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.
Results
Showing 1 to 20 of 1923 for “"Engineering, Electronics and Electrical."”.
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Electric Vehicle-Induced Grid Impact Analysis and Its Minimization
… With significant technology improvement and government policies, EVs have increased to 10 million globally. A major bottleneck to accommodate the projected EVs is the development of an affordable and convenient charging infrastructure without needing long waiting times or long-distance …
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Molecular Dynamics Study of Dendrite Formation in Lithium-Metal Anodes
… the relentless growth in global electricity demand, reaching 29,471 TWh in 2023, has underscored the urgent need for advanced energy storage technologies. This thesis addresses key challenges in developing next-generation high-energy rechargeable batteries with a focus on lithium-based anodes. …
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Enhancing TCP traffic flow performance with a proportional and integral rate controller: Theory, design, and performance evaluation
… control algorithm---the PIR (Proportional and Integral Rate) controller. It is designed to overcome the shortcomings of RED and some other related AQM (Active Queue Management) techniques developed in recent years. That is to avoid unnecessary packet losses and stabilize the queue length in …
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Scheduling in multiple processor real-time systems.
… allocations with activity execution times) and selection of different activity scheduling schemes (first-come first-served, earliest due date, shortest activity first, etc. ...). Statistics, such as response execution times, waiting times of ready-to-execute activities, percentage of …
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Analysis and synthesis of linear sequential machines.
… divided into three major topics: Controllability and observability of linear sequential machines, where these principles are presented from the point of view of cyclic subspaces. Such an approach as it pertains to the direct-sum of the state space enables us to extend current results to cases …
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Semiconductor quantum dot lasers.
… epitaxy on GaAs substrates. Carriers injected electrically from the doped regions of separate confinement heterostructures thermalized efficiently into the zero-dimensional QD states, and stimulated emission at $\sim$707 nm is observed at 77 Kelvin with a threshold current of 175 milliamperes …
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Error rate performance analysis of stream and block ciphers in a digital mobile communication channel.
… on the bit error rate at the receiver. Block and stream cipher modes based on the Data Encryption Standard (DES) are examined. More specifically, Electronic Code Book (ECB), Cipher Block Chaining (CBC), Output FeedBack (OFB) and Cipher FeedBack (CFB) modes are considered. The ability of binary …
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REVEALING ADDITIONAL INFORMATION ABOUT ELECTRICITY MARKET UNDERLYING POWER SYSTEM USING POWER SYSTEM PRINCIPLES AND PUBLISHED MARKET RESULTS
… we provide a novel estimation framework designed and structured on duality theory for estimation of some key parameters in electricity markets. Specifically, the framework uses financial transmission right (FTR) auction outcomes such as clearing prices and quantities to estimate implicit …
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Compact Optical Sensing Systems for pH and Other Substances Detection - Theory and Implementation
Chemical detection is of importance in research and industry. Optical sensors based on contact imaging realize the chemical detection in compact, efficient and inexpensive ways. In the first project real-time optical pH sensor based on complementary metal–oxide–semiconductor (CMOS) contact imaging …
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Design of Asymmetric Slope Fractional Band Reject Filters
… new techniques of designing asymmetric-slope band reject filters. Two new non-conventional transfer functions are presented based on the concept of fractional Laplacian operator, s^(α) where 0 < α < 1. It is possible to achieve asymmetric slopes, large values of notch magnitude up to 90 dB and …
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Concurrent substrate coupling noise modeling and active noise reduction methodology for mixed-signal physical design
… The noise can be coupled from noisy devices and interconnects into the common substrate and coupled into analog devices. This noise coupling mechanism poses serious challenges toward the signal integrity of the mixed-signal design. The final performance of the ICs signal integrity is heavily …
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The adjacent errors of adaptive algorithms.
The adjacent errors of adaptive algorithms.
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Designs and applications of periodically loaded modeless integrated circuit subtrates.
Designs and applications of periodically loaded modeless integrated circuit subtrates.
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DESIGNING A CONTROL SYSTEM FOR THE AUTONOMOUS SMALL SCALE HELICOPTER
… Identify the system model (Helicopter model) and the second part is designing the compensator. Modeling the helicopter can be achieved by either first principles modeling or black box modeling. Based on the Model obtained, different controlling techniques can be used to design a compensator to …
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Control of power converter for grid integration of renewable energy conversion and STATCOM systems
… is in response to a number of global challenges and concerns, including climate change, increasing energy demand, and energy security. The investment is widely spread over the leading renewable energy technology sectors: wind, solar, biofuels, biomass, and fuel cells. Among those, wind, solar …
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Compressive gait biometric with wireless distributed pyroelectric sensors
Human tracking and recognition are desirable yet challenging for many applications including surveillance, computer vision, robotics, virtual reality, etc. Many biometric modalities have been used on these applications. Compared to other biometric modalities, such as fingerprints, face, and iris, …
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Analysis of low voltage regulator efficiency based on ferrite inductor
… based on ferrite inductor, using single- and two-phase topologies, were designed and simulated in MATLAB. Simulated values of output voltage and current were used to evaluate the buck converter (i.e., low voltage regulator) for power efficiency and percentage ripple reduction at …
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Partial DS-CDMA for mobile satellite data networks.
In recent years, random access protocols have received considerable attention as useful multiple access techniques for systems with high peak to average traffic ratios (bursty traffic). In most conventional random access protocols, when a single packet is transmitted in a given time period, it is …
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Reliability prediction techniques.
… considers methods for predicting reliability and mean time to first failure of complex systems. The need for these methods, is a result of recent advances in pure materials technology and fabrication procedures, that potentially lead to more reliable systems. In this thesis, two types of …
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