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Journal articles on the topic 'Microwave heating'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Horikoshi, Satoshi, Yuhei Arai, and Nick Serpone. "In Search of the Driving Factor for the Microwave Curing of Epoxy Adhesives and for the Protection of the Base Substrate against Thermal Damage." Molecules 26, no. 8 (2021): 2240. http://dx.doi.org/10.3390/molecules26082240.

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This study used controlled microwaves to elucidate the response of adhesive components to microwaves and examined the advantages of microwave radiation in curing epoxy adhesives. Curing of adhesives with microwaves proceeded very rapidly, even though each component of the adhesive was not efficiently heated by the microwaves. The reason the adhesive cured rapidly is that microwave heating was enhanced by the electrically charged (ionic) intermediates produced by the curing reaction. In contrast, the cured adhesive displayed lower microwave absorption and lower heating efficiency, suggesting th

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Wu, Song, Shen Li, Shuxia Yuan, Bintao Guo, and Quansen Niu. "Enhanced coalbed methane recovery by microwave-induced thermal fracture." Journal of Physics: Conference Series 2838, no. 1 (2024): 012005. http://dx.doi.org/10.1088/1742-6596/2838/1/012005.

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Abstract The investigation on microwave-induced permeabilization and response of coal under microwave heating is of great significance for the industrial application of microwave heating technology instead of traditional heating in coalbed methane mining. Santanghu coal is used as a sample to measure the permeability and porosity of coal samples before and after microwave heating. The fracture changes of coal samples before and after heating are compared to observe the penetration effect of microwaves on coal samples. Based on the technology of directional drilling and continuous tubing techno

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Buchelnikov, Vasiliy D., D. V. Lousguine-Luzgin, Igor V. Bychkov, and A. P. Anzulevich. "Microwave Heating of Metallic Powders." Solid State Phenomena 152-153 (April 2009): 385–88. http://dx.doi.org/10.4028/www.scientific.net/ssp.152-153.385.

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It is known from experimental data that bulk metallic samples reflect microwaves while powdered samples can absorb such radiation and be heated efficiently. In the present paper we investigate theoretically the mechanisms of penetration of microwave radiation through a layer of metallic powder and microwave heating of such system.

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4

Yuchen, Li. "Application of Microwave Technology in Different Fields for Energy Saving and Emission Reduction." Chinese Sustainable Development Review 2, no. 2 (2023): 26–36. http://dx.doi.org/10.48014/csdr.20230406001.

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In today's world, security of energy supply and greenhouse gas emissions due to rising energy demand are seriously threatening sustainable energy development, and it is urgent to promote energy structure reform. Microwave, as a clean and environmentally friendly green energy source, has developed rapidly in recent years. Unlike traditional heating methods, microwave heating generates heat through the random motion of polar molecules. This results in microwave heating having the advantages of selective heating, fast temperature rise, easy control and high heating efficiency. This allows microwa

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Shukla, A. K., A. Mondal, and A. Upadhyaya. "Numerical modeling of microwave heating." Science of Sintering 42, no. 1 (2010): 99–124. http://dx.doi.org/10.2298/sos1001099s.

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The present study compares the temperature distribution within cylindrical samples heated in microwave furnace with those achieved in radiatively-heated (conventional) furnace. Using a two-dimensional finite difference approach the thermal profiles were simulated for cylinders of varying radii (0.65, 6.5, and 65 cm) and physical properties. The influence of susceptor-assisted microwave heating was also modeled for the same. The simulation results reveal differences in the heating behavior of samples in microwaves. The efficacy of microwave heating depends on the sample size and its thermal con

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Xu, Shi, Xueyan Liu, Amir Tabaković, and Erik Schlangen. "The Prospect of Microwave Heating: Towards a Faster and Deeper Crack Healing in Asphalt Pavement." Processes 9, no. 3 (2021): 507. http://dx.doi.org/10.3390/pr9030507.

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Microwave heating has been shown to be an effective method of heating asphalt concrete and in turn healing the damage. As such, microwave heating holds great potential in rapid (1–3 min) and effective damage healing, resulting in improvement in the service life, safety, and sustainability of asphalt pavement. This study focused on the microwave healing effect on porous asphalt concrete. Steel wool fibres were incorporated into porous asphalt to improve the microwave heating efficiency, and the optimum microwave heating time was determined. Afterwards, the microwave healing efficiency was evalu

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Sakemi, Daisuke, Nick Serpone, and Satoshi Horikoshi. "Search for the Microwave Nonthermal Effect in Microwave Chemistry: Synthesis of the Heptyl Butanoate Ester with Microwave Selective Heating of a Sulfonated Activated Carbon Catalyst." Catalysts 11, no. 4 (2021): 466. http://dx.doi.org/10.3390/catal11040466.

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The heptyl butanoate ester was synthesized from butanoic acid and heptanol in a heterogeneous medium in the presence of sulfonated activated carbon (AC-SO3H) catalyst particles subjected to microwave irradiation, which led to higher conversion yields (greater product yields) than conventional heating with an oil bath. The advantage of the microwaves appeared only when the moisture content in the butanoic acid batch(es) was high, suggesting that, unlike conventional heating, the reverse reaction caused by the moisture content and/or by the byproduct water was suppressed by the microwaves. This

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8

Michalak, Joanna, Marta Czarnowska-Kujawska, Joanna Klepacka, and Elżbieta Gujska. "Effect of Microwave Heating on the Acrylamide Formation in Foods." Molecules 25, no. 18 (2020): 4140. http://dx.doi.org/10.3390/molecules25184140.

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Acrylamide (AA) is a neurotoxic and carcinogenic substance that has recently been discovered in food. One of the factors affecting its formation is the heat treatment method. This review discusses the microwave heating as one of the methods of thermal food processing and the influence of microwave radiation on the acrylamide formation in food. In addition, conventional and microwave heating were compared, especially the way they affect the AA formation in food. Available studies demonstrate differences in the mechanisms of microwave and conventional heating. These differences may be beneficial

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9

Ngamkiatpaisan, Akawat, Montree Hankoy, Mettaya Kitiwan, Nittaya Keawprak, and Phacharaphon Tunthawiroon. "A STUDY ON SiC SUSCEPTOR CONFIGURATION FOR MICROWAVE HYBRID HEATING." Suranaree Journal of Science and Technology 30, no. 5 (2023): 030152(1–5). http://dx.doi.org/10.55766/sujst-2023-05-e03043.

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Microwave hybrid heating (MHH) is a novel method to enhance ceramic sintering at high temperatures. The heating mechanism by MHH involves two directions of heat transfer for materials: microwaves heat the sample from the inside out, while the susceptor provides conventional heating from the outside. This unique heating mechanism offers several advantages, including uniform heating, rapid sintering, and enhanced microstructure and properties of materials. This study investigates the configuration of silicon carbide (SiC) susceptors for microwave hybrid heating. The microwave oven (multi-mode, 2

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10

Hong, Yoon-Ki, Roger Stanley, Juming Tang, Lan Bui, and Amir Ghandi. "Effect of Electric Field Distribution on the Heating Uniformity of a Model Ready-to-Eat Meal in Microwave-Assisted Thermal Sterilization Using the FDTD Method." Foods 10, no. 2 (2021): 311. http://dx.doi.org/10.3390/foods10020311.

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Microwave assisted thermal sterilization (MATS) is a novel microwave technology currently used in the commercial production of ready-to-eat meals. It combines surface heating of high-temperature circulation water with internal microwave heating in cavities. The heating pattern inside the food packages in a MATS process depends heavily on the electric field distribution formed by microwaves from the top and bottom windows of the microwave heating cavities. The purpose of this research was to study the effect of the electric field on 922 MHz microwave heating of ready-to-eat meals as they moved

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Murat TEKER, Ayşe USLUOĞLU, Murat TEKER, Ayşe USLUOĞLU. "MICROWAVE ASSISTED DYEING OF COTTON FABRIC WITH REACTIVE DYES." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 148, no. 02-02 (2024): 506–11. https://doi.org/10.36962/pahtei14802-022024-506.

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Microwaves are a form of electromagnetic waves, like other radio waves. Microwave technology, which provides homogeneous and fast heating, attracts attention as an ecofriendly alternative new method in industrial processes. So, the use of microwave technology in many industries has be-come widespread recently. In this study, conventional heating and microwave heating in the exhaust dyeing of bleached cot-ton fabric with reactive dyestuff were studied. The aim of this study is dyeing of cotton fabric with reactive dyestuff using microwave media to save time, energy and money. The conventional r

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12

El, Khaled Dalia, Castellano Nuria Novas, Jose A. Gazquez, and Francisco Manzano-Agugliaro. "Microwave dielectric heating: Applications on metals processing." Renewable and Sustainable Energy Reviews 82, no. 3 (2018): 2880–92. https://doi.org/10.1016/j.rser.2017.10.043.

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Microwave material processing is a novel energy efficient technology with improved mechanical properties, minimized defects and economical and environmental advantages making it a convenient application for various types of materials. Although, microwave interaction with matter has been largely investigated and published in food processing, ceramics and chemistry, no particular work has been involved in collecting the interactions of microwaves with metals and placing a special emphasis on their interaction with metals and metal-based formulations, and here resides the aim of the review: conso

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Yang, Ran, and Jiajia Chen. "Mechanistic and Machine Learning Modeling of Microwave Heating Process in Domestic Ovens: A Review." Foods 10, no. 9 (2021): 2029. http://dx.doi.org/10.3390/foods10092029.

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The domestic microwave oven has been popularly used at home in heating foods for its rapid heating rate and high power efficiency. However, non-uniform heating by microwave is the major drawback that can lead to severe food safety and quality issues. In order to alleviate this problem, modeling of microwave heating process in domestic ovens has been employed to simulate and understand the complicated interactions between microwaves and food products. This paper extensively reviews the mechanistic models with different geometric dimensions and physics/kinetics that simulated the microwave heati

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14

Belkhir, Kedafi, Guillaume Riquet, and Frédéric Becquart. "Polymer Processing under Microwaves." Advances in Polymer Technology 2022 (May 6, 2022): 1–21. http://dx.doi.org/10.1155/2022/3961233.

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Over the last decades, microwave heating has experienced a great development and reached various domains of application, especially in material processing. In the field of polymers, this unusual source of energy showed important advantages arising from the direct microwave/matter interaction. Indeed, microwave heating allows regio-, chemio-, and stereo-selectivity, faster chemical reactions, and higher yields even in solvent-free processes. Thus, this heating mode provides a good alternative to the conventional heating by reducing time and energy consumption, hence reducing the costs and ecolo

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15

Sano, Saburo, Sadatsugu Takayama, and Akira Kishimoto. "Microwave Absorbency Change of Nitride Powders under Vacuum Heating." Advances in Science and Technology 88 (October 2014): 31–36. http://dx.doi.org/10.4028/www.scientific.net/ast.88.31.

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We measured the microwave and millimeter-wave behaviors of ceramics and metal powders as a basis for developing microwave and millimeter-wave heating technology. In this study, nitride powders were subjected to microwave absorption measurements at elevated temperature. These measurements were performed using a system comprising a vector network analyzer, a circular wave-guide fixture, and a vacuum furnace. The sample’s microwave absorbency was evaluated by the change in reflection power from the sample in the circular wave-guide fixture under vacuum heating. Measurements were performed at appr

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Fujii, Takashi, Akio Oshita, and Keiichiro Kashimura. "Behaviour of Microwave-Heated Al4SiC4 at 2.45 GHz." Materials 14, no. 17 (2021): 4878. http://dx.doi.org/10.3390/ma14174878.

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The ongoing development of high-temperature processes with the use of microwaves requires new microwave absorbers that are useful at these temperatures. In this study, we propose Al4SiC4 powders as important and efficient microwave absorbers. We investigated both the behavioural microwave heating and electrical permittivity characteristics of Al4SiC4 powders with various particle sizes at 2.45 GHz. The TE103 single-mode cavity indicated that Al4SiC4 powder samples yielded different heating behaviours and dielectric constants for each particle size compared with SiC. By microwave heating ∅50 mm

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17

Savu, I. Danut, Sorin Vasile Savu, and Gabriel Constantin Benga. "Thermal Runaway of the BaCO₃ + Fe₂O₃ Homogenous Mixture and Mechanical Alloys at the Microwave Heating." Advanced Materials Research 837 (November 2013): 185–89. http://dx.doi.org/10.4028/www.scientific.net/amr.837.185.

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Microwave heating represents a modern technique to sintering the composites materials. The microwaves absorbance property of the materials is depending by the electrical permittivity of the materials. Researchers showed that the ceramic materials are suitable for sintering using microwave heating. The most important advantage of that sintering procedure is the reduced sintering time and temperatures. However, during the heating process these properties are changing and a pattern of the heating process cannot be established. The penetration depth of microwaves into materials depends on the elec

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Palma, Vincenzo, Daniela Barba, Marta Cortese, Marco Martino, Simona Renda, and Eugenio Meloni. "Microwaves and Heterogeneous Catalysis: A Review on Selected Catalytic Processes." Catalysts 10, no. 2 (2020): 246. http://dx.doi.org/10.3390/catal10020246.

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Since the late 1980s, the scientific community has been attracted to microwave energy as an alternative method of heating, due to the advantages that this technology offers over conventional heating technologies. In fact, differently from these, the microwave heating mechanism is a volumetric process in which heat is generated within the material itself, and, consequently, it can be very rapid and selective. In this way, the microwave-susceptible material can absorb the energy embodied in the microwaves. Application of the microwave heating technique to a chemical process can lead to both a re

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19

Liu, Ya Jing, Tao Jiang, Zhi Deng, Xiang Xin Xue, and Pei Ning Duan. "Stuy on Microwave-Assisted Grinding of Low-Grade Ludwigite." Materials Science Forum 814 (March 2015): 214–19. http://dx.doi.org/10.4028/www.scientific.net/msf.814.214.

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The low-grade ludwigite is one of the complex and refractory ores. Based on the high energy consumption and inefficient in the grinding process and according to the microwave-assisted grinding principle, this paper studied the microwave absorption property of ludwigite and researched the effect of microwave heating on the grinding efficiency of it. The non-microwaved and microwaved samples were characterized with regard to the chemical components, mineral compositions, macroscopic structure and microstructure, grinding efficiency by methods of the chemical analysis, X-ray diffraction (XRD), sc

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Приходько, Н. Г., М. А. Елеуов, К. Аскарулы, Ә. Ә. Әбдiсаттар, А. Б. Толынбеков та А. Т. Таурбеков. "Воздействие микроволнового нагрева на повышение выхода графена и графеноподобных структур из активированной растительной биомассы". Горение и плазмохимия 23, № 2 (2025): 137–51. https://doi.org/10.18321/cpc23(2)137-151.

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The article presents the results of studying the process of increasing the degree of graphitization and the yield of graphene-like structures (GLS) from pre-carbonized and activated biomass (wheat and barley straw, rice husk) by heating in a microwave oven. Microwave heating has significant advantages over conventional electric heating, which is more energy-intensive and often ineffective. Microwave heating is a convenient, economical and environmentally friendly way to obtain graphene, unlike complex multi-stage processes associated with the use of various chemical reagents. Using microwave h

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Metaxas, A. C. "Microwave heating." Power Engineering Journal 5, no. 5 (1991): 237. http://dx.doi.org/10.1049/pe:19910047.

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Phey Yee Foong, Chun Hong Voon, Bee Ying Lim, et al. "A Comparative Study of Microwave Welding Using Multiwalled Carbon Nanotubes and Silicon Carbide Nanowhiskers as Microwave Susceptors." International Journal of Nanoelectronics and Materials (IJNeaM) 17, no. 4 (2024): 535–40. http://dx.doi.org/10.58915/ijneam.v17i4.1280.

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Recently, microwave welding has arisen as an advanced joining method due to its versatility and rapid heating capabilities. Among others, microwave susceptors play a crucial role in microwave welding, as different classes of microwave susceptors have distinct microwave heating mechanisms. In this work, polypropylene (PP) was utilized as a thermoplastic substrate and two types of microwaves susceptors, namely multiwalled carbon nanotubes (MWCNTs) and silicon carbide nanowhiskers (SiC NWs), were studied for microwave welding. The susceptor was first dispersed in acetone to form susceptor suspens

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Guan, Bowen, Jianan Liu, Hua Zhao, Jiayu Wu, Jingyi Liu, and Fa Yang. "Investigation of the Microwave Absorption of Asphalt Mixtures Containing Magnetite Powder." Coatings 9, no. 12 (2019): 813. http://dx.doi.org/10.3390/coatings9120813.

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This article is intended to investigate the microwave heating performance of asphalt mixtures containing magnetite powders (MPAM). For this purpose, the surface temperatures of asphalt mixtures containing different dosages of magnetite powders were measured during microwave heating. The low-temperature bending test and water sensitivity test were also conducted to evaluate the performance of MPAM. Heating rate and reflection loss of different thicknesses of MPAM were determined using a microwave heating test and arch reflectivity test, respectively. The results showed that because its main com

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Savu, Sorin Vasile. "Microwave Differential Thermal Analysis Technique of the Fe₂O₃+BaCO₃ Homogeneous Mixture." Advanced Materials Research 1036 (October 2014): 24–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1036.24.

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The microwave differential thermal analysis (MW-DTA) is a new procedure to evaluate the materials, barium ferrite type M in this paper, according to the phenomena appeared during the material heating. The paper presents a new evaluation technique which is faster and with low energy consumption. The microwaves are used to heat the material, two infrared pyrometers for monitoring the temperatures on the material surface and a temperature regulator where the data are recorded for evaluation. The material, a homogeneous mixture of Fe2O3+BaCO3, is a ceramic material with good absorbance properties,

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Trigos, L., J. Gallego, JI Escavy, and D. Ayala. "Self-healing of asphalt mixture: the impact of the minerals forming the aggregates in the efficiency of the heating by microwaves." IOP Conference Series: Earth and Environmental Science 942, no. 1 (2021): 012024. http://dx.doi.org/10.1088/1755-1315/942/1/012024.

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Abstract The current concern for the environment and the need to reduce greenhouse gas emissions have led to new technologies related to microwave energy. One of these technologies is the self-healing of asphalt mixtures, which consists of repairing pavements through microwave application on the surface, avoiding premature road failure. Asphalt mixtures for roads are made up of more than 90% by weight of aggregates of different compositions and origins, in addition to a bituminous binder and sometimes additives. From other studies, it is known that the physical behaviour of aggregates is a fun

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Xing, Jian Yu, Xiu Ling Song, Bo Bai, Shao Kun Lu, and Hai Peng Liu. "Investigation of Microwave Field Selective Heating on Two-Phase System." Applied Mechanics and Materials 448-453 (October 2013): 3005–8. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.3005.

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Microwaves represent an alternative way of power input into distillation process. Through dielectric heating, reaction mixtures are homogenously heated without contact to a wall. Reaction times are significantly reduced compared to conventionally (thermally) heated systems while maintaining selectivity. In this paper, microwave field select heating on two-phase system has been investigated numerically and experimentally. Temperature increasing, heat transfer and evaporation during heating process were analyzed. The possibility of microwave used for distillation was examined and proposed.

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Lutfi, Maisarah, Farazila Yusof, Tadashi Ariga, Ramesh Singh, and Mohd Hamdi Bin Abd Shukor. "Interfacial Reaction Analysis of Cu-Sn-Ni-P/Cu Joint Using Microwave Hybrid Heating." Key Engineering Materials 701 (July 2016): 148–53. http://dx.doi.org/10.4028/www.scientific.net/kem.701.148.

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Microwave hybrid heating (MHH) technique was used to investigate the formation of intermetallic compound layer at Cu-7.0Ni-9.3Sn-6.3P/Cu interface. Two different susceptor materials; graphite and silicon carbide were used to provide initial heating of the filler alloy before it starts couple with the microwaves and melted on the Cu surface. The interface of IMC layer was characterized using Scanning Electron Microscope (SEM), energy dispersive X-ray spectrometry (EDS) and microhardness. Metallurgical study showed the formation of the IMC layer with multiphase at the joint interface for microwa

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Tapan, Kumar Mahato, Janakkumar Bhatt Ravi, Agnihotri Vikash, and Saraf Shruti. "Heating using microwave technique: An approach towards green chemistry." International Journal of Scientific Research Updates 04, no. 01 (2022): 340–45. https://doi.org/10.53430/ijsru.2022.4.1.0143.

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Abstract  Green chemistry focuses on minimizing waste, minimizing use of chemicals/reagents, reducing pollution and preservation of human health and environment. Using conventional methods of synthesis are creating the said problems in present scenario. To solve these problems new alternate methods must be developed. Many alternatives have been already developed but many more have to do. Use of microwave radiations are one the alternative in which these radiations are used for heating purpose instead of conventional heating methods which uses solvents in large amount and requires much tim

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Yinglong, Wang, Cui Peizhe, and Wang Dezhi. "Kinetics of the microwave-accelerated corrosion of aluminium in sodium hydroxide solution." Journal of Indian Chemical Society Vol. 90, Aug 2013 (2013): 1263–68. https://doi.org/10.5281/zenodo.5788395.

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College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China <em>E-mail</em>: yinglongw@126.com <em>Manuscript received online 11 July 2012, accepted 22 August 2012</em> The present work is based on the effects of microwave heating and water bath heatihng on the corrosion rate of aluminium in sodium hydroxide solution. The kinetic laws of the aluminium corrosion process were explored using the weight-loss method with different concentrations of alkaline solution at different reaction temperatures. The kinetic parameters obtained under the two sets of con

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Ostasz, Lidia. "Analiza zmian oksydacyjnych i zawartości kwasów tłuszczowych w oleju „Kujawski" pod wpływem ogrzewania mikrofalowego." Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, no. 912 (December 19, 2015): 73–88. http://dx.doi.org/10.15678/krem.770.

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The goal of this study was to analyse the qualitative changes occurring in oil during microwave heating. The subject of the study was Kujawski oil, manufactured by ZT Kruszwica, and purchased retail. Oil samples were heated in an RM 800 microwave reactor. Microwaves at a power of 200, 400, 600 and 800 W were used. The heating duration for the oil samples ranged from 3 to 30 minutes. As a result of heating, the oils were observed to increase in temperature depending on the microwave power. This resulted in oxidative changes in the oil samples, as evidenced by the increase in the values on the p

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Yahaya, Bashir, Sudin Izman, Mohamed Konneh, and Norizah Redzuan. "Microwave Hybrid Heating of Materials Using Susceptors - A Brief Review." Advanced Materials Research 845 (December 2013): 426–30. http://dx.doi.org/10.4028/www.scientific.net/amr.845.426.

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This article discusses the fundamentals and benefits of microwave hybrid heating. High dielectric loss materials can be processed using direct microwave heating, whereas low dielectric loss materials can only be process using microwave through microwave hybrid heating. It was shown that it is possible to virtually process any type of materials via microwave hybrid heating. Microwave hybrid heating offers faster heating rate than direct microwave heating. It reduces the problem of thermal runaway experience in direct microwave heating of high dielectric loss materials. The two basic types of mi

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Guo, Junhui, Huacheng Zhu, Yang Yang, and Qinggong Guo. "Continuous-Flow Microwave Milk Sterilisation System Based on a Coaxial Slot Radiator." Foods 12, no. 3 (2023): 459. http://dx.doi.org/10.3390/foods12030459.

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Microwave continuous-flow liquid food sterilisation, in which the liquid is mainly heated by microwaves, has the advantages of fast sterilisation speed, energy saving, comprehensive elimination, and less nutrient loss. Circular pipes are commonly used in microwave continuous-flow liquid heating processing. However, with circular pipes, which are widely used in the industry, the heating is uneven owing to the phenomenon of tube focusing when adopting external radiation. In this study, a novel microwave continuous-flow milk sterilisation system based on a coaxial slot radiator is proposed. First

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Alkaltham, Mohammed Saeed, Khizar Hayat, Ahmad Mohammad Salamatullah, Mohammed Asif Ahmed, and Amro B. Hassan. "Effect of Microwave and Conventional Heat Treatment on Total Phenolic Compounds, HPLC Phenolic Profile, and Antioxidant Activity of Leptadenia pyrotechnica (Forssk.) Decne Stem." Applied Sciences 13, no. 24 (2023): 13222. http://dx.doi.org/10.3390/app132413222.

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Leptadenia pyrotechnica is considered a wild herb used to enhance the palatability of food, particularly in the Gulf region. The effect of microwave (5, 8, and 10 min at 900 W) and hot-air heating (60, 120, and 180 min at 100 °C) on the phenolic compounds and antioxidants of L. pyrotechnica stems was investigated. The results showed that microwave heating gave high values of the total phenolic content (TPC), total flavonoid content (TFC), and antioxidant properties, while the control sample was inferior in all these attributes. Moreover, microwave heating, particularly for 8 min, produced the

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VIDAČEK, SANJA, CRISTINA DE LAS HERAS, MARIA TERESA SOLAS, MARIA LUISA GARCÍA, ANGEL MENDIZÁBAL, and MARGARITA TEJADA. "Viability and Antigenicity of Anisakis simplex after Conventional and Microwave Heating at Fixed Temperatures." Journal of Food Protection 74, no. 12 (2011): 2119–26. http://dx.doi.org/10.4315/0362-028x.jfp-11-108.

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Inactivation of parasites in food by microwave treatment may vary due to differences in the characteristics of microwave ovens and food properties. Microwave treatment in standard domestic ovens results in hot and cold spots, and the microwaves do not penetrate all areas of the samples depending on the thickness, which makes it difficult to compare microwave with conventional heat treatments. The viability of Anisakis simplex (isolated larvae and infected fish muscle) heated in a microwave oven with precise temperature control was compared with that of larvae heated in a water bath to investig

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Ding, Longting, Xuancang Wang, Wengang Zhang, Shuai Wang, Jing Zhao, and Yongquan Li. "Microwave Deicing Efficiency: Study on the Difference between Microwave Frequencies and Road Structure Materials." Applied Sciences 8, no. 12 (2018): 2360. http://dx.doi.org/10.3390/app8122360.

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A method of deicing using microwave heating is proposed to make scientific and economical road deicing in a cold area, and to make up for deficiencies in the existing methods for melting snow and ice. This paper proposes to define microwave deicing efficiency as the heating rate of a concrete surface when heated to 0 °C (the efficiency of deicing is equal to the difference divided by heating time, which is between 0 °C and the initial temperature at the junction of ice and concrete). Based on the mechanism of microwave heating and deicing, a method combining the finite element simulation model

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Takaaki, Wajima, and Masayuki Miyagawa. "Recycling of Waste Glass Fiber Reinforced Plastics (GFRP) via Pyrolysis with Sodium Hydroxide using Microwave Heating." Key Engineering Materials 920 (May 16, 2022): 68–73. http://dx.doi.org/10.4028/p-t275a5.

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Glass fiber reinforced plastics (GFRP) are composite materials with high strength and flame retardancy, and the disposal process is expensive to cause illegal dumping. Therefore, new recycling technology of waste GFRP is desired. In this study, recycling of waste GFRP via pyrolysis with sodium hydroxide (NaOH) under an inert atmosphere using microwave heating was attempted by carbonization of resin and conversion of glass fiber into soluble sodium silicate. The pyrolysis behavior of GFRP, the characteristics of the obtained residue, and the silica extraction into the solution were compared for

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Rosyadi, Imron, Suyitno Suyitno, Albert Xaverio Ilyas, Afif Faishal, Andres Budiono, and Mirza Yusuf. "Producing hydrogen-rich syngas via microwave heating and co-gasification: a systematic review." Biofuel Research Journal 9, no. 1 (2022): 1573–91. http://dx.doi.org/10.18331/brj2022.9.1.4.

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Co-gasification contributes significantly to the generation of hydrogen-rich syngas since it not only addresses the issue of feedstock variation but also has synergistic benefits. In this article, recent research on hydrogen concentration and yield, tar content, gasification efficiency, and carbon conversion efficiency is explored systematically. In feedstocks with high water content, steam gasification and supercritical hydrothermal gasification technologies are ideal for producing hydrogen at a concentration of 57%, which can be increased to 82.9% using purification technology. Carbonized co

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Petkova, Zhana, and Ginka Antova. "A comparative study on quality parameters of pumpkin, melon and sunflower oils during thermal treatment." OCL 26 (2019): 32. http://dx.doi.org/10.1051/ocl/2019028.

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Current paper reveals the impact of thermal treatment on the quality of two seed oils – pumpkin and melon compared to the quality of the most used oil – sunflower oil. Conventional and microwave heating were used for processing the oils. The duration of the thermal treatment was 9, 12 and 18 min for the conventional heating. The microwave heating was performed with two microwave powers of the equipment (600 W and 900 W) for 3, 6, 9 and 12 min. At every stage of the thermal processing were determined acid and peroxide value, the absorbance of the oils at 232 and 268 nm, tocopherol and fatty aci

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Abdullah, Iram. "Manufacturing of Kevlar/Polyester Composite by Resin Transfer Moulding using Conventional and Microwave Heating." Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences 58, no. 1 (2015): 34–40. http://dx.doi.org/10.52763/pjsir.phys.sci.58.1.2015.34.40.

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Microwave heating was incorporated into the resin transfer moulding technique. Polytetrafluoroethylene (PTFE) mould was used to cure the composite panel. Through the use of microwave heating, the mechanical and physical properties of produced Kevlar fibre/polyester composites were compared to those manufactured by conventional resin transfer moulding. The flexural modulus and flexural strength of 6-ply conventionally cured composites was 45% and 9% higher than the flexural modulus and flexural strength of 6-ply microwaved cured composites, respectively. However, 19% increase in interlaminar sh

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Pickles, Christopher, and Ting Lu. "Microwave Dewatering of Gibbsite-Type Bauxite Ores: Permittivities, Heating Behavior and Strength Indices." Minerals 12, no. 5 (2022): 648. http://dx.doi.org/10.3390/min12050648.

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Microwave radiation is a relatively new energy source that is being considered for several applications in mineral processing and extractive metallurgy. In the present research, various gibbsite-type bauxite ores were subjected to microwave radiation. The main objective was to assess the effect of microwave dewatering on the compressive strength indices of the ores and to compare the results obtained to those for conventional heating. Firstly, the fundamental interactions of the microwaves with the ores were evaluated by determining both the real and the imaginary permittivities as a function

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Kołakowska, Anna, and Grzegorz Bienkiewicz. "Stability of fish lipids during microwave heating." Acta Ichthyologica et Piscatoria 29, no. 1 (1999): 101–11. http://dx.doi.org/10.3750/aip1999.29.1.09.

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M Guardeño, L., M. Hernández-Carrión, J. M Catala-Civera, P. Plaza, I. Pérez-Munuera, and I. Hernando. "Improving Microwave Heating using Polysaccharides as Thickeners." Czech Journal of Food Sciences 27, Special Issue 1 (2009): S342—S345. http://dx.doi.org/10.17221/1085-cjfs.

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The aim of this work was to improve microwave heating in white sauces using different polysaccharides in their formulation; &iota;-, &lambda;- and &kappa-carrageenan and native and modified starches were used as thickeners. Five model systems were prepared, each one with a different polysaccharide, salt, and water. Dielectric loss factor (&epsilon;'') was measured and penetration depth of the electric field was calculated at 20 and 40°C at 2450 GHz. The results showed that &epsilon;'' increased significantly (<I>P</I> < 0.05) when temperature rose in all the

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Martínez-Lázaro, Alejandra, Luis A. Ramírez-Montoya, Janet Ledesma-García, et al. "Facile Synthesis of Unsupported Pd Aerogel for High Performance Formic Acid Microfluidic Fuel Cell." Materials 15, no. 4 (2022): 1422. http://dx.doi.org/10.3390/ma15041422.

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In this work, unsupported Pd aerogel catalysts were synthesized for the very first time by using microwaves as a heating source followed by a lyophilization drying process and used towards formic acid electro-oxidation in a microfluidic fuel cell. Aerogels were also made by heating in a conventional oven to evaluate the microwave effect during the synthesis process of the unsupported Pd aerogels. The performance of the catalysts obtained by means of microwave heating favored the formic acid electro-oxidation with H2SO4 as the electrolyte. The aerogels’ performance as anodic catalysts was carri

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Ching-Lin, Ho, Kuo Shu-Lung, and Kao I-Chan. "Study of the Degradation Efficiency of Glyphosate in Soils Using Microwave Heating Treatment." European Journal of Advances in Engineering and Technology 9, no. 12 (2022): 46–50. https://doi.org/10.5281/zenodo.10647070.

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<strong>ABSTRACT</strong> Thermal treatment has long played a significant role in ex-situ soil remediation. Although it has a significant effect on eliminating semi-volatile and volatile organic compounds and is highly applicable to partial remediation of severely-contaminated soils, there are still limitations to such technology. On the other hand, not only can microwave heating treatment conserve time and energy, but it is also eco-friendly and can overcome difficulties encountered when applying traditional heating methods. Hence, microwave heating treatment will become a valuable technology

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Sulaiman, Muataz, and Ahmed Amer Al-Salman. "CFD Analysis of Operation Variables Impact on Microwave-Assisted Water Heating." Physical Sciences, Life Science and Engineering 2, no. 1 (2024): 14. https://doi.org/10.47134/pslse.v2i1.318.

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Microwaves are the best technique for thermal sensitive materials processes performing high temperature with short time and less consumption of energy in addition to perfect control. Microwave heating technique has a faster heating rate compared to conventional heating methods. Microwave process consists QVF tube of 240 mm length and 17 mm internal diameter which located in the center of microwave oven (2.45GHz). The experiments involve the flow rate of the water is (2, 4, and 6) l/hr and the power of the oven are (500, 750, 1000, and 1250) W. The temperature of the water increased by increasi

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Kouzaev, Guennadi A. "Microwave-assisted heating in a novel thin film-liquid spinning coaxial reactor." AIMS Mathematics 8, no. 4 (2024): 478–97. http://dx.doi.org/10.3934/electreng.2024023.

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<p>This paper introduces a novel rotating reactor designed for microwave-assisted heating and chemical processes. It consists of a sealed coaxial waveguide with a dielectric hollow mixer that rotates along the length of the central conductor. A heating liquid flows in a narrow gap between this rotor and the outer shield of the coaxial waveguide, powered by microwaves. It is hypothesized that the acceleration of the conversation rate of chemical reactions is due to the excitation of micro-vortices for better mixing and the direct application of microwaves to a mix of polar reagents within

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Khan, Haris Mahmood, Tanveer Iqbal, M. A. Mujtaba, Manzoore Elahi M. Soudagar, Ibham Veza, and I. M. Rizwanul Fattah. "Microwave Assisted Biodiesel Production Using Heterogeneous Catalysts." Energies 14, no. 23 (2021): 8135. http://dx.doi.org/10.3390/en14238135.

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As a promising renewable fuel, biodiesel has gained worldwide attention to replace fossil-derived mineral diesel due to the threats concerning the depletion of fossil reserves and ecological constraints. Biodiesel production via transesterification involves using homogeneous, heterogeneous and enzymatic catalysts to speed up the reaction. The usage of heterogeneous catalysts over homogeneous catalysts are considered more advantageous and cost-effective. Therefore, several heterogeneous catalysts have been developed from variable sources to make the overall production process economical. After

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Nanayakkara, T. R., R. L. Samaraweera, A. Kriisa, et al. "Influence of microwave photo-excitation on the transport properties of the high mobility GaAs/AlGaAs 2D electron system." MRS Advances 4, no. 61-62 (2019): 3347–52. http://dx.doi.org/10.1557/adv.2020.30.

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ABSTRACTWe examined the influence of the microwave power on the diagonal resistance in the GaAs/AlGaAs two dimensional electron system (2DES), in order to extract the electron temperature and determine microwave induced heating as a function of the microwave power. The study shows that microwaves produce a small discernable increase in the electron temperature both at null magnetic field and at finite magnetic fields in the GaAs/AlGaAs 2DES. The heating effect at null field appears greater in comparison to the examined finite field interval, although the increase in the electron temperature in

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Malecha, Karol, Jan Macioszczyk, Piotr Slobodzian, and Jacek Sobkow. "Application of microwave heating in ceramic-based microfluidic module." Microelectronics International 35, no. 3 (2018): 126–32. http://dx.doi.org/10.1108/mi-11-2017-0062.

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Purpose This paper aims to focus on the application of low temperature co-fired ceramic (LTCC) technology in the fabrication of a microfluidic module with integrated microwave components. The design, technology and performance of such an LTCC-based module is investigated. The rapid heating of liquid samples on a microliter scale is shown to be possible with the use of microwaves. Design/methodology/approach The developed microwave-microfluidic module was fabricated using well-known LTCC technology. The finite element method was used to design the geometry of the microwave circuit. Various nume

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Nan, Senlin, Wentao Li, Weiming Guan, et al. "Research on the Rapid Strengthening Mechanism of Microwave Field-Controlled Gypsum-Cemented Analog Materials." Minerals 11, no. 12 (2021): 1348. http://dx.doi.org/10.3390/min11121348.

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Various geotechnical experiments have used gypsum-cemented analog geotechnical materials. However, this material needs a long curing time, and the target strength is not easy to control. Therefore, this research adopted microwave heating as the curing method for this kind of material. Objectively, the authors investigated the variations in the material strength versus heating power and heating time. On this basis, we clarified the influence mechanism of microwaves on the strength of analog materials by analyzing material temperature, moisture content, and microstructure, which eventually led t

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