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Filtering by: Date issued sim 2006-09-20 Degree Level Doctoral Commencement Year 2007

Generation and manipulation of THz waves

Creator:

Amer, Naaman

Abstract:

In this thesis I studied several THz components that can be used for potential THz technology. THz waves were generated in nonlinear medium via optical rectification of femtosecond optical pulses. Utilizing the phase matching condition between the optical and THz waves in a ZnTe crystal, single-cycle broad-band THz pulses were...

Resource Type:

Dissertation
Hydrology and geomorphic evolution of basaltic landscapes, High Cascades, Oregon

Creator:

Jefferson, Anne (Anne Jarvis)

Abstract:

The basaltic landscapes of the Oregon High Cascades form a natural laboratory for examining how geologic setting and history influence groundwater flowpaths, streamflow sensitivity to climate, and landscape evolution. In the High Cascades, highly permeable young basaltic lavas form extensive aquifers. These aquifers are the dominant sources of summer streamflow...

Resource Type:

Dissertation
Stability of reporter gene expression and RNAi in transgenic poplars over multiple years in the field under vegetative propagation

Creator:

Li, Jingyi

Abstract:

Stable expression of transgenes is required for commercial uses of genetically engineered trees. To better understand the stability of transgene expression under field conditions, we studied transgene expression and RNA interference (RNAi)-induced transgene suppression in 2,480 transgenic poplars (460 transgene insertion events) over three years. Stability of expression was assessed...

Resource Type:

Dissertation