Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Dettwiller, P."'
The applicability of computational fluid dynamics (CFD) based design tools depend on the accuracy and complexity of the physical models, for example turbulence models, which remains an unsolved problem in physics, and rotor models that dictates the c
Externí odkaz:
http://arxiv.org/abs/2305.03823
A machine-learned (ML) model is developed to enhance the accuracy of turbulence transport equations of Reynolds Averaged Navier Stokes (RANS) solver and applied for periodic hill test case, which involves complex flow regimes, such as attached bounda
Externí odkaz:
http://arxiv.org/abs/2303.11447
Autor:
Dettwiller, Luc
The fundamental quadrature governing light rays in a spherically symmetrical medium is first recalled. A rigorous discussion of some qualitative properties of its solutions follows, using the Young-Kattawar diagram which leads to a geometric formulat
Externí odkaz:
http://arxiv.org/abs/2204.02605
Autor:
Dettwiller, Luc
The empirical law of Gladstone-Dale is insufficient for high-precision studies using the refractivity of a gas: this is not exactly proportional to its density, and the gas may not be properly described as perfect. An optical Mariotte temperature all
Externí odkaz:
http://arxiv.org/abs/2204.02603
Autor:
Martin Jones, Kuda Muyambi, Sandra Walsh, Pascale Dettwiller, Daniel Bressington, Richard John Gray, Kuan Liung Tan, Shaun Dennis, Audrey McCall
Publikováno v:
BMJ Open, Vol 14, Iss 5 (2024)
Introduction Negative symptoms are frequently experienced by people with schizophrenia. People with negative symptoms often have impaired social functioning and reduced quality of life. There is some evidence that cognitive–behavioural therapy resu
Externí odkaz:
https://doaj.org/article/3e3b127d10a54a8cae1626822f0c036d
Publikováno v:
Comptes Rendus. Physique, Vol 23, Iss S1, Pp 5-11 (2023)
Externí odkaz:
https://doaj.org/article/0b5c2827f8df4e089490bb0cdd5e9362
Autor:
Dettwiller, Luc
Publikováno v:
Comptes Rendus. Physique, Vol 23, Iss S1, Pp 13-62 (2023)
From Greek antiquity to the era of computer science, astronomical refraction has raised questions about the real angular position of celestial bodies as seen from Earth surface, the structure of its atmosphere, and the celestial navigation. After int
Externí odkaz:
https://doaj.org/article/0a4e082212b442279aef22f0775dc0e9
Publikováno v:
A&A 631, A55 (2019)
At Pic du Midi observatory we carry out a solar survey with images of the photosphere, prominences and corona. This survey, named CLIMSO (CLIch\'es Multiples du SOleil), is in the following spectral lines: Fe XIII corona (1.075 micron), H-alpha (656.
Externí odkaz:
http://arxiv.org/abs/1902.06980
Autor:
Koechlin, Laurent, Dettwiller, Luc
Publikováno v:
Comptes Rendus. Physique, Vol 23, Iss S1, Pp 345-364 (2023)
The very large telescopes and the various optical interferometers provide access to unparalleled angular resolutions and provide scientific data of primary importance, but at the price of instrumental constraints that require complex equipment. The c
Externí odkaz:
https://doaj.org/article/9b09d1d405a443368dd10c238355784d
Autor:
Dettwiller, Luc
Publikováno v:
Comptes Rendus. Physique, Vol 23, Iss S1, Pp 63-102 (2023)
The general theoretical properties and various approximate formulas for the angle $\chi _{S}$ of astronomical refraction at S are presented, beginning with its fundamental expression by the refraction integral and immediately leading to the Simpson f
Externí odkaz:
https://doaj.org/article/29d13a3b044d48b89f41dd7904309304