Sensitivity analysis accurately directs water-loss reduction interventions

Sensitivity Analysis of Water Flooding Optimization by Dynamic Optimization

This study concerns the scope to improve water flooding in heterogeneous reservoirs. We used an existing, in-house developed, optimization program consisting of a reservoir simulator in combination with an adjoint-based optimal control algorithm. In particular we aimed to examine the scope for optimization in a two-dimensional horizontal reservoir containing a single high permeable streak, ...

Rab2 directs a stop-loss program

A s they travel through the cell body to neuronal axons, dense core vesicles (DCVs) shed un-wanted cargo and mature into compact packages of neuropeptides and other factors that modulate signaling across the synapse. Two groups reveal that the small GTPase Rab2 ensures that DCVs don't lose anything important on their journey to the nerve terminal (1, 2). Regulated secretion of DCVs and small sy...

Sensitivity analysis of the Lanczos reduction

For a given real n n matrix A and initial vectors v 1 and w 1 , we examine the sensitivity of the tridiagonal matrix T and the biorthogonal sets of vectors of the Lanczos reduction to small changes in A, v 1 and w 1. We also consider the sensitivity of the developing Krylov subspaces.

2D Dimensionality Reduction Methods without Loss

In this paper, several two-dimensional extensions of principal component analysis (PCA) and linear discriminant analysis (LDA) techniques has been applied in a lossless dimensionality reduction framework, for face recognition application. In this framework, the benefits of dimensionality reduction were used to improve the performance of its predictive model, which was a support vector machine (...

Rethinking poverty reduction interventions