Image Water cycle.png thumb 320px right A commonly cited example is the water cycle . In geography and Earth science , a biogeochemicalcycle or substance turnover or cycling of substances is a pathway ... and physical world are known as biogeochemicalcycle. In effect, the element is recycled, although ... idls carboncycle.htm Biogeochemical Cycles Carbon Cycle. ref When chemicals are held for only short ... name carbon Important cycles The most well known and important biogeochemical cycles, for example, include the carbon cycle , the nitrogen cycle , the oxygen cycle , the phosphorus cycle , the sulfur cycle , and the water cycle . There are many biogeochemical cycles that are currently being studied ... Ecology Ecosystem Natural environment Nature Recycling ecological Sulfur Cycle References Reflist Biogeochemicalcycle state expamded modelling ecosystems DEFAULTSORT BiogeochemicalCycle Category Biogeochemical ... , atmosphere , and hydrosphere compartments of Earth . A cycle is a series of change which comes back ... matter cycles.htm Matter cycles at Lenntech. ref The term biogeochemical tells us that biological ... through the water cycle, as shown in the diagram. The water undergoes evaporation , condensation ... of the biosphere to another through the biogeochemical cycles. ref Prentice Hall Biology. ref ref ... affine Many fruited Thyme moss. Ecological systems ecosystems have many biogeochemical cycles operating as a part of the system, for example the water cycle, the carbon cycle, the nitrogen cycle, etc. All chemical elements occurring in organisms are part of biogeochemical cycles. In addition to being a part of living organisms, these chemical elements also cycle through abiotic factors of ecosystems ... subcategory.php 198.html The Environmental Literacy Council Biogeochemical Cycles ref The living ... The Environmental Literacy Council Biogeochemical Cycles ref The flow of energy in an ecosystem is an open ... tube worm . In the sulfur cycle , sulfur can be forever recycled as a source of energy ... more details
wiktionarypar cycle cyclic cyclical tocright Cycle , and in some cases cyclic , may refer to Bicycle or Motorcycle See also List of cycles Chemistry Cyclic compound Economics Business cycle , economy wide fluctuations in production or economic activity over several months or years Mathematics Algebraic cycle and Hodge cycle , homology classes in algebraic geometry Cycle algebraic topology , a simplicial chain with zero boundary Cycle graph theory , a nontrivial path in a graph from a node to itself Cycle mathematics , a basic permutation all permutations are products of cycles Cyclic mathematics shows other terms in mathematics beginning with cyclic or cycle Turn geometry or cycle, a unit of plane angle equal to 360 degrees Music Cycle music , a section of a piece that is repeated or repeatable Cyclic form , a technique of construction involving multiple sections or movements Cycles Cartel album Cycles Cartel album Cycles David Darling album Cycles David Darling album Cycles Doobie Brothers album Cycles Doobie Brothers album Cycles Frank Sinatra album Cycles Frank Sinatra album Interval cycle , a collection of pitch classes generated from a sequence the same interval class Miscellaneous Battery cycle , charging and discharging a rechargeable battery Cyclic flower , in botany, one way in which flower parts may be arranged Cycle baseball , a single, double, triple, and home run in any order by the same player in one game Cycle film Cycle film , a 2008 Malayalam film Cycles render engine, see Blender software Helicopter flight controls Cyclic Cyclic control , a primary flight control for helicopters Instruction cycle , the time period during which a computer processes a machine language instruction Social cycle various cycles in social sciences See also lookfrom intitle lookfrom ... cs Cyklus de Zyklus el es Ciclo desambiguaci n eo Ciklo fr Cycle io Ciklo hu Ciklus egy rtelm s t lap ja ko no Kretsl p pl Cykl ru simple Cycle sk Cyklus sv ... more details
For the baseball term Hitting for the cycle Unreferenced date September 2011 Expand Persian fa yes date December 2009 Infobox film name image alt caption director Dariush Mehrjui producer writer Dariush Mehrjui story Gholam Hossein Saedi based on The play Aashghaal duni by Gholam Hossein Saedi starring Saeed Kangarani br Ezzatollah Entezami br Ali Nassirian br Esmail Mohammadi br Fourouzan br Bahman Fersi music Hormoz Farhat cinematography Houshang Baharlou editing Talat Mirfendereski studio distributor released 1975 1978 in Iran runtime 101 minutes country Iran language Persian budget gross Over 16 million Iranian rial rials The Cycle , Dayereh ye Mina is a 1975 Iran Iranian film directed by Dariush Mehrjui . It was Iran s List of submissions to the 50th Academy Awards for Best Foreign Language Film submission for Best Foreign Language Film at the 50th Academy Awards , the first year that Iran participated in the award. The film was banned for three years before being given permission to release, and was finally released in Iran on April 12, 1978. The movie s plot centered on the illegal trade in blood donations against the backdrop poverty and life in shanty towns . http tehranavenue.com article.php?id 807 A young man, Ali Saeed Kangarani , takes his sick father Esmail Mohammadi to a hospital in Tehran. When his father is unable to be admitted, they wait outside the hospital and meet Sameri Ezzatollah Entezami . Dr. Sameri offers them enough money for Ali s father s treatment if they assist him with some work. They meet him the next morning at a crossroads and get in a truck with some other people, unaware of what they will be doing or where they will be going. They arrive at a laboratory, where Ali s father is asked to give blood. He refuses, but Ali agrees to have his blood taken, and for that he is given 20 Iranian toman tomans . Sameri deals .... External links imdb title 0077403 Dariush Mehrjui DEFAULTSORT Cycle Category 1975 films Category ... more details
In ecology or geoscience , the iron cycle is the biogeochemicalcycle of iron through landform s, the Earth s atmosphere atmosphere , and ocean s. The iron cycle affects dust deposition and Particulate aerosol iron bioavailability. . References Jickells, T. D., et al. 2005, April 1 . Global iron connections between desert dust, ocean biogeochemistry, and climate. In Science, 308 , 67 &ndash 71. Category Geochemistry Category Geological processes Geology stub th ... more details
The mineral cycle is a biogeochemical and ecology ecological process that regulates the flow, distribution, and migration of mineral nutrients across the Earth s surface. ref name Jordan72 cite journal last1 Jordan first1 C. F. last2 Kline first2 J. R. title Mineral cycling Some basic concepts and their application in a tropical rain forest. journal Annual Review of Ecology and Systematics volume 3 year 1972 pages 33 50 url http www.jstor.org stable 209692 ref ref name Witkamp71 cite journal last1 Witkamp first1 M. title Soils as components of ecosystems. journal Annual Review of Ecology and Systematics volume 2 pages 85 110 year 1971 url ttp www.jstor.org stable 2096923 ref reflist Natural sciences footer Physical Earth Philosophy of science ecology stub Hydrology stub Category Mineralogy Category Minerals Cycle Category Interdisciplinary fields Category Environmental chemistry Category Chemical oceanography Category Geochemistry Category Systems ecology ... more details
Cleanup date October 2008 The phosphorus cycle is the biogeochemicalcycle that describes the movement of phosphorus through the lithosphere , hydrosphere , and biosphere . Unlike many other biogeochemical ... of available P in the biogeochemicalcycle. ref name Turner Turner B.L et al. 2003 Organic phosphorus ... is an essential step in the biogeochemical phosphorus cycle, including the phosphorus nutrition of plants ... article.php 480.html Environmental Literacy Council Phosphorus CycleBiogeochemicalcycle Category Biogeochemicalcycle Category Soil biology Category Soil chemistry Category Biogeography da Fosforkredsl b ... driven however, the major transfers in the global cycle of P are not driven by microbial reactions ... Image Phoscycle EPA.jpg thumb 400px The aquatic phosphorus cycle Ecological function Phosphorus is an essential ... 608. ref Process of the cycle Phosphates move quickly through plants and animals however, the processes that move them through the soil or ocean are very slow, making the phosphorus cycle overall one of the slowest biogeochemical cycles. Unlike other cycles of matter compounds, phosphorus cannot .... Phosphorus is released back to the soil when plants or animal matter decomposes and the cycle ... contained different forms. ref name Schlesinger ref Filippelli G.M 2002 The Global Phosphorus Cycle ... forms. The later stage of weathering and soil development. Available phosphorus is found in a biogeochemicalcycle in the upper soil profile, while phosphorus found at lower depths is primarily involved ... of phosphorus released from dead organic matter in the biochemical cycle. Phosphorus is limited in supply ... them through the soil or ocean are very slow, making the phosphorus cycle overall one of the slowest biogeochemical cycles. ref name Schlesinger ref Oelkers E.H 2008 Phosphate mineral reactivity ... in long term manured soils. ref Human interference in the phosphorus cycle occurs by overuse or careless ... . ref Filippelli G.M 2008 The Global Phosphorus Cycle Past, Present, and Future. Elements, 4 89 95 ... more details
Image Oxygen Cycle.jpg thumb 350px right The oxygen cycle. The Oxygen cycle is the biogeochemicalcycle that describes the movement of oxygen within its three main reservoirs the Earth s atmosphere atmosphere air , the total content of biological matter within the biosphere the global sum of all ecosystems , and the lithosphere Earth s crust . Failures in the oxygen cycle within the hydrosphere the combined mass of water found on, under, and over the surface of a planet can result in the development of hypoxic zone s. The main driving factor of the oxygen cycle is photosynthesis , which is responsible for the modern Earth s atmosphere and life. Reservoirs By far the largest reservoir of Earth s oxygen is within the silicate and oxide mineral s of the Crust geology crust and Mantle geology mantle 99.5 . Only a small portion has been released as free oxygen to the biosphere 0.01 and atmosphere 0.36 . The main source of atmospheric oxygen is photosynthesis, which produces sugars and oxygen from carbon dioxide and water 6CO sub 2 sub 6H sub 2 sub O energy C sub 6 sub H sub 12 sub O sub 6 ... of Climate, Lectures on the global oxygen cycle, http paos.colorado.edu fasullo pjw class oxygencycle.html Morris, R.M., OXYSPHERE A Beginners Guide to the Biogeochemical Cycling of Atmospheric Oxygen, http seis.natsci.csulb.edu rmorris oxy Oxy.htm Biogeochemicalcycle Category Ecology Category Chemical ... offer estimates of oxygen cycle reservoir capacities and fluxes. These numbers are based primarily on estimates from Walker, J.C.G. ref Walker, J. C. G. 1980 The oxygen cycle in the natural environment and the biogeochemical cycles, Springer Verlag, Berlin, Federal Republic of Germany DEU ref br BR Table 1 Major reservoirs involved in the oxygen cycle border 1 cell padding 10 align center Reservoir ... 2O O O sub 2 sub O sub 3 sub References references Cloud, P. and Gibor, A. 1970, The oxygen cycle ... fr Cycle de l oxyg ne ko it Ciclo dell ossigeno pl Obieg tlenu w przyrodzie pt Ciclo do oxig nio ... more details
8, 2011 ref Effects on biogeochemical cycling While the water cycle is itself a biogeochemical ... Biogeochemicalcycle DEFAULTSORT Water Cycle Category Hydrology Category Water Category Forms ...Image Water cycle.png thumb 320px The water cycle. The water cycle , also known as the hydrologic cycle or H sub 2 sub O cycle , describes the continuous movement of water on, above and below the surface ... in the water cycle. Although the balance of water on Earth remains fairly constant over time, individual ..., the water goes through different phases liquid, solid, and gas. The water cycle involves the exchange ... of condensation, water releases energy to its surroundings, warming the environment. The water cycle ... plays an important role, the water cycle brings added significance to the presence of water on our planet. By transferring water from one reservoir to another, the water cycle purifies water, replenishes ... . In addition, as the water cycle also involves heat exchange, it exerts an influence ... the sea to the land, increasing the amount of fresh water on land. image2 The Water Cycle Watering the Land.ogv ... in the form of rain or snow. image3 The Water Cycle Following the Water.ogv width3 350 alt3 caption3 ... of the land at any particular place. Description The sun, which drives the water cycle, heats water ... springs. Over time, the water returns to the ocean, where our water cycle started. Processes File .... ref name The Water Cycle Dr. Art s Guide to Planet Earth. http www.planetguide.net book chapter 2 water cycle.html The Water Cycle. Retrieved on 2006 10 24. ref Interception water Canopy interception ... Center. http www.nwrfc.noaa.gov info water cycle hydrology.cgi Hydrologic Cycle. Retrieved on 2006 ... the oceans. ref name The Water Cycle Sublimation chemistry Sublimation The state change directly from ... time of a reservoir within the hydrologic cycle is the average time a water molecule will spend in that reservoir ... time The water cycle describes the processes that drive the movement of water throughout the hydrosphere ... more details
. The carbon cycle is the biogeochemicalcycle by which carbon is exchanged among the biosphere ... with a carbon cycle applet for modeling your own projection. Biogeochemicalcycle Global warming ... models Category Biogeography Category Biogeochemicalcycle af Koolstofkringloop ar ...For the thermonuclear reaction involving carbon that powers some stars CNO cycle Image Carbon cycle cute diagram.svg thumb 460px Diagram of the carbon cycle. The black numbers indicate how much carbon ... the biosphere and all of its organisms. Citation needed date April 2010 The carbon cycle was initially ... biosphere of the carbon cycle. An examination of the carbon budget of a pool or reservoir can provide ... carbon and 73 of the planet s soil carbon. ref Sedjo, Roger.1993. The Carbon Cycle and Global Forest ... carbonate silicate cycle . Carbonic acid reacts with weathered rock to produce bicarbonate ions. The bicarbonate ... autotrophs for the carbon cycle are tree s in forests on land and phytoplankton in the Earth ... in such traps, so most biogeochemical analyses have erroneously ignored them. Carbon storage in the biosphere ... net primary productivity follows a wiktionary diurnal diurnal and seasonal cycle, carbon can be stored ... reservoir of carbon in the carbon cycle. The dissolved calcium in the oceans comes from the chemical .... S.Draggan and C.Cleveland ref See also Biochar Breathing C4MIP Calvin cycle Carbon cycle re balancing ... irrigation Global Carbon Project Integrated Carbon Observation System Low carbon diet Nitrogen cycle Ocean acidification Peat bog Permafrost carbon cycle Primary production Snowball Earth and the Slow carbon cycle References Reflist Further reading http earthobservatory.nasa.gov Features CarbonCycle ?src eoa features The Carbon Cycle , updated primer by NASA Earth Observatory , 2011 cite journal ... Bolin first Bert coauthors Degens, E. T. Kempe, S. Ketner, P. authorlink title The global carbon cycle ... 2008 07 08 cite book last Houghton first R. A. chapter The contemporary carbon cycle editor William ... more details
In mathematics , the term cycle decomposition can mean In graph theory , a Cycle decomposition graph theory cycle decomposition is a partitioning of the vertices of a graph into subsets, such that the vertices in each subset lie on a Cycle graph theory cycle . In group theory , a Cycle decomposition group theory cycle decomposition is a useful convention for expressing a permutation in terms of its constituent cycles. mathdab ... more details
55963 228 3 ref There is much overlap between the terms for biogeochemicalcycle and nutrient cycle ... div A nutrient cycle or ecological recycling is the movement and exchange of organic matter organic ... of biogeochemical cycles . Particle ecology Particulate matter is recycled by biodiversity inhabiting ..., biogeochemical recycling, natural recycling, or just recycling in reference to the work of nature. Whereas the biogeochemical cycles global biogeochemical cycles describe the natural movement and exchange ... and compartmentalization with nutrient cycles feeding into global biogeochemical cycles. Solar ... the movement of mineral nutrients is cyclic. Mineral cycles include carbon cycle , sulfur cycle , nitrogen cycle , water cycle , phosphorus cycle , oxygen cycle , among others that continually recycle ... biogeochemical cycles are the sum product of localized ecological recycling regulated by the action ... omkullfallet liten tall.jpg thumb left Fallen logs are critical components of the nutrient cycle in terrestrial ... ref The nutrient cycle is nature s recycling system. All forms of recycling have feedback ... nutrients , which includes water cycle water . Recycling in natural systems is one of the many ... url http books.google.ca books?hl en&lr &id 4MS vfT89QMC&oi fnd&pg PA330&dq nutrient cycle or biogeochemical&ots ...&f false ref However, the terms often appear independently. Nutrient cycle is often used in direct reference to the idea of an intra system cycle, where an ecosystem functions as a unit. From ... BormannLikens1967.pdf ref Nutrient cycling occurs in ecosystems that participate in the larger biogeochemical ... Energy and biogeochemical cycles title Ecological physical chemistry publisher Elsevier place Amsterdam ... files bookchapter BC0104 04 BC0104 04 1.PDF ref In terms of a food web, a cycle or loop is defined ... of a hydrological cycle water is considered a nutrient was validated and quantified by Halley in 1687 ... of biogeochemistry, where they talked about the cycle of organic life in great detail. ref name ... more details
Lein eds. , Evolution of the Global Biogeochemical Sulphur Cycle, Wiley, New York ref The result ... Lenntech Biogeochemicalcycle Category Metabolism Category Soil biology Category Soil chemistry ...The sulfur cycle is the collection of processes by which sulfur moves to and from minerals including the waterways and living systems. Such biogeochemicalcycle s are important in geology because they affect many minerals. Biogeochemical cycles are also important for life because sulfur is an essential element , being a constituent of many protein s and cofactor s. ref name Brock File Sulfur cycle English.jpg thumb 450px The Sulfur cycle in general Steps of the sulfur cycle are Mineralization of Organosulfur ... cycle. These are often termed as follows Assimilative sulfate reduction see also sulfur assimilation ... pool of sulfur on earth. Owing to the sulfur cycle, the amount of mobile sulfur has been continuously ... cycle over the last 140 million years Harvard University, 2005. ref 1. input from rivers 2 ... half of the sulfur cycle. ref Bamford, V.A., Bruno, S., Rasmussen, T., Appi Ayme, C., Cheesman ... cycle enzyme European Molecular Biology Organization, vol. 21, No. 21, p. 5599 5610 ... sup 34 sup S are on the order of 21 . Throughout geologic history the sulfur cycle and the isotopic ... of sulfide minerals exposed on land. ref name Schlesinger Evolution of the sulfur cycle The isotopic ... cycle. The total inventory of sulfur compounds on the surface of the Earth nearly 10 sup 22 sup g ... Canfield, D.E. and Raiswell, R., 1999, The evolution of the sulfur cycle American Journal of Science ... in the sulfur cycle are easier to observe and can be even better constrained with oxygen isotopes. Oxygen is continually incorporated into the sulfur cycle through sulfate oxidation and then released ... cycle. Biological sulfate reduction preferentially selects lighter oxygen isotopes for the same ... time. Human Impact Human activities have had a major effect on the global sulfur cycle. The burning ... more details
In graph theory and combinatorial optimization , cycle cover may have the following meanings Vertex cycle cover Vertex disjoint cycle cover Edge cycle cover Other possible meanings include A cover for a bicycle Vehicle insurance for a bicycle disambig ... more details
to the aeration. References reflist 30em Biogeochemicalcycle Category Nitrogen Cycle Category Biogeochemical .... The importance of bacteria in the cycle is immediately recognized as being a key element in the cycle ... cycle is the process by which nitrogen is converted between its various chemical forms. This transformation ... in the nitrogen cycle include nitrogen fixation fixation , mineralization biology mineralization ... in many types of ecosystems. The nitrogen cycle is of particular interest to ecologists because nitrogen ..., and release of nitrogen in wastewater have dramatically Human impact on the nitrogen cycle altered the global nitrogen cycle . please see the linked article for references to support this claim A 2011 ... how much food can be grown on a piece of land. The processes of the nitrogen cycle Nitrogen is present ... of the nitrogen cycle transform nitrogen from one form to another. Many of those processes ... cycle. Nitrogen fixation Main Nitrogen fixation Atmospheric nitrogen must be processed, or fixed ... cycle, which distributes the supply of this essential nutrient. There are four ways to convert ... year 1997 title Human Alteration of the Global Nitrogen Cycle Causes and Consequences journal Issues ... sub , completing the nitrogen cycle. This process is performed by bacterial species such as Pseudomonas ... a major proportion of elemental nitrogen conversion in the oceans. Marine nitrogen cycle File Marine Nitrogen Cycle.jpg thumb A schematic representing the Marine Nitrogen Cycle The nitrogen cycle is an important process in the ocean as well. While the overall cycle is similar, there are different players ... 05536 4 pages 60 62 ref Without supplies of fixed nitrogen entering the marine cycle the fixed nitrogen ..., Elliot first Susan, Michael title Learning Unit Nitrogen Cycle Marine Environment url http www.chemgapedia.de ... up by phytoplankton to continue the cycle. N sub 2 sub can be returned to the atmosphere through denitrification ... cycle Main Human impacts on the nitrogen cycle As a result of extensive cultivation of legumes ... more details
Spin cycle refers to the spinning Washing machine Wash cycles wash cycle of a washing machine. Spin Cycle may also refer to Spin Cycle , an episode of Canadian television sitcom Corner Gas TNA Spin Cycle , a webcast forming part of TNA Today In music Spin Cycle album Spin Cycle album 1996 , by rock band Diffuser band Diffuser Spin Cycle, a dance music channel available through Clear Channel Radio s iHeartRadio Spin Cycle 2010 , a song from electronic musician Arthur Loves Plastic s EP Touch EP Touch Spin Cycle 2009 , a song from The Laundronauts LP The Laundronauts Come Clean In literature Spin Cycle Inside the Clinton Propaganda Machine 1998 , a book by Howard Kurtz Spin Cycle 2001 , a collection of literary criticism by Chris Stroffolino disambig ... more details
The mercury cycle is a biogeochemicalcycle involving mercury element mercury . Mercury is notable for being the only heavy metal which is liquid at room temperature. It is a volatility chemistry volatile metal and evaporation evaporates easily, going into the atmosphere. Citation needed date February 2011 Processes Most natural mercury occurs as cinnabar , ref cite journal last1 Rytuba first1 James J. date August 2, 2002 title Mercury from mineral deposits and potential environmental impact journal Environmental Earth Sciences Environmental Geology volume 43 number 3 pages 326 338 publisher Springer Science Business Media doi 10.1007 s00254 002 0629 5 url http www.springerlink.com content f4n64a07130y1mvq accessdate March 20, 2012 ref mercury element Hg sulfur S . Here mercury Hg sup 2 sup is bound very tightly to sulfur, but weathering slowly releases the mercury to the environment. There are also trace amounts of mercury in coal . Mining mercury or burning coal results in releasing mercury. Volcano es and forest fire s are also sources of mercury. Citation needed date February 2012 Chlorine factories, among other sources, release mercury into the atmosphere. ref name oceana This mercury is deposited back onto land and water. Inorganic mercury can be converted by bacteria into the organometallic cation known as methylmercury , Methyl group CH sub 3 sub Mercury element Hg sup sup , citation needed date February 2012 which bioaccumulate s in fish such as tuna and swordfish . ref name oceana Over long periods of time, some mercury recombines with sulfur and is buried in sediment s. Then, the cycle repeats itself again. ref name oceana cite web url http oceana.org en our work stop ocean pollution mercury overview title Mercury Overview year 2012 work Oceana publisher Oceana ... Biogeochemicalcycle Category Biogeochemicalcycle Category Mercury element Category Use mdy dates from March 2012 fr Cycle du mercure ... more details
Wiktionary Life cycle or lifecycle may refer to Biological life cycle Enterprise life cycle Life cycle assessment New product development Product lifecycle disambiguation , various meanings Project life cycle Records Life Cycle , from creation to archiving or destruction Software release life cycle Systems Development Life Cycle Adobe LiveCycle SOA Lifecycle Object lifetime of an object in object oriented programming Lifecycles A Story of AIDS in Malawi , a 2003 Canadian film Life Cycles album Life Cycles album by The Word Alive Disambig de Lebenszyklus es Ciclo de vida eo Vivciklo fr Cycle de vie gl Ciclo de vida pt Ciclo de vida desambigua o zh ... more details
thermodynamics cTopic Processes and Cycles The Kleemenko cycle or one flow cascade cycle is a single stream mixed refrigerant technique used to cool or Liquefaction of gases liquify gases . The term Kleemenko Cycle is used in refrigeration if multi component refrigerants MCR are used in a cycle ref http www.cryogenicsociety.org resources cryo central history of cryogenics History of cryogenics ref . The Russians Russian scientist A.P. Kleemenko described the one flow cascade cycle in the Proceedings of XIII International Conference of Refrigeration in Copenhagen, Denmark, in 1959. It was published in progress in refrigeration science and technology , Volume I Pergamon Press in 1960 pps. 34 39 ref http www.freepatentsonline.com 3592015.html rectification column with two component closed heat exchange cycle ref . See also Hampson Linde cycle Timeline of low temperature technology References reflist External links http cat.inist.fr ?aModele afficheN&cpsidt 1809635 Kleemenko cycle coolers Low cost refrigeration at cryogenic temperatures Thermodynamic cycles state uncollapsed Category Thermodynamic cycles physics stub ... more details
Merge to V lsungasaga date January 2010 Unreferenced date December 2009 The V lsung Cycle is a series of legend s in Norse mythology that were first recorded in Middle Ages medieval Iceland . The original Icelandic tales were greatly expanded with native Scandinavian folklore , including that of Helgi Hundingsbane , which, in turn, originally appears to have been a separate tradition the Ylfing s. Mythological material in this Cycle includes the Volsunga Saga , the tale of the tr Otter s Ransom , and others. The V lsung Cycle is partially based on the same subject matter as the Middle High German epic poem Niebelungenlied . See also Volsung Tyrfing Cycle V lsung Norse mythology DEFAULTSORT Volsung Cycle Category Norse mythology Category V lsung cycle Europe myth stub bg el sv V lsungacykeln ... more details
about a concept in graph theory space allocated to bicycles segregated cycle facilities In graph theory , an area of mathematics, a cycle space is a vector space defined from an undirected graph elements of the cycle space represent formal combinations of cycle graph theory cycles in the graph. Cycle spaces allow one to use the tools of linear algebra to study graphs. A cycle basis is a set of cycles that generates the cycle space. The binary cycle space Let G be a finite simple undirected graph ... linear subspace subspace of the edge space is the binary cycle space . It is by definition the subspace generated by the edge sets of all the simple cycle s of the graph. The addition of two cycles shown ... cycle but an edge disjoint union of two simple cycles. center Image cycle space addition.png Example for adding two cycles center There are a number of basic results concerning the cycle space. The symmetric difference of two simple cycles is either a simple cycle or a union of edge disjoint simple cycles. Using this observation, one can show that an edge set is in the cycle space if and only if it is a disjoint union of simple cycles. Phrased another way the set F of edges is in the cycle space ... all cycles to generate the cycle space if G is connected and any spanning tree mathematics spanning tree T of G is given, then the fundamental cycle s of T form a basis linear algebra basis of the cycle space, known as a cycle basis . The Hamel dimension dimension of the cycle space of a connected ... of interior faces of an embedding of the graph also provides a cycle basis. An important application of the cycle space are Dual graph Whitney s planarity criterion and Mac Lane s planarity criterion , which give an algebraic characterization of the planar graph s. The integral cycle space The foregoing ... to choose an arbitrary graph graph theory orientation of the graph in order to define the cycle space, but the definition does not depend on that choice. An integral cycle is a function such that the sum ... more details
Unreferenced stub auto yes date December 2009 Cycle and Carriage is a company based in Singapore and Malaysia . The company was integrated into the Jardine Matheson Group by 2002 and is now named Jardine Cycle and Carriage Limited . Cycle and Carriage was founded by the Chua brothers in 1899 in Kuala Lumpur as Federal Stores . The company distributed many products. Cycle and Carriage was listed on the Bursa Malaysia Stock Exchange of Malaysia and Singapore in 1977 and was part of the Straits Times Index , before being delisted upon merger. Cycle and Carriage is one of the premier automotive groups in Singapore and is engaged in the retail, distribution and provision of after sales service of Mercedes Benz, Mitsubishi, Kia & Citroen motor vehicles. Category Defunct companies of Singapore Singapore company stub ... more details
In mathematics, a heteroclinic cycle is an invariant set in the phase space of a dynamical system . It is a topological circle of equilibrium point s and connecting heteroclinic orbit s. If a heteroclinic cycle is asymptotically stable, approaching trajectories spend longer and longer periods of time in a neighbourhood of successive equilibria. Robust heteroclinic cycles A robust heteroclinic cycle is one which persists under small changes in the underlying dynamical system. Robust cycles often arise in the presence of symmetry or other constraints which force the existence of invariant hyperplanes. An prototypical example of a robust heteroclinic cycle is the Guckenheimer&ndash Holmes cycle. See also Heteroclinic bifurcation Heteroclinic network References John Guckenheimer Guckenheimer J and Philip Holmes Holmes, P , 1988, Structurally Stable Heteroclinic Cycles, Math. Proc. Cam. Phil. Soc. 103 189 192. Category Dynamical systems ... more details
Vicious Cycle may refer to Vicious Cycle album Vicious Cycle album , a 2003 album by Lynyrd Skynyrd Vicious Cycle Software , a video game development company Virtuous circle and vicious circle , or vicious cycle, a complex of events that reinforces itself through a feedback loop disambiguation Short pages monitor This long comment was added to the page to prevent it from being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Long comment. Please do not remove the monitor template without removing the comment as well. ... more details
Encyclopedia
top
