Results 71 to 80 of about 8,933,474 (280)
IEEE Access, 2019 We propose a novel feature fusion based multi-task convolutional neural network (ConvNet) for simultaneous bit-rate and modulation format identification (BR-MFI) and optical performance monitoring (OPM) in heterogeneous fiber-optic networks. The proposed
Xiaojie Fan +8 more
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A Quantitative Lithium Inventory Framework for Anode‐Free Lithium Metal Batteries
Advanced Energy Materials, EarlyView.A component‐resolved lithium inventory framework quantitatively tracks Li redistribution across the cell in anode‐free NMC622||Cu pouch cells throughout cycling. Three sequential degradation stages are identified: formation‐driven cathode Li depletion, midlife inactive Li0 accumulation, and late‐stage runaway SEI thickening. The cathode, as the sole Li
Wurigumula Bao +9 more
wiley +1 more source
Angewandte Chemie, EarlyView.The successful extension of the nickel‐catalyzed asymmetric coupling of polarized 1,3‐dienes with aldehydes to an intramolecular setting opens an efficient new entry into hydroxylated N‐heterocyclic compounds, most notably valuable tetrahydroisoquinolines.
Thilo Bender +3 more
wiley +2 more sources
Z2-symmetric planar polynomial Hamiltonian systems of degree 3 with nilpotent centers
Electronic Journal of Differential Equations, 2019 We provide the normal forms of all $\mathbb{Z}_2$-symmetric planar polynomial Hamiltonian systems of degree 3 having a nilpotent center at the origin.
Fabio Scalco Dias +2 more
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Mathematical modeling of the effect of early detection in breast cancer treatment
Frontiers in OncologyIntroductionEarly detection is a cornerstone of cancer control, yet its quantitative influence on tumor–immune interactions remains underexplored in mathematical oncology.MethodsWe formulated a nonlinear tumor–immune interaction model consisting of two ...
Farouk Tijjani Saad +4 more
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New sufficient conditions for a center and global phase portraits for polynomial systems
Publicacions Matemàtiques, 1996 The authors consider a system \[ x'=P(x,y),\quad y'=Q(x,y), \] where \(P,Q\) are polynomials in \(x,y\). They study the function \(1/M(x,y)\) (where \(M\) is an integrating factor for the system) to find new explicit conditions under which the system has a center. For cubic systems, global phase portraits in the case of center existence are described.
Giacomini, H., Ndiaye, M.
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Global phase portraits of Kukles differential systems with homogenous polynomial nonlinearities of degree 5 having a center [PDF]
Topological Methods in Nonlinear Analysis, 2016 We provide 22 different global phase portraits in the Poincaré disk of all centers of the so called Kukles polynomial differential systems of the form ẋ = -y, ẏ = x + Q5(x, y), where Q5 is a real homogeneous polynomial of degree 5 defined in R2.
Llibre, Jaume +1 more
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Advanced Energy Materials, EarlyView.This review looks at the different experimental techniques that measure spatiotemporal charge carrier dynamics. This information is viewed in the context of particulate photocatalysts, outlining the insights these techniques provide and how they advance our understanding.
Sutripto Khasnabis, Robert Godin
wiley +1 more source