TECHSYS 2026: 15TH INTERNATIONAL SCIENTIFIC CONFERENCE ON ENGINEERING, TECHNOLOGY AND SYSTEMS – TECHSYS 2026

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Ahmed-Shieva, Sevil	Deep Learning Estimation of Mechanical Power in Pressure-Controlled Ventilation Using a 1D CNN–Bidirectional LSTM Model Unsupervised Categorization of Hysteresis Loops: A Comparative Study of Expert-Driven Feature Engineering vs. Deep 1D-Convolutional Autoencoders
Akinola, Ayooluwa	Numerical Analysis of Fluid Flow and Heat Transfer in Wavy Microchannels with Pin Inserts
Akkenzheyeva, Anar	Rheological Properties of Bitumen Modified with Crumb Rubber and Devulcanized Rubber
Alexandrov, Alexander	Small Voice Bulgarian Language Model Generation Based on Vosk-Type Methods and Algorithms
Alooeff, Eugene	Implementing SLI/SLA/SLO Metrics in an ASP.NET 8 Microservices Architecture Using OpenTelemetry and Prometheus
Ambarev, Krasimir	Identification of the Natural Frequencies of a MacPherson Suspension Using FFT, FRF, and Spectral Analysis Analysis of Natural Frequencies of a MacPherson Suspension using Different Bushings Elastic Characteristics
Amindjanova, Sevara	An investigation into the elemental composition and develop-ment of a scheme that is efficient in the enrichment of cop-per-bearing ores from the Yoshlik deposit (Uzbekistan)
Angelov, Simeon	Small Voice Bulgarian Language Model Generation Based on Vosk-Type Methods and Algorithms
Arevalo, Fernando	A Portable IoT-Enabled System for Georeferenced Soil Nutrient Screening in Agricultural Fields
Atanasova, Mariana	A Governance-Aware, Privacy-Preserving, Event-Driven Conceptual Model for Supply Chain Traceability Blockchain for EUPHEMIA Market Transparency
Atanassov, Ivaylo	Research on the Time Mutability Method for Stochastic Objects Drift Velocity Measurement - a review
Aydoğan, Ramazan	Architecture and performance evaluation of real-time facial recognition for access control Implementation and evaluation of the shortest-path algorithm for GIS Network Routing
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Babanova, Maria	Anomaly Detection in ADS-B Air Traffic Data Using Distributed Machine Learning
Bakardjieva, Teodora	The Invisible Guardian: Big Data, Behavioral Biometrics, and the Era of Continuous Authentication
Bakardzhiev, Valeri	Research on impact resistance using free-falling dart drop testing of 3D printed parts made of ABS and PETG according ASTM D1709 A Parametric CNC Approach for Buttress Threads Machining
Bankov, Blagovest	Investigation of the Influence of the k-Factor Parameter on the Quality of Printed Parts Using Ingeo Biopolymer 4043D
Bekpulatov, Javlon	An investigation into the elemental composition and develop-ment of a scheme that is efficient in the enrichment of cop-per-bearing ores from the Yoshlik deposit (Uzbekistan)
Bodurov, Georgi	Simulation and experimental investigation of an SRM drive in motoring mode
Bonev, Boncho	Instrumentation used for VHF solar burst observations at the Bulgarian Antarctic Base during Solar Cycle 25.
Borisov, Tsvetomir	Assessment of Non-Destructive Testing Techniques for Detecting Fatigue Cracks in Railway Suspension Pivot Pins
Boshnakova, Svetlana	Manufacturing Technologies Comparison for Nozzles
Boychev, Yavor	Investigation of the Mechanical Properties and Electromagnetic Damping of Polymer Composites Reinforced with Carbon Particles and Cenospheres
Buchkova, Gergana	Influence of Chemical Composition on Microstructure and Hardness of 24Cr–Ni Steels Alloyed with Nitrogen Influеncе оf Chеmicаl Cоmpоsitiоn оn Micrоstructurе аnd Hаrdnеss оf High-Chrоmium Cаst Irоns
Budakova, Dilyana	Heuristic Algorithm for Conceptual Learning
Bussurmanova, Akkenzhe	Rheological Properties of Bitumen Modified with Crumb Rubber and Devulcanized Rubber
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Chalakova, Gergana	A Priori Reliability of Electrical Machines and Its Verification by Testing Expediency Assessment Of An Information System Based On The Reliability Characteristics Of Its Elements
Chernev, Georgi	Design and technology development of an innovative biode-gradable single-use cup
Chikurtev, Denis	Assessing MQTT, CoAP and HTTP performance in real-life scenarios on ESP32-C6 IoT node Design and Implementation of a FIWARE-Based Education Smart Data Model for University Campus Management
Chukalov, Konstantin	Research on impact resistance using free-falling dart drop testing of 3D printed parts made of ABS and PETG according ASTM D1709 A Parametric CNC Approach for Buttress Threads Machining
Cordero, Bayron	A Portable IoT-Enabled System for Georeferenced Soil Nutrient Screening in Agricultural Fields
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Dakov, Stanislav	Web-based financial diary: architecture, functionalities and application for personal finance management
Dakova, Megi	Web-based financial diary: architecture, functionalities and application for personal finance management
Damyanov, Iliyan	Emissions and Dynamics: The Role of Software in Similar Automotive Platforms
Daulova, Ivelina	Exploring the Relationships between Material and Image in the Exquisite Graphics of Letterpress Printing
Dechev, Mario	Investigation of Overall Light Transmittance of PETG Material
Delova, Ivanka	Assessment of Non-Destructive Testing Techniques for Detecting Fatigue Cracks in Railway Suspension Pivot Pins
Demirev, Teodor	Investigation of Overall Light Transmittance of PETG Material
Derimanov, Vasil	Impact of SMOTE Oversampling on Machine Learning Classifiers for Preeclampsia Prediction Under Severe Class Imbalance: Evidence from a Bulgarian Screening Cohort
Dimitrov, Kalin	Analytical study of methods and diagnostic tools for evaluating automotive brake fluid quality under operational conditions
Dimitrova, Rayna	Application of 3D Printed Patterns in Sand Casting
Dimova, Delyana	Technology for Managing and Grouping Datasets regarding Protected Natural Areas and Species
Dimova, Desislava	Investigation of the Mechanical Properties and Electromagnetic Damping of Polymer Composites Reinforced with Carbon Particles and Cenospheres Effect of Plastic Deformation on the Corrosion Behavior of EN AW-2024 Aluminum Alloy in Acidic Environment in the Pres-ence of Eco-Friendly Inhibitors
Djambazova, Edita	Integrating the Approach of Adjustable Reliability into the System Development Life Cycle
Dochev, Boyan	Investigation of the Mechanical Properties and Electromagnetic Damping of Polymer Composites Reinforced with Carbon Particles and Cenospheres Effect of Plastic Deformation on the Corrosion Behavior of EN AW-2024 Aluminum Alloy in Acidic Environment in the Pres-ence of Eco-Friendly Inhibitors
Dursun, Burak	Machine Learning-Based Heart Disease Prediction: A Comparative Analysis with Feature Importance Evaluation
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Elmurodov, Tulkin	An investigation into the elemental composition and develop-ment of a scheme that is efficient in the enrichment of cop-per-bearing ores from the Yoshlik deposit (Uzbekistan)
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Fares, Hadi	The Invisible Guardian: Big Data, Behavioral Biometrics, and the Era of Continuous Authentication
Filipova-Petrakieva, Simona	Time series analysis of the behavior of wild animals using camera traps
Flores Cortez, Omar Otoniel	A Portable IoT-Enabled System for Georeferenced Soil Nutrient Screening in Agricultural Fields
Furnadzhiev, Radoslav	Anomaly Detection in ADS-B Air Traffic Data Using Distributed Machine Learning
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Gadzheva-Nedelcheva, Mihaela	Exploring the Relationships between Material and Image in the Exquisite Graphics of Letterpress Printing
Gaftandzhieva, Silvia	AutoSignal: A Dart-based Programming Paradigm for Automatic Component Connection via Signal-Slot Architecture
Gaidarski, Ivan	Constructive approach to the design of data protection systems. Models and transformation Compensations for Horizontal Inertial Components of INS/GNSS with Flight Altitude
Gancheva, Veska	Quantum Machine Learning for Enhanced Cardiovascular Disease Risk Prediction Automated Assessment of Cognitive Levels in Bloom's Taxonomy through RAG-Based Architecture with LLMs
Gavrilov, Todor	Mechanical Characterization of PETG/TPU Multi-Material 3D-Printed Samples and Fabrication of a Test Part
Gechev, Tsvetomir	The Influence of Infill Direction on the Tensile Strength of FDM 3D-printed ABS produced at high speed
Georgiev, Gabriel	Applications of Twin Counter–Rotating Common–Axis Rotor Systems in Modern Rotorcraft and UAVs Assessment of Flutter Stability Constraints and the Impact on the Helicopter Rotor Aeroelastic Characteristics
Georgiev, Kliment	Investigation of Optimal Temperature Parameters in ABS Additive Printing Investigation of Overall Light Transmittance of PETG Material
Georgiev, Slavi	Architecture and performance evaluation of real-time facial recognition for access control Implementation and evaluation of the shortest-path algorithm for GIS Network Routing
Gospodinov, Tsvetomir	Blockchain for EUPHEMIA Market Transparency
Grigorov, Hristo	Electric Power Consumption Forecasting In Bulgaria
Grigorova, Tsvetana	Simulation and experimental investigation of an SRM drive in motoring mode A Study and Small-Signal Modeling of a Two-Switch Buck–Boost Converter Considering Parasitic Elements
Gueorguiev, Nikolay	A Priori Reliability of Electrical Machines and Its Verification by Testing Expediency Assessment Of An Information System Based On The Reliability Characteristics Of Its Elements
Gueorguiev, Tzvetelin	Overview of the Application of Innovation Management Tools and Methods in Industry
Gurova, Elena	SQL Database Optimization as a Driver for SME Digital Transformation: A Case Study in the PV Sector
Gyoshev, Stanislav	Experimental Determination of Mechanical Characteristics: Hardness and Roughness of PolyJet Test Bodies for Digital ABS Plus Material
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Halaj, Martin	Use of DCC Additional Information for the Expression of Calibration Results in Metrological Practice and Education
Hinov, Nikolay	A Fractal-Inspired Supervisory Layer for Robust PI Control of DC–DC Buck Converters Frequency-Domain Modal Characterization and Multi-Injection Resonance Assessment of a Zeta DC–DC Converter
Hlebarski, Danail	Driver Visibility and Pedestrian Detection Distance in Nighttime Traffic Accident Reconstruction
Hoang, Thanh Thuy	Optimizing Computer Mouse Shells Design Based on Viet-namese Student Anthropometry
Hristov, Kiril	Electric Power Consumption Forecasting In Bulgaria
Hristozov, Stefan	Compensations for Horizontal Inertial Components of INS/GNSS with Flight Altitude
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Ilchev, Svetozar	Design and development of a microcontroller board for environmental control and device management Microcontroller firmware for embedded systems in industrial applications
Iliev, Ilia	Instrumentation used for VHF solar burst observations at the Bulgarian Antarctic Base during Solar Cycle 25.
Ivanov, Stancho	Enhancing the Load Capacity of Flat Wagons: Theoretical Justification and Dynamic Simulation of a Prototype Three Axle Bogie Influence of Three-Axle Bogie Geometric Parameters on Inter-action Forces and Derailment Safety
Ivanov Genov, Ivan	A Study and Small-Signal Modeling of a Two-Switch Buck–Boost Converter Considering Parasitic Elements
Ivanova, Antonina	The Invisible Guardian: Big Data, Behavioral Biometrics, and the Era of Continuous Authentication Implementation and evaluation of the shortest-path algorithm for GIS Network Routing
Ivanova, Boryana	Influence of Chemical Composition on Microstructure and Hardness of 24Cr–Ni Steels Alloyed with Nitrogen Influеncе оf Chеmicаl Cоmpоsitiоn оn Micrоstructurе аnd Hаrdnеss оf High-Chrоmium Cаst Irоns
Ivanova, Maria	A combined approach for design concept variants assessment of a hydropower system Design and technology development of an innovative biode-gradable single-use cup
Izmirliyan, Agop	Research on impact resistance using free-falling dart drop testing of 3D printed parts made of ABS and PETG according ASTM D1709 A Parametric CNC Approach for Buttress Threads Machining
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Jha, Mayank	Bidirectional Transformer Representations for Transferable Statistical Language Models
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Kabaivanov, Stanimir	Cyber response automation with dedicated AI agents
Kabakchieva, Reni	A Fractal-Inspired Supervisory Layer for Robust PI Control of DC–DC Buck Converters Frequency-Domain Modal Characterization and Multi-Injection Resonance Assessment of a Zeta DC–DC Converter
Kamarska, Kalina	Investigation of the Corrosion of Steel S235JR in Common Beverages Effect of Plastic Deformation on the Corrosion Behavior of EN AW-2024 Aluminum Alloy in Acidic Environment in the Pres-ence of Eco-Friendly Inhibitors
Kamberov, Konstantin	A combined approach for design concept variants assessment of a hydropower system Design and technology development of an innovative biode-gradable single-use cup
Karageorgiev, Ivelin	Unsupervised Categorization of Hysteresis Loops: A Comparative Study of Expert-Driven Feature Engineering vs. Deep 1D-Convolutional Autoencoders
Karaivanova, Adeliya	Integrating Automated Notifications and Geospatial Navigation into a Mobile Platform to Support Higher Education
Kasabov, Plamen	Research on impact resistance using free-falling dart drop testing of 3D printed parts made of ABS and PETG according ASTM D1709 A Parametric CNC Approach for Buttress Threads Machining
Katrandzhieva, Vera	AI Factories as the backbone for driving AI ecosystem in EU
Kirilov, Aleksandar	Assessing MQTT, CoAP and HTTP performance in real-life scenarios on ESP32-C6 IoT node
Koleva, Radka	Investigation of the Corrosion of Steel S235JR in Common Beverages
Koleva, Svetlana	Prediction of Cutting Tool Wear in Turning
Konakchiev, Hristo	Emissions and Dynamics: The Role of Software in Similar Automotive Platforms
Kostadinova, Katerina	Simulation Modelling of a Closed-Die Cold Forging Process by Use of the QForm Specialised Software
Kosturkov, Rosen	HVAC Duct Contamination and Its Impact on Energy Efficien-cy and Indoor Air Quality: Evaluation and Ranking of Inspec-tion Methods Using Multi-Criteria Analysis
Kotov, Georgi	A Hybrid Synthetic Dataset Generation for Robust Document Recognition Using Image Rendering and Domain Randomization Adversarial Robustness and Explainability in AI-Generated Face Detection
Kovacheva, Mariyana	AI Factories as the backbone for driving AI ecosystem in EU
Kovatcheva, Eugenia	Design and Implementation of a FIWARE-Based Education Smart Data Model for University Campus Management
Kursun, Umit	Machine Learning-Based Heart Disease Prediction: A Comparative Analysis with Feature Importance Evaluation
Kuzmanov, Nikola	The Influence of Infill Direction on the Tensile Strength of FDM 3D-printed ABS produced at high speed Tensile testing at elevated temperatures of PolyJet Digital ABS Plus material
Kuzmanov, Zdravko	Investigation of the Influence of the k-Factor Parameter on the Quality of Printed Parts Using Ingeo Biopolymer 4043D
Kuşçu, Hilmi	Predictive Maintenance via Remaining Useful Life Estimation in Jet Engine Systems: A Comparative Analysis of Machine Learning Approaches Using NASA CMAPSS Dataset Design and Feasibility Assessment of Implementing a Pneumatic Suspension System in a Vehicle with a Conventional Suspension System
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La, Thi Ngoc Anh	Optimizing Computer Mouse Shells Design Based on Viet-namese Student Anthropometry
Lambov, Ivan	A Governance-Aware, Privacy-Preserving, Event-Driven Conceptual Model for Supply Chain Traceability
Laniyan, Adedeji	Numerical Analysis of Fluid Flow and Heat Transfer in Wavy Microchannels with Pin Inserts
Laskov, Lyubomir	Research of Traffic Delays Caused by Pedestrian Crossing at a Light Regulated Intersection: Case Study of City of Sofia Analytical study of methods and diagnostic tools for evaluating automotive brake fluid quality under operational conditions
Lazarova, Milena	Time series analysis of the behavior of wild animals using camera traps A Hybrid Synthetic Dataset Generation for Robust Document Recognition Using Image Rendering and Domain Randomization
Lengerov, Kiril	Overview of the Application of Innovation Management Tools and Methods in Industry
Lozev, Mark	Assessment of Non-Destructive Testing Techniques for Detecting Fatigue Cracks in Railway Suspension Pivot Pins
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Madzharov, Anastas	Constructive approach to the design of data protection systems. Models and transformation Compensations for Horizontal Inertial Components of INS/GNSS with Flight Altitude
Malakov, Ivo	Low-cost automation system for sorting parts of type “Connector”
Manov, Stefan	Assessment of Non-Destructive Testing Techniques for Detecting Fatigue Cracks in Railway Suspension Pivot Pins
Markov, Milen	Research of Traffic Delays Caused by Pedestrian Crossing at a Light Regulated Intersection: Case Study of City of Sofia
Markovska, Veneta	Cyber response automation with dedicated AI agents
Maroofi, Sardar	Transient Numerical Simulation of Reheating Furnace Behavior for Continuous Casting Rail Steel Blooms Prior to Rolling
Mashonova, Kristina	HVAC Duct Contamination and Its Impact on Energy Efficien-cy and Indoor Air Quality: Evaluation and Ranking of Inspec-tion Methods Using Multi-Criteria Analysis
Matkarimov, Sokhibjon	An investigation into the elemental composition and develop-ment of a scheme that is efficient in the enrichment of cop-per-bearing ores from the Yoshlik deposit (Uzbekistan)
Matov, Petar	Time series analysis of the behavior of wild animals using camera traps
Matsankov, Misho	Assessment of Accuracy in Measuring Distance with Ultra-sound Investigation of Overall Light Transmittance of PETG Material
Maznichki, Vladislav	Enhancing the Load Capacity of Flat Wagons: Theoretical Justification and Dynamic Simulation of a Prototype Three Axle Bogie
Melendez, Wener	A Portable IoT-Enabled System for Georeferenced Soil Nutrient Screening in Agricultural Fields
Mihailov, Rumen	Data driven electricity forecasting for small grid tied photovol-taic power plants in the transition from centralized to distributed generation
Mihaylov, Anton	Influence of Chemical Composition on Microstructure and Hardness of 24Cr–Ni Steels Alloyed with Nitrogen Simulation Modelling of a Closed-Die Cold Forging Process by Use of the QForm Specialised Software
Mihaylova, Aleksanrda	Experimental assessment of formaldehyde gas emissions from laminate and solid parquet under simulated fire conditions
Miletiev, Rosen	Emissions and Dynamics: The Role of Software in Similar Automotive Platforms
Miltchev, Radoslav	Mechanical Characterization of PETG/TPU Multi-Material 3D-Printed Samples and Fabrication of a Test Part
Minev, Ivaylo	Deep Learning Estimation of Mechanical Power in Pressure-Controlled Ventilation Using a 1D CNN–Bidirectional LSTM Model Unsupervised Categorization of Hysteresis Loops: A Comparative Study of Expert-Driven Feature Engineering vs. Deep 1D-Convolutional Autoencoders
Minkov, Dimitar	Heuristic Algorithm for Conceptual Learning
Mirchev, Yordan	Assessment of Non-Destructive Testing Techniques for Detecting Fatigue Cracks in Railway Suspension Pivot Pins
Mitev, Penko	Aging Behavior and Wear Metal Evolution of Low-Viscosity SAE 0W20 Engine Oil during the First Service Interval
Mladenov, Georgi	Analytical study of methods and diagnostic tools for evaluating automotive brake fluid quality under operational conditions
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Nachev, Atanas	A Priori Reliability of Electrical Machines and Its Verification by Testing Expediency Assessment Of An Information System Based On The Reliability Characteristics Of Its Elements
Nachev, Ivaylo	Instrumentation used for VHF solar burst observations at the Bulgarian Antarctic Base during Solar Cycle 25.
Nakov, Ognyan	A Hybrid Synthetic Dataset Generation for Robust Document Recognition Using Image Rendering and Domain Randomization Adversarial Robustness and Explainability in AI-Generated Face Detection
Nakov, Plamen	A Hybrid Synthetic Dataset Generation for Robust Document Recognition Using Image Rendering and Domain Randomization Adversarial Robustness and Explainability in AI-Generated Face Detection
Nallayan, Ataberk	Design and Feasibility Assessment of Implementing a Pneumatic Suspension System in a Vehicle with a Conventional Suspension System
Naydenova, Iva	Investigation of the Corrosion of Steel S235JR in Common Beverages Investigation of Optimal Temperature Parameters in ABS Additive Printing
Nedeltcheva, Galia	Assessing MQTT, CoAP and HTTP performance in real-life scenarios on ESP32-C6 IoT node
Nedeltcheva, Galia	Design and Implementation of a FIWARE-Based Education Smart Data Model for University Campus Management
Nedev, Hristo	Influence of a Confuser–Diffuser Channel on the Energy Effi-ciency of an Idealized Theoretical Model of a Wind Turbine Investigation of Airflow Parameters in a G-Shaped Channel
Nikitov, Nikita	Architecture and performance evaluation of real-time facial recognition for access control
Nikolov, Antonio	Application of 3D Printed Patterns in Sand Casting Simulation Modelling of a Closed-Die Cold Forging Process by Use of the QForm Specialised Software
Nikolov, Valyo	Identification of the Natural Frequencies of a MacPherson Suspension Using FFT, FRF, and Spectral Analysis Analysis of Natural Frequencies of a MacPherson Suspension using Different Bushings Elastic Characteristics
Nikolova, Martina	Mechanical Characterization of PETG/TPU Multi-Material 3D-Printed Samples and Fabrication of a Test Part
Nikovski, Plamen	A Classification of Sensor Data Fusion Methods: Concepts and Recent Advances
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Olugasa, Temilola	Numerical Analysis of Fluid Flow and Heat Transfer in Wavy Microchannels with Pin Inserts
Onderčo, Peter	Transient Numerical Simulation of Reheating Furnace Behavior for Continuous Casting Rail Steel Blooms Prior to Rolling Use of DCC Additional Information for the Expression of Calibration Results in Metrological Practice and Education Quantifying Tram Overhead Contact Line Stagger and Its Impact on Carbon Strip Wear
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Pachedjieva, Boryana	Research on the Time Mutability Method for Stochastic Objects Drift Velocity Measurement - a review
Panayotov, Aleksandar	A Governance-Aware, Privacy-Preserving, Event-Driven Conceptual Model for Supply Chain Traceability
Panayotov, Hristian	Wind tunnel experiment and analysis of aerodynamic characteristics of eVTOL aircraft
Panev, Peter	Tensile testing at elevated temperatures of PolyJet Digital ABS Plus material Experimental Determination of Mechanical Characteristics: Hardness and Roughness of PolyJet Test Bodies for Digital ABS Plus Material
Paneva, Miglena	Tensile testing at elevated temperatures of PolyJet Digital ABS Plus material Experimental Determination of Mechanical Characteristics: Hardness and Roughness of PolyJet Test Bodies for Digital ABS Plus Material
Pashev, George	AutoSignal: A Dart-based Programming Paradigm for Automatic Component Connection via Signal-Slot Architecture
Pashinski, Chavdar	Influence of a Confuser–Diffuser Channel on the Energy Effi-ciency of an Idealized Theoretical Model of a Wind Turbine Investigation of Airflow Parameters in a G-Shaped Channel
Paunkov, Nikolay	Assessment of Accuracy in Measuring Distance with Ultra-sound
Pavlova, Petya	Research on the Time Mutability Method for Stochastic Objects Drift Velocity Measurement - a review
Penchev, Stanimir	Wind tunnel experiment and analysis of aerodynamic characteristics of eVTOL aircraft
Petinrin, Moses	Numerical Analysis of Fluid Flow and Heat Transfer in Wavy Microchannels with Pin Inserts
Petkov, Peter	Instrumentation used for VHF solar burst observations at the Bulgarian Antarctic Base during Solar Cycle 25.
Petrov, Dimitar	Conducting an Assessment of the Operational Characteristics of an Existing Roundabout and a Comparative Analysis with Other Types of Intersections
Petrov, Krum	Application of 3D Printed Patterns in Sand Casting Simulation Modelling of a Closed-Die Cold Forging Process by Use of the QForm Specialised Software
Petrov, Petar	A Hybrid Synthetic Dataset Generation for Robust Document Recognition Using Image Rendering and Domain Randomization
Petrova, Dobrinka	Research on the Time Mutability Method for Stochastic Objects Drift Velocity Measurement - a review
Petrova, Galydia	An Experimental Setup for Collecting Physiological Data from Vehicle Drivers
Petrova, Ivalina	Investigation of the Corrosion of Steel S235JR in Common Beverages
Petrova, Ralitsa	Deep Learning Estimation of Mechanical Power in Pressure-Controlled Ventilation Using a 1D CNN–Bidirectional LSTM Model
Peychinov, Todor	Integrating Automated Notifications and Geospatial Navigation into a Mobile Platform to Support Higher Education
Pocasangre, Carlos	A Portable IoT-Enabled System for Georeferenced Soil Nutrient Screening in Agricultural Fields
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Radev, Hristo	An Experimental Setup for Collecting Physiological Data from Vehicle Drivers
Radulov, Atanas	Investigation of Overall Light Transmittance of PETG Material
Raychev, Raycho	Assessment of Non-Destructive Testing Techniques for Detecting Fatigue Cracks in Railway Suspension Pivot Pins
Ruykova, Velichka	The Influence of Infill Direction on the Tensile Strength of FDM 3D-printed ABS produced at high speed
Rybář, Jan	Transient Numerical Simulation of Reheating Furnace Behavior for Continuous Casting Rail Steel Blooms Prior to Rolling Use of DCC Additional Information for the Expression of Calibration Results in Metrological Practice and Education Quantifying Tram Overhead Contact Line Stagger and Its Impact on Carbon Strip Wear
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Sabev, Sabi	Research on impact resistance using free-falling dart drop testing of 3D printed parts made of ABS and PETG according ASTM D1709 A Parametric CNC Approach for Buttress Threads Machining
Saliev, Durhan	Research of Traffic Delays Caused by Pedestrian Crossing at a Light Regulated Intersection: Case Study of City of Sofia Conducting an Assessment of the Operational Characteristics of an Existing Roundabout and a Comparative Analysis with Other Types of Intersections
Sapundzhi, Fatima	Architecture and performance evaluation of real-time facial recognition for access control Implementation and evaluation of the shortest-path algorithm for GIS Network Routing
Savova-Mratsenkova, Milena	Driver Visibility and Pedestrian Detection Distance in Nighttime Traffic Accident Reconstruction
Serbezov, Vladimir	Applications of Twin Counter–Rotating Common–Axis Rotor Systems in Modern Rotorcraft and UAVs
Shaikh, Ibrahim	Transient Numerical Simulation of Reheating Furnace Behavior for Continuous Casting Rail Steel Blooms Prior to Rolling
Shakev, Nikola	Deep Learning Estimation of Mechanical Power in Pressure-Controlled Ventilation Using a 1D CNN–Bidirectional LSTM Model Unsupervised Categorization of Hysteresis Loops: A Comparative Study of Expert-Driven Feature Engineering vs. Deep 1D-Convolutional Autoencoders
Shopov, Mitko	Impact of SMOTE Oversampling on Machine Learning Classifiers for Preeclampsia Prediction Under Severe Class Imbalance: Evidence from a Bulgarian Screening Cohort Anomaly Detection in ADS-B Air Traffic Data Using Distributed Machine Learning
Simova, Iskra	Experimental assessment of formaldehyde gas emissions from laminate and solid parquet under simulated fire conditions
Sinapov, Petko	Enhancing the Load Capacity of Flat Wagons: Theoretical Justification and Dynamic Simulation of a Prototype Three Axle Bogie
Slavchev, Svetoslav	Enhancing the Load Capacity of Flat Wagons: Theoretical Justification and Dynamic Simulation of a Prototype Three Axle Bogie
Solakov, Teodor	Effect of Plastic Deformation on the Corrosion Behavior of EN AW-2024 Aluminum Alloy in Acidic Environment in the Pres-ence of Eco-Friendly Inhibitors
Stanchev, Plamen	A Fractal-Inspired Supervisory Layer for Robust PI Control of DC–DC Buck Converters Frequency-Domain Modal Characterization and Multi-Injection Resonance Assessment of a Zeta DC–DC Converter
Starinský, Gregor	Use of DCC Additional Information for the Expression of Calibration Results in Metrological Practice and Education
Stefanov, Stanimir	Investigation of the Power Characteristics of a Photovoltaic Power Plant in Relation to Daylight Duration
Stefanov, Tsvetelin	Design and Implementation of a FIWARE-Based Education Smart Data Model for University Campus Management
Stefanova, Eliza	Blockchain for EUPHEMIA Market Transparency
Stipchekova, Martina	A combined approach for design concept variants assessment of a hydropower system Design and technology development of an innovative biode-gradable single-use cup
Stoev, Petko	Electric Power Consumption Forecasting In Bulgaria
Stoilov, Boris	Impact of SMOTE Oversampling on Machine Learning Classifiers for Preeclampsia Prediction Under Severe Class Imbalance: Evidence from a Bulgarian Screening Cohort
Stoilov, Todor	Analytical Recommendation for the Battery Capacity of a Photovoltaic System Minimizing the grid energy component when charging electric vehicles
Stoilova, Krasimira	Analytical Recommendation for the Battery Capacity of a Photovoltaic System Minimizing the grid energy component when charging electric vehicles
Stoyanov, Yordan	Aging Behavior and Wear Metal Evolution of Low-Viscosity SAE 0W20 Engine Oil during the First Service Interval
Sychev, Yegor	Implementing SLI/SLA/SLO Metrics in an ASP.NET 8 Microservices Architecture Using OpenTelemetry and Prometheus
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Taneva, Stiliyana	Identification of the Natural Frequencies of a MacPherson Suspension Using FFT, FRF, and Spectral Analysis Analysis of Natural Frequencies of a MacPherson Suspension using Different Bushings Elastic Characteristics
Tashev, Atanasi	Aging Behavior and Wear Metal Evolution of Low-Viscosity SAE 0W20 Engine Oil during the First Service Interval
Tasinov, Tasin	Investigation of the Influence of the k-Factor Parameter on the Quality of Printed Parts Using Ingeo Biopolymer 4043D
Terzieva, Radoslava	Investigation of the Corrosion of Steel S235JR in Common Beverages
Tezcan, Mustafa Kemal	Machine Learning-Based Heart Disease Prediction: A Comparative Analysis with Feature Importance Evaluation
Tezcan, Mustafa Kemal	Predictive Maintenance via Remaining Useful Life Estimation in Jet Engine Systems: A Comparative Analysis of Machine Learning Approaches Using NASA CMAPSS Dataset
Titova, Tanya	HVAC Duct Contamination and Its Impact on Energy Efficien-cy and Indoor Air Quality: Evaluation and Ranking of Inspec-tion Methods Using Multi-Criteria Analysis
Todorov, Todor	Investigation of the Influence of the k-Factor Parameter on the Quality of Printed Parts Using Ingeo Biopolymer 4043D
Tomanov, Nikola	Investigation of the Mechanical Properties and Electromagnetic Damping of Polymer Composites Reinforced with Carbon Particles and Cenospheres
Trencheva, Tereza	A Priori Reliability of Electrical Machines and Its Verification by Testing Expediency Assessment Of An Information System Based On The Reliability Characteristics Of Its Elements
Trifonov, Roumen	Heuristic Algorithm for Conceptual Learning
Tsonev, Veselin	The Influence of Infill Direction on the Tensile Strength of FDM 3D-printed ABS produced at high speed
Tsvetkov, Kristian	Overview of the Application of Innovation Management Tools and Methods in Industry
Tsvetkov, Valentin	Quantum Machine Learning for Enhanced Cardiovascular Disease Risk Prediction
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Ublekov, Filip	Investigation of the Mechanical Properties and Electromagnetic Damping of Polymer Composites Reinforced with Carbon Particles and Cenospheres
Umarova, Inobat	An investigation into the elemental composition and develop-ment of a scheme that is efficient in the enrichment of cop-per-bearing ores from the Yoshlik deposit (Uzbekistan)
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Valkanov, Vladimir	Data driven electricity forecasting for small grid tied photovol-taic power plants in the transition from centralized to distributed generation
Valkovski, Tsvetan	Research of Traffic Delays Caused by Pedestrian Crossing at a Light Regulated Intersection: Case Study of City of Sofia
Vangelova, Anastasia	Automated Assessment of Cognitive Levels in Bloom's Taxonomy through RAG-Based Architecture with LLMs
Vasilev, Kamen	Investigation of the Mechanical Properties and Electromagnetic Damping of Polymer Composites Reinforced with Carbon Particles and Cenospheres
Vasilovski, Borislav	Driver Visibility and Pedestrian Detection Distance in Nighttime Traffic Accident Reconstruction
Velchev, Yuliyan	Instrumentation used for VHF solar burst observations at the Bulgarian Antarctic Base during Solar Cycle 25.
Velichkova, Rositsa	Experimental assessment of formaldehyde gas emissions from laminate and solid parquet under simulated fire conditions
Y
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