Pelvic tilt—anterior, posterior, or lateral—is a common postural abnormality that alter your exercise form and put you at ...

Conversely, tailsitters relying solely on tilting rotors have the drawback of insufficient roll control authority in forward flight. This letter proposes a tilt-rotor tailsitter aircraft with both ...

The purpose of this paper is to give a short overview of existing technologies regarding phase shifting transformers (PST's). A classification is made based on the symmetrical or asymmetrical and on ...