lustre

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lustre

(US), luster
1. 
a. a shiny metallic surface on some pottery and porcelain
b. (as modifier): lustre decoration
2. Mineralogy the way in which light is reflected from the surface of a mineral. It is one of the properties by which minerals are defined

LUSTRE

(A French acronym for Synchronous real-time Lucid). Real-time dataflow language for synchronous systems, especially automatic control and signal processing. A Lucid subset, plus timing operators and user-defined clocks.

Designed for automatic control applications. It is based on the idea that automatic control engineers use to analyse, and specify their systems in terms of functions over sequences (sampled signals). It thus seems both safe and cost effective to try to compile directly those descriptions into executable code. A lot of work has been done, so as to get efficient compilation, and also in formal verification. The language has been used in nuclear plant control, and will be used in aircraft control.

["Outline of a Real-Time Data-Flow Language", J.-L. Bergerand et al, Proc IEE-CS Real Time Systems Symp, San Diego, IEEE Dec 1985, pp. 33-42].

["LUSTRE: A Declarative Language for Programming Synchronous Systems", P. Caspi et al, Conf Rec 14th Ann ACM Symp on Princ Prog Langs, 1987].
References in periodicals archive ?
The infected hairs are usually small, lustreless and brittle and such hairs are easily epilated.
Shell somewhat lustreless rather than glossy; predominantly mauve-brown in the freshest specimens, with some axial variations in intensity particularly on middle spire whorls; paler pinkish brown to fawn apically.
In 'Entrance' and 'Yarn (The Writer's Tale)' he celebrates the power of words, the secret passages they can open in the mind and how the poet's task is to 'subtly fold the lustreless straw to a sheen of gold'.
Helps to repair fragile, fissured and lustreless fingernails
It was like new life to him" (322), but when it is over, Dickens again deploys the strategy of reaction, of contrast: furious activity is followed by a return to the inner drama of guilt, a return to the image of Nancy's dead body and the corpse that cannot return a look, whose "widely staring eyes [are] so lustreless and so glassy" (322).
according as the glottis narrows or partially opens, it produces ringing or lustreless tones.
I awoke in the midsummer not-to-call night, I in the white and the walk of the morning: The moon, dwindled and thinned to the fringe i of a finger-nail held to the candle, Or paring of paradisaical fruit, i lovely in waning but lustreless, Stepped from the stool, drew back from the barrow, I of dark Maenefa the mountain; A cusp still clasped him, a fluke yet fanged him, I entangled him, not quit utterly.
Typically there are skin lesions (pigmented or depigmented areas with or without ulceration), scanty lustreless hair, an enlarged fatty liver, loss of interest in the surroundings, and loss of appetite.
The Mother lying nearly in a state of insensibility with sunken cheeks and lustreless eyes, showing no sign of life, except as she occasionally opened her parched and burning mouth for a little water, and yet clasping her infant to that chill and almost pulseless bosom, that was no longer able to give the nourishment it was crying for, on each side of her two other children, one in the same condition as herself and the other already stiffening in the embrace of death, whilst to complete the picture the affectionate and wretched husband, whom neither threats nor endeavours could keep away from those he loved so well, watched over them unceasingly, his sorrow speaking in his tears.
His thick, heavy, languid, lustreless black hair fell down behind his ears on to his shoulders, in that musician-like way that is so offensive to the normal Englishman.
8]), which for Conrad in The Mirror of the Sea, is a perception of its incalculable and inconceivable age, brought out for the man of sail by the spectacle of a storm, during which it is "as if the immemorial ages had been stirred up from the undisturbed bottom of ooze," and the sea takes on "an appearance of hoary age, lustreless, dull, without gleams, as though it had been created before light itself" (71).
4) That Cassandra must go first is significant as well; before she is led away, Garnier expands greatly on two sententias from his model Euripides to the effect that "The Trojans have the glory that is loveliest: they died for their own country" (Trojan Women 386-7) and "Though surely the wise man will forever shrink from war, / yet if war come, the hero's death will lay a wreath not lustreless on the city" (Trojan Women 400-2).