Sentence examples for two principal classes from inspiring English sources

We can divide the used substrate into two principal classes.

Two principal classes of metamaterials are treated: (1) metamaterials made of nematic liquid crystals containing nanoparticulates and (2) metamaterials made of nanostructures infiltrated with liquid crystals.

This switch is intimately linked to the architecture of the two principal classes of neural stem and progenitor cells, the apical (neuroepithelial, radial glial) and basal (intermediate) progenitors, which in turn is crucial for their symmetric versus asymmetric divisions.

Currently, several cooperative transmission protocols have been proposed and can be categorized into two principal classes: the amplify-and-forward (AF) scheme and the decode-and-forward (DF) scheme.

A brief description of the structures and the important properties of two principal classes of natural biopolymers, namely, polysaccharides and proteins, are presented with special emphasis on their biomedical applications in wound management products, drug delivery systems, and tissue engineering scaffolds.

Azoles and polyenes are two principal classes [25].

Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary.

Together with oils, fats comprise one of the three principal classes of foodstuffs, the others being proteins and carbohydrates.

The three principal classes of lipids that form the bilayer matrix of biological membranes are glycerophospholipids, sphingolipids, and sterols (principally cholesterol).

There are five principal classes, all derived from cholesterol: progestins (active during pregnancy), the glucocorticoids (promoting the synthesis of glucose and suppressing inflammatory reactions), the mineralocorticoids (regulating ion balances), estrogens (promoting female sex characteristics), and androgens (promoting male sex characteristics).

Four principal classes are recognized when clouds are classified according to the kind of air motions that produce them: (1) layer clouds formed by the widespread regular ascent of air, (2) layer clouds formed by widespread irregular stirring or turbulence, (3) cumuliform clouds formed by penetrative convection, and (4) orographic clouds formed by the ascent of air over hills and mountains.