Results 31 to 40 of about 133,554 (298)

Multicriteria Selection of Elevation Control and Image Tie Points for Block Adjustment of ZY-3 Images and ICESat Data in Antarctica

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Integrating optical satellite images and laser altimetry data is essential to achieve high-accuracy mapping, especially in areas without ground control points.
Shijie Liu   +6 more
doaj   +1 more source

Retrieving water ice abundance in representative regions of the Moon’s South Pole using topography corrected SELENE MI images

open access: yesGeoscience Letters
Previous studies have reported the existence of water ice in the lunar polar regions, but estimations of water ice using different methods vary in certainty, precision, location, and abundance.
Xindi Long   +6 more
doaj   +1 more source

RAP-Net: A Region Affinity Propagation-Guided Semantic Segmentation Network for Plateau Karst Landform Remote Sensing Imagery

open access: yesRemote Sensing
Karst rocky desertification on the Qinghai–Tibet Plateau poses a severe threat to the region’s fragile ecosystem. Accordingly, the rapid and accurate delineation of plateau karst landforms is essential for monitoring ecological degradation and guiding ...
Dongsheng Zhong   +6 more
doaj   +1 more source

Decreased cold‐sensing function of the transient receptor potential channel TRPM8 from tailed amphibians

open access: yesFEBS Open Bio, EarlyView.
Despite frogs avoiding low temperatures, examination of four salamander species revealed that none avoided cold and all possessed cold tolerance. Functional analysis of TRPM8, a cold sensor, showed that all salamander TRPM8s had lost their cold sensitivity.
Tadahiro Sawao   +3 more
wiley   +1 more source

SHARAD-Based Detection and Estimation of Water–Ice Content in Korolev Crater at the North Pole of Mars

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The quest for water–ice is critical in the scientific exploration of Mars, as areas where water reservoirs have been identified could be attractive landing sites for future missions.
Yongjiu Feng   +9 more
doaj   +1 more source

Addressing Economic Insecurities Can Improve Patient‐Reported Outcomes in Lupus

open access: yesArthritis Care &Research, EarlyView.
Objective Economic insecurities, such as food, housing, transportation, and financial challenges, are modifiable risk factors and influence patient‐reported outcomes (PROs) in systemic lupus erythematosus (SLE). We examined the following: (1) associations between economic insecurities and PROs, and (2) the impact of screening and addressing economic ...
Jay Patel   +8 more
wiley   +1 more source

Combination ranging system and mapping radar [PDF]

open access: yes, 1969
Transmitter, radiating at a right angle to the spacecraft trajectory and intersecting the surface at a shallow angle, yields accurate radar maps of lunar or planetary surfaces. Earth based station receives the signal reflected from the planetary surface.
Goldstein, R. M., Horttor, R. L.
core   +1 more source

The Relative Lyapunov Indicators: Theory and Application to Dynamical Astronomy [PDF]

open access: yes, 2015
A recently introduced chaos detection method, the Relative Lyapunov Indicator (RLI) is investigated in the cases of symplectic mappings and continuous Hamiltonian systems.
Maffione, Nicolás, Sándor, Zsolt
core   +4 more sources

Generative 3D Reconstruction of Martian Surfaces using Monocular Images [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
High-resolution digital terrain models (DEM) are crucial for Mars scientific exploration and engineering demands, such as mission route planning, landing site selection, and topography research.
J. Cao   +8 more
doaj   +1 more source

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh   +6 more
wiley   +1 more source

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