scholarly journals STUDY OF INTERACTION KINETICS OF SILICON CARBIDE AND FERROSILICON PRODUCTION MOLTEN SLAG

2017 ◽  
Vol 21 (9) ◽  
pp. 191-200
Author(s):  
Aleksandr A. Akberdin ◽  
◽  
Aleksandr S. Kim ◽  
Ruslan B. Sultangaziev ◽  
◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Molten Slag ◽  
Interaction Kinetics ◽  
Kinetics Of ◽  
Ferrosilicon Production

Irradiation behavior of pyrolytic silicon carbide

1983 ◽  
Vol 41 ◽  
pp. 72-73
Author(s):  
R. J. Lauf
Keyword(s):  
Silicon Carbide ◽  
Fission Products ◽  
Thermodynamics And Kinetics ◽  
Neutron Fluences ◽  
Fuel Particles ◽  
Sic Coatings ◽  
Irradiation Behavior ◽  
Kinetics Of ◽  
Htgr Fuel

Fuel particles for the High-Temperature Gas-Cooled Reactor (HTGR) contain a layer of pyrolytic silicon carbide to act as a miniature pressure vessel and primary fission product barrier. Optimization of the SiC with respect to fuel performance involves four areas of study: (a) characterization of as-deposited SiC coatings; (b) thermodynamics and kinetics of chemical reactions between SiC and fission products; (c) irradiation behavior of SiC in the absence of fission products; and (d) combined effects of irradiation and fission products. This paper reports the behavior of SiC deposited on inert microspheres and irradiated to fast neutron fluences typical of HTGR fuel at end-of-life.

Reordering and Crystallization of Silicon Carbide Amorphized by Neutron Irradiation

2000 ◽  
Vol 650 ◽  
Author(s):  
Lance L. Snead ◽  
Martin Balden
Keyword(s):  
Thin Film ◽  
Silicon Carbide ◽  
Crystallization Kinetics ◽  
Neutron Irradiation ◽  
Onset Temperature ◽  
Kinetics Of Crystallization ◽  
Crystallization Onset Temperature ◽  
Crystallization Onset ◽  
Kinetics Of

ABSTRACTDensification and crystallization kinetics of bulk SiC amorphized by neutron irradiation is studied. The temperature of crystallization onset of this highly pure, fully amorphous bulk SiC was found to be between 875-885°C and crystallization is nearly complete by 950°C. In-situ TEM imaging confirms the onset of crystallization, though thin-film effects apparently alter the kinetics of crystallization above this temperature. It requires >1125°C for complete crystallization of the TEM foil. Annealing at temperatures between the irradiation and crystallization onset temperature is seen to cause significant densification attributed to a relaxation, or reordering, of the as-amorphized structure.

scholarly journals Oral absorption and drug interaction kinetics of moxifloxacin in an animal model of weightlessness

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dong Liang ◽  
Jing Ma ◽  
Bo Wei
Keyword(s):  
Oral Dose ◽  
Oral Absorption ◽  
Jugular Vein ◽  
Plasma Concentrations ◽  
Pharmacokinetic Data ◽  
Simulated Weightlessness ◽  
Sprague Dawley ◽  
Sprague Dawley Rats ◽  
Interaction Kinetics ◽  
Kinetics Of

AbstractTo investigate the effect of simulated weightlessness on the pharmacokinetics of orally administered moxifloxacin and the antacid Maalox or the antidiarrheal Pepto-Bismol using a tail-suspended (TS) rat model of microgravity. Fasted control and TS, jugular-vein-cannulated, male Sprague-Dawley rats received either a single 5 mg/kg intravenous dose or a single 10 mg/kg oral dose of moxifloxacin alone or with a 0.625 mL/kg oral dose of Maalox or a 1.43 mL/kg oral dose of Pepto-Bismol. Plasma concentrations of moxifloxacin were measured by HPLC. Pharmacokinetic data were analyzed using WinNonlin. Simulated weightlessness had no effect on moxifloxacin disposition after intravenous administration but significantly decreased the extent of moxifloxacin oral absorption. The coadministration of moxifloxacin with Maalox to either control or TS rats caused significant reductions in the rate and extent of moxifloxacin absorption. In contrast, the coadministration of moxifloxacin with Pepto-Bismol to TS rats had no significant effect on either the rate or the extent of moxifloxacin absorption. These interactions showed dose staggering when oral administrations of Pepto-Bismol and moxifloxacin were separated by 60 min in control rats but not in TS rats. Dose staggering was more apparent after the coadministration of Maalox and moxifloxacin in TS rats.

Interaction kinetics of serum proteins with liposomes and their effect on phospholipase-induced liposomal drug release

2015 ◽  
Vol 495 (2) ◽  
pp. 827-839 ◽  
Author(s):  
Hiroko Shibata ◽  
Hiroyuki Yoshida ◽  
Ken-Ichi Izutsu ◽  
Yuji Haishima ◽  
Toru Kawanishi ◽  
...  
Keyword(s):  
Drug Release ◽  
Serum Proteins ◽  
Liposomal Drug ◽  
Interaction Kinetics ◽  
Kinetics Of

Oxidation of PECVD SiC Deposited from Trimethylsilane

1998 ◽  
Vol 555 ◽  
Author(s):  
Peter A. DiFonzo ◽  
Mona Massuda ◽  
James T. Kelliher
Keyword(s):  
Thin Films ◽  
Silicon Carbide ◽  
Oxidation Kinetics ◽  
Stoichiometric Composition ◽  
Chemical Vapor ◽  
Oxidation Rates ◽  
Chemical Vapor Deposited ◽  
Kinetics Of ◽  
Sic Films ◽  
Deposition Conditions

AbstractThe stoichiometric composition and oxidation rates ( wet or dry ) of plasma enhanced chemical vapor deposited (PECVD) silicon carbide (SiC) films are effected by the deposition conditions of trimethylsilane (3MS) and carrier gas. We report the oxidation kinetics of SiC thin films deposited in a modified commercial PECVD reactor. A standard horizontal atmospheric furnace in the temperature range of 925–1100°C was used in the oxidation. Oxidized films were measured optically by commercially available interferometer and ellipsometer tools in addition to mechanically using a commercially available profilometer. Activation energies of the parabolic rates were in the range of 20.93 to 335.26 kJ/mol.

Comparative interaction kinetics of two recombinant fabs and of the corresponding antibodies directed to the coat protein of tobacco mosaic virus

1996 ◽  
Vol 9 (1) ◽  
pp. 39-51 ◽  
Author(s):  
Jean Chatellier ◽  
Nathalie Rauffer-Bruyère ◽  
Marc H. V. Van Regenmortel ◽  
Danièle Altschuh ◽  
Etienne Weiss
Keyword(s):  
Coat Protein ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Interaction Kinetics ◽  
Kinetics Of
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