Results 61 to 70 of about 35,764 (255)

Role of density inhomogeneity in dissipative collapse through Finch-Skea spacetime in f(R) gravity

Nuclear Physics B
This study investigates the dynamics of dissipative gravitational collapse within the framework of f(R) gravity, focusing on the exponential correction model f(R)=R−β1Rs(1−e−R/Rs) and incorporating the concept of a horizon function. The model considers a
M. Ilyas, Zaib Un Nisa Shinwari, Fawad Khan, Sidra Marwat   +3 more
doaj   +1 more source

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

Advanced 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, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Stable Protein‐Based G‐Quadruplex‐Derived Supramolecular Bioinks as Tunable ECM‐Mimetic Constructs Assembled by Combining Non‐Covalent and Covalent Strategies

Advanced Materials, EarlyView.
Harnessing the synergistic interplay of supramolecular self‐assembly, under macromolecular crowding conditions, and enzymatic‐mediated covalent crosslinking toward a stable protein‐based G‐quadruplex‐derived supramolecular bioink. This bioinspired strategy enables the biofabrication of complex and tunable ECM‐mimetic constructs, providing a platform ...
Vera Sousa, Rita Sobreiro‐Almeida, Bart W. L. van den Bersselaar, E. W. Meijer, Ghislaine Vantomme, João Borges, João F. Mano   +6 more
wiley   +1 more source

Dilaton black hole entropy from entropy function formalism

European Physical Journal C: Particles and Fields, 2019
It has been shown that the entropy function formalism is an efficient way to calculate the entropy of black holes in string theory. We check this formalism for the extremal charged dilaton black hole. We find the general four-derivative correction on the
Komeil Babaei Velni, Ali Jalali, Bahareh Khoshdelan   +2 more
doaj   +1 more source

String theory at order α′ 2 and the generalized Bergshoeff-de Roo identification

Journal of High Energy Physics, 2021
It has been shown by Marques and Nunez that the first α′-correction to the bosonic and heterotic string can be captured in the O(D, D) covariant formalism of Double Field Theory via a certain two-parameter deformation of the double Lorentz ...
Stanislav Hronek, Linus Wulff
doaj   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Holographic corrections to the Veneziano amplitude

Physics Letters B, 2017
We propose a holographic computation of the 2→2 meson scattering in a curved string background, dual to a QCD-like theory. We recover the Veneziano amplitude and compute a perturbative correction due to the background curvature.
Adi Armoni, Edwin Ireson
doaj   +1 more source

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

Roughening and dynamics of an electric flux string in a (2+1)D lattice gauge theory

Communications Physics
We investigate the roughening transition of an electric flux string between two static charges in a $${{\mathbb{Z}}}_{2}$$ Z 2 lattice gauge theory in (2+1) dimensions. This transition is compelling because of its relation to the continuum limit. However,
Francesco Di Marcantonio, Sunny Pradhan, Sofia Vallecorsa, Mari Carmen Bañuls, Enrique Rico Ortega   +4 more
doaj   +1 more source

Anatomy, geometry, and radio repairmen: The mathematics of flawed fretted instruments

上海师范大学学报. 自然科学版, 2015
Fretted string instruments play out of tune; luthiers1 and technicians generally adjust or design the instruments to be in tune when played open and at the 12th fret.
KEVIN Greimel, JOYATI Debnath
doaj   +1 more source