Results 51 to 60 of about 21,181 (318)

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

FEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Influences of Flow Attack Angles and Flow Directions on Heat Transfer Rate, Pressure Loss, and Thermal Performance in Heat Exchanger Tube with V-Wavy Surface

Modelling and Simulation in Engineering, 2018
Numerical investigations on flow and heat transfer characteristics in the heat exchanger tube with the V-wavy surface are presented. The finite volume method with the SIMPLE algorithm is selected to solve the present problem.
Amnart Boonloi, Withada Jedsadaratanachai   +1 more
doaj   +1 more source

Improved Thermal Performance of a Serpentine Cooling Channel by Topology Optimization Infilled with Triply Periodic Minimal Surfaces

Energies, 2022
The present study utilizes a density-based topology optimization method to design a serpentine channel under turbulent flow, solving a high pressure loss issue and enhancing heat transfer capability. In the topology optimization, the k–ε turbulence model
Kirttayoth Yeranee, Yu Rao, Li Yang, Hao Li   +3 more
doaj   +1 more source

Experimental heat/mass transfer studies of turbulent wall-bounded jets associated with mechanicallly ventilated enclosures [PDF]

, 1986
The development and use of a'n experimental test rig is reported which is capable of modelling two- and three-dimensional wall-bounded air jets. This test rig was primarily produced in order to facilitate the experimental verification of computer ...
Montazerin, N.
core  

Study of a laminar falling film flowing over a wavy wall column: Part I. Numerical investigation of the flow pattern and the coupled heat and mass transfer [PDF]

, 2001
Flow pattern and heat and mass transfer characteristics for a film flowing over a vertical wavy column are numerically investigated in a laminar flow regime.
Prevost, Michel, Negny, Stéphane, S Negny, M Prevost, Meyer, Michel, M Meyer   +5 more
core   +1 more source

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

FEBS 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

Implementation of algebraic turbulent heat flux into Reynolds stress transport model and simulation of crossing tube bundles

Nuclear Engineering and Technology
Lead bismuth eutectic (LBE) is an excellent coolant for fast reactors, owing to its high boiling point and high thermal conductivity. Turbulent heat transfer is a complex phenomenon, and the numerical heat transfer of LBE is constrained by its extremely ...
Han Liu, Hao Sun, Binghuo Yan, Jun Chen, Zhikang Lin   +4 more
doaj   +1 more source

Enhancement and Suppression of Heat Transfer by MHD Turbulence [PDF]

The Astrophysical Journal, 2006
We study of the effect of turbulence on heat transfer within magnetized plasmas for energy injection velocities both larger and smaller that the Alfven speed. We find that in the latter regime the heat transfer is partially suppressed, while in the former regime the effects of turbulence depend on the intensity of driving. In fact, the scale l at which
openaire   +2 more sources

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

The effect of nozzle inclination on heat transfer in jet impingement systems [PDF]

, 1981
Jet impingement heating and cooling techniques are used extensively in industrial applications. in some of these installations, the axis of the jet can be inclined relative to the impingement surface.
Oladiran, M. T.
core