Abstract: An example putter presented herein is designed manufactured in a way that allows for a golfer to adjust weight balance of the golf club head by moving respective weights through a toe-side track and a heel-side track on a bottom side of the golf club head. The putter may also be configured with adjustable toe-hang, face material, and loft all in one club, in order to optimize the club for the day's game without having to purchase a new golf club each time one desires to try something new. The putter head can combine a removable, stackable face plate with a continuous range of shaft attachment points to allow a golfer to adjust each factor all in one club.

Abstract: A multifunctional piece of athletic and/or work wear is presented. When worn as a compression sleeve to play rugby, American football and other ball-carrying sports (with oblong or round balls), or when worn to carry objects during physical labor, an object contact surface positioned on the inner forearm of the sleeve can grip the carried object with increased friction while an outside facing surface of the sleeve can be smooth to deflect defenders or objects that may impact the sleeve, can be padded to protect from impacts, can provide protection from contusions and lacerations, and/or can provide active cooling. The garment can further include static or dynamic readable symbols or images woven or knitted into the garment (rather than printed or fused onto the garment).

Abstract: A frequency-selective system that may be used as, or as part of, an add/drop multiplexer. An input signal is fed to a Mach-Zehnder interferometer configured to drop, or suppress, by destructive interference, a signal component in a first frequency band from among a plurality of frequency bands. One or more bandpass filters in one arm of the Mach-Zehnder interferometer suppress other frequencies, outside of the first frequency band, so that signals at these other frequencies are not suppressed by destructive interference and are present at the output of the Mach-Zehnder interferometer. A coupler connected after the output of the Mach-Zehnder interferometer adds, into the signal path, a replacement for the dropped signal.

Abstract: A frequency-selective system that may be used as, or as part of, an add/drop multiplexer. An input signal is fed to a Mach-Zehnder interferometer configured to drop, or suppress, by destructive interference, a signal component in a first frequency band from among a plurality of frequency bands. One or more bandpass filters in one arm of the Mach-Zehnder interferometer suppress other frequencies, outside of the first frequency band, so that signals at these other frequencies are not suppressed by destructive interference and are present at the output of the Mach-Zehnder interferometer. A coupler connected after the output of the Mach-Zehnder interferometer adds, into the signal path, a replacement for the dropped signal.

Abstract: A frequency-selective system that may be used as, or as part of, an add/drop multiplexer. An input signal is fed to a Mach-Zehnder interferometer configured to drop, or suppress, by destructive interference, a signal component in a first frequency band from among a plurality of frequency bands. One or more bandpass filters in one arm of the Mach-Zehnder interferometer suppress other frequencies, outside of the first frequency band, so that signals at these other frequencies are not suppressed by destructive interference and are present at the output of the Mach-Zehnder interferometer. A coupler connected after the output of the Mach-Zehnder interferometer adds, into the signal path, a replacement for the dropped signal.

Abstract: A frequency-selective system that may be used as, or as part of, an add/drop multiplexer. An input signal is fed to a Mach-Zehnder interferometer configured to drop, or suppress, by destructive interference, a signal component in a first frequency band from among a plurality of frequency bands. One or more bandpass filters in one arm of the Mach-Zehnder interferometer suppress other frequencies, outside of the first frequency band, so that signals at these other frequencies are not suppressed by destructive interference and are present at the output of the Mach-Zehnder interferometer. A coupler connected after the output of the Mach-Zehnder interferometer adds, into the signal path, a replacement for the dropped signal.

Abstract: The modular aquaponics assembly includes a frame, at least one tray adapted for retaining water and supporting at least one container for retaining a growing medium therein for support plants. A light fixture is disposed within the frame above the at least one tray, and an aquarium for supporting aquatic fauna is positioned near the bottom of the frame. A water circulating system is provided for circulating water from the aquarium through the at least one tray and back to the aquarium. In one embodiment, the frame is adapted to removably sit on top of the aquarium. In another embodiment, an outer skin encloses the frame, aquarium and other components to create an aesthetically pleasing structure that is both decorative and functional.

Abstract: The modular aquaponics assembly includes a frame, at least one tray adapted for retaining water and supporting at least one container for retaining a growing medium therein for support plants. A light fixture is disposed within the frame above the at least one tray, and an aquarium for supporting aquatic fauna is positioned near the bottom of the frame. A water circulating system is provided for circulating water from the aquarium through the at least one tray and back to the aquarium. In one embodiment, the frame is adapted to removably sit on top of the aquarium. In another embodiment, an outer skin encloses the frame, aquarium and other components to create an aesthetically pleasing structure that is both decorative and functional.

Abstract: An adaptive interference canceller for canceling an interfering signal corresponding to a delayed, frequency translated, amplitude and phase offset version of a transmitted signal contained in a composite received signal relayed through a relay system such as a satellite transponder. The canceller digitally downconverts the received signal and a local replica of the transmitted signal from IF to baseband, applies a variable delay and frequency compensation to the replica as a coarse delay and frequency correction, and tracks fine delay, amplitude and phase differences using an adaptive finite impulse response filter to generate a cancellation signal corresponding to the delayed and frequency shifted version. A minimum output power process produces an error signal that drives the variable delay and adaptive filter to minimize the power in the signal of interest to maximize cancellation of the interfering signal.