Results 231 to 240 of about 51,843 (335)

Accurate geometric albedo, shape, and size of Hi'iaka from a stellar occultation. [PDF]

open access: yesNat Commun
Fernández-Valenzuela E   +73 more
europepmc   +1 more source

Worm‐Inspired Soft Robots With Modular Outfit‐Changing for Intelligent Multienvironment Adaptation

open access: yesAdvanced Intelligent Systems, EarlyView.
This study proposes a worm‐inspired soft robot capable of locomotion across multiple environments through a modular “outfit‐changing” strategy. The robot integrates pneumatically actuated peristaltic segments with interchangeable external modules, enabling efficient motion on ground surfaces, within pipelines, through granular media, and underwater ...
Xiaomin Liu   +6 more
wiley   +1 more source

Analysis of the Load Sharing of the Flexible Ring Gear Planetary Gear Train

open access: gold, 2019
Zhao Jian Yang   +3 more
openalex   +1 more source

NASA'S <i>Lucy</i> Mission to Trojan Asteroids: Unraveling the History of the Outer Solar System. [PDF]

open access: yesSpace Sci Rev
Levison HF   +5 more
europepmc   +1 more source

Causal analysis of trade loss from pathogens: A global study of foot and mouth disease impacts on meat exports

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Our general interest is in global trade loss from livestock pathogens, specifically exports. We adopt a causal inference approach that considers animal disease outbreaks over time as non‐staggered binary treatments with the potential for switching in (infection) and out of treatment (recovery) within the sample period. The outcome evolution of
Mohammad Maksudur Rahman   +1 more
wiley   +1 more source

Near-surface liquid water on Mars inferred from seasonal marsquakes. [PDF]

open access: yesNat Commun
Shi J   +12 more
europepmc   +1 more source

Prebiotic organic compounds in samples of asteroid Bennu indicate heterogeneous aqueous alteration. [PDF]

open access: yesProc Natl Acad Sci U S A
Mojarro A   +6 more
europepmc   +1 more source

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