This study reports an application of instrumental color measurement for quantifying and comparing the optical properties of high density polyethylene HDPE and low density polyethylene LDPE blend films and the effect of blending ratio and miscibility on these properties. The technique of spectrophotometry in transmission and reflectance modes can be used as a versatile tool to evaluate the color...

Miscible gas injection is one of the most effective enhanced oil recovery techniques and minimum miscibility pressure (MMP) is an important parameter in miscible gas injection processes. The accurate determination of this parameter is critical for an adequate design of injection equipment investment prospect. The purpose of this paper is to develop a new universal artificial neural network (U-A...

The effects of miscibility in interacting two-component classical fluids are relevant a broad range daily applications. When considering quantum systems, Bose–Einstein condensates provide well-controlled platform where the miscible–immiscible phase transition can be completely characterized. In homogeneous this is governed only by competition between intra- and inter-species interactions. Howev...

Poly(butylene succinate) (PBS) is one of the contaminants in Poly(ethylene terephthalate) (PET) recycling process. It known that high contents PBS PET significantly reduce properties, but effect low on has yet to be studied. This work studied influence recycled PET. Five formulations were prepared, and properties relative affinity, mechanical, thermal, disintegration under composting conditions...

Chemical reactions can impact mixing in partially miscible stratifications by affecting buoyancy-driven convection developing when one phase dissolves into the other one in the gravity field. By means of combined nonlinear simulations and experiments, we explore the power of an A + B → C type of reaction to either enhance or refrain convective dissolution with respect to the nonreactive system ...

co2 injection is an effective technique for improved oil recovery in light oil reservoirs, especially for water flooding abandoned reservoirs. in this study, the lower part of es1 reservoirs in pucheng oilfield was introduced as the target reservoir. by studying the minimum miscible pressure in co2 flooding, the reservoir could achieve miscible flooding. long core displacement experiments prove...

High-density polyethylene (HDPE) has a linear structure with very little or no branching and possesses a high degree of crystallinity, but it is difficult to process. Low-density polyethylene (LDPE) however has a chaotic structure with short and long branches and is easy to process. Blending of polyethylenes (PEs) is a common industrial practice. The principal reasons behind the blending of PEs...

In this paper, we prove the existence of weak solutions for mathematical models of miscible and immiscible ow through porous medium. An important diiculty comes from the modelization of the wells, which does not allow us to use classical variational formulations of the equations.

A nonlinear parabolic system is derived to describe compressible miscible displacement in a porous medium in non-periodic space. The concentration is treated by a characteristics collocation method, while the pressure is treated by a finite element collocation method. Optimal order estimates in L2 is derived.