of ibeam beams. There are two standard Ibeam forms Rolled ibeam beam, formed by hot rolling , cold ... the dimensions, masses and sectional properties of a set of I beams T beamI joist Open web steel ...DISPLAYTITLE ibeam beam two other uses the text cursor of a graphical computer user interface Cursor computers the night club IBeam nightclub Image iBeam 002.JPG right thumb 280px This Ibeam is used to support the first floor of a house. An ibeam beam , also known as H beam , W beam for wide flange , Universal Beam UB , Rolled Steel Joist RSJ , or double T especially in Polish language Polish , Spanish language Spanish and German language German , is a beam structure beam with an ibeam or H shaped ... moment experienced by the beam. Euler Bernoulli beam equation Beam theory shows that the ibeam ... be formed from aluminium or other materials. A common type of ibeam beam is the rolled steel joist ... UBs are significantly deeper than they are wide are more suited to carrying bending load such as beam ... loss of strength in a fire if unprotected. Design Image Beam mode 2.gif right thumb 280px Illustration of a vibrating ibeam beam. ibeam beams are widely used in the construction industry ... steel ibeam beam size for a given applied load. ibeam beams may be used both as beams and as column ... engineering deflection the stiffness of the ibeam beam will be chosen to minimize deformation ... caused by concentrated loads, such as at the beam s point of support shear failure where the web fails ..., of stiffeners used to provide stability to the ibeam beam s web. Design for bending File Poutre flexion deviee.svg thumb 400px The largest stresses math sigma xx math in a beam under bending are in the locations farthest from the neutral axis. A beam under bending sees high stresses along ... in the beam must be located in these regions. Comparatively little material is needed in the area close to the neutral axis. This observation is the basis of the ibeam beam cross section the neutral ... more details
at 1748 Haight Street from October 1977 to July 1994. Opening of the IBeam The IBeam was founded .... The nightclub was located in the former Park Masonic Hall. The IBeam began in October 1977 as a popular ... carried IBeam s on their shoulders into the club. Dancing, Dj s, Music, Clubs, and Events at the IBeam Inside the IBeam was shaped like a giant cube about forty feet on each side. There were Mylar ... at the IBeam hosted heterosexual dance parties. The club hosted IBeam Sunday Night Tea Dance s, which ... remixes on the impressive DJ equipment. The temperature inside the IBeam was deliberately kept ... s were hired by the IBeam for the first time. The Boy Club continued until the end of 1988. From 1988 to 1992 many fun events were held at the IBeam such as strip contests and appearances by List ... started in San Francisco, Wednesday night became Acid house Night at the IBeam. In the early 1980s ..., the IBeam was able to book many bands that would otherwise have played the larger venue. Because ... , Industrial music industrial , and indie bands played the IBeam from 1981 to 1992. Many well known groups played at the IBeam such as Killing Joke , Gun Club , The Chameleons UK , Clan of Xymox , Billy ... books.google.com books?id hxCLmGXGuHIC&pg PA53&lpg PA53&dq ibeam tea dances&source web&ots NZ7j2AMCTt ... ref End of the IBeam The IBeam closed in 1994 after a long battle with neighbors over sound issues ... Beam on the last night of the IBeam s operation, July 23, 1994. After the IBeam closed, the Park Masonic Hall remained vacant for 10 years. The former location of the IBeam the Park Masonic building ... Haight Street s gay scene As of 2008 lc on however Traxx is much smaller than the former IBeam, and as a neighborhood ... 1986 Time Warp Publishing IBeam Pages 144 146. External links http www.discomusic.com clubs more 3187 0 6 0 C Photos of the IBeam and people s reminiscences about the IBeam at Discomusic.com clubs. DEFAULTSORT IBeam Nightclub Category LGBT nightclubs in the United States Category Culture of San ... more details
A T beam , used in construction , is a Structural engineering load bearing structure of reinforced concrete , wood or metal , with a t shaped Cross section geometry cross section . The top of the t shaped cross section serves as a flange or compression member in resisting compression physical compressive Stress physics stresses . The web of the Beam structure beam below the compression flange serves to resist shear stress and to provide greater separation for the coupled forces of bending . ref Cite book first Francis D.K. last Ching year 1995 title A Visual Dictionary of Architecture edition publisher John Wiley and Sons location New York pages 203 id ISBN 0 471 82451 3 ref The T beam has a big disadvantage compared to an ibeam ibeam beam because it has no bottom flange with which to deal with tensile force s. One way to make a T beam more efficient structurally is to use an inverted T beam with a floor slab or bridge deck joining the tops of the beams. Done properly, the slab acts as the compression flange. Footnotes Reflist Concrete beams are often poured integrally with the slab, forming a much stronger T shaped beam. These beams are very efficient because the slab portion carries the compressive loads and the reinforcing bars placed at the bottom of the stem carry the tension. A T beam typically has a narrower stem than an ordinary rectangular beam. These stems are typically spaced from 4 0 apart to more than 12 0 . The slab portion above the stem is designed as a one way slab spanning between stems see Lecture 6 . External links http www.efunda.com math areas TBeam.cfm Diagram of a tapered T beam http www.efunda.com math areas SquareTbeam.cfm Diagram of a square T beam http www.roymech.co.uk Useful Tables Sections Tee Prop.htm BS 4 Standard steel T section beam tables, 1993 http sketchup.engineeringtoolbox.com bs 4 tee sections c 45.html BS 4 Standard steel T section beam tables, 1971 Category Structural system Element arch stub ... more details
The Beam may refer to The Beam instrument , a musical instrument created by Michael Stearns The Beam tale , Grimm s Fairy Tale s 149th story See also Beam disambiguation disambig ... more details
wiktionary beamBeam may refer to Beam structure , a construction element Beam nautical , the most extreme width or breadth of a nautical vessel, or a point alongside the ship at the mid point of its length A narrow, propagating stream of particles or energy Bessel beam Gaussian beam Light beam Laser beam Particle beam Charged particle beam Cathode ray , or electron beamBeam Inc. , a NYSE listed spirits company that produces Jim Beam , a popular brand of Bourbon whiskey , and a variety of other brands Beam music , a connection line in musical notation Balance beam , a piece of gymnastics equipment BEAM robotics , an automatically moving machine based on analog electronics Beam search , a search algorithm Beam Software , a computer game developer BEAM.TV , a global distribution network Blaster Beam , a musical instrument BEAM, an aggressive chemotherapy regimen involving the use of Carmustine BCNU Carmustine , Etoposide , Cytarabine Ara C Cytarabine , and Melphalan BEAM, neuroimaging brain electrical activity mapping BEAM, the virtual machine at the core of the Erlang programming language Erlang programming language Beam, operate the Transporter Star Trek Transporter in the fictional Star Trek series See also Beam theory , a means of calculating the load carrying and deflection characteristics of beams Battle of the Beams , radio countermeasures used against navigational system used by the Luftwaffe during WWII The Beam disambiguation disambiguation ang B am da Trave de Beam ja pt Trave simple Beam tl Beam th ... more details
region and is likewise very large relative to a wavelength. Beam divergence usually refers to a beam of circular cross section, but not necessarily so. A beam may, for example, have an elliptical cross section, in which case the orientation of the beam divergence must be specified, for example with respect to the major or minor axis of the elliptical cross section. The divergence of a beam can be calculated if one knows the beam diameter at two separate points D sub i sub , D sub f sub , and the distance l between these points. The beam divergence, math Theta math , is given by math Theta 2 arctan left frac D f D i 2 l right . math If the beam has been collimated light collimated using ...The beam divergence of an electromagnetic beam is an angular measure of the increase in beam diameter ... beam emerges. The term is relevant only in the far field , away from any focus optics focus of the beam. Practically speaking, however, the far field can commence physically close to the radiating aperture, depending on aperture diameter and the operating wavelength. Beam divergence is often ... from which the beam emerges is very large with respect to the wavelength . That said, it is also used ... the diameter, math D m math , of the narrowest point on the beam before the lens, and the focal ... s mrad or degree angle degree s. For many applications, a lower divergence beam is preferable. Neglecting divergence due to poor beam quality, the divergence of a laser beam is proportional to its wavelength and inversely proportional to the diameter of the beam at its narrowest point. For example ... laser at 808 nm, if both have the same minimum beam diameter. The divergence of good quality laser beams is modeled using the mathematics of Gaussian beam s. Gaussian laser beams are said to be diffraction limited when their radial beam divergence math theta Theta 2 math is close to the minimum ... is the laser wavelength and w is the radius of the beam at its narrowest point, which is called the beam ... more details
Beam tracing is an algorithm to simulate wave propagation . It was developed in the context of computer ... used in other similar areas such as acoustics and electromagnetism simulations. Beam tracing is a derivative ... al cross sections. Beam tracing was first proposed by Paul Heckbert and Pat Hanrahan ref P. S. Heckbert and P. Hanrahan, Beam tracing polygonal objects , Computer Graphics 18 3 , 119 127 1984 . ref . In beam tracing, a pyramidal beam is initially cast through the entire viewing frustum . This initial viewing beam is intersected with each polygon in the environment, typically from nearest to farthest. Each polygon that intersects with the beam must be visible, and is removed from the shape of the beam and added to a render queue. When a beam intersects with a reflective or refractive polygon, a new beam is created in a similar fashion to ray tracing. A variant of beam tracing casts a pyramidal beam through each pixel of the image plane . This is then split up into sub beams based on its .... Beam tracing solves certain problems related to Sample signal sampling and aliasing , which can ... , Applied Acoustics 38, 207 221 1993 . ref . Since beam tracing effectively calculates the path of every possible ray within each beam ref Steven Fortune, Topological Beam Tracing , Symposium on Computational ... become more popular for rendering calculations. A backwards variant of beam tracing casts beams from ... mapping , backwards beam tracing may be used to efficiently model lighting effects such as caustic optics caustics ref M. Watt, Light water interaction using backwards beam tracing , in Proceedings ... 1990 . ref . Recently the backwards beam tracing technique has also been extended to handle glossy to diffuse material interactions glossy backward beam tracing such as from polished metal surfaces ..., Virtual Reality, Visualisation and Interaction in Africa , 2010. ref . Beam tracing has been successfully applied to the fields of acoustic modelling ref T. Funkhouser, I. Carlbom, G. Elko, G. Pingali ... more details
many beam structure beam s side by side with a deck across the top of them, to a main beam either side supporting a deck between them. The main beams could be ibeam ibeam beams , truss es, or Box girder ...Infobox bridge type type name Beam bridge image SteamAcrossIowaRiver.JPG image title Multispan plate girder bridge deck on concrete piers. sibling names None fact please provide a reference which defines or lists siblings, descendants, and ancestors for bridge types. I have not been able to find one to verify this. date January 2011 descendent names Box girder bridge , Plate girder bridge , trestle , truss bridge fact please provide a reference which defines or lists siblings, descendants, and ancestors for bridge types. I have not been able to find one to verify this. date January 2011 ancestor names Log bridge http www.acrowusa.com index.php?page beam bridge carries Pedestrian s, automobile s, truck s, light rail , heavy rail span range Short material Timber , iron , steel , reinforced concrete , prestressed concrete movable No design Low falsework No unless cast in place reinforced concrete is used Beam bridges are the most simple of structural forms being supported by an abutment at each ... their structural type is known as simply supported . The simplest beam bridge could be a wikt Special ... through bridge . File Passerelle ruisseau Moulin Haut.jpg thumb left A footbridge using Beam structure beam s over a stream in Dordogne , France Because no moments are transferred, thrust , as from ... . Beam bridges are not limited to a single Span architecture span . Some viaduct s such as the Feiyunjiang ... to viaducts using continuous span s over the piers. Beam bridges are often only used for relatively ... are provided by piers. External links Commons category Beam bridges Bridge footer Category Bridges Category Beam bridges bridge type stub de Br cke Balkenbr cke et Talasild es Puente viga ext Puenti viga nl Balkbrug brug no Bjelkebro nn Bjelkebru simple Beam bridge fi Palkkisilta sv Balkbro tr Kiri ... more details
related to the brightness of the beam, in microscopy brightness is very often used because it includes the current in the beam and most systems are circularly symmetric. math B frac eta I epsilon x ...Emittance is a property of a charged particle beam in a particle accelerator . It is a measure for the average spread of particle coordinates in position and momentum phase space . A low emittance particle beam is a beam where the particles are confined to a small distance and have nearly the same momentum. A beam transport system will only allow particles that are close to its design momentum, and of course they have to fit through the beam pipe and magnets that make up the system. In a colliding beam accelerator, keeping the emittance small means that the likelihood of particle interactions will be greater resulting in higher luminosity . File GaussianScatterPCA.png thumb Samples of a multivariate ... D 2 left frac mathrm d p p right 2 right B math Where width is the width of the particle beam dp p is the momentum spread of the particle beam D is the value of the dispersion function at the measurement ... accelerator Since it is difficult to measure the full width of the beam, either the RMS width of the beam or the value of the width that encompasses a specific percentage of the beam for example ... emittance that a beam transport system or analysing system is able to transmit. This is the size ... of beam emittance. Conservation of emittance Quadrupole magnet Lenses can focus a beam, reducing ... the beam emittance include radiation damping , stochastic cooling , and electron cooling . Normalised emittance The emittance so far discussed is inversely proportional to the beam momentum increasing the momentum of the beam reduces the emittance and hence the physical size of the beam. This reduction ... and so can track beam degradation if the particles are accelerated. If is close to one then the emittance is approximately inversely proportional to the energy and so the physical width of the beam ... more details
Infobox beverage name Jim Beam image File Jim Beam logo.jpg 200px caption type Bourbon whiskey proof 80 and 86 manufacturer Beam Inc. origin USA introduced 1795 discontinued related see Related below for list variants White label, Green label, Black label see variants below for complete list Jim Beam ... by Prohibition in the United States Prohibition , seven generations of the Beam family have been ... Jim Beam in 1933 in honor of James B. Beam, who rebuilt the business after Prohibition ended. The Jim Beam Bourbon brand is now owned and produced by Beam Inc. NYSE BEAM , which is a company formed on October 4, 2011 from part of the holding company formerly known as Fortune Brands . Beam is headquartered ... title Beam Inc. Official website publisher BeamGlobal.com location Deerfield, Illinois accessdate 2011 10 24 ref The Beam Noe family that founded the business is still involved in the company. The company ... eventually changed the spelling of their surname to Beam , emigrated from Germany and settled in Kentucky . ref http www.wp verlag.de kdtg jim beam allgemein.pdf ref Johannes Reginald Beam 1770 1834 was a farmer ... Beam sold his first barrels of corn whiskey around 1795. The whiskey was first called Old Jake Beam, and the distillery was known as Old Tub. cn date October 2011 David Beam 1802 1854 took on his ... during a time of industrial revolution. David M. Beam 1833 1913 in 1854 moved the distillery to Nelson ... Beam 1864 1947 managed the family business before and after Prohibition, rebuilding the distillery in 1933 in Clermont, Kentucky , near his Bardstown home. James R. Beam Distilling Company was founded in 1935 by Harry L. Homel, Oliver Jacobson, H. Blum and Jerimiah Beam. From this point forward, the bourbon would be called Jim Beam Bourbon after James Beauregard Beam. T. Jeremiah Beam 1899 1977 started ... operations at the new Clermont facility. Jeremiah Beam eventually gained full ownership and opened ... birth name Frederick Booker Noe II, was the Master Distiller at the Jim Beam Distillery for more ... more details
Original research date November 2007 Refimprove date November 2007 File Bassem Adel Sa eed in 2007.jpg thumb 250px Section Beams are made of steel and they have a specific lengths and shapes like i beam ibeam beam , L, channel and I flanged beam. These types of section are usually used in steel structures and it is common to connected them with plates of steel. Joints There are three methods of connection and they are Rivet s Bolts fastener Bolts Welding The strongest method of connection is the riveted method and it is the most used one. ref name AGS wiley AGS by Wiley structural systems steel ref Citation needed date November 2007 Safety There are some methods of calculation to see if the design of the truss or the construction is safe or not. br ref name AGS wiley Citation needed date November 2007 References reflist DEFAULTSORT Section Beam Category Structural system ... more details
, or wood . One of the most common types of steel beam is the ibeam ibeam beam or wide flange beam also known as a universal beam or, for stouter sections, a universal column . This is commonly used in steel frame buildings and bridge s. Other common beam profiles are the Structural steel C channel , the hollow structural section beam, the Pipe material pipe , and the Structural steel made by budoy ...Unreferenced date February 2009 File Bending.svg frame right A statically determinate beam, bending sagging under an evenly distributed load. A beam is a horizontal List of structural elements structural ... force induced into the material of the beam as a result of the external loads, own weight, Span ... beam structures that are designed and analyzed in a similar fashion. Overview Beams generally ... horizontal loads i.e., loads due to an earthquake or wind . The loads carried by a beam are transferred ... member s. In light frame construction the joist s rest on the beam. Types of beams Beams are characterized ... to a certain allowance. A simple beam is supported by a pin support at one end and a roller support at the other end. A beam with a laterally and rotationally fixed support at one end with no support at the other end is called a cantilever beam . A beam simply supported at two points and having one end or both ends extended beyond the supports is called an overhanging beam . Structural characteristics ... of a simple square beam A and universal beam B . The universal beam flange sections are three times further apart than the solid beam s upper and lower halves. The second moment of inertia of the universal beam is nine times that of the square beam of equal cross section universal beam web ignored ..., the original length of the beam is slightly reduced to enclose a smaller radius arc at the top of the beam, resulting in compression, while the same original beam length at the bottom of the beam is slightly ... of the middle of the beam, generally halfway between the top and bottom, is the same as the radial ... more details
of just one of the two fields is sufficient to describe the properties of the beam. Mathematical form For a Gaussian beam, the complex electric field amplitude is given by math E r,z E 0 frac w 0 w z exp left frac r 2 w 2 z right exp left ikz ik frac r 2 2R z i zeta z right , math where math r math is the radial distance from the center axis of the beam, math z math is the axial distance from the beam s narrowest point the waist , math i math is the imaginary unit for which math i 2 ... R over z 2 z mathrm R 2 1 over R z i lambda over pi w 2 z . math The complex beam parameter plays ... 2 w 2 z right , math where math P 0 1 over 2 pi I 0 w 0 2 math is the total power transmitted by the beam ...In optics , a Gaussian beam is a Light beambeam of electromagnetic radiation whose transverse electric ... . When refraction refracted by a lens optics lens , a Gaussian beam is transformed into another Gaussian beam characterized by a different set of parameters , which explains why it is a convenient, widespread mathematical models in physics model in laser optics. Image Gaussian beam w40mm lambda30mm.png thumb 250px Instantaneous intensity of a Gaussian beam. Image Laser gaussian profile.svg .... The mathematical function that describes the Gaussian beam is a solution to the paraxial approximation ... of a Gaussian function, represents the complex number complex amplitude of the beam s electric ... of their axial values, respectively, math w 0 w 0 math is the Beam width or spot size waist size , math R z math is the Radius of curvature radius of curvature of the beam s wavefronts, and math zeta ... is math I r,z E r,z 2 over 2 eta I 0 left frac w 0 w z right 2 exp left frac 2r 2 w 2 z right , math where math I 0 I 0,0 math is the intensity at the center of the beam at its waist. The constant math eta , math is the Wave impedance characteristic impedance of the medium in which the beam is propagating ... Omega math . Beam parameters The geometry and behavior of a Gaussian beam are governed by a set ... more details
orphan date September 2010 An Airy beam is a non diffracting waveform which gives the appearance of curving as it travels. Physical Description A cross section of an Airy beam would reveal an area of principal intensity, with a series of adjacent, less luminous areas trailing off to infinity. In real applications, the beam is truncated so as to have a finite composition. As the beam propagates, it does not diffract, i.e., does not spread out. The Airy beam also has the characteristic of freely accelerating. As it propagates, it bends so as to form a parabolic arc. History The term Airy beam derives from the Airy integral, developed in the 1830s by Sir George Biddell Airy to explain optical caustics such as those appearing in a rainbow. ref name physorg.com http www.physorg.com news115556629.html Scientists make first observation of Airy optical beams ref The Airy waveform was first theorized in 1979 by M. V. Berry and N. L. Balz. They demonstrated a nonspreading Airy wave packet solution to the Schr dinger equation. ref http www.aims.ac.za resources 2003 courses mberry the 20papers BERRY078.PDF Nonspreading wave packets ref In 2007 researchers from the University of Central Florida were able to create and observe an Airy beam for the first time in both one and two dimensional configurations. The members of the team were Georgios Siviloglou, John Broky, Aristide Dogariu, and Demetrios Christodoulides. ref name physorg.com Mathematical Description The potential free Schr dinger equation math i frac partial Phi partial xi frac 1 2 frac partial 2 Phi partial ,s 2 0 math Has the following Airy nondispersive solution ref http scitation.aip.org getabs servlet GetabsServlet?prog normal&id ... ref math Phi xi, ,s Ai ,s xi 2 2 exp i ,s xi 2 i xi 3 12 math where math Ai math is the airy function .... successfully fabricated an Airy beam in 2007. A beam with a Gaussian distribution was modulated by a spatial ... throws a curve ball ref See also Bessel beam Notes and references reflist 2 DEFAULTSORT Airy Beam ... more details
Image Wanlockhead Beam Engine.jpg thumb The remains of a water powered beam engine at Wanlockhead File ... beam gallery.jpg thumb The cast iron beam of the 1812 Boulton & Watt engine at Crofton Pumping Station &ndash the oldest working example in the world A beam engine is a type of steam engine where a pivoted overhead beam is used to apply the force from a vertical piston to a vertical connecting rod .... Beam engines were first used to pump water out of mines or into canals, but could be used to pump water to supplement the flow for a waterwheel powering a mill factory mill . The rotative beam engine is a later design of beam engine where the connecting rod drives a flywheel, by means of a Crank mechanism crank or, historically, by means of a sun and planet gear . These beam engines could be used ... steam ship s. History The first beam engines were water powered, and used to pump water from mines. A preserved example may be seen at Wanlockhead , in Scotland . Beam engines were extensively used ... engine s. The first steam powered beam engine was developed by Thomas Newcomen . The Newcomen ... engine in his Watt steam engine , and these beam engines were used commercially in much larger numbers ... expired that others could develop modifications to improve it. The beam engine was considerably improved ... of the deep mines that existed there. Consequently the Cornish engine Cornish beam engines became world famous, as they remain the most massive beam engines ever constructed. Rotative beam engines Image Thomas Horn Beam Engine.JPG thumb A small rotative beam engine, built in 1870 by Thomas Horn to a design ... at the Bredgar and Wormshill Light Railway . In a rotative beam engine, the piston is mounted ... or beam above both the piston and flywheel . The beam is pivoted in the middle, with the cylinder ... rod connects to the opposite end of the beam to the piston rod, and then to the flywheel ... crank was employed universally. The first steam powered ships used variants of the beam engine. These marine ... more details
. When I discovered they were done 1,000 years ago, I was completely surprised. ref Carl Beam, It s All Relative Catalogue, 2005, p.8 ref Beam and his wife Ann exhibited their ceramic work together in The Painted Pottery of Ann and Carl Beam at the Maxwell Museum of Anthropology , University of New Mexico , Albuquerque, NM. Ceramic Works and Pottery Beam minored in ceramic pottery at the Kootenay ...Carl Beam R.C.A. May 24, 1943 July 30, 2005 , born Carl Edward Migwans , made Canadian art history as the first ..., is on exhibition starting October 22, 2010, recognizing Beam as one of Canada s most important ... Carl Beam.jpg right thumb 400px Artist Carl Beam Childhood Carl Beam was born Carl Edward Migwans ... . The Beam family s true name derives from miigwaans which means little feather or bird . ref ... the name Ahkideh , from aakode meaning one who is brave in the Ojibwe language . ref Ann Beam in conversation with Anong Beam, Manitoulin Island, 2008 ref He was sent to Garnier Residential School ..., Ontario , Beam entered Kootenay School of Art 1971 . He went on to earn a Bachelor of Fine Arts ..., and returned to Ontario. Early work The direction of Carl Beam s visual style was firmly established by the late seventies. In 1979 Beam met and married his wife, Ann Beam. In developing his work over the years, Beam has been accompanied by his wife, Ann, herself and artist and a former teacher at the Art ... tableau, where a dialogue of multiple images could take place . ref Ann Beam in conversation with Anong Beam, Manitoulin Island, 2008 ref At this time his photographic imagery was achieved primarily ... technique also used by Robert Rauschenberg . Living in the Southwestern United States In 1980, Beam ..., and all things art, that would continue for the next 26 years . ref Ann Beam, in conversation with Anong Beam, Manitoulin Island, 2008 ref Said Beam of the time It was in the southwest years later with Ann and Anong, who was a baby, that I saw my first Mimbres pottery Mimbres bowl, or rather a cupboard ... more details
The D Beam Controller is a Roland Corporation Roland Synthesizers interface that controls sound and effects via hand movements interacting with an infrared beam of light. Although controlled in a similar manner to a theremin , it should not be confused with one. The theremin operates with radio frequencies. It was first introduced in the Roland MC 505 in 1998. External links http www.roland.com products en exp D BEAM.html What is D Beam? http www.synthchips.com maebd.pdf Circuit diagram for D Beam components Category Roland synthesizers fr D Beam pl D Beam ... more details
mergeto Charged particle beam discuss Talk Charged particle beam Merger proposal date March 2012 Unreferenced date September 2010 Proton beams , a type of ion beam s, are the result of proton particle acceleration by means of a cyclotron or a synchrotron and can be used e.g. in Proton Beam Therapy for cancer treatment or for proton beam writing in lithography. See also Electron beam Accelerator stub Category Particle accelerators Category Plasma physics Category Lithography ... more details
In optics , a tophat or top hat beam is a laser beam with a near uniform fluence energy density within a circular disk. It is typically formed by diffractive optical element s from a Gaussian beam . Tophat beams are often used in industry, for example for laser drillin g of holes in printed circuit board s. They are also used in very high power laser systems, which use chains of optical amplifier s to produce an intense beam. See also Laser beam profiler Bessel beam Top hat Category Laser types ... more details
Unreferenced stub auto yes date December 2009 A reference beam is a laser beam used to read and write hologram s. It is one of two laser beams used to create a hologram. In order to read a hologram out, some aspects of the reference beam namely its angle of incidence , beam profile and wavelength must be reproduced exactly as when it was used to write the hologram. As a result, usually reference beams are Gaussian beam s or spherical wave beams beams that radiate from a single point which are fairly easy to reproduce. The other beam used to write a hologram is the signal beam or object beam. DEFAULTSORT Reference Beam Category Optics Category Holography optics stub es Rayo de referencia ... more details
Unreferenced stub auto yes date December 2009 A signal beam or object beam is one of at least two laser beams used to write hologram s. The signal beam is the beam that carries the information to be stored in the hologram. In the case of a holographic picture, this beam is reflected off the object being recorded, into the media. In the case of holographic data storage, the beam has some kind information encoded into it for instance, it can be sent through a Transparency optics transparency or a spatial light modulator . The other beam necessary to write a hologram is the reference beam . DEFAULTSORT Signal Beam Category Holography Category Laser applications Tech stub es Doble rayo ... more details
Unreferenced stub auto yes date December 2009 In BEAM robotics , a Climber is a robot that goes upward or downward with gradual or continuous progress on a track such as a rope or wire . BEAM robotics DEFAULTSORT Climber Beam Category BEAM robotics Category Climbing robots Robo stub ... more details
Atomic beam is special case of particle beam it is the collimated flux beam of neutral atoms. The imaging systems using the slow atomic beams can use the Fresnel zone plate Fresnel diffraction lens of a Fresnel diffraction mirror as focusing element. The imaging system with atomic beam could provide the sub micrometre resolution. See pics of the Atomic beam laboratory at http cc.ysu.edu physics astro Atomic.htm Category Particle accelerators Category Particle beams ar ... more details
Unreferenced date December 2009 A beam homogenizer is a device that smooths out the irregularities in a laser beam profile and creates a more uniform one. Most beam homogenizers use a multifaceted mirror with square facets. The mirror reflection physics reflects light at different angles to create a beam with uniform power across the whole beam profile a top hat profile . Some applications of beam homogenizers include their use with excimer laser s for making computer processing chip s and with CO2 laser CO sub 2 sub lasers for heat treating . DEFAULTSORT Beam Homogenizer Category Optical devices Category Laser science Optics stub ... 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
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