Due to their useful properties such as resistance to diffraction, self-healing, and self-bending even in free space, these beams have attracted great attention with many proposed applications.
The radioisotopes 186Re and 188Re have been extensively investigated for various forms of radiotherapy due to their useful and high-abundance β particle emissions, low-abundance and imageable γ-rays, and chemical resemblance to technetium.
Dual phase (DP) steels having a microstructure consisting of martensite islands, referred to as particles, dispersed in a ferrite matrix have received a great deal of attention due to their useful combination of high strength, high work hardening rate and ductility, all of which are favorable properties for forming processes.
Among them Chebyshev wavelets ([2, 3]) and block-pulse functions ([4, 5, 6]) have gained popularity among researchers due to their useful properties.
Surface wave measurements have been widely used to develop non-destructive evaluation (NDE) techniques for concrete structures in civil engineering due to their useful features (Graff 1991).
In recent years, branched polymers, such as hyper-branched polymers, star-shaped polymers, and dendrimers, have obtained great attention due to their useful mechanical and rheological properties [9, 18, 19].
In the last years, nanostructured carbons (NC) have rapidly attracted the attention of some researchers due to their physicochemical properties useful for many applications among them in adsorption and catalysis.
Bernstein polynomials have a crucial role in the theory of approximation by positive linear operators due to their simple and useful structure.
Today, smart mobile devices (telephones and tablets) are very commonly used due to their powerful hardware and useful features.
Titanium carbide coatings have many applications due to their large number of useful properties such as the increase of the resistance to wear, corrosion, and oxidation of the substrate.
Room temperature ionic liquids (RTIL) have attracted considerable attention due to their many remarkable properties useful for technological applications not only involving formation of metal ion complexes but also as electrolyte.
