Results 61 to 70 of about 739,365 (344)

Graphene electronic fibres with touch-sensing and light-emitting functionalities for smart textiles

open access: yesnpj Flexible Electronics, 2018
Wearable electronics: graphene textiles get really smart Complex functionalities have been brought on to the graphene coated textile fibres in a roll-to-roll-compatible fashion for the first time. A collaborative team led by Monica F.
Elias Torres Alonso   +11 more
doaj   +1 more source

A spatial emergent constraint on the sensitivity of soil carbon turnover to global warming

open access: yesNature Communications, 2020
The fate of the carbon locked away in soil is uncertain, and there are vast differences between models. Here the authors apply observational, spatio-temporal constraints on carbon turnover projections and find that uncertainty in estimations of carbon ...
Rebecca M. Varney   +6 more
doaj   +1 more source

The Influence of Senior Secondary School Learners’ Attitudes Towards Mathematics on Their Performance in Selected Rural Secondary Schools in Vhembe West District [PDF]

open access: yesJournal of Studies in Social Sciences and Humanities, 2022
The study investigated the influence of learners’ attitudes on their Mathematics performance in some selected secondary schools in Vhembe West District. The researcher used a mixed methods approach in this study.
Simon A. Tachie , M. Mafhenya
doaj  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Science is a Part of the Culture

open access: yesAdvances in Electrical and Electronic Engineering, 2004
The contribution points on relation between sciences and various aspects of the life of a society. The relation of physics and mathematics with technical disciplines is stressed.
Ivan Turek
doaj  

The Language of Spheres in Physics

open access: yesUniverse
Physical laws manifest themselves through the amalgamation of mathematical symbols, numbers, functions, geometries, and relationships. These intricate combinations unfold within a mathematical model devised to capture and represent the “objective reality”
Jean-Pierre Gazeau
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Interface and properties of inorganic fullerene tungsten sulphide nanoparticle reinforced poly (ether ether ketone) nanocomposites

open access: yesResults in Physics, 2017
We report a simple and effective method to fabricate PEEK (poly ether ether ketone)/IF-WS2 (Inorganic Fullerene Tungsten Sulphide) nanocomposites with IF-WS2 content up to 8 wt%.
Nannan Wang   +6 more
doaj   +1 more source

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