Results 81 to 90 of about 52,973 (251)

Bagous frit

open access: yes, 2017
Published as part of ROBERTO CALDARA, CHARLES W. O'BRIEN & MASSIMO MEREGALLI, 2017, A phylogenetic analysis of the aquatic weevil tribe Bagoini (Coleoptera: Curculionidae) based on morphological characters of adults, pp.
ROBERTO CALDARA   +2 more
openaire   +2 more sources

High temperature glass thermal control structure and coating [PDF]

open access: yes, 1983
A high temperature stable and solar radiation stable thermal control coating is described which is useful either as such, applied directly to a member to be protected, or applied as a coating on a re-usable surface insulation (RSI).
Goldstein, H. E.   +2 more
core   +1 more source

Archeo‐Inspiration from the Cultural History of Glass: Historic Accounts, Anecdotes and Hard Facts as Challenges to Modern Material Science

open access: yesAdvanced Materials, Volume 38, Issue 16, 17 March 2026.
Glass, historically valued for its purity and durability, has long inspired artists and societies. This article introduces the concept of “Archeo‐Inspiration”, drawing on cultural and historical contexts of glass to guide future material innovations.
Eva von Contzen   +3 more
wiley   +1 more source

Surface Functionalization of Si Nanoparticles by Hydrosilylation: Access to High‐Performance Si Anodes for Li‐Ion Batteries

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
Surface‐functionalized SiNPs are synthesized by a simple and scalable hydrosilylation method using 4‐vinylpyridine (4VP), 1‐vinyl‐2‐pyrrolidinone (1V2P), and acrylic acid (AA). The Si‐4VP‐based Li‐ion cells achieved a promising long life of 300 cycles, retaining 60% of the initial capacity (2375 mAh g−1).
Sadananda Muduli   +3 more
wiley   +1 more source

Virunga National Park, the heart of darkness as UNESCO World Heritage

open access: yesContinents manuscrits, 2018
The article outlines some of the historical traces for the eco-crisis that presently threatens the first and most outstanding national park in Africa, homeland of the mountain gorilla.
Frits Andersen
doaj   +1 more source

Gauss congruences for rational functions in several variables

open access: yes, 2017
We investigate necessary as well as sufficient conditions under which the Laurent series coefficients $f_{\boldsymbol{n}}$ associated to a multivariate rational function satisfy Gauss congruences, that is $f_{\boldsymbol{m}p^r} \equiv f_{\boldsymbol{m}p^{
Beukers, Frits   +2 more
core   +1 more source

Similarities and Differences Between CO2 Reduction and Electro‐Hydrogenation of Organic Carbonyls with Fe Porphyrins: A Case Study

open access: yesChemElectroChem, Volume 13, Issue 5, March 2026.
Iron(III) tetraphenylporphyrins are well‐known for CO2 reduction with trifluoroethanol (TFE) as a proton source, posing the question if they also enable closely related electrochemical hydrogenation of organic carbonyls. This work evaluates mechanistic aspects and selectivity differences between the substrates CO2, acetone, and propionaldehyde in a ...
Tianyin Huang   +3 more
wiley   +1 more source

Constraint-Based Categorial Grammar

open access: yes, 1994
We propose a generalization of Categorial Grammar in which lexical categories are defined by means of recursive constraints. In particular, the introduction of relational constraints allows one to capture the effects of (recursive) lexical rules in a ...
Bouma, Gosse, van Noord, Gertjan
core   +1 more source

Structured Macroporous SiC‐LaNiO3 Catalysts for Hydrogen Production via Visible‐Light Glycerol Photoreforming

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 8, Issue 2, March 2026.
Structured macroporous SiC foams functionalized with LaNiO3 perovskite enable visible‐light photoreforming of glycerol into hydrogen, achieving a 59% increase in activity over bare SiC. The hybrid catalyst combines robust architecture, high light absorption, and sustainable manufacturing, demonstrating an efficient method for solar‐driven hydrogen ...
Ana Lucia de Souza Niero   +3 more
wiley   +1 more source

Lattice Stiffening and Delayed Fluorescence in Columnar Liquid‐Crystalline Glasses

open access: yesChemPlusChem, Volume 91, Issue 3, March 2026.
If the substitution pattern is well‐chosen, semiflexible triaryltriazine esters form glassy columnar liquid crystals whose column lattice distinctively shrinks at the glass transition. The presence of columnar liquid‐crystalline order is found to favor delayed fluorescence by triplet–triplet annihilation.
Monike da Silva Kutz   +6 more
wiley   +1 more source

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