Results 101 to 110 of about 5,954,141 (263)

The Stability of Manganese Oxides Under Laser Irradiation During Raman Analyses: II. Layer Structures

Journal of Raman Spectroscopy, EarlyView.
Manganese oxides are important geomaterials with diverse technological applications. Here, we investigate the behaviour of the most common Mn oxides with layer structures under irradiation by a 532‐nm laser, with intensity ranging from 23 µW/µm2 to 36.8 mW/µm2.
Simone Bernardini, Giancarlo Della Ventura, Luigi Jovane, Armida Sodo, Boriana Mihailova   +4 more
wiley   +1 more source

Space Economy and Sustainability: A Systematic Review

Sustainable Development, EarlyView.
ABSTRACT The space economy is booming thanks to the increasing investment of government agencies, private companies, and venture capitalists. From the beginning of the New Space era, the array of actors involved in the development of technologies for extra‐terrestrial activities has increased, as well as the downstream applications that foster ...
Marianna Valente, Federico Caviggioli, Lara Agostini   +2 more
wiley   +1 more source

Seasonal variability and cloud impacts in diffuse ratio, clearness index, and spectral characteristic of solar radiation in a temperate monsoon region

Ecological Research, EarlyView.
Seasonal change in wavelength ratio of incoming solar radiation reproduced by the model. Atmospheric water vapor pressure, air mass, and clearness index are used as model variables. Abstract Solar radiation (SR) dynamics significantly influence plant growth, development, and ecosystems, serving as a primary energy source and an essential environmental ...
Amila Nuwan Siriwardana, Atsushi Kume
wiley   +1 more source

Continuous Online Semantic Implicit Representation for Autonomous Ground Robot Navigation in Unstructured Environments

Robotics
While mobile ground robots have now the physical capacity of travelling in unstructured challenging environments such as extraterrestrial surfaces or devastated terrains, their safe and efficient autonomous navigation has yet to be improved before ...
Quentin Serdel, Julien Marzat, Julien Moras   +2 more
doaj   +1 more source

The artisanal underground: gold, subsistence, and subsurface materiality in Colombia

Journal of the Royal Anthropological Institute, EarlyView.
Abstract This article focuses on subsurface materiality to explore how small‐scale gold miners in Colombia navigate formal politics. In much critical research, the underground appears as a space of great developmentalist ambition, whose resources enable corporate expansion and bureaucratic rule.
Jesse Jonkman
wiley   +1 more source

Properties and Characteristics of Regolith-Based Materials for Extraterrestrial Construction

Engineering
The construction of extraterrestrial bases has become a new goal in the active exploration of deep space. Among the construction techniques, in situ resource-based construction is one of the most promising because of its good sustainability and ...
Cheng Zhou, Yuyue Gao, Yan Zhou, Wei She, Yusheng Shi, Lieyun Ding, Changwen Miao   +6 more
doaj  

Mining and/in outer space: Verticality, analogy, and infrastructural mediation in subarctic Sweden Les mines et/dans l'espace : verticalité, analogie et médiation infrastructurelle dans les régions subarctiques de Suède

Journal of the Royal Anthropological Institute, EarlyView.
Space activities in subarctic Sweden are predicated on older infrastructures of underground resource extraction. The ongoing expansion of the country's rocket launch site outside Kiruna relies on the Swedish state's historical construction of the region as a resource frontier.
Chakad Ojani
wiley   +1 more source

Infectious Diseases and the Use of Antimicrobials on Space Missions

Space: Science & Technology
Introduction: Exposure of the human body to the aerospace environment is capable of producing various physiological changes, which contributes to greater susceptibility of acquiring viral and/or bacterial infections.
Alice R. C. e Castro-Costa, Rodrigo Siqueira-Batista, Fabíola A. Alcântara, Thaís Russomano, Marlise A. Santos, Isadora de C. e Silva, Oswaldo M. Del Cima   +6 more
doaj   +1 more source

Extraterrestrial sink dynamics in granular matter [PDF]

arXiv, 2013
A loosely packed bed of sand sits precariously on the fence between mechanically stable and flowing states. This has especially strong implications for animals or vehicles needing to navigate sandy environments, which can sink and become stuck in a "dry quicksand" if their weight exceeds the yield stress of this fragile matter.
arxiv  

Cosmic dust fertilization of glacial prebiotic chemistry on early Earth [PDF]

Earth. Nat Astron (2024)
Earth's surface is deficient in available forms of many elements considered limiting for prebiotic chemistry. In contrast, many extraterrestrial rocky objects are rich in these same elements. Limiting prebiotic ingredients may, therefore, have been delivered by exogenous material; however, the mechanisms by which exogeneous material may be reliably and
arxiv   +1 more source