Results 181 to 190 of about 780,260 (354)

Continuity of metric projections in uniformly convex and uniformly smooth Banach spaces

open access: yesJournal of Approximation Theory, 1983
AbstractThe continuity of the metric projection onto an approximatively compact set in a uniformly convex and uniformly smooth Banach space is investigated. An explicit modulus of continuity for the metric projection which depends on the directional radius of curvature at a certain point of the set is obtained.
openaire   +2 more sources

Confining Surface Oxygen Redox in Double Perovskites for Enhanced Oxygen Evolution Reaction Activity and Stability

open access: yesAdvanced Energy Materials, EarlyView.
The double perovskite BaSrNiWO6 is developed as an oxygen evolution reaction catalyst. B‐site W6+ dissolution drives in situ reconstruction of the surface to a disordered, NiO‐like layer. Consequently, local oxygen species are activated for a surface lattice oxygen evolution mechanism (sLOEM).
Natasha Hales   +12 more
wiley   +1 more source

Determining Exciton Diffusion Length in Organic Semiconductors: Unifying Macro‐ and Microscopic Perspectives

open access: yesAdvanced Energy Materials, EarlyView.
Exciton diffusion length in organic semiconductor films is determined from encounter/annihilation rates. Non‐normalized exciton densities and proper intrinsic lifetime reference avoid over‐parametrization of the fits. Monte Carlo Simulation of individual molecule‐to‐molecule hops reproduce these results (②) when matching lattice constant and hoping ...
Wenchao Yang   +12 more
wiley   +1 more source

Interface Topology and Wetting Dynamics of Laser‐Induced Bonds Between Aluminum Foil and Silicon Nitride Passivation in Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
Metallization in photovoltaics faces challenges due to silver dependency. This study explores Laser Metal Bonding (LMB), an ultra‐rapid, ablation‐free process enabling robust aluminum‐to‐silicon nitride connections while preserving passivation layers and cell efficiency. Combining experiments and simulations, key adhesion mechanisms, thermal thresholds,
Oliver John   +4 more
wiley   +1 more source

Regularization proximal point algorithm for finding a common fixed point of a finite family of nonexpansive mappings in Banach spaces

open access: yesFixed Point Theory and Applications, 2011
We study the strong convergence of a regularization proximal point algorithm for finding a common fixed point of a finite family of nonexpansive mappings in a uniformly convex and uniformly smooth Banach space.
Tuyen Truong, Kim Jong
doaj  

Technological change, capital deepening, and agricultural total factor productivity (TFP) growth: Cross‐country comparison of 18 OECD countries

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract This paper employs the data envelope analysis (DEA) to assess technological progress and its impact on agricultural total factor productivity (TFP) across 18 the Organization for Economic Cooperation and Development (OECD) countries from 1973 to 2015.
Yu Sheng
wiley   +1 more source

Recent Progress in Silver Nanowire‐Based Transparent Conductive Electrodes

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This work has reviewed silver nanowire‐based transparent conductive electrodes in terms of synthesis strategies, device fabrication processes, composition engineering, and property tailoring for flexible electronic applications. The developments of silver nanowire‐based platforms in sensors, solar cells, electronic skin, electromagnetic shielding ...
Jintao Wang   +5 more
wiley   +1 more source

Frechet differentiability of the metric projection operator in Banach spaces [PDF]

open access: yesarXiv
In this paper, we prove Frechet differentiability of the metric projection operator onto closed balls, closed and convex cylinders and positives cones in uniformly convex and uniformly smooth Banach spaces. With respect to these closed and convex subsets, we find the exact expressions for Frechet derivatives and Gateaux directional derivatives of the ...
arxiv  

BERGMANN AND HARDY SPACES AND CONJUGATE OF THEM

open access: yesВестник Донского государственного технического университета, 2018
It is proved that  space is strongly notmed, and  is neither strongly notmed, nor uniformly convex. A standard form of the linear functionals over  space and over metric spaces of  0 < p £ 1, is determined.
Galina Y. Ryabykh, Vladimir G. Ryabykh
doaj  

Process Resilience under Optimal Data Injection Attacks

open access: yesAIChE Journal, EarlyView.
Abstract In this article, we study the resilience of process systems in an information‐theoretic framework, from the perspective of an attacker capable of optimally constructing data injection attacks. The attack aims to distract the stationary distributions of process variables and stay stealthy, simultaneously.
Xiuzhen Ye, Wentao Tang
wiley   +1 more source

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