Toward Sustainable Lunar Construction: Optimization of Composite Alkali Activators for Nano-SiO<sub>2</sub>-Modified Simulated Lunar Soil-Based Geopolymer with Macro- and Microstructural Characterization. [PDF]
Wang Z, Li L, Li F.
europepmc +1 more source
First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley +1 more source
Progress and Bottlenecks in Large-Scale Commercial Space Transportation Systems. [PDF]
Wang X, Song Z, Bao W.
europepmc +1 more source
Image Encoding With Blipped Gradients in an Echo Train
ABSTRACT Purpose An MRI scanner was designed and built to encode k‐space points in the spin echoes occurring between 180∘ pulses in an echo train by using blipped B0 gradient pulses applied just prior to those spin echoes. Methods The proposed MRI scanner is a modification of an original design that used TRansmit Array Spatial Encoding (TRASE), a built‐
Logi Vidarsson, Gordon E. Sarty
wiley +1 more source
A chip-level MEMS short-period seismometer for distributed planetary seismic networks. [PDF]
Wei X +7 more
europepmc +1 more source
ABSTRACT The EAC‐1A lunar mare simulant, a silty sand, was selected by the European Astronaut Center (EAC) for use in the LUNA analogue facility's lunar simulation testbed. Its stress‐ and strain‐dependent shear modulus and damping ratio were determined via resonant column testing on specimens prepared either from ambient moisture material or oven ...
Christos Vrettos
wiley +1 more source
Magmatic origin of the Dewar magnetic anomaly: Implications for an early lunar dynamo. [PDF]
Yang X +3 more
europepmc +1 more source
Tectonics on Early Earth Driven by Earth's Changing Shape During Tidal Recession of the Moon
Abstract Few fragments of Earth's earliest crust have survived, and so this formative period of our planet's history is shrouded in mystery. To leverage the limited data available, it is important to understand all the processes that could have shaped our young planet.
S. J. Lock
wiley +1 more source
Integrating resource utilization and bioregenerative life support systems for sustainable space exploration. [PDF]
Esposito M +10 more
europepmc +1 more source
Sulfidation Reaction Mechanisms of Olivine and Diopside at Mercury's Reducing Conditions
Abstract The surface of Mercury contains elevated amounts of sulfur of up to 4 wt.%. Volcanic degassing of S from the interior of the planet could have initiated sulfidation reactions between the degassed S and surface materials in the planet's past, leading to the observed surface S enrichment.
Rody C. Erftemeijer +2 more
wiley +1 more source

