Results 41 to 50 of about 275 (87)

SuperCam Raman Activities at Jezero Crater, Mars: Observational Strategies, Data Processing, and Mineral Detections During the First 1000 Sols

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract The Mars 2020 Perseverance rover introduced Raman spectroscopy to in situ planetary exploration for the first time when it landed in Jezero crater on Mars in February 2021. The SuperCam instrument onboard Perseverance is a multi‐analytical tool capable of acquiring time‐resolved Raman data from Martian targets at standoff distances of a few ...
G. Lopez‐Reyes, J. A. Manrique, E. Clavé, A. Ollila, O. Beyssac, P. Pilleri, S. Bernard, E. Dehouck, M. Veneranda, S. K. Sharma, M. Nachon, J. Aramendia, O. Forni, F. Rull, T. Acosta‐Maeda, A. Brown, S. M. Angel, K. Castro, E. Cloutis, L. Coloma, J. Comellas, D. Delapp, R. Jakubek, S. Julve‐Gonzalez, E. Kelly, J. M. Madariaga, G. Montagnac, I. Poblacion, S. Schröder, S. A. Connell, I. Reyes‐Rodriguez, Z. U. Wolf, S. Maurice, O. Gasnault, S. Clegg, A. Cousin, R. C. Wiens, the SuperCam Raman Working Group and the SuperCam Team   +37 more
wiley   +1 more source

Influence of Impeller Geometry on the Unsteady Flow in a Centrifugal Fan: Numerical and Experimental Analyses

International Journal of Rotating Machinery, 2007
The aim of this study is to evaluate the influence of design parameters on the unsteady flow in a forward-curved centrifugal fan and their impact on the aeroacoustic behavior. To do so, numerical and experimental studies have been carried
M. Younsi, F. Bakir, S. Kouidri, R. Rey   +3 more
doaj   +1 more source

Discontinuous Galerkin schemes for the Stokes problem [PDF]

EPJ Web of Conferences
Our aim is to develop a robust and flexible code to simulate flows in nuclear core reactors. Discontinuous Galerkin schemes are thus proposed here to solve the Stokes problem, which stands as a fundamental element in fluid mechanics.
Mroueh Mayssa, Jamelot Erell, Omnes Pascal   +2 more
doaj   +1 more source

3D SR‐μXCT analysis for lithology detection: Application to Ryugu sample A0159

Meteoritics &Planetary Science, Volume 60, Issue 11, Page 2623-2654, November 2025.
Abstract Extraterrestrial breccia samples are formed through impact‐related processes that combine the fragments of distinct lithologies. As such, they are valuable indicators of the complex formation and evolution history of planetesimals in our solar system.
Léna Jossé, Zélia Dionnet, Alice Aléon‐Toppani, Rosario Brunetto, Andrew King, Emmanuel Gardés, Eva Heripré, Damien Loizeau, Sasha Cryan, Kentaro Hatakeda   +9 more
wiley   +1 more source

Micro-continuum modeling of biofilm growth coupled with hydrodynamics in OpenFOAM

SoftwareX
Biofilm growth is a complex phenomenon that couples species transport and reactions with fluid flow dynamics. Simulating these processes in complex geometries remains challenging due to the different time and space scales, as well as the associated ...
Romain Guibert, Pierre Horgue, Gérald Debenest   +2 more
doaj   +1 more source

Conformally Perforated Shellular Metamaterials with Tunable Thermomechanical and Acoustic Properties

Advanced Functional Materials, Volume 35, Issue 42, October 15, 2025.
This study introduces Conformally Perforated Shellular Metamaterials (CPSMs), which overcome TPMS design limitations by mapping 2D cellular layouts onto 3D surfaces. CPSMs exhibit enhanced elastic stiffness, thermal conductivity, and acoustic performance compared to intact P‐type shellulars, demonstrating their potential as multifunctional ...
Benyamin Shahryari, Armin Mirabolghasemi, Shahin Eskandari, Xin Chen, Jean‐François Deü, Roger Ohayon, Atef Mohany, Alex Kalamkarov, Abdolhamid Akbarzadeh   +8 more
wiley   +1 more source

Equilibrium states of homogeneous sheared compressible turbulence

AIP Advances, 2011
Equilibrium states of homogeneous compressible turbulence subjected to rapid shear is studied using rapid distortion theory (RDT). The purpose of this study is to determine the numerical solutions of unsteady linearized equations governing double ...
M. Riahi, T. Lili
doaj   +1 more source

Synchrotron 4D X‐Ray Computed Tomography of a Porous Limestone: Influence of Porosity on Deformation Mechanisms at Multiple Scales

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract This study investigates the relationship between deformation mechanisms and heterogeneity of porosity of a porous carbonate rock across several scales. The Saint Maximin limestone (SML), characterized by centimeter‐scale alternations of dense and porous zones, serves as a model rock to examine the evolution of deformation modes.
C. Doré‐Ossipyan, A. Quacquarelli, M. Bornert, J. Sulem, A. Dimanov   +4 more
wiley   +1 more source

Quantifying the Form‐Flow‐Saltation Dynamics of Aeolian Sand Ripples

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 10, October 2025.
Abstract Ripples are the most fundamental and ubiquitous aeolian bedforms formed on sandy surfaces, but their small size and fast response times make them inherently difficult to measure. However, these attributes also make ripples excellent flow indicators, and they have been used extensively in planetary locations for this purpose.
Joanna M. Nield, Matthew C. Baddock, Giles F. S. Wiggs, Jim Best, Kenneth T. Christensen, Pauline Delorme, Andrew Valdez, Nathaniel R. Bristow, Martin H. T. Hipondoka, Daniel P. Goss, Natasha S. Wallum, Philippe Claudin   +11 more
wiley   +1 more source

Modelling the normal bouncing dynamics of spheres in a viscous fluid

EPJ Web of Conferences, 2017
Bouncing motions of spheres in a viscous fluid are numerically investigated by an immersed boundary method to resolve the fluid flow around solids which is combined to a discrete element method for the particles motion and contact resolution.
Izard Edouard, Lacaze Laurent, Bonometti Thomas   +2 more
doaj   +1 more source