Results 161 to 170 of about 179,602 (269)

Engine-induced structural-borne noise in a general aviation aircraft [PDF]

open access: yes
Structural borne interior noise in a single engine general aviation aircraft was studied to determine the importance of engine induced structural borne noise and to determine the necessary modeling requirements for the prediction of structural borne ...
Pomerening, D. J.   +2 more
core   +1 more source

Post‐Additional Proteins into Rubber Matrices Behave as Filler to Reinforce Rubber

open access: yesMacromolecular Materials and Engineering, EarlyView.
The post‐additional proteins exhibit a reinforcement effect regardless of the origin of the rubber. The proteins are lyophilized to obtain a powder, which is then incorporated into the rubber matrices using a solution‐mixing process. These findings suggest that protein can function as a reinforcing filler depending on the rubber preparation process ...
Yui Tsuji   +6 more
wiley   +1 more source

Hypersonic aircraft design [PDF]

open access: yes
A hypersonic aircraft is designed which uses scramjets to accelerate from Mach 6 to Mach 10 and sustain that speed for two minutes. Different propulsion systems were considered and it was decided that the aircraft would use one full scale turbofan-ramjet.
Alkamhawi, Hani   +5 more
core   +1 more source

Latex Serum‐Derived Supramolecular Networks Enable Toughening of Natural Rubber

open access: yesMacromolecular Rapid Communications, EarlyView.
Latex‐serum addition enhances strain‐induced crystallization (SIC) toughening in natural rubber, increasing tearing strength and extending the SIC activation window. Supramolecular networks form via bifurcated hydrogen bonding between polyol components (e.g., quebrachitol) and end‐functionalized polyisoprene chains, serving as effective crystallization
Katsuhiko Tsunoda   +5 more
wiley   +1 more source

Preliminary study of advanced turboprop and turboshaft engines for light aircraft [PDF]

open access: yes
The effects of engine configuration, advanced component technology, compressor pressure ratio and turbine rotor-inlet temperature on such figures of merit as vehicle gross weight, mission fuel, aircraft acquisition cost, operating, cost and life cycle ...
Eisenberg, J. D.   +2 more
core   +1 more source

Interaction Between Vortex‐Induced Vibrations and Base Vibrations in Piezoelectric Harvesters

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In the present era, powering sensors using green energy is a significant challenge. One promising solution for the power supply of small sensors relies on piezoelectric energy harvesters excited by vortex‐induced vibrations (VIVs) generated by wind.
Michele Tonan   +3 more
wiley   +1 more source

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