Moogega Cooper

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Mechanisms of cell-cell recognition and structural changes of growth cones (g.c.) and target membranes during contact formation are poorly understood. To examine these issues, we obtained a high magnification, real-time record of stable contact formation in cultured cells from the hippocampal CA1 area in the newborn rat. We used differential interference(More)
Response We used the polytropic approximation P ∼ ρ γ to model the isentrope in the detonation products in our original study 1 in order to simplify the computation and develop analytic formulas for the impulse. Radulescu and Hanson (R&H) point out that for the stoichiometric ethylene-oxygen case, an equilibrium approximation to the isentrope is more(More)
As pulse detonation engine development matures, it becomes increasingly important to consider how practical details such as the implementation of valves and nozzles will affect performance. Inlet valve timing and valveless inlet designs may result in flow of products back upstream and, consequently, reduction in impulse over the ideal case. Although proper(More)
Figure 4. Block diagram of experimental setup Figure 5. Ionization probe circuit Figure 6. Mechanical drawing of front wall end cap (units in inches) Figure 7. Ballistic pendulum arrangement for the initial and fully deflected positions Figure 8. Components of blockage plate obstacles (units in inches) Figure 9. Blockage plate obstacle configuration Figure(More)
Errata In the original evaluation of our analytical model for the single-cycle impulse of a pulse detonation tube, 1 we approximated the detonation product isentrope as having a frozen composition with a corresponding polytropic exponent γ f. As discussed in the accompanying comment by Radulescu and Hanson and our response, for many situations, it is more(More)
Systems designed to monitor airborne radionuclides released from underground nuclear explosions detected radioactive fallout across the northern hemisphere resulting from the Fukushima Dai-ichi Nuclear Power Plant accident in March 2011. Sampling data from multiple International Modeling System locations are combined with atmospheric transport modeling to(More)
Investigating the order-disorder phase transition in Nd2-XyxZr2O7 via diffraction and spectroscopy', backscatter diffraction characterization of plasma immersion ion implantation effects in stainless steel',Effect of double ion implantation and irradiation by Ar and He ions on nano-indentation hardness of metallic alloys',
Fluorescence imaging techniques can accurately monitor a variety of gas-phase parameters including species concentrations, temperature and velocity. However, in using such techniques in free-piston shock tunnels, a number of problems are encountered. For example, emission from metallic impurities present in the flow imposes a severe limitation, especially(More)
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