Results 31 to 40 of about 265 (113)

Effect of Size and Shape on Electrochemical Performance of Nano-Silicon-Based Lithium Battery

open access: yesNanomaterials, 2021
Silicon is a promising material for high-energy anode materials for the next generation of lithium-ion batteries. The gain in specific capacity depends highly on the quality of the Si dispersion and on the size and shape of the nano-silicon.
Caroline Keller   +9 more
doaj   +1 more source

A Predesign Methodology for Power Electronics Based on Optimization and Continuous Models: Application to an Interleaved Buck Converter

open access: yesDesigns, 2022
This paper proposes an approach dedicated to power electronics preliminary design. It consists in setting the optimization problem in an “imaginary” world by considering all decision variables to be continuous.
Mylène Delhommais   +4 more
doaj   +1 more source

ASTROMETRY WITH THEHUBBLE SPACE TELESCOPE: TRIGONOMETRIC PARALLAXES OF PLANETARY NEBULA NUCLEI NGC 6853, NGC 7293, ABELL 31, AND DeHt 5 [PDF]

open access: yesThe Astronomical Journal, 2009
To appear in the Astronomical ...
Benedict, G. Fritz   +8 more
openaire   +3 more sources

The physical structure of planetary nebulae around sdO stars: Abell 36, DeHt 2, and RWT 152★ [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
We present narrow-band Halpha and [OIII] images, and high-resolution, long-slit spectra of the planetary nebulae (PNe) Abell36, DeHt2, and RWT152 aimed at studying their morphology and internal kinematics. These data are complemented with intermediate-resolution, long-slit spectra to describe the spectral properties of the central stars and nebulae ...
Aller, A.   +7 more
openaire   +3 more sources

Plasticizers as Microplastics Tracers in Tunisian Marine Environment

open access: yesFrontiers in Marine Science, 2020
The new knowledge on the bio-transformations to which the plastic material is subjected, raise concerns about their role as environmental contaminants.
Enrico Gugliandolo   +9 more
doaj   +1 more source

Our Deht to German Theology [PDF]

open access: yesThe Expository Times, 1892
n ...
openaire   +2 more sources

Multiscale characterization of a lithium/sulfur battery by coupling operando X-ray tomography and spatially-resolved diffraction

open access: yesScientific Reports, 2017
Due to its high theoretical specific capacity, the lithium/sulfur battery is one of the most promising candidates for replacing current lithium-ion batteries.
Guillaume Tonin   +7 more
doaj   +1 more source

Easy Diameter Tuning of Silicon Nanowires with Low-Cost SnO2-Catalyzed Growth for Lithium-Ion Batteries

open access: yesNanomaterials, 2022
Silicon nanowires are appealing structures to enhance the capacity of anodes in lithium-ion batteries. However, to attain industrial relevance, their synthesis requires a reduced cost.
Caroline Keller   +6 more
doaj   +1 more source

Unraveling the Properties of Biomass-Derived Hard Carbons upon Thermal Treatment for a Practical Application in Na-Ion Batteries

open access: yesEnergies, 2020
Biomass is gaining increased attention as a sustainable and low-cost hard carbon (HC) precursor. However, biomass properties are often unexplored and unrelated to HC performance.
Carolina del Mar Saavedra Rios   +4 more
doaj   +1 more source

Conductivity vs functionalization in single-walled carbon nanotube films

open access: yesSN Applied Sciences, 2022
Diazo functionalization is a chemical method that changes the conductance of metallic single-walled carbon nanotubes (SWCNTs) by disrupting the C–C double bonds.
Mohammad Jouni   +5 more
doaj   +1 more source

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