this paper is concerned with asphaltene deposition in fluid flowing through pipelines. brownian diffusion and drag, gravitational, thermophoresis, buoyancy, and shear removal are considered as possible mechanisms in the asphaltene deposition process. the thermo-physical properties of the fluid were obtained from iranian oil fields. a model was used in the pipeline deposition modeling to predict...

Strongly confined NaVO$^+$ segregation and its thermo-responsive functionality at the interface between simple sputter-deposited amorphous vanadium oxide thin films soda-lime glass was substantiated in present study by in-situ temperature-controlled Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS). The obtained ToF-SIMS depth profiles provided unambiguous evidence for a reversible tran...

0031-9201/$ see front matter 2013 Elsevier B.V. A http://dx.doi.org/10.1016/j.pepi.2013.03.001 E-mail address: [email protected] The relationship between isotope diffusion coefficient and electrical conductivity is examined for a material where a dominant charge-carrying atomic species (e.g., hydrogen) is present as various forms with different diffusion coefficients (e.g., two proton...

In order to address the impact of concentration gradients on chemistry – turbulence interaction in turbulent flames, REDIM reduced is constructed incorporating scalar dissipation rate, which a key quantity describing mixing process. This achieved by providing variable gradient estimate evolution equation. such case, tabulated as function coordinates and rate an additional progress variable. The...

Harvesting cultivated macrophages for tissue engineering purposes by enzymatic digestion of cell adhesion molecules can potentially result in unintended activation, altered function, or behavior of these cells. Thermo-responsive polymer is a promising tool that allows for gentle macrophage detachment without artificial activation prior to subculture within engineered tissue constructs. We there...

In order to investigate chlorine isotope behaviour, it was necessary to develop analytical methods and methods for data interpretation. The accuracy, precision and amount dependency of chlorine isotope ratio analyses performed with gas chromatography quadrupol mass-spectrometry (GC-qMS) were evaluated for two Agilent and Thermo instruments. The calibration of raw data to SMOC scale (Standard Me...

There is a growing interest in modulating the temperature under the illumination of light. As a heat source, metal nanoparticles (NPs) have played an important role to pave the way for a new branch of plasmonics, i.e., thermo-plasmonics. While thermo-plasmonics have been well established in photo-thermal therapy, it has received comparatively less attention in materials science and chemistry. H...

The phenomenon of convective flow with heat and mass transfer has been studied extensively due to its applications in various fields. effects nonlinear thermal radiation (NLTR), slip, thermal-diffusion (Soret) diffusion-thermo (Dufour) on magenoto-hydrodynamic (MHD) towards a stretching cylinder the presence triple stratification (TSF) are investigated this paper. governing equations transforme...