The calculation of conductivity electron concentrations in n -GaSb at T = 295 K and 77 have been made. concentration “heavy” electrons the L-valley conduction band Т has shown to exceed “light” one Γ-valley. On contrary, are gathered Γ-valley.The results Hall measurements made on tellurium-doped samples n-GaSb obtained by Czochralski method represented. It that upon analysing data K, it is nece...

The concentrations of conduction electrons in n -GaSb at 295 and 77 K have been calculated taking into account the non-parabolic deviation band shape. We show that T = concentration heavy L -valley is higher than light Г-valley. On contrary, are mostly concentrated Hall data for tellurium doped CZ specimens reported. Analysis experimental requires existence two types be taken (the ones), which ...

The aim of this study was to determine the clinical safety and efficacy of preoperative embolization of meningiomas with low-concentration n-butyl cyanoacrylate (NBCA). Nineteen cases of hypervascular intracranial meningiomas were treated by preoperative embolization with 14% NBCA, using a wedged superselective catheterization of feeding arteries and reflux-hold-reinjection technique. Clinical ...

a 4 days study was conducted to determine the effects of different concentration of bioaugmentor bacterial strain bacillus licheniformisi, b. subtilis, b. polymyxa, b. laterosporus and b. circulans (protexin aquatech, uk) on adjustment of parameters of water quality as tan, no2-n, no3-n and turbidity from the effluent of common carp ponds. effects of time and concentration were studied as a com...