Results 61 to 70 of about 5,086,418 (244)

Advances and applications of spatio-temporal intelligence in China’s lunar and Mars explorations

Geo-spatial Information Science
Spatio-temporal intelligence (STI) technologies provide indispensable spatio-temporal information support across all phases of deep space exploration missions, serving as core enabling technologies to ensure mission safety and scientific output.
Kaichang Di, Zhaoqin Liu, Bin Liu, Man Peng, Wenhui Wan, Yexin Wang, Wai Chung Liu, Sheng Gou, Zongyu Yue   +8 more
doaj   +1 more source

TLOF final approach methodology proposal utilizing dual landing pads

IET Intelligent Transport Systems, 2023
Vertiports in economically developed areas present the operation mode of multiple Touchdown and Liftoff Area (TLOF) pads, and the intersection and overlap of the final approach airspace between two adjacent TOLF pads in the vertiports is the basic ...
Yu Lei, Rui Qin, Quan Li, Daliang Chen
doaj   +1 more source

Conductive Tin Oxide Under the Thermal Budget of Perovskite/TOPCon Tandems: Toward Indium‐Free Contacts

Advanced Materials Technologies, EarlyView.
This work demonstrates that achieving conductive undoped SnOx contacts required careful tailoring of oxygen vacancy (VO) tuning and defect engineering. Controlling oxygen deposition pressure and low‐temperature annealing (300°C) optimizes defect stoichiometry and mitigates carrier scattering. This low thermal budget approach significantly enhances Hall
Paul Llontop, Mario Hanser, Matthew Wright, Soumyajit Maitra, Eloy J. Marcelis, Jana‐Isabelle Polzin, Martin Bivour, David C. Grinter, Pilar Ferrer, Iris C. G. van den Bosch, Christoph Baeumer, Ruy S. Bonilla, Armin Richter, Monica Morales‐Masis   +13 more
wiley   +1 more source

Lunar-VISE Landing Site Selection and Characterization at Mons Gruithuisen Gamma

The Planetary Science Journal
The Lunar Vulkan Imaging and Spectroscopy Explorer (Lunar-VISE) was selected for a Commercial Lunar Payload Services (CLPS) delivery to the Gruithuisen domes region of the Moon as part of NASA’s Payloads and Research Investigation on the Surface of the ...
Jean-Pierre Williams, Margaret E. Landis, Kristen A. Bennett, Sarah Valencia, Kerri L. Donaldson Hanna, Adrienne Dove, Patrick O’Brien, Erwan Mazarico, Javier Benavente, Brett W. Denevi, Justin Hagerty, Craig Hardgrove, Paul O. Hayne, Lena Heffern, Adam LaMee, Thomas H. Prettyman, Katherine A. Shirley, Matthew A. Siegler, Jessica M. Sunshine, John S. Karcz, Maria E. Banks   +20 more
doaj   +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

Autonomous Approach and Landing Algorithms for Unmanned Aerial Vehicles [PDF]

, 2011
In recent years, several research activities have been developed in order to increase the autonomy features in Unmanned Aerial Vehicles (UAVs), to substitute human pilots in dangerous missions or simply in order to execute specific tasks more efficiently
De Lellis, Ettore
core   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Fully Automatic Landing Site Selection by a UAV in an Unknown Environment

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Uncrewed aerial vehicles (UAVs) are widely deployed due to their low cost, autonomy, flexibility, and ability to operate in hard-to-reach areas. However, autonomous landing in unknown environments in the presence of hazards such as water or rough terrain
Salim Iratni, Moussa Diaf
doaj   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Safety-Prioritized Optimization of Asteroid Sample Site Selection Using Genetic Algorithm and Variable Neighborhood Tabu Search

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Sample site selection is crucial for asteroid sample return missions, requiring a strategy that considers factors such as terrain and illumination for mission safety.
Huan Xie, Jie Chen, Xiongfeng Yan, Yifan Wang, Yaqiong Wang, Qingfan Zhang, Yuanting Xi, Jun Xie, Ming Yang, Yongjiu Feng, Yusheng Xu, Xiaohua Tong   +11 more
doaj   +1 more source