Yu. Kostiv

ORCID: 0000-0002-1821-6542
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About
Contact & Profiles
Research Areas
  • Muon and positron interactions and applications
  • Ferroelectric and Piezoelectric Materials
  • Electrical and Thermal Properties of Materials
  • Advancements in Battery Materials
  • X-ray Diffraction in Crystallography
  • Chaos-based Image/Signal Encryption
  • Gas Sensing Nanomaterials and Sensors
  • Copper Interconnects and Reliability
  • Cryptographic Implementations and Security
  • Advanced Computational Techniques in Science and Engineering
  • Quantum Computing Algorithms and Architecture
  • Zeolite Catalysis and Synthesis
  • Advanced Scientific Research Methods
  • Advanced Signal Processing Techniques
  • Microwave Dielectric Ceramics Synthesis
  • Graphene research and applications

Lviv Polytechnic National University
2016-2024

The investigation focused on nanovoids (free-volume defects) in spinel MgAl2O4 ceramics, synthesized at various temperatures, both before and after saturation (water-immersion), utilizing the positron annihilation spectroscopy method. findings were analyzed within framework of a multi-channel model. It was demonstrated that this model integrates channels capturing positrons by volumetric defects decay ortho-positronium atoms. Within refined approach, first component reflects microstructural...

10.1080/15421406.2024.2366062 article EN Molecular Crystals and Liquid Crystals 2024-06-24

Repetition periods, and statistical characteristics of the pseudorandom bit sequence for predicting statistically secure generator keyspace on basis modified additive Fibonacci with a delay, are investigated.

10.1615/jautomatinfscien.v48.i11.70 article EN Journal of Automation and Information Sciences 2016-01-01

МЕТОДОЛОГІЯ, АЛГОРИТМ ТА ПРОГРАМНІ ЗАСОБИ БАГАТОКОМПОНЕНТНОГО АНАЛІЗУ ПОЗИТРОННИХ АНІГІЛЯЦІЙНИХ СПЕКТРІВ Запропоновано методологію опрацювання позитронних анігіляційних спектрів комп’ютерною програмою LT для керамічних наноструктурованих матеріалів. Продемонстровано особливості математичного опису спектрів. Представлений покроковий алгоритм відбору оптимальних значень параметрів припасування та обчислення захоплення позитронів нанопустотами. Проаналізовано анігіляційні спектри...

10.21272/jnep.9(3).03037 article UK Journal of Nano- and Electronic Physics 2017-01-01

The ways of constructing Poisson pulse sequences generators based on random functions Delphi programming environment R-block and the modified Fibonacci additive generator are investigated. There analyzed their statistical characteristics control code values ranges at which output flow corresponds to distribution law.

10.1615/jautomatinfscien.v49.i10.20 article EN Journal of Automation and Information Sciences 2017-01-01

Positron trapping processes in "free" thick-film layers based on semiconductor Cu <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0.1</inf> Ni Co xmlns:xlink="http://www.w3.org/1999/xlink">1.6</inf> Mn xmlns:xlink="http://www.w3.org/1999/xlink">1.2</inf> O xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> ceramics are studied. It is shown that two-state positron model appropriate for an adequate description of changes caused by additional glass...

10.1109/caol.2016.7851446 article EN 2016-09-01
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