Index Catalog // ScholarsArchive@OSU

Modelling of on-chip spiral inductors for silicon RFICs

Creator:: Melendy, Daniel
Abstract:: In high-frequency circuit design, performance is often limited by the quality of the passive components available for a particular process. Specifically, spiral inductors can be a major bottle-neck for Voltage-Controlled Oscillators (VCOs), Low-Noise Amplifiers (LNAs), mixers, etc. For designers to correctly optimize a circuit using a spiral inductor, several frequency-domain...
Resource Type:: Masters Thesis
Full Text:: , 3-D simulators such as Ansoft's HFSS 10 [26] which can provide very accurate results using the

Seasonal movement, residency, and migration patterns of Wilson's Snipe (Gallinago delicata) across the annual cycle in the Willamette Valley of Oregon.

Creator:: Cline, Brittany B.
Abstract:: Studies of avian movement ecology afford essential insights regarding species' life histories, population dynamics, habitat and resource requirements, and other ecological relationships. While it is widely recognized that events in different stages of the annual cycle have important implications for processes in avian ecology, evolution, and conservation, challenges associated with...
Resource Type:: Masters Thesis
Full Text:: . DeGhetto and D. Sharps (City of Corvallis), R. Fiori and W. Morrow (ODFW) and E. Rammerstorfer (Oregon

An examination of climate and land-use change as drivers of population dynamics in breeding birds

Creator:: Kim, Hankyu
Abstract:: Anthropogenic land-cover change and climate change are the major drivers of the steep loss of avian biodiversity in past decades. Loss of avian biodiversity is predicted to result in the reduction of ecosystem services and ecological functions. Identifying avian population changes and the drivers of these trajectories is essential for...
Resource Type:: Dissertation
Full Text:: skills and knowledge as a scientist. My committee members, Jim Rivers, Sarah Frey and Bruce Dugger

Palynological Perspectives on Younger Dryas to Early Holocene Human Ecology at Paisley Caves, Oregon

Creator:: Saban, Chantel V.
Abstract:: The Younger Dryas climatic event is a global phenomenon associated with a 1,000 year return to glacial conditions during the late Pleistocene period between 12,800 and 11,500 cal BP. Because of its significant effects on paleoenvironmental conditions in some parts of the world, archaeologists commonly seek to assess whether the...
Resource Type:: Masters Thesis
Full Text:: broader ways of approaching research problems, and to Bruce Weber from the College of Agricultural

Patterns in responses of an amphibian assemblage to wetland restoration

Creator:: Rowe, Jennifer C.
Abstract:: Wetland restoration success in attaining wildlife conservation goals can be confounded by the presence of multiple biological invaders. Wetland management activities typically target invasive plants, but bottom-up responses of higher trophic levels in novel communities are difficult to predict. We surveyed plant and amphibian assemblages at 26 sites enrolled in...
Resource Type:: Masters Thesis
Full Text:: assemblages at 26 sites enrolled in the Wetlands Reserve Program (WRP) in the Willamette Valley, Oregon to

Breeding and foraging ecology of Caspian terns nesting on artificial islands in the Upper Klamath Basin, California

Creator:: Patterson, Allison (Allison Glider)
Abstract:: Availability of suitable nesting habitat that is free of nest predators and provides access to adequate prey resources within commuting distance is a major factor limiting seabird populations. Caspian terns (Hydroprogne caspia) in western North America have shifted their breeding habitat from naturally occurring habitats in interior wetlands, lakes, and...
Resource Type:: Masters Thesis
Full Text:: the Upper Klamath Basin, California Abstract approved: Daniel D. Roby Availability of

High-performance delta-sigma analog-to-digital converters

Creator:: da Silva, Jose Barreiro
Abstract:: Multi-stage delta-sigma (ΔΣ) architectures, commonly known as MASH, are the preferred choice for analog-to-digital converters (ADCs) used in broadband communication applications, where high-resolution (above 14 bits) and high-bandwidth (several MHz) performances are required. Current state-of-the-art designs are capable of as much as 5-MS/s output data rates with 90-dB SNR. However,...
Resource Type:: Dissertation
Full Text:: thesis describes the problems of extending bandwidth without losing accu- racy in z A/D converters, and

Patterns of benthic macroinvertebrate communities and habitat associations in temperate continental shelf waters of the Pacific Northwest

Creator:: Lee, Timothy Seung-chul
Abstract:: Macroinvertebrates constitute the backbone of megafaunal communities in benthic ecosystems around the globe. Many macroinvertebrates have vital roles in benthic ecosystems, ranging from enhancing habitat complexity to providing staple food sources for other organisms. Regardless of how familiar macroinvertebrates are to the general public, very few studies have attempted to...
Resource Type:: Masters Thesis
Full Text:: completion of this project. I also thank Bruce Menge and Sally Hacker of Department of Zoology for their

Modeling and application of multispectral oceanic sun glint observations

Creator:: Luderer, Gunnar
Abstract:: The atmospheric radiative transfer model MOCARAT was developed and is presented in this thesis. MOCARAT employs a Monte Carlo Technique for the accurate modeling of band radiances and reflectances in an atmospheric system with a ruffled ocean surface as a lower boundary. The atmospheric radiative transfer is modeled with consideration...
Resource Type:: Masters Thesis
Full Text:: would also like to thank Profs. Richard J. Vong, Murray D. Levine, and Bruce P. McCune for serving on

Caspian tern (Hydroprogne caspia) foraging ecology and predation on juvenile salmonids in San Francisco Bay, California

Creator:: Adrean, Lindsay J.
Abstract:: Brooks Island, located in central San Francisco Bay, California, currently supports the largest breeding colony of Caspian terns (Hydroprogne caspia) in the Bay Area, and is one of several proposed relocation sites for some Caspian terns from the world's largest colony in the Columbia River estuary of Oregon. Juvenile salmonids...
Resource Type:: Masters Thesis
Full Text:: Juvenile Salmonids in San Francisco Bay, California. Abstract approved: Daniel D. Roby

ScholarsArchive@OSU

Modelling of on-chip spiral inductors for silicon RFICs

Seasonal movement, residency, and migration patterns of Wilson's Snipe (Gallinago delicata) across the annual cycle in the Willamette Valley of Oregon.

An examination of climate and land-use change as drivers of population dynamics in breeding birds

Palynological Perspectives on Younger Dryas to Early Holocene Human Ecology at Paisley Caves, Oregon

Patterns in responses of an amphibian assemblage to wetland restoration

Breeding and foraging ecology of Caspian terns nesting on artificial islands in the Upper Klamath Basin, California

High-performance delta-sigma analog-to-digital converters

Patterns of benthic macroinvertebrate communities and habitat associations in temperate continental shelf waters of the Pacific Northwest

Modeling and application of multispectral oceanic sun glint observations

Caspian tern (Hydroprogne caspia) foraging ecology and predation on juvenile salmonids in San Francisco Bay, California

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