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KPI Science News
ISSN 2617-5509 · e‑ISSN 2663-7472 Open Access · CC BY 4.0
KPISN 2021

VOL
ISS 2
Issue · 2021

No. 2 (2021)

Vol. · 2
Published Jun 2021
Articles 10
Authors 27
§ Table of contents

Articles

TUNABLE POLARIZERS FOR X-BAND RADAR AND TELECOMMUNICATION SYSTEMS

Andrew V. Bulashenko, Stepan I. Piltyay, Yelyzaveta I. Kalinichenko, Oleksandr V. Bulashenko

Background. Nowadays processing of signal polarizations is widely applied in modern information and telecommunication radio engineering systems for different purposes.…

#polarizer #waveguide with iris #waveguide with post #transfer matrix
10.20535/kpisn.2021.2.236953

DETERMINATION OF “WEAK” BY POWER TRANSFORMERS RELIABILITY OF POWER SYSTEMS ACCORDING TO THE RESULTS OF FAILURE RISK ASSESSMENT UNDER EXTERNAL SHORT CIRCUITS

Eugeniy I. Bardik, Mykola P. Bolotniy, Yaroslav S. Koval

Background. The increase of technological violation intensity and its consequences severity is caused mainly by objectively existing aging and service life depletion of…

#fuzzy logic #reliability of electrical equipment #risk assessment #power transformers
10.20535/kpisn.2021.2.236952

SORTING APPROACHES IN THE HEURISTIC BASED ON REMAINING AVAILABLE AND PROCESSING PERIODS TO MINIMIZE TOTAL WEIGHTED TARDINESS IN PROGRESSIVE IDLING-FREE 1-MACHINE PREEMPTIVE SCHEDULING

Vadym V. Romanuke

Background. In preemptive job scheduling, total weighted tardiness minimization is commonly reduced to solving a combinatorial problem, which becomes practically…

#preemptive 1-machine job scheduling #total weighted tardiness #heuristic #sorting approach
10.20535/kpisn.2021.2.227037

GENERATIVE DESIGN OF A FRAME TYPE CONSTRUCTION

Ihor V. Mastenko, Nataliia V. Stelmakh

Background. In recent years, there has been a rapid development of the domestic military industry. Reducing the mass and increasing the specific strength of military…

#topological optimization #penalty method for solid isotropic body #technological process #load
10.20535/kpisn.2021.2.236954