Today's manufacturing systems and equipment must perform at levels thought impossible a decade ago. Companies must push operations, quality, and efficiencies to unprecedented levels while holding down costs. In this new economy, companies must be concerned with market shares, equity growth,...

Information of sensitivity analysis, in a linear programming problem, is usually more important than the optimal solution itself. However, traditional sensitivity analysis, which perturbs exactly one coefficient and then determines the range preserving the optimality of the current optimal base,...

Assuming a normal-Wishart modelling framework we compare two methods for finding outliers in a multivariate regression (MR) system. One method is the add-1-dummy approach which needs fewer parameters and a model choice criterion while the other method estimates the outlier probability for each...

The paper proposes a new approach for analysing the stability of Composite Indicators. Starting from the consideration that different subjective choices occur in their construction, the paper emphasizes the importance of investigating the possible alternatives in order to have a clear and...

Thermal bridges are areas of risk of the building envelope, inducing uncontrolled increments of heat transfer, mainly in winter. This notwithstanding, thermal bridges are often neglected in energy audits, since many numerical codes for building energy simulations adopt heat transfer models based...

Mortar joints which cut across insulation layers in building walls act as thermal bridges that increase transmission loads and reduce wall thermal resistance (R-value). A computer model based on the finite-volume method, which has been previously validated, is used to quantify effects of mortar...