Backward-facing step (BFS) is a model that provides several applicative features in engineering. The complex phenomena of BFS flow have crucial impact on any application. Therefore, this study comprehensively investigates the characteristics with various shapes. backward-facing (F-BFS) fillets were tested at intervals Reynolds number 50 smaller than Re 400 using CFD approach. Based computationa...

Flow topology and unsteady cavitation dynamics in the wake of a backward facing step was investigated using high speed videography time-resolved X-ray densitometry, along with static dynamic pressure measurements. The measurements are used to inform understanding underlying mechanisms observed flow as they related shock wave induced instabilities. differences cavity behavior at different number...

conclusions the designed safe irrigator syringe seems to be applicable in wound irrigation and superior to the conventional devices regarding efficacy and user comfort. results all of the interns stated that the new device is quite applicable for wound washing and is easy to handle. nine interns believed that safe irrigator syringe is superior to the conventional devices regarding efficacy and ...

OBJECTIVES To quantify the frequency of improper child safety seat use and to identify the most common mistakes in safety seat use, so that priorities for anticipatory guidance about misuse can be identified. DESIGN Descriptive survey of types and frequency of safety seat misuse. SETTING Eleven safety seat "checkups" sponsored by the Louisiana SAFE KIDS Coalition in southeastern Louisiana i...