Results 71 to 80 of about 3,408 (306)

Flow physics of planar bistable fluidic oscillator with backflow limbs

open access: yesAIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract Fluidic oscillators (FOs) are used in a variety of applications, including process control and process intensification. Despite the simple design and operation of FOs, the fluid dynamics of FOs exhibit rich complexities. The inherently unstable flow, jet oscillations, and resulting vortices influence mixing and other transport processes.
Ketan Madane   +3 more
wiley   +1 more source

On the growth of Fourier multipliers

open access: yesJournal of Noncommutative Geometry
We define a sequence of functions, namely, tame cuts, in the Fourier algebra A(G) of a locally compact group G , which satisfies certain convergence and growth conditions.
openaire   +2 more sources

Fourier multipliers on compact groups

open access: yesMonatshefte f�r Mathematik, 1982
In a recent paperIan Inglis gives some sufficient conditions for a function on a totally disconnected compact Abelian group to be anL p Fourier multiplier. His proof depends on an interpolation theorem ofE. M. Stein. In this note we prove a generalization ofInglis' theorem.
Quek, T.S., Yap, Y.H.
openaire   +2 more sources

Flexographic Printed Flexible Thermochromic Stickers for Smart Sensing Applications

open access: yesAdvanced Materials Interfaces, EarlyView.
Thermochromic complexes of 1‐butyl‐3‐methylimidazolium chloride and 4‐chloronickelate are synthesized and incorporated in hydroxypropyl cellulose‐based water inks. Films with 40 wt.% thermochromic complexes and three layers are flexographic printed on polypropylene tags in a process compatible with roll‐to‐roll manufacturing. After encapsulation with a
M. Morais   +9 more
wiley   +1 more source

Facile Synthesis of a Carbon Nano Dot‐Based Wearable Flexible Thermoelectric Device

open access: yesAdvanced Materials Technologies, EarlyView.
A wearable proto‐type device made with low‐cost, bio‐friendly, and environmentally safe materials that can be readily fabricated to generate energy from low waste temperatures is demonstrated. The Carbon Nano Dot composite thin films are supported by a flexible cellulose substrate that harnesses thermoelectric principles to generate power from body ...
Al Jumlat Ahmed   +8 more
wiley   +1 more source

New Efficient D‐π‐A and A‐π‐A Structured Type I Radical Photoinitiators for Additive Manufacturing Nanomaterials Preparation

open access: yesAdvanced Materials Technologies, EarlyView.
Groundbreaking advancements are discovered in 3D printing with new type‐I radical photoinitiators, including 1,1‐dimethoxy‐1‐phenylpropan‐2‐one. These innovative compounds, effective under visible light, enhance photopolymerization of acrylates and methacrylates, facilitating the creation of efficient nanocomposites and unlock the future of polymer ...
Andrzej Świeży   +5 more
wiley   +1 more source

Mikhlin-Type Hp Multiplier Theorem on the Heisenberg Group

open access: yesAxioms
The classical Fourier multiplier theorem by Mikhlin in Hardy spaces is extended to the Heisenberg group. The proof relies on the theories of atom and molecule functions and the property of special Hermite functions.
Jinsen Xiao, Jianxun He, Yingzhu Wu
doaj   +1 more source

Miniaturized Devices for On‐the‐Spot Generation of Small‐Diameter Vascular Grafts

open access: yesAdvanced Materials Technologies, EarlyView.
An intracorporeal extrusion device is developed for on‐the‐spot generation of vascular grafts with tunable diameters spanning from 1 to 6 mm. The device uses biomimetic polymers and light, to promptly obtaining biocompatible and high‐burst pressure‐resistant grafts.
Deyanira Hernandez‐Sanchez   +11 more
wiley   +1 more source

Fourier multipliers in Hilbert spaces

open access: yes, 2017
This is a survey on a notion of invariant operators, or Fourier multipliers on Hilbert spaces. This concept is defined with respect to a fixed partition of the space into a direct sum of finite dimensional subspaces. In particular this notion can be applied to the important case of $L^2(M)$ where $M$ is a compact manifold $M$ endowed with a positive ...
Delgado, Julio, Ruzhansky, Michael
openaire   +3 more sources

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