The transient state in the oxidation of binary alloys forming the most-stable oxide: A numerical solution

1997 ◽  
Vol 47 (5-6) ◽  
pp. 507-524 ◽  
Author(s):  
F. Gesmundo ◽  
M. Pereira
Keyword(s):  
Numerical Solution ◽  
Binary Alloys ◽  
Transient State ◽  
Stable Oxide

An approximate treatment of the transient state in the corrosion of binary alloys forming the most-stable oxide. Part I: Solid-solution alloys

1997 ◽  
Vol 47 (1-2) ◽  
pp. 91-115 ◽  
Author(s):  
F. Gesmundo ◽  
P. Castello ◽  
F. Viani ◽  
J. Philibert
Keyword(s):  
Solid Solution ◽  
Binary Alloys ◽  
Transient State ◽  
Stable Oxide ◽  
Approximate Treatment

An approximate treatment of the transient state in the oxidation of binary alloys forming the most-stable oxide. Part II: Single-phase alloys in systems with a solubility gap

1997 ◽  
Vol 47 (5-6) ◽  
pp. 525-550 ◽  
Author(s):  
F. Gesmundo ◽  
P. Castello ◽  
F. Viani ◽  
J. Philibert
Keyword(s):  
Single Phase ◽  
Binary Alloys ◽  
Transient State ◽  
Stable Oxide ◽  
Approximate Treatment

The steady-State corrosion kinetics of two-phase binary alloys forming the most-stable oxide

1996 ◽  
Vol 46 (5-6) ◽  
pp. 383-398 ◽  
Author(s):  
F. Gesmundo ◽  
P. Castello ◽  
F. Viani
Keyword(s):  
Steady State ◽  
Binary Alloys ◽  
Two Phase ◽  
Stable Oxide ◽  
Corrosion Kinetics ◽  
Kinetics Of

Oxide Scale Evolution on Binary Alloys: Transient State Kinetics from First Principles

2020 ◽  
Vol MA2020-02 (9) ◽  
pp. 1176-1176
Author(s):  
Penghao Xiao ◽  
Brandon C. Wood
Keyword(s):  
Oxide Scale ◽  
First Principles ◽  
Binary Alloys ◽  
Transient State ◽  
Scale Evolution

The kinetics of growth and the critical conditions for the formation of the most-stable oxide in the oxidation of binary alloys

1994 ◽  
Vol 42 (3-4) ◽  
pp. 285-301 ◽  
Author(s):  
F. Gesmundo ◽  
F. Viani ◽  
Y. Niu
Keyword(s):  
Binary Alloys ◽  
Critical Conditions ◽  
Stable Oxide ◽  
Kinetics Of

Three-Dimensional Diffusion in Arbitrary Domain Using Generalized Coordinates for the Boundary Condition of the First Kind: Application in Drying

2012 ◽  
Vol 326-328 ◽  
pp. 120-125 ◽  
Author(s):  
V.S.O. Farias ◽  
Wilton Pereira Silva ◽  
C.M.D.P. Silva e Silva ◽  
Antônio Gilson Barbosa de Lima
Keyword(s):  
Boundary Condition ◽  
Diffusion Equation ◽  
Numerical Solution ◽  
Numerical Solutions ◽  
Three Dimensional ◽  
Transient State ◽  
Arbitrary Domain ◽  
Time Step ◽  
Generalized Coordinates ◽  
Computational Code

This work presents a three-dimensional numerical solution for the diffusion equation in transient state, in an arbitrary domain. For this end, the diffusion equation was discretized using the finite volume method with a fully implicit formulation and generalized coordinates, for the equilibrium boundary condition. For each time step, the system of equations obtained for a given structured mesh was solved by the Gauss-Seidel method. The computational code was developed in FORTRAN, using the CFV 6.6.0 Studio, in a Windows platform. The proposed solution was validated using analytical and numerical solutions of the diffusion equation for different geometries (orthogonal and non-orthogonal meshes). The analysis and comparison of the results showed that the proposed solution provides correct results for the cases investigated. The developed computational code was applied in the simulation of the drying of ceramic roof tiles for the following temperature: 55.6 °C. The analysis of the results makes it possible to affirm that the developed numerical solution satisfactorily describes the drying processes in this temperature.

The steady-state corrosion kinetics of single-phase binary alloys with a solubility gap forming the most-stable oxide

1997 ◽  
Vol 47 (3-4) ◽  
pp. 215-235 ◽  
Author(s):  
F. Gesmundo ◽  
P. Castello ◽  
F. Viani
Keyword(s):  
Steady State ◽  
Single Phase ◽  
Binary Alloys ◽  
Stable Oxide ◽  
Corrosion Kinetics ◽  
Kinetics Of

The internal oxidation of two-phase binary alloys beneath an external scale of the less-stable oxide

1997 ◽  
Vol 47 (3-4) ◽  
pp. 355-380 ◽  
Author(s):  
F. Gesmundo ◽  
F. Viani ◽  
Y. Niu
Keyword(s):  
Internal Oxidation ◽  
Binary Alloys ◽  
External Scale ◽  
Two Phase ◽  
Stable Oxide

Analyzing reactions of single mechanoenzyme molecules by light microscopy

1992 ◽  
Vol 50 (1) ◽  
pp. 426-427
Author(s):  
Jeff Gelles
Keyword(s):  
Image Processing ◽  
Reaction Mechanisms ◽  
Transient State ◽  
Nanometer Scale ◽  
Reaction Intermediates ◽  
Enzyme Molecule ◽  
Directed Movement ◽  
Enzyme Molecules ◽  
Individual Enzyme ◽  
Single Reaction

Mechanoenzymes are enzymes which use a chemical reaction to power directed movement along biological polymer. Such enzymes include the cytoskeletal motors (e.g., myosins, dyneins, and kinesins) as well as nucleic acid polymerases and helicases. A single catalytic turnover of a mechanoenzyme moves the enzyme molecule along the polymer a distance on the order of 10−9 m We have developed light microscope and digital image processing methods to detect and measure nanometer-scale motions driven by single mechanoenzyme molecules. These techniques enable one to monitor the occurrence of single reaction steps and to measure the lifetimes of reaction intermediates in individual enzyme molecules. This information can be used to elucidate reaction mechanisms and determine microscopic rate constants. Such an approach circumvents difficulties encountered in the use of traditional transient-state kinetics techniques to examine mechanoenzyme reaction mechanisms.

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