Results 171 to 180 of about 464,025 (338)
In Situ Methanation on Mars: A Process Concept Study on the Impact of H2/CO2 and Recycle Ratio
Chemie Ingenieur Technik, EarlyView.The rocket propellant methane can be produced on Mars by in situ resource utilization. The H2/CO2 ratio is decisive, and excess H2 is favored for providing sufficient propellant purity. The operation mode—with or without recycling of unreacted reactants—depends on the resource availability of the selected landing site. Abstract For return missions from
Franz Braun +4 more
wiley +1 more source
Ice-Shelf Tidal Flexure and Subglacial Pressure Variations [PDF]
We develop a model of an ice shelf-ice stream system as a viscoelastic beam partially supported by an elastic foundation. When bed rock near the grounding line acts as a fulcrum, leverage from the ice shelf dropping at low tide can cause significant ...
Alley, Richard B. +5 more
core +1 more source
Sedimentary basins reduce stability of Antarctic ice streams through groundwater feedbacks
, 2022 Lu Li +3 more
openalex +2 more sources
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Advancements in biofuel production technologies are essential for reducing global dependence on fossil fuels and addressing their overexploitation. Many valuable components of biomass, such as cellulose, hemicellulose, and lignin, remain underused in traditional biorefineries, which typically rely on a single feedstock to produce a primary ...
Marcos Paulo Patta Granado +5 more
wiley +1 more source
Ice-stream demise dynamically conditioned by trough shape and bed strength. [PDF]
Sci Adv, 2019 Bradwell T +12 more
europepmc +1 more source
Cytoskeleton, EarlyView.ABSTRACT Cooperativity between cytoskeletal proteins is crucial for spatiotemporal coordination in biological processes, like oogenesis. In mammalian and Drosophila oogenesis, proper assembly and function of actin networks require coordination between actin assembly factors Spire and formins, as well as actin‐associated proteins like myosins and Rab ...
Joseph Y. Ong +7 more
wiley +1 more source
Dynamics of active subglacial lakes in Recovery Ice Stream. [PDF]
J Geophys Res Earth Surf, 2018 Dow CF +6 more
europepmc +1 more source
Photometric analysis of a space shuttle water venting [PDF]
Presented here is a preliminary interpretation of a recent experiment conducted on Space Shuttle Discovery (Mission STS 29) in which a stream of liquid supply water was vented into space at twilight.
Berk, A. +8 more
core +1 more source
Ross Ice Shelf Displacement and Elastic Plate Waves Induced by Whillans Ice Stream Slip Events [PDF]
Douglas A. Wiens +5 more
openalex +1 more source