Results 71 to 80 of about 151,685 (210)

Enhancing Stability of Microwave‐Synthesized Cs2SnxTi1‐xBr6 Perovskite by Cation Mixing

open access: yesChemSusChem, Volume 18, Issue 9, May 5, 2025.
This research introduces a microwave radiation synthesis technique for synthesizing Cs2SnxTi1‐xBr6 lead‐free double perovskite powders. By incorporating Sn4+ cations, the stability of the material is improved, particularly at elevated temperatures and outside conditions.
Emmanuel Reyes‐Francis   +9 more
wiley   +1 more source

Boundary extraction through gradient-based evolutionary algorithm

open access: yesJournal of Computer Science and Technology, 2003
Boundary extraction is an important procedure associated with recognition and interpretation tasks in digital image processing and computer vision. Most of the segmentation techniques are based on the detection of the local gradient, and then their ...
Román Katz, Claudio Delrieux
doaj  

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

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   +1 more source

Development of an Easy-to-Use Multi-Agent Platform for Teaching Mobile Robotics

open access: yesIEEE Access, 2019
The use of mobile robots for teaching automatic control is becoming more popular in engineering curricula. Currently, many robot simulators with high-graphical capabilities can be easily used by instructors to teach control engineering.
Gonzalo Farias   +5 more
doaj   +1 more source

Mathematical modeling and fuzzy proportional–integral–derivative scheme to control the yaw motion of a wind turbine

open access: yesWind Energy, 2021
In this paper, we present a mathematical model and control strategy to regulate the yaw of a horizontal axis wind turbine. In order to obtain the dynamic equations of the yaw motion, the mathematical model is developed using the Euler–Lagrange ...
Eduardo Campos‐Mercado   +4 more
doaj   +1 more source

Cálculo II. Grados en ingeniería eléctrica, ingeniería mecánica, ingeniería química e ingeniería en tecnologías industriales

open access: yes, 2019
A lo largo del libro estudiaremos los metodos habituales de resolucion de ecuaciones diferenciales y complementaremos este contenido mostrando diversas aplicaciones que estos metodos tienen en fenomenos reales de la fisica y la ingenieria.
Cristina Chiralt   +1 more
semanticscholar   +1 more source

Prussian‐Blue Catalysis and NFC Synergy: a Battery‐Free Laser‐Induced Graphene‐Based Platform for Urine Glucose Monitoring at Point‐of‐Care

open access: yesAdvanced Science, Volume 12, Issue 20, May 29, 2025.
In this study, Merkoçi and his research group present a polymer‐based synthesis to enhance the stability of Prussian blue (PB) nanoparticles. The resulting PB‐infused catalytic hetero‐interface architecture (PB‐CHIA) achieves complete two‐dimensional (2D) and three‐dimensional (3D) substrate coverage (glassy carbon and laser‐induced graphene electrodes)
Sinan Uzunçar   +3 more
wiley   +1 more source

Polycaprolactone/MSMA composites for magnetic refrigeration applications

open access: yesPolymer Composites, Volume 46, Issue 1, Page 427-437, 10 January 2025.
PCL/Ni‐Mn‐In‐Co printable composites are promising candidates for development of high surface/volume ratio heat exchangers for magnetic refrigeration applications. Abstract A high filling load (62% weight) printable magnetic composite has been elaborated from the dispersion of magnetocaloric Ni45Mn36.7In13.3Co5 metamagnetic shape memory alloy ...
V. Sánchez‐Alarcos   +9 more
wiley   +1 more source

A Prediction about Radio Frequency Envelope Detectors for Implementing a 2.4 GHz Rectenna for IEEE 802.15.4 with MOS Transistors

open access: yesChips
This study introduces a rectenna, functioning as an RF envelope detector, utilizing a 16 nm bulk MOS transistor (metal-oxide-semiconductor field-effect transistor) for nonlinear detection.
Leonardo Barboni
doaj   +1 more source

5. jornadas hispano-lusas de ingenieria electrica

open access: yes, 1997
Three volumesCentro de Informacion y Documentacion Cientifica (CINDOC). C/Joaquin Costa, 22. 28002 Madrid.
Lisboa Univ. Nova, Lisbon (Portugal). Dept. de Engenharia Electrotecnica   +2 more
core  

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