Molecular dynamics (MD) and volume of fluid (VOF) are powerful methods for the simulation dynamic wetting at nanoscale macroscale, respectively, but massive computational cost MD sensitivity uncertainty boundary conditions in VOF limit their applications to other scales. In this work, we propose a multiscale strategy by enhancing simulations using self-consistent derived from MD. Specifically, ...

This paper proposes an MPC - based (model predictive control) scheme to control active and reactive powers of DERs (distributed energy resources) in a grid - connected mode (either through a bus with its associated loads as a PCC (point of common coupling) or an MG (micro - grid)). DER may be a DG (distributed generation) or an ESS (energy storage system). In the proposed scheme, the set - poin...

In this paper, three innovative 3-D geometries for flow fields of cathode and anode have been developed to investigate the comparative impact of increasing the multiplicity of the involved anode-cathode channel surface contact on the efficiency of electrochemical reaction via the same membrane electrode assembly (MEA) active area. In the introduced new models, each anode channel includes two, t...

Heat transfer coefficient in nucleate pool boiling near critical heat flux at least one orderhigher than the convectional heat transfer modes. In this paper, an experimental setup isdesigned and fabricated to investigate the mechanism of heat transfer from boiling surface tobulk liquid near critical heat flux. The images of pool boiling near the high heat flux regionreveals that the individual ...

introduction drying foods, fruits and vegetables is a suitable method to reduce post-harvest losses of the crops. drying is considered as a simultaneous heat and mass transfer process. various physical, chemical and nutritional changes occur during drying of foods and are affected by a number of internal and external heat and mass transfer parameters. external parameters may include temperature...

this study was carried out to 1. determine spatial variations of heavy metal deposition in agricultural soils of two rural communities (ouledbouaicha and tazakourte) of about 5790 ha in a mining area near marrakech city in morocco; 2. to assess the extent of metallic pollution generated by the mining activity and; 3. to identify the key mechanism responsible for this contamination and its relat...

background: health hazards associated with exposure due to the natural radioactivity which is a part of our physical environment are of great concern. in order to assess the risks associated with exposure due to the natural radioactivity in soil and building materials, extensive studies have been carried out all over the world. the most commonly encountered radionuclide’s are 238u, 232th, their...

Fe3O4 nanofluid fully developed forced convection inside a copper tube is empirically investigated under the effect of a magnetic field. All of the investigations are performed under laminar flow regime (670≤Re≤1700) and thermal boundary conditions of the tube with uniform thermal flux. The tube is under the effect of a magnetic field in certain points. This research aims to study the effect of...

Various factors can be responsible for the flow of incompressible fluid under gravity. Torricelli's theorem gives relationship between efflux velocity an incompressible, gravity-driven from orifice and height liquid above it. The concept original derivation Torricelli’s is limited in application because certain inherent assumptions method derivation. An alternate use Bernoulli’s principle. Howe...

in this study, the chemical factors effect of metal ions, surfactant, oxidizing agents and enzyme inhibitors on the activity of trypsin and chymotrypsin of rainbow trout fry were considered. the results showed that k+ and na+ had not significant decrease on trypsin and chymotrypsin activity than did those from control (p>0.05). ca2+ and mg2+ showed a significant increase in activity of trypsin ...