Results 191 to 200 of about 62,716 (304)

Natural occurrence of pure nano-polycrystalline diamond from impact crater. [PDF]

Sci Rep, 2015
Ohfuji H, Irifune T, Litasov KD, Yamashita T, Isobe F, Afanasiev VP, Pokhilenko NP.   +6 more
europepmc   +1 more source

Increased small impactor flux on the Moon as inferred from regolith thickness at the Chang'E-5 Region. [PDF]

Nat Commun
Zhang M, Jia B, Eke VR, Fa W.
europepmc   +1 more source

Searching for surficial water ice in lunar permanently shaded regions (PSRs) with ShadowCam. [PDF]

Sci Adv
Li S, Robinson MS, Denevi BW, Manheim MR, Mazarico E, Wagner RV, Speyerer EJ, Mahanti P.   +7 more
europepmc   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki, Michael E. Jackson, Glen S. Mattioli, David J. Mencin, Karl Feaux, Donna J. Charlevoix   +5 more
wiley   +1 more source

Experimental Study on the Impact Resistance of UHMWPE Flexible Film Against Hypervelocity Particles. [PDF]

Polymers (Basel)
Liu C, Rao Z, Liu H, Zhao C, Wang Y, Khaziev A.   +5 more
europepmc   +1 more source

Enhancing IR‐MALDESI MSI Spatial Resolution Through Beam Constriction With a Ring‐Actuated Iris

Rapid Communications in Mass Spectrometry, Volume 40, Issue 16, 30 August 2026.
ABSTRACT Rationale Infrared matrix‐assisted laser desorption electrospray ionization (IR‐MALDESI) mass spectrometry imaging (MSI) enables label‐free, spatially resolved molecular analysis of biological tissues under ambient conditions. While improving spatial resolution is important for mapping fine tissue structures, mid‐infrared (IR) lasers are ...
Sarah M. Ashbacher, Seth M. Eisenberg, Alexander A. C. Wainwright, Aosheng Gu, Syeda N. Mahdia, R. J. Dwayne Miller, David C. Muddiman   +6 more
wiley   +1 more source

Lunar chronology model with the Chang'e-6 farside samples and implications for the early impact history. [PDF]

Sci Adv
Yue Z, Gou S, Wang Y, Li H, Michael G, Liu J, Sun S, Lin Y, Di K, Li Q, Chen Y, Yang W, Xie B, Hu S, Li S, Zheng B, Mao T, Li X, Wu F.   +18 more
europepmc   +1 more source

Erosion of granular sediments by submerged impinging jets: Particle size effects and cohesion onset

AIChE Journal, Volume 72, Issue 6, June 2026.
Abstract This study investigates the erosion behavior and modeling of glass particle beds under impinging jet conditions, with a focus on particle size effects and the onset of cohesion. Ultrasonic profiling is implemented to scan and measure static crater profiles.
Ahmad Mohamadiyeh, Jeffrey Peakall, Michael Fairweather, Martyn Barnes, Timothy N. Hunter   +4 more
wiley   +1 more source

Unraveling the Cretaceous-Paleogene boundary event across the Gulf of Mexico-High-resolution Rayon reef section, Valles-San Luis Potosi platform, Mexico. [PDF]

PLoS One
Bartali R, Urrutia-Fucugauchi J, Torres-Hernandez JR, Perez-Cruz L, Tovar-Tovar RL.   +4 more
europepmc   +1 more source

Progressively Fenitised Schist and Carbonatitic Clasts From a Metasomatic Aureole Beneath the Alkalic Dunedin Volcano, Otago, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Clasts of albite‐porphyroblastic quartzofeldspathic schist, derived from the Otago Schist basement, occur within the Port Chalmers Breccia, a diatreme at the centre of the Dunedin stratovolcano, New Zealand. Schists have undergone varying degrees of replacement reactions (at temperatures of 300° to >500°C) producing hornfelses, with Ca‐ and K‐enriched ...
Alan F. Cooper
wiley   +1 more source