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  • 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:
    Representative Dr. Bruce D'Ambrosio for serving on my graduate committee, reviewing the manuscript, and giving

  • High-performance low-power microprocessor circuits

    Creator:
    Hsu, Steven K.
    Abstract:
    This thesis will discuss two critical components of a digital system -- domino logic styles and flip-flops. In today's microprocessors, both domino logic and flip-flops are essential to high-performance and low-power design. Two new domino logic styles are presented and analyzed, Double Edge Triggered (DET) and Double Data Rate (DDR)...
    Resource Type:
    Masters Thesis
    Full Text:
    included Dr. John F. Wager and Dr. Bruce D'Ambrosio for their time. Lastly, I would like to thank my

  • 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

  • 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:
    Metro. The members of my graduate committee, Bruce Dugger, Sam Chan, and Lisa Ganio, all

  • 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

  • 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