In the present paper, a simplified homogenized beam theory is used in the context of a numerical investigation regarding the dynamic behavior of a rotating composite hollow shaft. For this aim, a ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Ben Keough Ben Keough is an editor covering cameras, working from home, ...

First, the payload requirements and problems faced by traditional multi-beam antenna are described. The user beam of the VHTS payload system mainly uses Ka-band multi-beam antenna for a large range of ...

Microscope images could be obtained much more quickly -- rather than one pixel at a time -- thanks to a new imaging method for neutral atomic beam microscopes. It could ultimately lead to engineers ...

This is an updated version of a story first published on March 31, 2024. The original video can be viewed here. This report is the result of a joint investigation by 60 Minutes, The Insider, and Der ...

Abstract: The aim of this paper is to investigate a direct numerical method for solving a class of a fractional variational problem (FVP). The fractional derivative in the FVP is in the Caputo sense.

As polling takes center stage again this election year, understanding its strengths and weaknesses is critical. At Pew Research Center, we’ve looked hard at the advantages and limitations of our ...

Abstract: Curved beams are frequently used structural elements in traditional and emerging fields of civil and mechanical engineering with usual requirements of vibration and deformation analyses ...