Results 21 to 30 of about 57,704 (234)

An investigation of heat transfer coefficient during refrigerants condensation in vertical pipe minichannels

E3S Web of Conferences, 2018
This article presents the results of experimental research of heat transfer coefficient in air cooled vertical pipe minichannels during R404A, R407C and R410A high-pressure refrigerants condensation.
Bohdal Tadeusz, Charun Henryk, Kruzel Marcin, Sikora Małgorzata   +3 more
doaj   +1 more source

Placement of shunt reactors in high-voltage network using fuzzy constraints [PDF]

E3S Web of Conferences, 2019
In recent years, controlled shunt reactors (CSR) relevant to the class of FACTS facilities have been widely used to control voltage modes and reactive power flows in the high-voltage electrical network.
Hashimov Arif, Guliyev Huseyngulu, Babayeva Aytek   +2 more
doaj   +1 more source

3D Numerical Investigation of Free Convection using Lattice Boltzmann and Finite Difference Methods

International Journal of Renewable Energy Development, 2022
Numerical study of various physical phenomena in three dimensions has become a necessity to better understand the physical process than in two dimensions.
Jaouad Benhamou, El Bachir Lahmer, Mohammed Jami, Mohammed Amine Moussaoui, Ahmed Mezrhab   +4 more
doaj   +1 more source

Modeling of transverse stimulated Raman scattering in KDP/DKDP in large-aperture plates suitable for polarization control

High Power Laser Science and Engineering, 2023
Transverse stimulated Raman scattering (TSRS) in potassium dihydrogen phosphate (KDP) and deuterated potassium dihydrogen phosphate (DKDP) plates for large-aperture, inertial confinement fusion (ICF)-class laser systems is a well-recognized limitation ...
Hu Huang, Tanya Z. Kosc, Terrance J. Kessler, Stavros G. Demos   +3 more
doaj   +1 more source

Monitoring and characterization of particle contamination in the pulse compression chamber of the OMEGA EP laser system

High Power Laser Science and Engineering, 2023
The laser-damage performance of optics is known to be negatively affected by microscale particle contamination induced by the operational environment.
B. N. Hoffman, N. Savidis, S. G. Demos
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Dephasingless two-color terahertz generation

Scientific Reports
A laser pulse composed of a fundamental and an appropriately phased second harmonic can drive a time-dependent current of photoionized electrons that generates broadband THz radiation.
Tanner T. Simpson, Jeremy J. Pigeon, Kyle G. Miller, Dillon Ramsey, Dustin H. Froula, John P. Palastro   +5 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

Methods of intelligent protection from asymmetrical conditions in electric networks [PDF]

E3S Web of Conferences, 2020
Possible cases of non-fulfilment of the requirements of the necessary sensitivity and the selectivity of the existing protection against incomplete-phase and asymmetric modes in the electrical network under conditions of uncertainty of the initial data ...
Guliyev H.B, Tomin N.V., Ibrahimov F.Sh
doaj   +1 more source