Ceramic materials due to their high compressive strength and hardness have been one of prime candidates in armor design in particular when high level threads (impact velocity above 600m/s) are involved. The aim of this work is to investigate ballistic impact resistance potential for a target plate with novel ceramic inserts as against ceramic tiles. Two size 98% alumina (AL2O3) base ceramic i...

The paper presents results of numerical and experimental analyses a fin-and-tube air-water heat exchanger. analysed device is one-row exchanger with finned elliptical tubes. aim the to investigate impact controlled non-uniform inflow air on performance. was modelled numerically using ANSYS Fluent program. developed model applied simulate operation in conditions uniform air. Cases an uncontrolle...

objective: microleakage in the gingival floor of class ii composite restorations can compromise the marginal adaptation of the filling material to the cavity edges. the aim of this study was to evaluate the effect of light conducting cylindrical inserts in decreasing the microleakage of the gingival floor in cavities 1mm below the cej. materials and methods: eighty maxillary first molars were r...

the objective of this investigation was the development of chitosan/xanthan polyelectrolyte complex based mucoadhesive nasal insert of promethazine hydrochloride a drug used in the treatment of motion sickness. a 32 factorial design was applied for preparing chitosan/xanthan polyelectrolyte complex and to study the effect of independent variables i.e. concentration of xanthan [x1] and concentra...

Intranasal route, ensuring suitable bioavailability of medicines under circumvention of the gastrointestinal degradation and hepatic first-pass elimination, has been a popular choice for drug delivery. Among nasal dosage forms, mucoadhesive solid inserts have been shown to resist mucociliary clearance and provide a prolonged nasal residence time. Hence, the purpose of this study was the prepara...

The critical tube diameter problem for quasi-detonations is studied via experiments and two-dimensional numerical simulations based on the reactive Euler equations. In experiments, quasi-detonation in stoichiometric acetylene-oxygen mixtures generated rough-walled tubes with three different diameters, where wall roughness introduced by using spiral inserts wire diameters. Photodiodes are placed...

INTRODUCTION Tobacco companies have a long tradition of including promotional material within cigarette packs, such as cigarette cards and coupons. Only in Canada are they required, by the government, to include educational material within cigarette packs, in the form of inserts highlighting the benefits of quitting or providing tips on how to do so. METHODS Twenty focus groups were conducted...