Results 61 to 70 of about 1,325 (293)
Precise Asymptotic Approximations for Kernels Corresponding to Lévy Processes [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jo, Sihun, Yang, Minsuk
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Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang +14 more
wiley +1 more source
Nonstationary Equations for the Reaction Layer with the Degenerate Equilibrium Points
We consider a nonstationary process of spreading some substance in a one-dimensional spatially inhomogeneous system of cells. It is assumed that a change in the concentration of \(u_n (t)\) in a cell with the number \(n\) with time \(t\) is ...
Aleksei A. Bykov, Kristina E. Ermakova
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On a conjecture of Gowers and Wolf
On a conjecture of Gowers and Wolf, Discrete Analysis 2022:10, 13 pp. Szemerédi's theorem asserts that for every $\delta>0$ and every positive integer $k$ there exists $n$ such that every subset $A$ of $\{1,2,\dots,n\}$ of size at least $\delta n ...
Daniel Altman
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A note to the convergence rates in precise asymptotics [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment
ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud +31 more
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This study establishes a dual‐channel optical metrology framework integrating phase‐shifting imaging ellipsometry and deep‐UV reflectance imaging. This label‐free approach enables simultaneous, time‐resolved mapping of film thickness and nanoparticle (NP) concentration in dynamic nanofluid thin films.
Eita Shoji +3 more
wiley +1 more source
A result on precise asymptotics for largest eigenvalues of β ensembles [PDF]
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Xie, Junshan, Zhao, Jing
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ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel +4 more
wiley +1 more source
High-dimensional variable selection with heterogeneous signals: A precise asymptotic perspective [PDF]
Saptarshi Roy, Ambuj Tewari, Ziwei Zhu
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