Results 91 to 100 of about 1,778,184 (292)

Using the Lubrication Approximation to Model the Effects of Viscosity in DEM Simulations for Complex Flow Regimes

open access: yesKONA Powder and Particle Journal
This study explores an efficient approach to modelling the flow of particles in wet granular systems using the Discrete Element Method (DEM). Typically, when particles move in a viscous fluid, DEM is coupled with Computational Fluid Dynamics (CFD) or ...
David N. de Klerk   +3 more
doaj   +1 more source

Hm Convergence of the Second-Grade Fluid Equations to Euler Equations in ℝd

open access: yesDiscrete Dynamics in Nature and Society, 2020
In this paper, we investigate an approximation of the Euler equation by the second-grade fluid equations in ℝdd=2,3. The convergence in Hm of a sequence of solutions to the second-grade fluid equations in a uniform interval is proven as both the ...
Hui Zhou
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Magnetohydrodynamic approximation of the complete equations for an electromagnetic fluid

open access: yesTsukuba Journal of Mathematics, 1986
The authors give a singular limit theorem for the magnetohydrodynamic equations in two space dimensions, which are obtained as the limit of the complete equations for the electromagnetic fluid at the vanishing of the dielectric constant. They show convergence of the solutions of the complete equations to the solutions of the magnetohydrodynamic ...
Kawashima, Shuichi, Shizuta, Yasushi
openaire   +5 more sources

Peristaltic flow of Eyring-Powell nanofluid under the action of an electromagnetic field

open access: yesEngineering Science and Technology, an International Journal, 2019
Electro-kinetic peristaltic flow of Eyring-Powell nanofluid has been investigated in this paper. The flow is considered to take place in an asymmetric wavy micro-channel.
B. Mallick, J.C. Misra
doaj   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Applications of Adaptive-mesh Refinement in Computational Fluid Dynamics to Problems of Turbulent Flow and Heat Exchange [PDF]

open access: yes, 2009
Strujanje fluida i izmjena topline su važni procesi u klimatizacijskim uređajima, stoga je njihovo funkcioniranje vrlo vezano uz razumijevanje procesa strujanja i izmjene topline. Numerička mehanika fluida (CFD) je moderni alat koji inženjerima omogućuje
David GOSMAN   +3 more
core   +1 more source

Prospecting the protein design landscape

open access: yesFEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona   +4 more
wiley   +1 more source

On micropolar fluid flow [PDF]

open access: yes, 2011
Paper presented at the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011.New fundamental solutions for micropolar fluids have been obtained in explicit form by considering Stokes and Oseen ...
Shu, Jian Jun, Shu, Jian-Jun
core  

The self power of a clamped circular plate. An analytical estimation

open access: yesArchives of Acoustics, 2003
A low frequency approximation for the self power of a clamped crcular plate is presented in a form useful for some efficient numerical computations. The approximation is precise enough within nearly the whole low frequency range.
W. P. Rdzanek, W. J. Rdzanek
doaj  

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