Fifth Element may refer to 5th Element , the 1999 album by reggae and dancehall artist Bounty Killer The 5th Element Tynisha Keli album The 5th Element Tynisha Keli album Aether classical element , the mythical fifth classical element Aether classical element Quintessence , another term for the fifth element Boron , the modern element with atomic number 5 on the periodic table The Fifth Element , a 1997 movie starring Bruce Willis The Fifth Element video game The Fifth Element video game , a 1998 video game based on the movie The Fifth Element store , a hip hop record store in Uptown, Minneapolis The Fifth Sacred Thing , which has apparently been referred to also as The Fifth Element , is a novel by Starhawk The apparently erroneous reference is in Sch npflug, Karin, Feminism, Economics and Utopia Time Travelling Through Paradigms Oxon London Routledge Routledge Frontiers of Political Economy ser., no. 99 , hbk. 2008 ISBN13 978 0 415 41784 6 , p. 22 and perhaps see chap. 7 author economist, Austrian Ministry of Finance, & lecturer, Univ. of Vienna, Austria, per id. , p. i author Sch npflug named Starhawk s work as The Fifth Element in original but perhaps intended The Fifth Sacred Thing , per http www.worldcat.org search?q ti 3AThe Fifth au 3AStarhawk&qt advanced&dblist 638 as accessed Nov. 18, 2011, as no work titled The Fifth Element by Starhawk is known, per http www.worldcat.org search?q ti 3AThe Fifth Element au 3AStarhawk&qt results page as accessed Nov. 18, 2011 . disambig ru zh ... more details
Unreferenced stub auto yes date December 2009 Orphan date December 2009 An octatomic element is a chemical element that, under standard conditions for temperature and pressure is stable, when in a configuration of eight atoms grouped together. The canonical example is sulfur , S sub 8 sub , but octaoxygen is also known. See also Diatomic element DEFAULTSORT Octatomic Element Category Molecules Chem stub ... more details
Surface element may refer to Volume form Surfel in 3D computer graphics Differential infinitesimal , an infinitesimal portion of a surface disamb ... more details
Cleanup date September 2008 A P element is a transposon that is present specifically in the fruit fly Drosophila melanogaster and is used widely for mutagenesis and the creation of genetically modified flies used for genetic research. The P element gives rise to a phenotype known as P element Hybrid dysgenesis hybrid dysgenesis . P elements were discovered in the 1970s when laboratory strains used since 1905 were compared to wild type flies ie found in nature . It seemed that these P elements had swept through all wild type populations of D. melanogaster subsequent to the isolation of the laboratory strains, which did not contain P elements. The P element encodes for the protein P transposase ... throughout the genome, disrupting many genes and killing progeny. Characteristics The P element ... P element encodes a transposase enzyme , which recognizes the 31 base pairs bp terminal inverted repeats of the P element and catalyzes P element excision and re insertion. The complete element is 2907 ... . P element insertion and subsequent excision results in the production of 8 bp direct repeats, and the presence of such repeats is indicative of previous P element activity. Hybrid dysgenesis ... mechanism against P element Brennecke, J. et al. An epigenetic role for maternally inherited piRNAs in transposon silencing. Science 322, 1387 1392 2008 . Use in molecular biology The P element has ... but immobile element, and a mobile nonautonomous element. Flies from subsequent generations can ... and catalyzes the excision of a P element from the host DNA, cutting at two recognition sites ... genetic tool, the two parts of the P element must be separated to prevent uncontrolled transposition ... main ways to utilise these tools Fly transformation Clone the P element into a plasmid and transform ... Elements in Drosophila External links http flybase.bio.indiana.edu allied data lk interactive fly aimain ... de P Element fa it Elementi P ru P ... more details
The pivot or pivot element is the element of a Matrix mathematics matrix , an array data structure array , or some other kind of finite set , which is selected first by an algorithm e.g. Gaussian elimination , Quicksort , Simplex algorithm , etc. , to do certain calculations. In the case of matrix algorithms, a pivot entry is usually required to be at least distinct from zero, and often distant from it in this case finding this element is called pivoting . Pivoting may be followed by an interchange of rows or columns to bring the pivot to a fixed position and allow the algorithm to proceed successfully, and possibly to reduce round off error. Pivoting might be thought of as swapping or sorting rows or columns in a matrix, and thus it can be represented as matrix multiplication multiplication by permutation matrix permutation matrices . However, algorithms rarely move the matrix elements because this would cost too much time instead, they just keep track of the permutations. The pivot element in quicksort is the element that is selected as the boundary for partitioning. Quicksort sorts all elements left and right of the pivot element recursion recursively . Overall, pivoting adds more operations to the computational cost of an algorithm. These additional operations are sometimes necessary for the algorithm to work at all. Other times these additional operations are worthwhile because they add numerical stability to the final result. Examples of systems that require pivoting In the case ... rows or columns in the case of a zero pivot element is necessary. The system below requires the interchange ..., in Gaussian elimination it is generally desirable to choose a pivot element with large absolute ... element. Partial pivoting is generally sufficient to adequately reduce round off error. However ... partial pivoting . In this approach, the algorithm selects as the pivot element the entry that is largest ... be desirable to interchange the two rows because the current pivot element 30 is larger than 5.291 but it is relatively ... more details
Distinguish2 the 26 monoisotopic element s defined as having only one stable nuclide Image venn diagram AB.svg thumb Set A is the 26 monoisotopic elements and B the 22 mononuclidic elements. The intersection consists of 19 elements that are both, but each set contains elements that are of one sort but not the other. There are 7 monoisotopics that are not mononuclidic, and there are 3 mononuclidics that are not monoisotopic. A mononuclidic element is one of the 22 chemical element s that is found naturally on Earth essentially as a single nuclide which may, or may not, be a stable nuclide . This single nuclide will have a characteristic atomic mass . Thus, the element s Natural abundance natural isotopic abundance is dominated either by one stable isotope or by one very long lived isotope. There are 19 elements in the first category which are both monoisotopic and mononuclidic , and 3 bismuth , ref Until 2003, sup 209 sup Bi was thought to be in the first category. It was then found to have a half life of 10 sup 19 sup years about a billion times the age of the universe. See Bismuth Notable characteristics Bismuth ref thorium and protactinium in the second category mononuclidic but not monoisotopic, since they have zero, not one, stable nuclides . A list of the 22 mononuclidic elements is given at the end of this article. Of the 26 monoisotopic element s that, by definition, have only one stable isotope, there exist 7 26 minus 19 7 which are nevertheless not considered mononuclidic ... of isotopes Data from http physics.nist.gov PhysRefData Compositions Atomic Weights and Isotopic ... 2005 . class wikitable style font size 95 white space nowrap Element Nuclide Z proton p ... 140 231.035 88 2 radioactive See also Primordial element Primordial nuclide List of nuclides Table of nuclides sorted by half life Table of nuclides Isotope geochemistry Radionuclide Monoisotopic element ... Reflist DEFAULTSORT Mononuclidic Element Category Isotopes Category Chemical element groups ... more details
In mathematics , an absorbing element is a special type of element of a Set mathematics set with respect to a binary operation on that set. The result of combining an absorbing element with any element of the set is the absorbing element itself. In semigroup theory, the absorbing element is called a Semigroup Identity and zero zero element ref J.M. Howie, p. 2 3 ref ref name kkm M. Kilp, U. Knauer, A.V. Mikhalev p. 14 15 ref because there is no risk of confusion with zero element other notions of zero. In this article the two notions are synonymous. Definition Formally, let S , be a set S with a binary operation on it known as a magma algebra magma . A zero element is an element z such that for all s in S , z s s z z . A refinement ref name kkm are the notions of left zero , where one requires only that z s z , and right zero , where s z z . Absorbing elements are particularly interesting for semigroup s, especially the multiplicative semigroup of a semiring . In the case of a semiring with 0, the definition of an absorbing element is sometimes relaxed so that it is not required to absorb 0 otherwise, 0 would be the only absorbing element. ref J.S. Golan p. 67 ref Properties If a magma has both a left zero math z math and a right zero math z math , then it has a zero, since math z z times z z math . If a magma has a zero element, then the zero element is Uniqueness quantification unique . Examples The set of binary relations over a set X , together with the composition of relations forms a monoid with zero, where the zero element is the empty relation empty set . The closed ... element is 0. More examples class wikitable style margin 1em auto 1em auto set operation absorber ... Identity element Null semigroup Notes reflist 2 References cite book last Howie first John M. title ... element at PlanetMath Category Semigroup theory Category Binary operations Absorbing element NOTOC de Absorbierendes Element es Elemento absorbente fr l ment absorbant nl Absorberend element ja ... more details
Unreferenced stub auto yes date December 2009 In an electric electrical network circuit , a linear element is an electrical element with a linear relationship between input electricity current and output voltage . Resistor s are the most common example of a linear element other examples include capacitor s, inductor s, and transformer s. Fundamentally nonlinear devices like transistors are often used to build approximately linear circuits. For example, an Operational amplifier op amp is designed to behave like a linear amplifier, as long as its input voltages remain within certain limits. See also Nonlinear element DEFAULTSORT Linear Element Category Electronics terms Electronics stub zh ... more details
Element 80 may refer to Mercury element , atomic number of 80 Element Eighty , rock band from Texas disambig Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ... more details
unreferenced date April 2011 In chemistry , a free element is a chemical element that is uncombined with other elements. When using oxidation numbers all atoms of free elements have an oxidation number of 0. For example, in a Nitrogen molecule N2 each nitrogen atom has an oxidation number of 0. The same applies for Hydrogen H2 and all other chemical elements which are not bonded with another element. Category Chemistry chem stub ... more details
Infobox OS name Element OS logo File Element OS logo.png 200px Element OS logo logo screenshot caption slogan Are You in Your Element? website http www.elementmypc.com www.elementmypc.com family Unix like ... main index.php title Element OS Linux on your HTPC accessdate 1 May 2011 last Discontinued authorlink ... prod template directly the above line is generated by subst prod reason Element OS was a Linux operating ... discontinued ref name DistroWatch cite web url http distrowatch.com table.php?distribution Element title Element accessdate 29 April 2010 last DistroWatch authorlink year 2010 month March ref ref name ... title Element media.OS v1.0 Beta Now Available accessdate 4 May 2010 last Linux Today authorlink year 2010 month January ref ref name GreenHughes cite web url http www.greenhughes.com content element os linux your tv and sofa title Element OS Linux for your TV and sofa accessdate 4 May 2010 last Green ... 2010 02 element os your ultimate entertainment.html title Element OS Your ultimate entertainment ... Element OS was based on Xubuntu and maintained compatibility with the Ubuntu repositories. It used the Advanced Packaging Tool with Element s own custom repositories and the Ubuntu repositories. In addition to the package manager, Element OS incorporated the Allmyapps software center to allow ... title Element HTPC Technology accessdate 29 April 2010 last Element authorlink year undated ref Element employed a customized Xfce interface with similar full screen windowing effects seen on netbook and mobile interfaces such as the Ubuntu Netbook Remix . ref name tech Software Element OS ... main featured apps title Featured Apps accessdate 29 April 2010 last Element authorlink year undated ref Hardware Element OS worked together with Eight Virtues , a hardware reseller, to produce EVTV, a custom built HTPC with Element OS installed. Citation needed date April 2010 References See http ... Xfce Linux distributions Home theater PC application software DEFAULTSORT Element Os Category ... more details
unreferenced date May 2011 Orphan date May 2011 The beam element is a mathematical construct used to model Beam structure beam type structures. The beam is a common structure used in engineering. The frame of a steel building , the frame of a vehicle street lights can all be described by beams. For these reasons the element is used frequently in finite element analysis . The typical beam element assumes all loading is discrete at the ends of the beam. In cases where there is intermediate loading, multiple elements are used. If the intermediate loading is distributed, a load lumping scheme needs to be applied to map the forces to the node. In these situations the beam element fails to give the analytical solution for beam deflection. Provided that a consistent load lumping scheme is applied the element will predict the correct internal forces and displacement at the nodes. Thus by including increasingly more beam elements to a problem, the solution will converge to the exact result. Category Mathematical modeling ... more details
wiktionary element 9 Element 9 may refer to Element 9 music Fluorine disambiguation Short pages monitor This long comment was added to the page to prevent it from being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Long comment. Please do not remove the monitor template without removing the comment as well. ... more details
Infobox musical artist name Element Eighty image size 200 background group or band origin Tyler, Texas Tyler , Texas , United States genre Independent music Indie , hard rock , groove metal , ref http www.last.fm music Element Eighty ref nu metal years active 2000 &ndash 2006, 2007 &ndash 2010 label Texas Cries br Universal Records website http www.elementeighty.net ElementEighty.net Element Eighty was a four piece nu metal band from Tyler, Texas Tyler , Texas . The band formed in 2000. The band split in 2006, only to be reunited a few months later in 2007. Their first album was named after the element Mercury, which is element eighty on the Periodic Table of the Elements . ref http en.wikipedia.org wiki Mercury element ref History Element Eighty formed in 1998 , and self released their debut album Mercuric album Mercuric on June 21, 2001. In April 2003, the band signed a deal with Universal Music Universal Republic Records . Their self titled album Element Eighty album Element Eighty was released on October 28, 2003. The band toured with such artists as Sevendust , Mudvayne , 3 Doors Down , Slipknot band Slipknot , Shinedown , Korn , Hellyeah , Ill Ni o , Flaw band Flaw , 40 Below Summer and Mushroomhead . Citation needed reason article date November 2007 The song Broken Promises ... in December 2006, Element Eighty have since reunited as of May 2007. They have recently begun recording ... due to personal issues. They have since announced the end of Element Eighty. Ryan Carroll is now ... 95 Date of Release Title Label Jun 21, 2001 Mercuric album Mercuric Self released Oct 28, 2003 Element Eighty album Element Eighty Universal Republic Nov 5, 2005 The Bear album The Bear Texas Cries References ... elementeighty Official Element Eighty Street Team Allmusic class artist id p601794 label Element ... groups disestablished in 2010 de Element Eighty es Element Eighty it Element Eighty nl Element Eighty pl Element Eighty pt Element Eighty ru Element Eighty ... more details
Machine element refers to an elementary component of a machine . These elements consist of three basic types i structural components such as frame members, bearings, axles, splines, fastener s, seals, and lubricants, ii Mechanism engineering mechanisms that control movement in various ways such as gear train s, belt mechanical belt or chain drive s, Linkage mechanical linkages , cam and cam follower follower systems, including brake s and clutch es, and iii control components such as buttons, switches, indicators, sensors, actuators and computer controllers. While generally not considered to be a machine element, the shape, texture and color of covers are an important part of a machine that provide a industrial design styling and operational interface between the mechanical components of a machine and its users. Machine elements are basic mechanical parts and features used as the building blocks of most machine s. ref Citation last Matthews first Clifford last2 American Society of Mechanical Engineers title ASME engineer s data book page 249 publisher ASME Press year 2005 edition 2nd url http books.google.com books?id dPS2KU0gj 8C&pg PA249 isbn 9780791802298 postscript . ref Most are Technical standard standardized to common sizes, but customs are also common for specialized applications. ref name bhandari Citation last Bhandari first V. B. title Design of machine elements page 10 publisher Tata McGraw Hill year 2007 edition 2nd url http books.google.com books?id d eNe VRc1oC&pg PA10 isbn 9780070611412 postscript . ref Machine elements may be features of a part such as screw threads or integral plain bearings or they may be discrete parts in and of themselves such as wheels, axles, pulleys, rolling element bearing s, or gears . All of the simple machine s may be described as machine elements, and many machine elements incorporate concepts of one or more simple machines for example, a leadscrew incorporates a screw thread , which may be defined as an inclined plane wrapped ... more details
In mathematics , especially in order theory , the greatest element of a subset S of a partially ordered set poset is an element of S which is greater than or equal to any other element of S . The term least element is defined duality order theory dually . A bounded poset is a poset that has both a greatest element and a least element. Formally, given a partially ordered set P , , then an element g of a subset S of P is the greatest element of S if s g , for all elements s of S . Hence, the greatest element of S is an upper bound of S that is contained within this subset. It is necessarily unique. By using instead of in the above definition, one defines the least element of S . Like upper bounds, greatest elements may fail to exist. Even if a set has some upper bounds, it need not have a greatest element, as shown by the example of the negative real numbers. This example also demonstrates that the existence of a least upper bound the number 0 in this case does not imply the existence of a greatest element either. Similar conclusions hold for least elements. A finite chain order theory chain always has a greatest and a least element. Greatest elements of a partially ordered subset must not be confused with maximal element s of such a set which are elements that are not smaller than any other element. A poset can have several maximal elements without having a greatest element. In a total order totally ordered set both terms coincide it is also called maximum in the case of function values it is also called the absolute maximum , to avoid confusion with a local maximum. The dual ... less than 1 has a least upper bound, but no greatest element. In R , the set of numbers less than or equal to 1 has a greatest element. In R with the product order , the set of x , y with 0 x 1 ... no least upper bound. See also Initial and terminal objects Maximal element Upper and lower bounds ... Element es Elemento mayor y menor ko nl Grootste en kleinste element pl Elementy najmniejszy ... more details
Work in progress Infobox Film name This Is My Element image Thisismyelement.jpg caption director Kirk Dianda br Johnny Schillereff producer Johnny Schillereff br Mark Tinkess br David Brooks br Ryan Kingman br Jeff Dickson writer starring Darrell Stanton br Chad Muska br Chad Tim Tim br Tony Tave br Brent Atchley br Mike Vallely br Tosh Townend br Bam Margera br Nyjah Huston music Odd Nosdam , Moistboyz ref name music cite web title Element This Is My Element skatevideo soundtrack, trailer, watch online publisher skatevideosite.com url http www.skatevideosite.com skatevideos element this is my element soundtrack ref cinematography Craig Metzger editing Kirk Dianda br Lee DuPont br Marc Falkenstein distributor released 2007 runtime 80 minutes ref name time cite web title Amazon.com This is my Element Bam Margera, Bam Movies & TV publisher Amazon url http www.amazon.com This my Element Bam Margera dp B000T8F5GW ref language English budget This Is My Element is an Element Skateboards Element skateboarding video. It was their 8th video, and was released and premiered on June 21, 2007, Go Skateboarding Day , at 100 locations in the United States U.S. , 34 of them in California alone. ref name premiere cite web title This Is My Element Video Premiere url http www.elementskateboards.com ... locations. ref name location cite web title This Is My Element DVD DVD Reviews Skate Zine Caught ... price for the video was 23.99. ref name price cite web title Element skateboards DVD This Is My Element url http www.skatesonhaight.com Element skateboards DVD This Is My Element p dvdeletim.htm ref Content This is My Element features appearances from over 20 people. The full parts are from most of Element Skateboards Element s pro team, and from several of their rising amateurs . ref name DVD cite video people Kirk Dianda, John Schillereff Directors title This Is My Element medium DVD date 2007 ... External links imdb title 1126531 This Is My Element Category Skateboarding videos ... more details
Element 4 may refer to Beryllium with the atomic number 4 Elementfour , a music producing duo made up of Paul Oakenfold and Andy Gray disambig ... more details
In abstract algebra , a non zero non unit ring theory unit element in an integral domain is said to be irreducible if it is not a product of two non units. Irreducible elements should not be confused with prime element s. A non unit element math a math in a commutative ring math R math is called prime if whenever math a bc math for some math b math and math c math in math R math , then math a b math or math a c math . Every prime element is irreducible, ref Consider p a prime that is reducible p ab. Then p ab p a or p b. Say p a a pc, then we have p ab pcb p 1 cb 0. Because R is a domain we have cb 1. So b is a unit and p is irreducible. ref but the converse is not true in general. The converse is true for unique factorization domain UFD s or, more generally, GCD domain s. Moreover, while an ideal generated by a prime element is a prime ideal , it is not true in general that an ideal generated by an irreducible element is an irreducible ideal . However, if math D math is a GCD domain, and math x math is an irreducible element of math D math , then the ideal generated by math x math is an irreducible ideal of math D math . ref http planetmath.org encyclopedia IrreducibleIdeal.html ref Example In the quadratic integer ring math mathbf Z sqrt 5 math , it can be shown using Field norm norm arguments that the number 3 is irreducible. However, it is not a prime in this ring since, for example, math 3 left 2 sqrt 5 right left 2 sqrt 5 right 9 math but math 3 math does not divide either of the two factors. ref William W. Adams and Larry Joel Goldstein 1976 , Introduction to Number Theory , p. 250, Prentice Hall, Inc., ISBN 0 13 491282 9 ref References reflist DEFAULTSORT Irreducible Element Category Ring theory Abstract algebra stub ca Element irreductible es Elemento irreducible pt Elemento irredut vel ru sv Irreducibelt element uk ... more details
references date March 2012 Orphan date July 2009 The Element Quartet was a string quartet prominent in United Kingdom British musical life in the 1950s and 1960s. The members were Ernest Element and Sylvia Cleaver violin s , Dorothy Hemming viola , and Norman Jones cello . The Element Quartet was frequently broadcast on BBC radio . The Element Quartet was particularly associated with the early string quartets of Robert Simpson composer Robert Simpson . The quartet gave the premi re s of his first three string quartets Quartet No.2 is dedicated to the Element Quartet, and Quartet No.3 is dedicated to their violist, Dorothy Hemming. Recordings Robert Simpson String Quartets Nos 1, 2 and 3 from tapes and acetates in the collection of Robert Simpson, recorded ca. 1953 4 . Pearl Pavilion Records GEM 0023 1998 . Category English string quartets Classical ensemble stub England band stub ... more details
Orphan date February 2009 Primarysources date March 2007 Infobox Company company name Element Yachts company logo Image Element logo.gif hiding red link image company slogan Are you in your element? company type Private Company Private foundation location Erin, Ontario origins Canada area served Worldwide industry Boatbuilding products Element line of Express Cruisers parent Element Corporation subsid Group structure view all subsidiaries homepage http www.elementyachts.com www.elementyachts.com footnotes Element Yachts is a second generation Canada Canadian boatbuilding company located in Erin, Ontario Erin , Ontario . The company is currently producing the Element line of express cruiser boats with the first model of the series, the convert 27 ft m sing on Element 270 EXC beginning production in 2005. Element Yachts focuses primarily on the powerboat sector of the boating market, and sells its products worldwide. Image ElementYachts270a.jpg hiding red link image Group structure Image ElementYachtsFacility.jpg hiding red link image Element Yachts is a subsidiary of the Element Corporation which consists of the following companies Element Yachts Express cruiser powerboats Element Composites Composite structures for commercial and military use Element Power Center Engine replacement services with modern, fuel efficient engines Element Yachts and the other Element Corporation subsidiaries operate from a convert 20000 sqft m2 sing on facility on convert 4 acre m2 of land in Erin, Ontario . This facility has the capacity to produce composite boats and structures up to convert 75 ft m abbr on x convert 15 ft m abbr on x convert 15 ft m abbr on in size. History Element Yachts originally began life as the P.C. Mould company. P.C. Mould produced the historic Dragonfly sailboat under ... off and the 2nd generation took over and reformed the company as Element Yachts. The founder and family ... links cite web url http www.elementyachts.com title Element Yachts site accessdate March 14 ... more details
In analytical chemistry , a trace element is an Chemical elementelement in a sample that has an average concentration of less than 100 parts per million measured in atomic count, or less than 100 micrograms per gram. In biochemistry , a trace element is a dietary mineral that is needed in very minute quantities for the proper growth, development, and physiology of the organism. ref H. J. M. Bowen , Trace Elements in Biochemistry . Academic Press , 1966. 2nd edition, 1976. See also List of micronutrients . ref In geochemistry , a trace element is a chemical element whose concentration is less than 1000 parts per million ppm or 0.1 of a rock geology rock s composition. The term is used mainly in igneous petrology . Trace elements will either prefer liquid or solid phase. If compatible with a mineral, it will prefer a solid phase E.G. Ni compatible with Olivine . If it is incompatible with an element it will prefer a liquid phase. The measurement of this ratio is known as the partition coefficient. Trace elements can be substituted for network forming cations in mineral structures. Minerals do not have to contain trace elements, i.e. they do not have to appear in in the mineral s chemical formula. See also Bowen s Kale Major element References reflist Category Analytical chemistry Category Biochemistry Category Geochemistry Category Petrology Geology stub chem stub ar de Spurenelement et J lgelement fr Trace chimie he ja ko ta th simple Trace element ... more details
Image ElementCollection.JPG thumb An element collection housed in a homemade periodic table container. Element collecting is the hobby of collecting the chemical elements . Many element collectors simply enjoy finding peculiar uses of chemical elements. Others enjoy studying the properties of the elements, possibly engaging in amateur chemistry . Many amateur chemists also amassed large collection of elements Oliver Sacks , for example. ref name uncle tungsten Citation title Uncle Tungsten Memories of a Chemical Boyhood last Sacks first Oliver publisher Vintage Books isbn 0 375 40448 1 year 2001 ref In recent years the hobby has seen in increase in popularity with the media attention brought by element collectors like Theodore Gray . Acquiring elements Different collectors have different philosophies in collecting elements. Some collectors attempt to collect very high purity samples of each element. Others prefer to find the element in every day use. Some are averse to collecting the element as a compound or alloy, while other find this acceptable. Some isolate elements in their own homes. Hydrogen , for example, is easily isolated via electrolysis . ref Cite web last Gray first Theodore authorlink Theodore Gray coauthors title The Wooden Periodic Table Table work publisher date url http www.theodoregray.com PeriodicTable accessdate 20 November 2010 ref Some commercial retailers now cater to the element collecting community, even selling complete sets, since purchasing elements .... Element collecting presents many challenges some elements, such as Mercury element mercury ... with uranium glass Lead is commonly found in fishing sinker s Tin is sold as solder Mercury element ... form it is only commonly available synthetic element Tungsten is used in many incandescent light bulbs See also Chemical element Periodic table Prices of elements and their compounds Amateur chemistry References reflist DEFAULTSORT Element Collecting Category Chemical elements Category Collecting ... more details
Meta elements are the HTML element HTML or XHTML code < meta > code element used to provide structured metadata about a Web page . Multiple elements are often used on the same page the element is the same, but its XML Key terminology attribute s are different. Meta elements can be used to specify page description, keywords and any other metadata not provided through the other code head code elements and attributes. The meta element has two uses either to emulate the use of the HTTP response header ... meta code element In one form, code meta code elements can specify Hypertext Transfer Protocol HTTP ... text html . In the general form, a code meta code element specifies code name code and associated ... element identifies itself as containing the keywords relevant to the document, Wikipedia and encyclopedia ... meta http equiv Content Type content text html charset UTF 8 source Meta element used in search engine ... data to correctly classify a Web page and webmasters quickly learned the commercial significance of having the right meta element, as it frequently led to a high ranking in the search engines and thus ... engines began dropping support for metadata provided by the code meta code element in 1998, and by the early ... 2006 the new code NOODP code value for the code robots code element of the meta tags. ref Betsy Aoki ... that is unlikely. It is more likely that a search engine will ignore the meta keyword element completely, and most do regardless of how many words used in the element. Google does, however, use meta ... via a META element has been deprecated for more than ten years, ref http www.w3.org TR 1999 WD WAI ... also Meta refresh , a deprecated meta element RDFa , attribute level extensions to XHTML, for embedding ... www.w3.org TR html4 struct global.html h 7.4.4 W3C HTML 4.01 Specification section 7.4.4, Meta data SearchEngineOptimization DEFAULTSORT Meta Element Category HTML tags Category HTML Category Search engine optimization bar Metatags de Meta Element es Metatag fr l ment meta id Meta it Meta tag he ... more details
The Warburg diffusion element is a common diffusion circuit element that can be used to model semi infinite linear diffusion, that is, unrestricted diffusion to a large planar electrode. A Warburg impedance element can be difficult to recognize because it is nearly always associated with a charge transfer resistance see charge transfer complex and a double layer capacitance see double layer interfacial , but is common in many systems. The Warburg diffusion element Z sub W sub is a constant phase element CPE , with a constant phase of 45 phase independent of frequency and with a magnitude inversely proportional to the square root of the frequency by math Z W frac A W sqrt omega frac A W j sqrt omega math math Z W sqrt 2 frac A W sqrt omega math where A sub W sub is the Warburg coefficient or Warburg constant , j is the imaginary number and is the angular frequency . The presence of the Warburg element can be recognised if a linear relationship on the log of a Bode plot log Z versus log w exists with a slope of value 1 2. References http www.consultrsr.com resources eis diffusion.htm Category Electrochemistry he ... more details
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