Results 41 to 50 of about 2,347 (133)
Advanced Engineering Materials, Volume 28, Issue 15, 5 August 2026.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes
Advanced Materials, Volume 38, Issue 43, 3 August 2026.A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang +11 more
wiley +1 more source
Photo‐ and Thermally‐Induced Huge Layer Decoupling in Twisted Bilayer WSe2
Advanced Materials, Volume 38, Issue 45, 13 August 2026.A newly developed automated dark‐field tomography visualizes twist‐angle‐dependent structural relaxation and quantifies 3D structures in twisted bilayer WSe2. This approach reveals the evolution of local stacking configurations, thermally induced sub‐ångström interlayer decoupling, and light‐driven interlayer expansion on picosecond timescales ...
A. Nakamura +10 more
wiley +1 more source
Colossal Photovoltaic Current in Ferroelectric Oxide by Constructing Defect Band
Advanced Science, Volume 13, Issue 48, 28 August 2026.Colossal photovoltaic current density of 34.36 mA/cm2 under 375 nm illumination has been achieved in the Pb‐deficient PbTiO3 film. The ultraviolet photoresponsivity surpasses that of all reported ferroelectric materials. This enhancement is attributed to the junction effect between the Pb‐deficient and non‐defective layers.
Yiran Sun +16 more
wiley +1 more source
ϕK^{+}K^{-} production in electron-positron annihilation
, 2007 In this work we study the e^{+}e^{-}\toϕK^{+}K^{-} reaction. The leading order electromagnetic contributions to this process involve the γ*ϕ K^{+}K^{-} vertex function with a highly virtual photon. We calculate this function at low energies using RχPT supplemented with the anomalous term for the VV'P interactions.
Gómez Avila, Selim +2 more
openaire +3 more sources
Electron-Positron Annihilation and the Structure of Hadrons [PDF]
, 1975 The last two months have been very exciting ones in elementary particle physics. They have been filled with the most rapid and unexpected discoveries that I can recall. The highlight of this period is undoubtedly the finding of very narrow boson resonances, 1–4 the ψ’s at 3.1 and 3.7 GeV.
openaire +1 more source
Integrated anti-electronics for positron annihilation spectroscopy
Scientific ReportsAbstract Imaging the features of a sample using Positron Annihilation Spectroscopy (PAS) is currently achieved by rastering, i.e. by scanning the sample surface with a sharply focused positron beam. However, a beam of arbitrary shape (sculpted beam) would allow the application of more versatile single-pixel ...
openaire +4 more sources
CAUSES OF ELECTRON AND POSITRON ANNIHILATION
International Journal of Applied and Fundamental Research (Международный журнал прикладных и фундаментальных исследований), 2023 A.V. Karyakin, I.V. Karyakina
openaire +1 more source