As to differences of style, regularities of form and tradition do occur such that it is possible to attribute particular African art objects to particular places, regions, or periods.
Patterns in nature are visible regularities of form found in the natural world.
The paper presents the results of studies on main regularities of forming a two-component Cr N material under conditions of simultaneous chromium deposition and its bombarding with nitrogen ions of 30 keV energy.
We work under rather general assumptions on weights that destroy minimal local Sobolev regularity of the form domain.
In comparison with binary condensation of M and T, the introduction of P can improve the structural crystallinity, conjugation and regularity of terpolymer by forming imine bonds, thus enhancing visible light absorption and separation of photogenerated electron-holes.
In this work the quality, arrangement, composition, and regularity of nanoporous AAO formed on the low-purity (AA1050) and high-purity aluminum during two-step anodization in a mixture of sulfuric acid solution (0.3 M), water and glycol (3:2, v/v), at various voltages (15, 20, 25, 30, 35 V) and at temperature of −1 °C, are investigated.
In Vavilov's words, "Species and genera that are genetically closely related are characterized by similar series of heritable variations with such regularity that knowing the series of form within the limits of one species, we can predict the occurrence of parallel forms in other species and genera.
Kim et al. [5, 6] obtained the regularity of functions on the form of reduced quaternions in Clifford analysis.
Because of the regularity in the form of the mathematical function, models based on approximate formalisms can be automatically built from the reaction scheme of the target system.
