Peristaltic pump units are used in medicine, for pumping blood and its components, and in mechanical engineering for working with aggressive media.The only element in this pump that comes into contact with the working medium is the hose.Such hose characteristics as chemical resistance and wear resistance directly affect the operating life of the en
Intra-annual patterns of weather and daily radial growth changes of Norway spruce and their relationship in the Western Carpathian mountain region over a period of 2008-2012
The contribution presents the results of a 5-year (2008-2012) dendroecological research in a Norway spruce (Picea abies [L.] Karst.) clone forest (Northern Slovakia).Due to different climatic and soil moisture conditions in the monitored years, different seasonal courses of stem increment formation were observed using band dendrometers with continu
Static Security Risk Assessment for Islanded Hybrid AC/DC Microgrid
Due to the lack of the support from the main grid, the islanded hybrid ac/dc microgrid will more likely cause the power flow severe fluctuation and even the microgrid to be split once a serious contingency occurs.To maintain the security and stability of the system under such a condition, this paper proposes a NAIL/DOMES new static security risk as
Ruthenium and iron complexes with benzotriazole and benzimidazole derivatives as simple models for proton-coupled electron transfer systems
Iron and ruthenium complexes of the type [M-LH]n (where M = RuII,III(NH3)5(2+,3+), RuII,III(edta)2-,- [edta = ethylenedinitrilotetraacetate], or FeII,III(CN)5(3-,2-) and LH = benzotriazole or benzimidazole) were prepared and characterized in aqueous solutions by means of electrochemical and spectroelectrochemical methods.Special emphasis was given