Results 121 to 130 of about 114,089 (230)

Deep residual shrinkage network with multichannel VMD inputs for noise reduction of micro-thrust measurement

open access: yesAIP Advances
Micro-newton thrusters are widely utilized in the field of astronautics. Typically, the precision of micro-newton thrust measurement fundamentally depends on the background noise level.
Zhikang Liu   +3 more
doaj   +1 more source

Analysis of Three‐Stage Preheating Strategy and Heat Transfer Mechanism of Metal‐Supported Solid Oxide Electrolysis Cell System

open access: yesFuel Cells, Volume 26, Issue 2, April 2026.
ABSTRACT This study details the dynamic model of a metal‐supported solid oxide electrolysis cell (MS‐SOEC) system, which includes a metal‐supported stack, evaporator, heat exchanger, and associated heaters and blowers, forming an integrated electrolysis and thermal management unit.
Jenn‐Kun Kuo   +5 more
wiley   +1 more source

Analysis of Seasonal Dominant Factors Influencing Land Surface Temperature Over the Tibetan Plateau

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Land surface temperature (LST) is a crucial parameter that reflects the energy balance of the ground, playing a key role in characterizing the change of climate. LST on the Tibetan Plateau (TP) directly impacts local climate and environmental alterations.
Yuejie Zhang   +8 more
doaj   +1 more source

Pre‐Formation of LiF‐Rich Interfaces on Prelithiated Si/C Anodes for High‐Energy Lithium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Prelithiation is effective for compensating active lithium‐ion (Li+) loss in silicon (Si)‐based battery electrode materials. However, owing to the dynamic growth of the solid electrolyte interface (SEI), capacity fading remains the biggest challenge for the industrialization of Si electrodes.
Wen‐Jie He   +9 more
wiley   +1 more source

An Online Trajectory-Planning Guidance Method for Reentry Vehicles With Bézier Curve–Based Shaping Approach

open access: yesInternational Journal of Aerospace Engineering
To improve the real-time capability and adaptability of online trajectory-planning guidance for reentry vehicles, a guidance method based on a Bézier curve shaping approach is proposed.
Yudong Hu   +4 more
doaj   +1 more source

Multi‐Task Learning for Airport Surface Surveillance: A Review

open access: yesExpert Systems, Volume 43, Issue 4, April 2026.
ABSTRACT The rapid growth of air transportation has surpassed the capabilities of traditional airport surveillance methods, such as visual observation and auxiliary equipment (e.g., ADS‐B, MLAT, radar), which struggle to provide all‐area, all‐weather situation awareness.
Daoyong Fu   +6 more
wiley   +1 more source

Small-Object Detection in Remote Sensing Images With Super-Resolution Perception

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Small objects are widely distributed on remote sensing images (RSIs), and most of them are achieved by super-resolution (SR) reconstruction followed by detection.
Jiahang Liu   +4 more
doaj   +1 more source

Advocacy Coalitions and the Evolution of U.S. Space Policy: Private Companies, Competition, and Space Traffic Coordination

open access: yesPolitics &Policy, Volume 54, Issue 2, April 2026.
ABSTRACT This study employs advocacy coalition framework (ACF) theory to analyze debates over U.S. space policies designed to avoid dangerous collisions between objects in Earth orbit. For decades, the Department of Defense prioritized national security in its development of space traffic coordination (STC) systems like the Space Surveillance Network ...
Jeffrey S. Lantis
wiley   +1 more source

Research on the Dynamic Modeling of Rigid–Flexible Composite Spacecraft Under Fixed Constraints Based on the ANCF

open access: yesAerospace
Dynamically modeling the flexible characteristics of large-scale jointed composite spacecraft is challenging. In this study, a dynamic modeling method for rigid–flexible composite spacecraft is proposed based on the absolute nodal coordinate formulation (
Jiaqi Wu   +6 more
doaj   +1 more source

Experimental testing of tape springs folded in three dimensions

open access: yes, 2002
One of the main drivers in satellite design is the minimization of mass, in the attempt to reduce the large costs involved in the launch of the spacecraft.
Aglietti, G.S., Walker, S.J.I.
core  

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