An extension of the methods of dimensional analysis to include the orientations of physical quantities shows that a useful approach is to assign orientations to the supplementary units, radian and steradian, and to require that physical equations be orientationally as well as dimensionally homogeneous. Orientational symbols representing the intuitive orientational character are shown to form a noncyclic Abelian group with four members. The methods of Nike Basket Blazer Mid Femme dimensional analysis derives from the fact that the laws of physics must be independent of the units; orientational analysis derives from the fact that they must also be independent of the coordinate system, i.e. they are expressible as tensor equations.
Gross α and gross β activities were determined for 27 different tap water samples collected from Eastern Blazer Nike Black Sea region of Turkey. The instrumentation used to count the gross α and gross β activities was a α/β counter of the low background multiple detector type with 10 sample detectors (Berthold LB770). The obtained results showed that natural activity concentrations of α- and β-emitting radionuclides in tap water samples did not exceed WHO and ITS recommended levels. Concentrations ranging from 0.2 mBq/l to 15 mBq/l and from 25.2 mBq/l to 264.4 mBq/l were observed for the gross α and gross β activities, respectively. For all samples the gross β activities were higher than the corresponding gross α activities.
Given a real algebraic number field K we consider the following possible properties of a multiplicative subsemigroup S of K∗: Chaussure Nike Blazer Basse (1) Sα is dense modulo 1 for every α ∋ K. (2) Sα is dense modulo 1 for every α ≠ 0. A full characterization of those semigroups satisfying each of these properties is obtained. In particular, it follows that a semigroup possessing one of these properties has a subsemigroup, generated by two elements, with the same property. Given a finitely generated semigroup, one can effectively decide whether or not it satisfies either one of the aforementioned properties. A p-adic analogue of the main result is studied as well.
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