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Electron Beam, Gamma-Ray, Microwave, and Ultrasound Applications in Chemical Synthesis and Material Processing

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 2168

Special Issue Editors


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Guest Editor
Department of Bioresources and Polymer Science, University POLITEHNICA of Bucharest, 1-7 Ghe.Polizu, 011061 Bucharest, Romania
Interests: microwave chemistry; sonochemistry; biorefineries; bioproducts; pollution control; green chemistry

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Guest Editor
Institute of Nuclear Chemistry and Technology (INCT), Dorodna 16, 03-195 Warsaw, Poland
Interests: radiation chemistry; environmental chemistry; radio and nuclear chemistry; environmental protection technology; chemical processes; pollution control

Special Issue Information

Dear Colleagues,

At present, due to resource depletion and waste increase, stricter legislation has been put into place for highly efficient material production and less waste generation. 

This Special Issue will focus on the study and application of certain developing fields such as electron beam, gamma-ray, microwave, and ultrasound in environmental protection, chemical synthesis, material modification, and processing. Original and innovative contribution regarding laboratory research, industrial development, and computer simulations of the complex physicochemical processes involved in these technologies will be included in this issue. These new technologies require special types of sensors.

Potential topics include but are not limited to:

  • New applications for these technologies;
  • Sensors for different types of measurements possible to be used in the microwave/ultrasound/electron beam or g-ray field;
  • Modification of the physicochemical properties when applying independent or combined different types of irradiation

Prof. Dr. Ioan Calinescu
Prof. Dr. Yongxia Sun
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (1 paper)

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12 pages, 5891 KiB  
Letter
Experimental Study on Dispersion Effects of F (1,1) Wave Mode on Thin Waveguide When Embedded with Fluid
by Nishanth Raja and Krishnan Balasubramaniam
Sensors 2021, 21(2), 322; https://doi.org/10.3390/s21020322 - 06 Jan 2021
Cited by 7 | Viewed by 1731
Abstract
This paper reports the simultaneous generation of multiple fundamental ultrasonic guided wave modes L(0,1), T(0,1), and F(1,1) on a thin wire-like waveguide (SS-308L) and its interactions with liquid loading in different attenuation dispersion regimes. An application towards liquid level measurements using these dispersion [...] Read more.
This paper reports the simultaneous generation of multiple fundamental ultrasonic guided wave modes L(0,1), T(0,1), and F(1,1) on a thin wire-like waveguide (SS-308L) and its interactions with liquid loading in different attenuation dispersion regimes. An application towards liquid level measurements using these dispersion effects was also demonstrated. The finite element method (FEM) was used to understand the mode behavior and their dispersion effects at different operating frequencies and subsequently validated with experiments. In addition, the ideal configuration for the simultaneous generation of at least two modes (L(0,1), T(0,1), or F(1,1)) is reported. These modes were transmitted/received simultaneously on the waveguide by an ultrasonic shear wave transducer aligned at 0°/45°/90° to the waveguide axis. Level measurement experiments were performed in deionized water and the flexural mode F(1,1) was observed to have distinct dispersion effects at various frequency ranges (i.e., >250 kHz, >500 kHz, and >1000 kHz). The shift in time of flight (TOF) and the central frequency of F(1,1) was continuously measured/monitored and their attenuation dispersion effects were correlated to the liquid level measurements at these three operating regimes. The behavior of ultrasonic guided wave mode F(1,1) when embedded with fluid at three distinct frequency ranges (i.e., >250 kHz, >500 kHz, and >1000 kHz) were studied and the use of low frequency Regime-I (250 kHz) for high range of liquid level measurements and the Regime-II (500 kHz) for low range of liquid level measurements using the F(1,1) mode with high sensitivity is reported. Full article
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