L H Sentman

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A chemical oxygen-iodine laser (COIL), the VertiCOIL device, was transferred from the Air Force Research Laboratory (AFRL) to the University of Illinois at Urbana-Champaign (UIUC) and made operational. The performance of the high-power VertiCOIL laser was measured with nitrogen diluent, New nozzle designs were investigated and implemented to optimize(More)
The simplified chemical fluid dynamic model employed by Sentman in his study of rotational nonequilibrium in cw chemical lasers has been coupled to a 1-D physical optics model of the cavity. Calculations have been performed for both rotational equilibrium and nonequilibrium cases for an unstable resonator with 50% geometric outcoupling. For the rotational(More)
The chemical kinetics characterizing a DF-CO(2) transfer chemical laser were verified by utilizing a subsonic laser system which, for most conditions, could be approximated as premixed and at constant pressure. In such a laser, fluid dynamic effects are minimized, and the role of the kinetics model in characterizing the DF-CO(2) system is emphasized.(More)
NK cells are large granular lymphocytes that do not rearrange TCR or Ig genes (1) . They kill susceptible tumor or virus-infected cells in vitro without any MHC restriction (2, 3), regulate antibody synthesis (4, 5), and mediate rejection ofbone marrow cells (BMC)' in irradiated mice (6, 7) . Whether these functions are performed by all NK cells or by(More)
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