicae et Informaticae | Year: 2012

The aim of this paper is to give a new deduction of Rodrigues' rotation formula. An other benefit of the this deduction is to give a transformation matrix of reflection through an arbitrary plane with the same deduction method. In our opinion this deduction method is better for students, who are learning computer graphics. Source

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