Results 91 to 100 of about 264,581 (310)
A Decade of GNSS Signal Disruptions in SMAP-R Full-Polarimetric Observations Worldwide
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingGlobal Navigation Satellite System–Reflectometry (GNSS-R) signals are frequently used to analyze surface scattering properties at L-band, providing valuable observations of Earth's surface conditions.
Nereida Rodriguez-Alvarez +2 more
doaj +1 more source
Aerospace, 2019 Adelis-SAMSON is a nano-satellite mission aimed at performing geo-location of target signals on Earth using a tight three-satellite formation in space. To maintain formation, each nano-satellite is equipped with a cold gas propulsion system.
Michael Zaberchik +3 more
doaj +1 more source
Performance analysis of the ascent propulsion system of the Apollo spacecraft [PDF]
Activities involved in the performance analysis of the Apollo lunar module ascent propulsion system are discussed. A description of the ascent propulsion system, including hardware, instrumentation, and system characteristics, is included.
Hooper, J. C., III
core +1 more source
Analytical, circle-to-circle low-thrust transfer trajectories with plane change [PDF]
, 2013 Orbit averaging techniques are used to develop analytical approximations of circle-to-circle low-thrust trajectory transfers with plane-change about the Sun.
Appourchaux T. +5 more
core +1 more source
Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review
Advanced Functional Materials, EarlyView.Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan +7 more
wiley +1 more source
Bioinspired Propulsion System for a Thunniform Robotic Fish. [PDF]
Biomimetics (Basel), 2022 Mitin I +5 more
europepmc +1 more source
Automated screening of propulsion system test data by neural networks, phase 1 [PDF]
The evaluation of propulsion system test and flight performance data involves reviewing an extremely large volume of sensor data generated by each test.
Hoyt, W. Andes, Whitehead, Bruce A.
core +1 more source
4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing
Advanced Functional Materials, EarlyView.A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot +7 more
wiley +1 more source
npj Climate and Atmospheric ScienceThe 2023/24 El Niño, emerging after a rare triple-dip La Niña, garnered global attention due to its potential to evolve into an extreme event, given the largest accumulation of warm water in the equatorial western Pacific since 1980.
Ji-Won Kim, Baijun Tian, Jin-Yi Yu
doaj +1 more source
An Overview of Cube-Satellite Propulsion Technologies and Trends
Aerospace, 2017 CubeSats provide a cost effective means to perform scientific and technological studies in space. Due to their affordability, CubeSat technologies have been diversely studied and developed by educational institutions, companies and space organizations ...
Akshay Reddy Tummala, Atri Dutta
doaj +1 more source