Abstract: A microbial fuel cell multiplexer apparatus, system and method. In one embodiment, a microbial fuel cell (MFC) multiplexer, comprising a microcontroller suitable for receiving information from a MFC electronics unit and reformatting the information according to a communications protocol, and further comprising a processor and a non-transitory storage medium capable of storing machine-readable instructions; a host port connected to a host platform, wherein the host platform provides a power source and an operating terminal; a plurality of isolator chips, electrically connected to the microcontroller, designed to isolate a plurality of MFCs; and a plurality of unit ports each arranged to connect each of the plurality of isolator chips to one of the plurality of MFCs.

Abstract: A low force pull-apart underwater connector apparatus, system, and a method of manufacturing. In one embodiment, a low-force pull-apart waterproof connector a receptacle having at least two receptacle pins, wherein the receptacle is electrically connected to a first wire, a plug having at least one plug pin, configured to selectively mate with the receptacle to form an electrical connection, wherein the at least one plug pin is oriented parallel to the at least two receptacle pins, and wherein the plug is electrically connected to a second wire, and a compressive seal sleeve filled with a marine-grade silicon grease tightly surrounding the electrical connection of the plug and the receptacle, and wherein the connection is operable to disconnect with the application of a low force.

Abstract: A cavity oscillator comprising: an amplifier operable to provide energy to a local oscillating signal; a superconducting resonant cavity arranged to receive the local oscillating signal and being operable to reflect a portion of the local oscillating signal for use in a feedback circuit, to support an electromagnetic wave related to the local oscillating signal in a desired TM mode, and to output a filtered signal of a desired frequency or frequencies based on the geometry of the cavity; a feedback circuit operable to generate an error signal based on the local oscillating signal and the reflected signal; and a phase shifter arranged operable to adjust the filtered signal based on the error signal to generate an adjusted filtered signal. The amplifier can amplify the adjusted filtered signal.