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Bioconcentration. In aquatic toxicology, bioconcentration is the accumulation of a water-borne chemical substance in an organism exposed to the water. [1][2] There are several ways in which to measure and assess bioaccumulation and bioconcentration. These include: octanol-water partition coefficients (K OW), bioconcentration factors (BCF ...
Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F 2 Cl Br. It is used for fire suppression, especially for expensive equipment or items that could be damaged by the residue from other types of extinguishers. [ 1 ]
Basalt fiber. Basalt fibers are produced from basalt rocks by melting them and converting the melt into fibers. Basalts are rocks of igneous origin. The main energy consumption for the preparation of basalt raw materials to produce of fibers is made in natural conditions. Basalt fibers are classified into 3 types: Basalt continuous fibers (BCF ...
The 10.5 cm GebH 40 was designed to meet an Army requirement for a 10.5 cm howitzer to serve in the mountain divisions (Gebirgs Divisionen). Both Rheinmetall and Böhler submitted designs for troop trials in 1940 and Böhler was selected for production, although actual production did not begin until 1942. [2] Some 420 were built between 1942 ...
The Ehrhardt 7.5 cm Model 1901 (Also known as the 7.5 cm feltkanon m/01 or the M/01 7.5 cm (2.95 in) field gun) was a field gun designed and built by the German company Rheinische Metallwaren- und Maschinenfabrik and sold to Norway in 1901. It remained the main field artillery gun of the Norwegian Army until the German invasion of Norway in 1940.
Photoconductance decay or Photoconductivity decay (PCD or PC), is a non-destructive analytical technique used to measure the lifetime of minority charge carriers in a semiconductor, especially in silicon wafers. [1] The technique studies the transient photoconductivity of a semiconductor sample during or after it is illuminated by a light pulse ...
The 5 cm KwK 38 L/42 (5 cm Kampfwagenkanone 38 L/42) was a German 50 mm calibre cannon used as the main armament of variants of the German Panzer III medium tank during the Second World War. The towed anti-tank gun equivalent was the PaK.37 of which 2,600 were produced from 1937 until 1940.
5 cm KwK 39/1 from a Sd. Kfz. 234/2 Schwerer Panzerspähwagen "Puma". The 5 cm KwK 39 L/60 (5 cm Kampfwagenkanone 39 L/60) was a German 50 mm calibre tank gun used during the Second World War, primarily as the main armament of later models of the German Panzer III tank from December 1941 onwards. [1] It was produced when the well-armoured T-34 ...