Results 61 to 70 of about 2,315,945 (300)

Probing 3D Magnetic Fields Using Thermal Dust Polarization and Grain Alignment Theory

The Astrophysical Journal
Magnetic fields are ubiquitous in the Universe and are thought to play an important role in various astrophysical processes. Polarization of thermal emission from dust grains aligned with the magnetic field is widely used to measure the 2D magnetic field
Thiem Hoang, Bao Truong
doaj   +1 more source

The nature of interstellar dust as revealed by light scattering

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
Interstellar dust was first identified through the extinction that it causes of optical starlight. Initially, observational and theoretical studies of extinction were made to identify simple ways of removing the effect of extinction.
D. A. Williams
doaj   +1 more source

WRF-Chem model simulations of a dust outbreak over the central Mediterranean and comparison with multi-sensor desert dust observations [PDF]

Atmospheric Chemistry and Physics, 2017
In this study, the Weather Research and Forecasting model with online coupled chemistry (WRF-Chem) is applied to simulate an intense Saharan dust outbreak event that took place over the Mediterranean in May 2014.
U. Rizza, F. Barnaba, M. M. Miglietta, C. Mangia, L. Di Liberto, D. Dionisi, F. Costabile, F. Grasso, G. P. Gobbi   +8 more
doaj   +1 more source

Dust physics in the nucleus of NGC 4151 [PDF]

Astronomy & Astrophysics, 2013
The unified model of active galactic nuclei (AGNs) presumes the existence of a so-called dusty torus around the outer edge of the broad-line region. Despite the solid observational evidence for the existence of dust around AGNs and our growing information on the characteristic scales of these obscuring tori, the origin of this dust and its morphology ...
K. Schnülle, J.-U. Pott, H.-W. Rix, R. Decarli, B. M. Peterson, W. Vacca   +5 more
openaire   +1 more source

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

Advanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic, Oladele A. Ogunseitan, Julie M. Schoenung   +2 more
wiley   +1 more source

Sheath modification in the presence of dust particles

, 2000
Copyright 2000 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Arnas, Cécile, Mikikian, Maxime, G. Bachet, F. Doveil, M. Mikikian, Doveil, Fabrice, C. Arnas, Bachet, Gérard   +7 more
core   +1 more source

The AFWA dust emission scheme for the GOCART aerosol model in WRF-Chem v3.8.1 [PDF]

Geoscientific Model Development, 2019
Airborne particles of mineral dust play a key role in Earth's climate system and affect human activities around the globe. The numerical weather modeling community has undertaken considerable efforts to accurately forecast these dust emissions. Here, for
S. L. LeGrand, C. Polashenski, C. Polashenski, T. W. Letcher, G. A. Creighton, S. E. Peckham, J. D. Cetola   +6 more
doaj   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

Mechanical Properties of Dust, Pebbles, and Planetesimals Based on Johnson–Kendall–Roberts, Griffith, and Weibull Theories

The Astrophysical Journal
Mechanical properties of small bodies such as dust, pebbles, and planetesimals are key to better understanding the formation of planetary systems against their collisional destruction.
Hiroshi Kimura, Takaya Okamoto, Takayuki Hirai, Fumi Yoshida, Peng K. Hong, Koji Wada, Tomoko Arai, Eiichiro Kokubo, Yuki Yoshida, Toshihiko Kadono, Sota Arakawa, Hiroki Senshu, Masanori Kobayashi, Ko Ishibashi, Manabu Yamada, Hiroshi Akitaya, Osamu Okudaira, Takafumi Matsui   +17 more
doaj   +1 more source

The fate of saharan dust across the atlantic and implications for a central american dust barrier [PDF]

Atmospheric Chemistry and Physics, 2011
Saharan dust was observed over the Caribbean basin during the summer 2007 NASA Tropical Composition, Cloud, and Climate Coupling (TC⁴) field experiment.
E. Nowottnick, P. Colarco, A. da Silva, D. Hlavka, M. McGill   +4 more
doaj   +1 more source