Results 61 to 70 of about 61,376 (298)
4D printing and its key technologies
Cailiao gongcheng, 2019 4D printing can be defined as the evolution of 3D printing structure in terms of shape, performance and function. It has time dependence, printer independence and predictability, and its smart dynamic performance creates promising capabilities and broad ...
SHEN Zi-cai +4 more
doaj +1 more source
Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions
Journal of Field Robotics, EarlyView.ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos +6 more
wiley +1 more source
A Dual-Prediction Framework for High-Energy Proton Flux Driven by Graph Neural Networks
IEEE AccessPredicting high-energy proton flux is essential for radiation-effect protection of satellite devices. We introduce a dual-prediction framework based on Graph Neural Networks (GNN) to model proton flux from both non-time-series and time-series ...
Jia Qiao +4 more
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International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada +4 more
wiley +1 more source
International Journal of Aerospace EngineeringControl moment gyro (CMG) can produce microvibration and influence the performance of sensitive instruments aboard the spacecraft. This article is aimed at constructing the microvibration transmission model of a large-scale CMG incorporating the ...
Jin You, Wei Zhu, Hao Wang
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Numerical Study of the Thermal Model on High Uniformity Temperature Test Platform
MATEC Web of Conferences, 2019 The surface temperature uniformity of a test platform with an effective test area of 600 mm × 600 mm was numerically studied. The conductive heat transfer model for the test platform and the device under test (DUT) installed on the surface was ...
Wang Zijuan +3 more
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Key Technical Fields and Future Outlooks of Space Manipulators: A Survey
SmartBot, EarlyView.This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen +12 more
wiley +1 more source
Spacecraft Assembly Process Bill of Material Construction Technology For Single-Piece Production
MATEC Web of Conferences, 2017 For the spacecraft assembly Process Bill of Material (PBOM) traditional construction technology, the product assembly relationship, product assembly information are not visual for spacecraft assembly and integration department, leading to the manual PBOM
He Wen-xing, Chen Chang-yu, Liu Yu-gang
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Design of drive control for digital transmission relay antenna based on FPGA miniaturization
Dianzi Jishu Yingyong, 2019 In order to meet the requirements of spacecraft miniaturization design, a single chip anti-fuse FPGA is used as main control chip for driving relay antenna.
Hou Chao +3 more
doaj +1 more source
On the Conditions of Aliasing Effects in Constellations with More than Four Spacecraft [PDF]
, 2020 L. Zhang +3 more
openalex +1 more source