Before you apply GD&T to your holes, you need to understand some basic concepts that are essential for hole alignment. These include datum reference frames, feature control frames, and tolerance ...

Pregnancy is possible in any sex position, including standing and rider-on-top positions, if ejaculate enters the vagina. In some cases, sperm can reach the cervix within 15 minutes.

Dynamic wireless power transmission (DWPT) technology is recently proposed as a new solution for the anxiety of battery capacity limit of electric vehicles. To m ...

We present the design and simulation of a high efficient optical chip-to-chip coupling structure. The position tolerance (3dB coupling efficiency) can be as large as 1.0 μm when the polymer waveguide ...