It is known that at the event scale, evaporation losses of rainfall intercepted by canopy are a few millimeters, which often not much in comparison to other stocks water balance. Nevertheless, yearly number times filled and then depleted can be so large interception flux may become an important fraction rainfall. Many accurate models describe wet have been proposed. However, they require parame...

A simple set of equations for bubbly flow through a vertical tube is rigorously derived by means of a scale analysis from the realistic equations posed by Pauchon. It is shown that under steady flow conditions the void fraction will relax from its value at the inlet towards an asymptotic value within only a short distance of the inlet. The relationship between the inlet void fraction and the im...

At Drexel University, I was testing the 8-inch, 13 stages, R1408 PMTs which will be used for the inner vetos of the Double Chooz experiment [1]. These PMTs were used in the IMB [2] and SuperKamiokande [3] experiments. This testing allowed a better understanding of their working. In this paper I propose a model inspired from observations during the testing period. The first aim of this model is ...

Model predictive controller is widely used in industrial plants. Uncertainty is one of the critical issues in real systems. In this paper, the direct adaptive Simplified Model Predictive Control (SMPC) is proposed for unknown or time varying plants with uncertainties. By estimating the plant step response in each sample, the controller is designed and the controller coefficients are directly ca...

Because of the substantial difference in stiffness between matrix and nanotube in CNT composite, the stress transfer between them controls their mechanical properties. This paper investigates the said issue, analytically and numerically, in axial load using representative volume element (RVE). The analytical model was established based on the modified Cox’s shear lag model with the use of some ...

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...

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...