Results 131 to 140 of about 2,219,834 (339)

Rigidity of critical circle mappings, I

open access: yes, 1997
We prove that two $C^r$ critical circle maps with the same rotation number of bounded type are $C^{1+\alpha}$ conjugate for some $\alpha>0$ provided their successive renormalizations converge together at an exponential rate in the $C^0$ sense. The number
de Faria, Edson, de Melo, Welington
core   +2 more sources

Influence of Layering and Curie Temperature Uncertainty on the Performance of Multilayer Active Magnetic Regenerators

open access: yesAdvanced Functional Materials, EarlyView.
This study examines how manufacturing uncertainties in Curie temperatures (1.5–2°C) affect multilayer active magnetic regenerators (AMR). While increasing the number of magnetocaloric layers boosts cooling power, performance degrades due to temperature variations.
Urban Tomc   +6 more
wiley   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

A Test for Beta Convergence

open access: yes, 2016
The research is based on examining of beta convergence among the countries around the world. The method of estimation adopted in this framework is a cross-sectional analysis of regression, employing data from 46 selected countries for the period of 1980 to 2014. The sources of the data set involve in the research is the World Bank Development database.
openaire   +1 more source

Beta Convergence among Former Socialist Countries

open access: yesSouth East European Journal of Economics and Business, 2018
Abstract The aim of this paper is to analyze the convergence process among former Socialist countries, the Central and Eastern European (CEE), Western Balkan and Eastern Partnership countries. The relationships between the selected macroeconomic variables and per capita GDP growth rate are econometrically tested to support this research.
openaire   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

ℐ-αβ-statistical relative uniform convergence for double sequences and its applications

open access: yesDemonstratio Mathematica
This article introduces a novel concept of convergence, referred to as ℐ{\mathcal{ {\mathcal I} }}-αβ\alpha \beta -statistical relative uniform convergence, for double sequences of functions.
Bayram Nilay Sahin, Yıldız Sevda
doaj   +1 more source

Regional convergence in Finnish provinces and subregions, 1960-94 [PDF]

open access: yes
This paper analyses regional productivity convergence in Finland using two different data sets. Firstly, absolute and conditional convergence was estimated in the 12 Finnish provinces during 1960-94.
Sari Anneli Pekkala
core  

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