Results 101 to 110 of about 82,732 (298)

A Lunar Electromagnetic Launch System for In-Situ Resource Utilization

, 2010
Future human exploration of the moon will require the development of capabilities for in-situ resource utilization (ISRU). Transport of lunar-derived commodities such as fuel and oxygen to orbiting resource depots has been proposed to enable refueling ...
Kuznetsov, Steven B., Wright, Michael R., Kloesel, Kurt J.   +2 more
core  

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Debreu?s Coefficient of Resource Utilization, the Solow Residual, and TFP: The Connection by Leontief Preferences [PDF]

Debreu?s coefficient of resource allocation is freed from individual data requirements. The procedure is shown to be equivalent to the imposition of Leontief preferences.
Thijs ten Raa
core  

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Mars In-Situ Resource Utilization Technology Evaluation

, 2011
We have examined the technologies required to enable Mars Tn-Situ Resource Utilization (ISRU) because our understanding of Mars resources has changed significantly in the last five years as a result of recent robotic missions to the red planet [1-4]. Two
Santiago-Maldonado, Edgardo, Muscatello, Anthony, Santago-Maldonado, Edgardo, Muscatello, Anthony C.   +3 more
core  

Resolving the Structural Duality of Graphene Grain Boundaries

Advanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo, Emiliano Ventura‐Macías, Mariano D. Jiménez‐Sánchez, Nicoleta Nicoara, Pierre Mallet, Jean‐Yves Veuillen, Vincent T. Renard, Antonio J. Martínez‐Galera, Pablo Pou, Julio Gómez‐Herrero, Rubén Pérez, Iván Brihuega   +11 more
wiley   +1 more source

The potential of far-red light-acclimating cyanobacteria to support sustainable outposts on Mars

Frontiers in Astronomy and Space Sciences
BackgroundLong-duration crewed missions on the Moon and Mars rely on support technologies based on locally available resources. Rock-weathering cyanobacteria are key enablers to transform minerals, carbon dioxide and urine (from crew waste) into biomass ...
Isabel Santos de Sousa, Isabel Santos de Sousa, Isabel Santos de Sousa, Giorgia Di Stefano, Giorgia Di Stefano, Andrea D’Agostino, Andrea D’Agostino, Costanza Maria Martella, Costanza Maria Martella, Antonio Chirico, Antonio Chirico, Gabriele Rigano, Gabriele Rigano, Loredana Santo, Loredana Santo, Daniela Billi, Daniela Billi   +16 more
doaj   +1 more source

In Situ Resource Utilization and Space Mining

, 2017
In Situ Resource Utilization (ISRU) and Space mining are concepts developed by science fiction writers a while ago. However, only now technologies reach maturation level where ISRU and Space mining could actually be feasible.
Zacny, Kris
core  

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

Advanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil, Celia Castillo‐Blas, Dawid Krystian Feler, Isabel Gómez‐Recio, Miguel Tinoco, Ana Querejeta‐Fernández, Rodrigo González‐Prieto, Felipe Gándara, Romualdo Santos Silva Jr, Pilar Ferrer, Carlos Prieto, Luc Lajaunie, José Luis Martinez‐Peña, María Luisa Ruiz‐González, José María González‐Calbet   +14 more
wiley   +1 more source

Bio-Inspired Strategies Are Adaptable to Sensors Manufactured on the Moon

Biomimetics
Bio-inspired strategies for robotic sensing are essential for in situ manufactured sensors on the Moon. Sensors are one crucial component of robots that should be manufactured from lunar resources to industrialize the Moon at low cost.
Alex Ellery
doaj   +1 more source