A parametric computational model of the human carotid artery bifurcation is employed to demonstrate that it is only necessary to simulate approximately one-half of a single heart pulse when performing a global exploration of the relationships between shear stress and changes in geometry. Using design of experiments and surface fitting techniques, a landscape is generated that graphically depict...

We present two algebraic methods to solve the parametric optimization problem that arises in nonlinear model predictive control. We consider constrained discrete-time polynomial systems and the corresponding constrained finite-time optimal control problem. The first method is based on cylindrical algebraic decomposition. The second uses Gröbner bases and the eigenvalue method for solving system...

A parametric model of the complex time-dependent geometry of the ventricles of the human heart is constructed. The geometry model is created by means of a boundary value approach, solving an elliptic partial differential equation to generate a representation of the inner surface of the ventricles. The technique provides a closed-form description of the geometry with the advantage that the geome...

Over the last two decades, urban geometry has been shown to be a key determinant of microclimatic conditions in areas. This study uses Ladybug-tools, plugins Grasshopper3D optimise building heights, street widths and orientation maximise outdoor thermal comfort, represented by diurnal average Universal Thermal Climate Index (UTCI). In hot-arid climate Cairo, Egypt, optimised parameters symmetri...

The research focused on the application of tungsten inert gas (TIG) welding method mild steel metal materials and its optimization input factors along with mechanical response parameters using surface (RSM). study has reviewed many works alongside literature related to study, also revealed that specific studied weld bead geometry properties weldment have not been best researchers' knowledge. ma...