Oxygen transfer has been studied in the Pseudomonas ovalis fermentation that quantitatively converts glucose into gluconic acid. The rate of oxygen uptake by this system was correlated with aeration rates and agitator speeds over wide ranges of these variables, by the introduction of a liquid expansion term. The technique described provides a biological method for studying oxygen transfer in th...

Methods for the mass isolation of diverse organs from small animals are described. They involve novel devices: a mechanical dissecting system, a centrifugal agitator for the separation of fibrillar from globular particles, and a settling chamber for the fractionation at unit gravity of particles with sedimentation velocities above the useful range for centrifugation. The application of these me...

By applying the dimensional analysis approach to a lab-scale stirred tank process, influence of process parameters on foamability three model surfactants: SLES, Tween 20 and Brij L23 is investigated modelled. For validation law, theoretical complemented with an experimental work varying such as agitator rotational speed rate (N), mixing time (tm) bottom clearance (Cb). The foam expansion surfac...

Notwithstanding the numerous studies in the last decades to prevent runaway reactions, the maintenance of stability in chemical reactors is still a current issue in industrial chemical plants. There is an urgent need to implement an efficient and robust algorithm capable of detecting in advance anomalous behaviours of the reactor temperature during exothermic processes, in order to take appropr...

Thromboelastography® (TEG®) is used to guide clinical decision-making across many medical and surgical subspecialties. Advances in this field have resulted in analyzers becoming increasingly user friendly, and have led to a reduction in the possibility of user error. The new TEG®6s does not come with the warnings of vibration and movement avoidance of its predecessor. It was decided to test the...

Stirred vessels are used to facilitate mixing processes across a wide range of industries. Their performance can often be predicted with certain characteristics the agitator, like dimensionless power and flow numbers. Since there exists large number agitator designs geometries, it is desirable able predict these using models rather than rely on previous experimental data. In this study, we use ...