Abstract: The present invention discloses a package tracking system and method in which a sender and a recipient of a package are provided e-mail messages including information from a sender or carrier web page and the package location status. The present invention uses a network-based service for transferring tracking information from a package carrier and the sender to the requesting party. A package tracking request, including a tracking number and an e-mail address is submitted to a data center. This tracking request is stored in a set of queues, separated by a specific carrier identification number into tracking segment requests, and then sent to the tracking website of the selected carrier in accordance with the capabilities of each carrier's website. The carrier package tracking results from the website and the information from the sender or carrier website are gathered and stored at the database.

Abstract: A process for producing a crack-free, laser nitride-hardened layer on a titanium substrate, the process including preheating the substrate, melting a small area of substrate with a laser, and shrouding the melted area with a gas mixture having a maximum critical amount of nitrogen not greater than 85%. A crack-free pump shaft so hardened to Rockwell 52 C is produced.

Abstract: A process for producing a crack-free, laser nitride-hardened layer on a titanium substrate, the process including preheating the substrate, melting a small area of substrate with a laser, and shrouding the melted area with a gas mixture having a maximum critical amount of nitrogen not greater than 85%. A crack-free pump shaft so hardened to Rockwell 52 C is produced.

Abstract: A low-profile full aperture traveling wave monopulse antenna assembly including a circular faceplate having a plurality of parallel rows of radiating apertures formed therethrough, a circular backplate having a pair of feed openings each extending across the backplate on opposite sides of and parallel to a centrally located chord perpendicular in orientation to the rows of radiating apertures, a circular backplate mounted between and spaced apart from the faceplate and the backplate by a plurality of walls forming a plurality of parallel waveguide channels therein, a pair of feed waveguides each mounted adjacent the backplate above a different feed opening and each electromagnetically coupled to opposite ends of the waveguide channels, and a monopulse comparator network mounted adjacent the backplate and coupled to the pair of feed waveguides.