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Quantity Value Object and Physical Quantities
Lecture Notes in Physics, 2013In this chapter we will introduce the quantity value object. As the name suggests such an object will be used to assign values to quantities. In classical theory the quantity value object is simply the real numbers since each quantity has, as its value, an element of the Reals.
Cecilia Flori, Flori Cecilia
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Proceedings of the 22nd European Conference on Pattern Languages of Programs, 2017
In this paper an approach is taken towards a pattern language for physical quantities in software applications. The central pattern, Physical Quantity, is described as well as some needed candidate patterns revolving around. The Physical Quantity design pattern is a specialized version of the Quantity analysis pattern, optimized for the SI unit system.
Michael Krisper +3 more
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In this paper an approach is taken towards a pattern language for physical quantities in software applications. The central pattern, Physical Quantity, is described as well as some needed candidate patterns revolving around. The Physical Quantity design pattern is a specialized version of the Quantity analysis pattern, optimized for the SI unit system.
Michael Krisper +3 more
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Information as a physical quantity
Information Sciences, 2017Abstract A new physical conception of classical information in quantum mechanical systems is explicated, critically assessed, and formalized in a quantitative measure. Observer-local referential (OLR) information—a shared physical property of entities accessible to a specified observer—is defined on the joint states of composite systems ...
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Proceedings of the International School of Physics “Enrico Fermi”
1. Introduction; 2. History; 3. Quantities and quantity equations; 3.1. Definitions of quantities; 3.2. Quantities of the same kind; 3.3. Quantity equations and numerical value equations; 4. The equations of physics, definitional constants; 5. The problem of electrical quantities and units; 6.
Stefan Roth, Achim Stahl
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1. Introduction; 2. History; 3. Quantities and quantity equations; 3.1. Definitions of quantities; 3.2. Quantities of the same kind; 3.3. Quantity equations and numerical value equations; 4. The equations of physics, definitional constants; 5. The problem of electrical quantities and units; 6.
Stefan Roth, Achim Stahl
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Software for calculation with physical quantities
2020 IEEE International Workshop on Metrology for Industry 4.0 & IoT, 2020Software support for calculations involving physical quantities is discussed. A Python package (called Quantity-Value) is presented that allows a measured value to be paired with a measurement unit (scale), in an entity that can be used in mathematical operations. The software applies the rules of quantity calculus so that the nature of quantities, and
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The Algebraic Structure of Physical Quantities
Journal of Mathematical Chemistry, 2004The quantities appearing in physical or engineering computations are not pure numbers but include a label namely their dimension. The algebraic structure of these labels has been indicated in more or less extensive ways in books on dimension analysis. The aim of this paper is to explore this structure in a more detailed way.
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Zero-Value Physical Quantities
Synthese, 1999To state an important fact about the photon, physicists use such expressions as (1) “the photon has zero (null, vanishing) mass” and (2) “the photon is (a) massless (particle)” interchangeably. Both (1) and (2) express the fact that the photon has no non-zero mass.
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Quaternion physical quantities
Foundations of Physics, 1977Quaternions consist of a scalar plus a vector and result from multiplication or division of vectors by vectors. Division of vectors is equivalent to multiplication divided by a scalar. Quaternions as used here consist of the scalar product with positive sign plus the vector product with sign determined by the right-hand rule. Units are specified by the
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The dimensions of physical quantities
British Journal of Applied Physics, 1953The Education Group of The Institute of Physics arranged a discussion on dimensions which took place at the Institute's house on 18 March, 1953. The principal speakers were Dr. R Furth, Professor G F Nicholson and Mr. E W H Selwyn and a summary of their addresses and of the subsequent discussion is given in this report.
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