Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 61 for “"Electronics and electrical engineering"”.
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Electronics first : development of a basic electronics course of study for naval engineers
… its students with a solid foundation of critical engineering, design, construction, and naval architecture concepts. However, within that curriculum, there is less of an emphasis on electrical engineering and electronics as it applies to shipboard systems. The purpose of this project is to outline …
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Practical Considerations for Radar Embedded Communication
This thesis expands on the previous work done in the area of intra-pulse radar embedded communication by examining some of the practical aspects of the waveform design. Communication waveform mismatches between the tag and receiver due to multipath distortion, sampling rate differences and using …
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A Dual Resonant Microstrip Antenna for UHF RFID in the Cold Chain Using Corrugated Fiberboard as a Substrate
… States; about 325,000 require hospitalization; and about 5,000 die. Tracking goods throughout the food supply chain increases the efficiency of recall of tainted goods and thus will help reducing food borne illness. Passive UHF RFID has been widely accepted to be a technology capable of …
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Development of an Electrically Small Vivaldi Antenna: The CReSIS Aerial Vivaldi (CAV-A)
… from the CReSIS Meridian UAV requires a broadband antenna array composed of lightweight, thin, end-fire antenna elements. Toward this goal four Vivaldi antenna designs were simulated, fabricated, and characterized. The final design, dubbed the CReSIS Aerial Vivaldi - Revision A (CAV-A) provides …
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CHARACTERIZATION OF BCl₃, SF₆, and BCl₃/SF₆ PLASMAS USING LANGMUIR PROBE MEASUREMENTS
A Langmuir probe study in BCl3, SF6, and mixtures of BCl3/SF6 capacitively-coupled plasmas is presented. In this study, energy distribution functions, electron temperatures (and average electron energy) and electron, positive ion, and negative ion densities were determined as a function of process …
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ELECTROSTATIC (LANGMUIR) PROBE MEASUREMENTS IN RF DRIVEN He, N2, BCl3, AND BCl3/N2 PLASMAS
… The system was validated in both helium and nitrogen plasmas. Probe measurements showed that as the nitrogen concentration in BCl3/N2 plasmas increased, the average electron energy actually decreased (5.52 eV @ 0% N2, 4.14 eV @ 30% N2, and 3.69 eV @ 60% N2). However, an increase in …
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Nuclear-induced xenon monobromide fluorescence pumping of the atomic iodine laser
Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:35:39Z Item is restricted indefinitely.
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Robust regulation with H(2) or H(infinity) performance
… are studied. Robust regulation against steps and sinusoids is the first. Major results on this classic problem are rederived using only basic state-space ideas.
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Robust and reliable control in discrete time
… the order of the controller, for the centralized and decentralized feedback cases.
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Hardware and compiler support for cache coherence in large-scale shared-memory multiprocessors
Restriction data tranferred 2014-07-01T11:21:19-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission
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Efficient computational techniques for electromagnetic propagation and scattering
Electromagnetic propagation and scattering problems are important in many application areas such as communications, high-speed circuitry, medical imaging, geophysical remote sensing, nondestructive testing, and radar. This thesis develops several new techniques for the efficient computer solution …
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High-purity epitaxial growth and characterization of III-V compound semiconductors
The growth and characterization of epitaxial indium gallium arsenide phosphide compound semiconductor films are described. Methods have been developed to improve the purity of both InP and GaAs and to better assess the crystalline homogeneity of the InGaAsP alloy system.
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Surface decomposition studies of trimethylgallium on silicon(100)
… trimethylgallium/silicon system is fundamentally and industrially important in microelectronics processing. In this study, the decomposition of trimethylgallium (TMG) on silicon (100) was investigated using thermal desorption spectroscopy (TDS), x-ray photoelectron spectroscopy (XPS), infrared …
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Simplex-type variable structure controllers for stability and performance
… which are perturbed by nonmatching disturbances and parametric uncertainties. The use of simplex-type variable structure controllers (simplex controllers) is analyzed and results are given for both the state feedback and dynamic output feedback cases.
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Robust adaptive control and filtering
… various adaptive systems for control, filtering, and identification. These include the uniform boundedness or mean-square boundedness of all closed-loop signals (robust boundedness, robust ultimate boundedness), the closed-loop system tracking error performance in the presence (robust …
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Chemical evolution, heteroepitaxy, and monolayer patterning of solution-derived lithium niobate thin layers
… are of technical interest for frequency doubling and a variety of efficient photonic circuit element applications. Solution deposition of such films on near lattice-matched substrates has been conducted, allowing low temperature processing, stoichiometry control, doping capability, and waveguiding …
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Anticipatory systems using a probabilistic-possibilistic formalism
… of the Anticipatory Paradigm in the diagnosis and control of complex systems, such as power plants, is developed. The objective is to synthesize engineering systems as analogs of certain biological systems which are capable of modifying their present states on the basis of anticipated future …
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