Kinetics of redox interaction between substituted 1,4-benzoquinones and ascorbate under aerobic conditions: Critical phenomena

1998 ◽  
Vol 29 (2) ◽  
pp. 115-125 ◽  
Author(s):  
Vitaly A. Roginsky ◽  
Tatjana K. Barsukova ◽  
Gernot Bruchelt ◽  
Hartmut B. Stegmann
Keyword(s):  
Critical Phenomena ◽  
Aerobic Conditions ◽  
Redox Interaction ◽  
Kinetics Of

Kinetics of redox interaction between substituted quinones and ascorbate under aerobic conditions

1999 ◽  
Vol 121 (2) ◽  
pp. 177-197 ◽  
Author(s):  
Vitaly A. Roginsky ◽  
Tatjana K. Barsukova ◽  
Hartmut B. Stegmann
Keyword(s):  
Aerobic Conditions ◽  
Redox Interaction ◽  
Kinetics Of

Pattern formation and pattern selection in the Landau–Ginzburg model of critical phenomena

1990 ◽  
Vol 68 (9) ◽  
pp. 760-767 ◽  
Author(s):  
J. A. Tuszynski ◽  
M. Otwinowski
Keyword(s):  
Liquid Crystals ◽  
Partial Differential Equations ◽  
Pattern Formation ◽  
Critical Phenomena ◽  
Nonlinear Partial Differential Equations ◽  
Point Of View ◽  
Pattern Selection ◽  
Control Parameters ◽  
The Family ◽  
Kinetics Of

In this paper we investigate the family of nonlinear partial differential equations used to describe the kinetics of critical phenomena within the Landau–Ginzburg model. An analysis of the recently obtained symmetry-reduction results for a number of such equations is provided from the point of view of pattern formation at criticality. Various possibilities occur depending on the choice of control parameters. An illustration is provided using several physical examples such as metamagnets and liquid crystals.

scholarly journals Kinetics of Ethanol and Acetaldehyde Release Suggest a Role for Acetaldehyde Production in Tolerance of Rice Seedlings to Micro-aerobic Conditions

2005 ◽  
Vol 96 (4) ◽  
pp. 727-736 ◽  
Author(s):  
E. I. BOAMFA ◽  
A. H. VERES ◽  
P. C. RAM ◽  
M. B. JACKSON ◽  
J. REUSS ◽  
...  
Keyword(s):  
Rice Seedlings ◽  
Aerobic Conditions ◽  
Acetaldehyde Production ◽  
Kinetics Of

Kinetics of FeIIIEDTA complex reduction with iron powder under aerobic conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 38416-38423 ◽  
Author(s):  
Feiqiang He ◽  
Xianhe Deng ◽  
Min Chen
Keyword(s):  
Kinetic Model ◽  
Iron Powder ◽  
Aerobic Condition ◽  
Edta Complex ◽  
Aerobic Conditions ◽  
Kinetics Of

The kinetic model of FeIIIEDTA complex reduction with iron powder under aerobic condition is deduced and validated. It was .

“In situ” investigations to define the degradation of phenols in groundwater

2007 ◽  
Vol 7 (3) ◽  
pp. 9-16
Author(s):  
M. Dimkić ◽  
M. Pušić ◽  
M. Jordanovski
Keyword(s):  
Analytical Methods ◽  
Phenol Degradation ◽  
Aerobic Conditions ◽  
Aquifer Material ◽  
Short Overview ◽  
Sandy Aquifers ◽  
Kinetics Of

Phenols are especially suitable for defining the mechanism of their degradation in groundwater. Phenols, for the most part, do not sorb on clastic aquifer material. This allows for a comparison of their relative concentrations in groundwater to the concentrations of a tracer, and leads to conclusions which can be drawn about the kinetics of phenol degradation. We have had an opportunity to monitor, in detail, the degradation of phenols at three locations. All three cases involved gravelly and sandy aquifers and aerobic conditions. A summary of the analytical methods applied, and basic results obtained is presented. This paper represents a short overview of the flow and results of the monitoring and five tests which were conducted at the three locations over several years. We believe that the results are representative of the behavior of phenols in aerobic intergranular aquifers.

Biodegradation of naphthalene in montmorillonite/polyacryamide suspensions

1995 ◽  
Vol 31 (1) ◽  
pp. 85-94 ◽  
Author(s):  
S. Magdaliniuk ◽  
J. C. Block ◽  
C. Leyval ◽  
J. Y. Bottero ◽  
G. Villemin ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Mass Transfer ◽  
Aqueous Phase ◽  
Pseudomonas Cepacia ◽  
Aerobic Conditions ◽  
Naphthalene Degradation ◽  
Phase Saturation ◽  
Viable Bacteria ◽  
Adsorption Desorption ◽  
Kinetics Of

The biodegradation of naphthalene in the presence of Na montmorillonite particles, of montmorillonite/polyacrylamide complexes and of polyacrylamide alone was studied in batch assays under aerobic conditions. The concentrations of naphthalene used were below aqueous phase saturation. Adsorption-desorption experiments with montmorillonite and montmorillonite/polyacrylamides complex indicated that little or no naphthalene was adsorbed. Adsorption appeared totally reversible and desorption was rapid, reaching completion in less than 24 hours. Naphthalene was rapidly degraded by an adapted strain of Pseudomonas cepacia (10-25 hours) as a function of the initial viable bacteria count of the inoculum. The kinetics of naphthalene degradation in the presence of montmorillonite/polyacrylamide complexes or even with montmorillonite alone (with no naphthalene adsorbed), were slower (0.64 mg l−1 h−1) than in clayless aqueous solution (0.84 mg l−1 h−1). Dissolved non-biodegradable polyacrylamide had no effect on naphthalene degradation. These results indicate that particles decrease the rate of naphthalene breakdown byPseudomonas cepacia . This may be caused by the fact that montmorillonite particles are smaller on average than bacteria cells. Montmorillonite particles may cover bacteria and so limits nutrient mass transfer.

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