The excellent heat removal capability of pressurized superfluid helium, HeIIplVg, has led in recent years to its use as a coolant in fusionlo and acceleratorll magnets where the operating temperature is typically in the range of 1.8 to 2. K. More recently, He-IIp has been proposed as the coolant for a polarized proton target at temperatures as low as 0.5K12. In all cases the HeIIp acts as an ai...

Microchannel heat sinks are widely regarded as being amongst the most effective heat removal techniques from space-constrained electronic devices. However, the fluid flow and heat transfer in microchannels is not fully understood. The pumping requirements for flow through microchannels are also very high and none of the micropumps in the literature are truly suitable for this application. Resul...

Open channel block (OCB) is a process by which ions bind to the inside of a channel pore and block the flow of ions through that channel. Repulsion of the blocking ions by membrane depolarization is a known mechanism for open channel block removal. For the N-methyl-D-aspartate (NMDA) channel, this mechanism is necessary for channel activation and is involved in neuronal plasticity. Several type...

This paper presents a technology for the removal of bubbles using two mechanisms electric and acoustic actuation. In this study, dielectrowetting was used to separate from surface substrate, while actuation transfer eliminate separated by acoustically exciting them. addition, electrical signals various voltages frequencies were applied patterned electrodes fabricated through standard microfabri...