Thermoacoustic functions are important parameters of one-dimensional codes used for the design of thermoacoustic engines. The thermal and viscous thermoacoustic functions allow the inclusion of three dimensional effects in one-dimensional codes. These functions are especially important in the regenerator of a thermoacoustic engine, where the thermoacoustic heat pumping occurs. Even though analy...

Membrane separation is known as an efficient technique for the oily wastewater treatment. Therefore, in the present study, sulfonated poly (ether ether ketone) (SPEEK) was introduced into the polysulfone (PSF) solution in order to enhance the hydrophilicity and the membrane structure for the oil–water separation. The hollow fiber membranes were fabricated via a phase-inversion process. The memb...

In the current work, the effect of surface morphology on light emission property and absorption behavior of quasi-columnar macro-porous silicon (PS) was investigated. PS structures with different morphology were synthesized using photo-electrochemical etching method by applying different etching current densities. SEM micrographs showed that empty macro-pores size and porosity of PS layers were...

The passage of a bubble and the required energy for its motion through confining pore can potentially be affected by surface roughness geometry pore. an isolated passing four different geometries (three circular pores, smooth 2 with roughness, sharp triangular pore) is investigated. shape deformed these was evaluated to determine pressure drop across hence driving force cause motion. results in...

Leakage mitigation methods are an important part of reservoir engineering and subsurface fluid storage, in particular. In the context multi-phase systems e.g., CO2 a reduction intrinsic permeability is not only parameter to influence potential flow or leakage; parameters, such as relative capillary pressure, key parameters that likely be influenced by pore-space due leakage methods, induced pre...

We investigate unforced and forced translocation of a Rouse polymer (in the absence of hydrodynamic interactions) through a silicon nitride nanopore by three-dimensional Langevin dynamics simulations, as a function of pore dimensions and applied voltage. Our nanopore model consists of an atomistically detailed nanopore constructed using the crystal structure of β-Si(3)N(4). We also use realisti...