Results 41 to 50 of about 7,580,136 (353)

Nonequilibrium model of water generation in Aircraft Fuel Tanks

open access: yesCase Studies in Thermal Engineering, 2023
To investigate the formation of water contaminants in fuel tanks, a nonequilibrium model based on heat and mass transfer is established, and the dissolved water, suspended water, condensed water, free water are analyzed under different conditions.
Lei Shao   +5 more
doaj   +1 more source

Submanifolds with curvature normals of constant length and the Gauss map [PDF]

open access: yes, 2004
We show that a submanifold with curvature normal of constant length has constant principal curvatures under suitable global hypothesis.
A. J. Di Scala   +3 more
core   +1 more source

Photon noise and constant-volume operators [PDF]

open access: yesJournal of the Optical Society of America A, 1987
In an earlier paper [J. Opt. Soc. Am. A 2, 1769 (1985)] a class of nonlinear image processing operators was introduced in which each photoreceptor creates a nonnegative point-spread function whose center height is proportional to its quantum catch and whose volume is constant, so that the local spatial-summation area varies inversely with the local ...
openaire   +4 more sources

Carbonization of Biomass in Constant-Volume Reactors

open access: yesEnergy & Fuels, 2017
A novel carbonization process that realizes near-theoretical fixed-carbon yields in ~3 h is presented. Norwegian spruce and birch sawdusts were carbonized in a hermetically-sealed reactor at an initial nitrogen pressure of 0.1 MPa. During a carbonization test, the reactor vessel retained all pyrolytic products inside the hot reaction zone invoking high
Maider Legarra   +5 more
openaire   +2 more sources

Constant volume combustion of aluminum and cornstarch dust in microgravity

open access: yes, 1998
The subject of the present work is to report an experimental comparative study of the effect of dispersion-induced turbulence on dust combustion in constant volume vessel, carried out both in normal gravity and in microgravity environment.
Jarosinski J   +3 more
core   +1 more source

On the Volume of Sets Having Constant Width† [PDF]

open access: yesIsrael Journal of Mathematics, 1988
Let C be a set of constant width d in \({\mathbb{R}}^ n\). Besides other interesting results, a lower bound for the volume of C is given. Namely, if Vol B(d/2) denotes the n-dimensional volume of a ball B in \({\mathbb{R}}^ n\) with radius d/2, then \[ Vol C\geq (\sqrt{3+2/(n+1)}-1)^ n\cdot Vol B(d/2) \] holds.
openaire   +1 more source

Experimental Study of Constant Volume Sulfur Dust Explosions

open access: yesJournal of Combustion, 2015
Dust flames have been studied for decades because of their importance in industrial safety and accident prevention. Recently, dust flames have become a promising candidate to counter biological warfare. Sulfur in particular is one of the elements that is
Joseph Kalman   +2 more
doaj   +1 more source

Experimental studies on constant mass–volume depletion of gas-condensate systems

open access: yesEgyptian Journal of Petroleum, 2013
This paper presents a new empirical model to estimate dew point pressure Pd for gas condensate reservoirs as a function of routinely measured gas analysis and reservoir temperature.
M. El Aily   +4 more
doaj   +1 more source

THE COEFFICIENT OF EXPANSION OF AIR AT CONSTANT VOLUME [PDF]

open access: yesSchool Science and Mathematics, 1902
n ...
openaire   +2 more sources

Quasi-constant volume (QCV) spark ignition combustion [PDF]

open access: yes, 2009
The Otto cycle delivers theoretical maximum thermal efficiency. The traditional design of internal combustion engines using a simple slide-crank mechanism gives no time for a constant volume combustion which significantly reduces the cycle efficiency. In
Paul Stewart (17168044)   +4 more
core   +3 more sources

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