INDUSTRY 4.0: ASSESSING THE LEVEL OF ADVANCED DIGITAL TECHNOLOGIES IN THE EU COUNTRIES USING INTEGRATED ENTROPY–TOPSIS METHODS
Sanela Arsić, Milena Gajić
University of Belgrade, Technical Faculty in Bor, Bor, Serbia

REMOTE ENGINEERING LABORATORY EXPERIMENTS FOR DISTANCE LEARNING CONCEPTS IN COVID-19 CONDITIONS
Đorđe Damnjanović, Dejan Vujičić, Marina Milošević, Dijana Stojić
Faculty of Technical Sciences Čačak, University of Kragujevac, Serbia

THE HEURISTIC ALGORITHMS USED IN THE OPTIMIZATION OF LAMINATED COMPOSITE STRUCTURES: A REVIEW
Fatih KARAÇAM, İbrahim Batuhan ÇANCI
Trakya University, Department of Mechanical Engineering, 22030, Edirne, Turkey

MATERIALS WITH IMPROVED HEAT-PHYSICAL PROPERTIES FOR BALLONETS OF HYBRID AIRSHIP
Pavlyk Petro 1, Salenko A.2, Chencheva O.3 Shchetynin V.4
1 National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
2 National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
3 Kremenchug Mykhailo Ostrogradskyi National University
4 Kremenchug Mykhailo Ostrogradskyi National University

FORMATION OF INTERNAL THREADS WITH TAPS
Hristo Radev
Technical University of Gabrovo, Bulgaria

SELECTION OF FILTER PARTITION MATERIAL FOR ULTRASONIC CAVITATION FILTRATION
Andrii Zilinskyi
National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

GENERAL ANALYSIS OF SCHEME FOR ELECTROHYDRAULIC POSITIONING ACTUATORS
Li Qiang, Uzunov Oleksandr
National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Ukraine

METHODS FOR INTENSIFICATION OF THE TRANSFER PHENOMENON IN THE CHEMICAL TECHNOLOGICAL PROCESS OF ELECTROLYSIS
Nochnichenko Ihor, Jakhno Oleg
National technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Ukraine

RHEOLOGICAL PROPERTIES OF FOAMING AGENTS USED BY UKRAINIAN FIREFIGHTERS
Stas S. V.¹, Kolesnikov D. V.¹, Bychenko A. O.¹, Koval O. D.²
¹Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Defence of Ukraine
²National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

ANALYSIS OF NET ENERGY CONSUMPTION FOR COOLING HOTEL BUILDINGS
Mariya Raykova, Ivaylo Tsvyatkov
Technical University of Gabrovo, Bulgaria

OPTIMIZATION OF THE PARAMETERS OF THE ENCLOSING ELEMENTS OF BUILDINGS IN HEATING AND COOLING MODE
Mariya Raykova, Ivaylo Tsvyatkov
Technical University of Gabrovo, Bulgaria

COMMUTATION-MODULATION METHOD AND MEANS OF DETERMINING ACUPUNCTURE POINTS
Konstantyn Shevchenko1, Oleksiy Yanenko1, Mikhail Prokofiev2, Sergey Peregudov1, Vasyl Kuz3
1 Igor Sikorsky Kyiv Polytechnic Institute
2 Vasyl Stus Donetsk National University
3 Ternopil Ivan Puluj National Technical University

ANALYSIS OF MEASUREMENT UNCERTAINTY BUDGET FOR ELECTRICAL POWER QUALITY SIGNAL GENERATOR
Milan Simić, Dragan Živanović, Goran Miljković
University of Niš, Faculty of Electronic Engineering, Serbia

VOLATILITY INDEX ESTIMATION BY REVERSE ENGINEERING
Todor Balabanov
Bulgarian Academy of Sciences Institute of Information and Communication Technologies

PARETO FRONT ESTIMATION WITH A HEURISTIC SINGLE-OBJECTIVE SOLVER
Todor Balabanov
Bulgarian Academy of Sciences Institute of Information and Communication Technologies

SIMULATION ENVIRONMENT FOR STUDY OF LORAWAN TECHNOLOGY
Diyan Dinev1, Kaloyan Genov1
1 Technical University of Varna, Bulgaria

MOBILE ROBOT CONTROL USING ROBOT OPERATING SYSTEM
Uroš Pešović1, Marko Marković1, Velibor Trifunović1, Slađana Đurašević1, Željko Jovanović1
1 Faculty of technical sciences Čačak, University of Kragujevac, Serbia

SIMULATION ENVIRONMENT FOR STUDY OF BLUETOOTH LOW ENERGY TECHNOLOGY
Aydan Haka, Yordan Yordanov
Technical University of Varna, Bulgaria

DESIGN AND DEVELOPMENT OF A TEMPERATURE MONITORING SYSTEM
Diyan Dinev, Delcho Angelov
Technical University of Varna, Bulgaria

RESEARCH AND ANALYSIS OF ANTI-WINDUP TECHNIQUES IN THE CONTROL SYSTEMS
Georgi Mihalev, Stanimir Yordanov
Technical University of Gabrovo, Bulgaria

INTRODUCTION AND COMPARISON OF SOFTWARE PLATFORMS FOR MACHINE LEARNING
Aleksandar Lubenov, Georgi Mihalev
Technical University of Gabrovo, Bulgaria

HUMIDITY SENSOR ELEMENTS BASED ON Ce, Zn AND V-DOPED Ti-Si-O SURFACE LAYERS
Nedyu Nedev1, Zvezditza Nenova1, Stephan Kozhukharov2, Toshko Nenov1
1 Technical University of Gabrovo, Bulgaria
2 University of Chemical Technology and Metallurgy – Sofia, Bulgaria

SCALED ANTI-SYNCHRONIZATION BETWEEN TWO THIRD-ORDER CHAOTIC SYSTEMS WITH DOUBLE ATTRACTORS
Dragomir Chantov, Hristina Stoycheva
Technical University of Gabrovo, Bulgaria

LOW-COST SENSOR MODULE FOR GAS MEASUREMENTS
Stefan Ivanov, Todor Todorov, Toshko Nenov
Technical University of Gabrovo, Bulgaria