Abstract: This paper describes the design, fabrication, and testing of a single-chip micromachined implementation of a Knudsen pump, which uses the principle of thermal transpiration, and has no ...

First lady Melania Trump was allegedly used as “window dressing” in a multi-million-dollar memecoin scheme that deceived investors and enriched its crypto ...

NO. BILLERICA, Mass., Oct. 21, 2025 /PRNewswire/ -- Mass-Vac, Inc., a distributor for NAVAC Inc., has introduced a new line of quiet-running and economical small vacuum pumps for applications such as ...