Results 81 to 90 of about 40,883 (310)

Fourier Transforms [PDF]

open access: yes, 2017
The main purpose of this book is to provide a modern review about recent advances in Fourier transforms as the most powerful analytical tool for high-tech application in electrical, electronic, and computer engineering, as well as Fourier transform ...

core   +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

Fourier-Mukai transforms and stability conditions on abelian threefolds [PDF]

open access: yes, 2014
Construction of Bridgeland stability conditions on a given Calabi-Yau threefold is an important problem and this thesis realizes the rst known examples of such stability conditions.
Piyaratne, Hathurusinghege Dulip Bandara
core  

Quaternion and Clifford Fourier transforms and wavelets [PDF]

open access: yes, 2013
The development of hypercomplex Fourier transforms and wavelets has taken place in several different threads, reflected in the overview of the subject presented in this chapter. We present in Section 1 an overview of the development of quaternion Fourier
Sangwine, SJ   +4 more
core   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

open access: yesAdvanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu   +13 more
wiley   +1 more source

Generalized Fourier transforms classes [PDF]

open access: yes, 2001
The Fourier class of integral transforms with kernels $B(\omega r)$ has by definition inverse transforms with kernel $B(-\omega r)$. The space of such transforms is explicitly constructed.
Møller, Steen, Berntsen, Svend
core  

Two-Dimensional Discrete Coupled Fractional Fourier Transform (DCFrFT)

open access: yesFractal and Fractional
The fractional Fourier transform is critical in signal processing and supports many applications. Signal processing is one notable application. Implementing the fractional Fourier transform requires discrete versions.
Asma Elshamy   +2 more
doaj   +1 more source

Fuzzy and Fourier Transforms

open access: yesProceedings of the 7th conference of the European Society for Fuzzy Logic and Technology (EUSFLAT-2011), 2011
The fuzzy transform (F-transform for short) is a universal tool for a fuzzy modeling with convincing applications to image processing. The aim of this contribution is to explain the eect of the Ftransform in image processing. With this purpose, we investigate properties of the Fourier transform over the F-transform components.
Irina Perfilieva, Petra Hodáková
openaire   +2 more sources

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

Introduction to Fourier transforms [PDF]

open access: yes, 2001
The proof of all the standard Fourier transformations: Discrete Fourier Transform, Fourier Series, Discrete-Time Fourier Transform and Fourier Transform is presented here in very simple mathematics.
Berrig, O E
core  

Home - About - Disclaimer - Privacy