Results 61 to 70 of about 902,982 (178)
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos +8 more
wiley +1 more source
Personalized nutrition is driven by scientific and technological advances such as nutrigenomics and microbiome analysis, as emphasized in this study. With regard to ethical concerns such as privacy protection and access, we balance the consequences of these developments for greater metabolic gains.
Muhammad Tayyab Arshad +7 more
wiley +1 more source
Robotic path planning for non-destructive testing of complex shaped surfaces [PDF]
The requirement to increase inspection speeds for non-destructive testing (NDT) of composite aerospace parts is common to many manufacturers. The prevalence of complex curved surfaces in the industry provides significant motivation for the use of 6 axis ...
Cooper, Ian +3 more
core
PseudospectralNet: Toward Hybrid Atmospheric Models for Climate Simulations
Abstract Recent machine learning (ML) models have shown great success for weather prediction tasks, suggesting that atmospheric dynamics can in principle be learned from data. However, such approaches suffer from instability or drift in long integrations and are hence usually not suited for climate simulations. Incorporating physical knowledge promises
Maximilian Gelbrecht +2 more
wiley +1 more source
Explorer-II: Wireless Self-Powered Visual and NDE Robotic Inspection System for Live Gas Distribution Mains [PDF]
Carnegie Mellon University (CMU) under contract from Department of Energy/National Energy Technology Laboratory (DoE/NETL) and co-funding from the Northeast Gas Association (NGA), has completed the overall system design, field-trial and Magnetic Flux Leakage (MFL) sensor evaluation program for the next-generation Explorer-II (X-II) live gas main Non ...
openaire +2 more sources
Automated Eddy Current Inspection on Space Shuttle Hardware [PDF]
Over the life time of the Space Shuttle program, metal parts used for the Reusable Solid Rocket Motors (RSRMs) have been nondestructively inspected for cracks and surface breaking discontinuities using magnetic particle (steel) and penetrant methods ...
Felker, Jeremy, Hartmann, John
core +1 more source
Automated eddy current analysis of materials [PDF]
The use of eddy current techniques for characterizing flaws in graphite-based filament-wound cylindrical structures is described. A major emphasis was also placed upon incorporating artificial intelligence techniques into the signal analysis portion of ...
Workman, Gary L.
core +2 more sources
NASA SBIR abstracts of 1990 phase 1 projects [PDF]
The research objectives of the 280 projects placed under contract in the National Aeronautics and Space Administration (NASA) 1990 Small Business Innovation Research (SBIR) Phase 1 program are described.
Gilman, J. A. +2 more
core +1 more source
Index based triangulation method for efficient generation of large three-dimensional ultrasonic C-scans [PDF]
The demand for high speed ultrasonic scanning of large and complex components is driven by a desire to reduce production bottlenecks during the non-destructive evaluation of critical parts.
MacLeod, Charles N. +4 more
core +1 more source
Study of eddy current probes [PDF]
The recognition of materials properties still presents a number of problems for nondestructive testing in aerospace systems. This project attempts to utilize current capabilities in eddy current instrumentation, artificial intelligence, and robotics in ...
Wang, Morgan, Workman, Gary L.
core +1 more source

