Search results for "liquid"

Eco-extraction and encapsulation of carotenoid and anthocyanin pigments from tropical plants

2018

This thesis deals with extraction processes using assistance technologies or green solvents and encapsulation systems of natural pigments in order to exploit and apply them in the food, cosmetic and pharmaceutical industries. In this goal, microwave-assisted extraction (MAE), ultrasonic-assisted extraction (UAE) and Ionic liquids (IL) were evaluated for the extraction of carotenoids and anthocyanins from Vietnamese plants. The results obtained show that the MAE was always a rapid and helpful system for all types of extraction tested whereas ultrasounds were particularly efficient when pigments are present on the surface of plant tissues. However, UAE was also improving results compared to c…

Caractérisation contestable de la direction de fait d'une association

2020

International audience; Note sous Cour de cassation (com.), 8 janvier 2020, n° 18-20.270 (F-P+B), A. c/ D.

Déclaration et vérification des créances. Créanciers astreints à l'obligation de déclaration. Associé admis au redressement judiciaire, dont les part…

2005

International audience; (Com. 8 mars 2005, Mme Dauverchain c/ Sté Pharmacie Lauzière-Durand, pourvoi n° 02-17.692, arrêt n° 374 F-P+B, D. 2005.839, obs. A. Lienhard)

Les associés d'une société civile, après reconnaissance de sa dette par celle-ci, ne sauraient, pour échapper aux poursuites du créancier, utiliser l…

1996

International audience

Suspension des poursuites individuelles. Conditions d'exercice des poursuites d'un créancier social contre les associés d'une société civile en liqui…

2006

International audience; (Cass. com., 24 janv. 2006, pourvoi n° 04-19.061, arrêt n° 91 F-P+B, SCI Azur Investissement Holding c/ Sté CDR Créances, Juris-Data, n° 2006-031803 ; cette Revue 2006, p. 435, obs. M.-H. Monsérié-Bon et L. Grosclaude ; D. 2006, AJ p. 445, obs. A. Lienhard ; JCP 2006, I, 139, n° 10, obs. M. Cabrillac et P. Pétel ; Petites affiches, 28 avr. 2006, p. 14, note D. Gibirila ; Rev. sociétés 2006, p. 410, obs. J.-F. Barbièri, et p. 637, obs. T. Bonneau)

Summertime and wintertime atmospheric processes of secondary aerosol in Beijing

2020

Secondary aerosol constitutes a large fraction of fine particles in urban air of China. However, its formation mechanisms and atmospheric processes remain largely uncertain despite considerable study in recent years. To elucidate the seasonal variations in fine-particle composition and secondary aerosol formation, an Aerodyne quadrupole aerosol chemical speciation monitor (Q-ACSM), combined with other online instruments, was used to characterize the sub-micrometer particulate matter (diameter < 1 µm, PM1) in Beijing during summer and winter 2015. Our results suggest that photochemical oxidation was the major pathway for sulfate formation during summer, whereas aqueou…

2016

Abstract. Cloud residues and out-of-cloud aerosol particles with diameters between 150 and 900 nm were analysed by online single particle aerosol mass spectrometry during the 6-week study Hill Cap Cloud Thuringia (HCCT)-2010 in September–October 2010. The measurement location was the mountain Schmücke (937 m a.s.l.) in central Germany. More than 160 000 bipolar mass spectra from out-of-cloud aerosol particles and more than 13 000 bipolar mass spectra from cloud residual particles were obtained and were classified using a fuzzy c-means clustering algorithm. Analysis of the uncertainty of the sorting algorithm was conducted on a subset of the data by comparing the clustering output with parti…

2016

Abstract. Gaseous formaldehyde (HCHO) is an important precursor of OH radicals and a key intermediate molecule in the oxidation of atmospheric volatile organic compounds (VOCs). Budget analyses reveal large discrepancies between modeled and observed HCHO concentrations in the atmosphere. Here, we investigate the interactions of gaseous HCHO with soil surfaces through coated-wall flow tube experiments applying atmospherically relevant HCHO concentrations of  ∼  10 to 40 ppbv. For the determination of uptake coefficients (γ), we provide a Matlab code to account for the diffusion correction under laminar flow conditions. Under dry conditions (relative humidity  =  0 %), an initial γ of (1.1 ± …

Evidence of ice crystals at cloud top of Arctic boundary-layer mixed-phase clouds derived from airborne remote sensing

2009

Abstract. The vertical distribution of ice crystals in Arctic boundary-layer mixed-phase (ABM) clouds was investigated by airborne remote-sensing and in situ measurements during the Arctic Study of Tropospheric Aerosol, Clouds and Radiation (ASTAR) campaign in March and April 2007. Information on the spectral absorption of solar radiation by ice and liquid water cloud particles is derived from airborne measurements of solar spectral radiation reflected by these clouds. It is shown by calculation of the vertical weighting function of the measurements that the observed absorption of solar radiation is dominated by the upper cloud layers (50% within 200 m from cloud top). This vertical weighti…

The scavenging of two different types of marine aerosol particles calculated using a two-dimensional detailed cloud model

2011

Our 2-D dynamic model including spectral microphysics and scavenging has been evaluated for a warm precipitating convective cloud at Day 261 (18 September 1974) of the GATE campaign. Two different chemical species ((NH 4 ) 2 SO 4 and NaCl) of aerosol particles were followed in the air, inside the drops in the cloud, and inside the drops reaching the ground. Concerning the dynamics and microphysics, as well as the scavenging and wet deposition, the model results agree quite well with available observations. The cloud rained after 19 min of cloud life time. For the considered aerosol loading of the atmosphere, rough estimates are derived for the total material processed by such a warm convect…