A Hamilton-Jacobi Framework for Modeling Geological Folding and Deformation

Modeling of Surface Segregation for Binary Alloys in Vacuum and Gas Environments: Applied to Pd-alloys

Computational modeling offers the possibility to design alloys in a cheaper and faster way. A model for surface segregation for binary alloys in vacuum and by adsorption and absorption of gases was developed and applied. The proposed model was used in conjunction with the Miedema semi-empirical model for the calculation of enthalpies of solution...

Quantitative Application Data Flow Characterization for Heterogeneous Multicore Architectures

Recent trends show a steady increase in the utilization of heterogeneous multicore architectures in order to address the ever-growing need for computing performance. These emerging architectures pose specific challenges with regard to their programmability. In addition, they require efficient application mapping schemes to fully harness their...

The Abelian Sandpile Model on a Random Binary Tree

We study the abelian sandpile model on a random binary tree. Using a transfer matrix approach introduced by Dhar and Majumdar, we prove exponential decay of correlations, and in a small supercritical region (i.e., where the branching process survives with positive probability) exponential decay of avalanche sizes. This shows a phase transition...

High-low search for a point in an interval

Analysis of the high-low search game for a point on an interval. By limiting the number of guesses for the searcher, it is possible to study the game numerically. The principal motivation for this analysis is an old and open question due to Baston, Bostock and Alpern: is the optimal strategy for the searcher pure? The answer is no if the number...

Dynamic modelling and control of the frictional diffusion separation process

FricDiff is short for frictional differences and it describes a gas or vapour separating process which has the potential to reduce both energy requirements as well as capital investments. To develop a firm basis for future applications, the dynamics prediction and the control of the process were still missing from the research. Therefore the...

Propylene/propane mixture adsorption on faujasite sorbents

The adsorption of propylene and propane on zeolite NaX with and without a saturated (36 wt%) amount of CuCl have been investigated. The single component adsorption isotherms could be well described with a Dual-Site Langmuir model. The dispersion of CuCl results in a decrease of the maximum adsorption capacity of the zeolite for both components....

Implementation and evaluation of a binary mixture model and Fe-analysis on water saturated soil

A binary mixture model for soils has been formulated and analyzed. In the model one of the constituents is soil and the other constituent an incompressible liquid. The effects of water are included by formulating a mixture model is formulated as an extension of an existing non-associated elasto-plastic material model for granular materials. This...

Zener solutions for particle growth in multi-component alloys

In this paper the Zener theory on precipitate growth in supersaturated alloys for planar, cylindrical and spherical geometries is extended to multi-component alloys. The obtained solutions can be used to check the results from numerical simulations under simplified conditions. Further, the multi-component solutions are used to derive the quasi...

The apparent activation energy for the dissolution of spherical Si-particles in AlSi-alloys

A numerical model for the dissolution of spherical particles in binary alloys under mixed mode control

A statistical performance evaluation of measured wideband indoor channels at 2.4, 4.75 and 11.5 GHz

Wideband indoor propagation measurements at 2.4, 4.75 and 11.5 GHz which were collected at the FEL-TNO laboratory, are statistically evaluated. The correlation of power delay profiles received within a short distance is examined for line of sight and obstructed cases. The variation of the Rician factor K, rms delay spread, dominant power and the...

Role of interface mobility on the kinetics of diffusional transformation in Fe-C and Fe-Mn alloys

Vapor phase manufacture of porous TiN deposits on/in porous supports. Vapor phase manufacture of materials

Gas-to-particle conversion in the particle precipitation-aided chemical vapor deposition process. II: Synthesis of the perovskite oxide yttrium chromite. The role of aerosols in materials processing

Gas-to-particle conversion in the particle precipitation-aided chemical vapor deposition process. I: Synthesis of the binary compound titanium nitride. The role of aerosols in materials processing

Uniaxial model for a gas loaded variable conductance heat pipe

A new uniaxial model for a gas loaded variable conductance heat pipe (VCHP) is developed. This model takes into account the diffusion at the vapour-gas interface as well as the inertial effects of the moving vapour. Only steady-state conditions are considered. The generally accepted Edwards /Marcus model will be shown to be a first order...

An improved flat front model for a gas loaded variable conductance heat pipe

A uniaxial flat front--"theory is presented for a gas loaded variable conductance heat pipe. The theory takes into account the inertial effects of the moving vapour, which can grow large under certain circumstances, but neglects the axial heat conduction of the wall and wick. A limited number of numerical examples indicates excellent agreement...