Results 41 to 50 of about 121,753 (310)

Direct Numerical Simulations of Electrophoresis of Charged Colloids [PDF]

open access: yesPhysical Review Letters, 2006
4pages, 3figures, to appear in Phys.
Kim, K, Nakayama, Y, Yamamoto, R
openaire   +4 more sources

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Direct numerical simulation of heat transfer from the stagnation region of a heated cylinder affected by an impinging wake [PDF]

open access: yes, 2011
Copyright © 2011 Cambridge University Press.The effect of an incoming wake on the flow around and heat transfer from the stagnation region of a circular cylinder was studied using direct numerical simulations (DNSs).
Rodi, W   +3 more
core   +1 more source

OpenACC Acceleration of Parallel Direct Numerical Simulation of Turbulent Flows [PDF]

open access: yesJournal of Applied and Computational Mechanics
This work presents a state-of-the-art computational approach for performing large-scale simulations of turbulence on heterogeneous compute nodes.
Ahmed Abdellatif   +3 more
doaj   +1 more source

Laminar–Turbulent Intermittency in Annular Couette–Poiseuille Flow: Whether a Puff Splits or Not

open access: yesEntropy, 2020
Direct numerical simulations were carried out with an emphasis on the intermittency and localized turbulence structure occurring within the subcritical transitional regime of a concentric annular Couette–Poiseuille flow.
Hirotaka Morimatsu, Takahiro Tsukahara
doaj   +1 more source

Direct Numerical Simulations of Flows With Phase Change [PDF]

open access: yesHeat Transfer, Volume 2, 2002
During the last decade, direct numerical simulations of multiphase flow have emerged as a major research tool. It is now possible, for example, to simulate the motion of several hundred bubbles and particles in simple flows and to obtain meaningful average quantities that can be compared with experimental results. These systems are, however, still very
G. Tryggvason, A. Esmaeeli, N. Al-Rawahi
openaire   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Turbulent Channel Flow: Direct Numerical Simulation-Data-Driven Modeling

open access: yesFluids
Data obtained using direct numerical simulations (DNS) of pressure-driven turbulent channel flow are studied in the range 180 ≤Reτ≤ 10,000. Reynolds number effects on the mean velocity profile (MVP) and second order statistics are analyzed with a view of
Antonios Liakopoulos, Apostolos Palasis
doaj   +1 more source

Direct numerical simulation of supercritical annular electroconvection [PDF]

open access: yesPhysical Review E, 2007
We use direct numerical simulation to study electrically driven convection in an annular thin film. The simulation models a laboratory experiment that consists of a weakly conducting, submicron thick liquid crystal film suspended between two concentric electrodes. The film is driven to convect by imposing a sufficiently large voltage across it.
Tsai, Peichun Amy   +3 more
openaire   +2 more sources

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

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