Scholarly Works, Bradley Department of Electrical and Computer Engineering

Acoustic Energy Harvesting and Sensing via Electrospun PVDF Nanofiber Membrane

Shehata, Nader; Hassanin, Ahmed H.; Elnabawy, Eman; Nair, Remya; Bhat, Sameer A.; Kandas, Ishac (MDPI, 2020-05-31)

This paper introduces a new usage of piezoelectric poly (vinylidene fluoride) (PVDF) electrospun nanofiber (NF) membrane as a sensing unit for acoustic signals. In this work, an NF mat has been used as a transducer to ...

Lidar Data Reduction for Unmanned Systems Navigation in Urban Canyon

Mayalu, Alfred K.; Kochersberger, Kevin; Jenkins, Barry; Malassenet, François (MDPI, 2020-05-27)

This paper introduces a novel protocol for managing low altitude 3D aeronautical chart data to address the unique navigational challenges and collision risks associated with populated urban environments. Based on the Open ...

Power Side-Channel Attack Analysis: A Review of 20 Years of Study for the Layman

Randolph, Mark; Diehl, William (MDPI, 2020-05-19)

Physical cryptographic implementations are vulnerable to so-called side-channel attacks, in which sensitive information can be recovered by analyzing physical phenomena of a device during operation. In this survey, we trace ...

I/O Schedulers for Proportionality and Stability on Flash-Based SSDs in Multi-Tenant Environments

Kim, Jaeho; Lee, Eunjae; Noh, Sam H. (2019-12-30)

The use of flash based Solid State Drives (SSDs) has expanded rapidly into the cloud computing environment. In cloud computing, ensuring the service level objective (SLO) of each server is the major criterion in designing ...

DOA Robust Estimation of Echo Signals Based on Deep Learning Networks With Multiple Type Illuminators of Opportunity

Hu, Bo; Liu, Mingqian; Yi, Fei; Song, Hao; Jiang, Fan; Gong, Fengkui; Zhao, Nan (2020-01-14)

Traditional DOA estimation algorithms have poor adaptability to antenna errors. To enhance the direction of arrival (DOA) estimation performance for moving target echo signals in the environment of multiple type illuminators ...

Electrical characterization of RuOx/n-GaN Schottky diodes formed by oxidizing ruthenium thin-films in normal laboratory air

Allen, Noah; Ciarkowski, Timothy; Carlson, Eric; Chakraborty, Amrita; Guido, Louis (2020-01)

Schottky diodes were formed by oxidizing Ru thin films deposited on n-type GaN at 400, 500, and 600 degrees C in normal laboratory air, and their electrical behavior was compared to that of a Ru/n-GaN reference device. The ...

High power density technologies for large generators and motors for marine applications with focus on electrical insulation challenges

Ghassemi, Mona (2020-02)

High power density generators and motors are envisaged in modern all-electric ships where electrical power for both propulsion and service loads is provided through a common electrical platform known as an integrated power ...

A Finite Element Analysis Model for Partial Discharges in Silicone Gel under a High Slew Rate, High-Frequency Square Wave Voltage in Low-Pressure Conditions

Borghei, Moein; Ghassemi, Mona (MDPI, 2020-05-01)

Wide bandgap (WBG) devices made from materials such as SiC, GaN, Ga₂O₃ and diamond, which can tolerate higher voltages and currents compared to silicon-based devices, are the most promising approach ...

A Combined Koopman-Subgraph Method for a Secure Power System Islanding

Jlassi, Zahra; Ben Kilani, Khadija; Elleuch, Mohamed; Mili, Lamine (2020-03)

This paper proposes a new methodology for power system islanding based on Koopman modal coherency (KMC) combined with subgraph theory. Initial system partitioning is determined from the Koopman bus-angle coherency matrix. ...

Effects of Frequency and Temperature on Electric Field Mitigation Method via Protruding Substrate Combined with Applying Nonlinear FDC Layer in Wide Bandgap Power Modules

Mesgarpour Tousi, Maryam; Ghassemi, Mona (MDPI, 2020-04-18)

Our previous studies showed that geometrical techniques including (1) metal layer offset, (2) stacked substrate design and (3) protruding substrate, either individually or combined, cannot solve high electric field issues ...

Enhancing the Quality of Sampled Phase-Only Hologram (SPOH) Based on Time-Division Comb Filtering

Tsang, Peter W. M.; Liu, Jung-Ping; Lam, Hoson; Poon, Ting-Chung (MDPI, 2020-04-15)

Generation of digital phase-only Fresnel holograms is an important research area in digital holography, as it leads to a substantial simplification of a holographic display system. However, the quality of the reconstructed ...

Using Heterogeneous Satellites for Passive Detection of Moving Aerial Target

Liu, Mingqian; Li, Kunming; Song, Hao; Chen, Yunfei; Gao, Xiuhui; Gong, Fengkui (MDPI, 2020-04-03)

Passive detection of a moving aerial target is critical for intelligent surveillance. Its implementation can use signals transmitted from satellites. Nowadays, various types of satellites co-exist which can be used for ...

Gold/QDs-Embedded-Ceria Nanoparticles: Optical Fluorescence Enhancement as a Quenching Sensor

Shehata, Nader; Samir, Effat; Kandas, Ishac (MDPI, 2020-02-12)

This work focuses on improving the fluorescence intensity of cerium oxide (ceria) nanoparticles (NPs) through added plasmonic nanostructures. Ceria nanoparticles are fluorescent nanostructures which can emit visible ...

In-Situ Gold–Ceria Nanoparticles: Superior Optical Fluorescence Quenching Sensor for Dissolved Oxygen

Shehata, Nader; Kandas, Ishac; Samir, Effat (MDPI, 2020-02-12)

Cerium oxide (ceria) nanoparticles (NPs) have been proved to be an efficient optical fluorescent material through generating visible emission (~530 nm) under violet excitation. This feature allowed ceria NPs to be used as ...

Dynamic Intermode Beat Frequency Control of an Optical Frequency Comb Single Section Quantum Dot Laser by Dual-Cavity Optical Self-Injection

Stutz, Sebastian; Auth, Dominik; Weber, Christoph; Drzewietzki, Lukas; Nikiforov, Oleg; Rosales, Ricardo; Walther, Thomas; Lester, Luke F.; Breuer, Stefan (2019-10)

Dynamic frequency tuning of the 40.67 GHz intermode beat frequency of a 1255 nm emitting 1 mm long monolithic self mode-locked single section optical frequency comb InAs/InGaAs quantum dot laser across 70 MHz is experimentally ...

Real-time prediction of patient immune cell modulation during irreversible electroporation therapy

Beitel-White, N.; Martin, R. C. G.; Li, Y.; Brock, R. M.; Allen, Irving C.; Davalos, R. V. (2019-11-28)

Immunotherapies have demonstrated limited efficacy in pancreatic ductal adenocarcinoma (PDAC) patients despite their success in treating other tumor types. This limitation is largely due to the relatively immunosuppressive ...

Transmission Lines Positive Sequence Parameters Estimation and Instrument Transformers Calibration Based on PMU Measurement Error Model

Wang, Chen; Centeno, Virgilio A.; Jones, Kevin D.; Yang, Duotong (IEEE, 2019-10-17)

Phasor Measurement Unit measurement data have been widely used in nowadays power system applications both in steady state and dynamic analysis. The performance of these applications running in utilities' energy management ...