Abstract: A carbon friction material, preferably a woven carbon friction material, wherein a binder such as an epoxy or phenolic resin is used to strengthen and impart rigidity to the friction material. The friction material has a graded concentration of the binder such that the friction surface may have substantially no binder. A reinforcing substrate such as a fiberglass backing may also be present. The coefficient of friction at the friction surface may be further increased by, for example, shaving the surface such that a plurality of fibers become oriented in a direction perpendicular to the friction surface.

Abstract: The present invention provides arthropod monitoring or baiting stations that provide a simple and readily visible indication of arthropod activity within a station housing. The visible indication is accomplished through the use of a monitoring member that preferably comprises a colored material that visibly contrasts with the color of the interior of the housing, such that the color contrast between the monitor member and the interior of the housing aids in visually detecting the presence of arthropods within the housing.

Abstract: An e-learning game generator accesses a learning object repository, a learning object assessment object repository, and a video repository. The video repository includes scenes that are suggestive of success and failure of the student in answering questions from the learning object assessment objects. When a student answers a question correctly, the game generator selects a positive scene from the video repository and presents it to the student; when the student answers a question incorrectly, the game generator selects a negative scene and presents it to the student.

Abstract: A macerator including two stacks of contra-rotating interleaved cutter discs having teeth is provided with two side rails closely adjacent to the periphery of the stacks of cutters. Each side rail has a plurality of angled ribs with slots therebetween. The ribs and slots are angled at an acute angle to the planes of the cutters so that each rib is passed by two or more cutters thereby to ensure maceration of any solids passing with the liquid in the slots.

Abstract: A cutter for a macerator of a type having first and second parallel contra-rotating shafts, each having a plurality of alternate cutters and spacers at the same axial thickness, the cutters of the first shaft being interleaved with those of the second shaft. The cutter of the invention has generally circumferentially spaced teeth 14, 16, 18, 22, each tooth having a front cutting face 26, 28, 30, 32, 34, and an inclined, generally ramp shaped rear face 46, 48, 50, 52, 54, which may be serrated. One tooth 14 has a "square" front face 26 which extends substantially parallel to the axis of the cutter while the front faces of the remaining teeth are inclined, preferably alternately, to the axis of the cutter.