Unreferenced auto yes date December 2009 Orphan date December 2009 Clean configuration is the flight configuration of a fixed wing aircraft when its external equipment is retracted to minimize drag and thus maximize airspeed for a given power setting. For most airplane s, clean configuration means simply that the wing Flap aircraft flaps and landing gear are retracted as these are the cause of drag due to the lack of Aerodynamic streamlined shape . On more complex airplanes, it also means that other devices on the wings such as slats, spoilers, and leading edge flaps are retracted. Clean configuration is used for normal cruising at altitude during which lift, or rise in altitude, is not needed. DEFAULTSORT Clean Configuration Category Aerospace engineering Aviation stub ... more details
Image Mutually inscribed pentagons.svg thumb The Desargues configuration viewed as a pair of mutually .... In geometry , the Desargues configuration is a Configuration geometry configuration of ten points ... , and closely related to Desargues theorem , which proves the existence of the configuration ... form an instance of the Desargues configuration. Symmetries Although Desargues theorem chooses different roles for these ten lines and points, the Desargues configuration itself is more symmetry symmetric .... The Desargues configuration has a symmetry group of order 120 that is, there are 120 different ways of permuting the points and lines of the configuration in a way that preserves its point line incidences. One way of constructing the same configuration in a way that makes these symmetries more ... configuration as the set of ten points where three planes meet and the set of ten lines where two planes ... of the configuration. The Desargues configuration is self dual, meaning that it is possible to find a correspondence from points of one Desargues configuration to lines of a second configuration, and from lines of the first configuration to points of a second configuration, in such a way that all of the configuration ... configuration, a graph having one vertex for each point or line in the configuration, is known as the Desargues graph . Because of the symmetries and self duality of the Desargues configuration, the Desargues ... A non Desargues 10 sub 3 sub 10 sub 3 sub configuration. As a projective configuration the Desargues configuration has the notation 10 sub 3 sub 10 sub 3 sub , meaning that each of its ten points ... configuration, with a vertex for each point and line of the configuration and an edge for every ... per line that are not isomorphic incidence isomorphic to the Desargues configuration, one of which ... with it. But in the Desargues configuration, these three points are always collinear ... of perspectivity while in the other configuration shown in the illustration these three points ... more details
Image ConfiurationActivityModel.png right thumb 400px Top level Configuration Management Activity model Configuration management CM is a process for establishing and maintaining consistency of a product ...?ident number 202239 title MIL HDBK 61A, Military Handbook Configuration Management Guidance publisher ... ANSI EIA 649 A Standard NATIONAL CONSENSUS STANDARD FOR CONFIGURATION MANAGEMENT title ANSI EIA 649B, National Consensus Standard for Configuration Management publisher TechAmerica date 01 ... 2007 09 22 ref ref cite web title Configuration Management and the Federal Transportation Administration ... FOR CONFIGURATION MANAGEMENT title ANSI EIA 649B, National Consensus Standard for Configuration Management ... of items and systems reflects their true configuration. A complete CM program includes provisions for the storing ... CM. History of CM Configuration Management CM as a formal management approach was developed by the United ... config management.pdf title Configuration Management Compliance Validation Critical Review and Technology ... alone discipline. Overview of configuration management CM is the practice of handling changes systematically ... lifecycle . The CM process for both hardware and software configuration items comprises five distinct ... baselining processes Configuration control and Configuration status accounting Naming conventions Audits and Reviews and Subcontractor Vendor CM requirements. Configuration Identification CI ... and Status Accounting CSA of a system and its configuration items CIs throughout their lifecycle development, production, deployment, and operational support until disposal. Configuration Control ..., firmware, software, and documentation. Configuration Status Accounting Includes the process of recording and reporting configuration item descriptions e.g., hardware, software, firmware, etc. and all ... of baseline configuration and approved modifications can be quickly determined. Configuration ..., and functional, allocated, and product baselines. Configuration audits verify the system and subsystem ... more details
The configuration of a molecule is the permanent geometry that results from the space spatial arrangement of its chemical bond bonds . The ability of the same set of atoms to form two or more molecules with different configurations is stereoisomerism . Used as drugs, compounds with different configuration normally have different physiological activity, including the desired pharmacological effect, the toxicology and the metabolism. ref name Ariens Everhardus Ari ns Stereochemistry, a basis for sophisticated nonsense in pharmacokinetics and clinical pharmacology , European Journal of Clinical Pharmacology 26 1984 663 668, DOI 10.1007 BF00541922 . ref Configuration is distinct from chemical conformation , a shape attainable by bond rotation s. See also Chemical conformation Absolute configuration External links http www.iupac.org goldbook C01249.pdf The IUPAC definition of configuration References references chem stub Category Molecules Category Stereochemistry de Konfiguration Chemie fa he nl Configuratie scheikunde ru sv Konfiguration ... more details
File Hesse configuration.svg thumb 240px The Hesse configuration, with four of its lines the four broken diagonal s of the 3× 3 array of points drawn as curves In geometry, the Hesse configuration ... 28 pages 68 96 . ref is a configuration of 9 points and 12 lines with three points per line and four ... . Description The Hesse configuration has the same incidence relations as the lines and points of the Affine ... of the Hesse configuration may be identified with ordered pair s of numbers modulo 3, and the lines of the configuration may correspondingly be identified with the triples of points x , y satisfying a linear equation nowrap 1 ax by c mod 3 . Alternatively, the points of the configuration ... of the configuration, one line is horizontal, one vertical, and two are diagonals or broken diagonals. Each line contains three points, so in the language of Configuration geometry configurations the Hesse configuration has the notation 9 sub 4 sub 12 sub 3 sub . Related configurations Removing any one point and its four incident lines from the Hesse configuration produces another configuration of type 8 sub 3 sub 8 sub 3 sub , the M bius Kantor configuration . ref citation last Dolgachev ... configuration, the 12 lines may be grouped into four triples of parallel non intersecting lines. Removing from the Hesse configuration the three lines belonging to a single triple produces a configuration of type 9 sub 3 sub 9 sub 3 sub , the Pappus configuration . ref name cox50 ref name ... first Steven H. last Cullinane year 2011 . ref The Hesse configuration may in turn be augmented by adding ... new points, to form a configuration of type 13 sub 4 sub 13 sub 4 sub , the set of points and lines of the projective plane over the three element field. Realizability The Hesse configuration can be realized .... Revue Internationale. 2e S rie volume 55 issue 3 pages 235 273 . ref The Hesse configuration shares with the M bius Kantor configuration the property of having a complex realization but not being ... more details
File Reye configuration.svg thumb 400px The Reye configuration In mathematics, the Reye configuration , introduced by harvs first Theodor last Reye authorlink Theodor Reye year 1882 txt , is a configuration of 12 points and 16 lines. Each point of the configuration belongs to four lines, and each line contains three points. Therefore, in the notation of Configuration geometry configurations , the Reye configuration is written as 12 sub 4 sub 16 sub 3 sub . Realization The Reye configuration can be realized ... figures to each other in four different ways, and the other four points of the configuration ... an instance of the Reye configuration harv Hilbert Cohn Vossen 1952 . The Reye configuration can also be realized by points and lines in the Euclidean plane , by drawing the three dimensional configuration in three point perspective . An 8 sub 3 sub 12 sub 2 sub configuration of eight points in the real ... to form the Reye configuration if and only if the eight points are a perspective projection of a parallelepiped ... configuration underlies some of the proofs of the Bell Kochen Specker theorem about the non existence of hidden variables in quantum mechanics. Related configurations The Pappus configuration ..., analogous to the interpretation of the Reye configuration involving desmic tetrahedra. If the Reye configuration is formed from a cube in three dimensional space, then there are 12 planes containing ... a 16 sub 3 sub 12 sub 4 sub configuration, the dual of the Reye configuration. The original Reye configuration and its dual together form a 28 sub 4 sub 28 sub 4 sub configuration harv Gr nbaum Rigby ... 2005 . References Citation last1 Aravind first1 P. K. title How Reye s configuration helps in proving ... pages 336 346 title The real configuration 21 sub 4 sub volume 41 year 1990 . Citation last1 Hilbert ... 8284 1087 8 year 1952 contribution 22. Reye s configuration pages 134 143 . See also pp. 154 157. citation ... Contemporanea mr 2592512 pages 21 27 title The generalized Reye configuration url http amc.imfm.si ... more details
A system configuration SC in systems engineering defines the computers, processes, and devices that compose the system and its boundary. More general the system configuration is the specific definition ... configuration can be used to relate to a model declarative for abstract generalized systems. In this sense the usage of the configuration information is not tailored to any specific usage, but stands ... and problems, and make upgrading a nightmare. Sample Configuration The following is a basic SC XML System Configuration code system configuration site name MyHouse hosts host ref name host1 hosts ... profile component name user setup component component name mysql db component system configuration code ... mysql , with appropriate parameters. Notice that the configuration schema requires no XML tags that are Microsoft ... for how the data is to be used. This is the hallmark for a good system configuration ... and must be managed and well thought out to prevent breaking the idea of the system configuration. Usage ... deployment deployment & System configuration Operations operations . Documentation One use of the configuration ..., thus complicating the data model. It is important to distinguish between configuration data ... the bloating of the data can reduce its usefulness. For example, the system configuration is not a place to record historical changes, or descriptions of design and intent for the various elements. The configuration ... it was . Deployment Deployment involves interpreting a configuration data set and acting on that data ... that the configuration is in effect. Examples include a Perl library launched from the command line to read the configuration and begin launching processes on the local or remote hosts ... the configuration data, and perform deployment like actions. Operations When the system is in operation, there may be uses for the configuration data by specific kinds of services in the system. For example, a Secnager may access the configuration to acquire the MD5 passwords for the user accounts ... more details
Configuration design is a kind of design where a fixed set of predefined components that can be interfaced connected in predefined ways is given, and an assembly i.e. designed artifact of components selected from this fixed set is sought that satisfies a set of requirements and obeys a set of constraints. The associated design configuration problem consists of the following three constituent tasks Selection of components, Allocation of components, and Interfacing of components design of ways the components interface connect with each other . Types of knowledge involved in configuration design include Problem specific knowledge Input knowledge Requirements Constraints Technology Case knowledge Persistent knowledge knowledge that remains valid over multiple problem solving sessions Case knowledge Domain specific, method independent knowledge Method specific domain knowledge Search control knowledge References Mittal, S. and Frayman, F. 1989 , Towards a generic model of configuration tasks , Proceedings of the 11th IJCAI, San Mateo, CA, USA, Morgan Kaufmann, pages 1395 1401. Bob Wielinga B. Wielinga and G. Schreiber 1997 , Configuration Design Problem Solving , IEEE Intelligent Systems, Vol. 12, pages 49 56. Levin, M. Sh. 2009 , Combinatorial optimization in system configuration design , Autom. Remote Control, Vol. 70 Num. 3, Plenum Press, New York, NY, USA, pages 519 561. Category Design ... more details
File Pappus hexagon.svg thumb 240px The Pappus configuration In geometry , the Pappus configuration is a Configuration geometry configuration of nine points and nine lines in the Euclidean plane , with three points per line and three lines through each point. ref citation last Gr nbaum first Branko authorlink Branko Gr nbaum isbn 978 0 8218 4308 6 location Providence, RI mr 2510707 page xiv 399 publisher American Mathematical Society series Graduate Studies in Mathematics title Configurations of points and lines volume 103 year 2009 . ref It is named after Pappus of Alexandria Pappus s hexagon theorem states that every two triples of collinear points ABC and abc none of which lie on the intersection of the two lines can be completed to form a Pappus configuration, by adding the six lines Ab , aB , Ac , aC , Bc , and bC , and their three intersection points nowrap 1 X Ab aB , nowrap 1 Y Ac aC , and nowrap 1 Z Bc bC . According to Pappus theorem, the resulting system of nine points and eight lines always has a ninth line containing the three intersection points X , Y , and Z . ref harvtxt Gr nbaum 2009 , p. 9. ref File Pappus graph LS.svg thumb The Pappus graph The Levi graph of the Pappus configuration is known as the Pappus graph . It is a bipartite graph bipartite symmetric graph ... configuration can also be derived from two triangles XcC and YbB that are in perspective with each ... different ways, together with their three centers of perspectivity Z , a , and A . The points of the configuration are the points of the triangles and centers of perspectivity, and the lines of the configuration are the lines through corresponding pairs of points. The Desargues configuration can also be defined in terms of perspective triangles, and the Reye configuration can be defined analogously ... these four points to form a Pappus configuration in such a way that all nine points lie on the curve ... Theory volume 34 year 1987 . ref References reflist External links mathworld title Pappus Configuration ... more details
Image R S configuration.png 300px right Absolute configuration An absolute configuration in stereochemistry is the spatial arrangement of the atom s of a chirality chemistry chiral molecular entity or group and its stereochemical description e.g. R or S . ref GoldBookRef title absolute configuration url http goldbook.iupac.org A00020.html ref Absolute configurations for a chiral molecule in pure form are most often obtained by X ray crystallography . All enantiomerically pure chiral molecules crystallise in one of the 65 Sohncke Group s Chiral Space Groups . Alternative techniques are Optical rotatory dispersion , Ultraviolet visible spectroscopy of stereoisomers vibrational circular dichroism and the use of chiral shift reagent s in proton NMR . When the absolute configuration is obtained the assignment of R or S is based on the Cahn Ingold Prelog priority rule s. Absolute configurations are also relevant to characterization of crystal s. Until 1951 it was not possible to obtain the absolute configuration of chiral compounds. ref Organic Chemistry 4th Edition Paula Y. Bruice ref It was at some time decided that glyceraldehyde was the R enantiomer. The configuration of other chiral compounds was then related to that of glyceraldehyde by sequences of chemical reaction s. For example glyceraldehyde 1 was related to glyceric acid 2 oxidation by mercury oxide which in turn was related to isoserine 3 nitric acid oxidation and bromide 4 and lactic acid 5 zinc reduction . Because the chemical ... in absolute configuration In 1951 Johannes Martin Bijvoet Bijvoet for the first time ... scattering , to determine absolute configuration. ref Determination of the Absolute Configuration ... and from its configuration R,R it was deduced that the original guess for glyceraldehyde was correct. See also Molecular configuration References Reflist DEFAULTSORT Absolute Configuration Category Stereochemistry Link FA pl fr Configuration absolue nl Absolute configuratie pl Konfiguracja absolutna ... more details
Configuration graphs are a theoretical tool used in computational complexity theory to prove a relation between Graph mathematics graph reachability and Computational complexity theory Complexity classes complexity classes . Definition A theoretical computational model, like Turing machine or finite automata , explains how to do a computation. The model explains both what is an initial configuration of the machine and which steps can be taken to continue the computation, until we eventually stop. A configuration , also called an Instantaneous Description ID is a finite representation of the machine at a given time. For example, for a finite automata and a given input, the configuration will be the current state and the number of read letters, for a Turing machine it will be the state, the content of the tape and the position of the head. A configuration graph is a directed labeled graph where the label of the vertices are the possible configurations of the models and where there is an edge from one configuration to another if it correspond to a computational step of the model. The initial and accepting configuration s of the machine are special vertices of the configuration graph. The computation accepts if and only if there is a path from an initial vertex to an accepting vertex. Useful property If the computation is deterministic then from any configuration there is at most one possible step, so the graph is of out degree 1, and there is exactly one initial state. Once we add a dummy initial vertex with an edge to every initial vertex and a dummy accepting vertex with an edge .... It is also possible to have finite graphs on finite automata , the configuration is composed of the position of the head and the current state, so the configuration graph is of size math O n math . Use ... in space which is logarithmic in the size of the input, and since the configuration of the Turing ... for a deterministic model whose configuration are of space which is logarithmic in the size of the input ... more details
File Perles configuration.svg thumb The Perles configuration In geometry, the Perles configuration is a configuration of 9 points and 9 lines that can be realized in the Euclidean plane but for which every realization has at least one irrational number as one of its coordinates. It is not a projective configuration , however, because its points and lines do not all have the same number of incidences as each other. It was introduced by Micha Perles in the 1960s. One way of constructing the Perles configuration is to start with a regular pentagon and its five diagonals, which form the sides of a smaller regular pentagon within the initial one. The nine points of the configuration consist of four out of the five vertices of each pentagon and the shared center of the two pentagons the two missing pentagon vertices are chosen to be collinear with the center. The nine lines of the configuration consist of the five lines that are diagonals of the outer pentagon and sides of the inner pentagon, and the four lines that pass through the center and through corresponding pairs of vertices from the two pentagons. Every realization of this configuration in the real projective plane is equivalent, under a projective transformation , to a realization constructed in this way from a regular pentagon. Therefore, in every realization, there are four points having the same cross ratio as the cross ratio of the four collinear points in the realization derived from the regular pentagon. But, these four points have math 1 varphi math as their cross ratio, where math varphi math is the golden ratio ... ratio, so the Perles configuration cannot be realized by rational points. Branko Gr nbaum has conjectured that every configuration that can be realized by rational but not irrational numbers has at least nine points if so, the Perles configuration would be the smallest possible irrational configuration of points and lines. ref harvtxt Gr nbaum 2003 . ref Perles used his configuration to construct ... more details
In geometry, the Kummer configuration , named for Ernst Kummer , is a geometric configuration of 16 points and 16 planes such that each point lies on 6 of the planes and each plane contains 6 of the points. The 16 nodes and 16 trope mathematics trope s of a Kummer surface form a Kummer configuration. References Citation authorlink R. W. H. T. Hudson last1 Hudson first1 R. W. H. T. title Kummer s quartic surface publisher Cambridge University Press series Cambridge Mathematical Library isbn 978 0 521 39790 2 id MathSciNet id 1097176 year 1990 Category Configurations Category Algebraic geometry ... more details
projective geometry , a configuration in the plane consists of a finite set of points, and a finite ... is incident to the same number of points. ref In the literature, the terms projective configuration harv Hilbert Cohn Vossen 1952 and tactical configuration of type 1,1 harv Dembowski 1968 are also used ... graph theory girth of the corresponding bipartite graph the Levi graph of the configuration must be at least six. Notation A configuration in the plane is denoted by p sub sub ... p sub sub sub sub does not determine a projective configuration up to incidence structure ... the Pappus configuration and two less notable configurations. In some configurations, p ... Image Non Desargues configuration.svg 240px thumb right A 10 sub 3 sub configuration that is not incidence isomorphic to a Desargues configuration Notable projective configurations include the following 1 sub 1 sub , the simplest possible configuration, consisting of a point incident to a line .... More generally any polygon of n sides forms a configuration of type n sub 2 sub 4 sub 3 sub 6 .... 7 sub 3 sub , the Fano plane . This configuration exists as an abstract incidence geometry , but cannot be constructed in the Euclidean plane . 8 sub 3 sub , the M bius Kantor configuration . This configuration ... nontrivial solutions in complex number s. 9 sub 3 sub , the Pappus configuration . 9 sub 4 sub 12 sub 3 sub , the Hesse configuration of nine inflection point s of a cubic curve in the complex projective plane and the twelve lines determined by pairs of these points. This configuration shares with the Fano ... that they cannot be given real number coordinates harv Kelly 1986 . 10 sub 3 sub , the Desargues configuration ... surface 15 sub 3 sub , the Cremona Richmond configuration , formed by the 15 lines complementary to a double six and their 15 tangent planes 12 sub 4 sub 16 sub 3 sub , the Reye configuration . 16 sub 6 sub , the Kummer configuration . 60 sub 15 sub , the Klein configuration . Duality of configurations ... more details
Cleanup date July 2010 The GlobalPlatform UICC configuration is a configuration of the GlobalPlatform Card specification v2.2 to standardized a minimum interoperability for Subscriber Identity Module SIM USIM products for supporting remote application management via OTA. The GlobalPlatform UICC Configuration outlines a common and neutral environment to facilitate the secure delivery and management over the air OTA of new and creative mobile services to consumers. GlobalPlatform Card specification V2.2 http www.globalplatform.org specificationscard.asp has been published in March 2006. It provides dynamic post issuance card management, including dynamic addition & modification of applications.This specification defines card components, command sets, transaction sequences and interfaces. The specification is completely neutral in relation to hardware, operating system, vendor and application, making it applicable to any type of application and industry. It provides dynamic post issuance card management, including dynamic addition & modification of applications. A key feature of the UICC Configuration is its flexibility, which enables the issuer to select the services to be offered to third ..., this configuration also allows the actors involved in the delivery of a mobile implementation to use ... , and trusted service managers. Content of this standard Three types of Security Domains exist for this configuration ... into GlobalPlatform s UICC Configuration. This cross market contribution has been vital in achieving ... specifies configuration requirements for implementing GlobalPlatform Specifications on the UICC ... the UICC configuration. Further information on NFC is available at near field communication NFC . Deployment UICC configuration has been endorsed by ETSI in the recent release of the TC 102.225 rel7 Pegasus Project http www.payezmobile.com AEPM will rely on the UICC configuration StoLPaN http www.stolpan.com ... Access UICC configuration is available at http www.globalplatform.org specificationscard.asp Card ... more details
Multiple issues wikify February 2012 orphan February 2012 refimprove December 2011 unreliable sources December 2011 Construction by Configuration CbC ref Sommerville Ian 2008 . Construction by Configuration Challenges for Software Engineering. Research and Practice. St Andrews, Scotland. ref is a process defined by Ian Sommerville academic Ian Sommerville in 2008 for the adoption of a Commercial off the shelf systems COTS in an organization. This can range from simple parameter setting through the definition of business rules to special purpose components development. According to Sommerville, many companies and government organizations have changed their strategy from specify and develop to buy and configure. Thus, generic systems are purchased and configured to create a specific version applied to an organization context by adapting modules to structures, business lines and processes. In his work, Sommerville identified three 3 types of configurable systems single PC based applications with built in, modular generic systems such as ERP systems and COTS assemblies. He determined that the most complex and risky to configure are the COTS, and indicated that regardless of the facilities that this software category provides, a set of activities that are common in the configuration process should be managed to address avoid the mostly failures reported. These are System selection. Requirements analysis. Business process redesign. System configuration . System testing . Deployment and evolution. References Reflist Category Procurement practices ... more details
In geometry, a face configuration is notational description of a face transitive polyhedron . It represents a sequential count of the number of faces that exist at each vertex geometry vertex around a face geometry face . There is no single standard accepted representation, but one common notation prefixes the description with a V and separates the vertices by a period . or a comma , . Image Rhombic dodecahedron v3434.png thumb The rhombic dodecahedron alternates three faces per vertex and four faces per vertex BR V3.4.3.4 For example, V3.4.3.4 represents the rhombic dodecahedron which is face transitive every face is a rhombus , and alternating vertices of the rhombus contain 3 or 4 faces each. Another form of this notation, used in Tilings and Patterns , has brackets around the symbol, for instance 3.4.3.4 . Face transitive polyhedra are generally the Dual polyhedron polyhedral dual s of the vertex transitive polyhedra, which are described by a parallel vertex configuration notation. That notation omits the V prefix and represents sequentially the number of edges of the faces around a vertex. For example, 3.4.3.4 is the cuboctahedron with alternating triangle triangular and square geometry square faces around each vertex. Polyhedra have the same representation in face configuration notation with the addition of the V that their duals have in vertex configuration notation. The rhombic dodecahedron V3.4.3.4 and the cubocahedron 3.4.3.4 above are dual polyhedra. See also Platonic solid s five regular polyhedron regular polyhedra that are either self dual or whose dual is another Platonic solid. Catalan solid s thirteen polyhedra that are dual to the Archimedean solid s Bipyramid s an infinite set of duals of Prism geometry prism s Trapezohedron s an infinite set of duals of antiprism s List of uniform planar tilings References The Geometrical Foundation of Natural Structure book Branko Gr nbaum and G. C. Shephard Tilings and Patterns . New York W. H. Freeman & Co., 1987 ... more details
Electronic structure methods Configuration interaction CI is a post Hartree&ndash Fock linear variational method for solving the nonrelativistic Schr dinger equation within the Born&ndash Oppenheimer approximation for a Quantum chemistry quantum chemical multi electron system. Mathematically, configuration simply describes the linear combination of Slater determinant s used for the wave function. In terms of a specification of orbital occupation for instance, 1s sup 2 sup 2s sup 2 sup 2p sup 1 sup ... , interaction means the mixing interaction of different electronic configurations states . Due to the long CPU time and immense hardware required for CI calculations, the method is limited to relatively small systems. In contrast to the Hartree&ndash Fock method, in order to account for electron correlation , CI uses a variational wave function that is a linear combination of configuration state function s CSFs built from spin orbitals denoted by the superscript SO , math Psi sum I 0 c I Phi I SO c 0 Phi 0 SO c 1 Phi 1 SO ... math where is usually the electronic ground state of the system. If the expansion includes all possible Configuration state function CSF s of the appropriate symmetry, then this is a full configuration interaction procedure which exactly solves the electronic Schr dinger equation within the space spanned by the one particle basis set. The first term in the above ... configuration interaction . MRCI also gives better correlation of the ground state which is important ... and energies. See also Coupled cluster Electron correlation Multireference configuration interaction MRCI Multi configurational self consistent field MCSCF Post Hartree&ndash Fock Quadratic configuration ... Sherrill first2 Henry F. last2 Schaefer III contribution The Configuration Interaction Method Advances ... Hartree Fock methods de Configuration Interaction es Interacci n de configuraciones fr Interaction de configuration ko it Interazione di configurazione ja pl Metoda oddzia ywania konfiguracji ... more details
In dentistry, the configuration factor also known as c factor refers to the number of bonded to unbonded surfaces in a tooth preparation. For instance, in an Occlusion dentistry occlusal class I preparation there would be 5 bonded surfaces and only 1 unbonded surface. The net result would be a C factor of 5. As the C factor increases so too does the possibility of bond disruption when using a composite resin. This effect is caused by a reduction in unbonded surfaces in which the composite can flow to relieve polymerization stress. The technique of incremental layering has been suggested to compensate for preparations with high configuration factors. Citation last1 Roberson first1 Theodore last2 Haymann first2 Harold last3 Swift first3 Edward title Sturdevant s Art and science of Operative Dentistry publisher Mosby place St. Louis, Missouri year 2002 . Category Dentistry dentistry stub es Factor de configuraci n ... more details
In geometry, the Klein configuration , studied by harvs txt authorlink Felix Klein last Klein year 1870 , is a geometric configuration related to Kummer surface s that consists of 60 points and 60 planes, with each point lying on 15 planes and each plane passing through 15 points. References Citation authorlink R. W. H. T. Hudson last1 Hudson first1 R. W. H. T. title Kummer s quartic surface publisher Cambridge University Press series Cambridge Mathematical Library isbn 978 0 521 39790 2 id MathSciNet id 1097176 year 1990 Citation last1 Klein first1 Felix authorlink Felix Klein title Zur Theorie der Liniencomplexe des ersten und zweiten Grades url http dx.doi.org 10.1007 BF01444020 publisher Springer Berlin Heidelberg year 1870 journal Mathematische Annalen issn 0025 5831 volume 2 pages 198 226 Category Configurations Category Algebraic geometry ... more details
Image Mobius configuration.png thumb right 225px Example of M bius configuration the face planes of red tetrahedron are shown on the top of the image the blue one on the bottom. The vertex coordinates of the red tetrahedron are math 0,0,0 , 0,0,1 , 0,1,0 , 1,0,0 math . The vertex coordinates of the blue tetrahedron are math 0, gamma, gamma , math math gamma, 0, gamma , math math gamma, gamma, 0 , math math lambda, lambda, lambda math , where math gamma frac 1 sqrt 2 math and math lambda frac 1 3 math . In geometry , the M bius configuration is a certain Configuration geometry configuration in Euclidean ... from the other tetrahedron that lies on it . M bius s theorem The configuration is named after August ... on the plane of its corresponding face, forming a configuration of this type. This theorem is true ... for the configuration. Beginning with an arbitrary point p in Euclidean space, let A , B , C , and D ... , and D form an instance of M bius configuration. Related constructions harvtxt Hilbert Cohn Vossen ... configuration corresponds to the conjugacy class e. It could be denoted Ke. It is stated by Steinitz ... 8 4 math that is a geometrical theorem is the M bius configuration. However that is disputed harvtxt ... that are actually theorems the M bius configuration and one other. The latter which corresponds to the conjugacy ... . In abstract terms, the latter configuration has points 0,...,7 and planes 0125 i, i 0,...,7 , where these integers are modulo eight. This configuration, like M bius, can also be represented as two ... and because pairs of planes are degenerate quadratic surfaces , the M bius configuration is on more quadratic surfaces of three dimensional space than the latter configuration. The Levi graph of the M bius configuration has 16 vertices, one for each point or plane of the configuration, with an edge ... . A closely related configuration, the M bius Kantor configuration formed by two mutually inscribed ... Mobius Configuration Category Configurations ... more details
s. This vertex configuration defines the vertex uniform icosidodecahedron polyhedron. Vertex figures A vertex configuration can also be represented graphically as vertex figure showing the faces around ... represent the vertex configuration. See image category http commons.wikimedia.org wiki Category Polyhedra ... applies to polygon tiles as well as polyhedra. A planar vertex configuration can imply a uniform tiling just like a nonplanar vertex configuration can imply a uniform polyhedron. The notation ... form which are identical across mirror images. Both have a 3.3.3.3.4 vertex configuration ..., the nonconvex regular polyhedron small stellated dodecahedron has a vertex configuration of Schl fli symbol of SUP 5 SUP SUB 2 SUB ,5 which expands to an explicit vertex configuration as SUP 5 ... can be enumerated by looking at their vertex configuration and the Defect geometry angle defect ... vertex configuration potentially uniquely defines a semiregular polyhedron. However not all ... 3.3.3.3.3.3 Face configuration for duals The dual polyhedron can also be listed by this notation, but prefixed by a V . See face configuration . The faces of semiregular polyhedral duals are not regular ... tell a face configuration of V3.4.3.4 represents a rhombus face since every edge is a V3 V4 type, and V3.4.5.4 ... of Wenninger polyhedron models List of uniform polyhedra List of uniform planar tilings Face configuration ... more details
In statistical mechanics , configuration entropy is the portion of a system s entropy that is related to the position of its constituent particles rather than to their velocity or momentum . It is physically related to the number of ways of arranging all the particle s of the system while maintaining some overall set of specified system properties, such as energy . The configurational entropy is also known as microscopic entropy or conformational entropy in the study of macromolecules . In general, configurational entropy is the foundation of statistical thermodynamics. ref http www.entropysite.com calpoly talk.html ref It can be shown ref name Young cite book last Young first Hugh coauthors Roger Freedman year 2008 title University Physics edition 12th Ed. publisher Pearson Education ref that the variation of configuration entropy of thermodynamic systems e.g., ideal gas, and other systems with a vast number of internal degrees of freedom in thermodynamic process es is equivalent to the variation of the macroscopic entropy defined as dS Q T , where Q is the heat exchanged between the system and the surrounding media, and T is temperature. Therefore configuration entropy is the same as macroscopic entropy. Calculation The configurational entropy is related to the number of possible configurations by Boltzmann s entropy formula math S k B , ln W, math where k sub B sub is the Boltzmann constant and W is the number of possible configurations. In a more general formulation, if a system can be in states n with probabilities P sub n sub , the configurational entropy of the system is given by math S k B , sum n 1 W P n ln P n, math which in the perfect disorder limit all P sub n sub 1 W leads to Boltzmann s formula, while in the opposite limit one configuration with probability 1 , the entropy vanishes. This formulation is analogous to that of Entropy information theory Shannon s information entropy . The mathematical field of combinatorics , and in particular the mathematics ... more details
Image Electron orbitals.svg right thumb 350px Electron atomic and molecular orbitals Image Configuration ... and quantum chemistry , the electron configuration is the distribution of electron s of an atom ... GoldBookRef file C01248 title configuration electronic ref For example, the electron configuration ... to quantum mechanics quantum mechanics , an energy is associated with each electron configuration ... of a quantum of energy, in the form of a photon . Knowledge of the electron configuration ... 50px Image P2M1.png 50px Image P2M 1.png 50px Electron configuration was first conceived of under ... shell, so its configuration is written 1s sup 1 sup . Lithium has two electrons in the 1s subshell and one in the higher energy 2s subshell, so its configuration is written 1s sup 2 sup 2s sup ... shell. Thus, the electron configuration of neon is pulled out, and phosphorus is written as follows ... configuration of iron can be written as Ar 3d sup 6 sup 4s sup 2 sup keeping the 3d electrons with the 3s and 3p electrons which are implied by the configuration of argon or as Ar ... occupied orbital is not compulsory. ref The full form of the configuration notation is a mathematical ... is that of its orbital. The energy of a configuration is often approximated as the sum of the energy of each electron, neglecting the electron electron interactions. The configuration that corresponds to the lowest electronic energy is called the stationary state ground state . Any other configuration is an excited state . As an example, the ground state configuration of the sodium atom ... sup 2s sup 2 sup 2p sup 6 sup 3p configuration, abbreviated as the 3p level. Atoms can move from one configuration to another by absorbing or emitting energy. In a sodium vapor lamp for example, sodium ... 1s sup 2 sup 2s sup 2 sup 2p sup 5 sup 3s sup 2 sup configuration. The remainder of this article deals only with the ground state configuration, often referred to as the configuration of an atom ... more details
Infobox film name The Ninth Configuration image Ninth configuration ver1.jpg caption Theatrical release poster director William Peter Blatty writer William Peter Blatty starring Stacy Keach br Scott Wilson actor Scott Wilson br Jason Miller playwright Jason Miller br Ed Flanders producer William Peter Blatty music Barry De Vorzon cinematography Gerry Fisher distributor Warner Bros. released February 29, 1980 runtime 114 minutes country United States language English The Ninth Configuration , also known as Twinkle, Twinkle, Killer Kane is a 1980 American film directed by William Peter Blatty . The film is based on Blatty s novel, The Ninth Configuration 1978 which was itself a reworking of an earlier version of the novel, first published in 1966 as Twinkle, Twinkle, Killer Kane The initial 1966 publication of the novel featured an exclamation mark at the end of the title, while all subsequent ... in 1978 under the title The Ninth Configuration . Blatty has said that he prefers the first version ... of the Shadows Omnibus Press, 1999 , p.166, 168 ref Blatty then developed The Ninth Configuration ... film studio prepared to fund The Ninth Configuration , Blatty decided to raise the film s 4 million ... Jason Miller , who had played Father Karras in The Exorcist , for The Ninth Configuration . Ed Flanders ... 70s. William Peter Blatty had cast him as Killer Kane in The Ninth Configuration also known ..., The Exorcist III 1990 . Release and reception The Ninth Configuration was not a commercial success ... on the film s DVD release in 2002 . Kermode has described The Ninth Configuration as a breathtaking ... versions Several versions of The Ninth Configuration were released in cinemas and on video tape and DVD .... References reflist External links IMDb title id 0081237 title The Ninth Configuration amg movie 35465 The Ninth Configuration The Exorcist DEFAULTSORT Ninth Configuration Category 1980 films Category ... fr La Neuvi me Configuration it La nona configurazione fi Yhdeks s aisti ... more details
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