Results 171 to 180 of about 509,978 (288)

Impact of A‐Site Sr Substitution in LaFeO3 on Syngas Selectivity During Chemical Looping Dry Reforming of Methane (CL‐DRM)

open access: yesChemistry – A European Journal, EarlyView.
Sr doping regulates oxygen exchange and methane activation in LaFeO3, suppressing nonselective CH4 cracking and coke formation during CL‐DRM. La0.7Sr0.3FeO3 provides the optimal balance, delivering ∼40% CH4 conversion, an H2/CO ratio of 2, and >95% carbon balance.
Ganesh Jabotra   +8 more
wiley   +1 more source

Application of artificial neural network and general machine learning modelling on CO2 adsorption in moisture equilibrated South African high and medium rank coals

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the effect of moisture on CO2 adsorption in South African coals using both experimental and machine learning approaches. Three coal samples (SL, TN, and EM) with varying ranks (RoVmr: 3.49%, 1.26%, and 0.64%, respectively) were collected from different regions of South Africa.
Kasturie Premlall   +3 more
wiley   +1 more source

Power spectral density and the brain

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Time series from M/EEG (magneto/electroencephalography) and ECoG (electrocorticography) recordings are common sources of information about brain function. The power spectral density (PSD) preserves much of this information, up to second order. In the current decade, a burst of brain diagnostics using the slope of log(PSD) has appeared.
Priscilla E. Greenwood   +2 more
wiley   +1 more source

The Epidemiological and Economic Burden of Vaccine-Preventable Respiratory Diseases Among Adults Aged 65 Years and Older in the Nordic Countries. [PDF]

open access: yesVaccines (Basel)
Reinstrup NW   +6 more
europepmc   +1 more source

Lasso for hierarchical polynomial models

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract The divisibility conditions implicit in a polynomial hierarchy suggest parameter constraints in regression. With this idea, we establish strong and weak hierarchies for both the lasso and relaxed lasso. Our proposal extends prior work on hierarchical lasso, which was mainly concerned with models of degree 2.
H. Maruri‐Aguilar, S. Lunagómez
wiley   +1 more source

Author Correction: Non-invasive measurement of accelerated gastrointestinal transit in pediatric patients using Contrast-enhanced Multispectral optoacoustic tomography. [PDF]

open access: yesNpj Imaging
Caselitz L   +10 more
europepmc   +1 more source

Vom Fällungsversuch zum Leuchtstoff: Ein einfacher Weg zu lumineszierenden ZnS:Mn‐Nanopartikeln für den Chemieunterricht

open access: yesCHEMKON, EarlyView.
In diesem Beitrag wird ein einfach durchführbares Experiment zur nasschemischen Herstellung von mangan‐dotierten Zinksulfid‐Nanopartikeln vorgestellt, das gezielt für den Einsatz in der gymnasialen Oberstufe konzipiert wurde. Durch die Fällungsreaktion von Zinksulfid in Gegenwart von Mn2+‐Ionen entstehen kolloidale Nanopartikel, die eine ...
Daniel Becker, Lars Otte, Marco Beeken
wiley   +1 more source

Lars Chittka [PDF]

open access: yesCurrent Biology, 2010
openaire   +1 more source

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