Zobrazeno 1 - 10
of 7 186
pro vyhledávání: '"A. de Laat"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 4511-4535 (2024)
Denitrification within the stratospheric vortex is a crucial process for Antarctic ozone hole formation, resulting in an analogous stratospheric “nitrogen hole”. Sedimentation of large nitric acid trihydrate polar stratospheric cloud particles wi
Externí odkaz:
https://doaj.org/article/cfefe684d8b341a8b518f2fc2c64c390
Let $G$ be a countable group and $\mu$ a probability measure on $G$. We build a new framework to compute asymptotic quantities associated with the $\mu$-random walk on $G$, using methods from harmonic analysis on groups and Banach space theory, most
Externí odkaz:
http://arxiv.org/abs/2410.19689
Publikováno v:
Earth System Science Data, Vol 13, Pp 2995-3012 (2021)
We present version 1.0 of a global catalog of NOx emissions from point sources, derived from TROPOspheric Monitoring Instrument (TROPOMI) measurements of tropospheric NO2 for 2018–2019. The identification of sources and quantification of emissions
Externí odkaz:
https://doaj.org/article/1a421f21be4745ada5b3671907ac59b5
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 20, Pp 1203-1217 (2020)
This study presents an analysis of TROPOMI cloud heights as a proxy for volcanic plume heights in the presence of absorbing aerosols and sulfur dioxide for the 19 February 2018 eruption plume of the Sinabung volcano on Sumatra, Indonesia. Comparison
Externí odkaz:
https://doaj.org/article/b27a274fcc3a4b9ba96fd7f9c481a86a
We prove that the $D_4$ root system (the set of vertices of the regular $24$-cell) is the unique optimal kissing configuration in $\mathbb R^4$, and is an optimal spherical code. For this, we use semidefinite programming to compute an exact optimal s
Externí odkaz:
http://arxiv.org/abs/2404.18794
We show that the spectral embeddings of all known triangle-free strongly regular graphs are optimal spherical codes (the new cases are $56$ points in $20$ dimensions, $50$ points in $21$ dimensions, and $77$ points in $21$ dimensions), as are certain
Externí odkaz:
http://arxiv.org/abs/2403.16874
Publikováno v:
Oral and Maxillofacial Surgery Cases, Vol 4, Iss 2, Pp 39-52 (2018)
Orthognathic surgery may affect or cause temporomandibular joint (TMJ) complaints. This study evaluated the need for TMJ surgery after orthognathic surgery.A retrospective cohort study was carried out on 630 consecutive patients undergoing at least a
Externí odkaz:
https://doaj.org/article/6790acc233fc4d35a4d5e2052fa78673
Autor:
A. de Laat, E. Defer, J. Delanoë, F. Dezitter, A. Gounou, A. Grandin, A. Guignard, J. F. Meirink, J.-M. Moisselin, F. Parol
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Iss 4, Pp 1359-1371 (2017)
We present an evaluation of the ability of passive broadband geostationary satellite measurements to detect high ice water content (IWC > 1 g m−3) as part of the European High Altitude Ice Crystals (HAIC) project for detection of upper-atmospheric
Externí odkaz:
https://doaj.org/article/6dcef0f249634b5f875149ba43bef4f0
Given a non-singular action $\Gamma \curvearrowright (X,\mu)$, we define the $*$-algebra $\mathbb C_{\rm fp}[\Gamma \curvearrowright X]$ of operators of finite dynamical propagation associated with this action. This assignment is completely canonical
Externí odkaz:
http://arxiv.org/abs/2308.07006
Autor:
Mesarcik, Michael, Boonstra, Albert-Jan, Iacobelli, Marco, Ranguelova, Elena, de Laat, Cees, van Nieuwpoort, Rob
Publikováno v:
A&A 680, A74 (2023)
As radio telescopes increase in sensitivity and flexibility, so do their complexity and data-rates. For this reason automated system health management approaches are becoming increasingly critical to ensure nominal telescope operations. We propose a
Externí odkaz:
http://arxiv.org/abs/2307.01054