Results 41 to 50 of about 865,319 (146)

Desempeño de inversores multinivel para energías renovables, una alternativa a la generación distribuida en México

open access: yesRevista Científica de Ingeniería Energética, 2023
En la actualidad el empleo de sistemas de generación eléctrica a través de fuentes alternas de energía incrementa continuamente, debido al aumento de la demanda energética, reduciendo las emisiones de CO2.
Francisco Eneldo López Monteagudo   +5 more
doaj  

DIDACTIC APPLICATIONS OF MULTIMEDIA AND INTERNET SYSTEMS IN DISTANCE EDUCATION

open access: yesRIED: Revista Iberoamericana de Educación a Distancia, 2000
This article purpose is double; one face we t,y to test the New Technologies application building up significant learning through the preparation of multimedia applications using Internet and based on CDROM, and in other face offering to the students and
Manuel-Alonso Castro Gil   +3 more
doaj   +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

Microplastic Identification Using Impedance Spectroscopy and Machine Learning Algorithms

open access: yesInternational Journal of Distributed Sensor Networks
Detecting and classifying microparticles in water and other liquid substances is crucial due to their detrimental impact on ecosystems and human health.
Juan Sarmiento   +2 more
doaj   +1 more source

Fuel cells with lifting converters for alternative energies [PDF]

open access: yesRevista Científica de Ingeniería Energética, 2019
The need for energy in the world has led to the search for new ways of electric power generation, among which is the use of fuel cells as a renewable source that does not contribute to environmental pollution and has high efficiency in ...
Francisco Eneldo López Monteagudo   +7 more
doaj  

Mildred Dresselhaus: la reina del carbono

open access: yesPrisma Tecnológico, 2017
Este artículo presenta la vida de Mildred Dresselhaus, profesora emérita de Física e Ingeniería Eléctrica del MIT, cuyas contribuciones se encuentran en los campos de la ingeniería eléctrica y física, específicamente siendo investigadora pionera en las ...
Guadalupe G. González
doaj  

Infrared Microscopy Imaging of Index-Finger Pads

open access: yesIEEE Access, 2018
In this paper, we present the mid-wave infrared microscopic view of index finger pads of voluntary subjects, an analysis of their thermoregulation response, and a study of their thermal spatial morphology.
Laura A. Viafora   +5 more
doaj   +1 more source

Tuning the Sensitivity of Photonic Sensors Toward Alkanes Through the Textural Properties of Hybrid Xerogel Coatings

open access: yesAdvanced Functional Materials, Volume 35, Issue 3, January 15, 2025.
A propylsilane molar content of just 5% makes a poor‐responding silica xerogel film to become sensitive toward non‐aromatic, large volatile organic compounds with low or null polarity when assembled into a photonic sensor with reflection architecture. This device is particularly suitable to detect cyclohexane, with large signal variation, fast kinetics,
Beatriz Rosales‐Reina   +6 more
wiley   +1 more source

Análisis de un sistema híbrido solar eólico para suministro de energía eléctrica [PDF]

open access: yes, 2003
El panorama socioeconómico actual ha propiciado un gran auge en el uso de energías renovables. El importante crecimiento de estas energías, también se debe en gran medida a la preocupación social por los impactos medioambientales de las denominadas ...
Martínez-Lacañina, Pedro José   +4 more
core   +1 more source

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