Radio-Frequency Processing

Orsat, Valérie; Raghavan, G.S.V.

doi:10.1016/b978-0-12-411479-1.00021-8

Cited by 15 publications

(9 citation statements)

References 81 publications

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“…Radio frequency (RF) heating, defined by having an operating frequency from approximately 3 kHz to 300 MHz, is a largely unexplored method for heating of nanocomposite materials. Much of the historic use and research of RF heating has been focused on food processing, − RF bonding or curing of materials, , drying of raw materials, and biomedical hyperthermia or ablation. − Thermoset adhesives with high dielectric loss have been cured using high power RF energy . To date, most of the literature has focused on RF heating of nanocomposites for hyperthermia applications − or inductively coupled RF heating of nanocomposites. , (Note that induction heating is only efficient for materials with magnetic hysteresis losses, or with extraordinarily high magnetic fields for conductive composites; in the case of carbon nanotube (CNT)-loaded composites, induction heating is highly inefficient, and only works at short ranges when the material is placed inside the solenoid or just outside it.…”

Section: Introductionmentioning

confidence: 99%

Radio Frequency Heating of Carbon Nanotube Composite Materials

Sweeney¹,

Moran²,

Gruener³

et al. 2018

ACS Appl. Mater. Interfaces

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Here, we give the first-ever report of radio frequency (RF) electromagnetic heating of polymer nanocomposite materials via direct-contact and capacitively coupled electric field applicators. Notably, RF heating allows nanocomposite materials to be resistively heated with electric fields. We highlight our novel RF heating technique for multiwalled carbon nanotube (MWCNT) thermoplastic composites and measure their broadband dielectric properties. We also demonstrate three different electric field applicator configurations and discuss their practical use in an industrial setting. We demonstrate the use of RF heating to cure an automotive-grade epoxy loaded with MWCNTs. Our results show that lap shear joints cured faster with the RF method compared with control samples cured in an oven because of the heat-transfer advantages of directly heating the epoxy composite. Finally, we implement our RF curing technique to assemble an automotive structure by locally curing an epoxy adhesive applied to a truck chassis.

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Section: Introductionmentioning

confidence: 99%

Radio Frequency Heating of Carbon Nanotube Composite Materials

Sweeney¹,

Moran²,

Gruener³

et al. 2018

ACS Appl. Mater. Interfaces

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“…The structure of the radiofrequency heating system is simpler compared to the microwave, in addition to being able to penetrate deeper into the food because of its longer wavelengths and more uniform field patterns. Radiofrequency heating is now generally used on an industrial scale for drying processes in the textile, paper, and biscuit industries (Orsat & Raghavan, 2014 ). Recently, this method has been employed to decontaminate solid foods.…”

Section: New Technologiesmentioning

confidence: 99%

Decontamination technologies for medicinal and aromatic plants: A review

Rahmati

Khoshtaghaza

Banakar

et al. 2022

Food Science & Nutrition

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The use of medicinal and aromatic plants (MAPs) dates back to the ancient Egyptians and today they are used in most countries in the food and pharmaceutical industries. MAPs, due to their active substances such as essential oils, flavonoids, alkaloids, minerals, and nutrients, have therapeutic and nutritional properties with regard to their structure (Barata et al., 2016;Embuscado, 2015;Yilmaz, 2020). These properties are obtained from different parts of the plant, such as leaves, roots, flowers, fruits, and seeds (Saha & Basak, 2020). According to the World Health Organization (WHO), approximately 60% of the world's population rely on these plants

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“…As a first step, we pass or interface access to a patient or the patient new interface chosen in this case the interface command IE directly either through interface protocol which contains several interfaces [7] for each protocol injection of the contrast material) that offers insert direct injection settings, so that subsequently skips [8] to the interface command IE. For the PS technology interface [9], it passes either interface access to a patient a new interface, so we choose in this case the PS command interface directly [10].…”

Section: Development Of Managaement and Handling Interfacementioning

confidence: 99%

Complex ESP Systems Proposal based on Pump Syringe and Electronically injector Modules for Medical Application

Hamrouni¹

2020

J Multimed Inf Syst

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The paper focuses on conception and development of complex systems composed mainly by a pump syringe subsystem and an electronically injector that facilitates patients saving data operation for medical staff use. We successfully developed conventional approaches for medical system staff requirements, such as system boundary conditions. Decisions at a given level are studied. We propose a complex system architecture, based mainly on patients collected data and ordered stepper injection parameters. System is successfully simulated and prototyped. Design and implement tests are accomplished, the proposed system ensures both the electric syringe pump and the electric injector operation. In addition, this new system introduces several additional options as patient database development and automation injection operation. Development and software operating tests to create a visualization control interface are validated. The solution performs syringe function and electronic injector. User can manage a syringe in two C modes of technology. We propose a program composed of two linked parts. If an error such radiologist bad target selection is made, an image with lower intrinsic quality emerges. Developed Shoot syringe different electronic cards are simulated and prototyped, in addition, maps are driven, prototype. All tests results are accomplished.

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Radio-Frequency Processing

Cited by 15 publications

References 81 publications

Radio Frequency Heating of Carbon Nanotube Composite Materials

Radio Frequency Heating of Carbon Nanotube Composite Materials

Decontamination technologies for medicinal and aromatic plants: A review

Complex ESP Systems Proposal based on Pump Syringe and Electronically injector Modules for Medical Application

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