Results 271 to 280 of about 89,513 (311)
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Physicochemical conditions of underground disposal of radioactive wastes
Soviet Atomic Energy, 19681. A basic study of physicochemical conditions necessary to evaluate underground disposal of liquid radioactive wastes was undertaken. 2. Conditions governing burial of decontamination waste streams at the NIIAR site are described. 3.
V. I. Spitsyn +2 more
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The physicochemical conditions of early plume magmatism in West Siberia
Russian Geology and Geophysics, 2010Complex petrological, geochemical, and isotope studies of igneous rocks sampled from the core of parametric Maizasskaya BH-1 showed a predominance of dolerite sills, which formed earlier (~263 ± 4 Ma) than most of basalts in the basement of the West Siberian sedimentary basin and in the Siberian Platform traps (248–251 Ma).
V.A. Simonov +4 more
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Effect of different retrogradation conditions on the physicochemical and sensory properties of rice
International Journal of Biological MacromoleculesStarch retrogradation significantly compromises the quality of ready-to-eat rice products. A systematic understanding of how retrogradation conditions affect different rice varieties is crucial for quality control and product development. This study investigated the effects of different retrogradation conditions (4 °C and 25 °C for 12, 24 and 36 h) on ...
Man, Gao +8 more
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Physicochemical changes of cellulose subjected to oxidative conditions
1999This study focuses on understanding the physicochemical properties of cellulose as it undergoes the oxygen delignification process. Cellulose contributes to fibre strength but is degraded by oxygen attack. Four different types of cellulose, namely a fully bleached softwood pulp (Q-90), hemicellulose reduced pulp derived from Q-90, cotton cellulose and ...
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Physicochemical Properties of Extruded Aquatic Pellets at Various Conditions
Food Engineering Progress, 2018The aim of this research is to evaluate the impact of various process conditions on the physical properties and digestibility of extruded fish feed at different barrel temperatures (120, 130, and 140°C) and moisture contents (35, 40, and 45%). The expansion ratio decreased with increasing the moisture content.
Xuelian Ma +5 more
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Applied Biochemistry and Microbiology, 2009
The physicochemical properties of the complex exopolysaccharide ethapolan (EPS) produced by Acinetobacter sp. 12S during growth on media with various C/N ratios and different concentrations of mineral components and phosphate buffer were studied. Irrespective of the cultivation conditions, the concentrations of carbohydrates (38–44%) and pyruvic acid ...
T. P. Pirog +2 more
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The physicochemical properties of the complex exopolysaccharide ethapolan (EPS) produced by Acinetobacter sp. 12S during growth on media with various C/N ratios and different concentrations of mineral components and phosphate buffer were studied. Irrespective of the cultivation conditions, the concentrations of carbohydrates (38–44%) and pyruvic acid ...
T. P. Pirog +2 more
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Physicochemical Properties of Extruded Chestnut Fruit at Various Conditions
Food Engineering Progress, 2014The effects of extrusion conditions on the physicochemical properties of extruded chestnut fruit were determined by analyzing expansion index, specific length, bulk density, water solubility index (WSI), water absorption index (WAI), reducing sugar, DPPH (1,1-diphenyl-2-picrylhydrazyl) radical-scavenging activity, total phenolic compound, flavonoid ...
Sang-Hee An +3 more
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Molecular nuclei of condensation. Conditions for observance and physicochemical features
Russian Chemical Bulletin, 1998The formation of aerosol particles on molecular nuclei of condensation (MoNC) is considered. An interpretation of this phenomenon, consistent with the physicochemical features of MoNC and with the observed regularities, is proposed. The nucleation is induced by the addition of two or several vapor molecules of a developing agent to MoNC to give ...
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Modeling and analysis of physicochemical processes in recirculating water conditioning
Journal of Mining Science, 2015The current technologies of mineral mining, processing and beneficiation require introduction of closed water circulation. A common ecological and technological objective is in this case reduction of concentration of copper and commercial-grade fat acid ions that worsen flotation.
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Stationarity conditions for physicochemical processes in the interior ballistics of a gun
Combustion, Explosion and Shock Waves, 1995An original method is proposed for ensuring time-invariant (stationary) interior ballistic parameters in the postprojectile space of a gun barrel. Stationarity of the parameters is achieved by investing the solid-propellant charge with highly original structures that produce the required pressure condition and linear growth of the projectile velocity ...
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