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Abstract. In this paper, we analyze a stochastic model representing batch fermentation in the process of glycerol bio-dissimilation to 1,3-propanediol by klebsiella pneumoniae. The stochasticity in the model is introduced by parameter perturbation which is a standard technique in stochastic population modelling. Thus, based on the nonlinear deterministic dynamical system of glycerol bioconversi...

the estimation of metallurgical parameters of flotation process from froth visual features is the ultimate goal of a machine vision based control system. in this study, a batch flotation system was operated under different process conditions and metallurgical parameters and froth image data were determined simultaneously. algorithms have been developed for measuring textural and physical froth ...

measurement system analysis is a vital component for many quality improvement initiatives. It is important to assess the ability of a measurement system to detect meaningful differences in process variables. In many instances, it is possible to design an experiment in which the level of variation attributed to the operator, parts and the operator by part interaction effect can be assessed. This...

Parallel processing is the key to fulfill the high demands on computational resources in scientific computing. This has further pushed researches in High Performance Computing into the mainstream. Numerous powerful computer systems are then born. Especially, low-cost powerful clusters, which are set up by connecting many personal computers/workstations in a high speed network, were developed ra...

Fed-batch essays using yeast Phaffia rhodozyma were performed to obtain high astaxanthin concentrations. The yeast was grown over an inexpensive media obtained from the Yucca fillifera date. Feeding was carried out through implantation of a pH-stat control system. Biomass (28.7 mg/l) and pigment (18 mg/l) concentration three folded those that were obtained by previous batch cultures.

abstract the utility of carbon paste electrode for the determination of flavoxate hcl modified with flavoxate-tetraphenylborate (flx-tpb) and flavoxate-phosphotungestic acid (flx-pta) ion-pairs in batch mode is demonstrated. the electrodes revealed a nernstian response over a wide concentration ranges 1.39×10-5-1x10-2 mol l-1 and1×10-5-1x10-2 mol l-1 using flx-tpb and flx-pta, respectively. the...

In this paper we consider an imperfect production system which produces good and defective items and assume that defective items can be reworked. Due to the nature of rework process we do not restrict the rework rate to be equal to normal production rate or constant and assume that it is a random variable with an arbitrary distribution function. We also assume as it is true in most real world s...

This paper describes a case of integrating Siebel CRM (Customer Relationship Management) with Finnish Red Cross (FRC) training-site application. The main focus is on evaluating a suggested batch-transfer based integration architecture using use case scenarios and Software Architecture Analysis Method (SAAM) method. The batch approach is compared against synchronous web service based architectur...