Weperformexperimental andnumerical studies of a shock tubewith an open end.The purpose is to investigate the impulse due to the exhaust of gases through the open end of the tube as amodel for a partially filled detonation tube as used in pulse detonation engine testing.We study the effects of the pressure ratio (varied from3 to 9.2) and the volume ratio (expressed as fill fractions) between the...

Little progress has been made in modeling intake regulation in spite of the many mechanisms identified as important. A model with relatively simple inputs was developed that included compartments for protein, soluble carbohydrate, digestible fiber, and very slowly digesting fiber. Distention and chemostatic feedbacks were combined using a previously published equation. The ratio of current rumi...

Aim: To evaluate the bottom/top hardness ratio (B/T) and dentin bonding stability of conventional bulk-fill resin composites in high c-factor preparations. Methods: Regular (Tetric N-Ceram – TNC, Polofil Supra PFS), regular Bulk fill TBF, Admira Fusion X-tra AFX), low viscosity N-flow TNF, Base XTB) were used to restore 180 conical The specimens randomly distributed 12 groups (n = 15) according...