Results 101 to 110 of about 253,971 (308)

Surfactant free fabrication of copper sulphide (CuS–Cu2S) nanoparticles from single source precursor for photocatalytic applications

open access: yesJournal of Saudi Chemical Society, 2017
A simple, ethylene glycol chemical reduction method was employed to synthesize CuS–Cu2S nanoparticles from single source copper thiourea complex for removal of persistent organic dyes.
Umair Shamraiz   +4 more
doaj   +1 more source

Etching and Doping of Pores in Polyethylene Terephthalate Analyzed by Ion Transmission Spectroscopy and Nuclear Depth Profiling. [PDF]

open access: yesMembranes (Basel), 2022
Ceccio G   +7 more
europepmc   +1 more source

Electron Transmission Spectroscopy in Atomic Hydrogen

open access: yesPhysical Review Letters, 1972
An electron transmission experiment is used to study the resonances in the total scattering cross section of atomic hydrogen below the threshold of the first excited state. The three lowest resonances, designated $^{1}S$, $^{3}P$, and $^{1}D$, are observed and their energies and decay widths are found to be in good agreement with the values predicted ...
Sanche, L., Burrow, Paul
openaire   +2 more sources

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

open access: yesAdvanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier   +17 more
wiley   +1 more source

FTIR-ATR-based prediction and modelling of lignin and energy contents reveals independent intra-specific variation of these traits in bioenergy poplar [PDF]

open access: yes, 2011
Background: there is an increasing demand for renewable resources to replace fossil fuels. However, different applications such as the production of secondary biofuels or combustion for energy production require different wood properties. Therefore, high-
Polle, Andrea   +8 more
core   +1 more source

A theory of transmission spectroscopy of hydrodynamic outflows from planetary atmospheres: Spectral-line saturation and limits on mass-loss constraints

open access: yesAstronomy & Astrophysics
Transmission spectroscopy is a key technique in the characterization of exoplanet atmospheres and has been widely applied to planets undergoing hydrodynamic escape. While a robust analytic theory exists for transmission spectra of hydrostatic atmospheres,
Gkouvelis Leonardos
doaj   +1 more source

High Resolution Transmission Spectroscopy of Exoplanets

open access: yes, 2023
A large number of exoplanets has been observed in the last three decades, but still for most of them we know comparatively little about the atmospheres of these distant planets. This is of particular interest as there exist types of planets that don't have an analogy in our own solar system, like hot Jupiters or super Earths.
openaire   +2 more sources

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

open access: yesAdvanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai   +6 more
wiley   +1 more source

JWST/NIRCam Transmission Spectroscopy of the Nearby Sub-Earth GJ 341b

open access: yesThe Astronomical Journal
We present a JWST/Near Infrared Camera (NIRCam) transmission spectrum from 3.9 to 5.0 μ m of the recently validated sub-Earth GJ 341b ( R _P = 0.92 R _⊕ , T _eq = 540 K) orbiting a nearby bright M1 star ( d = 10.4 pc, K _mag = 5.6).
James Kirk   +19 more
doaj   +1 more source

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