Results 141 to 150 of about 51,680 (312)

Quantifying "Cliffs" in Design Space

open access: yes, 2014
This paper studies the regions of parameter space of engineering design in which performance is sensitive to design parameters. Some of these parameters (for example, the dimensions and compositions of components) constitute the design, but others are ...
Katz, J. I.
core   +1 more source

Ultra‐High‐Efficiency On‐Chip CO2 Conversion by Nanosecond Self‐Pulsing Micro‐Plasma Devices

open access: yesCarbon Energy, EarlyView.
A micro‐plasma chip with sub‐10‐μm electrode gaps is introduced for efficient CO2‐to‐CO conversion. The device self‐converts a DC power supply into nanosecond pulses, producing field‐emission electrons that vibrationally excite CO2, driving dissociation via the ladder‐climbing mechanism. A scaled‐up chip array achieves 30% single‐pass conversion and 50%
Guangyu Sun   +5 more
wiley   +1 more source

Extended temperature range ACPS thruster investigation [PDF]

open access: yes
The successful hot fire demonstration of a pulsing liquid hydrogen/liquid oxygen and gaseous hydrogen/liquid oxygen attitude control propulsion system thruster is described.
Blubaugh, A. L., Schoenman, L.
core   +1 more source

Rocket engine injectorhead with flashback barrier [PDF]

open access: yes, 2012
Propellants flow through specialized mechanical hardware that is designed for effective and safe ignition and sustained combustion of the propellants. By integrating a micro-fluidic porous media element between a propellant feed source and the combustion
Fisher, David J.   +2 more
core   +1 more source

Preparing an Exsolvable Ru‐Substituted LaFeO3 Perovskite With High Surface Area From a Self‐Sacrificial Polymer Template: A Versatile Strategy for Enhanced Catalytic Performance

open access: yesChemistry – A European Journal, EarlyView.
High‐surface‐area LaFe0.9Ru0.1O3 is prepared by infiltration of porous Amberlite XAD16 polymer beads. Ru exsolution of this perovskite material leads to a supported catalyst with small Ru particles, exhibiting promising catalytic performance propane combustion.
Jaime Gallego   +4 more
wiley   +1 more source

Flash Point and Chemical Composition of Aviation Kerosene (Jet A) [PDF]

open access: yes, 2000
The relationship between chemical composition, flash point, and ignition energy was examined for eight samples of aviation kerosene (Jet A) with flash points between 29°C (84°F) and 74°C (165°F).
Lee, J. J.   +3 more
core  

Domestic electronic ignition on spark ignition engines

open access: yes, 1998
Se presenta la modificación del sistema de encendido convencional por ruptor, adaptado y construido a partir de los sistemas de encendido inductivo Bosch y Delco Remy; obteniéndose el sistema de encendido electrónico. Las pruebas experimentales se efectuaron en el motor Ford de cuatro cilindros ubicado en la Universidad Nacional de Ingeniería ...
Valderrama Romero, Andrés   +1 more
openaire   +1 more source

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