Results 41 to 50 of about 11,524 (239)

Comparative Analysis of Diurnal Thermal Radiation Variation among Lunar Craters of Different Ages Using CE-2 MRM Data

open access: yesRemote Sensing, 2023
Microwave radiometer (MRM) is one of the important payloads on the Chang’e-2 (CE-2) Lunar satellite. In the Chang’e satellite’s observation of the microwave radiation brightness temperature (TB) on the lunar surface, there are some “cold spots” of ...
Lianghai Wu   +4 more
doaj   +1 more source

A 3D‐Printed SFE‐Graded Alloy Mitigates Cryogenic Discontinuous Plastic Flow and Hydrogen Embrittlement

open access: yesAdvanced Science, EarlyView.
A novel strategy features gradient composition and stacking fault energy‐tuned (CoCrMn)100‐2xFexNix fabricated via in situ alloying additive manufacturing. This design circumvents cryogenic discontinuous plastic flow and hydrogen embrittlement of metallic materials under quasi‐static loading and hydrogen‐rich environment relevant to lunar polar ...
Renhao Wu   +11 more
wiley   +1 more source

Dynamic Secondary Illumination in Permanent Shadows within Artemis III Candidate Landing Regions

open access: yesThe Planetary Science Journal
Investigations that can be conducted at the Artemis III candidate landing regions will benefit from the knowledge of the thermal environment within permanently shadowed regions (PSRs). Within PSRs, secondary illumination controls the surface temperature,
Prasun Mahanti   +7 more
doaj   +1 more source

Review and Revision of the Lunar Cratering Chronology—Lunar Timescale Part 2

open access: yesThe Planetary Science Journal, 2023
Times and rates of planetary surface-modifying processes are crucial for the sequence and correlation of events on planetary bodies. For most planetary surfaces, superposition principles and crater densities are commonly used methods to collect relative ...
Stephanie C. Werner   +2 more
doaj   +1 more source

Morphological and morphometric aspects of the equine aortic valve: New insights for comparative studies in mammals

open access: yesThe Anatomical Record, EarlyView.
Abstract New data on the equine aortic valve obtained using advanced techniques is especially important given the greater availability of animal models for translational research. Here we characterized the morphological and morphometric aspects of the equine aortic valve from 60 healthy hearts collected at equine abattoirs.
Vitor Pires Pereira   +3 more
wiley   +1 more source

LROC-derived 1 m Resolution Digital Elevation Model and Regolith Temperature Simulation of Banting Crater

open access: yesThe Astronomical Journal
The regolith temperature of the Moon is strongly influenced by direct solar radiation and multiple-scattered thermal radiation from the surrounding terrains.
Zhen Yang   +4 more
doaj   +1 more source

The Lunar Surface Gravimeter as a Lunar Seismograph [PDF]

open access: yes, 2008
Introduction: The primary objective for the Lunar Surface Gravimeter (LSG) on Apollo 17 was to search for gravitational waves, but it failed in detecting them [1]. When the instrument was deployed on the Moon, the sensor beam could not be balanced in the proper equilibrium position. Consequently, the LSG was not able to function as originally designed.
Kawamura, T.   +5 more
openaire  

Morpho‐functional analyses of the jaw apparatus in the Blue‐and‐yellow Macaw (Ara ararauna, Psittaciformes, Aves): Adaptations to feeding behavior

open access: yesThe Anatomical Record, EarlyView.
Abstract Macaws are renowned for processing dry, mechanically resistant fruits, yet the species‐level anatomical and functional correlates of this performance remain incompletely resolved. We examined the feeding apparatus of the Blue‐and‐yellow Macaw (Ara ararauna) using an integrated approach that combines osteology, myology, and bite‐force estimates
Sérgio R. Posso   +2 more
wiley   +1 more source

Global Megaregolith Structure on the Moon from Gravity and Topography Data

open access: yesThe Astrophysical Journal
The megaregolith is a thick, highly fractured layer and plays a fundamental role in the Moon’s geological and thermal evolution. However, existing estimates of its thickness remain spatially discontinuous and lack global consistency.
Wensong Zhang   +7 more
doaj   +1 more source

The Strategic Role of Sustainability Certifications: A Multi‐Theoretical Framework and Comparative Analysis in the Global Wine Industry

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Sustainability certifications are increasingly embedded in the governance and competitiveness of the wine sector, yet their strategic role remains under‐theorised. This study conceptualises certifications as multidimensional strategic mechanisms and conducts a comparative analysis of 50 schemes used in the global wine industry.
Alexy Apolo‐Romero   +2 more
wiley   +1 more source

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