A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...

Abstract: Humanoids locomote by making and breaking contacts with their environment. Thus, a crucial question for them is to anticipate whether a contact will hold or break under effort. For rigid ...

From super-sized natural wonders and man-made marvels to some of the weirdest, creepiest, and teeny-tiniest sights, we take a ...

CAIRO, Nov 30 (MENA) – Prime Minister Mostafa Madbouly emphasized the great attention given to the Giza Plateau area and its surrounding regions, especially with the opening of the Grand Egyptian ...

Prime Minister Mostafa Madbouly emphasized the great attention given to the Giza Plateau area and its surrounding regions, especially with the opening of the Grand Egyptian Museum and the continuous ...

Abstract: Although deep learning-based surface defect detection approaches have performed remarkably well in recent years, the complicated shapes and large size differences of surface defects still ...

The work presented in this study is concerned the development of a new solar cell prototype in order to improve photovoltaic efficiency In this model we show that the material can have five and more ...

To further improve the strike accuracy and penetration power of explosively-formed projectile (EFP) after long-distance flight, a polygonal charge capable of forming EFP with tail fins was designed ...

Dozens of foreign missions carried out over three decades using the latest high-tech instruments failed to find the causeway of the Great Pyramid of Giza. But in 2015, unexpectedly, the passage was ...

Over the past several years, significant advances have been made in the development of high-surface-area porous cages. Despite this, relatively little work has been done to explore their use for the ...