Delivery of short hairpin RNA in the neotropical brown stink bug, Euschistus heros, using a composite nanomaterial
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99 GENERAL AND MISCELLANEOUS↗
Engineering topics
Donohue, K.
Publications and source records attributed to Donohue, K..
Studies of non-equilibrium radiation signatures behind hypersonic shock fronts
A new electric arc-driven shock tube facility is described. The radiative diagnostics include two optical multichannel analyzers, which can provide spectrally resolved snapshots of ultraviolet and visible shock fluorescence in both nonequilibrium and equilibrium regions behind the incident shock, as well as a bank of six filtered radiometers which allow temporal monitoring of key spectral features. Preliminary measurements of the radiative signatures behind low pressure shocks in air and nitrogen are presented for the shock velocity range of 6 to 12 km/s.
Donohue, K.↗
Aerothermodynamic radiation studies
We have built and made operational a 6 in. electric arc driven shock tube which alloys us to study the non-equilibrium radiation and kinetics of low pressure (0.1 to 1 torr) gases processed by 6 to 12 km/s shock waves. The diagnostic system allows simultaneous monitoring of shock radiation temporal histories by a bank of up to six radiometers, and spectral histories with two optical multi-channel analyzers. A data set of eight shots was assembled, comprising shocks in N2 and air at pressures between 0.1 and 1 torr and velocities of 6 to 12 km/s. Spectrally resolved data was taken in both the non-equilibrium and equilibrium shock regions on all shots. The present data appear to be the first spectrally resolved shock radiation measurements in N2 performed at 12 km/s. The data base was partially analyzed with salient features identified.
Donohue, K.↗