Abstract: In one aspect, build materials and support materials for use with a 3D printer are described herein. Such materials include a phosphor component in combination with other components. In some embodiments, the phosphor component of a build material or support material is present in the material in an amount of 0.001-0.5 wt. % and has a peak photoluminescence (PL) emission wavelength of 430-750 nm and a photoluminescence quantum yield (QY) of 0.10-1.

Abstract: A vestibular motion table is disclosed for providing a reciprocating, horizontal motion to a user. The table comprises a base and a table top suitable for the user to lie upon. A plurality of support legs is pivotally connected to the base at one of end and is pivotally connected to the table top at the other end. The table includes an electric gear motor having an eccentric mounted thereon. A power transmission shaft is connected at one end to the eccentric while the other end is connected to the table top. A controller in electrical communication with the gear motor and a source of electrical power controls the speed of the motion.

Abstract: A universal check valve assembly is disclosed which fits within an exhaust conduit having any one of a range of diameters and without any modification to the structure of the conduit. The assembly includes an adjustable diameter support hoop and a circular, single piece valve structure of variable diameter which can removably engage the support hoop. The support hoop has a downwardly extending, outwardly flaring skirt portion which resiliently engages the inner wall of an exhaust conduit.