Abstract: A portable safety barricade meeting known safety standards and having a plurality of horizontally attached straps and vertically attached straps. The horizontal straps are preferably attached to support poles or other structural members and then ratcheted to a desired tension. The vertical straps are preferably attached between and in a perpendicular fashion to the horizontal straps. Preferably, a ratcheting device is attached at one end of the horizontal straps to allow tensioning of the barricade. The barricade may be attached to poles which can be attached to a grating or to another surface as desired to maintain a safety barricade. The barricade is easy to assemble, is portable and meets safety requirements of offshore rigs, as well as construction sites in order to keep machinery and personnel out of harms way.

Abstract: An apparatus for providing source information to a positron emission tomography (PET) scanner upon demand, and a method for using same. An intelligent coincidence transmission source with multiple point sources includes data in a storage device. The data includes the date of manufacture, the activity level at that date, and other information. The data is provided to the scanner's computer system upon demand. The apparatus includes flexible means for maintaining electrical communication between the data storage device and the scanner.

Abstract: Method and apparatus for detecting tunnels, voids or other anomalies bene an area of the earth's surface wherein an oscillator couples a current into two conductors laid parallel to each other to generate two magnetic fields in the earth beneath the area. The magnetic field is measured along a line midway between the two horizontal conductors to detect for an increase in the measured field which is an indication of the presence of an anomaly.

Abstract: A continuous slot antenna having a rectangular waveguide whose broad dimeon varies in proportion to the attenuation for providing improved radiation patterns.

Abstract: Improved method and apparatus for detecting anomalies beneath an area of earth's surface wherein an oscillator couples a current into two conductors laid parallel to each other to generate two magnetic fields in the earth beneath the area. The magnetic field is measured along a line midway between the two horizontal conductors to detect for an increase in the measured field which is an indication of the presence of an anomaly.