Results 61 to 70 of about 736,821 (300)

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

Mathematical and physical ideas for climate science [PDF]

open access: yesReviews of Geophysics, 2014
The climate is a forced and dissipative nonlinear system featuring non-trivial dynamics of a vast range of spatial and temporal scales. The understanding of the climate's structural and multiscale properties is crucial for the provision of a unifying picture of its dynamics and for the implementation of accurate and efficient numerical models.
Lucarini V.   +5 more
openaire   +5 more sources

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya   +3 more
wiley   +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

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  

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

In memory of Vladimir Ivanovich Astafyev (30.11.1948–08.02.2024)

open access: yesВестник Самарского университета: Естественнонаучная серия
The article is dedicated to the memory of Doctor of Physical and Mathematical Sciences, Professor Vladimir Ivanovich Astafiev, whose professional activity for more than 35 years has been associated with Samara University.
Larisa V. Stepanova   +5 more
doaj   +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

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

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

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