Results 91 to 100 of about 2,532,839 (338)

A comprehensive review of natural fibers and their composites: An eco-friendly alternative to conventional materials

open access: yesResults in Engineering, 2023
Issam Elfaleh   +6 more
semanticscholar   +1 more source

Eco-Labelling, the State and Consumer Confidence [PDF]

open access: yes, 2009
Trustworthy eco-labels provide consumers with valuable information on environmentally friendly products and thus promote green consumerism. But what makes an eco-label trustworthy and what can government do to increase consumer confidence?
Daugbjerg, Carsten   +1 more
core  

Solvent‐Free Bonding Mechanisms and Microstructure Engineering in Dry Electrode Technology for Lithium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...
Yuhao Liang   +7 more
wiley   +1 more source

Cinco sentidos de semántica

open access: yesActa Poética, 2018
El semiólogo y escritor italiano Umberto Eco (1932-2016) problematiza la noción de semántica, entendida de manera limitada como “el estudio del significado de las palabras”.
Umberto Eco
doaj   +1 more source

Naturally Derived Donor‐π‐Acceptor Compounds for Efficient Long‐Wavelength LEDs/Sunlight‐Induced Polymerization and High‐Precision Multiple 3D Printing

open access: yesAdvanced Functional Materials, EarlyView.
Two novel donor–π–acceptor photoinitiators enable ultrafast long‐wavelength photopolymerization under blue/green LEDs and sunlight. Effective at low intensities and concentrations, they overcome slow kinetics and permit rapid 3D printing via DLW, DLP, and LCD methods.
Ji Feng   +9 more
wiley   +1 more source

RESIDUOS AGROINDUSTRIALES COMO ADICIONES EN LA ELABORACIÓN DE BLOQUES DE CONCRETO NO ESTRUCTURAL

open access: yesCiencia e Ingeniería Neogranadina, 2015
La introducción de residuos industriales como sustitutos del cemento en bloques ecológicos de construcción, brindan la posibilidad de establecer un amplio desarrollo a nivel ambiental, social y económico.
Natalia Fuentes Molina   +2 more
doaj  

Labor crítica del periodismo

open access: yesChasqui, 2015
Señala que la función del cuarto Poder es la de controlar y criticar a los poderes tradicionales, esta crítica no tiene funciones represivas: los medios pueden influir en la vida política del país solamente creando opinión.
Umberto Eco
doaj   +1 more source

Laser‐Induced Microfabrication of Carbon Nanostructure: Processing Mechanism and Application for Next‐Generation Battery Technology

open access: yesAdvanced Functional Materials, EarlyView.
The article reviews laser‐processed carbons from various precursors, processing mechanism and their application in advanced batteries. The laser process is chemical free, fast, and scalable, enabling improved battery performance and stability for Li, Na, and Zn battery technologies.
Sujit Deshmukh   +2 more
wiley   +1 more source

Sign

open access: yesPráxis Pedagógica, 2008
No summary.
Umberto Eco
doaj   +1 more source

The eco- in eco-epidemiology [PDF]

open access: yesInternational Journal of Epidemiology, 2006
Dana, March, Ezra, Susser
openaire   +2 more sources

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