Learn More
Chlorinated water is commonly used in industrial operations to wash and sanitize fresh-cut, minimally processed produce. Here we compared 42 human outbreak strains that represented nine distinct Escherichia coli O157:H7 genetic lineages (or clades) for their relative resistance to chlorine treatment. A quantitative measurement of resistance was made by(More)
Salmonella enterica serovars Enteritidis and Typhimurium are the leading causative agents of salmonellosis in the United States. S. Enteritidis is predominantly associated with contamination of shell eggs and egg products, whereas S. Typhimurium is frequently linked to tainted poultry meats, fresh produce, and recently, peanut-based products. Chlorine is an(More)
Cross-protection represents a considerable challenge in the food industry where hurdled interventions are often employed to reduce Salmonella contamination. The heat resistance of Salmonella strains from five serotypes (i.e., Typhimurium, Enteritidis, Tennessee, Thompson and Hartford) at 70 °C was determined by measurement of viable cell populations before(More)
In North America, outbreaks of Salmonella have been linked to low-water activity (aw) foods, such as nuts and seeds. These outbreaks have implicated an assortment of Salmonella serotypes. Some Salmonella serotypes (e.g., Enteritidis and Typhimurium) cause high proportions of salmonellosis. Nevertheless, there has recently been an emergence of uncommon(More)
The operation of chemical processes is inherently subject to uncertainty. Traditionally, uncertainties have been accounted for in system design by discretizing the uncertainty space and considering the resulting ensemble of scenarios in solving the design optimization problem. Scenario-based approaches are computationally demanding and can rapidly become(More)
Model predictive control (MPC) has become the de-facto standard for multivariable control in the process industries. MPC systems are able to handle complex dynamics, interactions and constraints, but are vulnerable to plant-model mismatch. The deviation of the process model from the plant is an inevitable phenomenon, caused by drifting equipment properties(More)
The Salmonella Syst-OMICS consortium is sequencing 4,500 Salmonella genomes and building an analysis pipeline for the study of Salmonella genome evolution, antibiotic resistance and virulence genes. Metadata, including phenotypic as well as genomic data, for isolates of the collection are provided through the Salmonella Foodborne Syst-OMICS database(More)
Processing of biomolecular sequences using communication theory techniques provides powerful approaches for solving highly relevant problems in bioinformatics by properly mapping character strings into numerical sequences. We provide an optimized procedure for predicting protein-coding regions in DNA sequences based on the period-3 property of coding(More)
During regular use, mobile devices generate significant amounts of heat. In this paper, we discuss the use of phase-change materials (PCM) as an energy storage medium to lower the energy consumption of temperature control devices in mobile systems. We adopt a systems perspective and show that the fundamental effect of latent-heat storage is to increase the(More)