Random sampling in compressive sensing (CS) enables the compression of large amounts of input signals in an efficient manner, which is useful for many applications. CS reconstructs the compressed signals exactly with overwhelming probability when incoming data can be sparsely represented with a few components. However, the theory of CS framework including random sampling has been focused on exa...

In this work, a fast, simple and economic method is proposed for the determination of imazalil in water samples by flow injection photoinduced chemiluminescence. In this method, imazalil degrades in basic media through the use of a photoreactor, and the resulting photofragments react with ferricyanide and generate the direct chemiluminescence signal. To the authors' knowledge, this is the first...

We study a single product two-period production/inventory model, in which the demands at each period are independent random variables. To optimally satisfy these random demands, quantities can be produced at the beginning of each period using slow or fast production mode, under capacity constraints. In addition to the usual decision variables for such models, we consider that a certain quantity...

In cases where disturbances of economic importance have a dynamic character and if they occur frequently compared to the controlled plant responses, dynamic optimization is more suitable than traditional RTO. However, in many cases the optimal operation is the same as maximum plant throughput. To realize maximum throughput, the bottleneck(s) must be identified and maximum flow at the bottleneck...

The growth of clusters into cluster collections increases potential points of failures, requiring the implementation of a fault-tolerance scheme. The CoHNOW is organized as a hierarchical master-worker scheme and clusters may be geographically distributed and interconnected by Internet. This paper describes a system of Fault-Tolerant protection by Data Replication (FT-DR), based on preserving c...

Renewable energy sources (RES) are very likely to continue the upward capacity trend witnessed in the past years. The reasons for adoption are varied and respond to both market pressures, influence of government intervention and a raised awareness of the consequences on the environment of the current generation fleet. The change from dispatchable generation to an environment in which Independen...

A proposed single-product, stochastic, two-period inventory control model combines demand forecast updating with the flexibility of two supply sources. Demand is modeled by two independent, random variables over a two-period selling season. At the beginning of the first period, two quantities are ordered using two different supply options: a local supplier who delivers the ordered quantity imme...

It may be useful to start with a brief description, from PJM’s point of view, of economic dispatch. We consider it the lifeblood of any transmission operator, whether a vertically integrated utility or an RTO like PJM. Security constrained economic dispatch involves the use of a mathematical formula, an algorithm, to match up the lowest-cost resources needed to reliably serve the load every hou...

objective: to evaluate the current scientific evidence for the applicability, safety and effectiveness of pathways of enhanced recovery after emergency surgery (eras). methods: we undertook a search using pubmed and cochrane databases for eras protocols in emergency cases. the search generated 65 titles; after eliminating the papers not meeting search criteria, we selected 4 cohort studies and ...