Results 81 to 90 of about 1,463,815 (332)

Experimental Study on Fe3O4 Nanoparticle-Assisted Microwave Enhancing Heavy Oil

open access: yesGeofluids, 2022
Nanoparticle-assisted microwave heating of heavy oil has the advantages of fast temperature rise and high thermal efficiency. Compared with traditional heating methods, it can reduce viscosity in a shorter time.
Teng Lu   +4 more
doaj   +1 more source

Covalent Organic Frameworks for Water Sorption: The Importance of Framework Physical Stability

open access: yesAdvanced Functional Materials, EarlyView.
This study explores the water‐vapor stability of 2D covalent organic frameworks (COFs) with varying pore sizes. Results reveal microporous COFs demonstrate superior stability compared to mesoporous ones, despite lower water uptake. Mesoporous keto‐enamine‐linked COFs show enhanced stability due to intralayer hydrogen bonds, confirmed by simulations and
Wei Zhao   +13 more
wiley   +1 more source

Four‐kilowatt homogeneous microwave heating system using a power‐controlled phase‐shifting mode for improved heating uniformity

open access: yesElectronics Letters, 2019
For homogeneous microwave heating in a microwave cavity with multiple 2.45 GHz microwave generators, power‐controlled phase‐shifting mode is proposed in this Letter.
C.‐H. Jeong, S.‐H. Ahn, W.‐S. Lee
doaj   +1 more source

Microwave bonding of thin film metal coated substrates [PDF]

open access: yes, 2004
Bonding of materials such as MEMS materials is carried out using microwaves. High microwave absorbing films are placed within a microwave cavity containing other less microwave absorbing materials, and excited to cause selective heating in the skin depth
Barmatz, Martin B.   +4 more
core   +1 more source

Efficient sugar production from sugarcane bagasse by microwave assisted acid and alkali pretreatment [PDF]

open access: yes, 2016
Sugarcane bagasse represents one of the best potential feedstocks for the production of second generation bioethanol. The most efficient method to produce fermentable sugars is by enzymatic hydrolysis, assisted by thermochemical pretreatments.
Camila Alves   +7 more
core   +1 more source

Selective Zinc Removal from Electric Arc Furnace (EAF) Dust by Using Microwave Heating

open access: yesJournal of Sustainable Metallurgy, 2019
Recycling of electric arc furnace (EAF) dust helps to avoid disposal of wastes, conserves resources, and minimizes its environmental impact. This study aimed to investigate the selective zinc removal from EAF dust by means of microwave heating oven as a ...
M. Omran   +2 more
semanticscholar   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Ultrahigh‐Yield, Multifunctional, and High‐Performance Organic Memory for Seamless In‐Sensor Computing Operation

open access: yesAdvanced Functional Materials, EarlyView.
Molecular engineering of a nonconjugated radical polymer enables a significant enhancement of the glass transition temperature. The amorphous nature and tunability of the polymer, arising from its nonconjugated backbone, facilitates the fabrication of organic memristive devices with an exceptionally high yield (>95%), as well as substantial ...
Daeun Kim   +14 more
wiley   +1 more source

Application of Microwave Heating for Acetylation of Beech (Fagus sylvatica L.) and Poplar (Populus hybrids) Wood

open access: yesBioResources, 2015
Microwave and conventional acetylation of wood was carried out to determine its efficacy on the material properties. Beech (Fagus sylvatica L.) and poplar (Populus hybrids) samples with dimensions 14 mm × 14 mm × 14 mm were impregnated using acetic ...
Jakub Dömény   +5 more
doaj   +1 more source

Microwave-induced heating behavior of Y-TZP ceramics under multiphysics system

open access: yesGreen Processing and Synthesis, 2020
This paper aims to investigate the heating behaviors of Y-TZP arrays under microwave irradiation. In this study, a three-dimensional numerical model of the microwave heating system was developed by COMSOL Multiphysics software.
Cui Kaihui   +4 more
doaj   +1 more source

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