Estimates based on the strength, size, and shape of the Atlantic razor clam (Ensis directus) indicate that the animal's burrow depth should be physically limited to a few centimeters; yet razor clams can dig as deep as 70 cm. By measuring soil deformations around burrowing E. directus, we have found the animal reduces drag by contracting its valves to initially fail, and then fluidize, the surr...

The effect of milled and micronized lactose fines on the fluidization and in vitro aerosolization properties of dry powder inhaler (DPI) formulations was investigated, and the suitability of static and dynamic methods for characterising general powder flow properties of these blends was assessed. Lactose carrier pre-blends were prepared by adding different lactose fines (Lactohale 300, 230 and ...

The continuum theory-based models, which include solid stress models and gas-solid drag are required for the modeling of flows in framework Eulerian–Eulerian method. interactions among particles characterized by their diverse behaviors at different flow regimes, including kinetic motion, particle–particle collision enduring friction. It is difficult to describe particle various regimes mathemat...

The fluidization characteristics of a prototype-fluidized bed laboratory reactor were understudied in order to investigate the suitable conditions at which the dehydrogenation reaction of butane could be carried out. To achieve this, a reactor with an effective volume of 1100ml was fabricated and coupled with temperature and pressure accessories. Zeolites were obtained from the market and clay ...

Recent experiments have investigated the response of smooth muscle cells to transient stretch-compress (SC) and compress-stretch (CS) maneuvers. The results indicate that the transient SC maneuver causes a sudden fluidization of the cell while the CS maneuver does not. To understand this asymmetric behavior, we have built a biomechanical model to probe the response of stress fibers to the two m...

Film coating of fine particles (5-20 microns) by polymers has a wide range of industrial applications, yet few techniques are commercially available that are environmentally friendly. In this study, four different techniques are considered with an ultimate goal of developing a reliable technique that is scaleable and is also environmentally friendly. Two of these techniques are fluidization bas...

As most classical fluidization technologies, Circulating Fluidized Beds (CFB) are widely employed in chemical and physical operations. However, CFB Reactors still have some disadvantages such as the non-uniform solid particles distribution backflow of near wall, which deteriorate system mixing, lead to low conversion/heat mass transfer rate. To improve performance, we propose current work study...

Natural gas hydrate (NGH) has become the most potential emerging green energy known in 21st century due to its characteristics of wide distribution, abundant reserves and clean combustion. This study designs an axial annulus situ hydrocyclone desander (AAIHD) based on drilling instruments order resolve serious problem sand production during solid fluidization NGH. The effect inlet flow rate sep...