In this work, an equation of state has been utilized for thermodynamic modeling of aqueous electrolyte solutions. The proposed equation of state is a combination of simplified statistical associating fluid theory (SAFT) equation of state (similar to simplified PC-SAFT) to describe the effect of short-range interactions and mean spherical approximation (MSA) term to describe the effect of long-r...

In this paper we discuss methods for subset selection for a non-linear least squares parameter estimation problem. Through the use of these algorithms, we partition the parameter space into a linear independent and a linearly dependent set. By identifying these subsets, we are able to gain further into model dynamics. We then apply subset selection techniques to a simplified model describing th...

A unified critical state model has been developed for both clean sand and silty using the modified Cam-clay (MCC). The main feature of proposed is a new line equation in e-ln(p) plane that capable handling straight curved test results. With this feature, error calculating plastic volumetric strain is, theory, eliminated. Another crucial transformed stress tensor based on SMP (spatially mobilize...

The paper describes a simple analytical framework to be used when designing control algorithms for systems of specific type – in which the state derivatives go in feedback as accelerometer signals, and the overall controller explicitly exhibits an algebraic disturbance feedback loop. A simplified hydrofoil craft linear model is treated as an example. The method proposed combines all the approac...