This study is based on the hypothesis that bubbles-induced vortex flows could enhance release of carbon dioxide (CO2) from a glass effervescent wine. To provide tangible evidence, we conducted series experiments, first which aimed to correlate filling height and bubble-induced flow dynamics with CO2 volume flux released vessel during tasting. The results obtained through micro-weighing PIV expe...

Mixing is discussed in relation to stirring as reflected in the geometry of advected interfaces, the behaviour of fluid-element pairs and their separation rates. Stirring is different in vortical, chaotic and turbulent flows because of qualitative differences in spatio-temporal flow structure, thus giving rise to different mixing laws. Important applications of the mixing and stirring propertie...

A rectangular rod is placed in a flow field flowing parallel to a flat plate. Effect of chord-thickness ratio of rectangular rod on developing vortex shedding downstream to the rod is studied. Then, for each one of the aspect ratios, the distance of the rod from the neighboring flat plate is reduced until the rod sticks to the flat plate. In each case, the effect of the flat plate boundary laye...

This paper presents an experimental design approach to the process parameter optimization for compocasting of A356-SiCp composites. Toward this end, parameters of stirring temperature, stirring time, stirring speed and SiC content were chosen and three levels of these parameters were considered. The D-optimal design of experiment (DODE) was employed for experimental design and analysis of resul...

Bottom-up approach is a potentially useful tool for hydrogel assembly of cell-laden individual building blocks. In this article, we assembled individual building blocks of photocrosslinkable microgels in a rapid and controlled manner. Individual building blocks of poly(ethylene glycol) (PEG) microgels with square and hexagonal shapes were fabricated by using a photolithography technique. Indivi...

Approximately 15 ml. of venous blood were withdrawn and expressed into a chilled tube containing 0.30 ml. (300 U.S.P. units) of sodium heparin solution. After thorough but gentle stirring, 10.0 ml. were transferred by Folin pipette to 10 ml. of ice cold 10 per cent trichloroacetic acid. The mixture was thoroughly homogenized with a heavy stirring rod and centrifuged in the cold. The supernatant...

BACKGROUND The present work was designed to appraise how different extraction solvents and techniques affect the extractability of antioxidant and antimicrobial components from Lantana camara (L. camard) flowers. MATERIAL AND METHODS Four extraction solvents including 100% methanol, 80% methanol, 100% ethanol and 80% ethanol coupled with three extraction techniques namely stirring, microwave-...