Results 141 to 150 of about 1,548,951 (374)

How the Arrangement of Platinum Atoms on Ruthenium Nanoparticles Improves Hydrogen Evolution Activity

open access: yesAdvanced Materials, EarlyView.
A synthetic strategy for the formation of Pt islands and their transformation into Pt atomic strings on Ru nanoparticle surfaces is presented. The thermodynamically favored configuration of Pt strings on Ru catalyst is demonstrated to catalyze HER via the faster Volmer–Tafel pathway with a significantly improved intrinsic activity, owing to the well ...
Qinyu Li   +15 more
wiley   +1 more source

O(D, D) gauge fields in the T-dual string Lagrangian

open access: yesJournal of High Energy Physics, 2019
We present the string Lagrangian with manifest T-duality. Not only zero-modes but also all string modes are doubled. The gravitational field is an O(D, D) gauge field.
Machiko Hatsuda, Warren Siegel
doaj   +1 more source

Dirichlet-Branes and Ramond-Ramond Charges [PDF]

open access: yes, 1995
We show that Dirichlet-branes, extended objects defined by mixed Dirichlet-Neumann boundary conditions in string theory, break half of the supersymmetries of the type~II superstring and carry a complete set of electric and magnetic Ramond-Ramond charges.
A. Sagnotti   +25 more
core   +2 more sources

Biomolecular Condensates as Emerging Biomaterials: Functional Mechanisms and Advances in Computational and Experimental Approaches

open access: yesAdvanced Materials, EarlyView.
Integration of computational and experimental approaches for deciphering the underlying mechanism of biomolecular condensates and potential biomaterials design (Created in Biorender. Raza, Z. (2025) https://BioRender.com/irgmeqi). Abstract Biomolecular condensates, a ubiquitous class of biomaterials found in living cells, have been shown to be ...
Qiang Zhu   +10 more
wiley   +1 more source

The complex Liouville string: Worldsheet boundaries and non-perturbative effects

open access: yesSciPost Physics
We investigate general observables of the complex Liouville string with worldsheet boundaries. We develop a universal formalism that reduces such observables to ordinary closed string amplitudes without boundaries, applicable to any worldsheet string ...
Scott Collier, Lorenz Eberhardt, Beatrix Mühlmann, Victor A. Rodriguez
doaj   +1 more source

From Gauge-string duality to strong interactions: A Pedestrian's guide [PDF]

open access: yes, 2009
We survey recent progress in relating string theory to quantum chromodynamics (QCD), focusing on (a) holographic models of gauge theories that are similar to QCD and (b) applications to heavy-ion collisions.
S. Gubser, A. Karch
semanticscholar   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

One-loop monodromy relations on single cuts

open access: yesJournal of High Energy Physics, 2017
The discovery of colour-kinematic duality has led to significant progress in the computation of scattering amplitudes in quantum field theories. At tree level, the origin of the duality can be traced back to the monodromies of open-string amplitudes ...
Alexander Ochirov   +2 more
doaj   +1 more source

Poisson-Lie T-duality in Double Field Theory

open access: yesPhysics Letters B, 2020
We present a formulation of Double Field Theory with a Drinfeld double as extended spacetime. It makes Poisson-Lie T-duality (including abelian and non-abelian T-duality as special cases) manifest.
Falk Hassler
doaj   +1 more source

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