Search results

1

Thermoacoustic tomography: A novel method for early breast tumor detection

100%

Lin H., Weizhi Q., Jinyu X., Yuan Z., Zihui C., Dan W., Jian R., Dakun L.

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2014

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vol. 1

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issue 1

EN

This article presents a comprehensive review on a non-invasive, high resolution and high contrast imaging modality, called thermoacoustic tomography (TAT). Details about the principles, history and future directions of TAT are described.

2

High Pressure Synthesis versus Calcination – Different Approaches to Crystallization of Zirconium Dioxide

100%

Kaszewski J., Yatsunenko S., Pełech I., Mijowska E., Narkiewicz U., Godlewski M.

Polish Journal of Chemical Technology

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2014

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vol. 16

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issue 2

99-105

EN

Calcination and microwave-assisted hydrothermal processing of precipitated zirconium dioxide are compared. Characterization of synthesized products of these two technologies is presented. The infiuence of thermal treatment up to 1200oC on the structural and spectroscopic properties of the so-obtained zirconium dioxide is examined. It was found that initial crystallization of material inhibits the crystal growth up to the 800oC (by means of XRD and TEM techniques), while the material crystallized from amorphous hydroxide precursor at 400oC, exhibits 26 nm sized crystallites already. It was found using the TG technique that the temperature range 100–200oC during the calcination process is equivalent to a microwave hydrothermal process by means of water content. Mass loss is estimated to be about 18%. Based on X-ray investigations it was found that the initial hydroxide precursor is amorphous, however, its luminescence activity suggests the close range ordering in a material.

3

One-Pot Synthesis of Dibenz[b,f][1,4]oxazepines via Mg(ClO4)2-Catalyzed Ugi Four-Component Reaction and Microwave-Assisted Intramolecular SNAr

88%

Luo J., Wu J., Dai W.-M.

Diversity Oriented Synthesis

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2012

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vol. 1

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issue 1

EN

A general one-pot synthesis of dibenz[b,f][1,4] oxazepine-11(10H)-carboxamides is described. The Ugi four-component reaction (U-4CR) of 2-aminophenols, cyclohexyl isocyanide, 2-chloro-5-nitrobenzaldehyde, and 2-bromobenzoic acids in MeOH in the presence of 25 mol% Mg(ClO4)2 at 30-40 .C for 22-95 h gave the linear Ugi products. The latter were treated with aqueous K2CO3 in MeOH under microwave heating at 120 .C for 10 min for promoting the intramolecular nucleophilic aromatic substitution (SNAr), affording the 6/7/6-fused tricyclic heterocycles in 61-85% yields.

4

A Comparative Study of the Feasibility of Cellular MAX Phase Preforms Formation by Microwave-Assisted SHS and SPS Techniques

75%

Dmitruk A., Lagos M., Naplocha K., Egizabal P., Dmitruk A., Lagos M., Naplocha K., Egizabal P.

Archives of Metallurgy and Materials

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2020

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vol. 65

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issue 2

5

Assessment of some physical measures as safe and environmentally friendly alternative control agents for some common coleopteran insects in stored wheat products

75%

Draz K. A., Mohamed M. I., Tabikha R. M., Darwish A. A., Abo-Bakr M. A., Draz K. A., Mohamed M. I., Tabikha R. M., Darwish A. A., Abo-Bakr M. A.

Journal of Plant Protection Research

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2021

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vol. 61

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issue 2

6

Manufacturing of Al Alloy Matrix Composite Materials Reinforced with MAX Phases

75%

Dmitruk A., Naplocha K.

Archives of Foundry Engineering

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2018

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issue 2

Refine search results

Thermoacoustic tomography: A novel method for early breast tumor detection

High Pressure Synthesis versus Calcination – Different Approaches to Crystallization of Zirconium Dioxide

One-Pot Synthesis of Dibenz[b,f][1,4]oxazepines via Mg(ClO4)2-Catalyzed Ugi Four-Component Reaction and Microwave-Assisted Intramolecular SNAr

A Comparative Study of the Feasibility of Cellular MAX Phase Preforms Formation by Microwave-Assisted SHS and SPS Techniques

Assessment of some physical measures as safe and environmentally friendly alternative control agents for some common coleopteran insects in stored wheat products

Manufacturing of Al Alloy Matrix Composite Materials Reinforced with MAX Phases