Results 121 to 130 of about 1,041,341 (336)

Depth-to-diameter Ratios of Fresh Craters on the Moon and Implications for Surface Age Estimates

open access: yesThe Planetary Science Journal
The depth-to-diameter ( d / D ) ratios of small lunar craters ( D < 400 m) can be used to determine important properties of the upper regolith, specifically material strength or thickness. The d / D is also an important component of topographic diffusion
Rachael H. Hoover   +3 more
doaj   +1 more source

Toward Knowledge‐Guided AI for Inverse Design in Manufacturing: A Perspective on Domain, Physics, and Human–AI Synergy

open access: yesAdvanced Intelligent Discovery, EarlyView.
This perspective highlights how knowledge‐guided artificial intelligence can address key challenges in manufacturing inverse design, including high‐dimensional search spaces, limited data, and process constraints. It focused on three complementary pillars—expert‐guided problem definition, physics‐informed machine learning, and large language model ...
Hugon Lee   +3 more
wiley   +1 more source

Composition and Provenance of the Chang′e-6 Lunar Samples: Insights from the Simulation of the Impact Gardening Process

open access: yesThe Astrophysical Journal Letters
In 2024 June, China’s Chang′e-6 (CE-6) mission successfully returned 1935.3 grams of samples from the lunar farside for the first time. The origin and composition of the unique samples could offer valuable insights into fundamental questions on the Moon ...
Yanze Su   +3 more
doaj   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

open access: yesAdvanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame   +4 more
wiley   +1 more source

A Global Survey of Lunar Surface Thorium Anomalies Associated with Impact Basins

open access: yesThe Planetary Science Journal
Radionuclides (e.g., thorium, uranium, and potassium) are the major sources of the Moon’s endogenic heat. While their surface occurrence can be mapped from orbit by gamma-ray spectrometry, knowledge of their subsurface distribution is crucial in further ...
S. Nagihara
doaj   +1 more source

Custom Shape Formation in Continuum Robots Using Compliant Bistable Segments for Medical Applications

open access: yesAdvanced Intelligent Systems, EarlyView.
This article describes the integration of compliant bi‐stability in continuum robots. This integration leads to two variants of compliant bistable mechanism (CBM) integrated continuum robot segments, extending and locking. Results show that when used together, these CBM‐integrated segments allow the continuum robot to form custom shapes.
Muhammad Umer Khan Niazi   +4 more
wiley   +1 more source

Improved Orthorectification and Empirical Reduction of Topographic Effects in Monostatic Mini-RF S-band Observations of the Moon

open access: yesThe Planetary Science Journal
The Miniature Radio Frequency instrument (Mini-RF) on the Lunar Reconnaissance Orbiter obtained widespread synthetic aperture radar observations of the Moon in the S band (12.6 cm), including nearly complete coverage at both lunar poles.
Caleb I. Fassett   +11 more
doaj   +1 more source

Fotos da Lua pelo Mundo: um projeto observacional registrado em fotografia sobre como as fases da Lua se comparam quando observadas dos Hemisférios Norte e Sul

open access: yesRevista Brasileira de Ensino de Física
Resumo A Lua traz muita curiosidade para os habitantes da Terra. Diversos mitos e crendices associados ao movimento do astro figuram no imaginário popular, conferindo-lhe um papel que beira o místico e o sobrenatural.
Daniel Neves Micha
doaj   +1 more source

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