Results 191 to 200 of about 1,117,392 (311)

Long-Term Stability Improvements of the Miniature Atomic Clock Through Enhanced Thermal Environmental Control. [PDF]

Sensors (Basel)
Gokie E, Omaraie J, Bandi TN.
europepmc   +1 more source

The Orchestration and Harmonics of Biogeochemical Cycles in a Southeastern USA Saltmarsh

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 12, December 2025.
Abstract Saltmarshes provide vital ecosystem services, including coastal protection and habitat for fisheries. While feedbacks influencing vertical sediment accretion in marshes are well‐documented, including those between relative sea level and primary production, relationships among nutrient cycles, flooding, and primary production remain less ...
James T. Morris, Karen Sundberg
wiley   +1 more source

Embodied cognitive intelligence guided Moon sample collection. [PDF]

Innovation (Camb)
Zhang C, Liu C, Duan S, Zheng X, Yu T, Zhang J.   +5 more
europepmc   +1 more source

A Novel Self‐Supervised Deep Learning Inversion Method Incorporating a Fast Forward Network for Transient Electromagnetic Data

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Deep learning (DL) is an increasingly popular method for inverting the transient electromagnetic (TEM) data. Currently, DL‐based inversion for TEM data primarily employs supervised learning methods that rely on labeled data sets to train the network.
Ziteng Li, Hai Li, Keying Li
wiley   +1 more source

Space weathering on the lunar nearside and farside constrained from Si isotopes. [PDF]

Nat Commun
Zhang HY, Yu HM, Tang HL, Lin YC, Xiao Z, Yang L, Kang JT, Shen J, Qin L, Huang F.   +9 more
europepmc   +1 more source

Premature Reentry of the Binar CubeSats Due To Underestimation of Solar and Geomagnetic Activities and Its Implication for Importance of Medium‐ and Long‐Term Space Weather Forecasts

Space Weather, Volume 23, Issue 12, December 2025.
Abstract The rapid development of low‐Earth orbit (LEO) satellites brings increased attention to spacecraft collisions, space debris, orbital decay, and satellite reentry. Neutral density and associated drag force on the satellite orbits elevate space risks, significantly determined by space weather disturbances, particularly geomagnetic storms.
Xin Wang, Ronglan Wang, Kunpeng Wang, Zhitao Yang, Tingling Ren, Jifeng Cao, Ming Li, Siqing Liu, Bingxian Luo, Chi Wang   +9 more
wiley   +1 more source

Positioning, navigation, and timing on the Moon and Mars with galactic cosmic rays. [PDF]

iScience
Leone G, Tanaka HKM, Holma M, Krishnan S, Duffy AR, Enqvist T, Kuusiniemi P, Joutsenvaara J, Cerretto G, Cantoni E, Sellone M, Marteau J, Lo Presti D, Szűcs JG, Varga D.   +14 more
europepmc   +1 more source

Defining ecological roles of sharks on coral reefs

Biological Reviews, Volume 100, Issue 6, Page 2707-2725, December 2025.
ABSTRACT Sharks have often been perceived to play a critical role in the dynamics of coral reef ecosystems globally. Yet, there is relatively little evidence to support this idea across all but a limited set of species and contexts. Research on the roles and importance of reef sharks has been complicated by logistical challenges in collecting data on ...
Natalie V. Klinard, Christopher G. Mull, Michael R. Heithaus, M. Aaron MacNeil   +3 more
wiley   +1 more source

Comparison of Two Methods for Determination of Rhenium and Platinum‐Group Elements in Meteorites Using On‐Line and Off‐Line Matrix Separation Modes

Geostandards and Geoanalytical Research, Volume 49, Issue 4, Page 737-750, December 2025.
Key Points PEEK tubing has been observed to adsorb Pd and Pt ions, resulting in significantly reduced recoveries of Pd and Pt elements. HPA‐S provides a more effective dissolution for meteorite samples than Carius tube digestion, resulting in higher mass fractions for PGE.
Yuling Zeng, Guiqin Wang, Thomas C. Meisel   +2 more
wiley   +1 more source

Moon Sensor Station to Improve the Performance of Lunar Satellite Navigation Systems. [PDF]

Sensors (Basel)
Leonardi M, Sirbu G, Carosi M, Stallo C, Di Lauro C.   +4 more
europepmc   +1 more source