Special Issue "Physics and Mechanics of New Materials and Their Applications"

A special issue of Applied Sciences (ISSN 2076-3417).

Deadline for manuscript submissions: closed (15 November 2018).

Special Issue Editors

Prof. Yun-Hae Kim
E-Mail Website
Guest Editor
Department of Ocean Advanced Materials Convergence Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan, Korea
Interests: Nanocomposites, Strength Evaluation, Composites Fabrication, Polymer Matrix Composites, Composites Processing, Environmental Friendly Materials
Prof. Ivan A. Parinov
E-Mail
Guest Editor
I. I. Vorovich Mathematics, Mechanics, and Computer Science Institute, Southern Federal University, Rostov-on-Don, Russia
Interests: microstructure; superconductivity; superconductors; piezoelectric ceramics; piezoelectric composites; piezoelectric devices; energy harvesting; optics
Special Issues and Collections in MDPI journals
Prof. Shun-Hsyung Chang
E-Mail Website
Guest Editor
Department of Microelectronic Engineering, National Kaohsiung University of Science and Technology, Taiwan, ROC
Interests: signal processing; electrical engineering; signal analysis; time–frequency analysis; transducers; ultrasonics; piezoelectricity; array signal processing; adaptive beamforming
Special Issues and Collections in MDPI journals
Prof. Hung-Yu Wang
E-Mail Website
Guest Editor
Department of Electronic Engineering, National Kaohsiung University of Science and Technology, Taiwan
Interests: analog IC design; circuit theory; analysis and synthesis; applied electronics design; signal processing

Special Issue Information

Dear Colleagues,

To boost the development of artificial intelligent technology, better performance of sensing devices and successive signal processing are prerequisites. For enhancing the performance of sensing devices, the mechanical investigation of related materials, circuits and applications are critical. The present Special Issue aims to explore new trends in physics and the mechanics of new materials and their applications. A certain number of contributions for this Special Issue will come from selected papers of PHENMA 2018 Busan, the 7th “International conference on Physics and Mechanics of New Materials and Their Applications”.

https://phenma2018.wordpress.com

Topics of interest (among others) include:

Materials: Ferro-Piezoelectrics, Semiconductors, High-temperature Superconductors, Environmental Materials, Medical Materials, Composite, Ceramics, Thin Films, Nanomaterials, New Materials for Additive Manufacturing, etc.

Energy Harvesting: Materials, Methods and Applications

Synthesis and Processing: Powder Processing, Processing Technologies, Piezoelectric Technologies, MEMS-Processing, etc.

Characterization and Research Methods: Microstructure Properties, Physical Properties, Mechanical Properties, Strength Properties, Finite-Element Modeling, Mathematical Modeling, Physical Modeling, Physical Experiment, etc.

Applications: MEMS, Hetero-structures, Piezotransducers, Piezoactuators, Piezogenerators, Superconductive Devices, Light-Emitting Diodes, Multimedia Communication, Fiber Reinforced Composites, condition monitoring, Lubricant and Tribology, etc.

Underwater Technologies: Underwater Communication, Marine Engineering, Power System, Ocean Energy, etc.

Prof. Yun-Hae Kim
Prof. Ivan A. Parinov
Prof. Shun-Hsyung Chang
Prof. Hung-Yu Wang
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 papers will be 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. Applied Sciences 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 1800 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 (9 papers)

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Research

Open AccessArticle
Insertion of a Graphene Oxide Layer into a Cu/SiO2/Pt Structure to Overcome Performance Degradation in a Vaporless Environment
Appl. Sci. 2019, 9(7), 1432; https://doi.org/10.3390/app9071432 - 05 Apr 2019
Abstract
A Cu/SiO2/Pt structure is usually used to study the resistive memory properties of an electrochemical resistive random access memory. It can be reversibly switched between low- and high-resistance states by using DC voltages in the atmosphere. However, its resistive switching behavior [...] Read more.
A Cu/SiO2/Pt structure is usually used to study the resistive memory properties of an electrochemical resistive random access memory. It can be reversibly switched between low- and high-resistance states by using DC voltages in the atmosphere. However, its resistive switching behavior disappears in a vaporless environment because no conducting filaments can be formed within the Cu/SiO2/Pt structure. This study inserted a graphene oxide (GO) layer to fabricate a Cu/GO/SiO2/Pt structure that could be resistively switched in a vaporless environment. The X-ray photoelectron spectra depth profile of the Cu/GO/SiO2/Pt structure showed that oxygen-related groups of the GO film reacted with the Cu electrode. The GO film assisted Cu ionization in a vaporless environment, and Cu ions could migrate in an electrical field to the Pt electrode. Cu conducting filaments were formed and ruptured by different polarity voltages, and the resistance of the Cu/GO/SiO2/Pt structure could be reversibly switched in a vaporless environment. A schematic model was proposed to explain the switching mechanisms in the atmosphere and a vaporless environment. Full article
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications)
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Open AccessArticle
Developmental Screening System for Patient Vibration Signals with Knee Disorder
Appl. Sci. 2019, 9(5), 908; https://doi.org/10.3390/app9050908 - 04 Mar 2019
Abstract
In this paper, we introduce a simple sound signal diagnostic method to evaluate anterior cruciate ligament (ACL) injury before and after reconstructive surgery. Sixty-five recruited participants were divided into control (n = 27) and experimental (n = 38) groups. Dynamic time warping of [...] Read more.
In this paper, we introduce a simple sound signal diagnostic method to evaluate anterior cruciate ligament (ACL) injury before and after reconstructive surgery. Sixty-five recruited participants were divided into control (n = 27) and experimental (n = 38) groups. Dynamic time warping of sound signals was applied to evaluate the healthy and injured limbs before surgery with those after surgery via analysis of variance and Z-test analysis. In the control group, the average differences among three sensing points ranged from 7.7 ± 3.4 to 18.9 ± 10.6, over the frequency range of 250 Hz to 4 kHz. In the experimental group, the average differences were between 6.2 ± 2.8 and 57.4 ± 21.3. The greatest significant wavelet coefficient difference was observed in the range of 125–250 Hz. Our preliminary results demonstrate that the proposed approach produces significant signal variations at the ACL test point (TPACL) with regard to identifying ACL injury, with swing cycles conducted within the 4-kHz band of 1–7 wavelet coefficients. Thus, wavelet analysis of knee sound can be used to evaluate the recovery status after single ACL reconstruction surgery. After a 1-year follow-up of the 38 patients with ACL injury, the frequency band difference among sensing points was reduced from 274% to approximately 600%. Full article
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications)
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Open AccessArticle
Evaluate the Medial Muscle Strength by Kick Training between the Standing and Sitting Postures
Appl. Sci. 2019, 9(4), 718; https://doi.org/10.3390/app9040718 - 19 Feb 2019
Abstract
In order to ameliorate the anterior knee pain or peripheral pain around the tibia caused by patellar lateral subluxation, we evaluated the kick training effects of standing or sitting postures in strengthening the vastus medialis obliquus (VMO) on the quadriceps femoris muscle. A [...] Read more.
In order to ameliorate the anterior knee pain or peripheral pain around the tibia caused by patellar lateral subluxation, we evaluated the kick training effects of standing or sitting postures in strengthening the vastus medialis obliquus (VMO) on the quadriceps femoris muscle. A total of 83 subjects (45 male; 38 female) in both sitting and standing positions performed 10° to 90° leg lift and kick training. Among the male group, the effect of the sitting posture was better than that of the standing posture, 74.31% of the former achieved the training goal. In the female group, the effect of a standing posture was better than that of a sitting posture, for which only 37.71% of the latter achieved the training purpose. However, a ratio of 84.34% in the female group showed that the strength of VMO on the quadriceps femoris muscle generated by leg kicking was greater than the strength generated by walking. While it was impossible to immediately achieve a greater effect of VMO on the quadriceps femoris muscle than vastus lateralis on the quadriceps femoris muscle, leg kicking did achieve the objective of enhancing the strength of VMO on the quadriceps femoris muscle. Full article
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications)
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Open AccessArticle
Enhanced Pathological Element-Based Symbolic Nodal Analysis
Appl. Sci. 2019, 9(1), 93; https://doi.org/10.3390/app9010093 - 27 Dec 2018
Abstract
An improved symbolic analysis procedure to enhance the analytic efficiency of the reported symbolic nodal analysis is presented. Two techniques are adopted in the proposed method to reduce the order of the system of equations when performing symbolic analysis. The first one uses [...] Read more.
An improved symbolic analysis procedure to enhance the analytic efficiency of the reported symbolic nodal analysis is presented. Two techniques are adopted in the proposed method to reduce the order of the system of equations when performing symbolic analysis. The first one uses voltage signal sources directly to perform symbolic analysis without replacing them with their nullor equivalences. The second one uses the nullor, grounded mirror, and floating mirror elements to model the active devices that involve differential or multiple single-ended signals. Practical examples are given which demonstrate the feasibility of the proposed methods. Full article
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications)
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Open AccessArticle
Efficacy of Indigenously Prepared Sugarcane and Pineapple Wine Solvents for Washing Highly Dioxin-Contaminated Field Soils
Appl. Sci. 2019, 9(1), 61; https://doi.org/10.3390/app9010061 - 25 Dec 2018
Cited by 1
Abstract
Poly-chlorinated dibenzo-p-dioxins (PCDDs) and poly-chlorinated dibenzo-furans (PCDFs) negatively affect human health and are often found as unwanted by-products of chemical handling and manufacture procedures. While commercial solvents have been used to remove dioxins from contaminated soil, these solvents themselves may adversely affect soil [...] Read more.
Poly-chlorinated dibenzo-p-dioxins (PCDDs) and poly-chlorinated dibenzo-furans (PCDFs) negatively affect human health and are often found as unwanted by-products of chemical handling and manufacture procedures. While commercial solvents have been used to remove dioxins from contaminated soil, these solvents themselves may adversely affect soil health. In this study, we examined the effects of washing highly PCDD/F contaminated field-soil with two natural solvents (sugarcane and pineapple wine) under ambient temperature. Performing an initial three-washing-cycle experiment, we found that sugarcane wine more effectively removed the contaminants than pineapple wine (removal, 60% vs. 50%) and chose it to perform a six-washing-cycle experiment facilitated by mechanical stirring and ultrasonication. Sugarcane wine was found to have a high removal efficiency (almost 80%), largely due to its higher alcohol and acid content. We believe that both wines can be used in soil remediation tasks without further damage to soil health. This is the first study employing naturally made wines as soil washing solvents in treating highly PCDD/F contaminated field soil. After soil washing processes, the winery solvents are believed to be beneficial to (if necessary) bioremediation methods and/or monitored natural attenuation. Full article
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications)
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Open AccessArticle
Features of the Formation of the Crystal Structure, Grain Structure, Dielectric and Thermophysical Properties of Bismuth Ferrite Doped with Erbium
Appl. Sci. 2018, 8(11), 2183; https://doi.org/10.3390/app8112183 - 07 Nov 2018
Abstract
The crystal structure and surface morphology of ceramics as well dielectric and thermal properties of Bi1−xErxFeO3 (where x = 0.05 − 0.20, Δх = 0.05) magnetoelectric solid solutions (SS) were investigated. The regularities of changes in [...] Read more.
The crystal structure and surface morphology of ceramics as well dielectric and thermal properties of Bi1−xErxFeO3 (where x = 0.05 − 0.20, Δх = 0.05) magnetoelectric solid solutions (SS) were investigated. The regularities of changes in phase composition, microstructure, electrical and dielectric properties of objects at room temperature are established. Full article
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications)
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Open AccessArticle
Determination of the Electromagnetic Field on the Surface of the Beam Splitter of Laser Interferometer by Measuring the Displacements of Control Object Surfaces
Appl. Sci. 2018, 8(11), 2137; https://doi.org/10.3390/app8112137 - 02 Nov 2018
Cited by 1
Abstract
The paper describes in detail the governing relationships for the electromagnetic field on the surface of the laser beam splitter of a laser interferometer. These expressions are intended for numerical simulation of measuring the displacements of control object surfaces by using a laser [...] Read more.
The paper describes in detail the governing relationships for the electromagnetic field on the surface of the laser beam splitter of a laser interferometer. These expressions are intended for numerical simulation of measuring the displacements of control object surfaces by using a laser interferometer. We consider the cases of perpendicular and parallel polarizations of the radiation source. Moreover, the most relevant particular cases of constructing optical circuits of the interferometer in question are treated. The presented theoretical results have been used in numerical studies of the functional characteristics of promising contactless optical means of measuring displacements. The use of the described results has improved the quality and informativeness of the numerical simulation results of the measurement process of displacements by a laser interferometer. Full article
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications)
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Open AccessArticle
Structurization, Phase Rule Diagram, Relaxation Processes and Radio-Absorbing Properties of Solid Solutions Based on a Binary System BaNb2O6-SrNb2O6
Appl. Sci. 2018, 8(10), 1932; https://doi.org/10.3390/app8101932 - 16 Oct 2018
Cited by 1
Abstract
The investigation results of the processes of phase formation in barium niobate, strontium, and their solid solutions in the conditions of the variability of the thermodynamic background are presented. The formation of a grain landscape and dielectric properties (including relaxation phenomena) in the [...] Read more.
The investigation results of the processes of phase formation in barium niobate, strontium, and their solid solutions in the conditions of the variability of the thermodynamic background are presented. The formation of a grain landscape and dielectric properties (including relaxation phenomena) in the solid solutions of strontium niobate and their solid solutions and the establishment of regularities in the formation of radio-absorbing properties in them are studied. Full article
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications)
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Open AccessArticle
Thermodynamic Prehistory in the Formation of the Internal Structure of Highly Stable Ferroelectric Materials
Appl. Sci. 2018, 8(10), 1897; https://doi.org/10.3390/app8101897 - 12 Oct 2018
Abstract
We investigated and presented our results for the dependence of the characteristics of the crystalline and grain structures of the PCR-13 material (based on the lead zirconate titanate (PZT) system), which was sintered in various ways, on the regulations for its preparation. The [...] Read more.
We investigated and presented our results for the dependence of the characteristics of the crystalline and grain structures of the PCR-13 material (based on the lead zirconate titanate (PZT) system), which was sintered in various ways, on the regulations for its preparation. The data from the microfluorescence analysis of the surface of ceramic materials were provided, which allowed us to state that micro X-ray fluorescence spectrometry (MICRO–XRF), supplemented by mathematical statistics, allows us to trace even small changes in the chemical composition of ceramic samples, reliably characterize the degree of surface homogeneity and provide strict mathematical conclusions related to the reproducibility of the properties of manufactured piezoelectric ceramic materials. Based on the obtained data, the optimal conditions for ceramics have been selected, which ensure homogeneity, high-density structure and reproducibility of the characteristics. This allows us to reliably use the material in frequency-selective equipment. Full article
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications)
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