Results 91 to 100 of about 31,156 (211)

Twisted Tin‐Chloride Perovskite Single‐Crystal Heterostructures

open access: yesAngewandte Chemie, Volume 138, Issue 5, 28 January 2026.
Replacing lead with tin in a single‐crystal halide perovskite heterostructure drives a twist between the perovskite (gray) and intergrowth (blue) layers. The accompanying structural distortions and interfacial strain change the calculated orbital composition of the band edges and enable high in‐plane optical anisotropy in the Sn analog.
Jamie L. Cleron   +10 more
wiley   +2 more sources

Existence of solutions to singular elliptic equations with convection terms via the Galerkin method

open access: yesElectronic Journal of Differential Equations, 2010
In this article, we use the Galerkin method to show the existence of solutions for the following elliptic equation with convection term $$ - Delta u= h(x,u)+lambda g(x, abla u) quad u(x)>0 quad ext{in } Omega, quad u=0 quad ext{on } partial Omega, $
Claudianor Oliveira Alves   +2 more
doaj  

An Organic Semiconductor Lasing Crystal Featuring Triplet‐Triplet Annihilation

open access: yesAggregate, Volume 7, Issue 2, February 2026.
An organic semiconductor crystal emitter of BH001 is reported to exhibit stimulated emission with the aid of triplet‐triplet annihilation (TTA). The crystal achieves low‐threshold blue laser emission (Pth = 15.4 µJ/cm2) under femtosecond pulsed laser excitation. Notably, stimulated emission persists even when pumped by nanosecond lasers, indicating its
Tianhao Tang   +11 more
wiley   +1 more source

Solar‐Blind Ultraviolet Photodetectors Based on Two‐Dimensional Materials and Their Heterostructures

open access: yesAdvanced Physics Research, Volume 5, Issue 2, February 2026.
Solar‐blind ultraviolet photodetectors are crucial for diverse applications. This review comprehensively summarizes recent advances using two‐dimensional materials and their heterostructures, which offer tunable bandgaps, flexibility, and no lattice‐matching constraints.
Yu Lu   +7 more
wiley   +1 more source

Dirichlet problem in one-dimensional billiard space with velocity dependent right-hand side

open access: yesLietuvos Matematikos Rinkinys
The paper brings multiplicity results for a Dirichlet problem in one-dimensional billiard space with right-hand side depending on the velocity of the ball, i.e. a problem in the form x'' = f(t, x, x')    if x(t) ∈ int K,       x'(t+) = -x'(t-)    if x(t)
Vĕra Krajščáková, Jan Tomeček
doaj   +3 more sources

Seismic Structural Response and Loss Estimation for Dense Urban Districts Using Neural Network Parameterized Gaussian Process

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 2, Page 397-412, February 2026.
ABSTRACT Earthquakes pose a major threat to urban areas, causing fatalities, injuries, and significant economic losses. This study proposes a Gaussian process parametrized by deep neural networks (DNN–GP) as an efficient surrogate for assessing seismic losses of building structures at a regional scale.
Byeongseong Choi   +2 more
wiley   +1 more source

Slab‐Mantle Interaction During Subduction Initiation: Constraints From Trace Element and Sr‐Nd‐Pb Isotope Systematics of Boninite and Other Magmas and Metamorphic Sole in the Oman Ophiolite

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract The Late Cretaceous Oman ophiolite includes a series of volcanic rocks generated during the transition from spreading ridge to protoarc associated with subduction initiation. We analyzed major and trace elements and Sr, Nd, and Pb isotope compositions of lavas and dikes of the protoarc stage, especially boninites. We also analyzed amphibolites
Tsuyoshi Ishikawa   +6 more
wiley   +1 more source

Convergence of Peaceman-Rachford splitting method with Bregman distance for three-block nonconvex nonseparable optimization

open access: yesDemonstratio Mathematica
It is of strong theoretical significance and application prospects to explore three-block nonconvex optimization with nonseparable structure, which are often modeled for many problems in machine learning, statistics, and image and signal processing.
Zhao Ying, Lan Heng-you, Xu Hai-yang
doaj   +1 more source

State-decomposition Distributed Dual Averaging Algorithm for Privacy Online ConstrainedOptimization over Directed Networks [PDF]

open access: yesJisuanji kexue
This paper investigates a class of distributed online constrained optimization problems with a common constraint set.In this setting,nodes in the network collaborate to solve the problem through local computation and communication.Each node can only ...
DAI Xiangguang, HE Chenglong, GUAN Mingyu, ZHANG Wei, ZHOU Yang, LIU Jianfeng, LYU Qingguo
doaj   +1 more source

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