Results 21 to 30 of about 2,827,719 (353)
On Angular Measures in Axiomatic Euclidean Planar Geometry
Measurement Science Review, 2022 We address the issue of angular measure, which is a contested issue for the International System of Units (SI). We provide a mathematically rigorous and axiomatic presentation of angular measure that leads to the traditional way of measuring a plane ...
Grötschel Martin +3 more
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On the five base quantities of nature and SI (The International System of Units) [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2011 It is shown here that five base quantities (and the corresponding five base units) of nature are sufficient to define all derived quantities (and their units) and to describe all natural phenomena.
Kaptay G.
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Вестник Самарского университета: История, педагогика, филология, 2023 The article considers the types of phraseological nominations of the terminological system of international law, and also determines the type of connection between the components in their structure.
I. A. Pugachevskaya
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Metrology of the XXI century. Radio engineering quantities and standards in the SI system of units [PDF]
Известия Саратовского университета. Новая серия: Физика, 2022 Background and Objectives: The article discusses the methodological recommendations for teachers and experimental researchers on metrological support of measurements and the correct use of units of physical quantities when reading courses in the ...
Khokhlov, Arthur V.
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Is the proton radius a player in the redefinition of the International System of Units?
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2011 F. Nez +31 more
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Traceability of optical frequency to SI second via UTC(NIM)
Frontiers in Physics, 2022 Absolute frequency measurement of an optical clock is a milestone towards the redefinition of second in the International System of Units. This work summarizes briefly the measurement of frequency ratio between an optical clock and the second, applying ...
Yuzhuo Wang +3 more
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The international system of units (SI) - conversion factors for general use
, 2006 Kenneth Butcher +2 more
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The international system of units (SI)
Comptes Rendus. Physique, 2004 The SI (Système international d'unités), adopted by the Conférence générale des poids et mesures in 1960, was the outcome of almost one century of progress in the establishment of a consistent system of measurement units. We present its main features with its base and derived units, which constitutes a coherent set of units related by rule of ...
Kovalevsky, J., Quinn, T.J.
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No Rationale for a Redefinition of the Mole
CHIMIA, 2009 In the wake of the redefinition of the kilogram, the last unit of the International System of Units (SI) that is still based on a man-made artefact, discussions were launched on the necessity of redefining other units, amongst other the unit ...
Hanspeter Andres +4 more
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International development of the SI in FAIR digital data
Measurement: Sensors, 2021 The International Committee for Weights and Measures has recognised the need to provide support for digital representations of the International System of Units (SI) and related metrological concepts, such as traceability and measurement uncertainty.
S.J. Chalk +9 more
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