Zobrazeno 1 - 10
of 107
pro vyhledávání: '"J. J. Iversen"'
Autor:
Nuria Andres Santiuste, Cesare Molfese, Daniele Brienza, Ignacio Arruego, Bortolino Saggin, Giuseppe Mongelluzzo, Fabio Cozzolino, A. Martin-Ortega, Alan Cosimo Ruggeri, Ciprian Ionut Popa, Simone Silvestro, Jonathan Merrison, Jose Ramon De Mingo, Carmen Porto, J. J. Iversen, Gabriele Franzese, Fausto Cortecchia, Diego Scaccabarozzi, Francesca Esposito
Publikováno v:
Mongelluzzo, G, Franzese, G, Cozzolino, F, Esposito, F, Ruggeri, A C, Porto, C, Molfese, C, Silvestro, S, Popa, C I, Scaccabarozzi, D, Saggin, B, Martin-Ortega, A, Arruego, I, De Mingo, J R, Santiuste, N A, Brienza, D, Cortecchia, F, Merrison, J P & Iversen, J J 2021, Performance analysis of the "microMED" optical particle counter in windy conditions . in Proceedings of 2021 IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2021 ., 9511691, IEEE, pp. 241-246, 8th IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2021, Virtual, Online, 22/06/2021 . https://doi.org/10.1109/MetroAeroSpace51421.2021.9511691
The Optical Particle Counter 'MicroMED' will be part of the ExoMars 2022 mission and aims to provide the first ever direct measurement of airborne Martian dust. The instrument has been tested at the INAF - OAC premises, where a Martian chamber is pre
Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere
Autor:
Naomi Murdoch, Jonathan Merrison, David Mimoun, J. J. Iversen, Anthony Sournac, Pierre-Yves Meslin, Roger C. Wiens, Ralph D. Lorenz, Xavier Jacob, Sylvestre Maurice, B. Chide, M. Bassas-Portus, Alexandre Cadu, Yannick Bury, Bruno Dubois
Publikováno v:
Icarus
Icarus, Elsevier, 2021, 354, pp.114060-114072. ⟨10.1016/j.icarus.2020.114060⟩
Chide, B, Murdoch, N, Bury, Y, Maurice, S, Jacob, X, Merrison, J P, Iversen, J J, Meslin, P Y, Bassas-Portús, M, Cadu, A, Sournac, A, Dubois, B, Lorenz, R D, Mimoun, D & Wiens, R C 2021, ' Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere ', Icarus, vol. 354, 114060 . https://doi.org/10.1016/j.icarus.2020.114060
Icarus, Elsevier, 2021, 354, pp.114060-114072. ⟨10.1016/j.icarus.2020.114060⟩
Chide, B, Murdoch, N, Bury, Y, Maurice, S, Jacob, X, Merrison, J P, Iversen, J J, Meslin, P Y, Bassas-Portús, M, Cadu, A, Sournac, A, Dubois, B, Lorenz, R D, Mimoun, D & Wiens, R C 2021, ' Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere ', Icarus, vol. 354, 114060 . https://doi.org/10.1016/j.icarus.2020.114060
Located on top of the mast of the Mars 2020 Perseverance rover, the SuperCam instrument suite includes a microphone to record audible sounds from 100 Hz to 10 kHz on the surface of Mars. It will support SuperCam’s Laser-Induced Breakdown Spectrosco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dffb03f20d972985f40a27c17e20c04
https://oatao.univ-toulouse.fr/26971/
https://oatao.univ-toulouse.fr/26971/
Publikováno v:
Proc Natl Acad Sci U S A
Proceedings of the National Academy of Sciences
Andreotti, B, Claudin, P, Iversen, J J, Merrison, J P & Rasmussen, K R 2021, ' A lower-than-expected saltation threshold at Martian pressure and below ', Proceedings of the National Academy of Sciences of the United States of America, vol. 118, no. 5, e2012386118 . https://doi.org/10.1073/pnas.2012386118
Proceedings of the National Academy of Sciences
Andreotti, B, Claudin, P, Iversen, J J, Merrison, J P & Rasmussen, K R 2021, ' A lower-than-expected saltation threshold at Martian pressure and below ', Proceedings of the National Academy of Sciences of the United States of America, vol. 118, no. 5, e2012386118 . https://doi.org/10.1073/pnas.2012386118
Aeolian sediment transport is observed to occur on Mars as well as other extraterrestrial environments, generating ripples and dunes as on Earth. The search for terrestrial analogues of planetary bedforms, as well as environmental simulation experime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b5e0257c225457c2398988c958eb10a
Autor:
Tullio Ricci, Keld Rømer Rasmussen, J. J. Iversen, E. Del Bello, Jacopo Taddeucci, Daniele Andronico, Piergiorgio Scarlato, Jonathan Merrison
Publikováno v:
Del Bello, E, Taddeucci, J, Merrison, J P, Rasmussen, K R, Andronico, D, Ricci, T, Scarlato, P & Iversen, J J 2021, ' Field-based measurements of volcanic ash resuspension by wind ', Earth and Planetary Science Letters, vol. 554, 116684 . https://doi.org/10.1016/j.epsl.2020.116684
The resuspension of volcanic ash by wind is a significant source of hazard during and after volcanic eruptions. Parameterizing and modeling ash resuspension requires direct measurement of the minimum wind shear stress required to move particles, usua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bd71c9a8984bdb3b39fb837194077b1
https://pure.au.dk/portal/da/publications/fieldbased-measurements-of-volcanic-ash-resuspension-by-wind(bb8586d2-7579-4676-810b-e096d4d9e392).html
https://pure.au.dk/portal/da/publications/fieldbased-measurements-of-volcanic-ash-resuspension-by-wind(bb8586d2-7579-4676-810b-e096d4d9e392).html
Autor:
Keld Rømer Rasmussen, Tullio Ricci, Elisabetta Del Bello, J. J. Iversen, Jacopo Taddeucci, Daniele Andronico, Piergiorgio Scarlato, Jonathan Merrison
The resuspension of volcanic ash deposits by wind is a well-known source of hazard following explosive eruptions. Besides the mail control exerted by the local wind field, ash resuspension is also influenced by: 1) atmospheric humidity; 2) features o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c6086408666353c3489d81c6f9a2abb
https://doi.org/10.5194/egusphere-egu2020-21556
https://doi.org/10.5194/egusphere-egu2020-21556
Autor:
J. J. Iversen, Jonathan Merrison, Robert D. White, Don Banfield, Ian Neeson, Edward S. Schmid
Publikováno v:
AIAA Scitech 2020 Forum.
Autor:
Giacomo Colombatti, Alessio Aboudan, C. Bettanini, J. J. Iversen, Cesare Molfese, John Merrison, Anselmo Cecere, Francesca Esposito, Stefano Debei
Publikováno v:
Measurement
Colombatti, G, Bettanini, C, Aboudan, A, Debei, S, Esposito, F, Molfese, C, Cecere, A, Merrison, J & Iversen, J J 2018, ' MarsTEM sensor simulations in Martian dust environment ', Measurement: Journal of the International Measurement Confederation, vol. 122, pp. 453-458 . https://doi.org/10.1016/j.measurement.2017.12.043
Colombatti, G, Bettanini, C, Aboudan, A, Debei, S, Esposito, F, Molfese, C, Cecere, A, Merrison, J & Iversen, J J 2018, ' MarsTEM sensor simulations in Martian dust environment ', Measurement: Journal of the International Measurement Confederation, vol. 122, pp. 453-458 . https://doi.org/10.1016/j.measurement.2017.12.043
A wind tunnel test campaign has been conducted prior to the landing of the Exomars2016 EDM module on the Meridiani Planum on the 19th of October 2016. Test were performed in the Mars wind tunnel facility at Aahrus University (DK) under the 2015 Europ
Autor:
M. Bassas-Portus, Naomi Murdoch, V. Godiver, David Mimoun, Xavier Jacob, B. Chide, Jérémie Lasue, P. Cais, J. J. Iversen, A. Hynes, Anthony Sournac, Jonathan Merrison, L. Parès, Roger C. Wiens, Sylvestre Maurice, Alexandre Cadu, C. Moretto, P. Bernadi, Ralph D. Lorenz, C. Velasco
Publikováno v:
Planetary and Space Science
Planetary and Space Science, 2019, 165, pp.260-271. ⟨10.1016/j.pss.2018.09.009⟩
Planetary and Space Science, Elsevier, 2019, 165, pp.260-271. ⟨10.1016/j.pss.2018.09.009⟩
Murdoch, N, Chide, B, Lasue, J, Cadu, A, Sournac, A, Bassas-Portús, M, Jacob, X, Merrison, J, Iversen, J J, Moretto, C, Velasco, C, Parès, L, Hynes, A, Godiver, V, Lorenz, R D, Cais, P, Bernadi, P, Maurice, S, Wiens, R C & Mimoun, D 2019, ' Laser-induced breakdown spectroscopy acoustic testing of the Mars 2020 microphone ', Planetary and Space Science, vol. 165, no. January, pp. 260-271 . https://doi.org/10.1016/j.pss.2018.09.009
Planetary and Space Science, 2019, 165, pp.260-271. ⟨10.1016/j.pss.2018.09.009⟩
Planetary and Space Science, Elsevier, 2019, 165, pp.260-271. ⟨10.1016/j.pss.2018.09.009⟩
Murdoch, N, Chide, B, Lasue, J, Cadu, A, Sournac, A, Bassas-Portús, M, Jacob, X, Merrison, J, Iversen, J J, Moretto, C, Velasco, C, Parès, L, Hynes, A, Godiver, V, Lorenz, R D, Cais, P, Bernadi, P, Maurice, S, Wiens, R C & Mimoun, D 2019, ' Laser-induced breakdown spectroscopy acoustic testing of the Mars 2020 microphone ', Planetary and Space Science, vol. 165, no. January, pp. 260-271 . https://doi.org/10.1016/j.pss.2018.09.009
International audience; The SuperCam instrument suite onboard the Mars 2020 rover will include the Mars Microphone, an experiment designed to record the sounds of the SuperCam laser strikes on rocks and also aeolian noise. In order to record shock wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2106e085f79909a465971dac8b8888df
https://hal.science/hal-02000690/document
https://hal.science/hal-02000690/document
Autor:
J. J. Iversen, Ganna Portyankina, Candice Hansen, Klaus-Michael Aye, Nicolas Thomas, Zurine Yoldi, Antoine Pommerol, Jonathan Merrison
Publikováno v:
Portyankina, G, Merrison, J, Iversen, J J, Yoldi, Z, Hansen, C J, Aye, K M, Pommerol, A & Thomas, N 2019, ' Laboratory investigations of the physical state of CO 2 ice in a simulated Martian environment ', Icarus, vol. 322, no. April, pp. 210-220 . https://doi.org/10.1016/j.icarus.2018.04.021
Icarus
Icarus
We have experimentally investigated CO2 ice condensation under conditions similar to those expected in the Martian polar areas using the Environmental Wind Tunnel of Aarhus University in the framework of Trans-National Access opportunities within the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5ae3fe0e1e0c4396902949ea6f4c695
https://pure.au.dk/portal/da/publications/laboratory-investigations-of-the-physical-state-of-co2-ice-in-a-simulated-martian-environment(a6202386-90b3-47e4-92d1-a905f83833fc).html
https://pure.au.dk/portal/da/publications/laboratory-investigations-of-the-physical-state-of-co2-ice-in-a-simulated-martian-environment(a6202386-90b3-47e4-92d1-a905f83833fc).html
Publikováno v:
Journal of Aerosol Science
Jakobsen, A B, Merrison, J & Iversen, J J 2019, ' Laboratory study of aerosol settling velocities using Laser Doppler velocimetry ', Journal of Aerosol Science, vol. 135, pp. 58-71 . https://doi.org/10.1016/j.jaerosci.2019.05.003
Jakobsen, A B, Merrison, J & Iversen, J J 2019, ' Laboratory study of aerosol settling velocities using Laser Doppler velocimetry ', Journal of Aerosol Science, vol. 135, pp. 58-71 . https://doi.org/10.1016/j.jaerosci.2019.05.003
As a method to experimentally study aerodynamic drag the terminal settling velocities of aerosolized silica and glass microspheres (with sizes of 1–44 μm) have been measured at various gas pressures in the range 0.6–10 mbar and using various gas