Results 81 to 90 of about 6,136,424 (429)
Proposals for Space Flight [PDF]
Nature, 1960 The Exploration of the Solar System By Felix Godwin. Pp. 200 + 10 plates. (London: Chapman and Hall, Ltd., 1960.) 35s. net.
openaire +2 more sources
Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites
Advanced Engineering Materials, EarlyView.The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld +9 more
wiley +1 more source
Performance Characterization of Heliotrope Solar Hot-Air Balloons during Multihour Stratospheric Flights [PDF]
Heliotropes are passive solar hot air balloons that are capable of achieving nearly level flight within the lower stratosphere for several hours. These inexpensive flight platforms enable stratospheric sensing with high-cadence enabled by the low cost to manufacture, but their performance has not yet been assessed systematically.
arxiv +1 more source
The Effects of Space Weather on Flight Delays [PDF]
arXiv, 2022 Although the sun is really far away from us, some solar activities could still influence the performance and reliability of space-borne and ground-based technological systems on Earth. Those time-varying conditions in space caused by the sun are also called space weather, as the atmospheric conditions that can affect weather on the ground.
arxiv
Advanced Engineering Materials, EarlyView.Using novel probe‐based metrics, this study evaluates lattice structures on criteria critical to cellular solid optimization. Triply‐periodic minimal surface (TPMS) lattices outperform other lattices, offering more predictable mechanical behavior in complex design spaces and, as a result, higher performance in optimized models.
Firas Breish +2 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView., 2023 This review discusses the use of Surface‐Enhanced Raman Spectroscopy (SERS) combined with Artificial Intelligence (AI) for detecting antimicrobial resistance (AMR). Various SERS studies used with AI techniques, including machine learning and deep learning, are analyzed for their advantages and limitations.
Zakarya Al‐Shaebi +4 more
wiley +1 more source
Ocean Temperature Profiling Lidar: Analysis of Technology and Potential for Rapid Ocean Observations
Remote SensingDevelopment of ocean measurement technologies can improve monitoring of the global Ocean Heat Content (OHC) and Heat Storage Rate (HSR) that serve as early-warning indices for climate-critical circulation processes such as the Atlantic Meridional ...
John R. Moisan +4 more
doaj +1 more source
Tropospheric ozone variability in the tropics from ENSO to MJO and shorter timescales [PDF]
Atmospheric Chemistry and Physics, 2015 Aura OMI and MLS measurements are combined to produce daily maps of tropospheric ozone beginning October 2004. We show that El Niño-Southern Oscillation (ENSO) related inter-annual change in tropospheric ozone in the tropics is small in relation to ...
J. R. Ziemke +4 more
doaj +1 more source
Hard-X-Ray Optics Development at Marshall Space Flight Center [PDF]
arXiv, 2004 This paper summarizes the current status of the development of hard-X-ray optics using nickel replication at NASA's Marshall Space Flight Center.
arxiv