This work focuses on the impact of carrier gas quantity and quality pyrolytic products received from intermediate pyrolysis brewer’s spent grain. In this study, three types gases were tested: argon, nitrogen, carbon dioxide at temperatures 500, 600, 700 °C. On basis process conditions, yield was determined. The ultimate analysis char performed, for selected chars, combustion properties Gas chro...

potassium-argon analysis by stqwise dissolution provides a way to measure in detail the distribution of argon isotopes and potassium in rock salt. the method can be used for salt that contains only trace amounts of potassium, because the potassium and argon in detrital silicates within the salt are not released during the dissolution. water may be used as the solvent when relatively large amoun...

in this paper, construction of triplet atmospheric plasma jet using argon, air, oxygen and nitrogen gases is reported. bactericidal effect of the plasma jet is also investigated. to that end, longitudinal geometric configuration for the electrodes was chosen because it would increase the jet length. electrical characteristics, jet length dependencies on the applied voltage and gas flow rate wer...

A new method for the measurement of argon isotope composition in a continuous flow of helium for potassium/argon geochronology is described. Extraction of argon from geological samples in multiple-sample holders was carried out in a chamber by heating with a continuous Nd-YAG laser. The extracted and pre-concentrated argon is passed through a chromatographic capillary column in a flow of helium...

Emission spectra of constituent gas species from glow discharge plasmas using argon-helium, krypton-helium, argon-krypton, and krypton-argon gas mixtures were analyzed to elucidate collisional energy transfer between these gas species occurring in the plasma. In the argon-helium mixed gas plasma, the enhancement or quenching of particular Ar II lines was observed when helium was added to an arg...

Numerical calculations are reported which simulate atmospheric-pressure radiofrequency induction plasmas consisting of either pure argon or mixtures of argon with hydrogen, nitrogen, or oxygen. These calculations are compared to observations of laboratoo, plasmas generated with the same geometrr and run conditions. The major features of the laboratory plasmas are predicted well by the calculati...

background: endoscopic therapies can decrease the morbidity of patients with high risk peptic ulcer. the aim of this study was to evaluate the beneficial effects of oral omeprazole therapy in patients with bleeding peptic ulcer who received combined endoscopic treatment (epinephrine injection and argon plasma coagulation). materials and methods: eighty six patients with bleeding from gastric, d...