Infobox OS name RocksClusterDistribution logo Image rocks logo.png 200px screenshot caption developer ... license Various working state in development website http www.rocksclusters.org RocksClusterDistribution originally called NPACI Rocks is a Linux distribution intended for high performance computing Cluster computing clusters . It was started by National Partnership for Advanced Computational Infrastructure ... www.rocksclusters.org wordpress ?page id 57 title About RocksCluster publisher RocksClusterDistribution ... Category Cluster computing Category Parallel computing Category 2000 introductions es Rocks Clusters gl RocksCluster it RocksClusterDistribution ... 0721623 title Award Abstract 0721623 SDCI NMI Improvement The RocksCluster Toolkit and Extensions to Build User Defined Cyberenvironments date August 31, 2007 ref Rocks was initially based on the Red Hat Linux distribution, however modern versions of Rocks are now based on CentOS , with a modified ... 16, 2004 title SDSC Enhances RocksCluster Management Toolkit publisher Grid Today accessdate 2007 ... cite web url http www.rocksclusters.org rocks register date October 10, 2010 title RocksCluster Register ref The largest registered academic cluster, having 8632 CPUs, is http grid.fzk.de GridKa .... Rocks includes many tools such as Message Passing Interface MPI which are not part of CentOS but are integral components that make a group of computers into a cluster. Installations can be customized ..., the Java Sun Java roll, and the Ganglia software Ganglia roll. Since its initial release, Rocks has become a widely used cluster operating system, for academic, government, and commercial organizations ... systems, as well as being used for courses in cluster design. This easy scalability was a major goal in the development of Rocks, both for the researchers involved ref name RocksAbout , and for the NSF Broader impact mirrors intellectual merit, and specifically lies in Rocks new capabilities ... more details
wiktionary cluster A cluster is a small group or bunch of something. In science Cluster physics , a small group of atoms or molecules Cluster chemistry , an array of bound atoms intermediate in character between a molecule and a solid Cluster sampling , a sampling technique used when natural groupings are evident in a statistical population Cluster analysis , a technique for statistical data analysis Consonant cluster , in linguistics In astrophysics Star cluster , referring to both open and globular clusters Open cluster , a spherical collection of stars that orbits a galaxy in the galactic plane Globular cluster , a spherical collection of stars whose orbit is either partially or completely ..., composed of many galaxy clusters Cluster mission , a European Space Agency mission to study the magnetosphere In biology and health sciences Cancer cluster , in biomedicine, an occurrence of a greater than expected number of cancer cases Cluster headache , a neurological disease that involves an immense degree of pain Cluster of differentiation , protocol used for the identification and investigation of cell surface molecules present on white blood cells. Winter cluster , in beekeeping, a well defined cluster of honey bees in cold temperatures Cluster epidemiology , a grouping of cases of disease Genetic cluster , a group of genes or proteins, or metabolites whose expression or concentration is similar across a range of conditions In computing Cluster computing , a group of loosely coupled computers that work together closely Data cluster , a group of disk sectors used in a File Allocation Table In music Tone cluster , a musical chord comprising at least three consecutive tones in a scale Cluster band , a German rock band Cluster Italian musical group , an a cappella jazz fusion group from Genoa, Italy Cluster album Cluster album , the 1971 eponymous album by the band ClusterCluster , a track from the album Ben Bu Sarkiyi Sana Yazdim by Cem Adrian Cluster One , the first track ... more details
The phrase T distribution may refer to Student s t test in univariate statistics, Student s t distribution in univariate probability theory, Hotelling s T square distribution in multivariate statistics. Multivariate Student distribution . disambig Category Probability distributions ... more details
wiktionarypar distribution tocright Distribution may refer to In mathematics, science, and technology In mathematics Distribution mathematics , generalized functions used to formulate solutions of partial differential equations Probability distribution , the probability of a particular values or value range of a variable Cumulative distribution function , in which the probability of a value is a function of that value Frequency distribution , a list of the values recorded in a sample Inner distribution and outer distribution , in coding theory Distribution differential geometry , a subset of the tangent ... state space Distribution of terms , a situation in which all members of a category are accounted ... elementary algebra In science Complementary distribution , in linguistics, a relationship between elements found in opposite environments Distribution pharmacology , the transfer of a drug within the body Distribution function , in physics, the number of particles per unit volume in phase space Population distribution , the geographical area in which a species lives Spectral power distribution , in color science, the power per unit area per unit wavelength of an illumination Trip distribution , part ... distribution , the final stage in the delivery of electricity Electronic brakeforce distribution , an automotive ... , the coordinated use of physically distributed computers for tasks or storage Software distribution, a bundle of a specific software already compiled and configured Linux distribution , one of several distributions built on the Linux kernel Distribution concurrency , the projection operator in a history monoid, a representation of the histories of concurrent computer processes Key distribution center , part of a cryptosystem intended to reduce the risks inherent in exchanging keys Content distribution , publishing and web design as method to provide information Digital distribution , publishing media digitally Distribution of elements in the distributed element model of electric circuits ... more details
wiktionary on the rocks On the rocks may refer to On the rocks , a phrase describing a drink served over ice cube s Music On the Rocks album On the Rocks album , an album by the Byron Band On the Rocks band , a British Dutch Brazilian rock band Other media On the Rocks comic On the Rocks comic , now known as Wally and Osborne , a webcomic by Tyler Martin On the Rocks XM , a radio station provided by XM Satellite Radio disambiguation de On the rocks fr On the rocks it On the rocks ... more details
low, applications ClusterKnoppix , based on Knoppix Kerrighed RocksClusterDistribution Scyld operating ... cluster Currently there are a number of Linux distribution s, and at least one BSD , that are designed ... of operating systems and other software for a Beowulf Cluster can be automated using software, Open Source Cluster Application Resources OSCAR for example. OSCAR installs on top of a standard installation of a supported Linux distribution on a cluster s head node. See also Portal Free software Alewife ...expert date June 2011 Refimprove date June 2011 file Beowulf cluster the borg.jpg thumb The Borg, a 52 node Beowulf cluster used by the McGill University pulsar group to search for pulsations from binary pulsars A Beowulf cluster is a computer cluster of what are normally identical, commodity grade computers ... processing to be shared among them. The result is a high performance parallel computing cluster from ... piece of software that defines a cluster as a Beowulf. Beowulf clusters normally run a Unix like operating system, such as Berkeley Software Distribution BSD , Linux , or Solaris ... computing . Development file BSC Beowulf cluster.JPG thumb Detail of the first Beowulf cluster at Barcelona Supercomputing Center A description of the Beowulf cluster, from the original how to , which ... node controls the whole cluster and serves files to the client nodes. It is also the cluster s console ... the server tells it. One of the main differences between Beowulf and a Cluster of Workstations ... terminal. Beowulf nodes can be thought of as a CPU memory package which can be plugged in to the cluster ... using standard Linux distribution without any additional software. If you have two networked ... and ClusterKnoppix KestrelHPC A cluster can be set up by using Knoppix bootable CDs in combination ..., to form a Beowulf cluster using all CPUs and RAM in the cluster. A Beowulf cluster is scalable ... SLURM Stone Soupercomputer Sun Grid Engine References Reflist Bibliography Beowulf Cluster Computing ... more details
section. The distribution of these three components is approximately the same in the cluster ... components of a galaxy cluster. They are tabulated below class wikitable Name of the components Mass ... more details
distribution of spiral galaxies in the Virgo Cluster from the Tully Fisher relation journal Astrophysical ...Galaxy cluster name Virgo Cluster image Image Virgngc.jpg 250 px epoch J2000 ra RA 12 27 ref name ned cite web title NASA IPAC Extragalactic Database work Results for Virgo Cluster url http nedwww.ipac.caltech.edu ... Cluster is a galaxy clustercluster of galaxies whose center is 1 E22 m 53.8 0.3 light year Mly 16.5 ..., Davi title The ACS Virgo Cluster Survey. XIII. SBF Distance Catalog and the Three dimensional Structure of the Virgo Cluster journal The Astrophysical Journal year 2007 volume 655 issue 1 pages 144 162 ..., ref See http astronomy.swin.edu.au cosmos V Virgo Cluster Virgo Cluster . ref the cluster forms the heart ... that its mass is 1.2 e 15 solar mass M sub sub out to 8 degrees of the cluster s center or a radius ..., T. Balkowski, C. title Structure, mass and distance of the Virgo cluster from a Tolman Bondi model .....770F doi 10.1051 0004 6361 20010833 arxiv astro ph 0106261 ref Many of the brighter galaxies in this cluster ... pointed to me by Mr. M chain. see http www.seds.org messier Mdes dm091.html M91 . ref The cluster ... galaxies of the cluster are visible with a small telescope. The cluster is a fairly heterogeneous ... Cluster Survey journal The Astrophysical Journal volume 153 issue 1 pages 223 242 origyear year ... , it is believed that the spirals of the cluster are distributed in an oblong prolate spheroid prolate ... The elliptical galaxies are more centrally concentrated than the spiral galaxies. The cluster is an aggregrate ... level5 Binggeli frames.html The Virgo Super Cluster home of M87 with frames ref The large mass of the cluster is indicated by the high peculiar velocity peculiar velocities of many of its galaxies, sometimes as high as 1,600 kilometre km second s with respect to the cluster s center. The Virgo cluster lies within the Virgo Supercluster , and its gravitational effects slow down the nearby galaxies. The large mass of the cluster has the effect of slowing down the recession of the Local Group ... more details
orphan date July 2010 Cluster labeling is closely related to the concept of text clustering . This process ... Clustering and Hierarchical Clustering . For example, a cluster of documents that talks about ... by examining the contents of the documents in a cluster. A good label not only summarizes the central concept of a cluster but also uniquely differentiates it from other clusters in the collection. Differential Cluster Labeling Differential cluster labeling labels a cluster by comparing the terms in one cluster with the terms occurring in other clusters. The techniques used for feature ... feature selection , can also be applied to differential cluster labeling. Terms having very low frequency are not the best in representing the whole cluster and can be omitted in labeling a cluster ... cluster labeling ref Manning, Christopher D., Prabhakar Raghavan, and Hinrich Schutze. Introduction to Information Retrieval . Cambridge Cambridge UP, 2008. Cluster Labeling . Stanford ... cluster labeling 1.html . ref . Mutual Information Main Mutual information In the fields of probability ... joint probability distribution of the two variables, p sub 1 sub x is the probability distribution of X, and p sub 2 sub y is the probability distribution of Y. In the case of cluster labeling, the variable X is associated with membership in a cluster, and the variable Y is associated with the presence ... of a particular cluster, and p C 0 represents the probability that it isn t. Similarly, p T 1 represents ... the probability that it doesn t. The joint probability joint probability distribution function p ... that a document isn t a member of cluster c and doesn t contain term t p 0, 1 is the probability that a document isn t a member of cluster c and does contain term t and so on. Example The following example calculates the mutual information between the cluster commerce and the term tariff class ... C 1 of documents in the cluster total number of documents 60 200 510,260 260 510,260 P C 0 of documents ... more details
Cluster II may refer to Cluster II spacecraft , a European Space Agency mission Cluster II album , an album by German electronic music group Cluster disambig ... more details
globular cluster s are tight groups of hundreds of thousands of very old stars which are gravitation ... influence of giant molecular cloud s as they move through the galaxy , but cluster ... to as a moving group . Star clusters visible to the naked eye include Pleiades star cluster Pleiades , Hyades star cluster Hyades and the Beehive Cluster . Globular cluster Main Globular cluster Globular ... Shapley was able to estimate the Sun s distance from the galactic centre based on the distribution ... 22 title ESO publisher Young and Exotic Stellar Zoo ESO s Telescopes Uncover Super Star Cluster in the Milky ... disrupted by the Milky Way, as seems to be the case for the globular cluster Globular Cluster M79 ... the telescopic age. The best known globular cluster in the northern hemisphere is Great Globular Cluster in Hercules M13 modestly called the Great Globular Cluster in Hercules . Intermediate forms In 2005, astronomers discovered a completely new type of star cluster in the Andromeda Galaxy, which ... somewhere between a low dark matter globular cluster and a dark matter dominated dwarf spheroidal ... clusters. ref name extended Open clusters Main Open cluster Image M45 filip.jpg thumb 250px The Pleiades star cluster Pleiades , an open cluster dominated by hot blue stars surrounded by reflection ... cluster for example. ref Archinal, Brent A., Hynes, Steven J. 2003. Star Clusters , Willmann Bell ... between cluster members can also result in the ejection of stars, a process known as evaporation . The most prominent open clusters are the Pleiades star cluster Pleiades and Hyades star cluster Hyades in Taurus constellation Taurus . The Double Cluster of NGC 869 h NGC 884 Chi Persei can also be prominent ... tend to have dispersed before these stars die. Super star cluster Main Super star cluster Super star cluster SSC is a very large region of star formation thought to be the precursor of a globular cluster. Embedded cluster Embedded clusters EC are stellar clusters that are partially or fully ... more details
Galaxy cluster name Bullet Cluster image Image Bullet cluster.jpg 300px caption X ray photo by Chandra ... for the Hottest Known Cluster of Galaxies journal Astrophysical Journal Letters volume 496 pages ...?objname Bullet Cluster title NED results for object Bullet Cluster publisher NASA Extragalactic ... . ref name Tucker1998 other names 1E 0657 56, 1E 0657 558 The Bullet Cluster 1E 0657 558 consists of two ... Cluster refers to the smaller subcluster, moving away from the larger one. It is at a co moving radial ... Cluster are claimed to provide the best evidence to date for the existence of dark matter ... matter self interaction cross section from the merging galaxy cluster 1E0657 56 issue 2 pages ... of the gravitational lensing results is disputed, see Bullet Cluster Alternative interpretations below . Observations of other galaxy cluster collisions, such as MACS J0025.4 1222 , also show significant ... The major components of the cluster pair star s, gas and the putative dark matter behave differently ..., seen in X ray s, represents most of the mass of the ordinary baryon ic matter in the cluster pair. The gases .... This provides support for the idea that most of the mass in the cluster pair is in the form of collisionless dark matter. The Bullet Cluster is one of the Temperature hottest known galaxy groups ..., which may diverge at temperatures beyond their predicted critical cluster temperature. ref name Tucker1998 Observed from Earth, the subcluster passed through the cluster center 150 Mya unit million years ago creating a bow shaped shock wave located near the right side of the cluster formed as 70 million degree Celsius gas in the sub cluster plowed through 1 E6 K 100 million degree Celsius gas in the main cluster at a speed of about 6 million miles per hour . ref http chandra.harvard.edu photo ... ref http edpsciences usa.org articles aa abs 2002 18 aah3368 aah3368.html The dynamical status of the cluster .... ref name Tucker1998 Significance to dark matter The Bullet Cluster provides the best current evidence ... more details
. year 1933 title On the space distribution of the nebulae in the Coma Cluster journal Annalen v.d. ... of the Coma cluster is believed to be in the form of dark matter . However, the distribution of dark ... David Merritt title The Distribution of Dark Matter in the Coma Cluster journal The Astrophysical ...about the cluster of galaxies named the Coma Cluster the star cluster Coma star cluster Galaxy cluster name Coma Cluster image Image Ssc2007 10a1.jpg 290px caption A Sloan Digital Sky Survey Spitzer Space Telescope mosaic of the Coma Cluster in long wavelength infrared red , short wavelength infrared green , and Visible spectrum visible light. The many faint green smudges are dwarf galaxies in the cluster ... Field Guide to X ray Sources work Coma Cluster url http chandra.harvard.edu xray sources coma accessdate ... sources coma title Chandra Field Guide to X ray Sources Coma Cluster date 20080221112444 ref ref name nasafocuscoma cite web title NASA Focus on the Coma Cluster url http imagine.gsfc.nasa.gov docs ... from the Intracluster Medium of the Coma Cluster journal Publications of the Astronomical Society of Japan ... 2009 month May title A weak lensing study of the Coma cluster journal Astronomy and Astrophysics volume ... Abell 1656 ref name NED The Coma Cluster List of Abell clusters Abell 1656 is a large galaxy clustercluster of galaxies that contains over 1,000 identified galaxies. ref name chandra ref name nasafocuscoma Along with the Leo Cluster Abell 1367 , it is one of the two major clusters comprising the Coma ... superc com.html ref It is located in and takes its name from the constellation Coma Berenices . The cluster ... of Astronomy and Astrophysics title Coma Cluster url http eaa.iop.org abstract 0333750888 2600 ..., John S., III title Galaxy aggregates in the Coma cluster journal Monthly Notices of the Royal Astronomical ... astro ph 9801160 bibcode 1998MNRAS.297L..34C ref The cluster is within a few degrees of the north galactic pole on the sky. Most of the galaxies that inhabit the central portion of the Coma Cluster are ellipticals ... more details
2 electron volt keV ref name NED other names Abell catalogue Abell 1060 The Hydra Cluster or Abell 1060 is a Galaxy groups and clusters cluster of galaxies that contains 157 bright galaxy galaxies and can ... ref The cluster spans about ten million light year s and has an unusual high proportion of dark matter . ref http apod.nasa.gov apod ap010416.html The Hydra Cluster of Galaxies Astronomy Picture of the Day ref The cluster is part of the Hydra Centaurus Supercluster located 158 million light years from earth. The cluster s largest galaxies are Elliptical galaxy elliptical galaxies NGC 3309 and NGC ..., three dimensional distribution. ref Cite journal doi 10.1086 166902 last Fitchett first Michael last2 Merritt first2 David author2 link David Merritt title Dynamics of the Hydra I Galaxy Cluster ... http arxiv.org abs 0708.1514 UCD candidates in the Hydra Cluster . ArXiv.org. ApL Letters WikiSky name The Hydra Cluster z 9 Sky 10 36.9 00 27 32 00 508800000 Catalogs Abell 1060 galaxy Category ... more details
Image Collinder 399.jpg frame right Brocchi s Cluster , also known as the Coathanger a conspicuous asterism easily seen with binoculars in the constellation Vulpecula . Collinder 399 Cr ref http www.seds.org messier xtra supp cats.html Cr List of Common Deep Sky Catalogs SEDS ref 399 is a random grouping of stars located in the constellation Vulpecula near the border with Sagitta . Collinder catalog Collinder 399 is known as Al Sufi s Cluster or Brocchi s Cluster . The brighter members of this star cluster form an asterism astronomy asterism also known as the Coathanger . History Before 964, it was first discovered by the Persia n Astronomy astronomer Al Sufi , and described in his Book of Fixed Stars in 964. In the 17th century, it was independently rediscovered by Italian astronomer Giovanni Batista Hodierna Hodierna . In the 1920s, Dalmero Francis Brocchi Brocchi , an amateur astronomer and chart maker for the American Association of Variable Star Observers AAVSO , created a map of this object for use in calibrating photometers. In 1931, Swedish astronomer Per Collinder Collinder listed it in his Collinder catalog catalogue of open clusters . Status The status of this group as a star cluster has changed in recent years. The group was considered to be a cluster for most of the 20th ... stars formed an actual cluster. Several independent studies since 1998 have now determined that this object is not a true cluster at all, but rather just a chance alignment of stars. These recent ... within the cluster easily viewed in one small location of the sky. Catalogue Data Name Collinder ... links http www.seds.org messier xtra ngc brocchi.html Brocchi s Cluster, Collinder 399 SEDS ... galactic clusters and their spatial distribution . Lund Obs. Ann. No. 2 Cragin, Murray Lucyk, James ...& db key AST The Nearby Poor Cluster Collinder 399 . Pub. of the Astronomical Society of the Pacific 82 487 , p. 640 652 Skiff, Brian January, 1998 . Brocchi s Cluster Revealed . Sky and Telescope ... more details
2011 Numbers and distribution Image Star cluster in the Small Magellanic Cloud.jpg thumb left 250px ..., given the age of the cluster and the expected initial mass distribution of the stars. One possible ...dablink Galactic cluster redirects here. See also galaxy groups and clusters File NGC265.jpg right thumb NGC 265 , an open star cluster in the Small Magellanic Cloud An open cluster is a star cluster group ... as well as a loss of cluster members through internal close encounters. ref name Karttunen et al 03 ... cluster s of stars exert a stronger gravitational attraction on their members, and can survive ... it to create an H II region . ref name apj62 Over time, radiation pressure from the cluster ... of stellar evolution . Because the cluster members are of similar age and chemical element ... stars. ref name seds A number of open clusters, such as the Pleiades star cluster Pleiades , Hyades star cluster Hyades or the Alpha Persei Cluster are visible with the naked eye. Some others, such as the Double Cluster , are barely perceptible without instruments, while many more can be seen using binoculars or optical telescope telescopes . The Wild Duck Cluster , M11, is an example ... ESO . The prominent open cluster Pleiades has been recognized as a group of stars since antiquity ... Ptolemy mentions the Beehive Cluster Praesepe , the Double Cluster in Perseus constellation Perseus , and the Ptolemy Cluster , while the Persian astronomer Al Sufi wrote of the IC 2391 Omicron Velorum cluster . ref name moore rees2011 However, it would require the invention of the telescope ... distinct types of clusters, one of which contained thousands of stars in a regular spherical distribution ... ref name basu03 Astronomers dubbed the former globular cluster s, and the latter open clusters ... van Maanen was able to measure the proper motion of stars in part of the Pleiades cluster by comparing ..., cluster stars were found to share a common proper motion through space. By comparing the photographic ... more details
M sub v sub and a variance sup 2 sup . This distribution of globular cluster luminosities is called ... Investigation into the Shape of the Globular cluster Luminosity Distribution journal Astronomical ...Image A Swarm of Ancient Stars GPN 2000 000930.jpg thumb right 300px The Messier 80 globular cluster ... A globular cluster is a sphere spherical collection of star s that orbits a Galactic Center galactic ... of star cluster is derived from the Latin globulus a small sphere. A globular cluster is sometimes ..., contain considerably more stars and are much older than the less dense open cluster galactic, or open cluster s, which are found in the disk. Globular clusters are fairly common there are about .... I. Cluster Detection and Completeleness journal The Astronomical Journal year 2001 volume 122 issue ... of the M87 globular cluster system journal Astrophysical Journal year 1994 volume 422 issue 2 pages ... of globular clusters. ref cite journal last Harris first William E. title Globular cluster systems ... W. Ferguson, Henry C. title The Colors of Dwarf Elliptical Galaxy Globular Cluster Systems, Nuclei ... class wikitable align right Early Globular Cluster Discoveries Cluster name Discovered by Year style ... The first globular cluster discovered was Messier 22 M22 in 1665 by Abraham Ihle, a German amateur ... aperture of early telescope s, individual stars within a globular cluster were not Angular resolution ... the first to use the name globular cluster as their description. ref name boyd2008 The number of globular ... book author Ashman, Keith M. Zepf, Stephen E. title Globular cluster systems year 1998 volume 30 series ... File NGC 7006 HST .jpg left thumb NGC 7006 is a highly concentrated, Class I globular cluster. Of the globular ... asymmetrical distribution was used by Harlow Shapley to make a determination of the overall dimensions of the galaxy. By assuming a roughly spherical distribution of globular clusters around ... dust in the Milky Way diminished the amount of light from a globular cluster that reached the earth ... more details
algorithm represents each cluster by a single mean vector. Distribution models clusters are modeled using statistic distributions, such as multivariate normal distribution s used by the Expectation ...Image Cluster 2.svg thumb The result of a cluster analysis shown as the coloring of the squares into three clusters. Cluster analysis or clustering is the task of assigning a set of objects into groups called clusters so that the objects in the same cluster are more similar in some sense or another to each ... learning , pattern recognition , image analysis , information retrieval , and bioinformatics . Cluster ... by various algorithms that differ significantly in their notion of what constitutes a cluster ... distances among the cluster members, dense areas of the data space, intervals or particular statistical ... data set and intended use of the results. Cluster analysis as such is not an automatic task, but an iterative ... of a cluster varies between algorithms and is one of the many decisions to take when choosing the appropriate algorithm for a particular problem. At first the terminology of a cluster seems obvious ..., and understanding these cluster models is key to understanding the differences between the various algorithms. Typical cluster models include Connectivity models for example hierarchical ... mode clustering , clusters are modeled with both cluster members and relevant attributes. Group models ... as a prototypical form of cluster. Relaxations of the complete connectivity requirement .... Clusterings can be roughly distinguished in hard clustering each object belongs to a cluster or not soft clustering also fuzzy clustering each object belongs to each cluster to a certain degree e.g. a likelihood of belonging to the cluster There are also finer distinctions possible, for example strict partitioning clustering here each object belongs to exactly one cluster strict partitioning clustering with outliers objects can also belong to no cluster, and are considered Anomaly detection ... more details
golden coloured hairs on the thorax , and irregular light and dark gray areas on the abdomen . Cluster flies are typically slow moving. Cluster flies have a widespread distribution. Eight species ...Taxobox name Cluster flies image Pollenia sp Cluster fly 20100718a.jpg image caption Male Pollenia sp. regnum Animal ia phylum Arthropod a classis Insect a ordo Fly Diptera familia Calliphoridae subfamilia Polleniinae genus Pollenia genus authority Jean Baptiste Robineau Desvoidy Robineau Desvoidy , 1830 type species Pollenia rudis Musca rudis ref name MYIA cite journal last Sabrosky first Curtis W. title Family Group Names in Diptera An annotated catalog journal MYIA, The International Journal of the North American Dipterists Society url http www.sel.barc.usda.gov diptera people FCT pdf FGNAMES.pdf volume 10 publisher Backhuys Publishers location Leidan date 1999 accessdate 2008 05 31 ref type species authority Johan Christian Fabricius Fabricius , 1794 subdivision ranks Species subdivision See text The cluster flies are the genus Pollenia in the Calliphoridae blowfly family Calliphoridae. Unlike more familiar blowflies such as the Blue bottle fly bluebottle genus Phormia , they do not present a health hazard because they do not lay eggs in human food. They are strictly parasitic on earthworm s the females lay their eggs near earthworm burrows, and the larvae then infest the worms. However, the flies are a nuisance because when the adults emerge in the late summer or autumn they enter houses to hibernation hibernate , often in large numbers they are difficult to eradicate because they favour inaccessible spaces such as roof and wall cavities. They are often seen on windows of little used rooms. They are also sometimes known as attic flies . The typical cluster fly Pollenia ... www.bioimages.org.uk HTML T9479.HTM Images of some cluster fly species Pollenia amentaria Scopoli ... including Russia species Use dmy dates date February 2011 DEFAULTSORT Cluster Fly Category Calliphoridae ... more details
In chemistry a water cluster is a discrete hydrogen bond ed assembly or cluster chemistry cluster of molecule s of water molecule water . ref cite journal title Water From Clusters to the Bulk author Ralf Ludwig journal Angew. Chem. Int. Ed. year 2001 volume 40 pages 1808 1827 doi 10.1002 1521 3773 20010518 40 10 1808 AID ANIE1808 3.0.CO 2 1 pmid 11385651 issue 10 ref These clusters have been found experimentally or predicted in silico in various forms of water in ice , in crystal lattice s and in bulk liquid water, the simplest one being the water dimer H sub 2 sub O sub 2 sub . Ongoing academic research is important because the realization that water manifests itself as clusters rather than an isotropic collection may help explain many anomalous water characteristics such as its highly unusual density temperature dependence. Water clusters are also implicated in the stabilization of certain supramolecular structures. So little is understood about water clusters in bulk water that it is considered one of the unsolved problems in chemistry . Theoretical Studies In silico structures In silico ... cluster size the oxygen to oxygen distance is found to decrease which is attributed to so called cooperative many body interactions due to a change in charge distribution the H acceptor ... of a cube. Even larger clusters are predicted the fullerene like cluster W sub 28 sub is called ... of an Elusive Discrete Cyclic Water Heptamer to a Bicyclic H2O 7 Cluster author M. H. Mir, J ... cluster equilibrium QCE theory of liquids W sub 8 sub clusters dominate the liquid water bulk phase ... of a W sub 24 sub cluster is invoked. In another model bulk water is built up from a mixture ... Link http www wales.ch.cam.ac.uk CCD.html The Cambridge Cluster Database Includes water clusters ... water clusters explored with ab initio methods . DEFAULTSORT Water Cluster Category Cluster chemistry Category Water chemistry ar de Wassercluster fr Cluster d eau ja ru ... more details
Notability date September 2010 Unreferenced auto yes date December 2009 Cluster lizards are a fictional species of carnivorous reptile on the science fiction series Lexx . These lizards exist on The Cluster in the Light Zone , where they are sometimes used as a means of capital punishment. They often roll themselves into a tire shape when moving, and somewhat resemble large armored centipedes . They are especially fond of eating brain flesh. A female Cluster lizard experiences a form of oestrus once every seven years. At the end of the cycle, she eats her mate. In the series, the character Zev Bellringer Zev , later Xev, becomes half Cluster lizard when she is condemned to be transmogrified into a love slave a rogue Cluster lizard interrupts the process and their DNA is combined. Not only can she roll up and scream like a Cluster lizard, but the lizard DNA gives her the capacity to deal with extended desert conditions. Additionally, Cluster lizards respond to her as they would other Cluster lizards. Lexx Category Lexx Category Fictional lizards Scifi stub ... more details
Ndb Cluster is the distributed database system underlying MySQL Cluster . It can be used independently of a MySQL Server. From the MySQL Server perspective the Ndb Cluster is a Database engine Storage engine for storing tables of rows. From the Ndb Cluster perspective, a MySQL Server instance is an API process connected to the Cluster. Ndb Cluster can concurrently support access from other types of API processes. All API processes can operate on the same tables and data stored in the Ndb Cluster. Standalone Ndb Cluster Ndb Cluster has the following capabilities independent of any attached MySQL Server Persistent, distributed storage of tables with unique or ordered indexes Redo logging, checkpointing, system recovery Primary key, unique key, table scan and ordered index scan Parallel scan execution with pushed down filters Row locks, transactional updates Synchronous data replication within the cluster, automatic failover recovery Automatic connection failover for API processes Standard SQL datatypes including Blobs etc. Storage of data on disk Asynchronous data change triggers mechanism ... Online backup Online upgrade MySQL Cluster Ndb Cluster MySQL Server s MySQL Cluster currently uses the MySQL Server to provide the following capabilities on top of Ndb Cluster SQL parsing optimising ... Ndb Cluster is often configured as a MySQL Cluster An Ndb Cluster with attached MySQL Server processes ... Server use the NDBAPI ref name NdbApiDocs http dev.mysql.com doc ndbapi en index.html The MySQL Cluster API Developer Guide ref C client library to connect to the Ndb Cluster and perform operations. It is currently recommended that at least one MySQL Server is connected to an Ndb Cluster to perform Data Definition Language DDL operations. Limitations Ndb cluster introduces certain limitations ref http dev.mysql.com doc refman 5.5 en mysql cluster limitations.html Known Limitations of MySQL Cluster ... migration to NDB Cluster need to plan for these limitations Does not support prefix indexes only entire ... more details
Infobox album See Wikipedia WikiProject Albums Name Apropos Cluster Type studio Artist Dieter Moebius Moebius and Hans Joachim Roedelius Roedelius Cover Apropos cluster.jpg Released 1991 Recorded 1989 1990 Genre Krautrock br Experimental Music br Electronic music br Ambient Music Length Label Curious Music Producer Chronology Cluster band Cluster Last album Curiosum br 1981 This album Apropos Cluster br 1991 Next album One Hour br 1995 Apropos Cluster is a full length studio album by Dieter Moebius and Hans Joachim Roedelius also known as German electronic music outfit Cluster band Cluster . It was also their first album after an eight year long hiatus. In 1989 Dieter Moebius and Hans Joachim Roedelius reunited to the delight of their fans, recording Apropos Cluster during 1989 and 1990 in Blumau , Austria . The album was released on the Curious Music label in 1991. It was Cluster s first U.S. release. Apropos Cluster is musically and structurally similar to Grosses Wasser though it lacked the rhythmic tracks of the 1979 release, instead comprising a mixture of gentle, ambient pieces in the four shorter tracks followed by the nearly 22 minute long, more experimental title piece. Emmental became the signature track for Cluster. It was included on the 1997 live album First Encounter Tour 1996 and was often performed live by Roedelius at solo concerts during the band s second hiatus. Apropos Cluster was reissued on the Swirldisc Records label on August 23, 1996. Track listing Grenzganger 7 24 Emmental 3 24 Gespiegelt 6 58 Falls 2 57 Apropos Cluster 21 41 Personnel Hans Joachim Roedelius Dieter Moebius Stanislaw Michalik bass on Emmental References Curry, Russ http www.thing.de delektro www eng cluhist.html A Curious History of Cluster Retrieved August 17, 2007. Discogs http www.discogs.com release 232071 Retrieved August 19, 2007. Category 1991 albums Category Cluster albums 1990s electronic album stub ... more details
Image Earth Widening Vault.jpg thumb right Widening of the Earth s Vault oil on canvas, 3 X 4.25 meters 10 X 14 feet , 1987 The Cluster Paintings are a Serial imagery series of painting s created by Nabil Kanso in 1986 1988. They are characterized by Composition visual arts composition s that divide the canvas space into sections reflecting a cluster of irregular shaped Plane geometry planes offering variations of contrasts and viewpoints. These characteristics expanded in later works such as the America 500 Years America and Living Memory paintings Living Memories series. ref The Cluster Paintings Cluster Matter Floating in Spaces of Shades , pp. 82 102 in Nabil Kanso the Split of Life Paintings, NEV Editions, Atlanta 1996. ref ref http kansoamerica.com text.html Notes on the Cluster paintings ref See also The Floating Shadows triptych References references External links http nabilkanso.com CLUSTER.html The Cluster paintings Painting stub DEFAULTSORT Cluster Paintings Category Modern paintings Category War art Category Painting series Category 1980s paintings ... more details
A Cluster diagram or clustering diagram is a general type of diagram , which represents some kind of cluster. A cluster in general is a group or bunch of several discrete items that are close to each other. ref Lemma http en.wiktionary.org wiki clustercluster at Wiktionary . Retrieved Sept 18, 2008. ref The cluster diagram figures a cluster, such as a network diagram figures a computer network network ... arranged kind of cluster diagram. A cluster diagram is a Mesh networking mesh kind of network diagram ... diagram a Tree and hypertree networks tree type of network diagram. Types of cluster diagrams Specific types of cluster diagrams are br Gallery Image Skyscrapercompare.svg Comparison diagram of sky scraper Image M3 color magnitude diagram it.jpg Astronomic cluster diagram of the Messier 3 globular cluster Image Biositemap iTools NCBC.png Biositemap diagram Image EvaporacaoDeNuvem.png Cluster chart in brainstorming Gallery br In architecture a comparison diagram is sometimes called a cluster ... Cluster Diagram at skyscrapernews.com. Retrieved 18 september 2008. Comment This illustration depicts a comparison diagram , but yet is called a cluster diagram . ref In astronomy diagrams of star cluster , galaxy groups and clusters or globular cluster . In brainstorming a cluster diagrams is also ... www.enchantedlearning.com graphicorganizers cloud Cluster Cloud Diagrams at enchantedlearning.com. 2003 2009. Accessed Nov 17, 2009. ref Also, the term cluster diagrams is sometimes used as synonym of mind map s . ref http www.brainstorming that works.com cluster diagrams.html Cluster diagrams are another ... Image IEEE 802.15.4 cluster tree.png Computer network diagram Image WorldWideWebAroundWikipedia.png ... , file system s and internet can be considered cluster diagrams. In information visualization specific ... in the shape of a cluster diagram. In quantum field theory for example, according to Crawford 1998 , the called coupled cluster diagram is a simple diagrammatic formalism popularized by Kucharski and Bartlett ... more details
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