Results 61 to 70 of about 1,124 (172)

Contrasting Rare Earth Element Signatures Between Stromatolitic Carbonates and Lagoon Waters at Shark Bay, Western Australia: Implications for Paleo‐Environmental Reconstructions of Microbial Habitats

Geobiology, Volume 24, Issue 3, May/June 2026.
ABSTRACT Rare earth elements and yttrium (REY) signatures in stromatolitic carbonates have emerged as powerful geochemical proxies for reconstructing paleo‐depositional environments of microbial habitats. The applicability of such a proxy relies on the assumption that REY substitutes for calcium into crystal lattices, directly reflecting the ...
S. Viehmann, A.‐L. Zocher, S. V. Hohl, D. Kraemer, A. Martin, M. Markowska, S. Weyer   +6 more
wiley   +1 more source

Spin motion determination of the Envisat satellite through laser ranging measurements from a single pass measured by a single station [PDF]

, 2018
The Satellite Laser Ranging (SLR) technology is used to accurately determine the position of space objects equipped with so-called retro-reflectors or retro-reflector arrays (RRA).
Schildknecht, Thomas, Thomas Schildknecht, Pittet, Jean-Noël, Jean-Noël Pittet, Jiří Šilha, Silha, Jiri   +5 more
core   +1 more source

Time-Variable Gravity Field from the Combination of HLSST and SLR

Remote Sensing, 2021
The Earth’s time-variable gravity field is of great significance to study mass change within the Earth’s system. Since 2002, the NASA-DLR Gravity Recovery and Climate Experiment (GRACE) and its successor GRACE follow-on mission provide observations of ...
Luping Zhong, Krzysztof Sośnica, Matthias Weigelt, Bingshi Liu, Xiancai Zou   +4 more
doaj   +1 more source

Circularly Polarized Polariton Lasing from Spin‐Momentum Locking in Deformed Plasmonic Kagome Cavities

Advanced Materials, Volume 38, Issue 9, 12 February 2026.
This paper describes room‐temperature polariton lasing with high circular polarization from deformed plasmonic Kagome lattice cavities strongly coupled to colloidal CdSe nanoplatelets. Spin‐selectivity from cavity modes resulted in control over the handedness of circular polarization as well as the direction of polariton lasing, opening prospects for ...
Zhaoyun Zheng, Chuchuan Hong, Siamak Khorasani, Shreya K. Patel, Marc R. Bourgeois, David J. Masiello, Teri W. Odom   +6 more
wiley   +1 more source

An Updated Estimate of Geocenter Variation from Analysis of SLR Data

Remote Sensing
The Earth’s center of mass (CM) is defined in satellite orbit dynamics as the center of mass of the entire Earth system, including the solid Earth, oceans, cryosphere, and atmosphere.
Minkang Cheng
doaj   +1 more source

DeepRec: Global Terrestrial Water Storage Reconstruction Since 1941 Using Spatiotemporal‐Aware Deep Learning Model

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Terrestrial water storage (TWS) plays an important role in describing the Earth system, as water availability is decisive for ecosystems and human development. Since 2002, the Gravity Recovery and Climate Experiment (GRACE) and its Follow‐On (GRACE‐FO) mission have measured TWS anomalies with unprecedented accuracy, enabling a leap in ...
Luis Q. Gentner, Junyang Gou, Mohammad J. Tourian, Lara Börger, Nico Sneeuw, Benedikt Soja   +5 more
wiley   +1 more source

Satellite signatures in SLR observations [PDF]

, 1993
We examine the evidence for the detection of satellite-dependent signatures in the laser range observations obtained by the UK single-photon Satellite Laser Ranging (SLR) System models of the expected observation distributions from Ajisai and Lageos are ...
Appleby, G. M.
core   +1 more source

Simultaneous laser ranging and communication from an Earth-based satellite laser ranging station to the Lunar Reconnaissance Orbiter in lunar orbit [PDF]

, 2013
We report a free space laser communication experiment from the satellite laser ranging (SLR) station at NASA Goddard Space Flight Center (GSFC) to the Lunar Reconnaissance Orbiter (LRO) in lunar orbit through the on board one-way Laser Ranging (LR ...
Skillman, David R., Xiaoli Sun, Krainak, Michael A., Hoffman, Evan D., Michael A. Krainak, Zuber, Maria T., Wai H. Fong, Leva McIntire, Dandan Mao, Neumann, Gregory A., Jan F. McGarry, Evan D. Hoffman, Frederic M. Davidson, Sun, Xiaoli, McIntire, Leva, Zellar, Ronald S., Gregory A. Neumann, Smith, David E., Ronald S. Zellar, David R. Skillman, David E. Smith, Smith, David Edmund, Maria T. Zuber, Fong, Wai H., Mao, Dandan, McGarry, Jan F., Zuber, Maria, Davidson, Frederic M.   +27 more
core   +2 more sources

Validation of Dynamic Deuterium Metabolic Imaging (DMI) for the Measurement of Cerebral Metabolic Rates of Glucose in Rat

NMR in Biomedicine, Volume 39, Issue 1, January 2026.
Deuterium metabolic imaging (DMI) is a novel metabolic imaging technique where 2H MRSI is combined with the administration of 2H‐labeled substrates. Analysis of dynamic DMI is complicated by 2H label losses and kinetic isotope effects. Here, we modified a 13C‐based metabolic model to account for these effects in rat brain and validated DMI flux rates ...
Claudius S. Mathy, Monique A. Thomas, Graeme F. Mason, Robin A. de Graaf, Henk M. De Feyter   +4 more
wiley   +1 more source

Earth Rotation and Gravity Field Parameters from Satellite Laser Ranging [PDF]

, 2014
We present the results from a simultaneous estimation of the gravity field, Earth rotation parameters, and station coordinates from combined SLR solutions incorporating up to nine geodetic satellites: LAGEOS-1/2, Starlette, Stella, AJISAI, Beacon-C ...
Thaller, Daniela, Dach, Rolf, Meyer, Ulrich, Sosnica, Krzysztof Jakub, Jäggi, Adrian   +4 more
core