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  • Usage, Costs, and Benefits of Continuous Integration in Open-Source Projects

    Creator:
    Hilton, Michael, Tunnell, Timothy, Huang, Kai, Marinov, Darko, and Dig, Danny
    Abstract:
    Continuous integration (CI) systems automate the compilation, building, and testing of software. Despite CI rising as a big success story in automated software engineering, it has received almost no attention from the research community. For example, how widely is CI used in practice, and what are some costs and benefits...
    Resource Type:
    Technical Report
    Full Text:
    story in automated software engineering, it has received almost no attention from the research commu

  • Methodology for evaluating mechanical power in small-scale WEC experiments

    Creator:
    Simmons, Asher
    Abstract:
    Wave energy converters (WECs) are a broad class of emerging technology that converts hydrokinetic energy into some other useful form, such as electricity. The last stage in this transformation, the power take-off (PTO) subsystem, is often not experimentally evaluated until half-way through the recommended development process. This delay in evaluation...
    Resource Type:
    Dissertation
    Full Text:
    power. This has led to a situation where there is no consistency across development efforts. The

  • Diversity combining ARQ over the m(> 2)-ary unidirectional channel

    Creator:
    Elarief, Noha
    Abstract:
    In diversity combining automatic repeat request (ARQ), erroneous packets are combined together forming a single, more reliable, packet. In this thesis, we give a diversity combining scheme for the m-ary unidirectional channel. A system using the given scheme with a t-unidirectional error detecting code is able to correct up to...
    Resource Type:
    Masters Thesis
    Full Text:
    ACKNOWLEDGMENTS All praise is due to Allah, Most Gracious, Most Merciful. There is no ease except in that which

  • Performance-improving techniques for wireless systems

    Creator:
    Ozdural, Orhan Can
    Abstract:
    In this thesis, maximum likelihood Doppler frequency estimation and phase noise suppression algorithms for Orthogonal Frequency Division Multiplexing (OFDM) systems are presented. A novel handover decision algorithm for wireless systems, called predictive base station switching (PBSS), is also introduced. The maximum Doppler Frequency is the ratio of the speed of...
    Resource Type:
    Dissertation
    Full Text:
    -maximization (EM) technique; however, no fading model is considered and the phase noise is modeled as the

  • Benchmarking and Programming Practices for the Intel Xeon Phi Coprocessor

    Creator:
    Leslie, William
    Abstract:
    The Intel Xeon Phi is a relative newcomer to the scientific computing scene. In the recent years, GPUs have been used extensively for mathematical simulations. The Xeon Phi is Intel’s response to the use of these cards. Like the GPU, it is highly parallelizable but can be programmed like a...
    Resource Type:
    Capstone Project
    Full Text:
    this card, there was no testing of serial programs since an x86 CPU would work significantly better

  • Dynamic Frequency and Amplitude Estimation for Three-Phase Power Systems

    Creator:
    Wu, Chenchen
    Abstract:
    Several frequency and amplitude estimation algorithms are presented for balanced and unbalanced three-phase power grid systems. All the estimators are dynamic in nature and are implemented in the complex domain by transforming the three-phase power signals using Clarke’s transform. Specifically, we first construct a non-linear dynamic model of the complex...
    Resource Type:
    Masters Thesis
    Full Text:
    0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Time[s] -150 -100 -50 0 50 100 150 200 Am pl itu de [V

  • Finding and Using Chokepoints in Stratagus

    Creator:
    Brewster, Benjamin
    Abstract:
    This paper describes a method for finding areas of interest on a two-dimensional grid map used in the real-time strategy engine Stratagus. The method involves discovering chokepoints where through all simulation agents must pass. Using a set of tunable parameters, a full set of chokepoints are located. The redundant and...
    Resource Type:
    Capstone Project
    Full Text:
    ) AND (Q and M are impassable) If there is no obstruction between Q and M

  • A comparison of box-cox and additive exponential models to estimate the depreciation of farm machinery

    Creator:
    Wu, Jing
    Abstract:
    Farm machinery continues to increase in its importance to the agricultural sector. Depreciation, the decline in value of a durable asset over time, represents one of the largest costs of agricultural production. The general objectives of this study were to update and expand the number of Remaining Value (RV) functions...
    Resource Type:
    Masters Thesis
    Full Text:
    Between Models 49 4.1.4 Tractors with 120-145 HP, without four-wheel drive 50 4.1.4.1 Data Description 50

  • Designing bulk acoustic wave resonators for parametric amplification of spin waves

    Creator:
    Chowdhury, Pratim
    Abstract:
    Spintronics is an emerging field of research dealing with devices that can potentially exploit the additional degree of freedom provided by the electron spin along with or instead of the conventional electronic charge. One of the most promising aspects of spintronics is the potential use of magnetostatic spin waves as...
    Resource Type:
    Masters Thesis
    Full Text:
    . . . . . . . . . . . . . . . . . . . . 40 4.6 Electrical response of HBAR wirebonded to 50 ohm transmission line - no acous­ tic

  • Investigation of the impact of insulator material on the performance of dissimilar electrode metal-insulator-metal diodes

    Creator:
    Alimardani, Nasir, King, Sean W., French, Benjamin L., Tan, Cheng, Lampert, Benjamin P., and Conley, John F., Jr.
    Abstract:
    The performance of thin film metal-insulator-metal (MIM) diodes is investigated for a variety of large and small electron affinity insulators using ultrasmooth amorphous metal as the bottom electrode. Nb2O5, Ta2 O5, ZrO2, HfO2, Al2 O3, and SiO2 amorphous insulators are deposited via atomic layer deposition (ALD). Reflection electron energy loss...
    Resource Type:
    Article
    Full Text:
    deposited via DC magnetron sput- tering using a Zr40Cu35Al15Ni10 metal target with no inten- tional