Results 41 to 50 of about 3,986,628 (294)

Pressure Field Over Europe and North Atlantic Favourable for The Occurrence of Clear and Cloudy Days in Poland

open access: yesMiscellanea Geographica: Regional Studies on Development, 2006
In this paper, results of research concerning circulation conditions favouring the occurrence of clear and cloudy days in Poland are presented. An analysis of the mean pressure field over North Atlantic and Europe on such days was performed, differences ...
Żmudzka Elwira
doaj   +1 more source

Effect of different inlet pressures on the temperature field, velocity field and pressure field of a vortex tube

open access: yesJournal of Physics: Conference Series, 2021
Abstract In view of the wide application of vortex tube (VOTU) in the market, and in order to enhance the capability of VOTU in the higher inlet pressure, three-dimensional numerical simulations were performed with existing experimental data and models to analyse the flow fields of VOTUs at different pressures.
Q J Xu, J Xie
openaire   +1 more source

Hybrid particle-field molecular dynamics under constant pressure [PDF]

open access: yesThe Journal of Chemical Physics, 2020
Hybrid particle-field methods are computationally efficient approaches for modeling soft matter systems. So far, applications of these methodologies have been limited to constant volume conditions. Here, we reformulate particle-field interactions to represent systems coupled to constant external pressure.
Sigbjørn Løland Bore   +6 more
openaire   +6 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Casimir light: field pressure.

open access: yesProceedings of the National Academy of Sciences, 1994
The electromagnetic field is assigned a self-consistent role in which abrupt slowing of the collapse produces radiation and the pressure of the radiation produces abrupt slowing. A simple expression is introduced for the photon spectrum. Conditions for light emission are proposed that imply a high degree of spatial localization.
openaire   +3 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Enhanced Ising superconductivity in a unicompositional bulk 4Hb-TaS2 superlattice via pressure

open access: yesnpj Quantum Materials
Ising superconductors, known for their exceptionally high in-plane upper critical magnetic field ( $${{{\rm{\mu }}}_{0}H}_{{\rm{c}}2}^{\parallel }$$ μ 0 H c 2 ∥ ) beyond the Pauli limit, have so far been explored mainly in two-dimensional limit systems ...
Limin Yan   +15 more
doaj   +1 more source

The non-adiabatic pressure in general scalar field systems

open access: yes, 2009
We discuss the non-adiabatic or entropy perturbation, which controls the evolution of the curvature perturbation in the uniform density gauge, for a scalar field system minimally coupled to gravity with non-canonical action.
Adam J. Christopherson   +27 more
core   +1 more source

PIC Simulations of Continuously Driven Mirror and Ion Cyclotron Instabilities in High Beta Astrophysical and Heliospheric Plasmas [PDF]

open access: yes, 2015
We use particle-in-cell (PIC) simulations to study the nonlinear evolution of ion velocity space instabilities in an idealized problem in which a background velocity shear continuously amplifies the magnetic field.
Quataert, Eliot   +2 more
core   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

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