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Physics

زبان محتوا

پشتیبانی: CRM@email.irandoc.ac.ir

Concept information

Physics entity > Physics annotation entity > Physics property attribute > Property dimension

اصطلاح مرجح

Property dimension  

نوع

  • http://www.irandoc.ac.ir/onto/irandoc-meta/Concept

مفهوم اعم

مفهوم‌های اخص

منسوخ

  • false

نظر

  • Physics property atribute that is a fundamental coordinate-basis for expressing a value of a physics property as used for dimensional analysis

بحث

  • As for SI and IUPAC conventions, OPB distinguishes: 1) physical dimensions as orthogonal aspects of measureable physical entities (e.g., mass, temperature), vs. 2) the physical units by which such aspects are conventionally quantified (e.g., kilogram, degree Celsius) _______________________________________ OPB:Physical dimension subclasses are a set of base dimensions as identified by either: IUPAC (International Union of Pure and Applied Chemistry) in their Green Book [1] as summarized in: Concise Summary of Quantities, Units and Symbols in Physical Chemistry [2]. IUPAC base quantities are: length, time, mass, electric current, thermodynamic temperature, luminosity, amount of substance. UCUM (Unified Code for Units of Measure [3]) defines an alternative (but ultimately, equivalent) set of base quantity kinds [4] as: length, time, mass, charge, temperature, luminous intensity, angle. In either system, a coherent set of working property dimensions can be derived for for other physical properties as products of base dimensions raised to integer (both positive and negative) powers (e.g., velocity = length•time-1, pressure = force•length-2, volume = length+3). Resources: [1] http://www.iupac.org/home/publications/e-resources/nomenclature-and-terminology/quantities-units-and-symbols-in-physical-chemistry-green-book.html [2] http://www.iupac.org/publications/ci/2011/3304/July11_green-sup-4p.pdf [3] http://unitsofmeasure.org/trac/ [4] http://jamia.oxfordjournals.org/content/jaminfo/6/2/151.full.pdf See also: Schadow, G. and C.J. McDonald. The Unified Code for Units of Measure.; Available from: http://aurora.regenstrief.org/UCUM/ucum.html

برچسب

  • Property dimension

پیشوند آی‌آرآی

  • OPB:OPB_00167

در زبان های دیگر

URI

http://www.irandoc.acir/onto/irandoc/OPB_00167

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