scholarly journals Numerical simulation of the BZ reaction of oxalic acid with a simple four-variable model

1987 ◽  
Vol 33 (1) ◽  
pp. 81-86 ◽  
Author(s):  
V. Gáspár ◽  
Z. Noszticzius ◽  
H. Farkas
Keyword(s):  
Numerical Simulation ◽  
Oxalic Acid ◽  
Variable Model ◽  
Bz Reaction

Influence of substrate on modified oscillation reactions of the Belousov-Zhabotinskii type

1983 ◽  
Vol 48 (11) ◽  
pp. 3223-3228 ◽  
Author(s):  
Peter Ševčík ◽  
Ľubica Adamčíková
Keyword(s):  
Oxalic Acid ◽  
Kinetic Parameters ◽  
Tartaric Acid ◽  
Bz Reaction ◽  
Oscillation Cycle ◽  
Influence Of Substrate

The kinetic parameters of the reaction steps of the oscillation cycle and the parameters of modified oscillation reactions of the Belousov-Zhabotinskii (BZ) type with oxalic acid, tartaric acid, and hypophosphite ions were compared with predictions of Edelson's analysis based on the mechanism of the classical BZ reaction.

Chemical mechanism of the radical feedback loop in the classical BZ reaction. Malonyl bromite and oxalic acid as flow-through intermediates

2000 ◽  
Vol 2 (18) ◽  
pp. 4023-4028 ◽  
Author(s):  
László Hegedüs ◽  
Horst-Dieter Försterling ◽  
Enikö Kókai ◽  
Krisztina Pelle ◽  
Gabriella Taba ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Feedback Loop ◽  
Chemical Mechanism ◽  
Bz Reaction ◽  
Flow Through

scholarly journals Numerical Simulation of the Behaviors of the Bray-Liebhafsky Oscillating Chemical Reaction by a Four-variable Model

2017 ◽  
Vol 56 (2) ◽  
Author(s):  
Jie Ren ◽  
Jinzhang Gao ◽  
Wu Yang
Keyword(s):  
Numerical Simulation ◽  
Rate Constants ◽  
Chaotic Behavior ◽  
Initial Conditions ◽  
Nonlinear Behavior ◽  
Periodic Oscillation ◽  
Variable Model ◽  
Independent Variables ◽  
Oscillating Reaction ◽  
Oscillating Chemical Reaction

Based on a ten-step chemical model involving the concentrations of I<sub>2</sub>(aq), O<sub>2</sub>(aq), and the intermediates of I<sup>-</sup> and HIO<sub>2</sub>, four independent variables and seven irreversible steps, the nonlinear behavior of Bray-Liebhafsky (BL) oscillating reaction was investigated. The results showed that with different values of initial concentrations of reactants in the process of simulation, both periodic oscillation and chaotic behavior could be observed. In addition, at the same initial concentrations and rate constants, the system becomes more and more regular after being chaos. That is to say, the translation from chaos to periodic oscillation at the same initial conditions appeared in the BL system. The nonlinear behavior of system was also investigated briefly

Ectodesmata as Revealed By Freeze-Etch Preparations of Plant Epidermal Cell Walls

1973 ◽  
Vol 31 ◽  
pp. 468-469
Author(s):  
N.C. Lyon ◽  
W. C. Mueller
Keyword(s):  
Electron Microscopy ◽  
Acetic Acid ◽  
Nitric Acid ◽  
Oxalic Acid ◽  
Light Microscopy ◽  
Epidermal Cell ◽  
Cell Walls ◽  
Plant Viruses ◽  
Plant Leaves ◽  
Thin Sections

Schumacher and Halbsguth first demonstrated ectodesmata as pores or channels in the epidermal cell walls in haustoria of Cuscuta odorata L. by light microscopy in tissues fixed in a sublimate fixative (30% ethyl alcohol, 30 ml:glacial acetic acid, 10 ml: 65% nitric acid, 1 ml: 40% formaldehyde, 5 ml: oxalic acid, 2 g: mecuric chloride to saturation 2-3 g). Other workers have published electron micrographs of structures transversing the outer epidermal cell in thin sections of plant leaves that have been interpreted as ectodesmata. Such structures are evident following treatment with Hg++ or Ag+ salts and are only rarely observed by electron microscopy. If ectodesmata exist without such treatment, and are not artefacts, they would afford natural pathways of entry for applied foliar solutions and plant viruses.

Water uptake by substituted amylose tablets: experimentation and numerical simulation

2009 ◽  
Vol 00 (00) ◽  
pp. 090904073309027-8
Author(s):  
H.W. Wang ◽  
S. Kyriacos ◽  
L. Cartilier
Keyword(s):  
Numerical Simulation ◽  
Water Uptake
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