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Filtering by: Creator Hummel, Matthias E. Remove constraint Creator: Hummel, Matthias E. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Physical vapor deposition of novel thin-film solar absorbers

    Creator:
    Waters, Benjamin E.
    Abstract:
    Current leading thin-film solar cell technologies, i.e., cadmium telluride (CdTe) and copper indium gallium diselenide (CIGS), employ elements which are either toxic (Cd), or rare and/or expensive (In, Te, Ga, and Cd). The aim of this thesis is to investigate new, abundant, non-toxic p-type semiconductors for potential solar absorber application....
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Benjamin E. Waters for the

  • Analysis and modeling of lossy planar optical waveguides and application to silicon-based structures

    Creator:
    Remley, Catherine A.
    Abstract:
    This work is concerned with the modeling and analysis of lossy planar dielectric optical waveguides. Loss mechanisms which affect propagation characteristics are reviewed, and various representations of the propagation constant in the lossy case are defined. Waveguide structures which are susceptable to absorption and/or to leakage loss, in particular silicon-based...
    Resource Type:
    Masters Thesis
    Full Text:
    . Tripathi, John F. Wager, and Mary E. Flahive, for their time and suggestions. Thanks also to Dr. Satish

  • A Novel CCRW Receiver with Variable Width Window for Mitigating Multipath and Ambiguity in GNSS Positioning

    Creator:
    Alhussein, Fahad
    Abstract:
    This work presents a novel CCRW receiver that utilizes a window of variable width, for e˙ectively mitigating multipath and ambiguity in both civil and military positioning applica-tions using Global Navigation Satellite Systems (GNSS). This CCRW receiver incorporates a single stroboscopic window, whose width is iteratively reduced until the e˙ect of...
    Resource Type:
    Dissertation
    Full Text:
    procedure, thus defining two types of receivers, namely early-late (E-L) [3], and code correlation

  • Atomic solid state energy scale applied to novel thin-film solar absorbers

    Creator:
    Pelatt, Brian D.
    Abstract:
    The atomic solid state energy (SSE) scale is introduced as a tool for inorganic materials design. The SSE scale is obtained by assessing an average electron affinity (EA) (for a cation) or an average ionization potential (IP) (for an anion) for each atom using data from compounds having that specific...
    Resource Type:
    Dissertation
    Full Text:
    energy E f due to an incoming photon of energy ~ω. The minimum energy difference between the two bands

  • Advanced time-varying approaches for modeling the multipath channel in wireless network

    Creator:
    Aljerme, Abdelkader A.
    Abstract:
    This dissertation proposes the use of advanced time-varying approaches for modeling the dynamics of the multipath channel in wireless communication networks. These advanced time-varying approaches include linear Kalman innovation models in observable block companion form, and neural network-based models. The e˙ectiveness of these type of models is evaluated through three...
    Resource Type:
    Dissertation
    Full Text:
    ) = α0e− jθ0δ (τ− τ0)+ N ∑ n=1 αne− jθnδ (τ− τn) (2.2) where α0, θ0 and τ0 are the power, carrier

  • Network monitoring with focus on HTTP

    Creator:
    Schmid, Andreas
    Abstract:
    Since its introduction in the early 1990s, the quick growth of the World Wide Web (WWW) traffic raises the question of whether past Local Area Network (LAN) packet traces still reflect the current situation or whether they have become obsolete. For this thesis, several LAN packet traces were obtained by...
    Resource Type:
    Masters Thesis

  • Properties of semi-insulating In₀. ₅₃Ga₀. ₄₇As epitaxial layers and photoconductive detectors

    Creator:
    Rao, Mulpuri Venkata
    Resource Type:
    Dissertation
    Full Text:
    June 1985 APPROVED: Redacted for privacy Associate Professor of Electrical and Compu e Engineering

  • Zonal Resource Adequacy for Voltage Control

    Creator:
    Boller, Michael D.
    Abstract:
    In a power system, operators maintain voltage stability through adequate reactive reserves. Maintaining and accessing an efficient allocation of reactive reserves is prohibitively complex because of reactive line losses, the variety of reactive resources, and either limited or variable reactive outputs from renewable sources. By clustering the system into smaller...
    Resource Type:
    Masters Thesis

  • Hybrid electric vehicle converter harmonics

    Creator:
    Bowers, Waylon T.
    Abstract:
    Hybrid electric vehicles (HEV’s) are a very important part of today’s transportation system as they are bridging the gap between fully electric vehicles and conventional internal combustion vehicles (ICV’s). They have much higher efficiencies and lower emissions than ICV’s, while still having the ability to travel long range and refuel...
    Resource Type:
    Masters Thesis
    Full Text:
    . 12. p( 4 4 E P 3 S ,ii ch 5 p 51 S 3 x C p A r G al in g S iQ Ia Is p 4

  • Deletions and Insertions of the Symbol 0 and Asymmetric/Unidirectional Error Control Codes for the L₁ Metric

    Creator:
    Alqwaifly, Nawaf
    Abstract:
    This work gives some theory and efficient design of binary block codes capable of controlling the deletions of the symbol “0” (referred to as 0-deletions) and/or the insertions of the symbol “0” (referred to as 0-insertions). This problem of controlling 0-deletions and/or 0-insertions (referred to as symmetric 0-errors) is shown...
    Resource Type:
    Dissertation
    Full Text:
    distance defined in the graph (N,E) where the set of nodes N def= ZZ∗2 and the set of edges E def = { (X