Results 91 to 100 of about 1,325,145 (304)

Hybrid Additive Manufacturing of Highly Stretchable Bottlebrush Polymer Nanocomposites by Decoupled Extrusion and Photopatterning

Advanced Materials Technologies, EarlyView.
A Hybrid Direct Ink Writing–Digital Light Processing (HDD) strategy decouples material extrusion from shape definition, enabling high‐fidelity additive manufacturing of highly viscous, yield‐stress polymer nanocomposites. Excess ink acts as a removable, self‐supporting scaffold, allowing fabrication of unsupported and embedded complex architectures ...
Shahryar Ramezani Bajgiran, Emmanuel Oduro, Daniel A. Rau, Li‐Heng Cai   +3 more
wiley   +1 more source

Experimental Investigation of Enhanced Bearing Capacity Due to Vibration on Loose Soils Under Low-Atmospheric-Pressure Conditions

Geotechnics
Legged rovers are gaining interest for planetary exploration due to their high mobility. However, loose regolith on celestial surfaces like the Moon and Mars often leads to slippage as legs disturb the soil.
Tomohiro Watanabe, Ryoma Higashiyama, Kojiro Iizuka   +2 more
doaj   +1 more source

Model Predictive Traction and Steering Control of Planetary Rovers [PDF]

, 2013
Results of the ESA project RobMPC (Robust Model Predictive Control for Space Constraint Systems) could successfully demonstrate that model predictive control (MPC) is definitively applicable for space systems with high dynamics like wheeled vehicles ...
Krenn, R., Bemporad, Alberto, Krenn, Rainer, Gibbesch, A., Gibbesch, Andreas, Bemporad, A, Binet, Giovanni, Bemporad, A., Binet, G.   +8 more
core  

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

Experimental Investigation of the Relationship Between Vibration Acceleration and Bearing Capacity for Space Exploration Legged Rovers

Geotechnics
In the exploration missions for Mars and the Moon, rovers with legs as mobility mechanisms are necessitated owing to their high mobility. However, the surface of Mars and the Moon is loose, leading the rovers to slip by virtue of the ground easily ...
Tomohiro Watanabe, Yutaka Fukura, Kazuhiko Hiramoto, Kojiro Iizuka   +3 more
doaj   +1 more source

The scientific case for renewed human activities on the Moon [PDF]

, 2004
It is over 30 years since the last human being stood on the lunar surface and this long hiatus in human exploration has been to the detriment of lunar and planetary science. The primary scientific importance of the Moon lies in the record it preserves of
Crawford, Ian
core   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Innovative Remote Spectroscopic Techniques For Planetary Exploration [PDF]

, 2020
This dissertation describes research involving three basic aspects of planetary missions using spectroscopic techniques for planetary exploration, namely instrumentation development, scientific qualification of instrumentation, and prioritization of data
Sandford, Macey
core   +1 more source

Shape Reconstruction and Rotation Axis Estimation of Small Bodies Based on Structure-from-Motion [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Shape reconstruction and rotation axis estimation of small bodies essential for both engineering applications and scientific investigations. This paper presents a Structure-from-Motion-based (SFM) method for small body shape reconstruction and rotation ...
H. Xie, Y. Wang, X. Yan, M. Yang, Y. Wang, X. Tong   +5 more
doaj   +1 more source

Robots and Humans in Planetary Exploration: Working Together?

, 2002
Today's approach to human-robotic cooperation in planetary exploration focuses on using robotic probes as precursors to human exploration. A large portion of current NASA planetary surface exploration is focussed on Mars, and robotic probes are seen as ...
Lyons, Valerie, Landis, Geoffrey A.
core