Results 71 to 80 of about 76,454 (246)
Journal of Raman Spectroscopy, EarlyView.This study presents a hierarchical Raman‐based classification model for determining the elemental composition of garnets within complex solid‐solution systems. The workflow combines spectral preprocessing, dimensionality reduction, and two‐level classification: first distinguishing between pyralspite and ugrandite groups, and then classifying ...
Sofia Julve‐Gonzalez +17 more
wiley +1 more source
Progress in Resource Evaluation Using a Handheld Raman Instrument Developed for Astronaut Missions
Journal of Raman Spectroscopy, EarlyView.Analogue studies were undertaken using a prototype, handheld Raman spectrometer (developed for astronaut usage on the moon) to collect data that would indicate the presence of water and help develop the technology to search for valuable trace elements (such as lithium and caesium).
J. G. T. Armstrong +5 more
wiley +1 more source
International Astronomical Union Colloquium, 1971 The Martian satellites are some of the most interesting and accessible objects in the solar system, and therefore worth studying or even visiting. As small bodies, on the order of kilometers in diameter (see table I), they may have experienced no internal heating or volcanism, and could therefore be original condensations in the solar system.
openaire +2 more sources
Current understanding of electroautotrophy and its relevance in astrobiology‐related research
mLife, EarlyView.Abstract Electroautotrophy—the use of extracellular electrons as the primary energy source for autotrophic metabolism—remains understudied compared to photoautotrophy and chemoautotrophy. Its occurrence in deep‐earth and deep‐sea environments suggests profound implications for astrobiology, yet electroautotrophic microorganisms remain poorly explored ...
Quansheng Wang, Maggie C. Y. Lau Vetter
wiley +1 more source
Constraints on Martian Chronology from Meteorites
Geosciences, 2020 Martian meteorites provide the only direct constraints on the timing of Martian accretion, core formation, magmatic differentiation, and ongoing volcanism. While many radiogenic isotope chronometers have been applied to a wide variety of Martian samples,
Zoltán Váci, Carl Agee
doaj +1 more source
Temporal analysis of all high-resolution Mars imaging products [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 A meta-data analysis has been performed of high-resolution imagery that have been acquired over the last four decades from Mars. More specifically, we are interested in two independent image parameters, the time that each image was acquired and the ...
P. Sidiropoulos, J.-P. Muller
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A spatially continuous magnetization model for Mars [PDF]
, 2005 [1] Using a three-component magnetic field data set at over 100,000 satellite points previously compiled for spherical harmonic analysis, we have produced a continuously varying magnetization model for Mars.
Acuña +60 more
core +1 more source
Science, 2008 Numerical dynamo modeling studies may explain the observation that strong magnetic fields are only found in Mars' southern hemisphere.
Langlais, Benoit, Amit, Hagay
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Journal of Field Robotics, EarlyView.ABSTRACT This paper investigates the penetration performance of soil‐burrowing probes with different tip designs during shallow‐depth penetration in various media, including terrestrial soils (Hostun sand) and well‐characterized planetary soil simulants (LHS‐1 Lunar regolith simulant and MGS‐1 Martian regolith simulant).
Serena Rosa Maria Pirrone +4 more
wiley +1 more source
SusMat, EarlyView.This review examines artificial intelligence (AI) applications across the complete lifecycle of sustainable materials for green energy. In the design phase, we review predictive algorithms and generative models as discovery approaches. The synthesis section covers AI‐optimized manufacturing processes, robotic experimentation, and automated ...
Yuehui Xian +4 more
wiley +1 more source