Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Jacques Fontan"'
Autor:
Jacques Fontanille
Publikováno v:
Estudos Semióticos, Vol 19, Iss 2 (2023)
L’expression « sémiotique plastique », proposée par Jean-Marie Floch, à la suite de Greimas, est déjà en soi un choix critique. Elle a permis d’éviter le piège des typologies sémiotiques précédentes, fondées sur les canaux sensoriels
Externí odkaz:
https://doaj.org/article/699c4e5d85074a3eb6c07f1680c987e0
Publikováno v:
Atmospheric Research
Atmospheric Research, 2003, 66 (1-2), pp.83-105. ⟨10.1016/S0169-8095(02)00158-8⟩
Atmospheric Research, Elsevier, 2003, 66 (1-2), pp.83-105. ⟨10.1016/S0169-8095(02)00158-8⟩
Atmospheric Research, 2003, 66 (1-2), pp.83-105. ⟨10.1016/S0169-8095(02)00158-8⟩
Atmospheric Research, Elsevier, 2003, 66 (1-2), pp.83-105. ⟨10.1016/S0169-8095(02)00158-8⟩
The aim of the campaign presented here is to compare data networks' measurements of atmospheric pollutants (mainly tropospheric ozone) with airborne measurements in the atmospheric boundary layer. It is designed to determine whether ozone fields are
Autor:
Véronique Pont, Jacques Fontan
Publikováno v:
Atmospheric Environment. 35:1527-1535
This paper examines ozone data from five large French cities (Marseilles, Lyon, Paris, Strasbourg and Toulouse) in spring and summer over a three-year period to study the possible influence of local primary pollutant emissions. In these cities the le
Autor:
Jacques Fontan, Véronique Pont
Publikováno v:
Journal of Geophysical Research: Atmospheres. 105:17699-17707
High ozone concentrations are observed in late spring and summer during anticyclonic situations. Much of the ozone is the result of a photochemical production on a large scale due to the presence of precursors NOx, CO and HC, while the air mass is mo
Autor:
Jacques Fontan, Véronique Pont
Publikováno v:
Atmospheric Environment. 34:5209-5223
In France, an important air quality surveillance network is organized by region. Each region has a number of measurement sites available. In southern France for each region studied, measurement sites show highly correlated variations of daily ozone m
Publikováno v:
Atmospheric Environment. 33:1561-1574
In May 1995, the “Chimie-Creil 95” experiment was undertaken in the north of France. The field data are first used to validate the methodology for airborne measurement of ozone flux. A certain number of methodological problems due to the location
Publikováno v:
Atmospheric Environment. 28:2461-2471
Eddy-correlation measurements of small particle deposition fluxes were made during the STARS ∗ campaign in the Sahelian area of Niger, in November 1989. The measurements showed a significant evolution of deposition velocity throughout the day, stro
Autor:
Alain Marenco, Jacques Fontan
Publikováno v:
Tellus A; Vol 24, No 1 (1972)
Contemporary technical literature has given consideration to complementary sources of 210 Po (fossil, terrestrial, stratospheric, artificial). A discussion of the importance of these various sources, based on short-time measurements of 210 Po, of 210
Autor:
ALAIN MARENCO, JACQUES FONTAN
Publikováno v:
Tellus A; Vol 28, No 1 (1976)
Il existe de nombreuses mesures, réalisées en differents points du globe, des variations de concentration de divers elements radioactifs. Ces mesures ne portent généralement que sur un seul élément par station et correspondent à des prélèvem
Autor:
Alain Marenco, Jacques Fontan
Publikováno v:
Tellus A; Vol 24, No 5 (1972)
Des sources complementaires de 210 Po ont ete envisagees dans la litterature pour expliquer les ecarts entre les temps de sejour obtenus a partir des descendants a longue periode du radon. Une etude sur modeles numeriques du temps de sejour des aeros