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152 results on '"Vignoles, M."'

13. Influence of defects and substitutions on polarization phenomena of bioelectrets

Author

Bennis, A., Miskane, F., Hitmi, N., Vignoles, M., Heughebaert, M., Lamure, A., and Lacabanne, C.

Subjects
Dielectrics -- Research, Hydroxylapatite -- Research, Business, Engineering and manufacturing industries, Science and technology
Abstract

The aim of this work is to characterize non-stoichiometric hydroxyapatites and carbonated hydroxyapatites by the thermally stimulated current technique. Since dielectric energy losses are cooperative, the compensation temperature has been chosen as fingerprint of the local order. Relaxation map analysis shows the existence of either monophasic or biphasic structures and analysis of polarization phenomena gives information on localization and interaction of defects with structural ions of the apatites.

Published
1992

21. Contribution of car, truck, bus and subway wash station discharges to stormwater pollution (Toulouse, France)

Author

Breton, A., Claire VIALLE, Montrejaud-Vignoles, M., Cecutti, C., Vignoles, C., Sablayrolles, C., Ecole nationale supérieure des ingénieurs en arts chimiques et technologiques, Chimie Agro-Industrielle (CAI), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole nationale supérieure des ingénieurs en arts chimiques et technologiques-Institut National de la Recherche Agronomique (INRA), VEOLIA France, Institut National Polytechnique de Toulouse - INPT (FRANCE), Institut National de la Recherche Agronomique - INRA (FRANCE), Veolia Environnement (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), and ProdInra, Migration

Subjects
Ecologie, Environnement, Separated sewage system, [SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering, education, stormwater, [SDV.IDA] Life Sciences [q-bio]/Food engineering, Concentrations, Water quality, motor vehicle, Autre, Organic compounds, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Run-off waters, pollution, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering
Abstract

15th International Symposium on Environmental Pollution and its Impact on Life in the Mediterranean Region, OCT 07-11, 2009, Bari, Italy; International audience; The European Water Framework Directive requires the monitoring of priority pollutants entering surface waters. This includes notably the stormwater network. In this study, the contribution of discharges from wash stations to pollution of the stormwater network was investigated. Six wash stations discharging wastewater into the stormwater network were selected: (i) one trucks wash station, (ii) two self-service stations for cars and motorcycles, (iii) two bus wash stations, (iv) one subway wash station. Classical parameters (conductivity, pH, turbidity, chemical oxygen demand, total nitrogen, total phosphorus, suspended solid) and organic micropollutants (Polycyclic Aromatic Hydrocarbons (PAHs), Total Hydrocarbons (TH) and Methylterbutylether (MTBE)) were checked and measured. Concentrations were compared with limit values from Greater Toulouse decontamination service regulations for the discharge licenses of carwashes, and under the French decree for discharges into the natural environment and with the proposed directive from the European Parliament and the Council, dealing with environmental quality standards. The result showed a decrease of pollution downstream of the pre-treatments for subway wash stations but not for bus wash stations. According to the directives, the pre-treatment processes are not sufficient to justify a discharge into the stormwater network.

Published
2010

23. Fluorination of Phosphoapatites

Author

MONTEL, G., primary, BONEL, G., additional, HEUGHEBAERT, J. C., additional, VIGNOLES, M., additional, HAMAD, M., additional, and BACQUET, G., additional

Published
1981
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26. Catalyse biotique et abiotique de la réduction des nitrates en milieu alcalin dans le contexte du stockage profond des déchets radioactifs

Author

Bertron, A., primary, Erable, B., additional, Alquier, M., additional, Jacquemet, N., additional, Kassim, C., additional, Sablayrolles, C., additional, Albasi, C., additional, Basseguy, R., additional, Strehaiano, P., additional, Vignoles, M., additional, Albrecht, A., additional, and Escadeillas, G., additional

Published
2013
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29. Incidence of HIV Type 1 Infection, Antiretroviral Drug Resistance, and Molecular Characterization in Newly Diagnosed Individuals in Argentina: A Global Fund Project

Author

Pando, M.A., primary, Gómez-Carrillo, M., additional, Vignoles, M., additional, Rubio, A.E., additional, dos Ramos Farias, M.S., additional, Vila, M., additional, Rossi, D., additional, Ralón, G., additional, Marone, R., additional, Reynaga, E., additional, Sosa, J., additional, Torres, O., additional, Maestri, M., additional, Ávila, M.M., additional, and Salomón, H., additional

Published
2011
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35. 2003 Spring meeting of the WPSA French Branch

Author

Fillon, V., primary, Vignoles, M., additional, Garrigues, A., additional, Pitel, F., additional, Morisson, M., additional, Crooijmans, R.P.M.A., additional, Groenen, M.A.M., additional, Gellin, J., additional, and Vignal, A., additional

Published
2003
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43. GENETICS, SELECTION AND REARING SYSTEMS.

Author

Beaumont, C., Protais, J., Pitel, F., Plisson-Petit, F., Colin, P., Protais, M., Le Roy, P., Malo, D., Elsen, J.M., Salvat, G., Vignal, A., Chapuis, H., Le Bihan-Duval, E., Leterrier, C., Retailleau, B., Fillon, V., Vignoles, M., and Garrigues, A.

Subjects
POULTRY feeding, SALMONELLA infections in poultry
Abstract

Focuses on genetics, selection and rearing systems of poultry. Effects of two candidate genes on a Salmonella carrier-state chicken; Estimation of genetic correlation between growth traits and leg disorders in muscovy ducks; Production of a consensus molecular linkage map of chicken genome.

Published
2001
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44. Carbonate ions in apatites: infrared investigations in the upsilon 4 CO3 domain.

Author

el Feki, H, Rey, C, and Vignoles, M

Abstract

Fourier transform infrared (IR) spectroscopic investigations of precipitated carbonate apatites in the upsilon 4 CO3 domain reveal the existence of five bands at 757, 740, 718, 692, 670 cm-1 which can be assigned to several distinct environments of the carbonate ion in the apatite structure. In order to identify these environments precisely, fluoridated and pure type A carbonate apatites (i.e., with carbonate ions in monovalent anionic sites) were examined. The bands at 670 and 757 cm-1 were attributed to type A carbonate and their relative intensity was found to increase when the carbonate content of the apatite diminished or when samples were heated at 400 degrees C. Fluoridated apatites show only two bands, close to 718 and 692 cm-1, corresponding to type B carbonate ions (carbonate in trivalent anionic sites). The band at 740 cm-1 was revealed by heating the samples to 400 degrees C. This is due to OH ions' hydrogen bonded to fluoride and to carbonate ions in an undetermined apatite site. Despite the low intensity of IR bands, investigations in the upsilon 4 CO3 domain appear complementary to those in other carbonate vibrational domains and could be useful for a more precise identification of bone mineral. [ABSTRACT FROM AUTHOR]

Published
1991

45. Carbonate ions in apatites: Infrared investigations in the v CO domain.

Author

Feki, H., Rey, Christian, and Vignoles, M.

Abstract

Fourier transform infrared (IR) spectroscopic investigations of precipitated carbonate apatites in the v CO domain reveal the existence of five bands at 757, 740, 718, 692, 670 cm which can be assigned to several distinct environments of the carbonate ion in the apatite structure. In order to identify these environments precisely, fluoridated and pure type A carbonate apatites (i.e., with carbonate ions in monovalent anionic sites) were examined. The bands at 670 and 757 cm were attributed to type A carbonate and their relative intensity was found to increase when the carbonate content of the apatite diminished or when samples were heated at 400°C. Fluoridated apatites show only two bands, close to 718 and 693 cm, corresponding to type B carbonate ions (carbonate in trivalent anionic sites). The band at 740 cm was revealed by heating the samples to 400°C. This is due to OH ions' hydrogen bonded to fluoride and to carbonate ions in an undertermined apatite site. Despite the low intensity of IR bands, investigations in the v CO domain appear complementary to those in other carbonate vibrational domains and could be useful for a more precise identification of bone mineral. [ABSTRACT FROM AUTHOR]

Published
1991
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46. 2003 Spring meeting of the WPSA French Branch.

Author

Fillion, V., Vignoles, M., Garrigues, A., Pitel, F., Morisson, M., Grooijmans, R.P.M.A., Groenen, M.A.M., Gellin, J., and Vignal, A.

Subjects
*CHICKENS, *GENOMES, *ANIMAL genome mapping, *MOLECULAR genetics, *ANIMAL genetics, *CHROMOSOMES
Abstract

Studies the molecular genetic linkage map of the chicken genome. Assignment of linkage groups to identified microchromosome pairs with bacterial artificial chromosome clones; Correlations between macrochromosomes in chicken, turkey, quail and duck.

Published
2003

47. ESR of CO

Author

Bacquet, G., Truong, Vo, Vignoles, M., Trombe, J., and Bonel, G.

Abstract

Summary: Using both low microwave power and weak magnetic field modulation, we have shown that the asymmetric signal arising in X-irradiated tooth enamel as well as in A-type carbonated apatite exposed to X-rays or to excited oxygen has an orthorhombic character and must be attributed to CO 2− . Effectively, the mean values found for the three g-tensor components are comparable to those quoted for this defect in single-crystal specimens of calcite and sodium formate.

Published
1981
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48. Carbonate ions in apatites: Infrared investigations in thev4 CO3 domain

Author

El Feki, H., Rey, Christian, and Vignoles, M.

Abstract

Summary: Fourier transform infrared (IR) spectroscopic investigations of precipitated carbonate apatites in thev 4 CO3 domain reveal the existence of five bands at 757, 740, 718, 692, 670 cm−1 which can be assigned to several distinct environments of the carbonate ion in the apatite structure. In order to identify these environments precisely, fluoridated and pure type A carbonate apatites (i.e., with carbonate ions in monovalent anionic sites) were examined. The bands at 670 and 757 cm−1 were attributed to type A carbonate and their relative intensity was found to increase when the carbonate content of the apatite diminished or when samples were heated at 400C. Fluoridated apatites show only two bands, close to 718 and 693 cm−1, corresponding to type B carbonate ions (carbonate in trivalent anionic sites). The band at 740 cm−1 was revealed by heating the samples to 400C. This is due to OH ions' hydrogen bonded to fluoride and to carbonate ions in an undertermined apatite site. Despite the low intensity of IR bands, investigations in thev 4 CO3 domain appear complementary to those in other carbonate vibrational domains and could be useful for a more precise identification of bone mineral.

Published
1991
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49. F centre in (Ca-Sr) carbonated hydroxyapatites

Author

Bacquet, G., Sbit, M., Vignoles, M., and Bonel, G.

Abstract

Powdered samples of synthetic carbonated hydroxyapatites with variable amounts of strontium substituting for calcium, obtained by precipitation, were studied by ESR at the X-band frequencies after heating at 400°C for 24 h, X-irradiation and annealing at 150°C for 30 min. The F+ centre spectrum exhibiting orthorhombic symmetry was recorded between RT and 120 K, with ≃2. When the amount of carbonate inside the samples increases, the spectral intensity has the same behaviour than that of the quantity of O2- vacancies calculated from results of chemical analysis. Our results are a confirmation of the existence of two different mechanisms of charge compensation when CO32- substitutes for PO43-, and they also show that Sr ions are not located in cation sites adjacent to carbonate ions.

Published
1983
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50. Health risk assessment case study of trace metals in collected rainwater for domestic uses

Author

Busset, G., Claire VIALLE, Montréjaud-Vignoles, M., Huau, M., Jacob, S., Sablayrolles, C., Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut National de la Recherche Agronomique - INRA (FRANCE), Veolia Environnement (FRANCE), Centre d’Application et de Traitement des AgroRessources [Toulouse] (CRT CATAR), Chimie Agro-Industrielle (CAI), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole nationale supérieure des ingénieurs en arts chimiques et technologiques-Institut National de la Recherche Agronomique (INRA), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, VEOLIA EAU, Institut National Polytechnique de Toulouse - INPT (FRANCE), and ProdInra, Migration

Subjects
Ecologie, Environnement, roof run-off, Greece, [SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering, Biodiversité et Ecologie, Ingestion, risk assessment, Reuse, [SDV.IDA] Life Sciences [q-bio]/Food engineering, water quality, reuse, Heavy metals, [SDV.IDA]Life Sciences [q-bio]/Food engineering, ingestion, Monte-carlo simulation, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, heavy metals, Roof run-off, monte-carlo simulation, Risk assessment
Abstract

International audience; A health risk assessment methodology based on modelling with a Monte Carlo simulation was applied to harvested rainwater that could be used for domestic use in southern France. Firstly a pilot roof run-off collection system was installed and trace metals analysis in collected rainwater were developed. Next, a model of exposure was built based only on chronic ingestion of rainwater during domestic activities. For exposure scenarios, three type of population were investigated: infants, children, and adults. A fourth scenario was used to determine an average risk for an entire lifetime. A Monte Carlo simulation was carried out to assess uncertainty propagation. The preponderant trace metals in reused rainwater were zinc, iron, aluminium and copper, with average concentrations equal to 4.40x10(-1) mg.L(-1) 5.43x10(-2) mg.L(-1), 5.27x10(-2) mg.L(-1) and 2.06x10(-2) mg.L(-1), respectively. When maximum concentration values were used in calculations, hazard quotients did not exceed 6.4x10(-2), i.e., about 10% of the risk limit. The highest hazard quotients observed for a person during his or her entire lifespan were found for zinc (6.4x10(-2)) and lead (4.5x10(-2)). These health risk assessment results showed that no risk of non-carcinogenic effects from trace metals could be expected from the harvest and reuse of rainwater for domestic activities.

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