Results 171 to 180 of about 1,204,060 (386)

Carbon Fiber Reinforced Thermoplastics: From Materials to Manufacturing and Applications

open access: yesAdvanced Materials, EarlyView.
A contemporary and critical review on carbon fiber reinforced thermoplastics. The common thermoplastic and carbon fiber applied in the manufacture of carbon fiber reinforced thermoplastics are summarized, and the processing and postprocessing methods are reviewed, with emphasis on state‐of‐the‐art welding techniques.
Howard (Hao) Wang   +6 more
wiley   +1 more source

STS-1 operational flight profile. Volume 1: Ground rules and constraints cycle 3.1.1 [PDF]

open access: yes
The ground rules and constraint to be used in generating the Space Transportation System 1 Flight operational flight profile are established.

core   +1 more source

Glaphene: A Hybridization of 2D Silica Glass and Graphene

open access: yesAdvanced Materials, EarlyView.
‘Glaphene’, a novel hybrid material combining 2D silica glass and graphene, is synthesized via a scalable liquid precursor‐based vapor‐phase growth. This study reveals interlayer hybridization beyond van der Waals interactions, leading to emergent semiconducting behavior.
Sathvik Ajay Iyengar   +10 more
wiley   +1 more source

NASA’s astrophysics cross-observatory science support (ACROSS) initiative: enabling time-domain and multimessenger astrophysics

open access: yesFrontiers in Astronomy and Space Sciences
The Astro2020 Decadal Survey recommended an investment in Time-Domain and Multimessenger Astrophysics (TDAMM) as the top-priority sustaining activity in space for the coming decade. One aspect of NASA’s response to this recommendation is a pilot project,
T. B. Humensky   +14 more
doaj   +1 more source

How to Drawjectory? -- Trajectory Planning using Programming by Demonstration [PDF]

open access: yesarXiv
A flight trajectory defines how exactly a quadrocopter moves in the three-dimensional space from one position to another. Automatic flight trajectory planning faces challenges such as high computational effort and a lack of precision. Hence, when low computational effort or precise control is required, programming the flight route trajectory manually ...
arxiv  

Some Morphologic and Biochemical Observations of Semen in Nemestrina Monkeys Destined for Space Flight

open access: bronze, 1968
Richard C. Reznichek   +4 more
openalex   +1 more source

Workshop on Exercise Prescription for Long-Duration Space Flight [PDF]

open access: yes
The National Aeronautics and Space Administration has a dedicated history of ensuring human safety and productivity in flight. Working and living in space long term represents the challenge of the future.
Harris, Bernard A., Jr.   +1 more
core   +1 more source

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