Search Results - "Boulon, J."

Investigation of nucleation events vertical extent: a long term study at two different altitude sites by Boulon, J., Sellegri, K., Hervo, M., Picard, D., Pichon, J.-M., Fréville, P., Laj, P.

“…In this work we present an analysis of the occurrence of nucleation events during more than three years of measurements at two different rural altitude sites,…”
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Observations of fluorescent and biological aerosol at a high-altitude site in central France by Gabey, A. M, Vaitilingom, M, Freney, E, Boulon, J, Sellegri, K, Gallagher, M. W, Crawford, I. P, Robinson, N. H, Stanley, W. R, Kaye, P. H

“…Total bacteria, fungal spore and yeast counts were compared with ultraviolet-light-induced fluorescence (UV-LIF) measurements of ambient aerosol at the summit…”
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New particle formation and ultrafine charged aerosol climatology at a high altitude site in the Alps (Jungfraujoch, 3580 m a.s.l., Switzerland) by Boulon, J., Sellegri, K., Venzac, H., Picard, D., Weingartner, E., Wehrle, G., Collaud Coen, M., Bütikofer, R., Flückiger, E., Baltensperger, U., Laj, P.

“…We investigate the formation and growth of charged aerosols clusters at Jungfraujoch, in the Swiss Alps (3580 m a.s.l.), the highest altitude site of the…”
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Seasonal variations in aerosol particle composition at the puy-de-Dôme research station in France by Freney, E. J., Sellegri, K., Canonaco, F., Boulon, J., Hervo, M., Weigel, R., Pichon, J. M., Colomb, A., Prévôt, A. S. H., Laj, P.

“…Detailed investigations of the chemical and microphysical properties of atmospheric aerosol particles were performed at the puy-de-Dôme (pdD) research station…”
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Physical and optical properties of 2010 Eyjafjallajökull volcanic eruption aerosol: ground-based, Lidar and airborne measurements in France by Hervo, M., Quennehen, B., Kristiansen, N. I., Boulon, J., Stohl, A., Fréville, P., Pichon, J.-M., Picard, D., Labazuy, P., Gouhier, M., Roger, J.-C., Colomb, A., Schwarzenboeck, A., Sellegri, K.

“…During the Eyjafjallajökull eruption (14 April to 24 May 2010), the volcanic aerosol cloud was observed across Europe by several airborne in situ and…”
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Seasonal variations of aerosol size distributions based on long-term measurements at the high altitude Himalayan site of Nepal Climate Observatory-Pyramid (5079 m), Nepal by Sellegri, K, Laj, P, Venzac, H, Boulon, J, Picard, D, Villani, P, Bonasoni, P, Marinoni, A, Cristofanelli, P, Vuillermoz, E

“…The present paper investigates the diurnal and seasonal variability of the aerosol total number concentration, number and volume size distribution between 10…”
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Long-term observations of cluster ion concentration, sources and sinks in clear sky conditions at the high-altitude site of the Puy de Dôme, France by Rose, C., Boulon, J., Hervo, M., Holmgren, H., Asmi, E., Ramonet, M., Laj, P., Sellegri, K.

“…Cluster particles (0.8–1.9 nm) are key entities involved in nucleation and new particle formation processes in the atmosphere. Cluster ions were characterized…”
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Intercomparison of air ion spectrometers: an evaluation of results in varying conditions by Gagné, S., Lehtipalo, K., Manninen, H. E., Nieminen, T., Schobesberger, S., Franchin, A., Yli-Juuti, T., Boulon, J., Sonntag, A., Mirme, S., Mirme, A., Hõrrak, U., Petäjä, T., Asmi, E., Kulmala, M.

“…We evaluated 11 air ion spectrometers from Airel Ltd. after they had spent one year in field measurements as a part of the EUCAARI project: 5 Air Ion…”
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The permeability of an intact granite by SELVADURAI, A. P. S, BOULON, M. J, NGUYEN, T. S

“…The permeability of intact Barre granite is determined by conducting transient hydraulic pulse tests that induce radial flow in saturated granite cylinders…”
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Sub-3 nm Particles Detection in a Large Photoreactor Background: Possible Implications for New Particles Formation Studies in a Smog Chamber by Boulon, J., Sellegri, K., Katrib, Y., Wang, J., Miet, K., Langmann, B., Laj, P., Doussin, J.-F.

“…New particles formation experiments have been conducted in the experimental multiphasic atmospheric simulation chamber (CESAM) smog chamber. The nucleation…”
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Experimental evidence of biomass burning as a source of atmospheric 137Cs, puy de Dôme (1465 m a.s.l.), France by Bourcier, L., Sellegri, K., Masson, O., Zangrando, R., Barbante, C., Gambaro, A., Pichon, J.-M., Boulon, J., Laj, P.

“…The presence of cesium-137 ( 137Cs) in the environment is mainly due to past nuclear tests and accidental reactor releases. Due to the half-life of 137Cs…”
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On the mechanics of contact between a flexible transducer diaphragm located at a rigid boundary and an elastic material by Selvadurai, A. P. S., Labanieh, S., Boulon, M. J.

“…In this paper we examine the mechanics of contact between a flexible elastic diaphragm and an isotropic elastic halfspace region where contact is established…”
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EUCAARI ion spectrometer measurements at 12 European sites – analysis of new particle formation events by Manninen, H. E., Nieminen, T., Asmi, E., Gagné, S., Häkkinen, S., Lehtipalo, K., Aalto, P., Vana, M., Mirme, A., Mirme, S., Hõrrak, U., Plass-Dülmer, C., Stange, G., Kiss, G., Hoffer, A., Törő, N., Moerman, M., Henzing, B., de Leeuw, G., Brinkenberg, M., Kouvarakis, G. N., Bougiatioti, A., Mihalopoulos, N., O'Dowd, C., Ceburnis, D., Arneth, A., Svenningsson, B., Swietlicki, E., Tarozzi, L., Decesari, S., Facchini, M. C., Birmili, W., Sonntag, A., Wiedensohler, A., Boulon, J., Sellegri, K., Laj, P., Gysel, M., Bukowiecki, N., Weingartner, E., Wehrle, G., Laaksonen, A., Hamed, A., Joutsensaari, J., Petäjä, T., Kerminen, V.-M., Kulmala, M.

“…We present comprehensive results on continuous atmospheric cluster and particle measurements in the size range ~1–42 nm within the European Integrated project…”
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Primary versus secondary contributions to particle number concentrations in the European boundary layer by Reddington, C. L., Carslaw, K. S., Spracklen, D. V., Frontoso, M. G., Collins, L., Merikanto, J., Minikin, A., Hamburger, T., Coe, H., Kulmala, M., Aalto, P., Flentje, H., Plass-Dülmer, C., Birmili, W., Wiedensohler, A., Wehner, B., Tuch, T., Sonntag, A., O'Dowd, C. D., Jennings, S. G., Dupuy, R., Baltensperger, U., Weingartner, E., Hansson, H.-C., Tunved, P., Laj, P., Sellegri, K., Boulon, J., Putaud, J.-P., Gruening, C., Swietlicki, E., Roldin, P., Henzing, J. S., Moerman, M., Mihalopoulos, N., Kouvarakis, G., Ždímal, V., Zíková, N., Marinoni, A., Bonasoni, P., Duchi, R.

“…It is important to understand the relative contribution of primary and secondary particles to regional and global aerosol so that models can attribute aerosol…”
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Experimental evidence of biomass burning as a source of atmospheric 137Cs, puy de DAme (1465aam a.s.l.), France by Bourcier, L, Sellegri, K, Masson, O, Zangrando, R, Barbante, C, Gambaro, A, Pichon, J-M, Boulon, J, Laj, P

“…The presence of cesium-137 (137Cs) in the environment is mainly due to past nuclear tests and accidental reactor releases. Due to the half-life of 137Cs…”
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Foot Ulcer Risk Is Lower in South-Asian and African-Caribbean Compared With European Diabetic Patients in the U.K.: The North-West Diabetes Foot Care Study by Abbott, Caroline A, Garrow, Adam P, Carrington, Anne L, Morris, Julie, Van Ross, Ernest R, Boulton, Andrew J

“…OBJECTIVE:--To determine 1) foot ulcer rates for European, South-Asian, and African-Caribbean diabetic patients in the U.K and 2) the contribution of…”
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Experimental study of nanoparticle formation dynamics in HMDSO-Ar asymmetric capacitively-coupled radiofrequency plasma with application to deposition of nanocomposite layers by Garofano, V., Stafford, L., Gorka, J., Gaboriau, F., Despax, B., Boulon, J., Joblin, C., Demyk, K., Makasheva, K.

“…Rational engineering of nanocomposite thin layers, deposited in reactive plasmas, requires knowledge on the plasma behaviour in order to design the structural…”
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Abundance and Growth Patterns of Chelonia mydas in Culebra, Puerto Rico by Collazo, Jaime A., Boulon, Ralf, Tallevast, Teresa L.

“…Baseline information on abundance and growth patterns of green turtles was collected at Culebra, Puerto Rico from 1987 to 1989. A total of 167 individuals was…”
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Evenly Dispersed Social Groups and Intergroup Competition for Juveniles in a Coral-Reef Fish by Shapiro, Douglas Y., Boulon, Ralf H.

“…A model based on current knowledge of recruitment of settling juveniles of coral-reef fishes suggests that adult social groups far removed from their nearest…”
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