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  • Development of a passive micro-ball valve

    Creator:
    Wangwatcharakul, Worawut
    Abstract:
    A novel design, material, and fabrication method are presented to fabricate a passive micro-ball valve. Microvalves are critical components in microflow control devices used to control the fluid flows in microchannels. These microflow control devices can be integrated with microsensors to form micro analysis systems. Glass/silicon-based fabrication is complicated and...
    Resource Type:
    Masters Thesis
    Full Text:
    of a Passive Micro-ball Valve. Abstract approved. Brian K. Paul A novel design, material, and

  • A tunable duty-cycle-controlled switched-R-MOSFET-C CMOS filter for low-voltage and high-linearity applications

    Creator:
    Xiao, Ying
    Abstract:
    A novel switched-R-MOSFET-C input branch is proposed for low-voltage and high-linearity applications. The tunability is achieved by varying the clock duty cycle using an automatic tuning circuit. This tuning method does not involve a change in gate voltage, and is therefore particularly suitable for low-voltage applications. The advantages of the...
    Resource Type:
    Masters Thesis
    Full Text:
    . The advantages of the proposed method are illustrated with the design and simulation of a high-Q

  • System behavior of three-dimensional wood truss assemblies

    Creator:
    Limkatanyoo, Pranueng
    Abstract:
    The objective of this research is to use a three-dimensional (3D) analysis method to include 'system effects' directly in the design of light-frame roof truss assemblies. The goal of this study is to develop an improved and practical method to determine the structural performance of 3D roof truss assemblies used...
    Resource Type:
    Masters Thesis

  • Design and analysis of planar and multilevel inductors

    Creator:
    Phillips, Michael D. (Michael Donovan)
    Abstract:
    Industry today is pushing personal portable handheld communication de- vices, from cellular telephones to personal navigation systems, and society is embracing the push. The goal is to make compact multi-functional handheld products that can transfer information to those around us through high bandwidth mobile communications. These modules rely heavily on...
    Resource Type:
    Masters Thesis
    Full Text:
    Master of Science in Electrical and Computer Engineering presented on May 26, 2005. Title: Design and

  • New configurations for RF/microwave bandstop and lowpass filters

    Creator:
    Peddibhotla, Harish V.
    Abstract:
    This thesis presents new, compact configurations for RF/microwave bandstop and lowpass filters for embedded passive applications. A simple design methodology is presented for designing the folded-transmission line filters on a microstrip platform. Unlike the conventional stub-loaded filter designs, the proposed folded-line filters will have practical dimensions for a wide range...
    Resource Type:
    Masters Thesis
    Full Text:
    /microwave bandstop and lowpass filters for embedded passive applications. A simple design methodology is

  • Fabrication and characterization of thin-film electromagnetic coils and heaters for microchannel applications

    Creator:
    Dehuff, Nicole L.
    Abstract:
    The focus of this thesis involves developing general fabrication processes relevant to the manufacture of two new devices for the Microscale technology Energy and Chemical Systems (MECS) program at Oregon State University. The two MECS devices developed, capture dots and transparent thin-film heaters (TTFHs), require unique process development for successful...
    Resource Type:
    Masters Thesis
    Full Text:
    microelectronics to the design and construction of integrated electromechanical systems." [5] 2.1 Devices

  • Autonomous helicopter systems: design and implementation solutions

    Creator:
    Nguyen, John
    Abstract:
    Creating intelligent robotics is at the cutting edge of technology. Unmanned aerial vehicles (UAV) are of particular interest for surveillance applications. UAVs have the potential to provide quick and cheap aerial data that would be difficult to obtain by conventional means. UAVs also have the ability to navigate without being...
    Resource Type:
    Honors College Thesis
    Full Text:
    project provide designers with insight into the construction and design of such vehicles. 3 2

  • Design techniques for clocking high performance signaling systems

    Creator:
    Hanumolu, Pavan Kumar
    Abstract:
    Scaling of CMOS technology has progressed relentlessly for the past several decades. In order for this unprecedented scaling to benefit the performance of large digital systems, the communication bandwidth between integrated circuits (ICs) must scale accordingly. However, interconnect technology does not scale as aggressively, making communication between chips the major...
    Resource Type:
    Dissertation
    Full Text:
    being 3000 miles away and generously shared his vast knowledge on links design. Gu masterfully

  • Simultaneous beta/gamma digital spectroscopy

    Creator:
    Farsoni, Abdollah T.
    Abstract:
    A state-of-the-art radiation detection system for simultaneous spectroscopy of beta-particles and gamma-rays has been developed. The system utilizes a triplelayer phoswich detector and a customized Digital Pulse Processor (DPP) built in our laboratory. The DPP board was designed to digitally capture the analog signal pulses and, following several digital preprocessing...
    Resource Type:
    Dissertation
    Full Text:
    ……………………………………. 34 3.1.1 Design and Materials……………………………………….. 34 3.1.2 MCNP Study and Simulations

  • Design of a 1.8-V 14-bit [delta] - [sigma] A/D converter with 8X oversampling and 4 MHz Nyquist output rate

    Creator:
    Jiang, Ruoxin
    Abstract:
    In this dissertation, a new Δ∑ A/D converter is presented that is ideally suited for communication applications. It is based on a single-loop single-stage structure, which can realize a high maximum out-of-band quantization noise gain while maintaining stable operation and thus achieve 14-bit resolution at 8 times oversampling. A fifth-order...
    Resource Type:
    Dissertation
    Full Text:
    , 2001. Title: Design of a 1.8-V 14-bit L I A/D Converter with 8X Oversampling and 4 MHz Nyquist Output