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## Abstract A fully integrated CMOS ultraβwideband (UWB) transmitter module is proposed for UWB applications. The transmitter module consists of a bandβnotched UWB antenna and a transmitter IC which integrates a pulse generator, a gating signal generator and driver amplifiers (DAs). The drive ampli
recast ionic conductor added to the catalyst layer is a sensittve function of the nature of the catalyst. Other elements of membrane/electrode assembly (MEA) optimization efforts are also described, highlighting the ability to resolve, to a large degree, a well-documented problem of polymer electrol
## Abstract We present a new strategy for fabricating thermally responsive adjustable stiffness materials. A microfabricated heater embedded within a composite film is used to modulate the temperature of a low melting point polymer. Currents ranging from 0 to 200βmA were applied to the microheater
Incorporation of Solid-oxide fuel cells (SOFC) into hybrid systems with CHP capabilities is an attractive option for clean and efficient decentralised electricity generation. SOFC system operation on practical liquid fuels requires an efficient preparation system for the formation of a homogeneous r