Abstract: A method of voltage instability load shedding, that includes the steps of measuring current and voltage waveforms of an electrical system at a local bus estimating the Thevenin equivalent admittance based on Kalman Filter techniques, then a voltage stability margin index is calculated using the voltage magnitude. The determined Thevenin admittance and the load at the local system bus and the calculated voltage stability margin index is compared with a predetermined threshold value to determine whether to initiate a load shedding action.

Abstract: A method of voltage instability load shedding, that includes the steps of measuring current and voltage waveforms of an electrical system at a local bus estimating the Thevenin equivalent admittance based on Kalman Filter techniques, then a voltage stability margin index is calculated using the voltage magnitude. The determined Thevenin admittance and the load at the local system bus and the calculated voltage stability margin index is compared with a predetermined threshold value to determine whether to initiate a load shedding action.

Abstract: A method that includes streaming video content at a given bit-rate from a computing platform through a wireless access point and to a digital media adaptor that decodes the video content for display. A communication channel used to stream the video content to the digital media adaptor is monitored and information associated with the communication channel as at least a portion of the video content is streamed from the computing platform to the digital media adaptor is collected. Available bandwidth for the communication channel is determined based on the collected information. An adjustment to the given bit-rate that another portion of the video content is streamed from the computing platform is made based on the available bandwidth.

Abstract: A hand-held ultrasound system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The electronics communicate with a host computer using an industry standard high speed serial bus.

Abstract: A hand-held ultrasound probe system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The probe electronics communicates with a host computer using an industry standard high speed serial bus.

Abstract: A wet tissue rolling-up device including a drive roller and a driven roller connected between two side boards, a conveying belt mounted around the drive roller and the driven roller and turned by the drive roller to deliver a wet tissue, and a guide belt surrounding the conveying roller and adapted for guiding delivered wet tissue, causing it to roll up into a wet tissue roll, wherein the conveying belt has a toothed inner wall, the drive roller and the driven roller hold a respective pair of ball bearings around a respective axle between the side boards and have a respective toothed outside wall meshed with the toothed inner wall of the conveying belt; a constraint device is mounted between the side boards to prohibit the conveying belt from moving sideways when the conveying belt is turned forwards by the drive roller.