Results 171 to 180 of about 131,482 (278)

Automated Analysis of Pollutants in Wastewater Using Atmospheric Pressure Gas Chromatography‐Tandem Quadrupole Mass Spectrometer With Robotic Autosampler and Solid Phase Micro Extraction

open access: yesJournal of Separation Science, Volume 48, Issue 11, November 2025.
ABSTRACT The analysis of organic pollutants using gas chromatography coupled to mass spectrometer (GC‐MS) with electron impact (EI) ionization and liquid–liquid or solid‐phase extraction (LLE or SPE) often suffer from a limited selectivity and arduous sample preparation.
Dnyaneshwar Shinde   +10 more
wiley   +1 more source

Compact Spectral Imaging: A Review of Miniaturized and Integrated Systems

open access: yesLaser &Photonics Reviews, Volume 19, Issue 21, November 6, 2025.
This review explores the rapid shift toward compact spectral imaging systems by examining four key design paradigms: Do‐It‐Yourself (DIY) platforms, freeform optics, filter‐on‐chip integration, and multifunctional metasurfaces. The discussion highlights critical applications in medicine, agriculture, and environmental monitoring, providing comparative ...
Sani Mukhtar, Amir Arbabi, Jaime Viegas
wiley   +1 more source

Transient Hydrology in Amazonis Planitia (Mars) in the Aftermath of the Tooting Impact

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Hydrological flows generated by meteoroid impact are still largely unexplored on Mars and may also have implications for Earth. We reconstructed the hydrological sequence initiated on Mars by a less than 3 Ma old meteoroid impact that formed the 28 km‐wide Tooting crater on Amazonis Planitia, an ice‐bearing region.
Fabio Vittorio De Blasio   +2 more
wiley   +1 more source

Robotic Arm Geomechanical Experiments and Analyses to Enable Lunar Science and Settlement

open access: yesEarth and Space Science, Volume 12, Issue 11, November 2025.
Abstract This study evaluates the capability of a robotic arm equipped with a force‐torque sensor and a specially designed scoop to perform geomechanical characterization of high‐fidelity lunar highlands regolith simulant. Experiments focused on pressure‐sinkage, shear strength, and angle of repose to assess the performance and applicability of the ...
J. M. Long‐Fox   +9 more
wiley   +1 more source

Can Spacecraft‐Borne Contamination Compromise Our Understanding of Lunar Ice Chemistry?

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Recent detections of water ice in the permanently shadowed regions (PSRs) at the lunar poles have reignited scientific and commercial interest in the exploration of Earth's closest neighbor. The frigid temperatures in PSRs operate as cold traps for volatiles and may represent large reservoirs of materials, including water ice and prebiotic ...
Francisca S. Paiva, Silvio Sinibaldi
wiley   +1 more source

Origin and abundance of water in carbonaceous asteroids

open access: green, 2017
Yves Marrocchi   +2 more
openalex   +2 more sources

Physicochemical Constraints on the Abiotic Polymerization of Nucleotides Into RNA

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 11, November 2025.
Abstract One of the key steps in the origin of life is the polymerization of nucleotides into nucleic acids like RNA. We have quantified the energetic impact of temperature, pressure, and composition on the polymerization of nucleotides into RNA using the Gibbs function. These Gibbs energies have been used to calculate the probability that a nucleotide
D. E. LaRowe, J. M. Dick
wiley   +1 more source

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