Abstract: Novel dielectric foam structures for use as in radio frequency (RF) devices are provided. For example, additively manufactured dielectric foam (AMDF) structures suitable for replacing foams in the context of antenna substrates, and methods of manufacture such foams and substrates, can be used to withstand crushing and high temperatures when being laminated, and exhibit increased versatility. The AMDFs of the present embodiments can include anisotropic lattice structures to expose electromagnetic waves a lower Dk when traversing the AMDF in a specific direction. The anisotropic AMDFs can be planar and/or conformal, and include a plurality of skins having a plurality of columns therebetween.

Abstract: Superstrates made from a base low-loss dielectric material(s) that can be used as low-loss antenna matching superstrates are provided. The superstrates can be latticed wide-angle impedance matching (WAIM) superstrate, which can minimize, or even eliminate the negative impact of any reflections that may occur during steering antennas. The superstrates can mimic other structures to exhibit behaviors similar to those structures. For example, the values of the dielectric constant can be varied by way of optimization of the geometry of the superstrate, which can allow formation of superstrates having non-uniform, as well as uniform, dielectric constants across a body thereof. In some embodiments, the superstrates can be arcuate to allow for use in lenses and/or radomes paired with radio frequency (RF) antennas.

Abstract: The mudflap system with universal adapter is centered on a bracket. The bracket includes optional inserts that can be added or removed to change the size of the bracket recess. By changing the size of the bracket recess, a single bracket may be used on multiple sizes of ball mount—the ball mount being portion of the vehicle's hitch system that generally protrudes from the receiver, accepting trailer coupler to connect to the trailer. The bracket includes tab recesses interface with tabs present on the inserts. The tabs and associated recesses act to align the inserts with the bracket and prevent over-insertion, thereby preventing the inserts from falling out during assembly. After placement of an insert within the bracket, threaded fasteners are used to clamp the bracket to the ball mount and to hold the inserts in position.

Abstract: The mudflap system with universal adapter is centered on a bracket. The bracket includes optional inserts that can be added or removed to change the size of the bracket recess. By changing the size of the bracket recess, a single bracket may be used on multiple sizes of ball mount—the ball mount being portion of the vehicle's hitch system that generally protrudes from the receiver, accepting trailer coupler to connect to the trailer. The bracket includes tab recesses interface with tabs present on the inserts. The tabs and associated recesses act to align the inserts with the bracket and prevent over-insertion, thereby preventing the inserts from falling out during assembly. After placement of an insert within the bracket, threaded fasteners are used to clamp the bracket to the ball mount and to hold the inserts in position.

Abstract: A fault diagnostic method for a heat exchanger in which ambient air temperature and heat exchanger temperature are measured. Also disclosed is the use of a single temperature sensor, in combination with a microprocessor, to measure temperature emitted from a heat exchanger and ambient air temperature surrounding the heat exchanger.

Abstract: Resveratrol can be used to treat or inhibit the onset of many diseases that are related to the aging process, but large doses are required. The present invention provides concentrated liquid formulations of resveratrol, typically having a resveratrol concentration of at least 10% by weight. These formulations improve patient compliance because the patient need not consume such a large volume of a resveratrol formulation.

Abstract: Sirtuin modulators, particularly sirtuin activators, are useful in treating vision impairment. In general, the sirtuin modulators inhibit the progression of vision impairment resulting from various eye disorders. The invention also includes pharmaceutically acceptable formulations of sirtuin modulators, particular ophthalmically acceptable formulations.

Abstract: For use on a wheelchair, a wheel assembly has a change speed gear mounted in the wheel hub. A handwheel is connected to the input of the speed gear and the output of the speed gear is connected to the hub. A free wheel device can be provided between the handwheel and the speed gear. To prevent unwanted backward movement, a clutch assembly can be provided. The clutch assembly engages with a member attached to the hub and permits forward movement only. The clutch can be disengageable. The footrests of the wheelchair can be pivoted up and down by a hand lever mounted on the wheelchair and connected, as by a cable, to a lever on the footrest. A hand lever is provided on each side of the wheelchair.