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Encyclopedia results for Luminescence

Luminescence





Encyclopedia results for Luminescence

  1. C. Thomas Elliott

    luminescence and its applications, C. T. Elliott, Philosophical Transactions Mathematical, Physical ... SPRITE infrared detector Negative luminescence External links http archive.malverngazette.co.uk ...   more details



  1. Lutetium aluminium garnet

    Lutetium aluminium garnet commonly abbreviated LuAG , molecular formula Al sub 5 sub Lu sub 3 sub O sub 12 sub is a ceramic material that has been proposed for use as a high refractive index lens material. When doped with cerium it also exhibits scintillation physics scintillation with visible luminescence, making it a candidate for high energy photon detection. ref http www.nss mic.org 2006 Program ListProgram.asp?session N40 Transparent Ceramic Lutetium Aluminium Garnet Scintillators abstract ref References reflist External links Category Lutetium compounds inorganic compound stub Lutetium compounds ar de Lutetium Aluminium Granat ...   more details



  1. Anthrax Detection Device

    The BSM 2000 is a Bacterial spore detection system developed by Universal Detection Technology in collaboration with NASA s Jet Propulsion Laboratory, that can detect Anthrax Spores in the air. How the Device Functions By taking continuous air samples and using heat to cause the spores to release a chemical called dipicolinic acid , which is unique to bacterial spores. The acid reacts with a sensor which produces an intense green luminescence under ultraviolet light. The concentration of the spore sample can be determined by the intensity of illuminescense. References cite web title Universal Detection Technology work Udetection.com url http www.udetection.com accessdate December 8, 2006 External links http www.udetection.com product bsm 2000.asp Anthrax Detection Device Please add addition detection devices as found. Category Biotechnology products ...   more details



  1. Polyvinyl toluene

    Polyvinyltoluene PVT , polyvinyl toluene is a synthetic polymer . PVT can be doped with anthracene to produce a plastic scintillator . When subjected to ionizing radiation both particle radiation and gamma radiation , the amount of visible radiation emitted is proportional to the absorbed dose. PVT can be damaged by radiation with high stopping power, e.g. ion beam s. Such radiation breaks the C H covalent bond bonds and significantly reduces the luminescence yield. ref http www.sciencedirect.com science? ob ArticleURL& udi B6TVT 44HY3MP H& user 10& coverDate 01 2F31 2F2002& rdoc 1& fmt & orig search& sort d&view c& acct C000050221& version 1& urlVersion 0& userid 10&md5 615b0838aa3371ad9a8045ac6b09f826 ref References reflist polymer stub Category Vinyl polymers Category Phosphors and scintillators ...   more details



  1. Electrochemiluminescence

    Electrochemiluminescence or electrogenerated chemiluminescence ECL is a kind of luminescence produced during electrochemical reactions in solutions. In electrogenerated chemiluminescence, electrochemically generated intermediates undergo a highly exergonic reaction to produce an electronically excited state that then emits light. ref name Forster cite journal author Forster RJ, Bertoncello P, Keyes TE title Electrogenerated Chemiluminescence journal Annual Review of Analytical Chemistry year 2009 pages 359 85 volume 2 pmid 20636067 url http arjournals.annualreviews.org doi abs 10.1146 annurev anchem 060908 155305 doi 10.1146 annurev anchem 060908 155305 bibcode 2009ARAC....2..359F ref ECL excitation is caused by energetic electron transfer redox reactions of electrogenerated species. Such luminescence excitation is a form of chemiluminescence where one all reactants are produced electrochemically on the electrodes. ref Electrogenerated Chemiluminescence, Edited by Allen J. Bard, Marcel Dekker, Inc., 2004 ref br ECL is usually observed during application of potential several volts to electrodes of electrochemical cell that contains solution of luminescent species polycyclic aromatic hydrocarbons, metal complexes in aprotic organic solvent ECL composition . Application ECL proved to be very useful in analytical applications as a highly sensitive and selective method. It combines analytical advantages of chemiluminescent analysis absence of background optical signal with ease of reaction control by applying electrode potential. Enhanced selectivity of ECL analysis is reached by variation of electrode potential thus controlling species that are oxidized reduced at the electrode and take part in ECL reaction ref Fahnrich K.A., Pravda M., Guilbault G.G., Recent Applications of Electrogenerated Chemiluminescence in Chemical Analysis, Talanta, 54 4 , 531 559, 2001 ref see electrochemical ... See also Chemiluminescence Luminescence Electrochemistry References reflist Category Luminescence ...   more details



  1. Photoprotein

    Photoproteins refer to bioluminescent proteins from luminous organisms. These proteins do not exhibit a luciferin luciferase reaction, ref http www.britannica.com EBchecked topic 458121 photoprotein Encyclop dia Britannica photoprotein Retrieved on 6 Mars, 2009 ref that is, a normal enzyme Substrate biochemistry substrate reaction. Instead, these proteins display luminescence proportional to the amount of the protein. Such proteins are stable as a luciferin photoprotein complex, often until the addition of another required factor, such as calcium in biology Ca sup 2 sup for the photoprotein aequorin . The term was first used to describe the unusual chemistry of the Chaetopterus luminescent system. ref Shimomura, O. Bioluminescence Chemical Principles and Methods World Scientific Publishing Co., 2006. ref References reflist Category Bioluminescence protein stub es Fotoprote na ...   more details



  1. Piezoluminescence

    Piezoluminescence is a form of luminescence created by pressure upon certain solids. This phenomenon is characterized by recombination processes involving electrons, holes and impurity ion centres ref Piezoluminescence phenomenon N. A. Atari Physics Letters A Volume 90, Issues 1 2, 21 June 1982, Pages 93 96. ref Some piezoelectricity piezoelectric crystals give off a certain amount of piezoluminescence when under pressure, as in handheld cigarette lighters when the button is pressed. ref The Source Field Investigations The Hidden Science and Lost Civilizations Behind the 2012 Prophecies ref NaCl, KCl, KBr and polycrystalline chips of LiF TLD 100 have been found to exhibit piezoluminescent properties. ref On Piezoluminescence in Irradiated Alkali Halides, A. Al Hashimi, A.M. Eid, K.V. Ettinger and J.R. Mallard, Radiat Prot Dosimetry 1983 6 1 4 203 205. ref It has also been discovered that ferroelectric polymers exhibit piezoluminescence upon the application of stress. ref Reynolds, George 1997 . Piezoluminescence from a ferroelectric polymer and quartz . Journal of Luminescence Princeton 75 4 295 299 ref In the lore of illicit psychadellic substance production, Dimethyltryptamine DMT , 5 MeO DMT , and Lysergic acid diethylamide LSD have been reported to exhibit piezoluminescent qualities. As specifically noted in the book Acid Dreams , it is stated that Owsley Stanley Augustus Owsley Stansley III , one of the most prolific producers of Lysergic acid diethylamide LSD in the 1960s, observed piezoluminescence in the compound s purest form ref Acid Dreams The Complete Social History of LSD The CIA, the Sixties, and Beyond, by Martin A. Lee and Bruce Shlain, pg 174 ref This piezoluminescence could be related to the general luminescent qualities of both tryptophan l tryptophan and tyrosine l tyrosine ref STEEN, H. B. 1967 , ON THE LUMINESCENCE OF L TRYPTOPHANE AND l TYROSINE ... 93 96 Category Luminescence ...   more details



  1. OSL

    OSL is a three letter acronym that could mean Starleague Ongamenet Ongamenet Starleague , a major tournament for StarCraft professional competitors in South Korea Ontario Soccer League , a semi pro soccer league in Ontario, Canada Open Software License , an open source software license Open Source Lab , the Open Source research facility at Oregon State University Optically stimulated luminescence , a method of measuring doses from ionizing radiation Orbiting Solar Laboratory Oregon Short Line Railroad Oriented Strand Lumber , a type of Engineered wood , similar to Oriented strand board OSB but not the same OSL may also refer to OSL, the IATA Airport code for Oslo Airport, Gardermoen OSL, the ICAO Airline Designator for Sosoliso Airlines disambig Category Internet slang de OSL fr OSL ko OSL it OSL nl OSL ja OSL pl OSL ...   more details



  1. Zhanghengite

    Infobox mineral name Zhanghengite category boxwidth boxbgcolor image imagesize caption formula CuZn strunz 01.AB.10a molweight color Golden yellow habit system Isometric Hexoctahedral twinning cleavage None fracture mohs 3.5 luster Metallic refractive opticalprop birefringence pleochroism streak bronze gravity 3.92 density melt fusibility diagnostic solubility diaphaneity Opaque luminescence Non fluorescent other references ref http webmineral.com data Zhanghengite.shtml Webmineral ref ref name Mindat http www.mindat.org min 4398.html Mindat.org ref Zhanghengite is a mineral consisting of 80 copper and zinc, 10 iron with the balance made up of chromium and aluminium. Its color is golden yellow. It was discovered in 1986 during the analysis of the Bo Xian meteorite and is named after Zhang Heng , an ancient Chinese astronomer. See also List of minerals named after people References Reflist Category Native element minerals Category Copper minerals Category Zinc minerals Category Cubic minerals mineral stub it Zhanghengite ...   more details



  1. Light-emitting capacitor

    Light emitting capacitor , or LEC , is a term used since at least 1961 ref Proceedings of the National Electronics Conference, Volume 17 , National Engineering Conference, Inc., 1961 page 328 ref to describe Electroluminescence electroluminescent panels. General Electric has patents dating to 1938 on flat electroluminescent panels that are still made as night light s and backlights for instrument panel displays. The drawbacks of conventional electroluminescent lights are low efficiency and lifetimes limited to hundreds of hours. Operation Electroluminescent panels are a capacitor where the dielectric between the outside plates is a phosphor that gives off photon s when the capacitor is charged. By making one of the contacts transparent, the large area exposed emits light. ref Raymond Kane, Heinz Sell , Revolution in lamps a chronicle of 50 years of progress, 2nd ed. ,The Fairmont Press, Inc., 2001 ISBN 0881733784, pages 122 124 ref See also Electroluminescent display Electroluminescent wire Photoelectrochemical cell Electrochemiluminescence References references External links http www.ceelite.com Category Capacitors Category Lighting Category Luminescence electronics stub ...   more details



  1. Mechanoluminescence

    Mechanoluminescence is light emission resulting from any mechanical action on a solid. It can be produced through ultrasound, or through other means. Fractoluminescence is caused by stress that results in the formation of fractures. Piezoluminescence is caused by pressure that results only in elastic deformation . ref cite web url http goldbook.iupac.org P04672.html title IUPAC Gold Book Piezoluminescence ref Triboluminescence is nominally caused by rubbing, but actually because of resulting fractoluminescence, so is often used as a synonym. ref cite web url http goldbook.iupac.org T06499.html title IUPAC Gold Book Triboluminescence ref Sonoluminescence is the emission of short bursts of light from imploding bubbles in a liquid when excited by sound. See also List of light sources References reflist External links http www.sciencedaily.com releases 2006 11 061110092605.htm Ultrasound Generates Intense Mechanoluminescence Category Luminescence Category Light sources mk ...   more details



  1. Elektronika 7

    orphan date March 2008 Image EL 7.JPG thumb right A typical layout of Electronics 7 clocks Electronics 7 are Industry industrial clock s with luminescent indicators where each figure was formed by four or eleven 7 segment lamps. For each indicator there was a board decoding the binary code sent by the main board. There were also models based on light emitting diode s . The basic shortcoming of the clocks was that the segments of the display were gradually burnt out, and there was a significant difference in a luminescence between more often and less often displayed segments. It usually happened after ten or more years of continuous work. All the street and wall clocks were based on the kit by Saratov factory Reflector and even now are used in many administrative and industrial premises in Russia . The clocks were made on the basis of Vacuum fluorescent display vacuum fluorescent indicators manufactured in Russia. Category Clocks Category Soviet brands ru 7 ...   more details



  1. In Your Mind (song)

    Infobox single See Wikipedia WikiProject Songs Name tre une femme Cover Anggun tre Une Femme Single Cover.jpg Artist Anggun from Album Luminescence album Luminescence Released 2005 Format CD Single Recorded 2004 Length 3 22 Genre Pop music pop , contemporary R&B R&B Label Heben Music Producer FBcool Writer Jean Pierre Ta eb Chart position Last single This single tre une femme 2005 Next single Cesse la pluie br 2005 tre une femme English Being a Woman is the first single from the third French album, Luminescence album Luminescence by Anggun . This single was released in late 2004, earlier than the album which was released in 2005. This single peaked at 16 at Syndicat National de l dition Phonographique France Singles Top 100 , making her second Top 20 hits in France. According to Bureau Export french music.org the song peaked at 2 in 2005 Airplay Chart and became one of the biggest hits in 2005. This single was also chosen as The most popular single 2004 by Radio France International . English version of the song, In Your Mind , was popular in Asia as well and has since remained as one of Anggun s famous songs. Song information Unreferenced section date March 2010 tre une femme was composed by Jean Pierre Ta eb in 2004. The song relies heavily on Arabic music , with R&B influence. The French version of the song has a guest rap from Diam s titled Juste tre une femme and a solo version. The song Ye Ishq Hai, from the India Indian movie, Jab We Met uses a similar tune to Anggun s song. Track listing CD Single tre une femme small Solo Version small tre une femme small Fbcool Extended Club Mix small Voir l envers small G n rique de Flat Mania small Remixes CD Single tre Une Femme small Solo Version small &mdash 3 23 tre Une Femme small FbCool Extended Club Mix small &mdash 6 08 tre Une Femme small FbCool Extended Dub Mix small &mdash 5 49 tre Une Femme small Instrumental Version small &mdash 3 22 tre Une Femme small A Capella Mix &mdash small 3 20 Chart perf ...   more details



  1. Saviour (Anggun song)

    Infobox single See Wikipedia WikiProject Songs Name Cesse la pluie Cover Anggun Cesse la Pluie Single Cover.jpg Artist Anggun from Album Luminescence album Luminescence Released 2005 Format CD Single Recorded 2004 Length Genre Pop rock Label Sony BMG Producer Chart position Last single tre une femme br 2005 This single Cesse la Pluie br 2005 Next single Juste avant toi br 2006 Cesse la pluie English Stop the Rain is the second single from Anggun s third French album, Luminescence album Luminescence in 2005 . The English version of the song, Saviour , was also the soundtrack of film Transporter 2 . Cesse la pluie also has Indonesian version, titled Mantra , which became a hit in Indonesia. Despite not having same success as its predecessor, tre une femme , the song spent more weeks on French Singles Chart , 23 weeks on the Top 100. Track listing Expand section songwriters and lengths date February 2010 Cesse la pluie Cesse la pluie Teetoff Dance Remix Saviour Etre une femme Indian Vibes Remix Cesse la pluie Video Clip Video Cesse la pluie video was directed by Jean Baptiste Erreca in Spain. The video was shot in two versions normal and movie tie in with gold coloured filter was used to achieve the tinted effect. For movie tie in version, scenes taken from The Transporter 2 movie trailer were added in between. The treatment starts with water being released down the aqueduct, followed by closeup shots of Anggun focusing on her eyes and mouth. The singer then stood near the underground stream singing while the water drips on her. The scene is later followed by Anggun singing with the aid of her band. The following shot sees Anggun in Roberto Cavalli camo print caftan swinging the elongated sleeves against the incoming wind. The band aided singing scene repeated until the next, where she, dressed in an embellished black tulle ballgown, plays with fire lit from the tips of her silver finger caps. As the video enters its second half ending frame, the shots were mixed wit ...   more details



  1. Sparrows (album)

    Unreferenced date October 2009 Infobox Album See Wikipedia WikiProject Albums Name Sparrows Type Album Artist Anathallo Cover sparrows cover.jpg 100 px Released 2002 Genre Indie rock Label Selah Records Last album Luminous Luminescence in the Atlas Position br 2001 This album Sparrows br 2002 Next album A Holiday at the Sea EP br 2003 Sparrows is the second album by Anathallo , released in 2002 on Selah Records . The original artwork, featuring the hand, had been designed by long time friend Danny Bracken prior to joining the band on guitar. Track listing Aaron Held His Peace To Gary and Marcus The Sovereignty of God Is Omnipresent Fugue 24 A Song for Christine I Thought in My Heart... Sparrows Just Because You Can t See the Sun Doesn t Mean It s Not Shining DEFAULTSORT Sparrows Album Category 2002 albums 2000s indie rock album stub ...   more details



  1. Radioluminescence

    in phosphor External links Artificial light sources Category Luminescence Physics stub fr Radioluminescence ...   more details



  1. Optode

    Unreferenced date December 2009 An optode or optrode is an optical sensor device that optically measures a specific substance usually with the aid of a chemical transducer . Construction An optode requires three components to function a chemical that responds to an analyte , a polymer to immobilise the chemical transducer and instrumentation Optical fiber optical fibre , Light light source , detector and other electronics . Optodes usually have the polymer matrix coated onto the tip of an optical fibre, but in the case of evanescent wave optodes the polymer is coated on a section of fibre that has been unsheathed. Operation Optodes can apply various optical measurement schemes such as Reflection physics reflection , absorption electromagnetic radiation absorption , evanescent wave, luminescence fluorescence and phosphorescence s , chemiluminescence , surface plasmon resonance . By far the most popular methodology is luminescence. Luminescence in solution obeys the linear Stern Volmer relationship . Fluorescence of a molecule is Quenching fluorescence quenched by specific analytes, e.g., ruthenium complexes are quenched by oxygen. When a fluorophore is immobilised within a polymer matrix a myriad of micro environments are created. The micro environments reflect varying diffusion co efficients for the analyte. This leads to a Nonlinearity non linear relationship between the fluorescence and the quencher analyte . This relationship is modelled in various ways, the most popular model is the two site model created by James Demas University of Virginia . The signal fluorescence to oxygen ratio is not linear, and an optode is most sensitive at low oxygen concentration, i.e., the sensitivity decreases as oxygen concentration increases. The optode sensors can however work in the whole region 0 100 oxygen saturation in water, and the calibration is done the same way as with the Clark electrode Clark type sensor . No oxygen is consumed and hence the sensor is stirring insensit ...   more details



  1. Rhodamine 123

    Rhodamine 123 ref . Its luminescence quantum yield is 0.90 ref R. F. Kubin and A. N. Fletcher ... X J. Luminescence 27 1982 455 ref . References reflist See also Dye laser Laser dye s Rhodamine Rhodamine ...   more details



  1. Photoluminescence excitation

    ground state and the electron will loose it s energy. Luminescence is the process whereby light is emitted ... to the ground state . Usually the strongest luminescence of the material is from the lower levels ... Lab of Pierre Aigrain experimental setup of photoluminescence Category Spectroscopy Category Luminescence ...   more details



  1. Activator (phosphor)

    Luminescence Category Phosphors and scintillators ...   more details



  1. Co-option (biology)

    could be visualized because of the luminescence that will emit. File Genetic modification of Influenza ... targeted an essential gene and the result of the luminescence assay in the corresponding infected culture should not be taken into account. Cultures are incubated and luminescence assays performed at different times. Possible results and causes are Cells that don t show luminescence. Cellular viability ... for the virus in some of the steps previous to the translation of viral genes. Cells that show luminescence ...   more details



  1. Cathodoluminescence

    as well. In particular, the luminescence of dislocation dislocated silicon is different from ..., V.147, ed. P. W. Hawkes, P. 1 2007 Category Electron beam Category Light sources Category Luminescence ...   more details



  1. In vitro toxicology

    chemical reaction between the assay and ATP content of cells produces luminescence. The amount of luminescence is then measured by a photometer and can be translated into number cells alive since ATP assay assumes alive cells still have ATP inside it. Luminescence level recorded is proportional ...   more details



  1. Thermoluminescence

    page 2 Category Luminescence ca Termoluminesc ncia cs Termoluminiscence de Thermolumineszenz es Termoluminiscencia ...   more details



  1. ECL

    ECL may stand for ECL programming language , an extensible programming language developed at Harvard ECL, data centric programming language for Big Data , a declarative, data centric programming language used for data intensive supercomputing Exit Control List , which lists people prohibited from exiting Pakistan Eastern Counties Football League Eastern Counties League , a football league in East Anglia, England Ecolab , a sanitation supply company whose NYSE ticker symbol is ECL Ecole centrale de Lille , a graduate engineering school in Lille, France Ecole centrale de Lyon , a graduate engineering school in Lyon, France Educational Community License , an open source license issued to academic institutions for otherwise copyrighted material Embeddable Common Lisp , an implementation of the Lisp programming language Emitter coupled logic , an electronic logic family Electrochemiluminescence , a kind of luminescence produced during electrochemical reactions in solutions Enterochromaffin like cell , a gastric cell Chemoluminescence ECL Enzymatic Chemiluminescence , a technique used commonly in biochemistry Horseradish peroxidase Enhanced chemiluminescence ECL Enhanced Chemoluminescence UEFA Champions League European Champions League , top club football competition in Europe Eastern Colored League one of the several Negro Leagues that were established during the early twentieth century in the United States when professional baseball was segregated disambig de ECL fr ECL it ECL ja ECL sr ECL ...   more details




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