Poster-presentations of the authors will be posted on 10/20/2021
iA Young Researcher
ID: Hall 17, Report 70
High power terahertz wave emission using DAST crystal
Shizuoka University, ARKRAY Inc., Institute for Molecular Science (IMS)
In the study, we studied the terahertz wave emitted by DAST crystal with and without anti reflection coating We found that the power of terahertz wave generated by DAST crystal with AR coating is higher than the power of terahertz wave generated by DAST crystal without AR coating
ID: Hall 9, Report 21
Applications for effective representation of imaging with X-ray CT
CT allows us to observe the 3D voxel internal structure of an object but the represent method of CT data is still displaying cross sections in 2D images. Two representing system by AR and VR are proposed, and these systems allow users to observe the object at any angle intuitively and confirm the cross-sectional image.
ID: Hall 1, Young Researcher, Report 75
Spatial Resolution of X-ray Imaging using 80µm pitch TlBr Detector
1 ANSeeN Inc., Shizuoka University, Tohoku University
TlBr detector is higher resolution than scintillator type detector because TlBr detector can directly convert X-ray photons into electron-hole pairs. We create pixelated TlBr detector for high resolution X-ray imaging. We researched pixelated TlBr detector behavior such as spatial resolution and stability over time.
Bio- and environmental engineering
ID: Hall 19
In vivo measurement of dielectric properties of human skin using attenuated total reflection terahertz time domain spectroscopy
Department of Mechanical Engineering, Shizuoka University, 3
The applications of terahertz waves have been increasing rapidly in different fields. With the rapid development of such applications, encounters between THz waves and humans are expected to become common. Therefore, it is important to have the knowledge of terahertz properties of human skin in order to understand the interaction of THz wave with human skin. In this study, we developed attenuated total reflection THz time domain spectroscopy and measured the refractive index and absorption coefficient of skin in the frequency range of 200GHz to 2THz. This information help understand the terahertz wave interaction with human skin and other possible biomedical application of THz wave.
ID: Hall 20, Report 3
The proton beam influence on the sensitivity of wheat plantlets to AgNP pollution - preliminary results
Alexandru Ioan Cuza University, Joint Institute for Nuclear Research
We highlight that for the experiments involving seed irradiation (proton irradiation and AgNP supply), we correlate the quantitative results with other studies from the literature pointing the influence of two complementary mechanism of action: harmful free radical generation under the radiation influence as well as surface microorganism annihilation that eventually protected the embryos, ensuring a better production of pigments after germination and growth. Further study will consider antioxidant enzyme assay in control and proton beam exposed samples.
ID: Hall 5, Report 5
Comparison and choice of the greenhouse gas accounting method for a model region in Germany
Institute for the Transformation of the Energy System (ITE), West Coast University of Applied Sciences, Eco.income engineering GmbH
Following the sustainable development trends, Germany is steadily moving towards an energy transformation. This complex process requires serious planning and an interdisciplinary approach. Within the framework of the German project "WESTKUESTE100" the roadmaps to complete CO2-neutrality in a model region will be oered. The rst step in creating realistic scenarios is to analyze existing accounting methods of greenhouse gas emissions and to adapt the chosen methods for the specic purposes. This work describes an approach to the selection and adaptation of the CO2-equivalent emission accounting method for a model region in order to create scenarios for the energy transformation.
ID: Hall 4, Report 4
Application of additive technology to create universal carriers of cellular structures
Institute of Chemistry of New Materials of the NAS of Belarus
The work is devoted to obtaining biocompatible carriers with mechanical properties similar to living tissues by extrusion 3D-printing. Printing of models was carried out with biocompatible hydrogels of sodium alginate and chitosan in order to determine the optimal concentrations of components and process parameters.
Electric and Electronic engineering
ID: Hall 12, Report 61
Intergrated shear-horizontal surface acoustic waves with gold nanoparticles for multifunctional acousto-plasmonic liquid sensors fabricated on 36XY-LiTaO3
Shizuoka University and Universitas Indonesia
As a novelty, we proposed the integration between SH-SAW and LSPR effect technology to develop multifunctional sensors on a common substrate, as shown in Fig 1. Therefore, the sensor has simultaneous detection, not only based-on electrical properties but also with optical response.
ID: Hall 5, Report 16
High-Performance and low-voltage current sense-amplifier using GAA-CNTFET with different chirality and channel
Shizuoka University, VIT Vellore
As scaling down of transistors have become the major concern these days, it has lead to the problems such as short channel effects, leakage current, high power consumption. To overcome these problems, CNTFETs are used which have proved itself as a promising device in the world of electronics. The parametric analysis has been carried out in this work for Current Sense amplifier for different chirality with different channels. Simulation results shows which combination of chirality, thickness oxide and dielectric constant is best suited for a specific application.
Internet based education, distance learning
ID: Hall 6, Report 23
Effects of process parameters on the dissimilar friction stir welded joints between aluminum alloy and Polycarbonate
Effects of processing parameters on weld interface and material flow during friction stir welding of dissimilar materials were investigated. The tapered cylindrical tool pin made of SKD11 was used to improve the in-process material flow behaviors during the process.
Material science and technology, smart materials
ID: Hall 9, Report 29
Structure and properties of metal-carbon a-C coatings alloyed with Ti, Zr and Al with a high concentration
Nanjing University of Science and Technology, Francisk Skorina Gomel State University
The paper presents a comparative analysis of the structure and mechanical properties of carbon coatings, highly alloyed with metals Ti, Zr and Al. Coatings were deposited from combined flows of metal and carbon plasma with approximately the same mass content.
Hall 10, Report 35
Structure and optical properties of a-C coatings doped with nitrogen and silicon
Francisk Skorina Gomel State University, Belarus
Using a pulsed arc discharge, carbon coatings binary-doped with silicon and nitrogen are deposited on quartz and silicon substrates. The structure and phase composition of the coatings are studied by atomic force microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. The optic band gap Eg and the refractive index of the coatings are determined depending on the alloying elements. The influence of nitrogen and silicon on the formation of the structure of the carbon matrix and the formation of chemical compounds in the coatings, leading to a change in the width optic band gap Eg, has been established. Changes in the roughness Ra and the size of the Csp2 cluster are shown in the case of binary doping with nitrogen and silicon.
ID: Hall 12, Report 4
Photoactive properties and AFM topography of ZnOХ:MgO nanocomposite sol-gel films on the surface of silicon
Francisk Skorina Gomel State University
The results of determining by AFM the parameters of sol-gel synthesis influence for the formation of nanocomposite coatings ZnOх:MgO with a band gap greater than 5 eV and with high sensitivity to UV and visible radiation are presented. It is shown that depending on the magnesium concentration change in the surface of the ZnOх: Mg films is observed.
Hall 15, Report 65
Piezoelectric properties of layers based SrBi2(TaxNb1−x)2O9 synthesized by the sol-gel method
Francisk Skorina Gomel State University
The present work aims to design and study novel functional thin films with piezoelectrical and multiferroical properties. Thin films of SrBiTa2O9 and SrBi2(TaxNb1−x)2O9 were synthesized by sol-gel method on Pt/Ti/SiO2/Si substrates.
ID: Hall 14, Report 64
Raman investigation of multiferroic BiFeO3 and Bi1-xSmXFeO3 materials synthesized by the sol-gel method
Francisk Skorina Gomel State University
The present work presents the results of the investigation of multiferroic materials (BiFeO3 and Bi1-xSmXFeO3) with perovskite structure, which possesses two types of orderings: ferromagnetic and ferroelectric.
ID: Hall 11, Report 41
Characteristics of nanocomposite sol-gel films on black silicon surface
Francisk Skorina Gomel State University
The structural and photoelectric characteristics of thin sol-gel ZnO, TiO2, and SiO2 films on the black silicon (b-Si) surface have been studied. It has been shown that it is preferable to use ZnO and TiO2 films as passivating and protective films of solar cells based on b-Si, which have stable structural and optical properties and, at least, do not worsen the reflection of b-Si in the near infrared and visible regions of the solar radiation.
ID: Hall 11, Report 38
Enhancing the Seebeck coefficient of Zn-doped MoS2 grown over carbon fabrics via band engineering
Shizuoka University, SRM Institute of Science and Technology
Among various 2D materials, molybdenum disulfide semiconductors have gained much attention in various applications such as electronics, supercapacitors and optoelectronics due to their unique transport properties. But the nature of charge transport remains indefinable as they show lower mobility compared to theoretical values. In the present work, we report a possible method for enhancing the thermoelectric properties of MoS2 by effectively growing pristine MoS2 and Zn-doped MoS2 on carbon fabrics (CFs) by a simple hydrothermal method. The uniform growth of pristine MoS2 and Zn-doped MoS2 on CFs was confirmed by structural and morphological analysis. Various concentrations of Zn doped MoS2 nanosheets grown on CFs showed significant enhancement thermoelectric performances. It was found that the electrical conductivity (1.69 x 102 S/cm) was significantly increased for Sample Zn2 with temperature.
ID: Hall 8, Report 26
Investigation of the Convection Effect on the Inclusion Motion in Thermally Stressed Crystals
V.N. Karazin Kharkiv National University, National Aerospace University “Kharkiv Aviation Institute”, Institute of Semiconductor Physics of the National Academy of Sciences of Ukraine, Shizuoka University
The conditions for occurrence of convective mass transfer in a liquid inclusion located in a thermally stressed crystal have been investigated. An estimated calculation of the Rayleigh number for a convective cell with solid boundaries has been performed.
ID: Hall 7, Report 24
Research of Morphology and Luminescence of Particles Based on Yttrium Fluorides for Medical Usage
Shizuoka University, Saint Petersburg State Institute of Technology, ANSeeN Inc.
Synthesizing nanophosphor for use in medicine, namely, in photodynamic therapy. Study of the effect of duration, environment and stabilizers of sol-vothermal synthesis on the microstructure and luminescent properties of YF3:Ce nanophosphor.
ID: Hall 18, Report 32
Synthesis of scintillating sodium boron glass-ceramic materials containing YNbO4 :Tb3+ crystallites
Francisk Skorina Gomel State University, SSPA “Optics, Optoelectronics and Laser Technology”, Ioffe Institute, UIIP NAS of Belarus
The poster shows the stages of obtaining scintillating glass-ceramic materials containing yttrium niobate activated by terbium ions. The results of XRD analysis and cathodoluminescence studies of the obtained materials are also presented.
Measurement, identification, and control
ID: Hall 16, Report 57
Investigation of the effect of observation window on the sensitivity enhancement in the multi-pass cell outside the expansion wave tube chamber
In this study, the sensitivity enhancement of multi-pass cells in the inclination of the interior cell window was investigated by calculation using the ray-tracing method considering laser spread and Snell's law to account for window refraction. As a result, the higher the sensitivity, the smaller the acceptable range of slope. The inclination tolerance of the observation window is larger than the inclination toler-ance of the concave mirror.
Metamaterials and metasurfaces
ID: Hall 15, Report 50
Optical chirality enhancement with dielectric metasurfaces
University of Gothenburg, Francisk Skorina Gomel State University, Stanford University
We propose the design of an all-dielectric metasurface for an enhancement of the CD response from chiral molecules with low concentrations. The approach relies on the formation of superchiral fields interacting with molecules to enhance their optical chirality.
Nanotechnology and nanometrology
ID: Hall 13, Report 62
Atomic force spectroscopy experiments with amino-functionalized silicon AFM tips and samples
”Alexandru Ioan Cuza” University
he present work uses plasma technology in combination with wet-chemistry functionalization methods to functionalize silicon atomic force microscopy (AFM) probe and sample surfaces with amino (-NH2) chemical groups. Plasma cleaning, oxidation, and hydroxylation processes are used to chemically activate silicon or silicon nitride surfaces by generating surface silanol (Si-OH) groups. This process is followed by self assembled monolayer (SAM) deposition of ethanolamine to generate surface amino groups. The amino-functionalized AFM probes and samples were used in atomic force spectroscopy measurements that confirmed successful functionalization by chemical force titration.
ID: Hall 16, Report 68
Atomic Force Microscopy Indentation of Supported Lipid Bilayers
”Alexandru Ioan Cuza” University
In this work, AFM indentation experiments of supported lipid bilayers (SLB) on mica are performed to investigate their hardness. In such measurements, the strain response of the SLB to the compression stress applied by the sharp tip of the AFM probe (curvature radius of 10 nm) is analyzed. It was observed that under the compression stress, the SLB deformed first elastically and then plastically (with a lateral disruption of the lipid bilayer). Transition between elastic and plastic deformation is characterized by the SLB breakthrough force. It is shown that plasma hydroxylation of the AFM tips decreases slightly the SLB breakthrough force.
ID: Hall 6, Report 17
Theoretical study of the impact of a donor-acceptor pair on tunneling current in Si nanodiodes
Tunnel diodes are semiconductor devices that operate based on the band-to-band tunneling (BTBT) mechanism a process that holds promise for future electronics. In this report we provide a theoretical study of the impact of a donor-acceptor pair on BTBT current, using a semi-empirical simulation approach and it is found that such a system can enhance the current and the main factors involved in this enhancement are identified distinctly.
ID: Hall 4, Report 15
First-principles study of bandgap electronic states under electric field in Silicon nanowires with discrete dopants
Low-dimensional Si tunnel diodes show a transport behavior significantly different compared to conventional (large-scale) devices due to dopant individuality. In this research work, we aim to understand the role of energy states which can be induced in the bandgap by the interaction between a donor-atom and an acceptor-atom in Si nanostructures.
ID: Hall 14, Report 45
The Effect of SiO2 Content Rate in Simulated Lunar Regolith on Ablation Plume Temperature and The Feasibility Assessment of Al2O3 Reduction
We considered the application of lunar regolith for the construction of a lunar base. To obtain aluminum as building materials, the reduction of simulated lunar regolith composed of alumina and silicon dioxide was performed using 1-kW-class continuous-wave diode laser ablation.
ID: Hall 8, Report 20
Deep Learning applications for COVID-19: a brief review
University of Tabriz, Obuda University Budapest, Obuda University Budapest
Most aspects of human life have been affected by COVID-19 (coronavirus disease) since December 2019. The World Health Organization (WHO) has declared COVID-19 as a pandemic. One of the top praised techniques used in image-based healthcare applications is DL (Deep Learning). Thus, many studies have been suggested to develop devices with smart image-based diagnosis capability to detect COVID-19. In this paper, an elaborated summary is presented on the state-of-the-art studies associated with Deep Learning applications used in COVID-19 medical image processing to review the increased use of Deep Learning in COVID-19 studies.