Abstract: Expression of functionally active recombinant single chain antibodies in prokaryotic and eukaryotic heterotrophic algae for pathogen treatment or control in aquaculture and agriculture applications is disclosed; and subsequent modification of the strains to generate transgenic algae propagated under defined conditions.

Abstract: A method and apparatus for measuring signals conveyed by a varying the voltage polarity across the tip and ring terminals in a telephone system is disclosed. The invention provides a composite circuit including a first stage in the form of a differential amplifier, a second stage in the form of a low pass filter, and a third stage in the form of a Schmidt trigger. The invention is capable of discerning an intentional polarity reversal telephony signal by eliminating transmission noise, as well as false triggering due to a high frequency (relative to a defined threshold) ring signal.

Abstract: Expression of functionally active recombinant single chain antibody in prokaryotic and eukaryotic heterotrophic algae cells for pathogen treatment or control in aquaculture and agriculture applications is disclosed; and subsequent modification of the strains to generate transgenic algae propagated in defined conditions.

Abstract: A fault sensor suitable for use in a heterogenous power distribution system executes a stored program and causes sufficient information to be collected to distinguish a source of fault current as being from a public utility portion of the power distribution network or from a distributed generator. Short circuit current and magnetizing current are reliably distinguished based on differences in VI "signatures." In addition, the fault sensor periodically senses a condition of a battery of the fault sensor. When the condition of the battery indicates the battery power is low, the fault sensor sends a digital data signal including a low battery indication to a remote location. Subsequent to occurrence of a sustained power outage, the sensor detects that power has been restored and sends to a remote location a digital data signal including an indication that power has been restored. The sensor periodically measures peak line voltage and peak line current and reports peak values to the remote location.

Abstract: A fault current sensor device detects and distinguishes abnormal current events on alternating current overhead and underground power transmission lines. The sensor distinguishes whether the momentary or sustained fault is a line-to-ground fault, line-to-line fault or a three-phase fault. The sensor determines whether the overload has occurred on all three phases, or only on one or two phases, of the power line in an unbalanced situation. The device can be remotely reprogrammed to alter its trigger or threshold level and can be remotely reset after a fault has occurred.

Abstract: A method and a fault sensor device (1) which can detect and distinguish abnormal current and voltage events on an alternating current overhead and underground transmission line or distribution line (2). The fault sensor device (1) is contained in an elongated molded plastic housing (4), The fault sensor device (1) includes a current sensor (12) and a voltage sensor (14) connected in proximity to the transmission or distribution line (2) for monitoring current and voltage analog signals; an analog-to-digital converter (22) connected to the current and voltage sensors (12,14) for sampling the current and voltage analog signals and producing: corresponding digital signals; a processor (11) responsive to the digital signals for detecting an abnormal condition and distinguishing whether any of a plurality of types of faults has occurred; and a transmitter (3) for transmitting the fault information from the processor (11) to a remote location.

Abstract: A fault sensor device which can detect and distinguish abnormal current and voltage events on an alternating current overhead and underground power transmission or distribution line. The abnormal current events are momentary outage, sustained outage, normal overload, and inrush on transmission or distribution lines. The sensor can further distinguish whether the momentary or sustained fault is a line to ground fault, line to line fault or a three phase fault. It can also identify the faulted phase(s). In the overload scenario, the sensor can identify if the overload has occurred on all three phases or only on one or two phases of the power line in an unbalanced situation. The voltage events are open line(s) on one, or two of the phases with a possibility of a fallen live wire and voltage sag. The sensor can identify which of the three phases or if all three phases of the power line are open or on the ground.