Orphan date September 2010 Uterine inversion is a potentially fatal childbirth complication with a maternal survival rate of about 85 . It occurs when the placenta fails to detach from the uterus as it exits, pulls on the inside surface, and turns the organ inside out. Types ONE Complete. Visible outside the cervix . TWO Incomplete. Visible only at the cervix. ref http www.betterhealthchannel.vic.gov.au bhcv2 bhcarticles.nsf pages Uterine inversion?OpenDocument Uterine inversion Better Health Channel State of Victoria, Australia accessed 2009 04 03 ref References references Category Complications of labour and delivery Med stub pl Wynicowanie macicy ... more details
Notability 1 Music date October 2010 Unreferenced date October 2010 Retrograde Inversion are a progressive rock funk band from Haslemere , England . The band formed in 2003 as part of the Live and Direct Youth Scheme. The band s name is derived from the musical term Retrograde Inversion, meaning backwards and upside down. They performed at Alton, Hampshire Alton Live and have played a free concert at Alton College . More notably however, they won the Alton Battle of the Bands. In addition they have played on Delta Fm and BBC Radio Leicester . They have been described by the local press as having an exciting mix of bass driven funk and 70 s style melodic rock . As of now the band has been split. Members Louise Coady Vocals Cassie Philpot Guitar Rob Hack Guitar Sophie Lowe Bass Ben Turk Drums Discography The Funk E.P 2004 Slow Song 2005 Coming Down & Wake Up 2005 External links http www.retrogradeinversion.co.uk Retrograde Inversion Official Site http www.myspace.com retrogradeinversion Retrograde Inversion at Myspace http www.purevolume.com retrogradeinversion Retrograde Inversion at Pure Volume http www.liveanddirect.org.uk Live and Direct Category English musical groups ... more details
Image Inversioncartoon.gif thumb right 250px A clay model showing why heterozygous inversion loops are visible in polytene chromosome preparations Image a arm inversion.jpg thumb right 250px An inversion loop in the A arm of a chromosome from an Axarus species midge An inversion is a chromosome rearrangement in which a segment of a chromosome is reversed end to end. An inversion occurs when a single chromosome undergoes breakage and rearrangement within itself. Inversions are of two types paracentric and pericentric . Paracentric inversions do not include the centromere and both breaks occur in one arm of the chromosome. Pericentric inversions include the centromere and there is a break point in each arm. Cytogenetic techniques may be able to detect inversions, or inversions may be inferred from genetic analysis . Nevertheless, in most species small inversions go undetected. In insects with polytene chromosome s, for example Drosophila , preparations of larval salivary gland chromosomes allow inversions to be seen when they are heterozygous . This useful characteristic of polytene chromosome s was first advertised by Theophilus Shickel Painter in 1933. ref cite journal author Painter TS year 1933 title A new method for the study of chromosome rearrangements and the plotting of chromosome ... for an inversion, there is an increased production of abnormal chromatids this occurs when crossing over occurs within the span of the inversion . This leads to lowered fertility due to production of unbalanced gametes. The most common inversion seen in humans is on chromosome 9 , at inv 9 p12q13 . This inversion is generally considered to have no deleterious or harmful effects, but there is some evidence it leads to an increased risk for miscarriage for about 30 of affected couples. An inversion ... Inversi gen tica de Inversion Genetik es Inversi n cromos mica ko it Inversione cromosoma ka ... simple Chromosome inversion tr nversiyon uk ... more details
File Inversion house artwork.jpg thumb InversionInversion was a 2005 artwork by sculptor s Dan Havel and Dean Ruck of Houston Alternative Art . Havel and Ruck altered two buildings owned by the Art League of Houston on the corner of Montrose Boulevard and Willard Street. The exterior skins of the houses were peeled off and used to create a large vortex that funneled into the small central hallway connecting the two buildings and eventually exited through a small hole into an adjacent courtyard. Inversion has become one of Houston s most well known, albeit vanished, sculptures. The structure was later demolished to make way for a new Art League building. ref name backformore cite news last Gray first Lisa title Inversion creators are back for more url http www.chron.com entertainment article Gray Inversion creators are back for more 1744394.php accessdate October 12, 2011 newspaper Houston Chronicle date February 8, 2009 ref ref cite web title From Street Art The Inversion House url http www.juxtapoz.com Current from street art the inversion house publisher Juxtapoz magazine accessdate October 12, 2011 ref ref cite web title About Inversion url http inversioncoffee.com about.html publisher Inversion Coffee House accessdate October 12, 2011 ref Art League Houston owned the two houses and had used them for art classes and exhibitions for over 30 years. The organisation commissioned Havel and Ruck to transform them into an artwork in demolition. The sculpture was opened on May 21, 2005, and was visible from Montrose Boulevard until its demolition the next month. ref name hbj cite news title Houston houses move into new realm and become works of art url http www.bizjournals.com houston stories 2005 05 09 focus2.html?page all accessdate October 23, 2011 publisher Houston Business Journal date May 8, 2005 ref The design used timber from the two houses to make a funnel like opening .... This was compared to the earlier work Inversion . ref cite news title The men who make houses explode ... more details
Forensic meteorology is the process of reconstructing weather events for a certain location. This is done by acquiring local weather reports, radar and satellite images, and eyewitness accounts. Forensic meteorology is most often used in court cases for either insurance companies or a murder investigation. See also Forensic astronomy Forensic science Category Meteorology Category Forensic disciplines forensics stub climate stub ca Meteorologia forense es Meteorolog a forense ... more details
Seismic inversion , in Geophysics primarily Oil and Gas exploration development , is the process of transforming ... of a petroleum reservoir reservoir . Seismic inversion may be pre or post stack, deterministic, random ... without inversion, but this does not provide the most detailed view of the subsurface and can be misleading ... now use seismic inversion to increase the resolution and reliability of the data and to improve estimation of rock properties including porosity and net pay. ref Pendrel, J., Seismic Inversion A Critical ... There are many different techniques used in seismic inversion. ref name Sen Sen, M. K., Seismic Inversion ... yields four technical approaches to the inversion problem, and the selection of a specific ... the order presented reflects the advancement in inversion techniques over the past 20 years, each grouping ... All modern seismic inversion methods require seismic data and a wavelet estimated from the data ... to the success of any seismic inversion. The inferred shape of the seismic wavelet may strongly influence the seismic inversion results and, thus, subsequent assessments of the reservoir quality ..., it is used to estimate seismic reflection coefficients in the seismic inversion. When the estimated ... is identified, seismic inversion computes a synthetic log for every seismic trace. To ensure quality, the inversion result is convolved with the wavelet to produce synthetic seismic traces which are compared to the original seismic. ref name Sen Components of inversionInversion includes both ... and to constrain the inversion. Well logs are first conditioned and edited to ensure there is a suitable ... manner. It is critical at this point to evaluate the accuracy of the tie between the inversion ... measurements including production data . Post stack seismic resolution inversion An example of a post stack seismic resolution inversion technique is the Constrained Sparse Spike Inversion CSSI . This assumes a limited number of reflection coefficients, with larger amplitude. The inversion results ... more details
Phase inversion means the swapping of the two poles of an alternating current source. A phase inversion is neither a time shift nor a phase shift, but simply a swap of plus and minus. For example, in a push pull power amplifier using vacuum tube s, the signal is most often split by a phase splitter aka phase inverter stage which produces two signals, one in phase , and the other out of phase , that is, phase inverted. These two signals then drive the two halves of the first push pull stage, which may be either the output stage in which case the phase splitter will be in between the driver stage if there is one and the output stage or the driver stage. The other common arrangements for driving a push pull stage are by using an isolation transformer to produce the split signals, or by using the in phase half of the first push pull stage to drive the other half. A common circuit using this last technique is the long tailed pair , often seen in television set s and oscilloscope s. In solid state electronics all of these techniques can be used, and phase inversion can also be produced by the use of NPN PNP complementary circuitry, which has no corresponding technique in vacuum tube designs. Phase inversion may occur with a random or periodic, symmetrical or non symmetrical waveform , although it is usually produced by the inversion of a symmetrical periodic Signalling telecommunication signal , resulting in a change in sign. A symmetrical periodic signal represented by f t A e sup j t sup , after phase inversion, becomes f sub 1 sub t Ae sup j t sup , where t is time , A is the magnitude of the vector, is angular frequency 2 f , where f is the frequency and 3.1416 and e 2.7183. The algebraic sum of f t and f sub 1 sub t will always be zero. FS1037C Category Electronics terms Category Wave mechanics electronics stub telecomm stub de Phasenumkehr ... more details
In telecommunication s, bit inversion means the changing of the state of a bit to the opposite state, i.e. the changing of a 0 bit to 1 or of a 1 bit to 0. It also refers to the changing of a state representing a given bit to the opposite state. Source Federal Standard 1037C and MIL STD 188 See also Bit error wiktionary Category Data transmission telecomm term stub ... more details
Image Gray442.png thumb 350px Tibialis anterior and posterior labeled at center top. File Inversion du pied.jpg thumb Inversion of the right foot. Inversion is the movement of the Sole foot sole towards the median plane as when an twisted ankle ankle is twisted . Tibialis anterior and tibialis posterior invert. ref http www.gla.ac.uk ibls fab tutorial anatomy jiet.html University of Glasgow Biomedical & Life Sciences Biomedical & Life Sciences Bot generated title ref Some sources also state that the triceps surae and extensor hallucis longus invert. ref cite book author Kyung Won, PhD. Chung title Gross Anatomy Board Review publisher Lippincott Williams & Wilkins location Hagerstown, MD year 2005 pages 123 isbn 0 7817 5309 0 oclc doi ref It occurs at the subtalar joint and transverse tarsal joint . ref http www.upstate.edu cdb grossanat limbs9.shtml Gross Anatomy Functional Anatomy Of The Ankle And Foot Bot generated title ref References reflist External links http www.octc.kctcs.edu gcaplan anat Notes Image577.gif Diagram at kctcs.edu http www.exrx.net Articulations Foot.html anchor821475 Overview at exrx.net http www.dartmouth.edu humananatomy figures chapter 16 16 5.HTM Joints Category Anatomical terms of motion Category Foot musculoskeletal stub fr Inversion m decine nl Inversie anatomie ... more details
Microscale meteorology is the study of short lived Earth s atmosphere atmospheric phenomena smaller than mesoscale meteorology mesoscale , about 1 km or less. ref cite web url http amsglossary.allenpress.com glossary search?query micrometeorology title AMS Glossary of Meteorology work Micrometeorology accessdate 2008 04 12 publisher American Meteorological Society ref These two branches of meteorology are sometimes grouped together as mesoscale and microscale meteorology MMM and together study all phenomena smaller than Synoptic scale meteorology synoptic scale that is they study features generally too small to be depicted on a weather map . These include small and generally fleeting cloud puffs and other small cloud features. ref cite book last Rogers first R. title A Short Course in Cloud Physics publisher Butterworth Heinemann location Oxford year 1989 isbn 0750632151 pages 61 62 ref Microscale meteorology controls the most important mixing and dilution processes in the atmosphere. ref cite book last Pereira first Norman title Air and Noise Pollution Control publisher Humana Press location Totowa year 1979 isbn 0896030016 pages 200 ref Important topics in microscale meteorlogy include heat transfer and gas exchange between soil, vegetation, and or surface water and the atmosphere caused by near ground turbulence . Measuring these transport processes involves use of micrometeorological or flux towers. Variables often measured or derived include net Electromagnetic radiation radiation , sensible heat flux, latent heat flux , ground heat storage, and fluxes of trace gases important to the atmosphere , biosphere , and hydrosphere . See also Eddy covariance FluxNet Mesoscale meteorology Scale spatial Storm scale Surface weather analysis Synoptic scale meteorology Wind engineering References reflist Category Microscale meteorology climate stub ca Micrometeorologia fr Microm t orologie ko nl Micrometeorologie nn Mikrometeorologi ru uk ... more details
Image Walden inversion 3D balls.png thumb right 200px Montage, using ball and stick model s, of the three steps in an SN2 reaction S sub N sub 2 reaction . The nucleophile is green, the leaving group is red and the three substituents are orange. Image SN2 Walden before and after horizontal 3D balls.png thumb right 200px The S sub N sub 2 reaction causes inversion of stereochemical configuration, known as Walden inversion. Walden inversion is the inversion of a chirality chemistry chiral center in a molecule in a chemical reaction . Since a molecule can form two enantiomer s around a chiral center, the Walden inversion converts the configuration of the molecule from one enantiomeric form to the other. For example, in a SN2 reaction S sub N sub 2 reaction , Walden inversion occurs at a tetrahedral carbon atom. It can be visualized by imagining an umbrella turned inside out in a gale . It was first observed by chemist Paul Walden in 1896. He was able to convert one enantiomer of a chemical compound into the other enantiomer and back again in a so called Walden cycle which went like this succinic acid chlorosuccinic acid 1 in scheme 1 was converted to malic acid 2 by action of silver oxide in water with retention of configuration, in the next step the hydroxyl group was replaced by chlorine to the other isomer of chlorosuccinic acid 3 by reaction with phosphorus pentachloride , a second reaction with silver oxide yielded malic acid 4 and finally a second reaction with PCl sub sub returned the cycle to its starting point. ref cite journal title Ueber die gegenseitige Umwandlung optischer Antipoden author P. Walden journal Berichte der deutschen chemischen Gesellschaft volume 29 issue 1 pages 133 138 year 1896 url doi 10.1002 cber.18960290127 ref Image Walden inversion.png 500px ... effect of two counts of inversion is retention of configuration. ref The Walden cycle revisited a computational ... Inversi de Walden de Walden Umkehr es Inversi n de Walden fr Inversion de Walden nl Inversie scheikunde ... more details
An island of inversion is a region of the chart of nuclides that contains isotope s with a non standard ordering of single particle levels in the nuclear structure nuclear shell model . Such an area was first described in 1975 by French physicists carrying out spectroscope spectroscopic mass measurement s of exotic isotopes of lithium and sodium. Since then further studies have shown that neutron rich isotopes of five elements, Li 11, Na 31, Mg 36, Si 38, and Ca 48 belong to one such region. ref cite web url http www.sciencedaily.com releases 2007 08 070809130011.htm title Physicist Takes A Trip To Nuclear Island Of Inversion date 2007 08 12 accessdate 2011 09 06 ref Because there are 5 known islands of inversion, physicists have suggested renaming the phenomenon as an archipelago of islands of shell breaking . ref cite web url http physics.aps.org articles v3 104 title Islands of insight in the nuclear chart date 2010 12 13 author B. Alex Brown accessdate 2011 09 06 ref Studies with the purpose of defining the edges of this region are still ongoing. See also Table of nuclides combined Table of nuclides Periodic table and Periodic table extended Island of stability References Reflist External links http prola.aps.org abstract PRC v12 i2 p644 1 Abstract and references for the original paper http physics.aps.org articles v3 104 Article on archipelago of shell breaking with map of nuclide table showing the 5 known islands http www.nscl.msu.edu ourlab news 2009 physical review letters new neutron rich nuclei support island inversion theory From Physical Review Letters New neutron rich nuclei support island of inversion theory at the National Superconducting Cyclotron Laboratory website Category Nuclear physics physics stub ... more details
Voice Inversion scrambler scrambling is an analog method of obscuring the content of a transmission. It sometimes used in public service radio, automobile racing, cordless telephones and the Family Radio Service . Without a descrambler, the transmission makes the speaker sound like Donald Duck . It is called voice inversion , but the technique operates on the passband of the information and so can be applied to any information being transmitted. There are various forms of voice inversion which offer differing levels of security. Overall, voice inversion scrambling offers little true security as software and even hobbyist kits are available from kit makers for scrambling and descrambling. The cadence of the speech is not changed. It is often easy to guess what is happening in the conversation by listening for other audio cues like questions, short responses and other language cadences. In the simplest form of voice inversion, the frequency math p math of each component is replaced with math s p math , where math s math is the frequency of a carrier wave . This can be done by amplitude modulation amplitude modulating the speech signal with the carrier, then applying a low pass filter to select the lower sideband . ref name van der Bijl Hendrick J van der Bijl, Method and system for radiosignalling. United States patent 1 502 889, issued 29 July 1924. ref This will make the low tones of the voice sound like high ones and vice versa. This process also occurs naturally if a radio receiver is tuned to a single sideband transmission but set to decode the wrong sideband. There are more advanced forms of voice inversion which are more complex and require more effort to descramble. One ... time. This is called Rolling Code voice inversion and one can often hear the ticks in the transmission which signal the changing of the inversion point. Another method is Split Band Voice Inversion sometimes ... code can also be added to this method for Split Band Variable Inversion. Common carrier frequencies ... more details
oneref date September 2010 In computer science , priority inversion is a problematic scenario in scheduling computing scheduling when a higher priority task computing task is indirectly preemption computing preempted by a lower priority task effectively inverting the relative priorities of the two tasks. This violates the priority model that high priority tasks can only be prevented from running by higher ... shared by the high and low priority tasks. Example of a priority inversion Consider there is a task ... priority ran before a task with high priority, effectively giving us a priority inversion. In some cases, priority inversion can occur without causing immediate harm the delayed execution of the high ..., there are also many situations in which priority inversion can cause serious problems. If the high ... Explanation of priority inversion problem experienced by Mars Pathfinder ref is a classic example of problems caused by priority inversion in Real time computing realtime systems. Priority inversion ... user, or acting subject to realtime response guarantees. Because priority inversion results in the execution ... interrupts are used to prevent priority inversion, there are only two priorities preemptible , and interrupts disabled. With no third priority, inversion is impossible. Since there s only one piece of lock ... inversion is reintroduced by the hardware s prioritization of interrupts. A simple variation ... if not the first papers to point out the priority inversion problem. Also suggested disabling ... not tolerate page faults while in use. External links http foldoc.org priority inversion Description from FOLDOC http citeseer.org cs?q priority inversion Citations from CiteSeer http portal.acm.org ... http www.eetimes.com discussion other 4023947 Introduction to Priority Inversion Introduction to Priority Inversion by Michael Barr Category Concurrency control Category Software bugs Category Embedded systems ca Inversi de prioritat de Priorit tsinversion es Inversi n de prioridades fr Inversion ... more details
Infobox Book See Wikipedia WikiProject Novels or Wikipedia WikiProject Books name A Fatal Inversion title orig translator image Image AFatalInversion.jpg 200px image caption author Barbara Vine Ruth Rendell cover artist country United Kingdom language English language English series genre Crime novel Crime Mystery novel publisher Viking Press Viking release date March 1987 media type Print Hardcover pages 336 pp isbn 0670809772 oclc 23838424 preceded by A Dark adapted Eye followed by The House of Stairs Barbara Vine novel The House of Stairs A Fatal Inversion is a 1987 novel by Ruth Rendell , written under the pseudonym Barbara Vine. The novel won the Crime Writers Association Gold Dagger in that year and, in 1987, was also shortlisted for the Dagger of Daggers , a special award to select the best Gold Dagger winner of the award s 50 year history. Plot summary In the hot summer of 1976, a group of young people are camping in Wyvis Hall. Ten years later, the bodies of a woman and child are discovered in the Hall s animal cemetery. Which woman? Whose child? Adaptation The BBC adapted the novel for television in 1992. The series starred Jeremy Northam and Douglas Hodge . Gold Dagger Award The Barbara Vine Novels DEFAULTSORT Fatal Inversion, A Category 1987 novels Category Novels by Ruth Rendell Category Works published under a pseudonym Category Novels set in Suffolk crime novel stub sv desdiger v ndning ... more details
In meteorology , Souther is a strong wind coming from the south. ref cite web url http www.thefreedictionary.com souther title Souther Definition by the Free Online Dictionary, Thesaurus and Encyclopedia publisher The Free Dictionary date 2006 01 01 accessdate 2011 03 12 ref It s also a term widely used in maritime jargon to indicate, in fact, generally strong wind from the south . References references Category Meteorology ... more details
Use dmy dates date April 2011 Infobox Government agency agency name Bureau of Meteorology nativename ... Mr Barry Grear AO chief1 position Chair, Bureau of Meteorology Advisory Board chief2 name Dr Rob Vertessy chief2 position Acting Director of Meteorology parent agency Department of Sustainability, Environment ... footnotes The Bureau of Meteorology is an Executive Agency of the Government of Australia Australian ... in 1906 under the Meteorology Act, and brought together the States and territories of Australia ... their weather recording responsibilities to the Bureau of Meteorology on 1 January 1908. ref name ABC ... in Perth 20. Meteorology publisher National Archives of Australia date url http www.naa.gov.au ... of Meteorology is the main provider of weather forecast s, warnings and observations to the Australian ..., as well as the Hydrology and Satellite sections. ref cite web title Bureau of Meteorology Head Office 700 Collins Street publisher Bureau of Meteorology date url http www.bom.gov.au inside new accom ... Airport office The Australian Bureau of Meteorology issues Tropical cyclone Tropical Cyclone Advices ... Cyclone Advices , Bureau of Meteorology, 2009 ref and developed the Standard Emergency Warning Signal ... about names.shtml publisher Bureau of Meteorology title Tropical Cyclone Names accessdate 8 August .... Management The Acting Director of Meteorology in the Bureau of Meteorology is Dr Rob Vertessy, after ... of Meteorology director, Dr Greg Ayers publisher Department of Sustainability, Environment, Water, Population ... and Systems and Vicki Middleton Corporate . Former Directors Former Directors of the Bureau of Meteorology ... Water data transfer format References reflist External links http www.bom.gov.au Bureau of Meteorology ... Centre http www.austehc.unimelb.edu.au fam Federation and Meteorology the history of meteorology in Australia http www.top500.org site history 254 Bureau of Meteorology on Top500.org National ... of Australia Category Governmental meteorological agencies in Oceania de Bureau of Meteorology fr Bureau ... more details
Infobox book See Wikipedia WikiProject Novels or Wikipedia WikiProject Books name Primary Inversion title orig translator image image caption author Catherine Asaro illustrator cover artist country USA ... by followed by Catch the Lightning Primary Inversion is a science fiction novel in the Saga of the Skolian ... 2010 ref Synopsis Primary Inversion is set in a future where three star faring civilizations vie ... empires, but for the time being they are safe. Place in the series Primary Inversion is the first ... inversion Fantasy Cafe article. ref ref http www.webscription.net showSection.aspx?Sectionid ... Inversion is The Radiant Seas , which continues the story of Soz, Jaibriol, and Kurj Skolia ... of Primary Inversion is devoted to Soz s attempts to deal with the emotional repercussions of being .... And in dealing with role reversal in Primary Inversion, she explores traditional gender roles ... pleasure. Inversion is the means of faster than light space travel. Instead of breaking the barrier of the speed of light, spaceships in Primary Inversion go around it. By adding an imaginary ... military advantage is based on the fact that the pilots can communicate telepathically while in inversion and arrive in tight formation from inversion. In 1996, Asaro published a paper in the American ... she developed for the fictional star drive used in Primary Inversion. Describing the idea as a mathematical .... Primary Inversion and its sequel, The Radiant Seas , deal with interstellar combat from the perspective of relativistic space travel. The battles in Primary Inversion and other of Asaro s works include ... masterful first novel, by Booklist , Primary Inversion has been called hard science fiction , action ... review Primary Inversion by Catherine Asaro and narrated by Anna Fields content 24529768068 ... on The Radiant Seas and Primary Inversion. ref ref http www.paclink.com ascott nonfic revasaro.htm .... ref ref http www.goodreads.com book show 365672.Primary Inversion Goodreads reviews on Primary Inversion ... more details
Expert verify ceramics related article date May 2008 The room temperature form of quartz , quartz, undergoes a reversible change in crystal structure at 573 C to form quartz. This phenomenon is called an inversion , and for the to quartz inversion is accompanied by a linear expansion of 0.45 . This inversion can lead to cracking of ceramic ware if cooling occurs too quickly through the inversion temperature. This is called dunting , and the resultant faults as dunts . ref Ceramic Faults And Their Remedies. Harry Fraser. A & C Black. 1986. ref To avoid such thermal shock faults, cooling rates not exceeding 50 C hour have been recommended. ref Sanitaryware. Domenico Fortuna. Gruppo Editoriale Faenza Editrice s.p.a. 2000. ref At 870 C quartz ceases to be stable but, in the absence of fluxes, does not alter until a much higher temperature is reached, when, depending on the temperature and nature of the fluxes present, it is converted into the Polymorphism materials science polymorphs of cristobalite and or tridymite . ref Dictionary Of Ceramics. Arthur Dodd & David Murfin. 3rd edition. The Institute Of Minerals. 1994. ref These polymorphs also experience temperature induced inversions. The inversion of cristobalite at 220 C can be advantageous to achieve the cristobalite squeeze . This puts the Ceramic glaze glaze s into compression physical compression and so helps prevent Glaze defects crazing . ref Dictionary Of Ceramics. Arthur Dodd & David Murfin. 3rd edition. The Institute Of Minerals. 1994. ref ref Ceramics Glaze Technology. J.R.Taylor, A.C.Bull. Institute Of Ceramics Pergamon Press. 1986. ref ref Glaze Fit. R.O. Heckroodt. Keramicos 5, No. 2, 1995, pg. 7 9 ref The size of the silica particles influences inversions, conversions and other properties of the ceramic body. ref Effect Of Quartz Particle Size On The Mechanical Behaviour Of Porcelain Tile Subjected To Different Cooling Rates. A.Noni, D.Hotza D, V.Cantavella Soler, E.Sanc ... more details
Image US Air Force Weather specialist.jpg thumb Military weather specialist in US Military meteorology is meteorology applied to military purposes, by armed forces or other agencies. It is one of the most common fields of employment for meteorologists. World War II brought great advances in meteorology as large scale military land, sea, and air campaigns were highly dependent on weather, particularly forecasts provided by the Royal Navy , Met Office and USAAF for the Normandy landing Weather Normandy landing and Strategic bombing during World War II strategic bombing . University meteorology departments grew rapidly as the military services sent cadets to be trained as weather officers. Wartime technological developments such as radar also proved to be valuable meteorological observing systems. More recently, the use of satellite s in space has contributed extensively to military meteorology. Military meteorologists currently operate with a wide variety of military units, from aircraft carriers to special forces. Military Meteorology in the United States United States Navy style float right Image Rating Badge AG.jpg thumb right 150px U.S. Navy Aerographer s Mate Rating Insignia Image Flightmetor.jpg thumb U.S. Navy Flight Meteorologist Insignia Chain of Command Naval Meteorology and Oceanography Command Fleet Numerical Meteorology and Oceanography Center Enlisted Main Aerographer s Mate Enlisted meteorology and oceanography forecasters are called Aerographer s Mate s. Officer Naval meteorology and oceanography officers are Restricted Line Officer Naval Oceanographers restricted line officers in the Badges of the United States Navy Information Dominance Corps Information Dominance ... August 2, 2006 Overview of U.S. military satellite systems for meteorology at http www.globalsecurity.org ... Meteorology and Oceanography Center public website https afweather.afwa.af.mil index.html Air Force ... Military technology Meteorology Category Oceanography fr M t orologie militaire ja ... more details
examplefarm Original research date May 2009 In computer programming , abstraction inversion is an anti pattern arising when users of a construct need functions implemented within it but not exposed by its interface. The result is that the users re implement the required functions in terms of the interface, which in its turn uses the internal implementation of the same functions. Possible ill effects are The user of such a re implemented function may seriously underestimate its running costs. The user of the construct is forced to obscure his implementation with complex mechanical details. Many users attempt to solve the same problem, increasing the risk of error. Abstraction inversion in practice Unreferenced section date March 2009 Ways to avoid this anti pattern include For designers of lower level software If your system offers formally equivalent functions, choose carefully which to implement in terms of the other. Do not force unnecessarily weak constructs on your users. For implementers of higher level software Choose your infrastructure carefully. Examples Alleged examples from professional programming circles include In Ada programming language Ada , choice of the rendezvous construct as a synchronisation primitive forced programmers to implement simpler constructs such as semaphore programming semaphores on the more complex basis. ref name pipeline on ada http www.pipeline.com hbaker1 CritLisp.html fn2 Critique of DIN Kernel Lisp Definition Version 1.2, footnote 2 says ... design to be an abstraction inversion see the links . It is interesting that microkernels ... with heavyweight implementations, and that this may be called an abstraction inversion . ref ref name ... many of the arguments against microkernels and suggests that it is an abstraction inversion to implement ... has suggested that Subversion software Subversion version control system pays for the abstraction inversion ... Inversion at Portland Pattern Repository extensive discussion, much of it taking abstraction inversion ... more details
of a circle is a circle the inverse of a sphere is a sphere. Inversion in a sphere is a powerful ... Pole is inversion from the Earth to a plane. If instead of making a pole the centre, we chose a city, then Inversion could produce a map where all the shortest routes great circles for flying from that city ... are the only self inverse points. Construction As in inversion in a circle, the usual construction, for a point ... File Inver in a sphere, Fig i.pdf thumb centre 450px Fig 1 Inversion of a pair of points Given two points ... on the line, with inverse X , By Inversion of a pair of points , OX P OPX 90 sup o sup . So X lies on a circle ... with inverse X . By Inversion of a pair of points , OX P OPX 90 sup o sup . X lies on a sphere ... point on sphere A, a , with X as inverse. Then by Inversion of a pair of points OP X OXP 90 sup ... T OSX &minus OTX Inversion of a pair of points . TXS external angle equals sum of internal angles 90 ..., with P the inverse of P. Let X be any point of the circle, with inverse X . By Inversion of a pair ... sphere lies on the circle. Results of inversion in a sphere A line through the centre of inversion is self inverse. Generally, the inverse of a line is a circle through the centre of inversion. The inverse of a circle through the centre of inversion is a line. Generally the inverse of a circle is a circle. A plane through the centre of inversion is self inverse. Generally, the inverse of a plane is a sphere through the centre of inversion. The inverse of a sphere through the centre of inversion ... more details
Mesoscale meteorology is the study of weather systems smaller than synoptic scale systems but larger than Microscale meteorology microscale and storm scale cumulus systems. Horizontal dimensions generally range from around 5 kilometers to several hundred kilometers. Examples of mesoscale weather systems are sea breeze s, squall line s, and mesoscale convective complex es. Vertical velocity often equals or exceeds horizontal velocities in mesoscale meteorological systems due to nonhydrostatic processes such as buoyant acceleration of a rising thermal or acceleration through a narrow mountain pass. Subclasses Mesoscale Meteorology is divided into these subclasses Orlanski, 1975 Meso gamma 2 20 km, deals with phenomena like thunderstorm convection, complex terrain flows at the edge to Microscale meteorology microscale , also known as storm scale Meso beta 20 200 km deals with phenomena like sea breezes, lake effect snow storms Meso alpha 200 2000 km fronts, deals with phenomena like squall lines, mesoscale convective systems MCS , tropical cyclones at the edge of synoptic scale Mesoscale boundaries As in surface weather analysis synoptic frontal analysis , literature about mesoscale analysis uses cold, warm, and occluded fronts on the mesoscale to help describe phenomena. On weather maps mesoscale fronts are depicted as smaller and with twice as many bumps or spikes as the synoptic variety. In the United States , opposition to the use of the mesoscale versions of fronts on weather analyses, has led to the use of an overarching symbol a trough symbol with a label of outflow boundary ... See also Microscale meteorology Misoscale meteorology POLYGON experiment Storm scale Storm scale Surface weather analysis Synoptic scale meteorology References reflist Further reading Orlanski, I., 1975 ... and their application to forecasting, in Ray, P. S., ed., Mesoscale Meteorology and Forecasting American ... meted.ucar.edu mesoprim mesodefn print.htm Category Mesoscale meteorology climate stub es Mesoescala ... more details
ERICA , or the Experiment on Rapidly Intensifying Cyclones over the Atlantic , is a scientific field project that started in the winter of 1988 1989. ref name FcstOceanicCyc cite web title Forecasting Oceanic Cyclones At The NOAA author Joseph M. Sienkiewicz Scott Prosise Anthony Crutch publisher http www.opc.ncep.noaa.gov Ocean Prediction Center NOAA date 2004 05 14 url http www.opc.ncep.noaa.gov SOO papers FORECASTING 20OCEANIC 20CYCLONES 20AT 20THE 20NOAA.pdf accessdate 2006 10 29 ref Its aims were to better understand the processes involved in rapid cyclogenesis , and so improve understanding and forecasting of the situations that cause it. References Reflist DEFAULTSORT Erica Meteorology Category Meteorology research and field projects climate stub pt Experiment on Rapidly Intensifying Cyclones over the Atlantic ... more details
Unreferenced date November 2006 In mathematical physics, inversion transformations are a natural extension of Poincar transformation s to include all conformal map conformal one to one transformations on coordinate space time . They are less studied in physics because unlike the rotations and translations of Poincar symmetry an object cannot be physically transformed by the inversion symmetry. Some physical theories are invariant under this symmetry, in these cases it is what is known as a hidden symmetry . Other hidden symmetries of physics include gauge symmetry and general covariance . Early use In 1831 the mathematician Ludwig Immanuel Magnus began to publish on transformations of the plane generated by inversion in a circle of radius R . His work initiated a large body of publications, now called inversive geometry . The most prominently named mathematician became August Ferdinand M bius once he reduced the planar transformations to complex number arithmetic. In the company of physicists employing the inversion transformation early on was Lord Kelvin , and the association with him leads it to be called the Kelvin transform . Transformation on coordinates In the following we shall use imaginary time math t it math so that space time is Euclidean and the equations are simpler. The Poincar transformations are given by the coordinate transformation on space time parametrized by the 4 vectors V math V mu prime O mu nu V nu P mu , math where math O math is an orthogonal matrix and math P math is a 4 vector. Applying this transformation twice on a 4 vector gives a third transformation of the same form. The basic invariant under this transformation is the space time length given by the distance between two space time points given by 4 vectors x and y math r x y ... this transformation twice on a 4 vector gives a transformation of the same form. The new symmetry of inversion ... CPT symmetry Field physics superstrings DEFAULTSORT Inversion Transformation Category Symmetry Category ... more details
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