Results 51 to 60 of about 9,069,692 (293)

The Implementation of Milstein Scheme in Two-Dimensional SDEs Using the Fourier Method

open access: yesAbstract and Applied Analysis, 2018
Multiple stochastic integrals of higher multiplicity cannot always be expressed in terms of simpler stochastic integrals, especially when the Wiener process is multidimensional. In this paper we describe how the Fourier series expansion of Wiener process
Yousef Alnafisah
doaj   +1 more source

Do confidence indicators have an impact on macro-financial indicators? An analysis of the financial service and real sector confidence indexes: evidence from Turkey

open access: yesEuropean Journal of Government and Economics, 2020
The primary aim of this study is to analyze the impact of financial services and real sector confidence indexes on some macroeconomic and financial indicators such as industrial production, inflation, stock market index, foreign exchange rates and ...
Esra N Kilci
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Time-Frequency Analysis of Non-Stationary Biological Signals with Sparse Linear Regression Based Fourier Linear Combiner

open access: yesSensors, 2017
It is often difficult to analyze biological signals because of their nonlinear and non-stationary characteristics. This necessitates the usage of time-frequency decomposition methods for analyzing the subtle changes in these signals that are often ...
Yubo Wang, Kalyana C. Veluvolu
doaj   +1 more source

Pricing weather derivatives in an uncertain environment

open access: yesNonlinear Engineering, 2023
This article deals with the problem of finding a pricing formula for weather derivatives based on temperature dynamics through an uncertain differential equation.
Ali Zulfiqar, Hussain Javed, Bano Zarqa
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Unimodular multiple‐input‐multiple‐output radar wave‐form design with desired correlation properties

open access: yesIET Radar, Sonar & Navigation, 2022
Unimodular waveforms with good correlation properties are desired for multiple‐input‐multiple‐output radar to achieve an increased transmitting/receiving virtual aperture. In this study, a new optimisation framework is introduced to design waveforms with
Zhongrui Huang   +3 more
doaj   +1 more source

The Billard Theorem for Multiple Random Fourier Series [PDF]

open access: yesJournal of Fourier Analysis and Applications, 2016
We propose a generalization of a classical result on random Fourier series, namely the Billard Theorem, for random Fourier series over the d-dimensional torus. We provide an investigation of the independence with respect to a choice of a sequence of partial sums (or method of summation).
Ronsin, Samuel   +2 more
openaire   +3 more sources

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Double Fourier Series-Based Sideband Harmonic Analysis of a Full-Bridge Converter

open access: yesMathematics
To respond to carbon-neutrality policies, interest in transportation powered by eco-friendly energy has increased. These systems require high-efficiency power conversion stages that enable bidirectional operation for driving and regenerative braking ...
Junhyeok Choi, Yeongsu Bak
doaj   +1 more source

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