Shallow water model for aluminium electrolysis cells with variable top and bottom

The MHD wave instability in commercial cells for electrolytic aluminium production is often described using ‘shallow water’ models. The model [1] is extended for a variable height cathode bottom and anode top to account for realistic cell features. The variable depth of the two fluid layers affects the horizontal current density, the wave development and the stability threshold. Instructive examples for the 500 kA cell are presented.

Moment decay rates of solutions of stochastic differential equations

The objective of this paper is to investigate the p-ίh moment asymptotic stability decay rates for certain finite-dimensional Itό stochastic differential equations. Motivated by some practical examples, the point of our analysis is a special consideration of general decay speeds, which contain as a special case the usual exponential or polynomial type one, to meet various situations. Sufficient conditions for stochastic differential equations (with variable delays or not) are obtained to ensure their asymptotic properties. Several examples are studied to illustrate our theory.

Employee reward: alternatives, consequences and contexts

[Book Contents] Introducing Employee Reward Systems; Conceptual and Theoretical Frameworks; The Legal, Employment Relations and Market Context; Base Pay Structures and Relationships; Pay Setting, Composition and Progression; Variable Pay Schemes; Benefits; Pensions; Non-Financial Reward; Rewarding Directors and Executives; International Reward Management; Employee Reward within HRM.