Results 51 to 60 of about 51,308 (258)
, 1995 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciencias Fisicas e MatematicasExpansões não necessariamente ortogonais de funções no espaço de Hilbert das funções reais quadrado integráveis, através de uma família de funções ...
Rachelli, Janice
core
Fourier Analysis: Graphical Animation and Analysis of Experimental Data with Excel
Spreadsheets in Education, 2012 According to Fourier formulation, any function that can be represented in a graph may be approximated by the “sum” of infinite sinusoidal functions (Fourier series), termed as “waves”.The adopted approach is accessible to students of the first years of ...
Margarida Oliveira +2 more
doaj +2 more sources
Advanced Functional Materials, EarlyView.Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg +6 more
wiley +1 more source
Propriétés analytiques et diophantiennes de certaines séries de Fourier arithmétiques [PDF]
, 2014 We consider certain Fourier series which arise from modular or automorphicforms. We study their analytic properties: differentiability, modulus of continuity and theH¨older regularity exponent. We use two different methods.
Petrykiewicz, Izabela
core +1 more source
Um estudo sobre série de Fourier e aplicações a problemas do tipo Laplace
CQD Revista Eletrônica Paulista de Matemática, 2019 O presente trabalho tem por objetivo analisar a série de Fourier e o problema de Dirichlet para a equação de Laplace - a qual é, também, chamada de equação do potencial e descreve problemas independentes da variável tempo - em um retângulo do R2 ...
Alícia Maria do Nascimento Amorim +2 more
doaj
La enseñanza de las matemáticas avanzadas para ingeniería
Ciencia y Sociedad, 1983 Este artículo reflexiona sobre la importancia de la enseñanza avanzada de las matemáticas en la carrera de Ingeniería. El punto de partida es un par de preguntas: ¿qué enseñar? ¿Cómo enseñar? La respuesta a estas dos preguntas resulta fundamental para la
Gustavo Hernández Mas
doaj +1 more source
BMC Bioinformatics, 2022 Background Biological data suffers from noise that is inherent in the measurements. This is particularly true for time-series gene expression measurements.
Nadav Bar +3 more
doaj +1 more source
Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides
Advanced Functional Materials, EarlyView.A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri +11 more
wiley +1 more source
Teoremas tauberianos para séries de Fourier [PDF]
, 1999 Neste trabalho, vamos caracterizar certas propriedades das séries de Fourier em função da velocidade de convergência a zero de seus coeficientes de Fourier.
Gioveli, Izabel
core
Chiral Phase Change Nanomaterials
Advanced Functional Materials, EarlyView.This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow +11 more
wiley +1 more source