Lustre or Luster may refer to:
Lustre (Claire Voyant album)
' Lustre 'is the fourth studio album released by Claire Voyant.
Lustre is the codename of a secret treaty signed by France and the Five Eyes (FVEY) for cooperation in signals intelligence and for mutual data exchange between their respective intelligence agencies. Its existence was revealed during the 2013 global surveillance disclosure based on documents leaked by the former NSA contractor Edward Snowden.
Lustre (musical project)
Lustre is the musical project of Henrik Sunding who goes under the pseudonym "Nachtzeit". Lustre began in 2008 after the dissolve of The Burning.
Unlike most Black Metal artists, Lustre uses guitars and vocals as background instruments and instead uses keyboards and synths as the primary instrument. Lustre's lyrical themes include nature, darkness, mysticism, and spirituality.
Lustre or luster is the way light interacts with the surface of a crystal, rock, or mineral. The word traces its origins back to the latinlux, meaning "light", and generally implies radiance, gloss, or brilliance.
A range of terms are used to describe lustre, such as earthy, metallic, greasy, and silky. Similarly, the term vitreous (derived from the Latin for glass, vitrum) refers to a glassy lustre. A list of these terms is given below.
Lustre varies over a wide continuum, and so there are no rigid boundaries between the different types of lustre. (For this reason, different sources can often describe the same mineral differently. This ambiguity is further complicated by lustre's ability to vary widely within a particular mineral species.) The terms are frequently combined to describe intermediate types of lustre (for example, a "vitreous greasy" lustre).
Some minerals exhibit unusual optical phenomena, such as asterism (the display of a star-shaped luminous area) or chatoyancy (the display of luminous bands, which appear to move as the specimen is rotated). A list of such phenomena is given below.
Lustre (file system)
Lustre is a type of parallel distributed file system, generally used for large-scale cluster computing. The name Lustre is a portmanteau word derived from Linux and cluster. Lustre file system software is available under the GNU General Public License (version 2 only) and provides high performance file systems for computer clusters ranging in size from small workgroup clusters to large-scale, multi-site clusters.
Because Lustre file systems have high performance capabilities and open licensing, it is often used in supercomputers. Since June 2005, it has consistently been used by at least half of the top ten, and more than 60 of the top 100 fastest supercomputers in the world, including the world's No. 2 and No. 3 ranked TOP500 supercomputers in 2014, Titan and Sequoia.
Lustre file systems are scalable and can be part of multiple computer clusters with tens of thousands of client nodes, tens of petabytes (PB) of storage on hundreds of servers, and more than a terabyte per second (TB/s) of aggregate I/O throughput. This makes Lustre file systems a popular choice for businesses with large data centers, including those in industries such as meteorology, simulation, oil and gas, life science, rich media, and finance.
Lustre (programming language)
Lustre is a formally defined, declarative, and synchronous dataflow programming language for programming reactive systems. It began as a research project in the early 1980s. A formal presentation of the language can be found in the 1991 Proceedings of the IEEE. In 1993 it progressed to practical, industrial use in a commercial product as the core language of the industrial environment SCADE, developed by Esterel Technologies. It is now used for critical control software in aircraft, helicopters, and nuclear power plants.
Lustre (Ed Harcourt album)
Lustre is the fifth studio album from British singer-songwriter Ed Harcourt. The album was released on 14 June 2010 in the UK, and a day later in the US. The album is the first release on Harcourt's own label Piano Wolf Recordings, distributed through Essential Music Marketing (in North America, the album was released through Nice Music Group). The album follows his 2009 EP Russian Roulette, and is his first studio album since 2006's The Beautiful Lie. On his official MySpace blog, Harcourt said of the album: "It's got horns, violins, howling, mellophones, the Langley sisters, barks, whistles, hell I even sung down by a creek in the middle of the night." Harcourt told Direct Current that the album is "about that gleaming quality – the vitality, the passion – that drives you to keep going and not give up." A special edition of the album was also released in the UK, featuring a bonus disc of unreleased recordings. The album was preceded by the radio single "Do as I Say Not as I Do."
Lustre reached number 12 on the UK Indie Album Chart upon its release.
The Collaborative International Dictionary
Luster \Lus"ter\ Lustre \Lus"tre\, n. [L. lustrum: cf. F. lustre.] A period of five years; a lustrum.
Both of us have closed the tenth luster.
Luster \Lus"ter\, Lustre \Lus"tre\, n. [F. lustre; cf. It. lustro; both fr. L. lustrare to purify, go about (like the priests at the lustral sacrifice), traverse, survey, illuminate, fr. lustrum a purificatory sacrifice; perh. akin to E. loose. But lustrare to illuminate is perhaps a different word, and akin to L. lucere to be light or clear, to shine. See Lucid, and cf. Illustrious, Lustrum.]
Brilliancy; splendor; brightness; glitter.
The right mark and very true luster of the diamond.
--Sir T. More.
The scorching sun was mounted high, In all its luster, to the noonday sky.
Note: There is a tendency to limit the use of luster, in this sense, to the brightness of things which do not shine with their own light, or at least do not blaze or glow with heat. One speaks of the luster of a diamond, or of silk, or even of the stars, but not often now of the luster of the sun, a coal of fire, or the like.
Renown; splendor; distinction; glory.
His ancestors continued about four hundred years, rather without obscurity than with any great luster.
--Sir H. Wotton.
A candlestick, chandelier, girandole, or the like, generally of an ornamental character.
(Min.) The appearance of the surface of a mineral as affected by, or dependent upon, peculiarities of its reflecting qualities.
Note: The principal kinds of luster recognized are: metallic, adamantine, vitreous, resinous, greasy, pearly, and silky. With respect to intensity, luster is characterized as splendent, shining, glistening, glimmering, and dull.
A substance which imparts luster to a surface, as graphite and some of the glazes.
A fabric of wool and cotton with a lustrous surface, -- used for women's dresses.
Luster ware, earthenware decorated by applying to the glazing metallic oxides, which acquire brilliancy in the process of baking.
Luster \Lus"ter\, Lustre \Lus"tre\, v. t. [imp. & p. p. Lustred; p. pr. & vb. n. Lustering, or Lustring.] To make lustrous. [R. & Poetic]
Flooded and lustered with her loosened gold.
Lustre \Lus"tre\, n. Same as Luster.
Longman Dictionary of Contemporary English
Etymology 1 n. (context British spelling English) (alternative form of luster English) (shine, etc.) vb. (context British spelling English) (alternative form of luster English) Etymology 2
n. (context British spelling English) (alternative form of luster English) (a lustrum)
Douglas Harper's Etymology Dictionary
"gloss, radiance;" see luster (n.1).
Usage examples of "lustre".
Armenia: and a territorial acquisition, which Augustus might have despised, reflected some lustre on the declining empire of the younger Theodosius.
Of the dark world, ten thousand spheres diffuse Their lustre through its adamantine gates.
Then with preluding low, a thousand harps, And citherns, and strange nameless instruments, Sent through the fragrant air sweet symphonies, And the winged dancers waved in mazy rounds, With changing lustres like a summer sea.
Matching of Hues -- Purity and Luminosity of Colours -- Matching Bright Hues -- Aid of Tinted Films -- Matching Difficulties Arising from Contrast -- Examination of Colours by Reflected and Transmitted Lights -- Effect of Lustre and Transparency of Fibres in Colour Matching -- Matching of Colours on Velvet Pile -- Optical Properties of Dye-stuffs, Dichroism, Fluorescence -- Use of Tinted Mediums -- Orange Film -- Defects of the Eye -- Yellowing of the Lens -- Colour Blindness, etc.
Dark and hushed, the river flowed sullenly on, save where the reflected stars made a tremulous and broken beam on the black surface of the water, or the lights of the vast City, which lay in shadow on its banks, scattered at capricious intervals a pale but unpiercing wanness rather than lustre along the tide, or save where the stillness was occasionally broken by the faint oar of the boatman or the call of his rude voice, mellowed almost into music by distance and the element.
But the freeborn Barbarians were not dazzled by the lustre of the diadem, and the people asserted their indefeasible right of choosing, deposing, and punishing the hereditary servant of the state.
Alfred Austin if we take it for granted that his appointment carries the laureateship back to what it was before Wordsworth and Tennyson lent it the lustre of their names.
It was extremely well-kept with a pleasing lustre on its dark green bars and oil-bath and a clean sparkle on the rustless spokes and rims.
Lassa had always a good balance chez Schneider, Ruter et Cie, the Austrian bankers in Rue Rivoli, and wore diamonds of conspicuous lustre.
In page 216 of this work, allusion will be found by name to some of the brilliant wits who graced this festive board, and gave a lustre to the feast.
The doors, wide enough to admit a dozen Martialists abreast, parted, and we entered a vaulted hall whose arched roof was supported not by pillars but by gigantic statues, each presenting the lustre of a different jewel, and all wrought with singular perfection of proportion and of beauty.
Peri floating easefully out of some far-off sphere of sky-wonders,--an aerial Maiden-Shape glided into the full lustre of the varying light,--a dancer, nude save for the pearly glistening veil that was carelessly cast about her dainty limbs, her white arms and delicate ankles being adorned with circlets of tiny, golden bells, which kept up a melodious jinglejangle as she moved.
Calton palace,--the satellites of the heir apparent, the brave, the witty, and the gay,--the soul-inspiring, mirthful band, whose talents gave a splendid lustre to the orb of royalty, far surpassing the most costly jewel in his princely coronet.
For when the illustrious boy had perlustrated three lustres, already attaining his sixteenth year, he was, with many of his-fellow-countrymen, seized by the pirates who were ravaging the borders, and was made captive and carried into Ireland, and was there sold as a slave to a certain pagan prince named Milcho, who reigned in the Northern parts of the island, even at the same age when Joseph is recorded to have been sold in Egypt.
For when the illustrious boy had perlustrated three lustres, already attaining his sixteenth year, he was, with many of his countrymen, seized by the pirates who were ravaging those borders, and was made captive and carried into Ireland, and was there sold as a slave to a certain pagan prince named Milcho, who reigned in the northern part of the island, even at the same age in which Joseph is recorded to have been sold into Egypt.