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Space: Science & Technology
Scopus
ISSN 2692-7659 · American Association for the Advancement of Science (AAAS) · 346 artikel di indeks
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Artikel Jurnal
Dynamic Modeling of a Net-Membrane Capture System with Combined Deformation for Space Debris Removal
The rapid increase in space debris occupies valuable orbital resources and poses an important threat to spacecraft safety. Active debris removal technology is currently the most effective method to mitigate the growth of space debris. This paper presents a novel active debris removal approach using…
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Analysis of Parameters on the Phase Distribution of Debris Clouds in Hypervelocity Impacts
The phase distribution is a crucial aspect of the debris cloud’s characteristics. Solid-phase fragments maintain material strength and demonstrate superior penetration capabilities, whereas liquid- and gas-phase debris exhibit reduced penetration efficiency but still impose momentum and thermal…
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Artikel Jurnal
Satellite Attitude Anomaly Detection in Ground Data Processing
In Earth observing satellite data processing, geometric image processing is the first and foremost step in generating accurate data products. The satellite’s attitude plays a crucial role in acquiring planned images, and any anomaly in attitude computation can lead to targeting inaccuracies and…
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Artikel Jurnal
Frequency-Sweeping Interferometry for Intersatellite Baseline Metrology in Array Telescope Formation
Space-based distributed array telescope formations hold substantial potential for deep space exploration, with their performance highly dependent on precise baseline measurements between subtelescopes. This study presents a double-sideband frequency-sweeping interferometry (DSB-FSI) technique based…
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Space Radiation Sparks Hidden Cancer Risks: The Bystander Effect Unveiled
High-energy space radiation poses a substantial carcinogenic risk to astronauts during deep space missions. However, the mechanistic basis for this risk remains poorly defined. This study uncovers a novel oxidative stress (OS)-driven mechanism by which low-dose 56Fe-ion exposure induces tumorigenic…
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Artikel Jurnal
Absolute Navigation of High-Altitude and High-Speed Vehicles Using Relative Position Vector Measurements
Recent studies over the past few decades have indicated the utility of utilizing relative position vector information for the absolute navigation of carriers within the aerospace domain. Drawing inspiration from the principles of spacecraft formation navigation utilizing relative position vector…
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Artikel Jurnal
Research on an Attitude Controllable Radar Image Generation Method for Noncooperative Targets
The generation of radar images of noncooperative targets has always been a hot topic and difficulty in this field. Although the existing methods based on generative adversarial networks can solve the problem of insufficient number of radar images of noncooperative targets, they lack precise control…
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Protection Assessment Method for Advanced Whipple Shield Based on Hazardous Fragments
A Whipple shield is a dual-plate structure commonly used to protect spacecraft from space debris impacts. Upon impact, the debris strikes the outer plate, breaking into a cloud of smaller fragments with dispersed energy and momentum, reducing the likelihood of penetration through the bulkhead…
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Artikel Jurnal
Observing Apophis’s 2029 Flyby from Earth–Moon L2 with LUMIO
(99942) Apophis will flyby the Earth on 2029 April 13 at an unprecedented close distance. This will be a unique opportunity to study a potentially hazardous asteroid (PHA) during a close encounter with our planet. This analysis assesses whether the Lunar Meteoroid Impact Observer (LUMIO), an ESA…
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Artikel Jurnal
Coupling between Carotid Hemodynamics and Cerebral Blood Flow During Early Simulated Microgravity
Spaceflight microgravity induces complex cerebral blood flow (CBF) alterations, which may threaten neurological health including cognitive impairment and sensorimotor disturbances of astronauts. How CBF is regulated during microgravity, especially its coupling with carotid hemodynamics, remains…
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Artikel Jurnal
Rapid Optimization of Hovering Point for Integrated Mission of Asteroid Hovering and Landing
An asteroid landing mission usually includes 2 stages: the observation stage at a hovering point and the landing stage starting from the hovering point. To reduce the total fuel consumption of the 2-stage integrated mission, a rapid optimization method for the hovering point is developed. The…
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Artikel Jurnal
Study on Long-Wave Resonance in High-Power Electric Propulsion Utilizing Ion Cyclotron Resonance Heating
High-power electric propulsion is expected to become the primary propulsion system in the deep space exploration due to its advantages of high specific impulse, increasing the payload ratio and reducing the flight time. Ion cyclotron resonance energization is an important method to improve specific…
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Artikel Jurnal
Robust Leader-Following Consensus Control of Multiple Nonholonomic Lunar Wheeled Robot Systems with Disturbances and Time-Varying Input Delays
To tackle the leader-following consensus tracking problem in multiple nonholonomic lunar wheeled robot systems under disturbances and time-varying input delays, a robust control strategy composed of 3 key components is developed in this paper. First, distributed state and input observers are…
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Artikel Jurnal
Space-Based Fabrication of ZBLAN Optical Fibers: A Breakthrough in Microgravity Manufacturing
ZBLAN, a heavy-metal fluoride glass fiber, achieves demonstrably better transmission in the mid-infrared range compared to silica fibers and is predicted to outperform their optical performance across the ultraviolet to mid-infrared spectrum; however, achieving this potential is hindered by…
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Artikel Jurnal
Pre-rerouting Strategy to Ensure Business Continuity for Low-Earth-Orbit Satellite Network
In a satellite network, due to the relative movement between satellites in different orbits or different layers, the intersatellite link changes dynamically. These changes are further classified into 2 main groups: some of them are predictable, such as link interruptions caused by changes in the…
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Artikel Jurnal
Spacecraft Proximity Operation Model-Based Sequential Coalitional Observation Game Strategy Design
To infer the mission status and threat level of noncooperative targets by obtaining their multiazimuth payload information, this paper is the first to study the problem of the spacecraft proximity operation model-based combination observation strategy design via the sequential coalitional game…
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Artikel Jurnal
Fault Diagnosis Framework for Space TWTAs by Combining the Knowledge Graph and Large Language Model
The statistical data of space traveling-wave tube amplifier (TWTA) fault events record fault symptoms, causes, and solutions in the form of text. Effectively mining such text data can potentially enhance the reliability of devices. In this study, a fault diagnosis framework for space TWTAs is…
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Artikel Jurnal
Hierarchical Motion Planning Method for Space Redundant Manipulators with End-Task Constraint
This paper proposes a hierarchical motion planning method integrating goal-biased rapidly exploring random tree (GB-RRT) and sequential convex programming (SCP) for a class of space redundant manipulators (SRM) utilizing an end hand–eye camera to perform visual monitoring tasks. By analyzing the…
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Artikel Jurnal
An Error-State Kalman Filter with Multibody Integrator for State Estimation of Flexible Cable-Net Systems
The advancement of arresting cable-net recovery technology is expected to promote the application of heavy-lift reusable launch vehicles in low-cost and high-frequency space exploration. However, this process faces challenges such as insufficient or indirect measurement in complex noisy…
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Artikel Jurnal
Preliminary Hot-Fire Test of Ammonium Dinitramide-Based Thrusters Based on Electrical Ignition
Space sustainability and green space activities are advanced space propulsion concepts developed in the 21st century. Ammonium dinitramide (ADN)-based liquid space thrusters are typical representatives of high-performance green propulsion. To overcome the technical defects of catalytic ignition, an…