Recently, a number of experimental observations on the superluminal group velocities pulses propagating in dispersive media have led to reconsidering electromagnetism theory an unconventional framework. To consider faster-than-light phenomena, it is not necessary replace current relativistic theory, but sufficient extend motions way that preserves principle causality. In present paper, new appr...

Several methods to recycle the top-cut scrap generated during directional solidification of solar silicon are currently being researched. One of these is particle removal by gravity sedimentation. However, natural settling of inclusions by gravitational forces is a slow process and not attractive to industry. This study investigated the sedimentation of micrometer size inclusions (≤ 10 μm) from...