Page namespace (page_namespace) | 0 |
Page title without namespace (page_title) | 'Intermittency' |
Full page title (page_prefixedtitle) | 'Intermittency' |
Old page wikitext, before the edit (old_wikitext) | '{{Otheruses|Intermittent power source}}
{{Unreferenced|date=August 2008}}
In [[dynamical system]]s, '''intermittency''' is the alternation of phases of apparently periodic and [[Chaos theory|chaotic]] dynamics.<ref>{{cite journal|author=Mingzhou Ding|title=Intermittency|url=http://www.ccs.fau.edu/~ding/Intermittency.pdf|format=PDF reprint|journal={{Fact|date=August 2008}}}}</ref>
In the apparently periodic phases the behaviour is not quite, but only nearly periodic. Thus, rather than a (truly periodic) series of values such as 2, 4, 2, 4, ... one might have something like 2.0001, 4.0003, 2.0002, 4.0001, 2.0003, 3.9999, 1.8715, 6.7486, ... where the first six values are apparently periodic but where the actually chaotic nature of the system becomes apparent after the value 3.9999 is reached.
Intermittency factor is the fraction of time that motion is [[turbulent]], denoted <math>\mu</math>.
In [[technology]], in particular [[electronics]], an '''[[intermittent fault]]''', sometimes called just an "intermittent", is one that does not manifest continuously. These faults are particularly difficult to detect, as they may occur at times when a system is in use, but not when attempts are made to repair it.
==See also==
*[[Turbulence|Turbulent flow]]
*[[Fluorescence intermittency]] (blinking) of organic molecules and colloidal quantum dots (nanocrystals)
== References ==
{{reflist}}
*{{cite book
| author = Staicu, A.D.
| year = 2002
| url = http://alexandria.tue.nl/extra2/200213784.pdf
| title = Intermittency in Turbulence
| publisher = University of Technology Eindhoven
}}
*{{cite book
| author = Vassilicos, J.C.
| year = 2000
| title = Intermittency in turbulent flows
| journal = Intermittency in Turbulent Flows, Edited by JC Vassilicos
| url = http://adsabs.harvard.edu/abs/2000itf..book.....V<!-- http://books.google.com/books?hl=en&id=QjEuvonI3XsC&dq=intermittency&printsec=frontcover&source=web&ots=ODmYwkxeAA&sig=bkoA9lIW4yvPBE-2jtDq8kxReDI&sa=X&oi=book_result&resnum=9&ct=result#PPR9,M1 -->
| isbn = 0521792215
| publisher = Cambridge University Press
| location = Cambridge, U.K.
| oclc = 44162536 44736034
| page = 288
}}
==External links==
[http://www.ibiblio.org/e-notes/MSet/Intermit.htm Transition to chaos through intermittency]
[[Category:Dynamical systems]]
{{physics-stub}}
[[de:Intermittenz]]
[[pl:Intermitencja]]' |
New page wikitext, after the edit (new_wikitext) | '{{Otheruses|Intermittent power source}}
{{Unreferenced|date=August 2008}}BITCH
In the apparently periodic phases the behaviour is not quite, but only nearly periodic. Thus, rather than a (truly periodic) series of values such as 2, 4, 2, 4, ... one might have something like 2.0001, 4.0003, 2.0002, 4.0001, 2.0003, 3.9999, 1.8715, 6.7486, ... where the first six values are apparently periodic but where the actually chaotic nature of the system becomes apparent after the value 3.9999 is reached.
Intermittency factor is the fraction of time that motion is [[turbulent]], denoted <math>\mu</math>.
In [[technology]], in particular [[electronics]], an '''[[intermittent fault]]''', sometimes called just an "intermittent", is one that does not manifest continuously. These faults are particularly difficult to detect, as they may occur at times when a system is in use, but not when attempts are made to repair it.
==See also==
*[[Turbulence|Turbulent flow]]
*[[Fluorescence intermittency]] (blinking) of organic molecules and colloidal quantum dots (nanocrystals)
== References ==
{{reflist}}
*{{cite book
| author = Staicu, A.D.
| year = 2002
| url = http://alexandria.tue.nl/extra2/200213784.pdf
| title = Intermittency in Turbulence
| publisher = University of Technology Eindhoven
}}
*{{cite book
| author = Vassilicos, J.C.
| year = 2000
| title = Intermittency in turbulent flows
| journal = Intermittency in Turbulent Flows, Edited by JC Vassilicos
| url = http://adsabs.harvard.edu/abs/2000itf..book.....V<!-- http://books.google.com/books?hl=en&id=QjEuvonI3XsC&dq=intermittency&printsec=frontcover&source=web&ots=ODmYwkxeAA&sig=bkoA9lIW4yvPBE-2jtDq8kxReDI&sa=X&oi=book_result&resnum=9&ct=result#PPR9,M1 -->
| isbn = 0521792215
| publisher = Cambridge University Press
| location = Cambridge, U.K.
| oclc = 44162536 44736034
| page = 288
}}
==External links==
[http://www.ibiblio.org/e-notes/MSet/Intermit.htm Transition to chaos through intermittency]
[[Category:Dynamical systems]]
{{physics-stub}}
[[de:Intermittenz]]
[[pl:Intermitencja]]' |
