Results 71 to 80 of about 125,571 (299)

Model independent determination of the light-cone wave functions for exclusive processes [PDF]

, 1998
We present a method to compute, by numerical simulations of lattice QCD, the light-cone wave functions which enter exclusive processes at large momentum transfer, such as electromagnetic elastic scatterings, or exclusive semi-leptonic decays as B -> pi ...
Aglietti, U., Ciuchini, M., Corbo', G., Franco, E., Martinelli, G., Silvestrini, L.   +5 more
core   +2 more sources

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Detecting Land with Reflected-light Spectroscopy to Rule Out Waterworld O2 Biosignature False Positives

The Astrophysical Journal
The search for life outside our solar system is at the forefront of modern astronomy, and telescopes such as the Habitable Worlds Observatory (HWO) are being designed to identify biosignatures.
Anna Grace Ulses, Joshua Krissansen-Totton, Tyler D. Robinson, Victoria Meadows, David C. Catling, Jonathan J. Fortney   +5 more
doaj   +1 more source

Intercomparison of radiative forcing calculations of stratospheric water vapour and contrails

Meteorologische Zeitschrift, 2009
Seven groups have participated in an intercomparison study of calculations of radiative forcing (RF) due to stratospheric water vapour (SWV) and contrails.
Gunnar Myhre, Maria Kvalevåg, Gaby Rädel, Jolene Cook, Keith P. Shine, Hannah Clark, Fernand Karcher, Krzysztof Markowicz, Aleksandra Kardas, Paulina Wolkenberg, Yves Balkanski, Michael Ponater, Piers Forster, Alexandrude Rap, Ruben Leon, Rodriguez   +15 more
doaj   +1 more source

Resonant line transfer in a fog: Using Lyman-alpha to probe tiny structures in atomic gas

, 2017
Motivated by observational and theoretical work which both suggest very small scale ($\lesssim 1\,$pc) structure in the circum-galactic medium of galaxies and in other environments, we study Lyman-$\alpha$ (Ly$\alpha$) radiative transfer in an extremely ...
Dijkstra, Mark, Gronke, Max, McCourt, Michael, Oh, S. Peng   +3 more
core   +1 more source

COMPARING THE EFFECT OF RADIATIVE TRANSFER SCHEMES ON CONVECTION SIMULATIONS [PDF]

The Astrophysical Journal, 2012
We examine the effect of different radiative transfer schemes on the properties of 3D simulations of near-surface stellar convection in the superadiabatic layer, where energy transport transitions from fully convective to fully radiative. We employ two radiative transfer schemes that fundamentally differ in the way they cover the 3D domain.
Tanner, Joel D., Basu, Sarbani, Demarque, Pierre   +2 more
openaire   +2 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Modeling Atmospheric Lines by the Exoplanet Community (MALBEC) Version 1.0: A CUISINES Radiative Transfer Intercomparison Project

The Planetary Science Journal
Radiative transfer (RT) models are critical in the interpretation of exoplanetary spectra, in simulating exoplanet climates, and when designing the specifications of future flagship observatories.
Geronimo L. Villanueva, Thomas J. Fauchez, Vincent Kofman, Eleonora Alei, Elspeth K. H. Lee, Estelle Janin, Michael D. Himes, Jérémy Leconte, Michaela Leung, Sara Faggi, Mei Ting Mak, Denis E. Sergeev, Thea Kozakis, James Manners, Nathan Mayne, Edward W. Schwieterman, Alex R. Howe, Natasha Batalha   +17 more
doaj   +1 more source

Parameterization of 3D cloud geometry and a neural-network-based fast forward operator for polarized radiative transfer [PDF]

Atmospheric Measurement Techniques
Clouds generally have a complex three-dimensional geometry. However, realistic three-dimensional radiative transfer simulations of clouds are computationally expensive, so most retrievals of cloud properties assume one-dimensional clouds, which ...
A. Weber, G. Köcher, B. Mayer
doaj   +1 more source

Lyα RADIATIVE TRANSFER IN COSMOLOGICAL SIMULATIONS USING ADAPTIVE MESH REFINEMENT [PDF]

The Astrophysical Journal, 2009
A numerical code for solving various Lyman alpha (Lya) radiative transfer (RT) problems is presented. The code is suitable for an arbitrary, three-dimensional distribution of Lya emissivity, gas temperature, density, and velocity field. Capable of handling Lya RT in an adaptively refined grid-based structure, it enables detailed investigation of the ...
Laursen, Peter, Razoumov, Alexei O., Sommer-Larsen, Jesper   +2 more
openaire   +3 more sources