Results 81 to 90 of about 24,248 (166)
A passive infrared ice detection technique for helicopter applications [PDF]
A technique has been developed, and successfully tested, to detect icing remotely on helicopter rotor blades. Using passive infrared (IR) thermometry it is possible to detect the warming caused by latent heat released as supercooled water freezes. During
Dershowitz, Adam L. +1 more
core +1 more source
A Comprehensive Review of Waste‐Derived Materials for Solar Still Performance Enhancement
Solar desalination reduces energy use and produces freshwater sustainably, but its productivity is limited and cannot meet rising demand. Thus, solar desalination system improvements are sought to boost water productivity. Waste materials are abundantly available and burden the environment, making them low‐cost enhancers for solar desalination systems.
A. S. Abdullah +6 more
wiley +1 more source
NASA propulsion controls research [PDF]
Multivariable control theory is applied to the design of multiple input and output engine controls. Highly-accurate, real-time engine simulations are utilized for control development and checkout.
Teren, F.
core +1 more source
Abstract The Biofluid Biomarkers Best Practices Workgroup of the National Alzheimer's Coordinating Center–Alzheimer's Disease Research Center (ADRC) Biomarker Core Steering Committee was convened to update pre‐analytical handling guidelines for biofluid biomarkers, focusing on cerebrospinal fluid (CSF) and blood.
Timothy E. Van Meter +21 more
wiley +1 more source
Probing Interfacial Reaction Pathways in Atomic Layer Deposition on Sulfide Superionic Conductors
Atomic layer deposition of Al2O3 on the sulfide superionic conductor Li6PS5Cl proceeds via reactions with native OH, SH, and PS3‐OH surface groups, enabling immediate nucleation and conformal sub‐nanometer coatings. Spectroscopic measurements combined with theory reveal reversible surface chemistry that preserves the sulfide framework, providing ...
Kyobin Park +13 more
wiley +1 more source
Aeronautical Engineering: A special bibliography with indexes, supplement 67, February 1976 [PDF]
This bibliography lists 341 reports, articles, and other documents introduced into the NASA scientific and technical information system in January ...
core +1 more source
Fluorine‐free acesulfame‐based ionic liquids and salts were synthesized and comprehensively analysed, revealing how anionic structure governs key physicochemical properties, paving the way towards safer and more sustainable electrolytes for clean energy storage.
Wern Huay Mah +3 more
wiley +1 more source
Accessibility Design and Operational Considerations in the Development of Urban Aerial Mobility Vehicles and Networks [PDF]
Urban aerial mobility vehicles and networks have recently gained considerable interest in the aviation community. These small, short-range vehicles with all-electric or hybrid-electric propulsion systems, tailored to metropolitan aerial transportation ...
Young, Larry A.
core +1 more source
Bleached and unbleached nanocelluloses were produced from the exhausted grape pomace and applied as coatings on PLA substrates for sustainable food packaging. Unbleached nanocelluloses were more hydrophobic and amorphous than bleached ones. The resulting bio‐based bleached nanocellulose‐coated PLA films showed a 68% reduction in O2 permeability ...
Jingwen Chen +6 more
wiley +1 more source
INTELSAT 4 in orbit liquid slosh tests and problems in the theoretical analysis of the data [PDF]
The destabilizing effect of the liquid on attitude nutation stability was determined from an extensive series of inorbit tests. The liquid slosh driving frequency ratio (rotor nutation frequency/rotor spin rate) was varied over the range of 0.58 to 0.70 ...
Slabinski, V. J.
core +1 more source

