Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"WPE"”.
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Ecosystem Transformation Across a Changing Social Landscape: Landowner Perceptions and Responses to Woody Plant Encroachment
… A global phenomenon, woody plant encroachment (WPE) has been particularly problematic in the Southern Great Plains of the United States where the actions of private landowners are integral to sustaining grasslands. Increased diversity in landowners’ motivations for owning land have shifted the …
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Managing herbivory over space and time: consequences for vegetation and cattle responses in African rangelands
… characteristic of woody plant encroachment (WPE) although this has not been tested at regional sales. Using three decades of satellite imagery, I found that woody plant cover has increased by 8% over sub-Saharan Africa and a diversity of drivers, other than CO2, were able to explain 78% of …
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An Examination of Puccinia Mariae-Wilsoni Infection of Claytonia Virginica
… and control and between the wind-pollinator (WPE) exclusion treatment and the PE and SSE treatments. There was an overall increase in the mean infection percentage from 2008 to 2009. In 2009, an association between flower color and infection was found: Claytonia virginica with higher …
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Simulation of ionospheric plasma heating experiments in the versatile toroidal facility
… produced, weakly magnetized ( wce < wpe) background plasma of either hydrogen or argon. The HF "pump" wave of ionospheric experiments is modeled by 2.45 GHz microwaves, launched perpendicular to the magnetic field and the density gradient of the VTF in the ordinary mode. The peak …
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High-efficiency ultrasound-powered micro-LEDs for optogenetic applications
Gallium nitride (GaN) light-emitting diodes (LEDs) play the most important role in visible light applications, and more than 87% LEDs are used in indoor/outdoor lighting, automotive lighting, etc. Recent advancements in neuroscience and technology opened a new opportunity for LEDs to be used for …