Letter NumberCombination QQ QS PR RR QR may stand for Qatar Airways , IATA code QR Queensland Rail , QR Limited, responsible for the railway system in Queensland, Australia Queen s Regulations , guidance on conduct in the UK s armed forces Queensr che , a progressive metal band Karakalpakstan Qoraqalpog iston Respublikasi , Uzbekistan, under ISO 3166 2 subcode UZ QR Nippon Cultural Broadcasting , a Tokyo radio station, from call sign JOQR Quintana Roo , a state of Mexico Quintana Roo company , a triathlon specific wetsuit and bicycle company Quick release skewer , used to secure the wheels on a bicycle Quiet Riot , a heavy metal band Quarterly Review , a defunct literary and political periodical Queen s Radio , student radio station at Queen s University Belfast Queen s Rangers , a military unit who fought in the American War of Independence QR Code , a two dimensional bar code Nissan QR engine ATCvet code QR Respiratory system , a section of the Anatomical Therapeutic Chemical Classification System for veterinary medicinal products In mathematics QR decomposition , a decomposition of a matrix QR algorithm , an eigenvalue algorithm using QR decomposition Quadratic reciprocity , a theorem from modular arithmetic Quasireversibility , a property of some queues disambig de QR fa QR fr QR ko QR it QR sw QR ja QR ru QR zh QR ... more details
File Wikipedia mobile en.svg thumb 150px QR Code for the URL of the English Wikipedia Mobile main page. Note that the white border is part of the encoding. A QR code short for Quick Response is a specific matrix barcode or two dimensional code , Machine readable medium readable by dedicated QR barcode ... by Toyota subsidiary Denso Denso Wave in 1994, the QR code is one of the most popular types of two dimensional barcodes. QR is the abbreviation for Quick Response , as the creator intended ... qrcode aboutqr e.html About 2D Code QR Code.com Denso Wave. Retrieved 2009 04 23. ref The technology ... slower adoption of QR Codes. ref name Why isn t everyone using QR codes? http www.imediaconnection.com content 28604.asp Why isn t everyone using QR codes? iMediaConnecton.com ref Overview Image QR Code Structure Example.svg 300px right Structure of a QR code, highlighting functional elements. Although initially used for tracking parts in vehicle manufacturing, QR codes are now used in a much ... aimed at mobile phone users known as mobile tagging . QR codes can be used to display text to the user ... QR codes for others to scan and use by visiting one of several free QR code generating sites. QR ... of the QR Code to display text, contact information, connect to a WLAN wireless network , or open ... operating system supports QR codes by natively including the barcode scanner ZXing on some models, and the browser supports Uniform Resource Identifier URI redirection, which allows QR Codes to send ... scanner, which is able to read QR codes, ref cite web url http europe.nokia.com support ... publisher Maemo.org accessdate 2010 07 28 ref is a QR code reader for the Maemo operating system. In the Apple iOS, a QR code reader is not natively included, but over 50 free Apps are available with reader ... covering the physical encoding of QR codes ref name qrstandard1 cite web url http www.denso wave.com qrcode qrstandard e.html title QR Code Standardization & 124 QR Code.com publisher Denso wave.com ... more details
In numerical linear algebra , the QR algorithm is an eigenvalue algorithm that is, a procedure to calculate the eigenvalues and eigenvectors of a Matrix mathematics matrix . The QR transformation was developed ... independently. ref J.G.F. Francis, The QR Transformation, I , The Computer Journal , vol. 4, no. 3, pages ... at oxfordjournals.org br J.G.F. Francis, The QR Transformation, II The Computer Journal , vol. 4 ... Fiziki , vol.1, no. 4, pages 555 570 1961 . ref The basic idea is to perform a QR decomposition , writing ... in the other order, and iterate. The practical QR algorithm Formally, let A be the matrix ..., somewhat like a two sided QR decomposition. ref name Demmel James W. Demmel , Applied Numerical ... Bau, Numerical Linear Algebra SIAM, 1997 . ref For QR decomposition, the Householder reflectors .... Determining the QR decomposition of an upper Hessenberg matrix costs math 6 n 2 O n math arithmetic ... required for convergence of the QR algorithm. If the original matrix is symmetric matrix symmetric ... Trefethen Determining the QR decomposition of a symmetric tridiagonal matrix costs math O n math operations. ref James M. Ortega and Henry F. Kaiser, The LL sup T sup and QR methods for symmetric tridiagonal ..., to increase separation and accelerate convergence. A typical symmetric QR algorithm isolates each ... as well as robust. The implicit QR algorithm In modern computational practice, ref Golub and Van Loan, chapter 7 ref the QR algorithm is performed in an implicit version which makes the use of multiple ... in the modern implicit version of the procedure no QR decomposition s are explicitly performed ... the term Francis QR step . Interpretation and convergence The QR algorithm can be seen as a more sophisticated ... of the largest eigenvalue. Instead, the QR algorithm works with a complete basis of vectors, using QR decomposition to renormalize and orthogonalize . For a symmetric matrix A , upon ... the columns of Q are the eigenvectors. Other variants One variant of the QR algorithm , the Golub Kahan ... more details
by QR net income Not provided by QR num employees Not provided by QR divisions Bulk, Coal, Intermodal ... qrnational.com.au intl yes QR National is the largest rail freight company in Australia and was formerly ... 2010 when transport and logistics company QR Limited was split into two companies. Queensland Rail ... owned by the Government. QR National owns the balance of the QR business above rail coal and freight ... services. QR National is being privatised by the Government through an initial public offering ... year when QR s three freight business streams coal, bulk and containerised services, were brought ... The company grew out of QR s Coal and Freight Services Group, along with QR subsidiary Interail . In late June 2005, rail operator QR National announced it had acquired the assets of the CRT Group ... a separate operating entity of QR National on July 1, 2005. This was followed in 2007 by the acquisition ... accessdate 2008 03 03 ref QR National commenced the transport of export coal in the New South ... the QR National network covered the entire mainland except the Northern Territory with the operation ... 908expansion.asp title QR completes another phase in its national strategy with coast to coast ... In July 2008 QR National took over the Melbourne Horsham, Victoria Horsham container service for Wimmera ... company called QR National Limited. ref name saleannounce cite web url http www.brisbanetimes.com.au ... into two from July 1, 2010. ref name startsplit QR s coal, freight and infrastructure businesses will be sold as an integrated enterprise, known as QR National Limited with headquarters in Brisbane . The new enterprise will control QR s coal business in Queensland and New South Wales, regional freight ... responsibilities. The QR rollingstock workshops at Redbank, Rockhampton and Townsville are also included ... expected to raise 7 billion. QR employees who will be part of the new entity will have their jobs ... title All Queenslanders invited to share in QR float date December 8, 2009 work Ministerial Media Statements ... more details
In linear algebra , a QR decomposition also called a QR factorization of a matrix mathematics matrix ... triangular matrix . QR decomposition is often used to solve the linear least squares mathematics linear least squares problem, and is the basis for a particular eigenvalue algorithm , the QR algorithm . Definition Square matrix Any real square matrix A may be decomposed as math A QR, , math where ... R and Q . math A QR Q begin bmatrix R 1 0 end bmatrix begin bmatrix Q 1, Q 2 end bmatrix begin bmatrix .... harvtxt Golub Van Loan 1996 loc 5.2 call Q sub 1 sub R sub 1 sub the thin QR factorization of A . If A is of full ... being a left triangular matrix. Computing the QR decomposition There are several methods for actually computing the QR decomposition, such as by means of the Gram Schmidt process , Householder transformation ... matrix Q . The only difference from QR decomposition is the order of these matrices. QR decomposition ... to calculate the QR factorization of an m by n matrix math A math with m n. Q can be used to reflect ... Q t T, math math A QR math is a QR decomposition of math A math . This method has greater numerical ... table gives the number of operations in the k th step of the QR Decomposition by the Householder ... The matrix Q is orthogonal and R is upper triangular, so A QR is the required QR decomposition. Using Givens rotations QR decompositions can also be computed with a series of Givens rotation s. Each rotation ... 1 math . Thus, we have math G 3G 2G 1A Q TA R math , and the QR decomposition is math A QR math . Connection to a determinant or a product of eigenvalues We can use QR decomposition to find the absolute value of the determinant of a square matrix. Suppose a matrix is decomposed as math A QR math . Then we ... of QR decomposition for non square complex matrix and replacing eigenvalues with singular values. Suppose a QR decomposition for a non square matrix A math A Q begin pmatrix R O end pmatrix , qquad Q ... . math In conclusion, QR decomposition can be used efficiently to calculate a product of eigenvalues ... more details
for the 1977 album Quiet Riot Quiet Riot 1977 album Infobox Album See Wikipedia WikiProject Albums Name QR Type studio Artist Quiet Riot Cover Quiet Riot 1988.jpg Released October 1988 Recorded 1988 Genre Heavy metal music Heavy metal , hard rock Length 43 58 Label Columbia Records Pasha CBS Records Producer Spencer Proffer Reviews Allmusic Rating 1 5 Allmusic class album id r16009 review pure url yes link Last album QR III br 1986 This album QR br 1988 Next album Terrified br 1993 QR is an album released in 1988 in music 1988 by the band Quiet Riot . This is the only Quiet Riot album which features Paul Shortino Rough Cutt , The Cutt, Badd Boyz, Shortino on lead vocals. It is also the only Quiet Riot album which does not feature the late Kevin DuBrow on lead vocals or any other then surviving original members. It is also the only Quiet Riot album to feature Sean McNabb on bass. To some fans, it may be labeled QR IV. Reaction to the album at the time was tepid, but did manage to attract a bit more interest than the previous album and any that would follow . Paul Shortino and Sean McNabb later played together on Rough Cutt s Sneak Peek EP. Track listing Stay with Me Tonight 4 40 Callin the Shots 4 41 Run to You 4 38 I m Fallin 4 17 King of the Hill 4 24 The Joker 3 55 Lunar Obsession 1 44 Don t Wanna Be Your Fool 5 02 Coppin a Feel 3 44 In a Rush 2 38 Empty Promises 4 26 Chart performance class wikitable sortable Chart 1988 Peak br position Total br weeks align left U.S. Billboard Hot 200 ref http www.billboard.com ref align center 119 align center 11 Credits Quiet Riot Paul Shortino lead vocals Carlos Cavazo guitars Sean McNabb bass Frankie Banali drums Additional musicians Jimmy Waldo keyboards Production Spencer Proffer producer References Reflist Quiet Riot DEFAULTSORT Quiet Riot 1988 Album Category 1988 albums Category Quiet Riot albums 1980s metal album stub it Quiet Riot 1988 ... more details
Infobox Album See Wikipedia WikiProject Albums Name QR III Type studio Artist Quiet Riot Cover Quiet Riot Quiet Riot 3 f.jpg Released July 1986 Recorded 1986 Genre Heavy metal music Heavy metal , glam metal , album oriented rock Length 42 09 Label Pasha Records Pasha Producer Spencer Proffer , John Purdell Reviews Allmusic Rating 2 5 Allmusic class album id r16008 pure url yes link Kerrang Rating 3 5 August 1986 Last album Condition Critical br 1984 This album QR III br 1986 Next album QR album QR br 1988 QR III is a studio album released by United States American heavy metal music heavy metal band Quiet Riot . The name of this recording is short for Quiet Riot III , and was released in 1986 in music 1986 . Despite the title, this is actually the band s fifth album however it was on their third major label worldwide release. Following the massive success of Metal Health and the more modest reception of Condition Critical which failed to duplicate Metal Health s success, but at least did go top 20 and receive a platinum certification , QRIII represents Quiet Riots final plunge away from stardom. The album only reached 32 on the US charts and has yet to achieve any certification at all. The lead single, The Wild And The Young , is a stadium hymn to the energy of youth. Its accompanying video painted an Orwellian picture of the future, where totalitarian militarists fought to wipe out rock and roll a reference to the Senate hearings concerning explicit language in heavy metal songs. Track listing Main Attraction 4 43 DuBrow, Cavazo, Wright, Banali, Proffer, Purdell The Wild and the Young 3 37 DuBrow, Cavazo, Wright, Banali, Proffer Twilight Hotel 4 35 DuBrow, Cavazo, Wright, Banali, Proffer Down and Dirty 3 15 DuBrow, Cavazo, Wright, Banali Rise or Fall 4 01 DuBrow, Cavazo, Wright, Banali Put Up or Shut Up 4 07 DuBrow, Cavazo, Wright, Banali Still of the Night 4 42 DuBrow ... Reflist Quiet Riot DEFAULTSORT Qr 3 Category 1986 albums Category Quiet Riot albums Category Albums ... more details
Summary Information Description The new button operated doors being retro fitted to the QR EMU fleet Source I Davd Haines created this work entirely by myself. Date 31 03 2010 Author David Haines other versions Licensing PD self date March 2010 ... more details
Summary Information Description Retrofitted button operated doors on QR EMU Source I David Haines created this work entirely by myself. Date 12th of April 2010 Author David Haines other versions Licensing PD self date April 2010 ... more details
Use dmy dates date March 2011 File QR National Be part of something big .jpg thumb The QR National s Be part ... the government owned passenger operator Queensland Rail and the freight operator QR National , the latter ... s core passenger service responsibilities, and formed into a new company called QR National ... work Media Release date 8 December 2009 title QR chair and CEO welcome sale decision ... date 15 April 2010 publisher The Australian ref QR s coal, freight and infrastructure businesses will be sold as an integrated enterprise, known as QR National Limited with headquarters in Brisbane . The new enterprise will control QR s coal business in Queensland and New South Wales, regional ... , as well as network control responsibilities. The QR rollingstock workshops at Redbank, Rockhampton ... title QR National float surprises market first Sue last Lannin date 22 November 2010 ref with the sale raising 4.6 billion. QR employees who will be part of the new entity will have their jobs ... invited to share in QR float date 8 December 2009 work Ministerial Media Statements publisher ... Group and headed by former NSW premier Nick Greiner , announced their intention to buy QR s coal ... QR s trains and freight businesses. ref name offer4billion cite web url http news.smh.com.au breaking news national mining firms offer 485b for qr assets 20100526 wbuj.html title Mining firms offer 4.85b for QR assets author Associated Press date 26 May 2010 publisher The Sydney Morning Herald ... stage. ref name offer4billion QR chief executive Lance Hockridge rejected the bid in June 2010 ... cite web url http nqr.farmonline.com.au news state agribusiness and general general qr boss slams miners bid 1847310.aspx author The Australian Financial Review title QR boss slams miners bid date 2 June 2010 publisher North Queensland Register ref The consortium increased their bid for QR National ... QR sale first Melinda last Howells url http www.abc.net.au news stories 2010 08 10 2978823.htm agency ... more details
Infobox Planet width 25em bgcolour FFFFC0 apsis name 11436 1969 QR symbol image caption discovery yes discovery ref ref name MPC cite web url http www.cfa.harvard.edu iau lists NumberedMPs010001.html title Discovery Circumstances Numbered Minor Planets 10001 15000 accessdate December 7, 2008 publisher IAU Minor Planet Center ref discoverer Lubo Kohoutek discovery site Hamburg Bergedorf Observatory discovered August 22, 1969 designations yes mp name 11436 1969 QR alt names 1988 DP mp category main belt orbit ref ref cite web url http hamilton.dm.unipi.it astdys index.php?pc 1.1.0&n 11436 title 11436 1969QR accessdate December 16, 2008 work AstDyS publisher University of Pisa location Italy ref epoch November 30, 2008 aphelion 2.5412 Astronomical Unit AU perihelion 1.9079 AU semimajor 2.22458 AU eccentricity 0.142344 period 1211.91 day d avg speed inclination 7.353 asc node 239.596 mean anomaly 325.17 Degree angle arg peri 55.675 satellites physical characteristics yes dimensions mass density surface grav escape velocity sidereal day axial tilt pole ecliptic lat pole ecliptic lon albedo temperatures temp name1 mean temp 1 max temp 1 temp name2 max temp 2 spectral type abs magnitude 14.153 rotation 2.65 0.24 hour h ref cite journal url http www.sciencedirect.com science? ob ArticleURL& udi B6V6T 4G9GNMH 1& user 10& rdoc 1& fmt & orig search& sort d&view c& acct C000050221& version 1& urlVersion 0& userid 10&md5 5bcf44985129d7e418e7099f4e8e172e author Sz kely et al. title CCD photometry of 23 minor planets journal Planetary and Space Science volume 53 issue 9 pages 925 936 year 2005 format abstact doi 10.1016 j.pss.2005.04.006 last2 Kiss first2 L last3 Szabo first3 G last4 Sarneczky ... astro ph 0504462 web preprint ref 11436 1969 QR is an asteroid discovered by Lubo Kohoutek at Hamburg ... 1969 QR MinorPlanets Navigator 11435 1931 UB 11437 1971 SB MinorPlanets Footer DEFAULTSORT 1969 QR Category Asteroids Category Main Belt asteroids Category Astronomical objects discovered in 1969 ... more details
QR National electric locomotives are used by QR National which is the largest rail freight company in Australia and is owned by the Queensland Government . Early in 1978, discussions were commenced on possible Railway electrification system electrification of the Blackwater, Queensland Blackwater and Goonyella railway line Goonyella coal networks. This was due to an expected increase in coal traffic across the networks, ageing diesel electric locomotive fleet and the increase in diesel fuel costs. By the early part of 1983, a decision was made to electrify the networks and by early 1984 contracts were already starting to be let for the new locomotives and other works for the project. The decision ... cite journal author QR year 1984 month August title Fact Sheet No.1 August, 1984 Everything you should ... journal author QR year 1984 month August title Fact Sheet No.1 August, 1984 Everything you should ... cite journal author QR year 1986 month February title Fact Sheet No. 9 Main Line Electrification ... by late 1986. ref name Finish Dates cite journal author QR year 1984 month September title Fact Sheet ... Engineering and ASEA Walkers had extensive knowledge of the building rollingstock for QR. ASEA Walkers were at the time building suburban passenger rollingstock for QR. Commonwealth Engineering had built both locomotives and general rollingstock for QR. Train configurations in both systems at the time .... 3100 and 3200 Class locomotives ref name 3100 Class cite journal author QR year 1985 month June July ... at Commonwealth Engineering s plant in Brisbane. Bodies Bodies of these locomotives differed from QR ... for each motor is rated at 500 Kw whereas those of QR s most powerful diesel electric locomotives ... rolled off the production line 26th may 1986. ref name 3100 Class First Loco cite journal author QR ... Queensland. ref name 3500 Class First Loco cite journal author QR year 1986 month May title Fact ... the 3100 class have two drive cabs. The bodies of these locomotives differed from QR s diesel electric ... more details
Image Nissan QR25DE Engine.JPG 200px thumb QR25DE The QR family of straight 4 piston engine s by Nissan were introduced in 2000 and range from 2.0 L to 2.5 L in displacement. These motors are aluminum, dual overhead camshaft DOHC , four valve designs with variable valve timing and optional fuel injection Direct injection direct injection . QR20DE The 2.0 L 1998 cc QR20DE produces 147 hp 110 kW and 148 ft lbf 200 N m The bore is 89 mm with a stroke of 80.3 mm and a compression ratio of 9.9 1. http www.sae.org automag globalvehicles 06 2001 The QR20DE was replaced with the MR20DE. Vehicle applications 2001 2007 Nissan X Trail T30 140 hp 2001 2007 Nissan Primera P12 2002 present Nissan Serena C24, 145 hp 108 kW 2003 2008 Nissan Teana J31, 145 hp 108 kW 2001 2005 Nissan Wingroad Y11 2002 2005 Nissan Avenir W11 QR20DD The QR20DD is similar to the QR20DE but features NEO Fuel injection Direct injection direct injection to improve fuel economy and to reduce emissions. http www.nissan global.com GCC Japan NEWS 20000727 0e.html It produces convert 150 hp abbr on . Vehicle applications 2000 2004 Nissan Bluebird Sylphy QR25DE The QR25DE is a 2.5 L 2488 cc variant built in Decherd, TN with cast steel connecting rods, a steel timing chain, counter rotating balance shafts, and an aluminum intake manifold. The engine bore is 89 mm with a stroke of 100 mm and a compression ratio of 9.5 1. http www.nissannews.com nissan 2006vehicles altima specs.shtml Output is rated 175 hp 130 kW at 6000 rpm with 180 ft lbf 244 N m of torque at 4000 rpm in the Altima 2.5 and Sentra SE R models. Altimas that are PZEV compliant create convert 170 hp abbr on and convert 175 ft.lbf N.m abbr on of torque ... kit for the 1st gen QR will not work. Revised cam shaft profile. Reinforced connecting rods. Reduced ... Forum for both B15 and B16 Sentras. Category Nissan engines QR ja QR ... more details
unreferenced date December 2009 Chicago B. & Q.R. Co. v. Krayenbuhl 1902 Case citation United States 65 Neb. 899, 91 N.W. 880. was a case that established negligent liability on a railroad company. The appellant maintained a Turntable rail railway turntable a rotating platform with a track for turning a locomotive near a publicly traveled path. The appellee, a 4 year old child of the Krayenbuhl family, discovered that the turntable was unlocked, climbed on it, and while playing on it with a group of children got his foot caught between the rails, which severed it at the ankle joint. The Supreme Court of Nebraska held that it was negligent for Chicago, Burlington and Quincy Railroad not to keep the turntable locked and guarded. They noted that the business of railroading is facilitated by the use of turntables, so it would go against the public good to require the appellant to invest so heavily in safeguards that it interfered with appellant s ability to use the turntables for their intended, beneficial use. However, the burden of keeping the turntable locked was so small that the danger of not doing so outweighed the burden. See also Chicago, B. & Q. R. Co. v. Chicago DEFAULTSORT Chicago B. & Q.R. Co. V. Krayenbuhl Category 1902 in United States case law Category Legal articles without infoboxes Category Chicago, Burlington and Quincy Railroad Category Nebraska Supreme Court Category Rail infrastructure in the United States Category Railway turntables Category Industrial buildings and structures in the United States ... more details
Summary Non free use rationale Article Public float of QR National Description QR National Be part of something big poster. Source http qrnshareoffer.com.au Portion Cropped. Low resolution Yes. Purpose For critical commentary. Replaceability No. other information Licensing Non free poster ... more details
Summary Information Description Front of QR National C40aci 5009 at UGL Source I MikeyAus069 created this work entirely by myself. Date 08 09 2008 Author MikeyAus069 other versions Licensing self cc by sa 3.0 GFDL migration redundant ... more details
Summary Ascot Railway Station in Ascot, Queensland . Taken by User Kiwifruitboi kiwifruitboi 16 July 2006 User Kiwifruitboi Kiwifruitboi 07 32, 16 July 2006 UTC Licensing GFDL migration relicense ... more details
Summary Doomben Railway Station in Ascot, Queensland . Taken by User Kiwifruitboi kiwifruitboi 16 July 2006 User Kiwifruitboi Kiwifruitboi 07 39, 16 July 2006 UTC Licensing GFDL migration relicense ... more details
Summary Information Description Citytrain unit 242 pulls into Taringa Station on an afternoon run on the Ipswich Line. Source I David Haines created this work entirely by myself. Date 18 03 2010 Author David Haines other versions Licensing PD self date March 2010 ... more details
In quantum mechanics , and especially quantum information processing , the entropy exchange of a quantum operation math phi , math acting on the density matrix math rho Q , math of a system math Q , math is defined as math S rho, phi equiv S Q ,R S rho QR math where math S rho QR , math is the von Neumann entropy of the system math Q , math and a fictitious Purification of quantum state purifying auxiliary system math R , math after they are operated on by math phi , math . Here, math rho QR QR rangle langle QR quad math , math mathrm Tr R rho QR rho Q quad math , and math rho QR phi rho QR quad math . References Nielsen, Michael A. and Isaac L. Chuang 2000 . Quantum Computation and Quantum Information , Cambridge University Press, ISBN 0 521 63503 9 Category Quantum information science Quantum stub ... more details
QRC may refer to QRC is the Q code for What is your true bearing? Queer Resource Center A name commonly given to LGBT student centers on college campuses QR Code Quick Response Code QR Code disambig ... more details
Encyclopedia
top
