Results 91 to 100 of about 755,430 (311)

Fourier Correlations of Dam Horizontal Movements Time Series [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2008
Time deformations monitoring of Drăgandam is done by physically methods (i.e. inversependulum) and topographically methods (i.e.optoelectronic). The two deformations measuringsystems, built up by these two methods, are different.The existence of ...
T. Modog, Alin C. Teuşdea
doaj  

Covalent Organic Frameworks for Water Sorption: The Importance of Framework Physical Stability

open access: yesAdvanced Functional Materials, EarlyView.
This study explores the water‐vapor stability of 2D covalent organic frameworks (COFs) with varying pore sizes. Results reveal microporous COFs demonstrate superior stability compared to mesoporous ones, despite lower water uptake. Mesoporous keto‐enamine‐linked COFs show enhanced stability due to intralayer hydrogen bonds, confirmed by simulations and
Wei Zhao   +13 more
wiley   +1 more source

On the resolution power of Fourier extensions for oscillatory functions

open access: yes, 2011
Functions that are smooth but non-periodic on a certain interval possess Fourier series that lack uniform convergence and suffer from the Gibbs phenomenon.
Ben Adcock   +5 more
core   +1 more source

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

open access: yesAdvanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul   +8 more
wiley   +1 more source

A Smart Bio‐Battery Facilitates Diabetic Bone Defect Repair Via Inducing Macrophage Reprogramming and Synergistically Modulating Bone Remodeling Coupling

open access: yesAdvanced Functional Materials, EarlyView.
This research presents a novel implantable bio‐battery, GF‐OsG, tailored for diabetic bone repair. GF‐OsG generates microcurrents in high‐glucose conditions to enhance vascularization, shift macrophages to the M2 phenotype, and regulate immune responses.
Nanning Lv   +10 more
wiley   +1 more source

Oscilador harmônico: Uma análise via séries de Fourier

open access: yesRevista Brasileira de Ensino de Física
O método de séries de Fourier é usado para resolver a equação homogênea que governa o movimento do oscilador harmônico. Mostra-se que a solução geral do problema pode ser encontrada com surpreendente simplicidade para o caso do oscilador harmônico ...
A. S. de Castro
doaj   +1 more source

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