No. 3 (2026)

Published: 2026-07-01

Articles

FROM DIGITAL READINESS TO ENTREPRENEURIAL CAPACITY: THE ROLE OF DYNAMIC CAPABILITIES IN BULGARIAN SMES

Vesela Dicheva (Author)

223-234
- PDF (Bulgarian)
INVESTIGATION OF THE COMPOSITION AND STRUCTURE OF THE PATINA ON ARCHAEOLOGICAL COPPER COINS FROM CAPE ST. ATHANAS, BYALA, VARNA REGION

Diana Petrova , Yaroslav Argirov (Author)

204-222
- PDF (Bulgarian)
ANALYSIS OF UTILIZATION OF NATURAL BULGARITE AND PETROLEUM REFINERY WASTE IN THE SYNTHESIS OF DECORATIVE GLASS-CERAMICS

Nina Nedeva (Author)

194-203
- PDF (Bulgarian)
COMPARATIVE ANALYSIS OF THE OPERATION OF AN ASYNCHRONOUS INDUCTION MOTOR AND A SYNCHRONOUS RELUCTANCE MOTOR DRIVING AN INDUSTRIAL RECIPROCATING COMPRESSOR

Hristian Panchev (Author)

184-193
- PDF (Bulgarian)
INVESTIGATION OF THE OPERATION OF A THREE-PHASE SQUIRREL-CAGE INDUCTION MOTOR CONNECTED TO A SINGLE-PHASE SUPPLY

Hristian Panchev (Author)

171-183
- PDF (Bulgarian)
METHODS FOR FATIGUE DAMAGE ASSESSMENT UNDER STOCHASTIC AND VARIABLE AMPLITUDE LOADING – A REVIEW AND COMPARATIVE ANALYSIS

Teodor Minchev (Author)

155-170
- PDF (Bulgarian)
STRUCTURAL AND MECHANICAL ANALYSIS OF FRACTURE IN PLASMA-WELDED JOINTS OF S235JRE-N STEEL

Yaroslav Argirov, Apostol Ucherdzhiev (Author)

93-108
- PDF (Bulgarian)
CORROSION RESISTANCE OF AUSTENITIC AND FERRITIC-AUSTENITIC STAINLESS STEELS AND NICKEL-BASED SUPERALLOYS

Apostol Ucherdzhiev (Author)

55-69
- PDF (Bulgarian)
RADIAL MICROSTRUCTURAL HETEROGENEITY, CHEMICAL COMPOSITION, AND HARDNESS OF A CENTRIFUGALLY CAST CU–AL–ZN–FE ALLOY BUSHING

Yaroslav Argirov, Nikolay Valchev, Apostol Ucherdzhiev (Author)

43-54
- PDF (Bulgarian)
MECHANISMS GOVERNING THE EFFECTS OF ALLOYING ELEMENTS ON THE MICROSTRUCTURE AND PROPERTIES OF STAINLESS STEELS

Apostol Ucherdzhiev (Author)

28-42
- PDF (Bulgarian)
INVESTIGATION OF THE STRUCTURE AND PROPERTIES OF THE HISTORICAL TECHNOLOGICAL OBJECTS FROM CAPE ST. ATANAS, BYALA, VARNA REGION

Diana Petrova, Yaroslav Argirov (Author)

12-27
- PDF (Bulgarian)
INDUCED GUILT IN FAMILY DYNAMICS AND HYPOCHONDRIACAL PREDISPOSITION: A THEORETICAL MODEL

Anitsa Hugasiyan-Hachmeryan (Author)

1-11
- PDF (Bulgarian)

Studies

HYDROGEN AS A FUEL FOR SHORT SEA SHIPPING. PART 2: ENVIRONMENTAL AND ECONOMIC ASSESSMENT, SAFETY, REGULATORY FRAMEWORK AND MULTI-CRITERIA APPLICABILITY ASSESSMENT

Kaloyan Vangelov (Author)

133-154
- PDF (Bulgarian)
HYDROGEN AS A FUEL FOR SHORT-SEA SHIPPING.PART 1: PRODUCTION, STORAGE, SHIPBOARD ENERGY SYSTEMS AND DEMONSTRATION EXPERIENCE

Kaloyan Vangelov (Author)

109-132
- PDF (Bulgarian)
INTEGRATED PHYSICS-BASED STATISTICAL MODELING, PARAMETER IDENTIFICATION, AND ROBUST MULTI-OBJECTIVE OPTIMIZATION OF LASER SURFACE HARDENING OF CYLINDRICAL SPECIMENS USING THE LUX-2000 SYSTEM

Yaroslav Argirov, Nikolay Shterionov, Apostol Ucherdzhiev (Author)

70-92
- PDF (Bulgarian)

No. 3 (2026)

Articles

FROM DIGITAL READINESS TO ENTREPRENEURIAL CAPACITY: THE ROLE OF DYNAMIC CAPABILITIES IN BULGARIAN SMES

INVESTIGATION OF THE COMPOSITION AND STRUCTURE OF THE PATINA ON ARCHAEOLOGICAL COPPER COINS FROM CAPE ST. ATHANAS, BYALA, VARNA REGION

ANALYSIS OF UTILIZATION OF NATURAL BULGARITE AND PETROLEUM REFINERY WASTE IN THE SYNTHESIS OF DECORATIVE GLASS-CERAMICS

COMPARATIVE ANALYSIS OF THE OPERATION OF AN ASYNCHRONOUS INDUCTION MOTOR AND A SYNCHRONOUS RELUCTANCE MOTOR DRIVING AN INDUSTRIAL RECIPROCATING COMPRESSOR

INVESTIGATION OF THE OPERATION OF A THREE-PHASE SQUIRREL-CAGE INDUCTION MOTOR CONNECTED TO A SINGLE-PHASE SUPPLY

METHODS FOR FATIGUE DAMAGE ASSESSMENT UNDER STOCHASTIC AND VARIABLE AMPLITUDE LOADING – A REVIEW AND COMPARATIVE ANALYSIS

STRUCTURAL AND MECHANICAL ANALYSIS OF FRACTURE IN PLASMA-WELDED JOINTS OF S235JRE-N STEEL

CORROSION RESISTANCE OF AUSTENITIC AND FERRITIC-AUSTENITIC STAINLESS STEELS AND NICKEL-BASED SUPERALLOYS

RADIAL MICROSTRUCTURAL HETEROGENEITY, CHEMICAL COMPOSITION, AND HARDNESS OF A CENTRIFUGALLY CAST CU–AL–ZN–FE ALLOY BUSHING

MECHANISMS GOVERNING THE EFFECTS OF ALLOYING ELEMENTS ON THE MICROSTRUCTURE AND PROPERTIES OF STAINLESS STEELS

INVESTIGATION OF THE STRUCTURE AND PROPERTIES OF THE HISTORICAL TECHNOLOGICAL OBJECTS FROM CAPE ST. ATANAS, BYALA, VARNA REGION

INDUCED GUILT IN FAMILY DYNAMICS AND HYPOCHONDRIACAL PREDISPOSITION: A THEORETICAL MODEL

Studies

HYDROGEN AS A FUEL FOR SHORT SEA SHIPPING. PART 2: ENVIRONMENTAL AND ECONOMIC ASSESSMENT, SAFETY, REGULATORY FRAMEWORK AND MULTI-CRITERIA APPLICABILITY ASSESSMENT

HYDROGEN AS A FUEL FOR SHORT-SEA SHIPPING.PART 1: PRODUCTION, STORAGE, SHIPBOARD ENERGY SYSTEMS AND DEMONSTRATION EXPERIENCE

INTEGRATED PHYSICS-BASED STATISTICAL MODELING, PARAMETER IDENTIFICATION, AND ROBUST MULTI-OBJECTIVE OPTIMIZATION OF LASER SURFACE HARDENING OF CYLINDRICAL SPECIMENS USING THE LUX-2000 SYSTEM

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