Results 141 to 150 of about 601 (266)
Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa +4 more
wiley +1 more source
Polyvinylidene Fluoride: A Growing Specialty Polymer with Many Facets
Chinese Journal of Chemistry, EarlyView.Comprehensive Summary Polyvinylidene fluoride (PVDF), the second largest produced fluoropolymer, exhibits outstanding chemical, physical, electroactive and electrochemical properties and is involved in many High‐Tech applications. This review reports recent novelties in synthesis, characterization, processes and applications. Recent preparation studies
Bruno Améduri
wiley +1 more source
GNSS hydrology: Defining a new interdiscipline integrating GNSS hydrogeodesy and remote sensing. [PDF]
Innovation (Camb)Wan W +4 more
europepmc +1 more source
Transient heating in fixed length optical cavities for use as temperature and pressure standards. [PDF]
Metrologia, 2021 Ricker J +5 more
europepmc +1 more source
The Curriculum Journal, EarlyView.Abstract Curriculum reform provides a vital opportunity for nations to ensure learners are equipped to fully participate as citizens in the 21st century. This paper presents an understanding of educators’ response to curriculum reform, and some of its enablers and barriers.
Alison Glover +5 more
wiley +1 more source
Dynamics of bubble absorption over porous membranes in an immersed medium
Droplet, EarlyView.The dynamics of a bubble interacting with a flat, porous superhydrophobic membrane underwater has been illustrated. Abstract Porous superhydrophobic (SHP) membranes are gaining considerable attention due to their excellent underwater absorption and drag reduction properties. They exploit the Cassie‒Baxter state of wetting to remove the bubble in a fast
Kiran Raj M
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
wiley +1 more source
Synthesis of Al<sub>2</sub>O<sub>3</sub>-Reinforced SrO-SiO<sub>2</sub>-K<sub>2</sub>O glasses with enhanced optical, and biological properties for biomedical applications. [PDF]
Sci RepSachan A +10 more
europepmc +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Cement phases are good materials for radiative cooling thanks to the selective emissivity in IR ATW. Cement powders have high reflectance of solar radiation which reduces the thermal losses. The onset of the absorption curves is defined by bound excitons. Sulfates have higher radiated powers and reflectance than calcium silicates.
Jozef Janovec +3 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A scalable, color‐adaptive radiative cooling coating is developed to enable dynamic spectral regulation via a reversible thermochromic transition at ~45 °C and a high solar reflectance of 91.7%. The coating achieves 4.44 °C outdoor sub‐ambient cooling while providing robust superhydrophobicity and environmental durability through its micro/nano ...
Ziqi Li +8 more
wiley +1 more source