Results 151 to 160 of about 698,026 (317)
Advanced Science, EarlyView.A diffusion‐controlled interfacial polymerization strategy incorporating poly(allylamine) (PAA) into piperazine (PIP) solution enables precise tuning of amine monomer diffusion and polyamide (PA) network formation with trimesoyl chloride (TMC). The resulting nanofiltration membranes exhibit crumpled morphology, appropriate surface charge, and enhanced ...
Shaofan Duan +11 more
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Some remarks on a class of eigenvalue problems with special boundary conditions [PDF]
, 1953 Glenn Morgan
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Advanced Science, EarlyView.A stretchable OLED fiber display is developed by introducing a novel robust, conductive, and deformable via (RCD‐via) that maintains electrical and mechanical integrity under strain. Through scalable integration and mechanical design, the display operates reliably even during stretching, offering a promising strategy for truly wearable textile ...
Yong Ha Hwang +2 more
wiley +1 more source
The Rayleigh-Ritz and the Weinstein Methods for Approximation of Eigenvalues [PDF]
, 1948 N. Aronszajn
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Water‐Wave Pancharatnam‐Berry Phase Induced by 4D Spin‐Orbit State Evolution
Advanced Science, EarlyView.The first observation of the Pancharatnam‐Berry (PB) phase in water waves is reported, revealing its extraordinary properties including unbounded phase values, spin‐momentum‐locked unidirectional channels, and a Poincaré hypersphere representation. These findings demonstrate the universality of the PB phase across different wave systems and in higher ...
Wanyue Xiao +3 more
wiley +1 more source
Advanced Science, EarlyView.We show that solutal Marangoni flows in thin films climbing the outer surfaces of hydrophilic obstacles break circular Belousov‐Zhabotinsky waves into striking flower‐like patterns. Evaporation‐driven surface‐tension gradients, coupled with gravity, trigger the instability; above a threshold, petal number scales linearly with obstacle diameter ...
Sangram Gore +9 more
wiley +1 more source
Nanoscopic Mapping of the Extracellular Space in Amyloid Plaque‐rich Cortex
Advanced Science, EarlyView.The extracellular space and diffusion around amyloid plaques are examined using shadow imaging and single‐particle tracking. Increased diffusivity is found near plaques, extracellular matrix alterations, and plaque core penetrability that varies with amyloid phenotype.
Juan Estaún‐Panzano +11 more
wiley +1 more source
Spectral Properties of the Laplace Operator with Variable Dependent Boundary Conditions in a Disk
AxiomsIn this work, we study the spectral properties of the Laplace operator with variable dependent boundary conditions in a disk. The boundary conditions include periodic and antiperiodic boundary conditions as well as the generalized Samarskii–Ionkin-type ...
Aishabibi Dukenbayeva, Makhmud Sadybekov
doaj +1 more source
An eigenvalue problem possessing a continuous family of eigenvalues plus an isolated eigenvalue
Communications on Pure and Applied Analysis, 2010 In this paper we analyze an eigenvalue problem, involving a homogeneous Neumann boundary condition, in a smooth bounded domain. We show that the problem possesses, on the one hand, a continuous family of eigenvalues and, on the other hand, exactly one more eigenvalue which is isolated in the set of eigenvalues of the problem.
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