In this note, the dimensions of elliptic and semielliptic tubes in which capillary rise starts oscillating about its Jurin’s height are determined. Comparisons with classical circular semicircular made.

Excessive noise generated by roller coasters during operation is a significant issue for amusement parks located near residential and business districts. Previous work showed that filling the rails with sand and pea gravel can provide noise reduction levels of up to 10 and 15 decibels. However, using damping materials may require additional support structures to accommodate the weight increase ...

Glucose oxidase, uricase, and urease were immobilized on the interior surface of activated polyamide tubing. The shelf-life of such enzyme bearing tubes was at least six months. The tubes were used for continuous-flow analysis of glucose, uric acid, and urea with conventional systems and with hybrid micro-scale systems in which modules of different manufacture were combined. The length of enzym...

The fouling characteristics of micron-scale magnesium oxide particles on the inside wall circular tube and converging-diverging are studied in this paper. An improved method for modeling tubes was developed based Eulerian method. particle deposition mechanism model includes: diffusion deposition, turbulent thermophoretic gravity deposition. verified by comparison with experimental results from ...