Results 191 to 200 of about 1,507,877 (336)

Comparison of two infiltration equations with three‐terms expansions consistent with the approach of Philip theory

open access: yesIrrigation and Drainage, EarlyView.
Abstract In this study, the approximate three‐term (3 T) one‐dimensional (1D) vertical infiltration equation by Valiantzas (3 T‐V) and the 3 T approximate infiltration equation of the quasi‐exact implicit (QEI) Haverkamp equation (3T‐R) by Rahmati et al. for both direct and inverse modelling of water infiltration into soils were evaluated.
George Kargas   +3 more
wiley   +1 more source

Conformation control of triplet state diffusion in platinum containing polyfluorene copolymers

open access: yesJournal of Polymer Science, Volume 61, Issue 1, Page 83-93, 1 January 2023., 2023
Abstract The spectral diffusion of singlet and triplet excitons in 9,9‐dioctylfluorene‐based conjugated copolymers is investigated using photoluminescence spectroscopy at both low (5 K) and room temperature (300 K). Inclusion of a N,N‐diphenyl‐4‐(pyridin‐2‐yl)aniline moiety into the polymer backbone allows subsequent cyclometalation with platinum ...
Nikol T. Lambeva   +6 more
wiley   +1 more source

Three‐Point Functions of Higher‐Spin Supercurrents in 4D N=1${{\cal N}}=1$ Superconformal Field Theory

open access: yesFortschritte der Physik, Volume 70, Issue 12, December 2022., 2022
Abstract We develop a general formalism to study the three‐point correlation functions of conserved higher‐spin supercurrent multiplets Jα(r)α̇(r)$J_{\alpha (r) \dot{\alpha }(r)}$ in 4D N=1${\cal N}=1$ superconformal theory. All the constraints imposed by N=1${\cal N}=1$ superconformal symmetry on the three‐point function ⟨Jα(r1)α̇(r1)Jβ(r2)β̇(r2)Jγ(r3)
Evgeny I. Buchbinder   +2 more
wiley   +1 more source

Conformal Interactions Between Matter and Higher‐Spin (Super)Fields

open access: yesFortschritte der Physik, Volume 71, Issue 1, January 2023., 2023
Abstract In even spacetime dimensions, the interacting bosonic conformal higher‐spin (CHS) theory can be realised as an induced action. The main ingredient in this definition is the model S[φ,h]$\mathcal {S}[\varphi ,h]$ describing a complex scalar field φ coupled to an infinite set of background CHS fields h, with S[φ,h]$\mathcal {S}[\varphi ,h ...
Sergei M. Kuzenko   +2 more
wiley   +1 more source

Putatively Optimal Projective Spherical Designs With Little Apparent Symmetry

open access: yesJournal of Combinatorial Designs, EarlyView.
ABSTRACT We give some new explicit examples of putatively optimal projective spherical designs, that is, ones for which there is numerical evidence that they are of minimal size. These form continuous families, and so have little apparent symmetry in general, which requires the introduction of new techniques for their construction.
Alex Elzenaar, Shayne Waldron
wiley   +1 more source

Modulated Harmonic Wave in Series‐Connected Discrete Josephson Transmission Line: The Discrete Calculus Approach

open access: yesphysica status solidi (b), Volume 260, Issue 1, January 2023., 2023
The modulated harmonic wave in the discrete series‐connected Josephson transmission line (JTL) is considered and the equation describing the modulation amplitude is obtained. The equation turns out to be the defocusing nonlinear Schrödinger equation. The most interesting result following the calculations is the existence of the dark solitons in the JTL.
Eugene Kogan
wiley   +1 more source

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