Abstract: A water soluble dietary supplement packet including a water soluble membrane in a form of a packet and at least one dietary supplement in a powder form sealed within the water soluble membrane. The water soluble membrane is configured to dissolve when immersed in liquid and release the at least one dietary supplement into the liquid to be orally consumed by a user. The water soluble dietary supplement packet is formulated for enhancing physical performance when consumed. A method of preparing a dietary supplement aqueous solution is also provided.

Abstract: A Langmuir probe for measuring characteristics of a plasma driven by radio frequency (RF) power comprises an elongated conductor 10 having an exposed tip 1 for insertion into an RF plasma and an outer end 3 for connection to external measuring circuitry. In order to reduce distortion over a range of RF frequencies, the probe includes an RF voltage divider 11, 12, 13, 14 in series between the tip and outer end of the conductor.

Abstract: A Langmuir probe for measuring characteristics of a plasma driven by radio frequency (RF) power comprises an elongated conductor 10 having an exposed tip 1 for insertion into an RF plasma and an outer end 3 for connection to external measuring circuitry. In order to reduce distortion over a range of RF frequencies, the probe includes an RF voltage divider 11, 12, 13, 14 in series between the tip and outer end of the conductor.