Unreferenced stub auto yes date December 2009 A heterogeneous network is a computer network network connecting computer s and other devices with different operating system s and or protocol computing protocol s. For example, local area network s LANs that connect Microsoft Windows and Linux based personal computer s with Apple Computer Apple Macintosh computers are heterogeneous. The word heterogeneous network is also used in wireless networks using different access technologies. For example, a wireless network which provides a service through a wireless LAN and is able to maintain the service when switching to a cellular network is called a wireless heterogeneous network. HetNet Reference to a HetNet often indicates the use of multiple types of access nodes in a wireless network. A Wide Area Network can use macrocell s, picocell s, and or femtocell s in order to offer wireless coverage in an environment with a wide variety of wireless coverage zones, ranging from an open outdoor environment to office buildings, homes, and underground areas. Mobile Experts defines the HetNet as a network with complex interoperation between macrocell, small cell, and in some cases WiFi network elements used together to provide a mosaic of coverage, with handoff capability between network elements. ref cite web title HetNet Forecast url http mobile experts.net product info.php?products id 41 publisher Mobile Experts accessdate 24 June 2011 ref See also Heterogeneous Interoperability Open standard Small Cells Femtocell Picocell Macrocell References references Compu network stub Category Computer networking zh ... more details
Image Hydrogenation on catalyst.png thumb Hydrogenation of ethene on a solid surface In chemistry , heterogeneous catalysis refers to the form of catalysis where the phase of the catalyst differs from that of the reactants . Phase here refers not only to solid , liquid , vs gas , but also immiscible liquids, e.g. oil and water . The great majority of practical heterogeneous catalysts are solids and the great majority of reactants are gases or liquids. ref Gadi Rothenberg, Catalysis Concepts and green applications, Wiley VCH Weinheim, ISBN 978 3 527 31824 7 ref Heterogeneous catalysis is of paramount importance in many areas of the chemical and energy industries. Heterogeneous catalysis has attracted Nobel prize s for Fritz Haber and Carl Bosch in 1918, Irving Langmuir in 1932, and Gerhard Ertl in 2007. Concepts main catalysis In heterogeneous catalysis, the reactants surface diffusion diffuse to the catalyst surface and adsorb onto it, via the formation of chemical bonds. After reaction, the products desorb from the surface and diffuse away. Understanding the transport phenomena and surface chemistry such as Dispersion materials science dispersion is important. If diffusion rates are not taken ... constants and reactant concentrations. For solid heterogeneous catalysts, the surface area of the catalyst ... the catalysts are spread. Classes of heterogeneous catalysts Although the majority of heterogeneous ..., ref Zhen Ma, Francisco Zaera Heterogeneous Catalysis by Metals in Encyclopedia of Inorganic ... diesel . 2 C sub 6 sub H sub 6 sub 15 O sub 2 sub 12 CO sub 2 sub 6 H sub 2 sub O Asymmetric heterogeneous catalysis affords enantiomerically enriched compounds using chiral heterogeneous catalysts. ref Heitbaum, Glorius, Escher, Asymmetric heterogeneous catalysis, Angew. Chem. Int. Ed. 2006 , 45 , 4732. ref The vast majority of heterogeneous catalysts are based on metal s or oxide metal oxides , however ... Commons category Heterogeneous Catalysis references Category Catalysis de Heterogene Katalyse ... more details
Heterogeneous computing systems refer to electronic systems that use a variety of different types of computational units. A computational unit could be a Central processing unit general purpose processor GPP , a special purpose processor i.e. digital signal processor DSP or graphics processing unit GPU , a co processor, or custom acceleration logic application specific integrated circuit ASIC or field programmable gate array FPGA . In general, a heterogeneous computing platform consists of processors with different Instruction set instruction set architectures ISAs . The demand for increased heterogeneity in computing systems is partially due to the need for high performance, highly reactive systems that interact with other environments audio video systems, control systems, networked applications, etc. . In the past, huge advances in technology and frequency scaling allowed the majority of computer ... specialized resources, thus making a computing system heterogeneous. ref name cellMult cite web ..., Olaf O. Storaasli title State of the Art in Heterogeneous Computing journal Scientific Programming ... web title Heterogeneous Processing a Strategy for Augmenting Moore s Law author url http www.linuxjournal.com ... of extra, independent computing resources necessarily allows most heterogeneous systems to be considered ... 12 poster.pdf p accessdate 2009 02 09 ref Hybrid core computing is a form of heterogeneous computing ... features Heterogeneous computing systems present new challenges not found in typical homogeneous ... can include ref name IBMhetero cite web title Bringing Heterogeneous Multiprocessors ... or abstraction when used in heterogeneous environments. Memory Interface and Hierarchy Compute elements ... FIFOs , and Scratchpad RAM scratchpad memories , etc. Heterogeneous platforms often require ... target a heterogeneous platform. Interpretive techniques can be used to hide heterogeneity, but the cost .... Heterogeneous computing platforms Texas Instruments OMAP Analog Devices Blackfin IBM Cell SpursEngine ... more details
A Heterogeneous Database System is an automated or semi automated system for the integration of heterogeneous, disparate database management system s to present a user with a single, unified query interface. Heterogeneous database systems HDBS are computational models and software implementations that provide heterogeneous database integration 1,2 Problems of Heterogeneous Database Integration This article does not contain details of Distributed database management system s sometimes known as Federated database system s . Technical Heterogeneity Different file format s, access Protocol computing protocol s, query languages etc. Often called syntactic heterogeneity from the point of view of data. Data Model Heterogeneity Different ways of representing and storing the same data. Table decompositions may vary, column names data labels may be different but have the same semantics , data code encoding schemes may vary i.e. should a measurement scale be explicitly included in a field or should it be implied elsewhere . Also referred as schematic heterogeneity. Semantic Heterogeneity Data across constituent databases may be related but different. Perhaps a database system must be able to integrate genomic and proteomic data. They are related a gene may have several protein products but the data is different nucleotide sequences and amino acid sequences, or hydrophilic phobic amino acid sequence and positive negatively charge amino acids . There may be many ways of looking at semantically similar, but distinct datasets. The system may also be required to present new knowledge to the user. Relationships may be inferred between data according to rules specified in domain ontologies ... 1. W, S., Heterogeneous database integration in biomedicine. Journal of Biomedical Informatics, 2001. 34 4 p. 285 98. 2. Sheth AP, L.J., Federated database systems for managing distributed, heterogeneous ... systems de Heterogeneous Database System ... more details
Primary sources date July 2009 Java Heterogeneous Distributed Computing refers to a programmable Java programming language Java distributed system which was developed at the National University of Ireland in Maynooth. It allows researchers to access the spare clock cycle s of a large number of semi idle desktop Personal computer PCs . It also allows for multiple problems to be processed in parallel with sophisticated scheduling mechanisms controlling the system. It has been successful when used for tackling problems in the areas of Bioinformatics , Biomedical engineering and cryptography . It is an Open Source project licensed under the GNU General Public License GPL . See also List of distributed computing projects Distributed computing Java programming language Java External links http distributed.cs.nuim.ie Heterogeneous Java Distributed Computing Category Distributed computing projects compu stub ... more details
Heterogeneous nuclear ribonucleoproteins hnRNPs are complexes of RNA and protein present in the cell nucleus during transcription genetics gene transcription and subsequent post transcriptional modification of the newly synthesized RNA pre mRNA . The presence of the proteins bound to a pre mRNA molecule serves as a signal that the pre mRNA is not yet fully processed and ready for export to the cytoplasm . After splicing has occurred, the proteins remain bound to spliced intron s and target them for degradation. The proteins involved in the hnRNP complexes are collectively known as heterogeneous ribonucleoproteins. They include protein K gene expression protein K and polypyrimidine tract binding protein PTB , which is regulated by phosphorylation catalyzed by protein kinase A and is responsible for suppressing RNA splicing at a particular exon by blocking access of the spliceosome to the polypyrimidine tract . ref name isbn0 7167 7601 4 cite book author Matsudaira PT, Lodish HF, Berk A, Kaiser C, Krieger M, Scott MP, Bretscher A, Ploegh H authorlink editor others title Molecular cell biology edition language publisher W.H. Freeman location San Francisco year 2008 origyear pages quote isbn 0 7167 7601 4 oclc doi url accessdate ref rp 326 Functions Prevent folding of pre mRNA into secondary structures that may inhibit its interactions with other proteins. May associate with the splicing apparatus. Transport of mRNA out of the nucleus. The association of a pre mRNA molecule with a hnRNP particle prevents formation of short secondary structures dependent on base pairing of complementary regions, thereby making the pre mRNA accessible for interactions with other proteins. Examples Human genes encoding heterogeneous nuclear ribonucleoproteins include HNRNPA0 , HnRNP A1 HNRNPA1 ... T, Matunis M, et al. title Specific binding of heterogeneous ribonucleoprotein particle protein ... Ribonucleoproteins DEFAULTSORT Heterogeneous Ribonucleoprotein Particle Category Gene expression protein ... more details
Italic title In the history of thermodynamics , On the Equilibrium of Heterogeneous Substances is a 300 page paper written by American mathematical engineer Willard Gibbs . It is one of the founding papers in thermodynamics , along with German physicist Hermann von Helmholtz s 1882 paper Thermodynamik chemischer Vorgä nge . Together they form the foundation of chemical thermodynamics as well as a large part of physical chemistry . ref cite book last Ott first Bevan J. coauthors Boerio Goates, Juliana title Chemical Thermodynamics Principles and Applications publisher Academic Press year 2000 id ISBN 0 12 530990 2 ref ref name Servos cite book last Servos first John, W. title Physical Chemistry from Ostwald to Pauling publisher Princeton University Press year 1990 id ISBN 0 691 08566 8 ref Gibbs s Equilibrium marked the beginning of chemical thermodynamics by integrating chemical , physical, electrical , and Electromagnetism electromagnetic phenomena into a coherent system. It introduced concepts such as chemical potential , phase rule , and others, which form the basis for modern physical chemistry. American writer Bill Bryson describes Gibbs s Equilibrium paper as the Philosophiae Naturalis Principia Mathematica Principia of thermodynamics . ref cite book last Bryson first Bill title A Short History of Nearly Everything pages 116 17,121 publisher Broadway Books year 2003 id ISBN 0 7679 0818 X ref On the Equilibrium of Heterogeneous Substances , was originally published in a relatively ... publication was On the Equilibrium of Heterogeneous Substances in two parts, 1876 and 1878 . In this monumental ... facts. Gibbs papers on heterogeneous equilibria included Some chemical potential concepts Some Thermodynamic ... www docs Gibbs1875 1878 Equilibrium of Heterogeneous Substances.pdf On the Equilibrium of Heterogeneous ... heterog neas it Sull equilibrio delle sostanze eterogenee no On the Equilibrium of Heterogeneous Substances ro On the Equilibrium of Heterogeneous Substances fi On the Equilibrium of Heterogeneous ... more details
PBB geneid 3178 Heterogeneous nuclear ribonucleoprotein A1 is a protein that in humans is encoded by the HNRNPA1 gene . ref name pmid1733858 cite journal author Saccone S, Biamonti G, Maugeri S, Bassi MT, Bunone G, Riva S, Della Valle G title Assignment of the human heterogeneous nuclear ribonucleoprotein A1 gene HNRPA1 to chromosome 12q13.1 by cDNA competitive in situ hybridization journal Genomics volume 12 issue 1 pages 171 4 year 1992 month Mar pmid 1733858 pmc doi 10.1016 0888 7543 92 90424 Q ref The PBB Summary template is automatically maintained by Protein Box Bot. See Template PBB Controls to Stop updates. PBB Summary section title summary text This gene belongs to the A B subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins hnRNPs . The hnRNPs are RNA binding proteins and they complex with heterogeneous nuclear RNA hnRNA . These proteins are associated with pre mRNAs in the nucleus and appear to influence pre mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has two repeats of quasi RRM domains that bind to RNAs. It is one of the most abundant core proteins of hnRNP complexes and it is localized to the nucleoplasm. This protein, along with other hnRNP proteins, is exported from the nucleus, probably bound to mRNA, and is immediately ... polyA sites. ref cite web title Entrez Gene HNRPA1 heterogeneous nuclear ribonucleoprotein A1 url http ... Heterogeneous nuclear ribonucleoprotein A1 has been shown to Protein protein interaction interact .... title Interaction and stimulation of human FEN 1 nuclease activities by heterogeneous nuclear ribonucleoprotein ... R, Lee SO, Park JO, et al. title Enzymatic methylation of recombinant heterogeneous nuclear RNP ... Hamilton BJ, Nagy E, Malter JS, et al. title Association of heterogeneous nuclear ribonucleoprotein ... more details
Unreferenced date September 2009 The Heterogeneous Element Processor HEP was introduced by Denelcor, Inc. in 1982 as the world s first commercial MIMD computer. The HEP s architect was Burton Smith . A HEP system, as the name implies, was pieced together from many heterogeneous components Central processing unit processors , data memory modules, and I O modules. The components were connected via a Packet switching switched network . A single processor, called a PEM, in a HEP system up to sixteen PEMs could be connected was rather unconventional via a program status word PSW queue, up to fifty Computer process processes could be maintained in hardware at once. The largest system ever delivered had 4 PEMs. The eight stage instruction pipeline allowed instructions from eight different processes to proceed at once. In fact, only one instruction from a given process was allowed to be present in the pipeline at any point in time. Therefore, the full processor throughput of 10 Million instructions per second MIPS could only be achieved when eight or more processes were active no single process could achieve throughput greater than 1.25 MIPS. This type of Multithreading computer architecture multithreading processing classifies the HEP as a barrel processor . The hardware implementation of the HEP PEM was emitter coupled logic . Processes were classified as either user level or supervisor level. User level processes could create supervisor level processes, which were used to manage user level processes and perform I O. Processes of the same class were required to be grouped into one of seven user tasks and seven supervisor tasks. Each processor, in addition to the PSW queue and instruction pipeline, contained instruction memory, 2,048 64 bit general purpose Processor register registers and 4,096 constant registers. Constant registers were differentiated by the fact that only supervisor ... it Heterogeneous Element Processor ... more details
File HURT concept drawing.jpg thumb right 225px HART program concept drawing from official Information Processing Technology Office IPTO DARPA website The Heterogeneous Aerial Reconnaissance Team HART formerly known as the Heterogeneous Urban RSTA Team HURT program was an Surveillance Aerial surveillance aerial surveillance project funded by the Information Processing Technology Office of the Defense Advanced Research Projects Agency . The purpose of the program was to develop systems that could provide continuous, real time, three dimensional surveillance of large urbanized areas, using unmanned aerial vehicles . The project team was led by Northrop Grumman corporation, and involved several other academic and corporate researchers. ref name hart overview cite web url http www.darpa.mil ipto programs hart docs HART Overview.pdf title HART Overview date August 2008 work IPTO DARPA Official website accessdate 2009 03 15 ref ref name hart proposal cite web url http www.darpa.mil ipto solicit baa BAA 04 05 PIP.pdf title BAA 04 05 PIP Heterogeneous Airborne Reconnaissance Team HART date December 5, 2003 work Information Processing Technology Office DARPA Official Website accessdate 2009 03 16 Dead link date October 2010 bot H3llBot ref ref name defense daily cite news url http findarticles.com p articles mi 6712 is 40 236 ai n29399227 title DARPA, Northrop Grumman Move Into Next Phase of UAV Control Architecture last Sirak first Michael date Nov 29, 2007 work Defense Daily accessdate 2009 03 16 ref The unique features of the HART program are that it developed systems to decouple soldiers from flight control that is, the UAVs automatically pilot themselves taking care of flight control, collision prevention, and camera sensor control automatically. When the drones notice suspicious activity, they notify the person with the HART control panel so that they can monitor the situation. Another feature of HART was to design handheld devices, to display surveillance video to sma ... more details
Orphan date February 2011 barelinks date July 2011 Heterogeneous Water Oxidation Water oxidation is one of the half reactions of water splitting 2H sub 2 sub O O sub 2 sub 4H sup sup 4e sup sup pad 10px Oxidation generation of dioxygen 4H sup sup 4e sup sup 2H sub 2 sub pad 10px redox Reduction generation of dihydrogen 2H sub 2 sub O 2H sub 2 sub O sub 2 sub pad 10px Total Reaction Of the two half reactions, the oxidation step is the most demanding because it requires the coupling of 4 electron and proton transfers and the formation of two oxygen oxygen bonds. This process occurs naturally in plants photosystem II to provide protons and electrons for the photosynthesis process and release oxygen to the atmosphere. Since hydrogen can be used as an alternative clean burning fuel, there has been a need to split water efficiently. However, there are known materials that can mediate the reduction step efficiently therefore much of the current research is aimed at the oxidation half reaction also known as the Oxygen Evolution Reaction OER . Current research focuses on understanding the mechanism of OER and development of new materials that catalyze the process ref http nsl.caltech.edu research anode ref . Thermodynamics Both the oxidation and reduction steps are pH dependent. Figure 1 shows the standard potentials at pH 0 strongly acidic as referenced to the normal hydrogen electrode NHE . br 2 half reactions at pH 0 br Oxidation pad 10px 2H sub 2 sub O 4H sup sup 4e sup sup O sub 2 sub pad 10px E 1.23 V vs. NHE Reduction pad 10px 4H sup sup 4e sup sup 2H sub 2 sub pad 10px E 0.00 V vs. NHE Overall pad 10px 2H sub 2 sub O 2H sub 2 sub O sub 2 sub pad 10px E cell 1.23 V G 475 kJ mol br Water splitting can be done at higher pH values as well however the standard potentials will vary according to the Nernst equation and therefore shift by 59 mV for each pH unit increase. However ... rates. Mechanism Heterogeneous OER is sensitive to the surface which the reaction takes place ... more details
. In discrete systems, heterogeneous random walks in 1d have jump probabilities that depend on the location ... on the location in the system. General solutions for heterogeneous random walks in 1d obey equations ... of random walks. Arbitrarily heterogeneous environments make the analysis difficult, especially in high ... a linear potential. Heterogeneous systems The solution for the Green s function math G ij t L math for a semi Markovian random walk in an arbitrarily heterogeneous environment in 1D was recently ... dependent irreversible trapping JT PDFs, math psi iI t math , with I i L . The environment is heterogeneous .... math G ij t math . ref name 9 ref name 13 ref name 14 ref name 14c Explicit expressions for heterogeneous random walks in 1D In a completely heterogeneous semi Markov process semi Markovian random walk ... form for random walks in 1d. Path representation of heterogeneous random walks Clearly, math bar G ... to characterize heterogeneous chains as well. We also note that the following relation holds, math ... more details
On Wikipedia heterogeneity or heterogeneous may refer to the following Heterogeneity in the sciences is a substance composed of dissimilar or diverse parts. A Homogeneous and heterogeneous reactions heterogeneous reaction , a reaction in chemical kinetics that takes place at the interface of two or more phases, i.e. between a solid and a gas, a liquid and a gas, or a solid and a liquid A heterogeneous catalysis , one in which the catalyst is in a different phase from the substrate Study heterogeneity , a concept in statistics A heterogeneous taxon , a taxon that contains a great variety of individuals or sub taxa usually this implies that the taxon is an artificial grouping Genetic heterogeneity , multiple origins causing the same disorder in different individuals. Heterogeneity in landscape ecology , the measure of how different parts of a landscape are from one another. Heterogeneous computing , electronic systems that utilize a variety of different types of computational units With information technology it means a network comprising different types of computers, potentially with vastly differing memory sizes, processing power and even basic underlying architecture. A data resource with multiple types of formats. Heterogeneous agents in economic models See also Homogeneity and heterogeneity Homogeneity disambiguation Degeneracy biology Degeneracy disamb ... more details
Orphan date February 2009 Notability date December 2009 In computer science the INtelligent Data Understanding System is a project of the University of Iowa Computer Science Department. INDUS is a federated , query centric system for metadata discovery from distributed, semantically heterogeneous data. INDUS employs ontologies and inter ontology mappings, to enable a user or an application to view a collection of physically distributed, autonomous, semantically heterogeneous data sources regardless of location, internal structure and query interfaces as though they were a collection of tables structured according to an ontology supplied by the user. This allows INDUS to answer user queries against distributed, semantically heterogeneous data sources without the need for a centralized data warehouse or a common global ontology. See also metadata metadata discovery External links http www.cild.iastate.edu software indus.html INDUS web site at University of Iowa Category Metadata ... more details
of CO sub 2 sub into the lungs from the blood stream. Contrast with heterogeneous catalysis Homogeneous catalysis is the opposite of heterogeneous catalysis , where the catalyst is in a different phase than the reactants. One example of heterogeneous catalysis is the petrochemical alkylation process, where the liquid reactants are immiscible with a solution containing the catalyst. Heterogeneous catalysis offers the advantage that products are readily separated from the catalyst, and heterogeneous ..., heterogeneous catalysts are difficult to study, so their reaction mechanisms are often unknown. ref ..., 1997, pp. 249 251. ref Enzyme s possess properties of both homogeneous and heterogeneous catalysts ... more details
Typostrophic variation is a term used in population genetics to describe the type of variation found in peripherally isolated populations. Variation of this kind is wiktionary heterogeneous heterogeneous , due to factors such as geographic isolation and inbreeding . In 1954 Ernst Mayr wrote a landmark paper developing the idea that subspecies in typostophic populations lead to formation of species incipient species . ref Mayr, E. http www.blackwellpublishing.com ridley classictexts mayr.asp Change of genetic environment and evolution. In Julian Huxley et al., eds., Evolution as a Process . London Allen and Unwin, pp. 157 180. ref According to Mayr species formation rarely occurred in populations which were exemplified by ecotypic variation . Notes Reflist Category Population genetics Genetics stub ... more details
oneref date August 2010 A distributed database management system DDBMS is a software system that permits the management of a distributed database and makes the distribution transparent to the users. A distributed database is a collection of multiple, logically interrelated databases distributed over a computer network. Sometimes distributed database system is used to refer jointly to the distributed database and the distributed DBMS. Overview Distributed database management systems is a software for managing databases stored on multiple computers in a network. A distributed database is a set of databases stored on multiple computers that typically appears to applications on a single database. Consequently, an application can simultaneously access and modify the data in several databases in a network. DDBMS is specially developed for heterogeneous database platforms, focusing mainly on heterogeneous database management systems HDBMS . See also Heterogeneous Database System References M. T. zsu and P. Valduriez, Principles of Distributed Database Systems 2nd edition , Prentice Hall , 1999. ISBN 0 13 659707 6. Databases DEFAULTSORT Distributed Database Management System Category Database management systems Category Applications of distributed computing eu Datu base banatuak kudeatzeko sistema tr Da t k veritaban y netim sistemi ... more details
disambiguation Wiktionary homogeneity heterogeneity homogeneous heterogeneous File The FireHouse Grill Lunch.jpg thumb right 200px Clam chowder , a heterogeneous material Homogeneity and heterogeneity ... is uniform in composition or character one that is heterogeneous lacks uniformity in one of these qualities. ref name websters hetrogeneity ref name Heterogeneous ref name homogeneous 1913and1928 ... on a larger scale, compared to being heterogeneous on a smaller scale within the same substance ... pages 53 72 Chapter 3 url http books.google.com ?id fCP5qyRyX oC&pg PA53&dq heterogeneous physics v onepage&q heterogeneous 20physics&f false format isbn 9780691034522 Google Books preview download ... heterogeneous . It is the nature of opposition, or contrariety of qualities. Pertaining to the sciences ... ref ref name Heterogeneous Cite web title Webster s Revised Unabridged Dictionary 1913 1828 work Heterogeneous ... understand heterogeneity , or being heterogeneous , in different ways. For example In physics ... or process. Citation needed date September 2010 In chemistry , a heterogeneous material consists ... technology see Heterogeneous computing it means a network science network comprising different ... May 2011 Rocks geology are inherently heterogeneous, usually occurring at the micro scale and mini ... main Homogenization chemistry A heterogeneous mixture is a mixture of two or more Chemical compound ... is known as a heterogeneous material. ref During the Sampling statistics sampling of heterogeneous .... Homogenization is the process of causing a heterogeneous mixture to become homogeneous, as is done with the making of homogenized milk . Homogeneous and heterogeneous reactions Homogeneous reactions are chemical reaction s in which the reactants are in the same phase matter phase , while heterogeneous ... of a catalyst of a different phase are also heterogeneous. A reaction between two gases, two liquids ... and a solid is heterogeneous. Citation needed date September 2010 A mixture can be determined to be homogeneous ... more details
Unreferenced date December 2009 A Fibre Metal Laminate or FML is one of a class of metallic materials consisting of a laminate of several thin metal layers bonded with layers of composite material . This allows the material to behave much as a simple metal structure, but with considerable specific advantages regarding properties such as metal fatigue , impact mechanics impact , corrosion resistance, fire resistance, weight savings and specialised strength properties. Being a mixture of monolithic metals and composite materials, FMLs belong to the class of heterogeneous mixtures see below . Examples of FMLs are ARALL Aramid fibres and GLARE . References reflist External links http www.composite agency.com materials forum.htm Forum for Integrated Diffusion Chemical Mechanical Simulation of Advanced Materials Category Heterogeneous chemical mixtures es Laminado de fibra de metal ... more details
Hybrid computing can refer to Hybrid computer Analog digital hybrid computation Symbolic numeric computation The strategy of deploying multiple types of processing elements within a single workflow, and allowing each to perform the tasks to which it is best suited. ref name hybpap cite web title Visions for Application Development on Hybrid Computing Systems author url http rssi.ncsa.uiuc.edu proceedings posters rssi07 12 poster.pdf p accessdate 2009 02 09 ref Another term sometimes seen for this type of computing is heterogeneous computing . ref name hetpro cite web title Heterogeneous Processing a Strategy for Augmenting Moore s Law author url http www.linuxjournal.com article 8368 publisher www.linuxjournal.com Linux Journal accessdate 2007 10 03 ref References reflist dab Category Computing terminology Category Classes of computers ru ... more details
orphan date August 2009 An attrition test is a test chemistry test is carried out to measure the resistance of a granular material to wear . An example of a material subjected to an attrition test are stones used in road construction , indicating the resistance of the material to being broken down under road traffic . Heterogeneous catalysis Heterogeneous catalysts are also subjected to attrition tests to determine their physical performance in a nuclear reactor . The test itself involves agitating the particles, typically by tumbling within a drum, vibration, or with jets of gas to simulate a fluidised bed . After a specified time, the material is sieving sieved and the sieved material weighed to measure the proportion of material which has been reduced to below a certain size referred to as fines . The specifics of the test are defined by various Technical standard standards as applicable to the purpose in question, such as those defined by ASTM International ASTM . Category Roads Category Stones ... more details
The Fabric Application Interface Standard or FAIS is a common application programming interface framework for implementing storage applications in a storage networking environment. FAIS is defined by Technical Committee T11 of the International Committee for Information Technology Standards . It provides a high speed, highly reliable device for performing Fabric computing fabric based services throughout heterogeneous data center environments. References http www.t11.org t11 stat.nsf e91f00601ce658a185256cbe001d0d43 11609f561a857b8f85256d4a007bebba?OpenDocument FAIS project listing Category Storage area networks Category Storage software compu storage stub ... more details
protein Name heterogeneous nuclear ribonucleoprotein M caption image width HGNCid 5046 Symbol HNRPM AltSymbols NAGR1 EntrezGene 4670 OMIM 160994 RefSeq NM 005968 UniProt P52272 PDB ECnumber Chromosome 19 Arm p Band 13.3 13.2 LocusSupplementaryData The N Acetylglucosamine receptor is a Receptor biochemistry receptor which binds N Acetylglucosamine . External links MeshName N Acetylglucosamine Receptor Lectins Transmembrane receptors Category Lectins Category Article Feedback 5 biochemistry stub ... more details
Titration is a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of a known reactant. Titration may also refer to Acid base titration , based on the neutralization reaction Redox titration , based on an oxidation reduction reaction Complexometric titration , based on the formation of a complex between the analyte and the titrant Zeta potential titration characterizes heterogeneous systems such as colloids Thermometric titration , an instrumental technique In medicine , titration is the process of gradually adjusting the dose of a medication until optimal results are reached disambig ... more details
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