Results 81 to 90 of about 17,557 (292)
Effects of the Earth’s Irregular Rotation on the Moon-Based Synthetic Aperture Radar Imaging
IEEE Access, 2019 The Moon-based Synthetic Aperture Radar (SAR) offers an exceptionally wide spatial coverage and short revisit time for the Earth observation. However, the complex imaging geometry in Moon-based SAR-Earth's target motion, where both the Earth's rotation ...
Zhen Xu, Kun-Shan Chen, Guoqing Zhou
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An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials
Advanced Engineering Materials, EarlyView.An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut +16 more
wiley +1 more source
Interactive Earth rotation parameters through the Web
, 2003 International audienceOn the WEB site of the Earth Orientation Center(http://hpiers.obspm.fr/eop-pc) we propose a panel of interactive toolsdevoted to the study of the Earth rotation : selection and plots of theEarth Orientation Parameters (EOP ...
Bizouard, Christian
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EARTH ORIENTATION PARAMETERS FROM SATELLITE LASER RANGING
, 2004 14th International Laser Workshop, San Fernando, Spain, June 7 - 11, 2004We present the new re-analysis of Satellite Laser Ranging (SLR) data to LAGEOS 1/2 and ETALON 1/2 for the definition of the Terrestrial Reference Frame (TRF) and its crust-fixed ...
Pavlis, Erricos C.
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Advanced Engineering Materials, EarlyView.Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley +1 more source
Study on Zero-Doppler Centroid Control for GEO SAR Ground Observation
International Journal of Antennas and Propagation, 2014 In geosynchronous Earth orbit SAR (GEO SAR), Doppler centroid compensation is a key step for imaging process, which could be performed by the attitude steering of a satellite platform. However, this zero-Doppler centroid control method does not work well
Yicheng Jiang +4 more
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Models and nomenclature in Earth rotation
, 2009 International audienceThe celestial Earth's orientation is required for many applications in fundamental astronomy and geodesy; it is currently determined with sub-milliarcsecond accuracy by astro-geodetic observations.
Capitaine, Nicole, Nicole Capitaine
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Estimation of Earth rotation parameters from Lunar Laser Ranging data
, 2022 In addition to Very Long Baseline Interferometry (VLBI) the Earth rotation phase ∆UT1 can also be determined directly from Lunar Laser Ranging (LLR) data.
Singh, Vishwa Vijay +3 more
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Advanced Engineering Materials, EarlyView.Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon +3 more
wiley +1 more source
Improved estimation of earth rotation parameters using the adaptive ridge regression
, 1998 The multicollinearity among regression variables is a common phenomenon in the reduction of astronomical data. The phenomenon of multicollinearity and the diagnostic factors are introduced first.
Huang, CL, Jin, WJ
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