Results 41 to 50 of about 4,892 (167)

Combination of precise orbit solutions for Sentinel-3A using Variance Component Estimation [PDF]

Advances in Geosciences, 2019
In this article we analyze the benefit of computing a combined solution from individual orbit solutions for the low Earth orbiting satellite Sentinel-3A.
C. Kobel, D. Arnold, A. Jäggi
doaj   +1 more source

Autonomous Planning Algorithm for Satellite Laser Ranging Tasks Based on Rolling Horizon Optimization Framework

Remote Sensing, 2023
Observation task planning is a key issue and the first step in the development of automated Satellite Laser Ranging (SLR) systems. Aiming at the problem of dynamic change of cloud cover during SLR operation, this paper proposes an autonomous mission ...
Zequn Lv, Cunbo Fan, Ning An, Jian Gao, Haitao Zhang, Lei Ma, Guanyu Wen, Xue Dong, Chenzhi Liu   +8 more
doaj   +1 more source

On the possibility of measuring relativistic gravitational effects with a LAGEOS-LAGEOS II-OPTIS-mission

, 2002
In this paper we wish to preliminary investigate if it would be possible to use the orbital data from the proposed OPTIS mission together with those from the existing geodetic passive SLR LAGEOS and LAGEOS II satellites in order to perform precise ...
Ciufolini I, Ciufolini I, Ciufolini I, Ciufolini I, Claus Lämmerzahl, Dittus H Lämmerzahl C Peters A Schiller S, Eanes R J, Erricos C Pavlis, Everitt C W F, Hansjörg Dittus, Huang T, Ignazio Ciufolini, Iorio L, Iorio L, Iorio L Morea A, Lemoine F G, Lense J, Lockerbie N, Lorenzo Iorio, Lämmerzahl C, Lämmerzahl C, Maleki L, Mashhoon B, Nobili A M, Pavlis E C, Pound R V, Ries J C, Ries J C Eanes R J Tapley B D Peterson G E, Sanders A J, Schiff L I, Schäfer G, Stephan Schiller, Tapley B D Chambers D P Cheng M K Kim M C Poole S Ries J C, Touboul P, Turyshev S Shao M Nordvedt K, Turyshev S Williams J G Nordvedt K Shao M Murphy T W, Will C M   +36 more
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Space-based tests of gravity with laser ranging [PDF]

, 2006
Existing capabilities in laser ranging, optical interferometry and metrology, in combination with precision frequency standards, atom-based quantum sensors, and drag-free technologies, are critical for the space-based tests of fundamental physics; as a ...
JAMES G. WILLIAMS, Nordtvedt K. L., SLAVA G. TURYSHEV, Veillet C., Williams J. G.   +4 more
core   +2 more sources

Recent Ocean Tide Models Comparison From the GRACE Perspective

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract A model of ocean tides is generally used to remove the dynamic tidal signal in satellite gravimetric observations, such as GRACE(‐FO). Model imperfections can cause stripes and long period aliasing errors in monthly gravity solutions. Recent developments in ocean tide modeling have substantially improved accuracy at high latitudes and in ...
Chaoyang Zhang, Nicholas A. Childress, Srinivas V. Bettadpur, Mark E. Tamisiea, Himanshu Save, Byron D. Tapley   +5 more
wiley   +1 more source

Constraints from orbital motions around the Earth of the environmental fifth-force hypothesis for the OPERA superluminal neutrino phenomenology

, 2012
It has been recently suggested by Dvali and Vikman that the superluminal neutrino phenomenology of the OPERA experiment may be due to an environmental feature of the Earth, naturally yielding a long-range fifth force of gravitational origin whose ...
A Jäggi, B Bertotti, B Tapley, C Burgess, C Förste, C Reigber, C Talmadge, CA Wagner, D Krause, D Lucchesi, D Lucchesi, D Lüst, DM Lucchesi, E Fischbach, E Giannetto, E Recami, E Reich, F Barthelmes, F Lemoine, G Dvali, G Dvali, G Li, GS Adkins, H Goiginger, H Päs, I Ciufolini, I Haranas, I Haranas, I Haranas, J Alfaro, J Dickey, J Moffat, J Müller, J Müller, J Ries, J Williams, K Nordtvedt, K Nordtvedt, K Nordtvedt, L Iorio, L Iorio, L Iorio, L Iorio, L Tsang, L. Iorio, M Anacleto, M Pearlman, M Sereno, N Itoh, N Kolosnitsyn, N Kolosnitsyn, O Bertolami, R Konoplya, R March, R Pail, S Hollenberg, S Reynaud, V Gharibyan, X-J Bi, X-M Deng   +59 more
core   +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

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

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

Hyperspectral Imaging: The Intelligent Eye to Uncover the Password of Plant Science

Modern Agriculture, Volume 3, Issue 2, December 2025.
Hyperspectral imaging (HSI) has emerged as a powerful non‐destructive technique for characterisation of the plant phenotype and physiological traits. The ongoing development of cost‐effective hardware, coupled with standardised acquisition protocols and open‐access spectral libraries, is accelerating its integration with multi‐omics approaches to ...
Jingyan Song, Haifeng Liang, Bingjie Lu, Jing Guo, Yuan Gao, Xiao Hu, Manlin Yang, Xiaofan Li, Zhenyu Wang, Yongqi Chen, Yinyin Zhang, Shen Su, Zhangyun Gao, Shijie Li, Ping Chen, Jing Wang, Wanneng Yang, Hui Feng   +17 more
wiley   +1 more source