Unit of length name Bohrradius m 0.000000000052917720859 accuracy 6 In the Bohr model of the structure of an atom , put forward by Niels Bohr in 1913, electrons orbit a central atomic nucleus nucleus ... possible orbit, with lowest energy, is called the Bohrradius and is the most likely position of the electron. According to 2006 CODATA the Bohrradius of hydrogen has a value of 5.2917720859 36 e &minus ... physics.nist.gov cgi bin cuu Value?bohrrada0 title CODATA Value Bohrradius author work Fundamental ... the Bohrradius as defined above appears in equations relating to atoms other than hydrogen, where the reduced mass correction is different. If the definition of Bohrradius included the reduced ... to other atoms. The Bohrradius of the electron is one of a trio of related units of length, the other two being the Compton wavelength of the electron math lambda e math and the classical electron radius math r e math . The Bohrradius is built from the electron mass math m e math , Planck s constant ... pi alpha 2 a 0. math The Bohrradius including the effect of reduced mass can be given by the following ... and the proton added together. See also Bohr model Notes and references Reflist External links http math.ucr.edu home baez lengths.html bohrradius Length Scales in Physics the BohrRadius Category ... ca Radi de Bohr cs Bohr v polom r da Bohrradius de Bohrscher Radius es Radio de Bohr fa ... math alpha math is the fine structure constant . While the Bohr model does not correctly describe an atom, the Bohrradius keeps its physical meaning as a characteristic size of the electron cloud in a full quantum mechanics quantum mechanical description. Thus the Bohrradius is often used as a unit in atomic physics. See atomic units . Note that the definition of Bohrradius does not include the effect of reduced mass , and so it is not precisely equal to the orbital radius of the electron ... e math , math hbar math and the speed of light math c math . The classical electron radius is built ... more details
Bohr may refer to People Niels Bohr 1885 1962 , Danish atomic physicist, Nobel Prize in physics 1922 Aage Bohr 1922 2009 , Danish nuclear physicist, Nobel Prize in physics 1975, son of Niels Bohr Christian Bohr 1855 1911 , Danish physician and physiologist, father of Harald and of Niels Bohr Harald Bohr 1887 1951 , Danish mathematician, brother of Niels Bohr Other uses 3948 Bohr , asteroid named after Niels BohrBohr bug, an unusual software bug Bohr crater , a lunar crater Vallis Bohr , a lunar valley Bohr compactification , mathematical concept due to Harald BohrBohr effect , property of hemoglobin discovered by Christian BohrBohr Einstein debates , a series of epistemological debates between Niels Bohr and Albert Einstein Bohr magneton , unit of magnetic moment proposed by Niels BohrBohr model , atomic theory due to Niels BohrBohr Mollerup theorem , named after Harald Bohr and Johannes Mollerup Bohrradius , radius of atomic orbit in Bohr model Bohrium , chemical element number 107 named after Niels Bohr Niels Bohr Institute , of the University of Copenhagen disambig de Bohr fr Bohr it Bohr nl Bohr ja no Bohr pl Bohr sl Bohr ... more details
9 & 1.4619022 & & 17 & 2.7210956 end array math To add radius from area, inradius from outradius, outradius from inradius Formulas for hypercubes Radius from side The radius of a d dimensional hypercube with side s is math r frac s 2 sqrt d . math See also multicol Atomic radius Bend radiusBohrradius Filling radius in Riemannian geometry Minimum railway curve radiusRadius bone multicol ...otheruses Image CIRCLE 1.svg thumb right Circle illustration In classical geometry , a radius of a circle ... . By extension, the radius of a circle or sphere is the length of any such segment, which is half the diameter . ref name mwd1 http www.mathwords.com r radius of a circle or sphere.htm Definition of radius at mathwords.com. Accessed on 2009 08 08. ref If the object does not have an obvious center, the term may refer to its circumradius, the radius of its circumscribed circle or circumscribed sphere . In either case, the radius may be more than half the diameter, which is usually defined as the maximum ... the radius of the largest circle or sphere contained in it. The inner radius of a ring, tube or other hollow object is the radius of its cavity. For regular polygons, the radius is the same as its ... polygon is also called apothem . In graph theory , the radius graph theory radius of a graph is the minimum ... accessed on 2009 08 08. ref The name comes from Latin radius , meaning ray but also the spoke ... be used, though it rarely is. ref name radic http dictionary.reference.com browse Radius Definition of Radius at dictionary.reference.com. Accessed on 2009 08 08. ref Formulas for circles Radius from circumference The radius of the circle with perimeter circumference C is math r frac C 2 pi frac C tau . math Radius from area The radius of a circle with area A is math r sqrt frac A pi . math Radius from three points To compute the radius of a circle going through three points P sub 1 sub , P sub ... These formulas assume a regular polygon with n sides. Radius from side The radius can be computed ... more details
Otheruses Radius disambiguation IPstack Remote Authentication Dial In User Service RADIUS is a networking ... AAA protocol AAA management for computers to connect and use a network service. RADIUS was developed ... and History of RADIUS publisher Interlink Networks author John Vollbrecht year 2006 accessdate 2009 04 15 ref Because of the broad support and the ubiquitous nature of the RADIUS protocol, it is often ... downloads PDF SolutionBase RADIUS deployment scenarios.pdf title SolutionBase RADIUS ... ref RADIUS is a client server protocol that runs in the Application Layer application layer , using ... Server NAS , are all gateways that control access to the network, and all have a RADIUS client component that communicates with the RADIUS server. The RADIUS server is usually a background process ... tech note09186a00800945cc.shtml title How Does RADIUS Work? publisher Cisco author date 2006 01 19 accessdate 2009 04 15 ref RADIUS serves three functions to authenticate users or devices before ... and to account for usage of those services. AAA RADIUS servers use the AAA protocol AAA concept to manage ... in RADIUS are described in RFC 2865 while Accounting is described by RFC 2866. Authentication and authorization ... sends a RADIUS Access Request message to the RADIUS server, requesting authorization to grant access via the RADIUS protocol. ref RFC 2865 Remote Authentication Dial In User Service RADIUS ref This request ... s physical point of attachment to the RAS. The RADIUS server checks that the information is correct ..., RADIUS servers checked the user s information against a locally stored flat file database. Modern RADIUS servers can do this, or can refer to external sources commonly SQL , Kerberos protocol Kerberos , LDAP , or Active Directory servers to verify the user s credentials. File Drawing RADIUS 1812.png thumb right 350px RADIUS Authentication and Authorization Flow The RADIUS server then returns ... between the user machine and the Radius Server in a way that the access credentials are hidden ... more details
Unreferenced stub auto yes date December 2009 3948 Bohr is a small asteroid belt main belt asteroid . It was discovered by Poul Jensen astronomer Poul Jensen in 1985 . It is named after the Denmark Danish physicist Niels Bohr 1885 &ndash 1962 . MinorPlanets Navigator 3947 Swedenborg 3949 Mach MinorPlanets Footer DEFAULTSORT Bohr Category Main Belt asteroids Category Asteroids named for people Category Niels Bohr Category Astronomical objects discovered in 1985 Beltasteroid stub fa it 3948 Bohr hu 3948 Bohr pl 3948 Bohr pt 3948 Bohr sk 3948 Bohr sr 3948 Bohr ... more details
of n is 1 this gives a smallest possible orbital radius of 0.0529 nm known as the Bohrradius ... 2 m e math The smallest possible value of r in the hydrogen atom is called the Bohrradius and is equal ... electrons orbit at approximately 1 4 the Bohrradius. The outermost electron in lithium orbits ... should be at nearly one Bohrradius from the nucleus. Because the electrons strongly repel each other ... of the Bohrradius, but since Bohr worked with circular orbits, not zero area ellipses, the fact ...distinguish Bohr equation No footnotes date December 2008 small Image Bohr atom PAR.svg thumb right 310px The Rutherford Bohr model of the hydrogen atom nowrap Z 1 or a hydrogen like ion nowrap Z 1 , where ... 02 2302 1 ref The orbits in which the electron may travel are shown as grey circles their radius ... in a photon of wavelength 656 nano metre nm red light . small In atomic physics , the Bohr model , devised by Niels Bohr , depicts the atom as a small, positively charged atomic nucleus nucleus surrounded ... model 1904 , and the Rutherford model 1911 . Since the Bohr model is a quantum physics based modification of the Rutherford model, many sources combine the two, referring to the Rutherford Bohr model . Introduced by Niels Bohr in 1913, the model s key success lay in explaining the Rydberg formula ... formula had been known experimentally, it did not gain a theoretical underpinning until the Bohr model was introduced. Not only did the Bohr model explain the reason for the structure of the Rydberg ... constants. The Bohr model is a primitive model of the hydrogen atom. As a theory, it can be derived ... simplicity, and its correct results for selected systems see below for application , the Bohr model ... radiation at certain discrete frequencies. To overcome this difficulty, Niels Bohr proposed, in 1913, what is now called the Bohr model of the atom . He suggested that electrons could ... of the Bohr model Electron energy levels levels according to the Planck relation blockquote ... more details
Infobox scientist name Aage Niels Bohr box width 270px image Aage Niels Bohr.jpg image size 160px caption Aage Niels Bohr birth date Birthdate 1922 6 19 df yes birth place Copenhagen, Denmark death date ... Aage Bohr is the son of noted physicist Niels Bohr . Aage Niels Bohr IPA da nels bo Da ... Nobelprisvinderen Aage Bohr er d d Nobel Prize winner Aage Bohr has died , politiken.dk, 10 September ... laureate , and the son of the famous physicist and Nobel Prize in Physics Nobel laureate Niels Bohr . Life and career Bohr was born in Copenhagen in 1922, and grew up surrounded by physicists such as Wolfgang ... Physics now the Niels Bohr Institute at the University of Copenhagen . In 1940, shortly after the German occupation of Denmark, Bohr began his physics degree at the University of Copenhagen. In October 1943, shortly before he was to be arrested by the German police, Niels Bohr Rescue of the Danish ... Project . During this time, Aage Bohr travelled with his father, acting as his assistant and secretary ... graduation, he became an associate at the Niels Bohr Institute. Bohr worked at the Institute for Advanced ... January 1949 to August 1950. While in the US, Bohr married Marietta Soffer the couple had three children, Vilhelm, Tomas and Margrethe. Bohr became a professor at the University of Copenhagen in 1956, and, following his father s death in 1962, succeeded him as director of the Niels Bohr Institute ... liquid drop model developed by Niels Bohr amongst others . The Shell model nuclear shell model , developed ... paper. Bohr, visiting Columbia at the time, had independently come up with the same idea, and submitted ... along more general lines. Bohr later developed the idea further, in 1951 publishing a paper which comprehensively ... of the individual nucleon s. On his return to Copenhagen in 1950, Bohr began working with Ben ... which were published in 1952 53, Bohr and Mottelson demonstrated close agreement between theory and experiment ... the Atoms for Peace Award in 1969. Bohr, Mottelson and Rainwater were jointly awarded the 1975 Nobel ... more details
Infobox scientist name Niels Bohr image Niels Bohr.jpg imagesize 180px birth name Niels Henrik David Bohr birth date birth date 1885 10 7 df y birth place Copenhagen , Denmark death date death date and age ... complementarity physics Complementarity br Bohr model br Sommerfeld Bohr theory br BKS theory br Bohr Einstein debates br Bohr magneton influences Ernest Rutherford influenced Werner Heisenberg br Wolfgang ... in Physics 1922 br The Franklin Institute Awards Franklin Medal 1929 signature Niels Bohr Signature.svg footnotes Harald Bohr is his younger brother, and Aage Bohr is his son. Niels Henrik David Bohr ... the Nobel Prize in Physics in 1922. Bohr mentored and collaborated with many of the top physicists ... Project . Bohr married Margrethe N rlund in 1912, and one of their sons, Aage Bohr , grew up to be an important physicist who in 1975 also received the Nobel prize. Bohr has been described as one of the most influential scientists of the 20th century. ref Murdoch, Dugald 2000 Bohr in Newton ..., p. 26. ISBN 0 631 23020 3. ref Biography Early years Bohr was born in Copenhagen , Denmark, in 1885. His father, Christian Bohr , was professor of physiology at the University of Copenhagen it is his name which is given to the Bohr shift or Bohr effect , while his mother, Ellen Adler Bohr, came from ... Bohr , a mathematician and Olympic Games Olympic association football football er who played on the Denmark national football team Danish national team . Niels Bohr was a passionate footballer as well ... in goal. There is, however, no truth in the oft repeated claim that Niels Bohr emulated his ... www.guardian.co.uk football 2005 jul 27 theknowledge.panathinaikos title Bohr s footballing career publisher Guardian date 2005 07 27 accessdate 2010 03 10 location London ref In 1903 Bohr enrolled as an undergraduate ... the prize, and it was this success that decided Bohr to abandon philosophy and adopt physics. ref ... under Christian Christiansen he received his doctorate in 1911. As a post doctoral student, Bohr ... more details
In mathematics , the Bohr compactification of a topological group G is a compact Hausdorff space compact Hausdorff topological group H that may be canonical ly associated to G . Its importance lies in the reduction of the theory of uniformly almost periodic function s on G to the theory of continuous function s on H . The concept is named after Harald Bohr who pioneered the study of almost periodic function s, on the real line . Definitions and basic properties Given a topological group G , the Bohr compactification of G is a compact Hausdorff topological group Bohr G and a continuous homomorphism b G Bohr G which is universal property universal with respect to homomorphisms into compact Hausdorff groups this means that if K is another compact Hausdorff topological group and f G K is a continuous homomorphism, then there is a unique continuous homomorphism Bohr f Bohr G K such that f Bohr f b . Theorem . The Bohr compactification exists and is unique up to isomorphism. This is a direct application of the Tychonoff theorem . We will denote the Bohr compactification of G by Bohr G and the canonical map by math mathbf b G rightarrow mathbf Bohr G . math The correspondence G Bohr G defines a covariant functor on the category of topological groups and continuous homomorphisms. The Bohr compactification is intimately connected to the finite dimensional unitary representation theory of a topological group. The kernel algebra kernel of b consists exactly of those elements of G which cannot be separated from the identity of G by finite dimensional unitary representations. The Bohr compactification also reduces many problems in the theory of almost periodic function s on topological ... if and only if there is a continuous function f sub 1 sub on Bohr G which is uniquely determined such that math ... the Bohr compactification mapping is injective are called maximally almost periodic or MAP groups . In the case ... B b016780 DEFAULTSORT Bohr Compactification Category Topological groups Category Harmonic analysis ... more details
Unreferenced stub auto yes date December 2009 Vallis Bohr is a valley on the Moon stretching due south of the crater Einstein crater Einstein . This wide cleft has a length of about 80 kilometers , and is radial to the Mare Orientale impact basin further to the south. The selenographic coordinates of this feature are Lunar coords and quad cat 12.4 N 86.6 W globe Moon . Category Valleys on the Moon Bohr, Vallis Moon stub pl Vallis Bohr ... more details
Infobox person name Harald Bohr image Harald Bohr.jpg imagesize 164px caption Harald Bohr birth date ... at the 1908 Summer Olympics Team Competition MedalBottom Harald August Bohr 22 April 1887 22 January ... doctorate in 1910, Bohr became an eminent mathematician, founding the field of almost periodic function s. His brother was the Nobel Prize winning physicist Niels Bohr . As a student, his footballing ... Summer Olympics , where he won a silver medal. Biography Bohr was born in 1887 to Christian Bohr , a professor of physiology, and Ellen Adler Bohr, a woman from a wealthy Jewish family of local renown. ref name StAbio cite web url http www history.mcs.st andrews.ac.uk Biographies Bohr Harald.html title Harald August Bohr accessdate 2008 08 17 author J J O Connor and E F Robertson ref Harald had a close ... Bunsby in Charles Dickens Dombey and Son . ref cite news title Obituary Prof. Harald Bohr ... ref Mathematical career Like his father and brother before him, in 1904 Bohr enrolled at the University ... Bohr journal Bulletin of the American Mathemtical Society volume 58 issue 1 pages 72 75 id url http ... type pdf 1 accessdate 2008 12 21 quote doi 10.1090 S0002 9904 1952 09551 3 ref Bohr worked in mathematical ... based Edmund Landau resulted in the Bohr Landau theorem , regarding the distribution of zeroes in zeta function s. ref name StAbio Bohr worked in mathematical analysis , founding the field of almost ... death in 1951. B rge Jessen was one of his students there. In the 1930s Bohr was a leading critic ... Olympics 1908 Summer Olympics. Bohr is on the back row, fourth from right Bohr was also an excellent ... tournament was Denmark s first official international football match. Bohr scored two goals as Denmark ... athletes bo harald bohr 1.html title Harald Bohr accessdate 2008 08 18 publisher Sports Reference.com ref In the next match, the semi final, Bohr played in a 17 1 win against France national football ... Britain national football team Great Britain in the final, but lost 2 0, and Bohr won a silver ... more details
Infobox Person name Christian Bohr image Christian Bohr u016a.jpg image size caption birth name Christian Harald Lauritz Peter Emil Bohr ref cite journal last Irzhak first L. I. title Christian Bohr On the Occasion of the 150th Anniversary of His Birth journal Human Physiology volume 31 issue 3 pages 366 368 publisher MAIK Nauka Interperiodica distributed exclusively by Springer Science Business Media LLC date May 2005 url http www.springerlink.com content l982pr8225325581 fulltext.pdf doi 10.1007 s10747 005 0060 x accessdate 2008 05 22 format PDF ref birth date birth date 1855 2 14 birth place Copenhagen death date death date and age 1911 2 3 1855 2 14 death place Copenhagen death cause resting ... party boards religion spouse partner children Jenny Bohr 1883 1933 ref cite web title Niels Bohr ... 2008 05 22 ref br Niels Bohr 1885 1962 br Harald Bohr 1887 1951 parents relations signature website footnotes Christian Harald Lauritz Peter Emil Bohr 1855 1911, both in Copenhagen was a Denmark Danish physician, and father of the famous physicist Niels Bohr , as well as the famous mathematician Harald Bohr . He married Ellen Adler in 1881. Personal life He wrote his first scientific paper, Om ... location New York isbn 0 671 44133 7 ref Christian Bohr is buried in the Assistens Cemetery Copenhagen Assistens Kirkeg rd . Physiology In 1891, he was the first to characterize dead space . ref Bohr ... 100 1 1 R2 article ref In 1903, Christian Bohr described the phenomenon, now called the Bohr effect ... ions and carbon dioxide . References references Fredericia, L.S. 1932 Christian Bohr, pp. 173 ... Bohr, Christian ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 1855 02 14 PLACE OF BIRTH Copenhagen DATE OF DEATH 1911 02 03 PLACE OF DEATH Copenhagen DEFAULTSORT Bohr, Christian Category 1855 births ... of Copenhagen faculty Category Science teachers Category People from Copenhagen Category Niels Bohr da Christian Bohr de Christian Bohr nl Christian Bohr no Christian Bohr sv Christian Bohr ... more details
lunar crater data latitude 12.8 N or S N longitude 86.4 E or W W diameter 71 km depth Unknown colong 87 eponym Niels Bohr Bohr is a moon lunar Impact crater crater that is located near the western moon lunar limb, in the area that is affected by libration s. It is attached to the southwestern rim of the larger, eroded Vasco da Gama crater Vasco da Gama formation, and to the southeast of the crater Einstein crater Einstein . The rim of Bohr is worn and eroded, and a pair of small, bowl shaped craters lies across the western rim. The rim to the northeast has been shored up by the adjacent Vasco da Gama, but the remainder forms an irregular ring of rugged ground. To the southwest of Bohr is a valley formation following a path in a north south direction. This long cleft is most likely associated with the formation of the Mare Orientale farther to the south. References Lunar crater references Moon crater stub Category Impact craters on the Moon bg da Bohr m nekrater fr Bohr crat re ... more details
J rgen Bohr born December 5, 1953 is a West Germany West German Canoe racing sprint canoer who competed in the mid 1970s. He finished ninth in the Canoeing at the 1976 Summer Olympics Men s K 4 1000 metres K 4 1000 m event at the 1976 Summer Olympics in Montreal . References http www.sports reference.com olympics athletes bo jurgen bohr 1.html Sports Reference.com profile DEFAULTSORT Bohr, Jurgen Category 1953 births Category Canoeists at the 1976 Summer Olympics Category German canoeists Category Living people Category Olympic canoeists of West Germany Germany canoe bio stub ... more details
class wikitable align right style text align center The value of Bohr magneton system of units value unit SI ref cite web title CODATA value Bohr magneton url http physics.nist.gov cgi bin cuu Value?mub work The NIST Reference on Constants, Units, and Uncertainty publisher NIST accessdate 2009 12 22 ... Oe sup 1 sup eV ref cite web title CODATA Bohr magneton in eV T url http physics.nist.gov cgi bin ... physics , the Bohr magneton symbol sub B sub is a physical constant and the natural unit for expressing an electron magnetic dipole moment . The Bohr magneton is defined in International System of Units ... is approximately one Bohr magneton. ref cite book author Anant S. Mahajan, Abbas A. Rangwala year ... frequency should be equal to h , Richard Gans computed a value that was twice as large as the Bohr ... L. Heilbron author2 Thomas Kuhn authorlink2 Thomas S. Kuhn year 1969 title The genesis of the Bohr atom ... 1 pages 151 doi ref the value is referred to as the Bohr Procopiu magneton in Romanian scientific literature ... 2010 11 03 ref The Bohr magneton is the magnitude of the magnetic dipole moment of an orbiting ... of one . According to the Bohr model , this is the ground state , i.e. the state of lowest possible ... physicist Niels Bohr as a consequence of his Bohr model atom model . ref name Heilbron ref cite book author Abraham Pais authorlink Abraham Pais year 1991 title Niels Bohr s Times, in physics, philosophy ... gave the Bohr magneton its name in an article where he contrasted it with the magneton of the experimentalists ... magneton Category Atomic physics Category Niels Bohr Category Physical constants Category Magnetism Category Fundamental physics concepts ar ca Magnet de Bohr cs Bohr v magneton de Bohrsches Magneton es Magnet n de Bohr fr Magn ton de Bohr it Magnetone di Bohr nl Bohrmagneton ja pl Magneton Bohra pt Magnet o de Bohr ru sk Bohrov magnet n sl Bohrov magneton sr sv Bohrmagnetonen uk vi Bohr magneton zh ... more details
Infobox person image imagesize name Jos Bohr birth date Birth date 1901 9 3 birth place Bonn , Germany death date Death date and age 1994 5 29 1901 9 3 death place Oslo , Norway othername occupation Film director br Film producer br Actor br Screenwriter yearsactive 1919 in film 1919 1969 in film 1969 Jos Bohr 3 September 1901 &ndash 29 May 1994 was a Chile an film director , film producer producer , actor and screenwriter . He directed 35 films between 1919 in film 1919 and 1969 in film 1969 . Selected filmography Sombras de gloria 1930 Si mis campos hablaran 1947 External links IMDB name 0092168 Jos Bohr CinemaofChile Use dmy dates date September 2010 Metadata see Wikipedia Persondata Persondata NAME Bohr, Jos ALTERNATIVE NAMES SHORT DESCRIPTION Film director , Film producer , Actor , Screenwriter DATE OF BIRTH 1901 9 3 PLACE OF BIRTH Bonn , Germany DATE OF DEATH 1994 5 29 PLACE OF DEATH Oslo , Norway DEFAULTSORT Bohr, Jose Category 1901 births Category 1994 deaths Category Chilean actors Category Chilean film directors Category Chilean film producers Category Chilean film actors Category Chilean screenwriters Category Chilean people of German descent Category People from Bonn Chile film director stub ... more details
The Bohr effect is dependent on cooperative interactions between the heme s of the hemoglobin ... , does not exhibit the Bohr effect. Hemoglobin mutants with weaker cooperativity may exhibit a reduced Bohr effect. In the Hiroshima variant hemoglobinopathy , cooperativity in hemoglobin is reduced, and the Bohr effect is diminished. During periods of exercise, the mutant hemoglobin has ... physiology Category Respiratory physiology de Bohr Effekt et Bohri efekt es Efecto Bohr fr Effet Bohr hr Bohrov efekt id Efek Bohr it Effetto Bohr he nl Bohr effect ja pl Efekt Bohra pt Efeito de Bohr ro Efect Bohr zh ... more details
The Bohr equation describes the amount of Dead space Physiological Dead Space in a person s lungs. This is given as a ratio of dead space to tidal volume . It differs from Dead space Anatomical Dead Space as measured by Fowler s method as it includes Pulmonary alveolus alveolar dead space. It is named after Christian Bohr , Denmark Danish physician 1855 1911 . Description The Bohr equation is used to quantify the ratio of physiological dead space to the total tidal volume, and gives an indication of the extent of wasted ventilation. It is stated as follows ref Respiratory Physiology The Essentials, J. West , 2005, 7th ed, Page 169 ref math frac mathbf V mathrm d mathbf V mathrm t frac mathrm P mathrm a mathrm CO mathrm 2 mathrm P mathrm e mathrm CO mathrm 2 mathrm P mathrm a mathrm CO mathrm 2 math Derivation Its derivation is based on the fact that only the ventilated gases involved in gas exchange math V a math will produce Carbon dioxide CO sub 2 sub . Because the Total tidal volume math V t math is made up of math V a V d math alveolar volume dead space volume , we can substitute math V a math for math V t V d math . Initially, Bohr tells us Vt Vd Va. The Bohr equation helps us find the amount of any expired gas, CO2 , N sub 2 sub , O sub 2 sub , etc. In this case we will focus on CO2 . Defining Fe as the fraction of expired CO2 and Fa as the fraction of expired alveolar CO2 , and Fd as fraction of expired dead space volume CO2 , we can say br Vt x Fe Vd x Fd Va x Fa . This merely means all the CO2 expired comes from two parts, the dead space volume and the alveolar volume. br If we suppose that Fd 0 since carbon dioxide concentration in air is normally negligible , then we can say that ref Davies, Andrew, and Carl Moores. The Respiratory System. Systems of the body. Edinburgh Churchill Livingstone, 2003. ref math V t times F e V a times F a math Where F sub e sub ... Physiology hu Bohr egyenlet ... more details
Wikt refer Radius of curvature optics Radius of curvature applications , in geodesy and materials science The reciprocal of the curvature , in differential geometry Radius , for a sphere lingo The radius of the osculating circle in differential geometry of curves Minimum railway curve radius dab ... more details
Wiktionarypar radiusRadius is a straight line or distance from the center to the edge of something. It may also refer to In anatomy Radius bone , one of the two bones in a forearm In mathematics and technology Any of these can be called just radius in the respective contexd Radius graph theory , the minimum distance from a graph s node to the node that is farthest from it Radius of curvature , a measure of how gently a curve bends Bend radius , the minimum radius one can bend a pipe, tube, sheet, cable or hose without damage Radius of convergence in calculus , the radius of the region where a complex power series converges Radius of gyration , the root mean square distance from a set of points or masses to a given center The radial coordinate in a Polar coordinate system 2D Cylindrical coordinate system 3D Spherical coordinate system 3D The inradius or circumradius of a shape As a name RADIUS , a network authentication protocol Radius computer , a computer hardware firm Radius music ensemble , a London music ensemble founded by Tim Benjamin Radius band , a band from Los Angeles, California Radius comics , a superhero in the Marvel Comics universe Radius Chrono Cross Radius Chrono Cross , a character in Chrono Cross See also Circle Ellipse Sphere Diameter disambig ca Radi cv da Radius flertydig de Radius Begriffskl rung fr Radius gl Raio it Radius he la Radius nl Radius ja ru sk Polomer tr Radius ... more details
the model itself is now obsolete, the Bohrradius for the hydrogen atom is still regarded as an important ... density as shades of gray. The atomic radius of a chemical element is a measure of the size of its atoms ... non equivalent definitions of atomic radius. Depending on the definition, the term may apply ... measurements, or computed from theoretical models. Under some definitions, the value of the radius ... 0.3 and 3 angstrom s. Therefore, the radius of an atom is more than 10,000 times the nuclear radiusradius of its nucleus 1 10 femtometre fm , ref name Basdevant cite book title Fundamentals in Nuclear ... der Waals radius . For many purposes, atoms can be modeled as spheres. This is only a crude approximation ... metal s to the noble gases and increase down each group column . The radius increases sharply between ... and confirmation of Quantum mechanics quantum theory . Definitions atomic radius Widely used definitions of atomic radius include Van der Waals radius in principle, half the minimum ... of the Chemical Bond location Ithaca, NY publisher Cornell University Press ref Ionic radius the nominal radius of the ions of an element in a specific ionization state, deduced from the spacing ... the sum of their ionic radii. ref name Pauling1945 Covalent radius the nominal radius of the atoms of an element ... name Pauling1945 Metallic radius the nominal radius of atoms of an element when joined to other atoms by metallic bond s. citation needed date August 2009 Bohrradius the radius of the lowest energy electron orbit predicted by Bohr model of the atom 1913 . ref name bohrI Niels Bohr 1913 , On the Constitution ... dbserv compas src bohr13 eng.pdf Online version . ref ref name bohrII Niels Bohr 1913 , On the Constitution ... File Atomic number to radius graph.png thumb A graph showing the calculated atomic radius and the atomic number of elements 1 100. Accuracy of 5 pm. The way the atomic radius varies with increasing atomic ... are generally filled in order of increasing radius, since the negatively electric charge charged electrons ... more details
Image Bendradius.svg thumb 350px Bend radius Bend radius , which is measured to the inside curvature , is the minimum radius one can bend a pipe material pipe , tubing material tube , Sheet metal sheet , cable or hose tubing hose without kinking it, damaging it, or shortening its life. The smaller the bend radius, the greater is the material flexibility as the radius of curvature applications radius of curvature decreases , the curvature increases . The diagram below illustrates a cable with a seven centimeter bend radius. The minimum bend radius is the radius below which an object such as a cable should not be bent. Fiber optics The minimum bend radius is of particular importance in the handling of fiber optic cable s, which are often used in telecommunications . The minimum bending radius will vary with different cable designs. The manufacturer should specify the minimum radius to which the cable may safely be bent during installation, and for the long term. The former is somewhat shorter than the latter. The minimum bend radius is in general also a function of tensile stresses, e.g., during installation, while being bent around a sheave while the fiber or cable is under tension. If no minimum bend radius is specified, one is usually safe in assuming a minimum long term low stress radius not less than 15 times the cable diameter. Beside mechanical destruction, another reason why one should avoid excessive bending of fiber optic cables is to minimize microbending and macrobending losses. Microbending causes light attenuation induced by deformation of the fiber while macrobending causes the leakage of light through the fiber cladding and this is more likely to happen where the fiber is excessively bent. Microbending is explained better at photonics.com http www.photonics.com directory dictionary lookup.asp?url lookup&entrynum 3235&letter m Other applications Strain gauge s also have a minimum bending radius. This radius is the radius below which the strain gauge will malfunction ... more details
orphan date February 2009 Radius Gold Inc. TSXV RDU is a Canada Canadian junior exploration company. Sources http www.radiusgold.com Radius Gold Company Homepage Category Gold mining companies Canada company stub ... more details
Unreferenced stub auto yes date December 2009 A blast radius is the distance from the source that will be affected when an explosion occurs. A blast radius is often associated with, but not limited to, bomb s, Land mine mines , explosive projectiles 40 mm grenade propelled grenades , and other weapons with an explosive charge. For instance, a 2000 pounds Mk 84 bomb has a blast radius of 400 yards 365 metres . DEFAULTSORT Blast Radius Category Explosive weapons Explosive stub ... more details
Italic title Taxobox name Vexillum radius image image caption regnum Animal ia phylum Mollusca classis Gastropoda unranked familia clade Caenogastropoda br clade Hypsogastropoda br clade Neogastropoda superfamilia Muricoidea familia Costellariidae subfamilia genus Vexillum gastropod Vexillum subgenus Costellaria species V. radius binomial Vexillum radius binomial authority Reeve, 1845 synonyms ref synonyms Vexillum radius is a species of small sea snail , marine gastropod mollusk in the family biology family Costellariidae , the ribbed miters. ref name WoRMS WRMS species 416754 Vexillum radius Reeve, 1845 24 April 2010 ref Description Empty section date April 2010 Distribution Empty section date April 2010 References reflist External links Use dmy dates date January 2011 DEFAULTSORT Vexillum Radius Category Costellariidae Costellariidae stub vi Vexillum radius ... more details
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