Results 71 to 80 of about 4,663,060 (356)
On a generalization of Fourier series [PDF]
Časopis pro pěstování matematiky a fysiky, 1946 Reihenentwicklungen der Form \(\sum_{-\infty}^{+\infty} (a_\nu\cos l_\nu x+b_\nu\sin l_\nu x)\), wobei die \(l_\nu\) nicht zu sehr von \(\nu\) abweichen. Konvergenzvergleich mit Fourierreihen.
openaire +2 more sources
Advanced Functional Materials, EarlyView.This study introduces a scalable and colored low‐emissivity (low‐e) paint achieved by spraying an ultrathin n‐doped poly(benzodifurandione) (n‐PBDF) coating onto various colored substrates. The low‐e paint enhances thermal regulation by reducing mid‐infrared thermal emissivity to 0.19, thereby stabilizing indoor temperatures across diverse climates ...
Xiaojie Liu +13 more
wiley +1 more source
Fourier Series Nonparametric Regression for the Modelizing of the Tidal [PDF]
, 2017 The method of statistic used to estimate the estimation of sea water level is by nonparametric regression approaching of Fourier series. The rob flood caused by sea level rise in Semarang becomes a dissolved problem until today This results the need of ...
Ismawati, I. (Ismawati) +2 more
core
On the Fourier analysis of operators on the torus
, 2006 Basic properties of Fourier integral operators on the torus are studied by using the global representations by Fourier series instead of local representations.
Ruzhansky, Michael, Turunen, Ville
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Advanced Functional Materials, EarlyView.The MPTT‐nanozyme‐hydrogel system (Mn3O4@ChS‐HA) provides a multifunctional therapeutic strategy for intervertebral disc degeneration (IVDD), effectively targeting oxidative stress and enhancing AF repair by restoring extracellular matrix (ECM) and redox homeostasis.
Yangyang Chen +13 more
wiley +1 more source
Summability of Fourier Series and its Derived Series by Matrix Means
Journal of New Theory, 2019 ThisPaper introduces the concept of matrix operators and establishes two newtheorems on matrix summability of Fourier series and its derived series. theresults obtained in the paper further extend several known results on linearoperators.
Abdelhadi Mohammad Karazon +1 more
doaj
Advanced Functional Materials, EarlyView.HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan +9 more
wiley +1 more source
Fourier Series Related to p-Trigonometric Functions
AxiomsIn this paper, we introduce the concept of generalized Fourier series, generated by the p-trigonometric functions, namely cosp and sinp, recently introduced related to the generalized complex numbers systems.
Ali Hamzah Alibrahim, Saptarshi Das
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Atomic Size Misfit for Electrocatalytic Small Molecule Activation
Advanced Functional Materials, EarlyView.This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong +3 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida +16 more
wiley +1 more source