ABSTRACT: To enhance the reliability and stability of platform screen door (PSD) systems in urban rail transit, this study proposes a novel retrofit system and corresponding methodology. The system ...

In AutoCAD, you can either freeze a layer or turn it off. Both options make the layer invisible, but freezing a layer yields additional benefits when you're working on a complex drawing. By learning ...

Abstract: This tutorial paper presents the mathematics behind the widely observed air-gap field modulation phenomena in electrical machines and derives the duality between electrical machines and ...

Whether you are looking for the right software to fuel your latest design project or picking the best engineering program for a company or class, here’s the best 3D modeling software — and what makes ...

ABSTRACT: Sulfide minerals are a group of compounds with the presence of sulfur. This group’s most abundant and economically members are pyrites, pyrrhotite, chalcocite, galena, sphalerite, and the ...

My work car is a 2010 Ford Territory with a long list of issues that couldn't be fixed at the auto electrician. The speedo sometimes doesn't work, the air-conditioning fan will continue to blow with ...

With more and more developing countries seeking strategies to industrialise, learning institutions are increasingly partnering software development companies to get ahead of their competitors. Call it ...