Results 161 to 170 of about 21,305 (311)

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

Advanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday, Irena Zubak, Andreas Raabe, Josie Hughes   +3 more
wiley   +1 more source

Electric Solar Wind Sail Propulsion System Development

, 2011
The electric solar wind sail (E-sail) was invented in 2006 and has thereafter been developed rapidly. This paper is a progress report of E-sail technical development as it stands in August 2011.
Lebreton J., Ukkonen J., Thornell G., Koivisto H., Pergola P., Tarvainen O., Janhunen P., Kauppinen J., Kvell U., Noorma M., Voormansik K., Haeggstrom E., Polkko J., Kurppa R., Latt S., Toivanen P., Giusti N., MARCUCCIO, SALVO, Johansson H., Aliasi G., Merikallio S., Kratz H., Rangsten P., MENGALI, GIOVANNI, Vinterhav E., Kiprich S., Allik V., Kromer O., Hallikainen M., Envall J., Kalvas T., Ylitalo T., Sundqvist J., Gronland T., Seppanen H., Rosta R., Salminen P., QUARTA, ALESSANDRO ANTONIO, Praks J.   +38 more
core  

Learning Highly Dynamic Skills Transition for Quadruped Jumping Through Constrained Space

Advanced Robotics Research, EarlyView.
A quadruped robot masters dynamic jumps through constrained spaces with animal‐inspired moves and intelligent vision control. This hierarchical learning approach combines imitation of biological agility with real‐time trajectory planning. Although legged animals are capable of performing explosive motions while traversing confined spaces, replicating ...
Zeren Luo, Jiahui Zhang, Yimin Han, Ji Ma, Minghao Lu, Ioannis Havoutis, Peng Lu   +6 more
wiley   +1 more source

Numerical Analysis and Modelling of Transmission Systems for Hybrid Electric Vehicles and Electric Vehicles

Interest in hybrid electric vehicles (HEVs) and electric vehicles (EVs) has increased rapidly over recent years from both industrial and academic viewpoints due to increasing concerns about environmental pollution and global oil usage.
Ren, Qinglian
core  

Arcjet Propulsion System Study for NSSK

, 1993
The study of a low power arcjet propulsion system and its application to north-south .station keeping of geostationary telecommunication satellites was carried out at Centrospazio in the framework of the arcjet propulsion system development program ...
ANDRENUCCI, MARIANO, D'AGOSTINO, LUCA, D'AURIA F, SCORTECCI F   +3 more
core  

Solar and Hybrid Electric Propulsion to the Kuiper Belt and Beyond [PDF]

Bulletin of the AAS, 2021
Edgar A Bering, Alex Parker, Matthew Giambusso, Mark Carter, Jared Squire, Franklin Chang Díaz, Sarah M. Hörst   +6 more
openaire   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Stable Imitation of Multigait and Bipedal Motions for Quadrupedal Robots Over Uneven Terrains

Advanced Robotics Research, EarlyView.
How are quadrupedal robots empowered to execute complex navigation tasks, including multigait and bipedal motions? Challenges in stability and real‐world adaptation persist, especially with uneven terrains and disturbances. This article presents an imitation learning framework that enhances adaptability and robustness by incorporating long short‐term ...
Erdong Xiao, Yinzhao Dong, Ji Ma, Peng Lu   +3 more
wiley   +1 more source

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source