Abstract: The invention presents a urea bio-electrochemical (UBE) system to achieve resource recovery from water recycling systems. A GAC-urease bioreactor was used to recover urea from wastewater stream, and converted to ammonia. Then, the ammonia produced was used to feed an electrochemical cell to gather electrical energy. The invention shows the feasibility of using the UBE system in combination with a forward osmosis subsystem for water reclamation.

Abstract: The invention presents a urea bio-electrochemical (UBE) system to achieve resource recovery from water recycling systems. A GAC-urease bioreactor was used to recover urea from wastewater stream, and converted to ammonia. Then, the ammonia produced was used to feed an electrochemical cell to gather electrical energy. The invention shows the feasibility of using the UBE system in combination with a forward osmosis subsystem for water reclamation.

Abstract: Pitch-synchronous speech processing invention involves two main steps: 1) divide the speech into pitch periods, or into pseudo pitch periods for unvoiced speech, where the breaks occur, for example, at the first zero-crossing preceding each glottal pulse for voiced speech and at any arbitrary point for unvoiced speech, and 2) compute the log-magnitude of the Discrete Fourier Transform (DFT) of each pitch-period waveform, and interpolate each log-magnitude spectrum to a common regular grid which can accommodate the spectrum of a waveform having the longest pitch period anticipated.