Results 121 to 130 of about 13,840,524 (289)

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

open access: yesAdvanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair   +3 more
wiley   +1 more source

Nutzungspraktiken im Social Web

open access: yesMedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, 2010
In den vergangenen Jahren haben sich die Nutzungsmöglichkeiten und -praktiken im Internet deutlich verändert. Angestoßen wurde diese Entwicklung vor allem durch die fortschreitende Diffusion von leistungsfähigen Breitbandanschlüssen und innovativern ...
Jan Schmidt   +2 more
doaj  

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang   +14 more
wiley   +1 more source

Towards an Integrated Social Semantic Web

open access: yes, 2013
The Social Semantic Web is the data space on the Web where human produced information are enriched and modeled using Semantic Web standards. This vision is enabled by the convergence between Web 2.0 and Web 3.0 but still, it's far from be put into ...
MACCIONI, ANTONIO, Antonio Maccioni
core   +1 more source

Emergent Spin Supersolids in Frustrated Quantum Materials

open access: yesAdvanced Materials, EarlyView.
This review highlights developments in the study of spin super‐solids in frustrated quantum materials. Advanced experimental characterizations and computational studies enable a comprehensive understanding of the driving mechanisms of spin super‐solidity in various layered transition‐metal compounds, bridging materials, experiments, and theory aspects.
Yixuan Huang   +2 more
wiley   +1 more source

Recent Progress in the Phase‐Controlled Synthesis of Ruthenium Nanocrystals for Catalytic Applications

open access: yesAdvanced Materials, EarlyView.
Template effect and kinetic control enable crystal‐phase engineering of Ru nanocrystals, granting access to either metastable fcc‐Ru or stable hcp‐Ru with distinct surface structures, thermal stabilities, and catalytic behaviors. Moreover, the hcp‐Ru can further serve as an epitaxial template to direct Pd and Rh nanocrystals into the metastable hcp ...
Jianlong He   +3 more
wiley   +1 more source

Challenging educational expectations of the social web: a web 2.0 far?

open access: yesNordic Journal of Digital Literacy, 2009
This short position paper reconsiders the exaggerated expectations that currently surround the social web and education within many sections of the education technology community.
Neil Selwyn
doaj  

Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?

open access: yesAdvanced Materials, EarlyView.
This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley   +1 more source

Challenging educational expectations of the social web: a web 2.0 far?

open access: yesNordic Journal of Digital Literacy, 2015
This short position paper reconsiders the exaggerated expectations that currently surround the social web and education within many sections of the education technology community.
Neil Selwyn
doaj  

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