Results 181 to 190 of about 123,380 (313)

Aqueous Carbonation of Calcium Silicates With Different Ca/Si Ratios Studied by Solid‐State NMR Spectroscopy

open access: yesMagnetic Resonance in Chemistry, Volume 63, Issue 7, Page 476-494, July 2025.
Six calcium silicates with Ca/Si ratios from 1 to 3 have been exposed to aqueous carbonation at ambient conditions and characterized by 29Si and 13C MAS and CP/MAS NMR spectroscopy. The analysis reveals that the structure and composition of the produced silica gel is independent of the starting materials Ca/Si ratio.
Rune Wittendorff Mønster Jensen   +1 more
wiley   +1 more source

Sustainable fabrication of ZnO nanorod/PVDF nanocomposites for ultraviolet photodetection and energy harvesting

open access: yesSPE Polymers, Volume 6, Issue 3, July 2025.
This study presents the sustainable fabrication and characterization of poly(vinylidene fluoride) (PVDF) nanocomposite films doped with zinc oxide nanorods (ZnO‐NRs), synthesized via a green method utilizing Cymbopogon citratus (lemon grass) as a natural reducing agent.
Pawan Kumar   +9 more
wiley   +1 more source

RESENHAS

open access: yesReflexão
P, Banyard e N. Hayes THINKING AND PROBLEM SOLVING, The British Psychological Society, Leicester, 1991, 30 páginas ($3,99 libras). Michael Macrone A LITTLE KNOWLEDGE, London, Pavilion Books, 1995, 253 páginas, ilustrações de Tom Lulevltch.
Reflexão
doaj  

Facial Expression Recognition from Multi-Perspective Visual Inputs and Soft Voting. [PDF]

open access: yesSensors (Basel), 2022
Aguileta AA   +3 more
europepmc   +1 more source

Libra: An Economy driven Job Scheduling System for Clusters

open access: green, 2002
Jahanzeb Sherwani   +4 more
openalex   +2 more sources

Das Geschäftsmodell hinter Libra

open access: yes, 2019
Die Kryptowahrung Libra soll nach den Planen von Facebook Inc. ab 2020 aufeiner neuen dezentralen Blockchain ans Publikum ausgegeben werden. Nut-zern wird eine erhohte Wertbestandigkeit in Aussicht gestellt, die namentlichauf zwei Faktoren beruhen soll: Einerseits soll jede Libra durch reale Vermo-genswerte gedeckt sein und andererseits soll ein ...
Zellweger-Gutknecht, Corinne   +1 more
openaire   +3 more sources

Mind maps for eliciting and assessing plant awareness: A preliminary study on pre‐service teachers

open access: yesPLANTS, PEOPLE, PLANET, Volume 7, Issue 4, Page 1043-1054, July 2025.
Teachers play an indispensable role in promoting citizens' plant awareness. To this end, they need adequate plant knowledge –including classification–, experience in out‐of‐classroom settings, and enthusiasm for plants. With the aim of improving pre‐service teachers' plant awareness, we designed and implemented a didactic sequence including several ...
Marcia Eugenio‐Gozalbo   +2 more
wiley   +1 more source

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