Results 71 to 80 of about 1,809,603 (303)

Angular Momentum Evolution of Galaxies: the Perspective of Hydrodynamical Simulations

open access: yes, 2018
Until a decade ago, galaxy formation simulations were unable to simultaneously reproduce the observed angular momentum (AM) of galaxy disks and bulges.
Lagos, Claudia
core   +1 more source

APTES‐Mediated Ti‐Squarate MOF/n‐GaN Nanowire Photoanodes for Efficient Photoelectrochemical Water Splitting

open access: yesAdvanced Functional Materials, EarlyView.
The APTES linker establishes a permanent interfacial dipole, reducing the work function of n‐GaN from 3.55 to 3.29 eV. This strengthens the built‐in electric field, significantly accelerating hole extraction to drive the oxygen evolution reaction (OER). Ultimately, this tailored charge‐separation architecture achieves a remarkable 4.78‐fold enhancement
Jeong‐Kyun Oh   +15 more
wiley   +1 more source

The Multicomponent Fitting to the Star Formation Histories in the TNG Simulation

open access: yesThe Astrophysical Journal
The star formation history (SFH) is a key issue in the evolution of galaxies. In this work, we developed a model based on a Gaussian and gamma function mixture to fit SFHs with varying numbers of components. Our primary objective was to use this model to
Yang Wang   +5 more
doaj   +1 more source

Endosomal Escape of siRNA Polyplexes: A Molecular Dynamics Perspective on Underlying Mechanisms

open access: yesAdvanced Functional Materials, EarlyView.
Molecular dynamics simulations reveal distinct endosomal escape mechanisms of siRNA nanoparticles, ranging from electrostatic membrane attachment to hydrophobic membrane fusion. Hydrophobic residues and anionic endosomal lipids emerge as key determinants of membrane disruption, linking molecular interactions to experimental delivery performance and ...
Katharina M. Steinegger   +5 more
wiley   +1 more source

The Shape-velocity Alignment of Satellites Forged by Tidal Locking and Dynamical Friction

open access: yesThe Astrophysical Journal
Utilizing the TNG50 simulation, we study two types of alignments for satellites/subhalos: (1) the alignment of their major axes with the galactocentric radial directions (radial alignment), and (2) with the motion directions (orbital alignment).
Hao Yang   +10 more
doaj   +1 more source

Robust Field-level Likelihood-free Inference with Galaxies

open access: yesThe Astrophysical Journal, 2023
We train graph neural networks to perform field-level likelihood-free inference using galaxy catalogs from state-of-the-art hydrodynamic simulations of the CAMELS project.
Natalí S. M. de Santi   +14 more
doaj   +1 more source

Simulating self-gravitating hydrodynamic flows [PDF]

open access: yesComputer Physics Communications, 1995
An efficient algorithm for solving Poisson's equation in two and three spatial dimensions is discussed. The algorithm, which is described in detail, is based on the integral form of Poisson's equation and utilizes spherical coordinates and an expansion into spherical harmonics.
Müller, Ewald, Steinmetz, Matthias
openaire   +2 more sources

Dark-matter-deficient galaxies in hydrodynamical simulations [PDF]

open access: yes, 2019
Low-mass galaxies are expected to be dark-matter-dominated even within their central regions. Recently, two observations reported two dwarf galaxies in a group environment with very little dark matter in their central regions.
Liao, Shihong   +6 more
core   +1 more source

Atom‐Efficient Cerium‐Based Molecular Cages as Biocompatible Reactive Oxygen Scavengers

open access: yesAdvanced Healthcare Materials, EarlyView.
Discrete mixed‐valent cerium molecular cages organize accessible redox centers within confined coordination environments and scavenge superoxide, hydrogen peroxide, and hydroxyl radicals. Encapsulation of the lead cage in an ROS‐responsive DTP nanoplatform enables lesion‐associated delivery, attenuates macrophage oxidative stress and inflammation, and ...
Chao Li   +9 more
wiley   +1 more source

Assessing subhalo finders in cosmological hydrodynamical simulations [PDF]

open access: yes
Cosmological simulations are essential for inferring cosmological and galaxy population properties based on forward-modelling, but this typically requires finding the population of (sub)haloes and galaxies that they contain.
Han, Jiaxin   +7 more
core   +3 more sources

Home - About - Disclaimer - Privacy