Results 31 to 40 of about 1,577,365 (340)

NUMERICAL SIMULATIONS OF BLACK HOLE ACCRETION

Odessa Astronomical Publications, 2017
A resume of fruitful interaction between analytical and numerical approach to the subjectof accretion disks around black holes is here presented. We review time dependent simulations of unviscous and moderately viscous accretion flows.
D. Molteni, V. Teresi, G. Gerardi, M. A. Valenza   +3 more
doaj   +1 more source

Optimal Taylor-Couette flow: direct numerical simulations [PDF]

, 2012
We numerically simulate turbulent Taylor-Couette flow for independently rotating inner and outer cylinders, focusing on the analogy with turbulent Rayleigh-B\'enard flow.
Chandrasekhar, Detlef Lohse, Drazin, Richard J. A. M. Stevens, Roberto Verzicco, Rodolfo Ostilla, Siegfried Grossmann, Strogatz   +7 more
core   +4 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

The Impact of a New Container Port on the Greenhouse Gas Pollution

Business Systems Research
Large vessels that call at European ports will have to pay for their CO2 emissions from transporting cargo that enters or goes from a European port since January 2024. The costs will increase with increasing global trade.
Bogataj David, Campuzano-Bolarin Francisco, Nicolás José Andrés Moreno   +2 more
doaj   +1 more source

Numerical models performance to predict drying liquid water in porous building materials: Comparison of experimental and simulated drying water content profiles

Cogent Engineering, 2017
A practical way to evaluate drying in porous building materials is through environmental conditioning drying curve where drying is influenced by external factors such as environmental conditions and by the material properties.
A.S. Guimarães, I.M. Ribeiro, V.P. de Freitas   +2 more
doaj   +1 more source

Numerical simulations of rotating sunspots [PDF]

, 2006
A numerical model of idealized, axisymmetric, rotating sunspots is presented. The model contains a compressible plasma described by the nonlinear MHD equations, with density and temperature gradients simulating the upper layer of the sun’s convection ...
Botha, Gert, Busse, F. H., Hurlburt, Neal, Rucklidge, Alistair   +3 more
core  

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Reliability-Oriented Design of a Solar-PV Deployments

Energies, 2021
Increasing restrictions on the emission of greenhouse gases by the standards and the European Union’s policy aims at increasing the share of renewable energy sources in the energy mix of the Member States. Subsequently, we observe a rapid increase in the
Paweł Kut, Katarzyna Pietrucha-Urbanik, Barbara Tchórzewska-Cieślak   +2 more
doaj   +1 more source

Resolution requirements for numerical simulations of transition [PDF]

, 1989
The resolution requirements for direct numerical simulations of transition to turbulence are investigated. A reliable resolution criterion is determined from the results of several detailed simulations of channel and boundary-layer ...
AA Wray, DR Williams, FR Hama, J Curry, J Kim, LS Kovasznay, MR Malik, N Gilbert, PS Lowery, PS Marcus, RW Metcalfe, S Biringen, S Biringen, SA Orszag, SA Orszag, TA Zang, TA Zang, TA Zang   +17 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source