Unreferenced date July 2009 Expert subject Computer science date February 2009 In computer science , array access analysis is a compiler analysis used to decide the read and write access patterns to elements or portions of arrays. The major data type manipulated in scientific programs is the array. The define use analysis on a whole array is insufficient for aggressive compiler optimization s such as auto parallelization and array privatization . Array access analysis aims to obtain the knowledge of which portions or even which elements of the array are accessed by a given code segment basic block , Control flow Loops loop , or even at the Subroutine procedure level . Array access analysis can be largely categorized into exact or reference list based and summary methods for different tradeoffs of accuracy and complexity. Exact methods are precise but very costly in terms of computation and space storage, while summary methods are approximate but can be computed quickly and economically. Typical exact array access analysis include linearization and atom images . Summary methods can be further divided into array sections , bounded regular sections using triplet notation , linear constraint methods such as data access descriptors and arrayregionanalysis . References reflist prog lang stub Category Compiler construction Category Static program analysis ... more details
In mathematical analysis , the word region usually refers to a subset of math R n math that is open set open in the standard Euclidean topology , connected set connected and empty set non empty . A closed region is sometimes defined to be the closure topology closure of a region. Region and closed regions are often used as domains of functions or differential equations. Mathanalysis stub Category Mathematical analysis Category Topology ... more details
An array is a systematic arrangement of objects, usually in rows and columns. Specifically, it may refer ... at run time, including Array data structure , an arrangement of items at equally spaced addresses in computer memory Array data type , used in a programming language to specify a variable that can be indexed Associative array , an abstract data structure model that generalizes arrays to arbitrary indices or various kinds of the above, such as Bit array or bit vector Dynamic array , allocated at run time Parallel array of records, with each field stored as a separate array Sparse array , with most elements omitted, to store a sparse matrix Variable length array Jagged array , where the rows have different lengths individually or various related concepts Vector processor Array processor , a computer to process arrays of data not to be confused with a processor arrayArray programming , using matrix algebra notation in programs not the same as array processing Array slicing , the extraction of sub arrays of an array or also Global Arrays , a library for parallel processing Intel Array Visualizer , a piece of scientific graphics software In mathematics and statistics An array or matrix mathematics e.g. a Monge array , a Costas array A standard array in coding theory In statistics, arrays are a name for some kinds of Category Experimental design Intersection array a concept of category theory The thinned array curse or sparse array curse, a theorem about elecromagnetic waves In technology ... array, such as a phased array , a tower array , etc. A speaker array, used to produce directional Sound Asynchronous array of simple processors Ball grid array , pin grid array , and land grid array , ways to connect integrated circuits Cache Array Routing Protocol CARP Color filter array , placed over an imaging array Disk array , such as the RAID Field emitter array , an electron source Gate array , including a field programmable gate array FPGA Halbach array , an arrangement of magnets ... more details
of software can take to run Economics Agroecosystem analysis Input output model if applied to a region ...Other uses Wiktionary AnalysisanalysisAnalysis is the process of breaking a complexity complex topic ... analysis as a formal concept is a relatively recent development. ref http plato.stanford.edu entries analysisAnalysis ref The word is a transcription of the ancient Greek language Greek analusis ...?term analysis Online Etymology Dictionary ref As a formal concept, the method has variously ... . Applications Chemistry See also Analytical chemistry List of chemical analysis methods The field of chemistry uses analysis in at least three ways to identify the components of a particular chemical compound qualitative analysis , to identify the proportions of components in a mixture quantitative analysis , and to break down chemical process es and examine chemical reaction s between chemical element elements of chemical matter matter . For an example of its use, analysis of the concentration ... activation analysis neutron activation to develop discrete measurements within vast samples. A matrix chemical analysis matrix can have a considerable effect on the way a chemical analysis is conducted and the quality of its results. Analysis can be done manually or with a analyser device . Chemical analysis is an important element of national security among the great power major world powers with Materials ... See also Isotope analysis Isotope geochemistry Chemists can use isotope s to assist analysts with issues ... of environmental radioactivity . Business Financial statement analysis the analysis of the accounts and the economic prospects of a firm Fundamental analysis a stock valuation method that uses financial analysis Technical analysis the study of price action in securities markets in order to forecast future prices Business analysis involves identifying the needs and determining the solutions to business problems Price analysis involves the breakdown of a price to a unit figure Market analysis ... more details
memory region, it may be expensive or impossible to find contiguous space for a large dynamic array ...File Dynamic array.svg thumb Several values are inserted at the end of a dynamic array using geometric ... size and capacity of the final array are shown. In computer science , a dynamic array , growable array , resizable array , dynamic table , or array list is a random access , variable size list ... in many modern mainstream programming languages. A dynamic array is not the same thing as a dynamic memory allocation dynamically allocated array , which is a fixed size Array data structure array whose size is fixed when the array is allocated, although a dynamic array may use such a fixed size array ... class from OpenJDK 6 . ref Bounded size dynamic arrays and capacity The simplest dynamic array is constructed by allocating a fixed size array and then dividing it into two parts the first stores the elements of the dynamic array and the second is reserved, or unused. We can then add or remove elements at the end of the dynamic array in constant time by using the reserved space, until this space is completely consumed. The number of elements used by the dynamic array contents is its logical size or size , while the size of the underlying array is called the dynamic array s capacity , which ..., the fixed size data structure suffices. This may be short sighted, when problems with the array filling up turn up later. It is best to put resize code into any array, to respond to new conditions ... array is an expensive task, typically involving copying the entire contents of the array. Geometric ..., the capacities form a geometric progression . Expanding the array by any constant proportion ensures ... Amortized analysis amortized constant time. The value of this proportion a leads to a time space ..., Analysis and Internet Examples publisher Wiley year 2002 contribution 1.5.2 Analyzing an Extendable Array Implementation pages 39 41 . ref ref name clrs Introduction to Algorithms chapter 17.4 Dynamic ... more details
Orphan date February 2009 An extrachromosomal array is a method for mosaic analysis in genetics . It is a cosmid , and contains two functioning wild type closely linked genes a gene of interest and a mosaic marker . Such an array is injected into germ line cells, which already contain mutant specifically, loss of function alleles of all three genes in their chromosome chromosomal DNA . The cosmid, which is not packed correctly during mitosis , is occasionally present in only one daughter cell following cell division. The daughter cell containing the array expresses the gene of interest the cell lacking the array does not. The mosaic marker is a gene which exhibits a visible phenotype change between the functioning and non functioning alleles. For example, ncl 1 , located in chromosomal DNA, exhibits a larger nucleolus than the wild type allele, which is in the array. Thus, cells which exhibit larger nucleoli have usually not retained the extrachromosomal array. The gene of interest is the target of the mosaic analysis. Cells lacking the extrachromosomal array also lack the functional gene of interest. Cells which develop normally without the array do not require the gene of interest for normal function. Cells which do not develop normally are said to require the gene. In this way, those cell lineages which require a specific gene can be identified. Extrachromosomal arrays replace an earlier technique involving a duplicated piece of chromosome called a free duplication . The latter technique required that the gene of interest and the mosaic marker be closely linked on the duplication the former allows free choice of mosaic marker and target gene. References Miller LM, Waring DA, Kim SK 1996 . Mosaic analysis using a ncl 1 extrachromosomal array reveals that lin 31 acts in the Pn.p cells during Caenorhabditis elegans vulval development. Genetics 143 3 1181 1191. Category Genetics genetics stub ... more details
of the array chip. For Affymetrix chips, the model based analysis of tiling array MAT is the most ... there is an analysis challenge, as there is no clearly defined start or stop to your region ... coverage within tiling array applications. Tiling Arrays are a subtype of DNA microarray microarray ... intensively for sequences which are known to exist in a contiguous region of genome. This is useful ... Chip , in addition to other uses e.g. array CGH . ref cite journal last Yazaki first J coauthors Gregory, BD, Ecker, JR title Mapping the genome landscape using tiling array technology. journal Current ... arrays within an array unit called a feature, with anywhere from 10,000 to more than 6,000,000 different features per array. ref name Moc05 cite journal last Mockler first TC coauthors Chan ... genome analysis. journal Genomics date 2005 Jan volume 85 issue 1 pages 1 15 pmid 15607417 accessdate ..., M, Pham, P, Cheuk, R et al. title Empirical analysis of transcriptional activity in the Arabidopsis ..., each of which contains millions of copies of one probe. The other way of synthesizing tiling array ... last Liu first XS title Getting started in tiling microarray analysis. journal PLoS computational biology ... close proximity can be used. This gives an unbiased analysis with high resolution. Besides these advantages ... wide analysis of KAP1 binding suggests autoregulation of KRAB ZNFs. journal PLoS genetics date 2007 ..., TR title Novel RNAs identified from an in depth analysis of the transcriptome of human chromosomes ... DNA immunoprecipitation followed by tiling array allows DNA methylation mapping and measurement ... to a genome wide scale. Comparative Genomic Hybridization CGH Array based CGH is a technique often .... There are two types of tiling arrays commonly used for array CGH, which are the whole genome and fine ... resolution. On the other hand, the fine tiled array CGH would produce ultrahigh resolution to find ... title Tiling resolution array CGH and high density expression profiling of urothelial carcinomas delineate ... more details
dynamic array can do this in Amortized analysis amortized O 1 time while a self balancing binary search tree always operates at O log n . Elements in a sorted array can be looked up by their index random ...Infobox data structure name sorted array type array invented by John von Neumann invented year 1945 space avg O n space worst O n search avg O log n search worst O log n insert avg O n insert worst O n delete avg O n delete worst O n A sorted array is an array data structure in which each element is sorted in numerical, alphabetical, or some other order, and placed at equally spaced addresses in computer memory. It is typically used in computer science to implement static and dynamic data structures static lookup table s to hold multiple values which has the same data type . Sorting an array is useful in organising data in ordered form and recovering it rapidly. Methods There are many well known methods by which an array can be sorted. Some of them are Selection sort , Bubble sort , Insertion sort , Merge sort , Quick sort , Heap sort , and counting sort . Citation needed date November 2011 These sorting techniques have different algorithms. Hence there are different advantages of each ... array are found using a binary search , in O log n , thus sorted arrays are suited for cases when one ... binary search tree s. In some data structures, an array of structures is used. In such cases the same ... a sorted dynamic array , then it is possible to insert and delete elements. The insertion and deletion of elements in a sorted array executes at O n , due to the need to shift all the elements following ... John von Neumann wrote the first array sorting program merge sort in 1945, when the EDVAC first ... according to the highest priority by using sorted array of process ID s. Here, processes got sorted ... takes first position in sorted array. Hence priority wise system processes scheduling is done ... 3 P2 4 P3 1 P4 8 P5 6 See Also array data structure insertion sort sorting algorithm binary search ... more details
In molecular biology and bioinformatics , a SNP array is a type of DNA microarray which is used to detect Polymorphism biology polymorphisms within a population. A single nucleotide polymorphism SNP , a variation at a single site in DNA , is the most frequent type of variation in the genome. For example .... Principles The basic principles of SNP array are the same as the DNA microarray. These are the convergence ... DNA capture. The three mandatory components of the SNP arrays are The array that contains immobilized ... of multiple databases are scanned to design the probes. Each SNP on the array is interrogated with different probes. Depending on the purpose of experiments, the amount of SNPs present on an array is considered. Applications A SNP array is a useful tool to study the whole genome . The most important application of SNP array is in determining disease susceptibility and consequently, in pharmacogenomics ... linkage analysis could be performed to map disease loci, and hence determine disease susceptibility genes for an individual. The combination of SNP maps and high density SNP array allows the use ... genetic linkage analysis shows significant linkage for many diseases such as rheumatoid arthritis ... needed date April 2011 A SNP array can also be used to generate a virtual karyotype using software to determine the copy number of each SNP on the array and then align the SNPs in chromosomal order. In addition, SNP array can be used for studying the loss of heterozygosity LOH . LOH is a form of allelic ... genomic hybridization can detect only genomic gains or deletions, SNP array has the additional ... allelle e.g. from the father are present. Using high density SNP array to detect LOH allows identification ... of SNP array has a huge potential in cancer diagnostics as LOH is a prominent characteristic of most human cancers. Recent studies based on the SNP array technology have shown that not only solid ... BAC, SNP and oligonucleotide microarrays a platform comparison based on statistical power analysis ... more details
multiple issues confusing January 2010 notability January 2010 unreferenced January 2010 orphan July 2010 wikify January 2011 Control Array mostly used in Visual Basic is the collection of controls that programmer put it in form VB Form . Control array is always a single dimensional Array data structure array . Control array is that you can add or delete array elements at run time. With some controls, it is very useful to define control arrays it depends on the application. Control arrays are a convenient way to handle groups of controls that perform a similar function. All of the events available to the single control are still available to the array of controls, the only difference being an argument indicating the index of the selected array element is passed to the event. Hence, instead of writing individual procedures for each control i.e. not using control arrays , you only have to write one procedure for each array. Category BASIC programming language family ... more details
In experiments in which additional factors are not likely to interact with any of the other factors, a saturated array can be used. In a saturated matrix mathematics array , a controllable design of experiments factor is substituted for the interaction of two or more by products. Using a saturated array, a two factor test matrix could be used to test three factors. Using the saturated array allows three factors to be tested in four tests rather than in eight, as would be required by a standard orthogonality orthogonal array. statistics stub Category Design of experiments ... more details
unreferenced date October 2011 In computer science , a sparse array is an Array data structure array ... null . The occurrence of zero elements in a large array is inconvenient for both computation and storage. An array in which there is large number of zero elements is referred to as being sparse. In case of sparse arrays, we can ask for a value from an empty array position. If we do this, then for array of numbers, it should return zero and for array of objects, it should return null. A naive implementation of an array may allocate space for the entire array, but in the case where there are few ... array is determined by other known features or statistical features of the array, for instance ... array . so what? blank space is not an indexed array sparse or not , indeed Representation Sparse Array can be represented as Sparse Array pos1 val1, pos2 val2,... or br Sparse Array pos1, pos2,... val1, val2,... which yields a sparse array in which values math val i math appear at positions math pos i math . Sparse Array as Linked List An obvious question might be asked that why we need linked list to represent sparse array if we can represent it using normal array easily. The answer to this question lies in the fact that while representing sparse array as normal array, a lot of space is allocated for zero or null elements. For example, consider following array declaration br double arr 1000 1000 br When we define this array an enough space of 1,000,000 doubles is allocated. As each double requires 8 bytes of memory, this array will require 8 million bytes of memory. Now this being a sparse array, most of its elements will have a zero or null value. Hence, defining this array will soak ... is to represent the array using linked list which requires less memory as elements having non zero value only are stored. Also, the array elements can be accessed through less number of iterations than normal array when linked lists are used. br A sparse array as linked list contains nodes linked ... more details
File Smithsonian Submillimeter Array.jpg thumb 300px The Submillimeter Array File Mk submm array.jpg thumb 300px The Array under construction in 2002 The Submillimeter Array SMA consists of eight convert 6 m adj on diameter radio telescope s arranged as an interferometer for submillimetre astronomy submillimeter wavelength observations. It is the first purpose built submillimeter interferometer, constructed after successful interferometry experiments using the pre existing convert 15 m 0 adj on James Clerk Maxwell Telescope and convert 10.4 m 1 adj on Caltech Submillimeter Observatory as an interferometer. All of these telescopes are located at Mauna Kea Observatory on Mauna Kea , Hawaii , and can be operated together as a ten element interferometer in the 230 and 345 GHz bands eSMA, for e xtended S ub m illimeter A rray . The baseline lengths presently in use range from convert 16 to 508 m 0 , and up to convert 783 m 0 for eSMA operations. The radio frequencies accessible to this telescope range from 180 to 700 GHz which includes rotational transitions of dozens of molecular species as well as continuum emission from interstellar dust grains. Although the array is capable of operating both day and night, most of the observations take place at nighttime when the atmospheric phase stability is best. The SMA is jointly operated by the Smithsonian Astrophysical Observatory and the Academia Sinica Institute of Astronomy and Astrophysics. Science with the SMA The SMA is a multi purpose instrument which can be used to observe diverse celestial phenomena. The SMA excels at observations ... bibcode 2005DPS....37.5501G ref See also Atacama Large Millimeter Array , under construction in Chile References reflist External links http www.cfa.harvard.edu sma Submillimeter Array website http ... W type landmark region US HI display inline,title Category Radio telescopes Category Submillimetre ... Buildings and structures in Hawaii County, Hawaii de Submillimeter Array ko ja ... more details
orphan date December 2008 For the DVD magazine, see Array DVD magazine Deleted image removed Image ARRAY magazine.jpg right 150px ARRAY Magazine is a New York based interior design, lifestyle and culture quarterly magazine sponsored by the New York Design Center . It has been published since the winter of 2003 2004. With 40,000 readers, ARRAY is geared toward interior design professionals and their clients. External links http www.arrayny.com ARRAY Homepage Category Interior design Category Quarterly magazines Category Media in New York City Category Publications established in 2003 Category Magazines published in New York art mag stub hu ARRAY Magazine ... more details
Infobox power station name Atlantic Array Offshore Wind Farm image image caption location map England location map text Location of Atlantic Array within England locale Bristol Channel, off the coast of North Devon and South Wales , UK owner RWE Npower lat d 51 lat m 16 lat s 19 lat NS N long d 3 long m 39 long s 43 long EW W coordinates type region GB scale 50000 coordinates display title status primary fuel Wind conveyance combined cycle generation units 250 350 turbines installed capacity max planned cap 1500 MW commissioned 2015 expected decommissioned Atlantic Array is a proposed offshore wind farm development by RWE npower , planned for the Bristol Channel , off the coast of North Devon and South Wales . With a planned 1.5 gigawatt capacity, it would be one of the world s largest offshore wind farms. ref http www.renewableenergymagazine.com paginas Contenidosecciones.asp?ID 991&Tipo &Nombre Renewable 20energy 20news Meet the world s largest offshore windfarm ref A site within the UK s third round of offshore wind developments, it is located convert 9 mi off of the coast of north Devon, and convert 10 mi off the coast of South Wales. Covering an area the size of the Isle of Wight , the turbines will be visible from the North Devon , Gower , and Pembrokeshire coastlines. ref name BBC14998944 Originally proposed by Farm Energy2, now part of RWE npower, the company won the lease development rights from Crown Estate s owners of the UK seabed . ref http www.rwe.com web cms en 354738 rwe npower renewables sites projects in development wind atlantic array RWE npower atlantic array ref The current proposal would cost 3bn to create between 350 and 417 wind turbine s, which RWE npower say is enough to power more than a million homes. ref cite news url http news.bbc.co.uk 1 hi england devon 6664005.stm title Largest offshore windfarm planned publisher BBC News date ... uk wales 14998944 title Atlantic Array wind farm Exhibitions open in Porthcawl publisher BBC Wales ... more details
File Aerial antenna.JPG thumb right 250px A multiband US television reception antenna Antenna array may refer to Antenna array electromagnetic a group of isotropic radiators such that the currents running through them are of different amplitudes and phases Interferometry Interferometric array of radio telescopes used in radio astronomy Phased array , also known as a smart antenna , an electronically steerable directional antenna typically used in Radar and in wireless communication systems, in view to achieve beamforming , multiple input and multiple output MIMO communication or space time coding Directional array refers to multiple antennas arranged such that the superposition of the electromagnetic waves produce a predictable electromagnetic field. Direction finding Watson Watt .2F Adcock antenna array Watson Watt Adcock antenna array the Watson Watt technique uses two Adcock antenna pairs to perform an amplitude comparison on the incoming signal. References reflist disambig ... more details
Unreferenced stub auto yes date December 2009 A sensor array is a set of several sensors used to gather information. Usually the sensors and sensed phenomenon are both directional in nature, but this isn t always the case. Sometimes the data varies by position but not by direction. DEFAULTSORT Sensor Array Category Sensors Electronics stub ... more details
Array processing is signal processing of the outputs of an array of sensor s to Enhance the SINR signal to interference plus noise ratio SINR compared to that of a single sensor using conventional or adaptive ... , and other signal parameters. Track multiple moving sources. Array processing is used in radar ... of using array processing along with an array of sensors is a smaller foot print. The problems associated with array processing include the number of sources used, their direction of arrival direction ... courses ee381k lectures 13 Array Processing lecture13 lecture13.pdf Spatial Array Processing . Signal and Image Processing Seminar. University of Texas at Austin. ref There are four assumptions in array ... and nondispersive medium. The second assumption is that for far field array processing, the radius of propagation is much greater than size of the array and that there is plane wave propagation. The third ..., M. http users.ece.utexas.edu bevans courses ee381k lectures 13 Array Processing lecture13 lecture13.pdf Spatial Array Processing . Signal and Image Processing Seminar. University of Texas at Austin ... over large periods of time are needed just as in visible sky viewing. Array gain is done by using ... with array processing ever since to measure seismic activity around the globe. ref http www.norsar.no ... and 120 auxiliary seismic stations around the world. NORSAR has ongoing work to improve array processing ... www.norsar.no pc 31 83 Improving IMS array processing.aspx ref See also Phased Array Space Time Adaptive Processing References reflist cite book title Array Signal Processing last1 Johnson first1 D ... title Optimum Array Processing publisher Wiley location New York year 2002 cite journal first1 H ... Two Decades of Array Signal Processing Research journal IEEE Signal Processing Magazine pages 67 94 month July year 1996 accessdate 8 December 2010 S. Haykin and K.J.R. Liu Editors , Handbook on Array ... nas lehre SS 08 PS Smart Antennas slides proj sem.pdf array processing courseware DEFAULTSORT Array ... more details
Image with unknown copyright status removed Image microwirearray.jpg thumb Multiwire array 400px right A Multiwire array ref name Cheung ref Buzsaki G. 2004. Large scale recording of neuronal ensembles. Nature Neuroscience 7 446 451. ref deletable image caption 1 Thursday, 7 May 2009 Multielectrode arrays MEAs or microelectrode arrays are devices that contain multiple plates or shanks through which neural signal electronics signals are obtained or delivered, essentially serving as neural interfaces that connect neuron s to electric circuit electronic circuitry . There are two general classes of MEAs ... Boven Boven K H, Fejtl M, M ller A, Nisch W, Stett A. On Micro Electrode Array Revival. In Baudry M ..., the voltage at the contact pad is approximately equal to the voltage of the overlapping region of the cell and electrode multiplied by the ratio the surface area of the overlapping region to the area ... electrode behavior is by modeling the system using a geometry based finite element analysis in an attempt ... the use of an array of planar electrodes to record from cultured cells was conducted in 1972 by C.A. Thomas, Jr. and his colleagues. ref name PineBook The experimental setup used a 2 x 15 array ... Y, Okun LM. 1972. A miniature microelectrode array to monitor the bioelectric activity of cultured ... Boven In vivo arrays Image Utah array pat5215088.jpg thumb 300px right Schematic of the Utah in vivo electrode array The three major categories of implantable MEAs are microwire, silicon based, ref R ... array signals are only received from the tips of each electrode, which limits the amount of information ... and parameters while the Michigan array allows for more design freedom. Flexible arrays, made ... within the array The ability to simultaneously receive data from multiple sites Furthermore, in vitro ... array, particularly in regards to chronic implantation. Most notable among these effects ..., forming a sheath surrounding the array that extends tens of micrometres around the device ... more details
In MIMO communication systems, array gain means a power gain of transmitted signals that is achieved by using multiple antennas at transmitter and or receiver, with respect to Single Input and Single Output SISO case. It can be simply called power gain . In a broadside array, the array gain is almost exactly proportional to the length of the array. This is the almost always the case provided that the elements of the antenna are not spaced to a point at which large radiation side lobs form in other directions and that the array length exceeds one or two wavelengths. The power gain of a broadside array is nearly independent of the number of broadside elements as long as both of these conditions are met. ref http www.smeter.net daily facts 12 fact5.php ref The two main types of array gain when combining signals are average power of combined signals relative to the individual average power and the diversity gain related to the probability level of outage. The diversity gain is dependent on spacial correlation coefficients between antenna signals. ref Andersen, J.B. , Array gain and capacity for known random channels with multiple element arrays at both ends, Selected Areas in Communications, IEEE Journal on , vol.18, no.11, pp.2172 2178, Nov 2000 doi 10.1109 49.895022 ref Applications In radio astronomy because of background noise from modern communications it is difficult to achieve a good signal to noise ratio. Even for strong astronomical radio emission it is typical for SNR levels to be below 0 decibel. To counter this problem exposure of the antenna to the source over large periods of time are needed just as in visible sky viewing. Array gain is done by using multiple, even dozens of radio receivers to collect as much signal as possible. Robots equipped with antenna arrays have better communication using array gain to eradicate dead spots and reduce interferences. ref Hambling, David. Robots fall into line with the help of sparse array antenna. New Scientist 207 2010 ... more details
In computer architecture , a systolic array is a pipe network arrangement of processing units called ... array is composed of matrix like rows of data processing units called cells. Data processing units ... of a program counter , ref The Paracel GeneMatcher series of systolic array processors do have a program ... immediately after processing. The systolic array is often rectangular where data flows across the array ... streams entering and leaving the ports of the array are generated by auto sequencing memory units, ASMs ... . One matrix math matrix is fed in a row at a time from the top of the array and is passed down the array, the other matrix is fed in a column at a time from the left hand side of the array ... whole row and one whole column. At this point, the result of the multiplication is stored in the array and can now be output a row or a column at a time, flowing down or across the array. ref http web.cecs.pdx.edu mperkows temp May22 0020.Matrix multiplication systolic.pdf Systolic Array Matrix Multiplication ... them. Because the traditional systolic array synthesis methods have been practiced by algebraic ... with asynchronous handshake between DPUs are called wavefront arrays . One well known systolic array ... system has a linear array processor connected by data buses going in both directions. History The systolic array paradigm, data stream driven by data counters, is the counterpart of the von Neumann architecture ... array usually sends and receives multiple data streams, and multiple data counters are needed to generate ... 2 x a n 3 x ... a 1 x a 0 math A linear systolic array in which the processors are arranged in pairs ... Highly specialized for particular applications Difficult to build Super Systolic Array The super systolic array is a generalization of the systolic array. Because the classical synthesis methods ... array the super systolic array. Its application is not restricted to applications with regular ... array. More information about the background may be obtained from the articles about Systolic array ... more details
A Commission of Array was a Letters patent commission given by England English royalty to officers or gentry in a given territory to muster and array the inhabitants and to see them in a condition for war, or to put soldier s of a country in a condition for military service. The term arrayers is used in some ancient English statutes, for an officer who had a Commission of Array. Commissions of array developed from the ancient obligation of all free men to defend their country. Commissioners were usually experienced soldiers, appointed by the crown to array able bodied men from each shire. By the time of the Wars of the Roses conscript levies were less important than troops raised by indenture . Though obsolete by the 17th century, the system was revived by Charles I of England Charles I in 1642 in opposition to the 1641 Militia Ordinance that gave Parliament of England Parliament control of raising troops in order to muster a Cavalier Royalist army at the onset of the English Civil War . See also Arrayer Posse comitatus common law Posse comitatus References 1828 Webster s Dictionary 1728 http digicoll.library.wisc.edu cgi bin HistSciTech HistSciTech idx?type turn&entity HistSciTech000900240187&isize L DEFAULTSORT Commission Of Array Category English Civil War Category Military history of the United Kingdom Category Command staff occupations England stub Mil hist stub UK hist stub th ... more details
Unreferenced date December 2009 A macrocell array is an approach to the design and manufacture of Application specific integrated circuit ASIC s. Essentially, it is a small step up from the otherwise similar gate array , but rather than being a prefabricated array of simple logic gates, the macrocell array is a prefabricated array of higher level logic functions such as Flip flop electronics flip flop s, Arithmetic logic unit ALU functions, Hardware register register s, and the like. These logic functions are simply placed at regular predefined positions and manufactured on a wafer electronics wafer , usually called master slice . Creation of a circuit with a specified function is accomplished by adding metal interconnects to the chips on the master slice late in the manufacturing process, allowing the function of the chip to be customised as desired. Macrocell array master slices are usually prefabricated and stockpiled in large quantities regardless of customer orders. The fabrication according to the individual customer specifications may be finished in a shorter time compared with standard cell or full custom design. The macrocell array approach reduces the Photomask mask costs since fewer custom masks need to be produced. In addition manufacturing test tooling lead time and costs are reduced since the same test fixtures may be used for all macrocell array products manufactured on the same die manufacturing die size. Drawbacks are somewhat low density and performance than other approaches to ASIC design. However this style is often a viable approach for low production volumes. DEFAULTSORT Macrocell Array Category Gate arrays es Matriz de macroc lulas ru ... more details
Image CHARA array.jpg thumb 250px The Operations Center of the CHARA array The CHARA Array is an optical astronomical interferometer operated by The Center for High Angular Resolution Astronomy CHARA of the Georgia State University GSU . CHARA is the World s highest angular resolution telescope at near infrared wavelengths. It is located at the Mount Wilson Observatory , near Los Angeles, California . The CHARA Array is an interferometer formed from six 1 meter 40 inch telescopes arranged along three axes with a maximum separation length of 330 m. The light beams travel through vacuum tubes and are combined optically, requiring a building 100 meters long with movable mirrors to keep the light in phase as the earth rotates. CHARA began scientific use in 2002 and began routine operations in early 2004. In the infrared, the array has an interferometric imaging resolution of 0.0005 arcseconds . All six telescopes are in regular use for scientific observations and as of late 2005 imaging results are routinely acquired. The array captured the first image of the surface of a main sequence star other than the sun published in early 2007. ref http www.ns.umich.edu htdocs releases story.php?id 5877 U M astronomers capture the first image of surface features on a sun like star , University of Michigan , 2007 05 31 ref See also Image chara 2000 09 15.JPG thumb 250px Looking down on the top of Mount Wilson, including the historic 100 Hooker telescope center , the 60 telescope center left , and the GSU CHARA Array. Cambridge Optical Aperture Synthesis Telescope COAST Infrared Optical Telescope Array Magdalena Ridge Observatory Interferometer Palomar Testbed Interferometer Navy Prototype ... http olbin.jpl.nasa.gov news chara 18Sept05.html First 4 Telescope Fringes at the CHARA Array ... Array. III. Oblateness, Rotational Velocity and Gravity Darkening of Alderamin archiv.org http discovermagazine.com ... Category Interferometric telescopes observatory stub de CHARA Array it CHARA Array ru CHARA ... more details
Multiple issues unreferenced December 2009 context October 2009 Image HP HASS NIKE.jpg thumb Hewlett Packard disk arrays HASS top and NIKE OEM d Data General SCSI Clariion Image EMC Clariion CX500.jpg thumb EMC Corporation EMC CLARiiON CX500 Cover removed on one Shelf Image EMC Symmetrix DMX1000 Front.jpg thumb EMC Corporation EMC Symmetrix DMX1000 A disk array is a disk storage system which contains multiple disk drive s. It is differentiated from a disk enclosure , in that an array has cache memory and advanced functionality, like redundant array of independent disks RAID and Storage virtualization virtualization . Components of a typical disk array include Disk array controller s Cache memories Disk enclosure s Power supply Power supplies Typically a disk array provides increased availability, resiliency and maintainability by using additional, redundant components controllers, power supplies, fans, etc. , often up to the point when all single point of failure single points of failure SPOFs are eliminated from the design. Additionally those components are often hot swappable. Typically, disk arrays are divided into categories Network attached storage NAS arrays storage area network SAN arrays Modular SAN arrays Monolithic SAN arrays Utility Storage Arrays Storage virtualization DEFAULTSORT Disk Array Category Computer storage Category Fault tolerant computer systems Category RAID de Disk Array fr Baie de stockage ja pl Macierz dyskowa ru ... more details
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