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(2,2-Bipyridyl)bis(eta5-1,2,3,4,5-pentamethylcyclopentadienyl)Strontium(II)

Description: In the title compound, the Sr-N distances are 2.624 (3) and 2.676 (3) Angstroms. The Sr-centroid distances are 2.571 and 2.561 Angstroms. The N-C-C-N torsion angle in the bipyridine ligand is 2.2 (4){sup o}. Interestingly, the bipyridine ligand is tilted. The angle between the plane defined by Sr1, N1 and N2 and the plane defined by the 12 atoms of the bipyridine ligand is 10.7{sup o}.
Date: July 3, 2008
Creator: Kazhdan, Daniel; Kazhdan, Daniel; Hu, Yung-Jin; Kokai, Akos; Levi, Zerubba & Rozenel, Sergio
Partner: UNT Libraries Government Documents Department

LIGHT EMITTING DlODE TESTING AND ANALYSIS

Description: This report covers the work done to analyze the optical output of a Light Emitting Diode. This diode consists' of a Monsanto MV2 LED chip in an MV50 package. A calculator based instrumentation system is described including programming techniques used to reduce and display data. A Light Instrumentation System with specially designed fiber optic cables is described which gathers data for processing by the calculator based instrumentation system. Future work will include analysis of the RCA 8571 Photomultiplier Tube.
Date: August 1, 1973
Creator: Bowers, J L & Allen, T E
Partner: UNT Libraries Government Documents Department

MASK GENERATION

Description: Four specifications were written to describe requirements of microcircuit photomask generation and quality control. Processes developed were grouped under categories of layout and generation, inspection, serializing, and cleaning, handling, and storage.
Date: September 1, 1973
Creator: Schantz, L E
Partner: UNT Libraries Government Documents Department

COST SAVING THROUGH APPLICATION OF THE INVESTMENT CASTING PROCESS

Description: Bendix now makes four component parts for one precision mechanical assembly from investment castings rather than from wrought-stock machined and welded assemblies--a conversion based directly on the cost saving potential. With proper evaluation of metal components for casting suitability and usage, manufacturers may realize cost saving far beyond their expectations.
Date: August 1, 1976
Creator: Cromwell, W. E.; Tiehen, G. L. & Paul, J. P.
Partner: UNT Libraries Government Documents Department

Carbon Microsphere/Fiber/Polyimide Binder Syntactic Composite

Description: A manufacturing process for syntactic foal billets has been developed, and the progression through the mixing, blending, and molding operations is discussed. With basic requirements for a lightweight, thermally conductive, high strength foam, resolution was attained in a mix of a polyimide resin, carbon microspheres, and graphic fiber.
Date: September 1, 1976
Creator: McWhirter, R. J.; Crow, G. T.; Daniel, R. A. & McIlroy, H. M
Partner: UNT Libraries Government Documents Department

IMPROVED WORK DIRECTORS

Description: Activities aimed at improving work directors which program the instructions required for fabricating printed wiring board assemblies included designing solid-state switching circuitry for improved reliability, evaluating interface cabling techniques, studying visual-aid display-lamp mounting, and packaging innovations for product interface and troubleshooting convenience. The prototype solid-state work director functions satisfactorily. Recommendations for the design and fabrication of future work directors include wire-wrapped terminal construction technique and use of light-emitting diodes to replace conventional incandescent lamps.
Date: November 1, 1973
Creator: Carter, R C
Partner: UNT Libraries Government Documents Department