Dr. Olexander V. Derevyanchuk Profile

Dr. Olexander V. Derevyanchuk

at CHNU

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Author

Publications (8)

Proceedings Article | 5 January 2024 Paper

Implementation of STEM education in the process of training of future specialists of engineering and pedagogical specialties

O. Derevyanchuk, V. Kovalchuk, V. Kramar, H. Kravchenko, D. Kondryuk, A. Kovalchuk, B. Onufriichuk

Proceedings Volume 12938, 129381D (2024) https://doi.org/10.1117/12.3012996

KEYWORDS: Scanning transmission electron microscopy, Engineering, Education and training, Spectroscopy, Robotics, Modeling, Light sources, Computer programming, Standards development, RGB color model

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Proceedings Article | 21 December 2021 Paper

Computer system for increasing the local contrast of railway transport images

S. Balovsyak, O. Derevyanchuk, H. Kravchenko, O. Kroitor, V. Tomash

Proceedings Volume 12126, 121261E (2021) https://doi.org/10.1117/12.2615761

KEYWORDS: Image processing, Computing systems, Video, Cameras, Image filtering, RGB color model, Gaussian filters, Imaging systems, Image segmentation, Digital filtering

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Proceedings Article | 6 February 2020 Paper

An analytical method for investigations of acoustic phonons spectra in semiconductor ultra-thin flat films

A. Derevyanchuk, Yu. Lutsiuk, V. Kramar

Proceedings Volume 11369, 113691D (2020) https://doi.org/10.1117/12.2553960

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Proceedings Article | 6 November 2019 Paper

Adaptive oriented filtration of digital images in the spatial domain

Serhiy Balovsyak, Oleksandr Derevyanchuk, Igor Fodchuk, Olga Kroitor, Khrystyna Odaiska, Olexiy Pshenychnyi, Andrzej Kotyra, Akmaral Abisheva

Proceedings Volume 11176, 111761A (2019) https://doi.org/10.1117/12.2537165

KEYWORDS: Image filtering, Digital filtering, Gaussian filters, Visualization, Convolution, Image quality, Image segmentation, Image enhancement, MATLAB, Nonlinear filtering

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Proceedings Article | 18 January 2018 Paper

Dependence of optical absorption spectra of the flat double nanoheterostructures Al1-xGaxN/GaN/Al1-xGaxN from their thickness and concentration

Oleksandr Derevyanchuk, Denys Kondryuk, Valeriy Kramar

Proceedings Volume 10612, 1061219 (2018) https://doi.org/10.1117/12.2305437

KEYWORDS: Quantum wells, Absorption, Excitons, Gallium nitride, Gallium, Phonons, Aluminum, Heterojunctions, Aluminum nitride, Interfaces

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Proceedings Article | 18 January 2018 Paper

Internal optical bistability of quasi-two-dimensional semiconductor nanoheterostructures

Oleksandr Derevyanchuk, Natalia Kramar, Valeriy Kramar

Proceedings Volume 10612, 106120N (2018) https://doi.org/10.1117/12.2305445

KEYWORDS: Excitons, Absorption, Semiconductors, Bistability, Phonons, Quantum wells, Radio optics, Transmittance, Crystals, Optical computing

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Proceedings Article | 22 April 2008 Paper

Magnetooptical bistability of layer semiconductors in the field of exciton absorption

C. Yu. Zenkova, V. Kramar, N. Kramar, O. Derevyanchuk

Proceedings Volume 7008, 700810 (2008) https://doi.org/10.1117/12.797009

KEYWORDS: Excitons, Crystals, Magnetism, Absorption, Bistability, Semiconductors, Nonlinear crystals, Magnetic semiconductors, Phonons, Nonlinear optics

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Proceedings Article | 14 June 2006 Paper

The peculiarities of optical bistability realization in the exciton absorption region of layer semiconductors

Olexander Derevyanchuk, Claudia Zenkova, Valeriy Kramar, Natallya Kramary

Proceedings Volume 6254, 62541D (2006) https://doi.org/10.1117/12.679949

KEYWORDS: Excitons, Crystals, Absorption, Phonons, Nonlinear crystals, Semiconductors, Bistability, Polarization, Geometrical optics, Anisotropy

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Showing 5 of 8 publications

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