A chip has been designed at NASA's Jet Propulsion Laboratory to increase the usefulness of monolithic millimeter-wave integrated circuit (MMIC) components at submillimeter-wave frequencies. The chip incorporates two integrated, radial E-plane probes with an MMIC amplifier in between, thus creating a fully integrated waveguide module. This technique can be used in submillimeter-wave imaging in homeland security, weapons detection, and commercial test equipment. Click here .
A proposed system from NASA's Jet Propulsion Laboratory would exploit the ocean thermal gradient for recharging the batteries in a battery-powered unmanned underwater vehicle (UUV). A UVV is essentially a small exploratory submarine robot, and one of this type travels between the ocean surface and depths, measuring temperature and salinity. They have been deployed in large numbers in research pertaining to global warming. The proposed system would include a turbine driven by working fluid subjected to a thermodynamic cycle. Click here .
