Results 1 to 10 of about 9,041 (189)

Thermoelectric Energy Conversion in a Lid-Driven Cavity Microgenerator Using Nanofluids [PDF]

open access: yesNanomaterials
The present research seeks to characterize and evaluate a lid-driven cavity–TEG system to harness residual energy. Therefore, the behavior of water and a nanofluid (SiO2) in a rectangular lid-driven cavity is numerically studied.
Edgar Alexandro Gonzalez-Zamudio   +2 more
doaj   +2 more sources

A Dual Circularly-Polarized Multilayer Reflective Surface Based on Loaded Ring Slots

open access: yesIEEE Access, 2021
In this paper, a dual circularly-polarized multilayer reflective surface (MRS) based on loaded ring-slots for reflectarray applications is presented. The MRS comprises a wideband multilayer circular polarizer cascaded with a multilayer reflective screen ...
Lourdes Martinez-Lopez   +4 more
doaj   +1 more source

Independently Tunable Closely Spaced Triband Frequency Selective Surface Unit Cell Using the Third Resonant Mode of Split Ring Slots

open access: yesIEEE Access, 2021
In this paper, a tunable triband frequency selective surface unit cell based on varactor-loaded split ring slots is presented. By using the third resonant mode, a considerable mutual coupling reduction between adjacent ring slots is obtained ensuring ...
Henry Fabian-Gongora   +5 more
doaj   +1 more source

Close Band Spacing Pentaband Frequency Selective Surfaces Based on Concentric Ring Slots

open access: yesIEEE Access, 2021
This paper presents a polarization insensitive frequency selective surface (FSS) based on concentric ring slots with five closely spaced passbands. The proposed FSS unit cell contains five ring slots coupled with a supplementary innermost ring slot.
Lourdes Martinez-Lopez   +5 more
doaj   +1 more source

Takagi–Sugeno State Delayed Feedback and Integral Control for PV Systems: Modeling, Simulation, and Control

open access: yesInternational Journal of Photoenergy, 2021
The integration of the large-scale photovoltaic systems has experienced significant growth, which is similarly expected to occur with small-scale photovoltaic systems.
Hicham El Aiss   +3 more
doaj   +1 more source

IoT Based Smart Electrical Meter for Smart Homes [PDF]

open access: yesEAI Endorsed Transactions on Internet of Things, 2020
The mankind’s home has evolved as humanity itself and through history, humanity has observed the safetyand comfort of their homes. The adaptation of homes to the modern times, is now involved in a technologicalenvironment and constant innovation ...
Ma. Martinez-Blanco   +6 more
doaj   +1 more source

Benign and Malignant Breast Tumor Classification in Ultrasound and Mammography Images via Fusion of Deep Learning and Handcraft Features

open access: yesEntropy, 2023
Breast cancer is a disease that affects women in different countries around the world. The real cause of breast cancer is particularly challenging to determine, and early detection of the disease is necessary for reducing the death rate, due to the high ...
Clara Cruz-Ramos   +5 more
doaj   +1 more source

Power System Dynamic Data Generation Based on Monte Carlo Simulations for Machine Learning Applications

open access: yesEngineering Proceedings, 2023
A problem with applying machine learning for analyzing power system dynamics is the lack of specific datasets. In this realm, defining a strong methodology to obtain power system dynamic data is an important task prior to the application of any machine ...
Jaime Cepeda
doaj   +1 more source

Measuring and Energizing Sensor System for Digital Signal Monitoring of an Academic–Experimental CubeSat for Wireless Telemetry Purposes

open access: yesSensors, 2023
Space technology for small satellites has made significant progress in the academic and industrial fields, and an alternative focused on educational institutions is the CubeSat standard, created to promote various scientific projects of space exploration.
Jose Pablo Garcia-Fernandez   +5 more
doaj   +1 more source

Data-Driven, Web-Based Parameter Identification for a Reduced-Order Model of the Chilean Power System

open access: yesEnergies, 2022
The current need for power-system control-room operational tools to increase real-time situational awareness has led to various proposals on data analytics algorithms to obtain operational information from SCADA and PMU power system networks. Most of the
Juan Quiroz   +3 more
doaj   +1 more source

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