Results 121 to 130 of about 2,815 (307)

3D‐Printed Dual‐Doped Ag2Se‐Based Thermoelectric Films With Enhanced Thermal Stability

Advanced Materials Technologies, EarlyView.
Sb–Se dual doping enhances the thermal stability of Ag2Se‐based thermoelectric systems. The compositionally tuned nano‐ink is printed into flexible films by direct ink writing (DIW), retaining improved thermoelectric properties after annealing up to 400°C.
Ahasun Habib Hridoy, Nishat Paul, Naimul Arefin, Axel Lopez, Peiran Wei, Brandon Dumars, Yan Chen, Mortaza Saeidi, Minxiang Zeng   +8 more
wiley   +1 more source

Microsatellites Formation Flying for In-Situ Space Debris Detection [PDF]

, 2008
Since nineties, the GAUSS (Group of Astrodynamics of the ”Sapienza” University of Roma) has started UNISAT program with the aim to design, manufacture and launch University microsatellites, completely built and operated in orbit by students of the school
PIERGENTILI, FABRIZIO, C. Cappelletti, F. Santoni, F. Guarducci, F. Paolillo, F. Graziani, M. L. Battagliere, L. Ridolfi   +7 more
core  

A Single-Pass Multistatic SAR Satellites Formation Design Method for TomoSAR Data Acquisition

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar tomography (TomoSAR) enables 3-D SAR imaging. However, most spaceborne TomoSAR data are currently acquired through repeated passes of a single satellite, during which the atmospheric and deformation phases complicate processing ...
Sisi Dong, Weidong Yu, Jili Wang, Yulun Wu, Qiang Lin, Chunle Wang, Xiaoxue Jia   +6 more
doaj   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Minimal-Learning-Parameter Based Adaptive Neural Network With Fractional-Order Sliding Mode Control for Satellite Formation Flying

IEEE Access
This paper introduces a novel neural network adaptive fractional-order sliding mode control strategy based on the minimal learning parameter method (MLPNN-FOSMC).
Guogang Wang, Wankai Yuan, Xin Wang
doaj   +1 more source

Magnetic Micro‐ and Nanorobots for Precision Thrombolysis: Design Strategies and Translational Challenges

Advanced Robotics Research, EarlyView.
Micro‐ and nanorobots for targeted thrombolysis. This perspective elaborates on the clinical indication of blood clot disorders and current limitations for treatment. As a novel, alternative solution, micro‐ and nanorobots can be used to treat and break down thrombi.
Joshua M. Mesfin, Yimo Yan, Nikola Cesarovic, Simone Schuerle   +3 more
wiley   +1 more source

Intelligent Maintenance Review for Robots: Multimodal Information, Deep Diagnosis and Embodied Artificial Intelligence

Advanced Robotics Research, EarlyView.
This review maps the methods to monitor robots’ health by fusing vibration, sound, control signals, vision, force, and oil information with artificial intelligence. It identifies deep learning, transfer learning, digital twins, and physics‐informed models as key methodological pathways enabling earlier diagnosis, safer human–robot collaboration, and ...
Yuting Qiao, Hongbo Wang, Naipeng Li, Shuo Wang, Yaguo Lei, Tonghai Wu, Junyi Cao   +6 more
wiley   +1 more source

Fractionated satellites: a systems engineering analysis [PDF]

, 2014
The current method of operating space-based assets involves the design and launch of large, monolithic spacecraft. These spacecraft are not responsive to failures or changes in mission requirements, as both require the launch of a completely new ...
Schwarz, Benjamin Samuel
core  

Consensus Formation and Change are Enhanced by Neutrality

Advanced Science, EarlyView.
Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag, Janina A. Hoffmann, Tim Rogers, Christian A. Yates   +3 more
wiley   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source