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=                                SDF                                 =
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                             Introduction                             
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SDF may refer to:


 File formats 
==============
* Simple Data Format, for binary data
* Spatial Data File, for geodatabases
* Standard Delay Format, for timing data
* SQL Server Compact Edition Database File (filename extension: .sdf)
* Structure data file, for chemical tables
* Scientific Data Format, a Hierarchical Data Format implementation


 Formal computer science 
=========================
* Signed distance function (or field), in mathematical applications
* Syntax Definition Formalism, to describe formal languages


 Other uses in computing 
=========================
* Software development folder, a physical or virtual container for
software project artifacts
* Synchronous Data Flow, a restriction of Kahn process networks
* SDF Public Access Unix System, a shared shell provider


                       Entertainment and media                        
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* Südtirol Digital Fernsehen, a TV station in South Tyrol, Italy
* Super Dimensional Fortress, warships in the Robotech/Macross
franchise
* Settlement Defense Front (SDF), an enemy faction of 'Call of Duty:
Infinite Warfare'


 Military forces 
=================
* Japan Self-Defense Forces
* State defense force, US
* Sudan Defence Force, 1925-1955
* Syrian Democratic Forces, North and East Syria


 Political parties 
===================
* Sikkim Democratic Front, India
* Social Democratic Federation (United States), 1936-1956
* Social Democratic Federation, UK, 1884-1911
* Social Democratic Forum, Hong Kong, 2000
* Social Democratic Front (disambiguation), Cameroon and Ghana
* Socialist Democratic Federation (Japan), 1978-1994


 Other organizations 
=====================
* Scouts de France, youth group
* Serb Democratic Forum, Serbs of Croatia


                                Places                                
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* Louisville International Airport, Kentucky, US (by IATA code)
* Soquel Demonstration State Forest, California, US


                               Science                                
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* Silver diammine fluoride, in dentistry
* Stromal cell-derived factor (disambiguation), SDF1, SDF1a, etc.
* Subwavelength-diameter optical fibre
* Synchronous diaphragmatic flutter or hiccup


                              Other uses                              
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* SDF Group (SAME Deutz-Fahr), an Italian-based agricultural machine
manufacturer
* Simplified directional facility, an aviation instrument approach
navigational aid
* Stochastic discount factor, in econometrics


 License 
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All content on Gopherpedia comes from Wikipedia, and is licensed under CC-BY-SA
License URL: http://creativecommons.org/licenses/by-sa/3.0/
Original Article: http://en.wikipedia.org/wiki/SDF


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