Results 141 to 150 of about 40,392 (313)

Space Transportation Materials and Structures Technology Workshop [PDF]

open access: yes
The Space Transportation Materials and Structures Technology Workshop was held on September 23-26, 1991, in Newport News, Virginia. The workshop, sponsored by the NASA Office of Space Flight and the NASA Office of Aeronautics and Space Technology, was ...
Cazier, Frank W., Jr., Gardner, James E.
core   +1 more source

Molecularly Engineered Fluorescent Magnetic Microrobots for Sensing High‐Energy Nitroaromatic Explosives in Highly Acidic Aqueous Environments

open access: yesSmall, Volume 22, Issue 5, 22 January 2026.
Magnetically powered fluorescent microrobots embedded with ketenimine‐based probes enable remote sensing of high‐energy explosive compounds in harsh acidic environments. Upon interaction with picric acid, the fluorescence of the microrobots is quenched, providing a precise “on–off” detection mechanism for selective monitoring in confined and hazardous ...
Nikhil Thekkedath Madhu   +2 more
wiley   +1 more source

Experimental Research into an Innovative Green Propellant Based on Paraffin–Stearic Acid and Coal for Hybrid Rocket Engines

open access: yesInventions
This study focuses on an innovative green propellant based on paraffin, stearic acid, and coal, used in hybrid rocket engines. Additionally, lab-scale firing tests were conducted using a hybrid rocket motor with gaseous oxygen as the oxidizer, utilizing ...
Grigore Cican   +5 more
doaj   +1 more source

Experimental Study of Fragmentation of Hybrid Rocket Fuel

open access: diamond, 2014
Koki Kitagawa   +6 more
openalex   +2 more sources

THE CONTESTED URBANISM OF ABANDONMENT: The Afterlife of Two Distressed Neighborhoods in Detroit

open access: yesInternational Journal of Urban and Regional Research, Volume 50, Issue 1, Page 5-23, January 2026.
Abstract In post‐industrial cities in decline, what happens to leftover spaces after abandonment? This question lies at the root of trying to make sense of entrenched distress in neighborhoods in deindustrializing Detroit, a city struggling for more than five decades with disinvestment, job losses, population shrinkage, a collapsed housing market ...
Martin J. Murray   +2 more
wiley   +1 more source

Passive Control of Low-Frequency Instability in Hybrid Rocket Combustion

open access: gold, 2021
Wonjeong Hyun   +3 more
openalex   +1 more source

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