Results 81 to 90 of about 274,060 (275)
Eventually positive solutions in rational difference equations
Computers & Mathematics with Applications, 2012 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Balibrea, Francisco, Cascales, Antonio
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Advanced Functional Materials, EarlyView.This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies +8 more
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Advanced Functional Materials, EarlyView.Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr +7 more
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On Rational Bubbles and Fat Tails [PDF]
This paper addresses the statistical properties of time series driven by rational bubbles a la Blanchard and Watson (1982). Using insights on the behavior of multiplicative stochastic processes, we demonstrate that the tails of the unconditional ...
Didier Sornette, Thomas Lux
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A coupled system of rational difference equations
Computers & Mathematics with Applications, 2002 For the solutions of \(x_{n+1}=x_n/(a+cy_n),\) \(y_{n+1}=y_n/(b+dx_n)\), \(n\in \mathbb N_0\), with positive \(a,b,c,d\) and non-negative \(x_0\), \(y_0\) the asymptotic behaviour and the global stability properties are investigated.
Clark, D., Kulenović, M. R.S.
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Advanced Functional Materials, EarlyView.The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich +6 more
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On the System of Nonlinear Rational Difference Equations
, 2013 {"references": ["M.P. Hassell and H.N. Comins, Discrete time models for two-species\ncompetition, Theoretical Population Biology, Vol. 9, no. 2,1976, pp.\n202\u2013221.", "J.E. Franke and A.A. Yakubu, Mutual exclusion versus coexistence for\ndiscrete competitive Systems, Journal of Mathematical Biology, Vol.30,\nno. 2,1991, pp.
Qianhong Zhang, Wenzhuan Zhang
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RATIONAL DIFFERENCE EQUATIONS WITH POSITIVE EQUILIBRIUM POINT [PDF]
Bulletin of the Korean Mathematical Society, 2010 In this note we study positive solutions of the mth order rational difference equation , where n = m,m+1,m+2, and > 0. We describe a sufficient condition on nonnegative real numbers under which every solution of the above equation tends to the limit /2B as , where and .
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Advanced Functional Materials, EarlyView.Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya +6 more
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Electroactive Metal–Organic Frameworks for Electrocatalysis
Advanced Functional Materials, EarlyView.Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska +7 more
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