نتایج جستجو برای: microwave heating

تعداد نتایج: 103154  

2014
John L. Volakis

Hyperthermia is a form of cancer treatment in which affected human tissue is exposed to >40°C temperature. In this paper, our goal is to assess the efficacy of fullerene agents to reduce heating time for cancer treatment. Such agents can accelerate heating of cancer cells and improve hyperthermia treatment efficacy. Typically, in vitro testing involves cancer cell culturing, heating cell cultur...

Journal: :Chemical communications 2014
Xiaoqing Yang Jie Wu Xianwen Mao Timothy F Jamison T Alan Hatton

An effective transformation of alkenes into cyclic carbonates has been achieved using NaHCO3 as the C1 source in acetone-water under microwave heating, with selectivities and yields significantly surpassing those obtained using conventional heating.

2015
Lovisa Eliasson Sven Isaksson Maria Lövenklev Lilia Ahrné

There is currently a need in developing new decontamination technologies for spices due to limitations of existing technologies, mainly regarding their effects on spices' sensory quality. In the search of new decontamination solutions, it is of interest to compare different technologies, to provide the industry with knowledge for taking decisions concerning appropriate decontamination technolog...

2013
Prafulla D. Patil Veera Gnaneswar Gude Harvind K. Reddy Tapaswy Muppaneni Shuguang Deng

A comparative study of biodiesel production from waste cooking oil using sulfuric acid (Two-step) and microwaveassisted transesterification (One-step) was carried out. A two-step transesterification process was used to produce biodiesel (alkyl ester) from high free fatty acid (FFA) waste cooking oil. Microwave-assisted catalytic transesterification using BaO and KOH was evaluated for the effica...

Journal: :Analytical chemistry 2002
Guohua Xiong Janusz Pawliszyn

Microwave heating was employed for preparation of the standard gas of volatile organic compounds (VOCs) and semivolatile organic compounds (semi-VOCs) by using a 1000 W commercial domestic microwave oven and 1 L gas-sampling bulbs. The VOCs investigated were benzene, chloroform, 1,3-dichlorobenzene, tetrachloroethylene, toluene, and 1,1,2-trichloroethane, and the semi-VOCs used were the polychl...

1999
David Y. Yuan Jonathan W. Valvano Eric N. Rudie Lisa X. Xu

Accurate prediction of temperatures in the prostate undergoing thermally-based treatments is crucial to assessing efficacy and safety. A two-dimensional transient finite difference model for predicting temperatures in prostate undergoing microwave heating via a transurethral fluid-cooled catheter is presented. Unconditional stability and good accuracy are achieved by using the alternating direc...

2007
C J Budd

Microwave heating is an essential technique for cooking a wide variety of foodstuffs in both domestic and commercial applications. However, the simulation of this process remains problematic because of the complexity of both calculating a varying electromagnetic field and also determining how this interacts with the foodstuff (which is typically a complex multi-phase material). In one-dimension...

2012
Aimin Chang Huimin Zhang Qing Zhao Bo Zhang

Microwave sintering is a new sintering technology developed in the middle to late period of the 1980’s, which is characterized by fast densification for ceramic materials[1]. In recent years, microwave heating has been well employed in the field of sintering and joining of ceramics as a result of its advantages against conventional methods. These ceramic materials include oxides, mixed oxides, ...

2012
Rina Das Dinesh Mehta Harsh Bhardawaj

Microwave-assisted organic synthesis is an enabling technology for accelerating drug discovery and development processes. Microwave organic synthesis opens up new opportunities to the synthetic chemist in the form of new reaction that are not possible by conventional heating and serve a flexible platform for chemical reaction. This review focuses on the advances in the developing of innovative ...

2017
Candice Ellison Murat Sean McKeown Samir Trabelsi Dorin Boldor

Material dielectric properties are important for understanding their response to microwaves. Carbonaceous materials are considered good microwave absorbers and can be mixed with dry biomasses, which are otherwise low-loss materials, to improve the heating efficiency of biomass feedstocks. In this study, dielectric properties of pulverized biomass and biochar mixtures are presented from 0.5 GHz ...

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