Engineering Commons^™

Review—Machine Learning Techniques In Wireless Sensor Network Based Precision Agriculture, Yemeserach Mekonnen, Srikanth Namuduri, Lamar Burton, Arif I. Sarwat, Shekhar Bhansali

Electrical and Computer Engineering Faculty Publications

The use of sensors and the Internet of Things (IoT) is key to moving the world's agriculture to a more productive and sustainable path. Recent advancements in IoT, Wireless Sensor Networks (WSN), and Information and Communication Technology (ICT) have the potential to address some of the environmental, economic, and technical challenges as well as opportunities in this sector. As the number of interconnected devices continues to grow, this generates more big data with multiple modalities and spatial and temporal variations. Intelligent processing and analysis of this big data are necessary to developing a higher level of knowledge base and insights …

A Novel Audiovisual P300-Speller Paradigm Based On Cross-Modal Spatial And Semantic Congruence, Zhaohua Lu, Changchun University Of Science And Technology, Ning Gao, Jingjing Yang, Ou Bai

Electrical and Computer Engineering Faculty Publications

Objective: Although many studies have attempted to improve the performance of the visual-based P300-speller system, its performance is still not satisfactory. The current system has limitations for patients with neurodegenerative diseases, in which muscular control of the eyes may be impaired or deteriorate over time. Some studies have shown that the audiovisual stimuli with spatial and semantic congruence elicited larger event-related potential (ERP) amplitudes than do unimodal visual stimuli. Therefore, this study proposed a novel multisensory P300-speller based on audiovisual spatial and semantic congruence.

Methods: We designed a novel audiovisual P300-speller paradigm (AV spelling paradigm) in which the pronunciation and …

Nanocomposite Bienzymatic Sensor For Monitoring Xanthine In Wound Diagnostics, Sohini Roychoudhury, Yogeswaran Umasankar, Pulak Bhushan, Penelope A. Hirt, Flor E. Macquhae, Luis J. Borda, Hadar A. Lev-Tov, Robert Kirsner, Shekhar Bhansali

Electrical and Computer Engineering Faculty Publications

This work reports a biosensor for monitoring xanthine for potential wound healing assessment. Active substrate of the biosensor has xanthine oxidase (XO) and horseradish peroxidase (HRP) physisorbed on a nanocomposite of multiwalled carbon nanotubes (MWCNT) decorated with gold nanoparticles (AuNP). The presence of HRP provided a two-fold increase in response to xanthine, and a three-fold increase in response to the nanocomposite. With a sensitivity of 155.71 nA μM−1 cm−2 the biosensor offers a detection limit of 1.3 μM, with linear response between 22 μM and 0.4 mM. Clinical sample analyses showed the feasibility of xanthine detection from biofluids in a …

Case Study On The Effects Of Partial Solar Eclipse On Distributed Pv Systems And Management Areas, Aditya Sundararajan, Temitayo O. Olowu, Longfei Wei, Shahinur Rahman, Arif I. Sarwat

Electrical and Computer Engineering Faculty Publications

Photovoltaic (PV) systems are weather-dependent. A solar eclipse causes significant changes in these parameters, thereby impacting PV generation profile, performance, and power quality of larger grid, where they connect to. This study presents a case study to evaluate the impacts of the solar eclipse of 21 August 2017, on two real-world grid-tied PV systems (1.4 MW and 355 kW) in Miami and Daytona, Florida, the feeders they are connected to, and the management areas they belong to. Four types of analyses are conducted to obtain a comprehensive picture of the impacts using 1 min PV generation data, hourly weather data, …

Hydrothermal Growth Of Zinc Oxide (Zno) Nanorods (Nrs) On Screen Printed Ides For Ph Measurement Application, Aksaya Kumar A., Naveen Kumar S.K.,, Almaw Ayele Aniley, Renny Edwin Fernandez, Shekhar Bhansali

Electrical and Computer Engineering Faculty Publications

There is considerable interest in nanostructured materials with interdigitated electrodes (IDEs) platforms to detect and monitor the level of various ions in numerous applications. Herein, we report the design and fabrication of IDEs based pH sensor by using hydrothermal growth of ZnO nanorods (NRs). A four-step deposition of ZnO seed layer followed by a hydrothermal treatment lead to the heavily ordered ZnO NRs patterns on the screen printed IDEs. The structural, chemical compositional and electrical properties of the NRs were investigated and examined by using field emission scanning electron microscopy (FeSEM), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS), X-ray …

Hydrothermal Growth Of Zinc Oxide (Zno) Nanorods (Nrs) On Screen Printed Ides For Ph Measurement Application, Akshaya Kumar A., Naveen Kumar S.K., Almaw Ayele Aniley, Renny Edwin Fernandez, Shekhar Bhansali

Electrical and Computer Engineering Faculty Publications

There is considerable interest in nanostructured materials with interdigitated electrodes (IDEs) platforms to detect and monitor the level of various ions in numerous applications. Herein, we report the design and fabrication of IDEs based pH sensor by using hydrothermal growth of ZnO nanorods (NRs). A four-step deposition of ZnO seed layer followed by a hydrothermal treatment lead to the heavily ordered ZnO NRs patterns on the screen printed IDEs. The structural, chemical compositional and electrical properties of the NRs were investigated and examined by using field emission scanning electron microscopy (FeSEM), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS), X-ray …

Single And Multiobjective Optimal Reactive Power Dispatch Based On Hybrid Artificial Physics–Particle Swarm Optimization, Tawfiq M. Aljohani, Ahmed F. Ebrahim, Osama A. Mohammed

Electrical and Computer Engineering Faculty Publications

The optimal reactive power dispatch (ORPD) problem represents a noncontinuous, nonlinear, highly constrained optimization problem that has recently attracted wide research investigation. This paper presents a new hybridization technique for solving the ORPD problem based on the integration of particle swarm optimization (PSO) with artificial physics optimization (APO). This hybridized algorithm is tested and verified on the IEEE 30, IEEE 57, and IEEE 118 bus test systems to solve both single and multiobjective ORPD problems, considering three main aspects. These aspects include active power loss minimization, voltage deviation minimization, and voltage stability improvement. The results prove that the algorithm is …