Results 41 to 50 of about 3,731,129 (307)
Influence of thermal activation of natural pozzolan on the mechanical behavior of cement pastes
Journal of Materials and Engineering Structures, 2022 This experimental work focused on the thermal activation of natural pozzolan (NP) from the town of Beni-Saf, in order to improveits reactivity. The present study consists of using natural pozzolan as partial replacement of ordinary Portland cement, with ...
souad MECHEBEK +2 more
doaj
Active thermal extraction of near-field thermal radiation
Physical Review B, 2016 Radiative heat transport between materials supporting surface-phonon polaritons is greatly enhanced when the materials are placed at sub-wavelength separation as a result of the contribution of near-field surface modes. However, the enhancement is limited to small separations due to the evanescent decay of the surface waves.
Ding, D., Kim, T., Minnich, A. J.
openaire +4 more sources
, 2018 Chalcones α-β-unsaturated ketones are found in large plant species. Synthesis of chalcones and its three analogues hydroxy group at 2′, 3′ and 4′ positions (2–4) was carried out.
Leonardo Miziara Barboza Ferreira +16 more
core +1 more source
Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential
FEBS Letters, EarlyView.Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta +3 more
wiley +1 more source
CeramicsThis in vitro study evaluated the effect of two silane coupling agent application techniques (dry air and thermally activated warm air) on the interfacial properties and shear bond strength (SBS) of lithium disilicate veneers fabricated with two designs:
Yar Mohammed +1 more
doaj +1 more source
Enhancement Experiment on Cementitious Activity of Copper-Mine Tailings in a Geopolymer System
Fibers, 2017 Copper-mine tailings are the residual products after the extraction of precious copper metal from copper ores, and their storage can create numerous environmental problems.
Lin Yu +4 more
doaj +1 more source
Approaching microwave photon sensitivity with Al Josephson junctions
Beilstein Journal of Nanotechnology, 2022 Here, we experimentally test the applicability of an aluminium Josephson junction of a few micrometers size as a single photon counter in the microwave frequency range.
Andrey L. Pankratov +5 more
doaj +1 more source
Structure and stability of flames with two sequential reactions [PDF]
, 1985 An asymptotic analysis is presented for the structure of steady planar flames, and for their response to nonplanar perturbations, when the reaction mechanism can be modelled by two sequential reactions with the same large value of activation energies ...
Peláez Álvarez, Jesús +1 more
core
Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation
FEBS Letters, EarlyView.Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang +2 more
wiley +1 more source
Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach
Condensed Matter Physics, 2010 The phase transitions in the Bose-Fermi-Hubbard model are investigated. The boson Green's function is calculated in the random phase approximation (RPA) and the formalism of the Hubbard operators is used.
I.V. Stasyuk +2 more
doaj +1 more source