Centaurea uniflora Turra subsp. nervosa (Willd.) Bonnier & Layens (Compositae), nova svojta u flori Hrvatske

Centaurea uniflora Turra subsp. nervosa (Willd.) Bonnier & Layens has been found on a mountain meadow near Guslica – in the north west part of »Risnjak« National Park (north west Croatia). This is the first finding of the plant in Croatia.Centaurea uniflora Turra subsp. nervosa (Willd.) Bonnier & Layens nađena je na planinskoj rudini Guslice – sjeverozapadni dio Nacionalnog parka »Risnjak« (sjeverozapadna Hrvatska). To je prvi nalaz te biljke u Hrvatskoj

Ecological conditions, flora and vegetation of a large doline in the Mecsek Mountains (South Hungary)

Vegetation-environment relationships were investigated in a large doline of the Mecsek Mts (South Hungary). To reveal the vegetation pattern, we collected vegetation data and environmental variables along a 243 m long transect. Atotal of 144 vascular plant species and 4 vegetation types were identified in the doline.We found that both the species composition and the vegetation pattern are significantly influenced by air temperature, air humidity, soil moisture and altitude. Our results confirm the putative temperature and vegetation inversion in the doline

Changes in Hydrogen Content During Steelmaking

Štore Steel produces steel grades for spring, forging and engineering industry applications. Steelmaking technology consists of scrap melting in Electric Arc Furnace (EAF), secondary metallurgy in Ladle Furnace (LF) and continuous casting of billets (CC). Hydrogen content during steelmaking of various steel grades and steelmaking technologies was measured. Samples of steel melt from EAF, LF and CC were collected and investigated. Sampling from Electric Arc Furnace and Ladle Furnace was carried out using vacuum pin tubes. Regular measurements of hydrogen content in steel melt were made using Hydris device. Hydrogen content results measured in tundish by Hydris device were compared with results from pin tube samples. Based on the measurement results it was established that hydrogen content during steelmaking increases. The highest values were determined in tundish during casting. Factors that influence the hydrogen content in liquid steel the most were steelmaking technology and alloying elements

Zmiany zawartości wodoru w kąpieli metalowej podczas procesu stalowniczego

Štore Steel produces steel grades for spring, forging and engineering industry applications. Steelmaking technology consists of scrap melting in Electric Arc Furnace (EAF), secondary metallurgy in Ladle Furnace (LF) and continuous casting of billets (CC). Hydrogen content during steelmaking of various steel grades and steelmaking technologies was measured. Samples of steel melt from EAF, LF and CC were collected and investigated. Sampling from Electric Arc Furnace and Ladle Furnace was carried out using vacuum pin tubes. Regular measurements of hydrogen content in steel melt were made using Hydris device. Hydrogen content results measured in tundish by Hydris device were compared with results from pin tube samples. Based on the measurement results it was established that hydrogen content during steelmaking increases. The highest values were determined in tundish during casting. Factors that influence the hydrogen content in liquid steel the most were steelmaking technology and alloying elements.Stalownia Štore Steel produkuje gatunki stali sprężynowych, stali do kucia oraz stali do innych zastosowań przemysłowych. Linia technologiczna obejmuje elektryczny piec łukowy (EAF), rafinację pozapiecową w piecu kadziowym (LF) oraz maszynę do ciągłego odlewania kęsów (COS). Badaniom poddana została zmienność zawartości wodoru w stali w zależności od gatunku stali i wybranej linii technologicznej. Zgromadzono bazę danych w postaci próbek pobieranych z pieca łukowego, pieca kadziowego oraz maszyny COS. Próbki z pieca łukowego oraz pieca kadziowego pobierano za pomocą rurek próżniowych. Przeprowadzano regularnie pomiary zawartości wodoru w stali za pomocą urządzenia Hydris. Mierzoną zawartość wodoru w kadzi pośredniej za pomocą urządzenia Hydris porównywano z zawartością wodoru w próbkach pobranych za pomocą rurek próżniowych. Bazując na opisanych pomiarach stwierdzono wzrost zawartości wodoru w stali w czasie realizowanego procesu stalowniczego. Najwyższe zawartości stwierdzono w kadzi pośredniej urządzenia COS. Czynnikami mającymi największy wpływ na zawartość wodoru w ciekłej stali była zastosowana technologia wytapiania oraz pierwiastki stopowe

Doping in Sports: Legal and Other Aspects

The issue of doping is always a very interesting topic in the modern sport. On the other hand doping is interesting for medicine and biomedicine but also for the law point of view. This paper firstly defines doping and gives a review of the legal framework (national and international). In the end, just to show how the issue of doping is complex, there are given three cases decided before the Court of Arbitration for Sport (CAS): the Strahija case, the Ademi case and the Dobud case