Search results for "modeling"

Rational solutions to the mKdV equation associated to particular polynomials

2021

International audience; Rational solutions to the modified Korteweg-de Vries (mKdV) equation are given in terms of a quotient of determinants involving certain particular polynomials. This gives a very efficient method to construct solutions. We construct very easily explicit expressions of these rational solutions for the first orders n = 1 until 10.

Construire et évaluer des solutions d’adaptation locales au changement climatique avec une modélisation intégrée agro-hydrologique parcimonieuse

2022

CeLL, an agent based model for exploring the spatial influence influence of climate change on Lobesia botrana population dynamics

2016

International audience; The European Grapevine moth (Lobesia botrana) is one of the most noxious vineyard-pests in the European and Mediterranean area. Its larvae feed on grapevine flowers and berries, and usually cause considerable damage, also by facilitating saphrophytic infections to berries.The biology of L. botrana has been investigated since the 80s. A number of studies has tested its physiology and behaviour in experimental conditions (Hurtrel et Thiéry 1999), in field conditions (Stockel et al. 1994), and using mathematical modelling techniques. Whereas the modelling approaches that have been proposed in the literature are hetereogeneus they generally focus on the phenology and pop…

Influence de l'apport d'amendements organiques sur les émissions de N2O et de N2 par les sols, au cours de la dénitrification, révélée par le traçage…

2006

International audience

Évolution du bilan hydrique à l'échelle de bassins versants en contexte de changement climatique – mise place d’une méthodologie

2014

Assessment of hydric balance at the catchment scale, under climate change scenario Face to climate change, public policies must implement adaptation strategies. This implies that the effects of climate change are plainly identified on territories. However, in the current state, data and knowledge at the local level are limited or not available to decision makers. This work proposes to well characterize the local impacts of climate change and to develop synergies between researchers and territorial actors to prepare the public decision.

Conception et évaluation de systèmes de culture innovants : le cas exemplaire de la Protection Intégrée contre la flore adventice

2009

Pas de résumé

DEXi Fusariose de l’ail : Prototype d’outil d’évaluation multicritère en vue de la maitrise du risque de développement de la fusariose de l’ail (Fusa…

2022

Intraseasonal descriptors and rainfall extremes in austral summer over South Africa : Observations and Meso-scale modelling

2022

Rainfall extremes are of major and increasing importance in semi-arid countries and their variability has strong implications for water resource and climate impacts on the local societies and environment. Here, we examine intraseasonal descriptors (ISDs) and wet extremes in austral summer rainfall (November−February) over South Africa (SA). Using daily observations from 225 rain gauges and ERA5 reanalysis between 1979 and 2015, we propose a novel typology of wet extreme events based on their spatial fraction, thus differentiating large- and small-scale extremes. Long-term variability of both types of extreme rainfall events is then extensively discussed in the context of ISDs. Following the…

The human OR1G1 olfactory receptor is differentially activated by various sandalwood odorants. A joint approach combining in silico and in vitro expe…

2013

International audience; Sandalwood is a highly valuable component in perfumery. The action mode of sandalwood odorant molecules remains to be addressed. In fact, olfactory receptors involved in their perception have not yet been identified. The interaction of a human olfactory receptor, hOR1G1, with sandalwood odorants has been investigated. By means of cellular biology and functional tests experiments, we provide an additional insight to our atomic model of OR1G1 and our olfactophore approach performed on various odorants. The studied odorants cover a wide range of structures and sandalwood intensities. We experimentally show that beta-santalol is a strong agonist of hOR1G1, contrarily to …

How optical density measurements on artificially reconstituted soil ecosystems show the validity of the competitive exclusion principle

2010

aeres : C-COM; International audience