Results 41 to 50 of about 35,939 (297)
Eos, Transactions American Geophysical Union, 1993 The Canadian Space Geodesy Forum (CANSPACE) is an electronic communications‐based information dissemination and discussion group that was established several years ago to help improve communication among scientists and engineers working with space geodesy techniques. News, comments, questions, and answers are exchanged among forum participants by means
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TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms
Advanced Robotics Research, EarlyView.A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello +7 more
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Thermosphere model assessment for geomagnetic storms from 2001 to 2023
Journal of Space Weather and Space ClimateWe present an updated study for thermosphere model assessment under geomagnetic storm conditions, defined when the geomagnetic index ap = 80 or larger.
Bruinsma Sean, Laurens Sophie
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Discoveries from space exploration [PDF]
, 1964 Space science contributions in astrophysics, geodesy, geology, meteorology, and ...
Jastrow, R.
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Space-Time Reference with an Optical Link
, 2015 We describe a method for realizing a high-performance Space-Time Reference (STR) using a stable atomic clock in a precisely defined orbit and synchronizing the orbiting clock to high-accuracy atomic clocks on the ground.
Berceau, Paul +3 more
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Sleep Alters the Velocity of Physiological Brain Pulsations in Humans
Advanced Science, EarlyView.Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy +13 more
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ICESat‐2 Constraint Analysis and Monitoring System (CAMS)
Earth and Space Science, 2021 The Ice, Cloud and land Elevation Satellite‐2 was launched on 15 September 2018 with mission goals of collecting surface elevation data that can precisely measure ice sheet topography, cloud and aerosol heights, land topography, as well as vegetation ...
T. W. Rebold +5 more
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Advanced Science, EarlyView.By integrating single‐nuclei and spatial transcriptomics, this study presents a stereoscopic landscape of maize leaf to Puccinia polysora infection. Epidermal and mesophyll cells initiate primary defenses via RLPs/RLKs and jasmonic acid signaling. Cell‐cell communication analyses further reveal the underlying the dynamics of the underlying immune ...
Qiongqiong Wang +16 more
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RF Environment Test on a Proposed Site for the Sensor Station of the Next Generation Satellite Navigation System, GALILEO: II. The Result of the Test on the Candidate Site in the Year of 2007 by KASI and ESA [PDF]
Journal of Astronomy and Space Sciences, 2008 A RF environmental field test for the proposed Galileo Sensor Station site was done by Alcatel Alenia technical team contracted by European Space Agency (ESA) and the Space Geodesy division of Korea Astronomy and Space Science Institute at the Korean ...
Jung Hyun Jo +7 more
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Eos, Transactions American Geophysical Union, 1988 Space Geodesy and Geodynamics is a collection of 15 articles concerned with space‐based technologies for measuring the gravity field, shape, and deformation of the Earth, and the important geophysical problems that can be studied using these technologies.
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