The phrase "a pyramidal structure" is correct and usable in written English.
It can be used to describe a physical structure that resembles a pyramid or to refer to an organizational or hierarchical arrangement that has a pyramid-like shape.
Example: "The company adopted a pyramidal structure to streamline decision-making and improve communication across different levels."
Alternatives: "a pyramid-shaped structure" or "a hierarchical structure".
How would a pyramidal structure win Congressional seats for Democrats in Texas or Alabama?
Unlike the Mafia, investigators say, with a pyramidal structure with a boss, captains and soldiers, Korean Power consists of Big Brothers, the brains of the group, and Little Brothers, who do the dirty work.
The title king of kings, used even in the 20th century by the shahs of Iran, implies that the central authority exercised power through a pyramidal structure that was controlled at levels below the supreme authority by individuals who were themselves, in a certain sense, kings.
They may be thought of generally as forming a pyramidal structure, with three tiers representing increasing degrees of specialization and technical sophistication but catering to diminishing numbers of patients as they are filtered out of the system at a lower level.
Shimizu's approached the task of designing a building for a large population by proposing a pyramidal structure rising up to approximately two kilometres.
He added that the distribution of funds resembles a pyramidal structure, with most funds and fellowships available for the earliest stage researchers, and fewest for the most senior.
For illustrative measurements, three different samples were used: a calibration grating that is usually used for commercial scanning probe microscopes calibration, a microchip surface and a solar cell surface with a typical pyramidal structure used for light trapping.
According to SEM images and EBSD results, all layers except the last one showed a truncated pyramidal structure which is a typical morphology for Ni deposited coatings with [100] preferred texture.
Ligand coupling reactions of sulfoxides, involving concerted intramolecular coupling of two groups bonded to sulfur, occur via a tetrasubstituted sulfurane intermediate with a trigonal pyramidal structure.
Hazeland and Hu [26] formed a titled pyramidal structure by using potassium carbonate, which shows a lower reflectance compared to polished surfaces.
In a regular pyramidal structure, the reflectance value is reduced to ~10%%.
