Vol. 59 No. 3 (2024)

Published: 2024-05-07

Articles

STUDY OF SOLUBILITY PROPERTIES OF COMPONENTS IN ACETATE UREA - TRIETHANOLAMINE - WATER SYSTEM

Eldor Khusanov, Zhamshid Shukhurov

497-504
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THE DEPENDENCE OF ACID-BASE EQUILBRIA AND ACIDITY CONSTANTS OF CONGO RED IN BUFFER SOLUTIONS ON THE IONIC STRENGTH

Sokaina Saad Hemdan

505-512
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STUDY OF SOLUBILITY OF CO(NH2)2 - HOOC - COOH · NH2C2H4OH - H2O SYSTEM

Bakhtiyor Akhmedov, Zhamshid Shukhurov, Ilkhom Abdurakhmanov, Rizamat Begmatov

513-520
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PROCESSING OF A WASHED DRY CONCENTRATE CONTAINING 26% P2O5 INTO AMMOPHOSPHATE, SULPHO- AND NITROAMMOPHOSPHATE FERTILIZERS

Azam A. Rasulov, Shafoat S. Namazov, Atanazar R. Seytnazarov, Umarbek K. Alimov, Bokhodir E. Sultonov

521-529
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BIOACTIVE PROPERTIES AND MORPHOLOGICAL FEATURES OF HYDROXYAPATITE/ZINC OXIDE HYBRID REINFORCED BIO-BASED EPOXY RESIN COMPOSITES FOR DENTISTRY

Sunday Gbenga Borisade, Seun Samuel Owoeye, Isiaka Oluwole Oladele, Oladimeji Niyi Iyanuoluwa

531-537
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INVESTIGATING THE EFFECT OF HYDROGEN PEROXIDE ON PHOTOCATALYTIC DEGRADATION OF COMMERCIAL PARACETAMOL USING TiO2

Khoiriah Khoiriah, Reza Audina Putri, Ratnawati Ratnawati, Mega Puspita Sari

539-548
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ANTIBACTERIAL AND ANTIOXIDANT ACTIVITY OF COSMETIC CREAMS WITH EXTRACTS OF DRY FLOWERS AND FRUITS OF SAMBUCUS NIGRA L. - USE OF SAMBUCUS NIGRA L. AS A NON-TRADITIONAL CHEMICAL PRESERVATIVE

Kamelia Petkova - Parlapanska, Yordan Handzhiyski, Ekaterina Georgieva, Galina Nikolova, Yаnka Karamalakova

549-557
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REVIEW ON THE SYNTHESIS OF ALPHA-LIPOIC ACID AND ITS THERAPEUTIC POTENTIAL IN EXPERIMENTAL MODEL OF DEMENTIA

Hristian Staykov, Reni Kalfin, Lyubka Tancheva

559-567
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SYNTHESIS OF Ag-MODIFIED TiO2 SOL-GEL FILMS AND ITS APPLICATION AS PHOTOCATALYSTS FOR METHYLENE BLUE DEGRADATION

Nina Kaneva, Assya Bojinova, Ralitsa Mladenova, Hristo Kolev, Bozhidar Stefanov

569-574
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DIVERSITY AND PHYTATE-DEGRADING POTENTIAL OF YEAST MICROORGANISMS ISOLATED FROM SOURDOUGH

Nadezhda Dimitrova Nankova, Emiliya Ivanova Pisareva, Ventsislava Yankova Petrova, Anna Atanasova Tomova

575-584
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RESOURCE-SAVING WHEAT STRAW PROCESSING TECHNOLOGY

Iryna Trembus, Nazarii Mykhailenko

585-590
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STUDY OF THE INFLUENCE OF CONSERVATION TREATMENT ON THE CHROMATIC CHARACTERISTICS OF ARABIC MANUSCRIPTS

Iordanka Ivanova, Iskren Spiridonov, Rumyana Boeva

591-598
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PHYSICO-CHEMICAL ANALYSIS OF QUARTZ SAND AND TECHNOLOGICAL WASTE USED AS A MAIN RAW MATERIAL FOR GLASS PRODUCTION

Khidir A. Adinaev, Zulayhа R. Kadyrova

599-604
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APPLICATION OF SPARK PLASMA SINTERING AS A METHOD FOR PRODUCING NEW CERAMIC MATERIALS FROM SILICON PRODUCTION WASTE

Gulzhainat Akhmetova, Gulnara Ulyeva, Kurmet Tuyskhan, Irina Volokitina

605-611
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SYNTHESIS AND CHARACTERIZATION OF PURE AMORPHOUS SILICON OXIDE FROM TREATED KAOLINITIC CLAY USING CHEMICAL EXTRACTION

Sunday Gbenga Borisade, Seun Samuel Owoeye, Aderonke Ayeni

613-622
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PORT INJECTION OF DIESEL, BIODIESEL, AND PETROL IN A COMPRESSION IGNITION DIRECT INJECTION DIESEL ENGINE TO MITIGATE NITROGEN OXIDES AND SOOT EMISSIONS

Subramanian Sendilvelan, Kannayiram Gomathi, Larissa Sassykova, Muthuswamy Prabhahar

623-632
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METHANE PRODUCTION FROM COW MANURE IN THE PRESENCE OF Bi(III) COMPLEX OF SULFAMIC ACID

Anelia Tzanova, Nikolay Kaloyanov, Kamelia Ruskova, Alexander Zahariev

633-638
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SYNTHESIS OF COPOLYMERS FOR PROTECTIVE COATINGS

Vladimir Merkulov, Gulnara Ulyeva, Gulzhainat Akhmetova, Andrey Volokitin

639-646
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METHODOLOGY AND EQUIPMENT FOR RESEARCHING CORROSION CRACKING PROCESSES IN CASTING ALLOYS

Maria Krasteva

647-652
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EXPLORING STRENGTHENING MECHANISMS OF ULTRAFINE-GRAINED Fe35Mn27Ni28Co5Cr5 HIGH-ENTROPY ALLOY PROCESSED BY SEVERE COLD ROLLING PROCESS

Majid Naseri, Ahmad Ostovari Moghaddam, Sergey Lezhnev, Nataliya Shaburova, Anatoliy Pellenen, Evgenii Bodrov, Evgeniy Panin, Marina Samodurova, Evgeny Trofimov

653-660
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COMPUTER SIMULATION OF PRELIMINARY HEAT TREATMENT AND RADIAL-SHEAR ROLLING OF BRASS

Abdrakhman Naizabekov, Sergey Lezhnev, Evgeniy Panin, Alexandr Arbuz, Andrey Tolkushkin, Pavel Tsyba, Vasily Rubanik, Yury Tsarenko

661-671
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THERMOPHYSICAL PROPERTIES OF HYPOEUTECTIC, EUTECTIC AND HYPEREUTECTIC Al-Si AUTOMOTIVE ALLOYS UNDER AGEING TREATMENT

Ahmed Asif Razin, Dewan Sal-Sabil Ahammed, Akib Abdullah Khan, Mohammad Salim Kaiser

673-682
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MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ALUMINUM AND A356 ALLOY FOAMS CRYSTALLIZED IN A THIN-WALLED WATER-COOLED MOLD

Rositza Dimitrova, Tatiana Simeonova, Boyko Krastev, Angel Velikov, Valentin Manolov

683-691
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STUDY OF STEELS FOR THE PURPOSE OF COMPARISON IN TERMS OF QUALITY INDICATORS AND ENERGY EFFECT OF THEIR PRODUCTION

Rositsa Gavrilova

693-698
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ENERGY AND POWER PARAMETERS OF ROLLING PROFILES FOR WHEEL RIMS WITH REDUCED METAL INTENSITY AND TAPERED SEATS

Valeriy Chigirinsky, Irina Volokitina

699-706
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FREE UNDAMPED SPATIAL VIBRATIONS OF A ROBOT FOR PROCESS AUTOMATION IN METALLURGY

Valentin Slavov, Verjinia Aleksandrova

707-711
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FEATURES OF THE FORMATION OF THE NANOSTRUCTURAL STATE OF THE SURFACE LAYER OF STEEL PARTS DURING PROCESSING AND OPERATION

Volodymyr Tsyganov, Sergey Sheyko, Oleksii Hrechanyi, Tetyana Vasilchenko, Elena Kulabneva, Anastasiia Hrechana

713-720
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ELASTOHYDRODYNAMIC EFFECTS IN LUBRICATION OF JOURNAL BEARINGS UNDER TURBULENT CONDITIONS

Juliana Javorova, Iliya Andonov, Traian Severin, Luminita Irimescu, Yovko Rakanov

721-728
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MULTIMODAL SYSTEM FOR FACIAL EMOTION RECOGNITION BASED ON DEEP LEARNING

Atanas Atanassov, Dimitar Pilev, Fani Tomova

729-740
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TOPOLOGY OF GALVANIC ISOLATED BATTERY CHARGING UNIT WITH POWER FACTOR CORRECTION

Yovko Rakanov

741-746
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