Results 31 to 40 of about 4,495,396 (248)

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS 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, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

The global characteristics of the three-dimensional thermal convection inside a spherical shell [PDF]

Nonlinear Processes in Geophysics, 1997
The Rayleigh number-Nusselt number, and the Rayleigh number-thermal boundary layer thickness relationships are determined for the three-dimensional convection in a spherical shell of constant physical parameters.
J. Arkani-Hamed
doaj  

The onset of instability in unsteady boundary-layer separation [PDF]

, 1996
The process of unsteady two-dimensional boundary-layer separation at high Reynolds number is considered. Solutions of the unsteady non-interactive boundary-layer equations are known to develop a generic separation singularity in regions where the ...
K. W. Cassel, J. D. A. Walker, Smith, FT, Cassel, KW, Walker, JDA, F. T. Smith   +5 more
core   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Mesoscale variability in the summer Arctic boundary layer

, 2009
Observations from the summer Arctic Ocean Experiment 2001 (AOE-2001) are analysed with a focus on the interactions between mesoscale and boundary-layer dynamics.
Tjernström, Michael,, Mauritsen, Thorsten,   +1 more
core   +1 more source

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

FEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana, Xiaowei Bogetti, Stuti Sharma, Ivet Bahar   +3 more
wiley   +1 more source

Integral characteristics of a non-stationary thermal boundary layer at thermal load release in the initial section of a cylindrical channel

Известия высших учебных заведений: Проблемы энергетики
THE PURPOSE. To study the development of a non-stationary thermal boundary layer of a turbulent gas flow in the initial section of a cylindrical channel.METHODS. The study was carried out experimentally and by means of mathematical modeling.
K. H. Gilfanov, R. N. Gainullin, U. M. Akhmadeev, D. R. Gilyazov   +3 more
doaj   +1 more source

MHD Stagnation-Point Flow of a Carreau Fluid and Heat Transfer in the Presence of Convective Boundary Conditions. [PDF]

PLoS ONE, 2016
In the present investigation we analyze the impact of magnetic field on the stagnation-point flow of a generalized Newtonian Carreau fluid. The convective surface boundary conditions are considered to investigate the thermal boundary layer.
Masood Khan, Hashim, Ali Saleh Alshomrani   +2 more
doaj   +1 more source

A thermal plume model for the Martian convective boundary layer [PDF]

Journal of Geophysical Research: Planets, 2013
The Martian planetary boundary layer (PBL) is a crucial component of the Martian climate system. Global climate models (GCMs) and mesoscale models (MMs) lack the resolution to predict PBL mixing which is therefore parameterized. Here we propose to adapt the “thermal plume” model, recently developed for Earth climate modeling, to Martian GCMs, MMs, and ...
Colaïtis, Arnaud, Spiga, Aymeric, Hourdin, Frédéric, Rio, Catherine, Forget, François, Millour, Ehouarn   +5 more
openaire   +3 more sources

Simulation of Instantaneous Heat Transfer in Spark Ignition Internal Combustion Engines: Unsteady Thermal Boundary Layer Modelling

, 2009
Simulation of internal combustion engine heat transfer using low-dimensional thermodynamic modelling often relies on quasi-steady heat transfer correlations.
Ray Malpress, David R. Buttsworth, Abdalla Agrira, Talal Yusaf, Malpress, Ray, Agrira, Abdalla, Buttsworth, David R., Yusaf, Talal   +7 more
core   +1 more source