Abstract: A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.

Abstract: A long-range active thermal imaging system includes an electromagnetic radiation source in the range of from about 10 GHz to about 500 GHz; a beam controller for receiving and retransmitting the electromagnetic radiation in a desired direction toward and onto a surface of a target, thereby heating the target and producing an infrared radiation emission from the target surface; and an infrared imager, e.g. an infrared camera coupled to a processor and display, for receiving the target's infrared radiation emission and generating a thermal image of the target. The radiation source may be selected such that the radiation penetrates into the target to provide a thermal signature, e.g. from subsurface features or objects. The thermal signature exhibits rapid changes that can be monitored in real time. This may allow surface or subsurface details or objects to be detected that would not otherwise be apparent.

Abstract: A process for operating a combustion burner employing a combustion mixture of a carbonaceous fuel, hydrogen and a molecular oxygen-containing gas and at least one solid combustion catalyst is disclosed.

Abstract: A lighting system for an interior of a building includes a device for collecting and converting sunlight into concentrated light consisting of a stack of fluorescent sheets. The collecting device is optically coupled, preferably by way of an optical joint to a channelling member such as an optical cable, so that the concentrated light passes to the channelling member and is channelled to a light emitting fitting for the interior of the building. The channelling members are formed such that their cross-sectional shape changes from the cross-section of the collecting device to the cross-section of the channelling members with an approximately constant cross-sectional area being maintained throughout the change of cross-sectional shape, whereby the coupling device is an optical joint created by a medium having a refractive index close to that of the collecting device and channelling members.