I.A. Dychka

Work place: Computer Systems Software Department, Faculty of Applied Mathematics, National Technical University of Ukraine“Igor Sikorsky Kyiv Polytechnic Institute”, Ukraine

E-mail: dychka@pzks.fpm.kpi.ua

Website: https://orcid.org/0000-0002-3446-3076

Research Interests: Computational Science and Engineering, Software Creation and Management, Software Organization and Properties, Computer systems and computational processes, Systems Architecture, Computer Networks, Information Systems, Information Storage Systems, Data Structures and Algorithms


Ivan Dychka: D.S., Professor, Dean of Faculty of Applied Mathematics, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Ukraine. Research Interests: Computer Systems and Networks Software, Automated Control Systems, Intelligence and Expert Systems, Databases and Knowledge Bases, Information Security Software for Computer Systems and Networks.

Author Articles
Blind Payment Protocol for Payment Channel Networks

By Zhengbing Hu I.A. Dychka Mykola Onai Yuri Zhykin

DOI: https://doi.org/10.5815/ijcnis.2019.06.03, Pub. Date: 8 Jun. 2019

One of the most important problems of modern cryptocurrency networks is the problem of scaling: advanced cryptocurrencies like Bitcoin can handle around 5 transactions per second. One of the most promising solutions to this problem are second layer payment protocols: payment networks implemented on top of base cryptocurrency network layer, based on the idea of delaying publication of intermediate transactions and using base network only as a finalization layer. Such networks consist of entities that interact with the cryptocurrency system via a payment channel protocol, and can send, receive and forward payments. This paper describes a formal actor-based model of payment channel network and uses it to formulate a modified payment protocol that can be executed in the network without requiring any information about its topology and thus can hide information about financial relations between nodes.

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Mathematical Modeling of the Process of Vibration Protection in a System with two-mass Damper Pendulum

By Zhengbing Hu V.P.Legeza I.A. Dychka D.V.Legeza

DOI: https://doi.org/10.5815/ijisa.2017.03.03, Pub. Date: 8 Mar. 2017

We analyzed the dynamic behavior of the damping system with a two-mass damper pendulum. The equations of motion of nonlinear systems were built. AFC equation systems have been identified in the linear formulation. Proposed and implemented a new numerical method of determining the optimum parameters of optimal settings two-mass damper.

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