Abstract: In various embodiments, the present inventions provide a rubber composite having an abrasion resistance better than about 125 mm3 under DIN 53516 and comprising a natural rubber, between about 15 to about 25 parts per hundred rubber (PHR) of a butadiene, between about 20 to about 40 PHR of a silica; and between about 0.4 to about 4 PHR of an organosilane polysulfur cross-linking agent. Also provided in various embodiments are multiply rubber materials having a first ply of the above composite and a second thinner ply of a styrene-butadiene rubber.

Abstract: Described is a self-contained, small, lightweight, power-efficient and radiation-shielded module that includes a miniature vacuum X-ray tube emitting X-rays of a controlled intensity and defined spectrum. Feedback control circuits are used to monitor and maintain the beam current and voltage. The X-ray tube, high-voltage power supply, and the resonant converter are encapsulated in a solid high-voltage insulating material. The module can be configured into complex geometries and can be powered by commercially available small, compact, low-voltage batteries.

Abstract: The present invention provides a novel cross-reactive sensor system utilizing cross-reactive recognition elements. In the inventive system, each of said one or more cross-reactive recognition elements is capable of interacting with more than one species of liquid analyte of interest, whereby each of said one or more cross-reactive recognition elements reacts in a different manner with each of said one or more species of liquid analytes of interest to produce a detectable agent of each analyte of interest, whereby said detectable agent is analyzed and the information is processed for data acquisition and interpretation.