Technical Science Integrated Research https://altumnova.com/index.php/tsir <p>Technical Science Integrated Research (ISSN 3051-3855) is a peer-reviewed academic journal dedicated to the publication of original research, theoretical studies, and practical developments in the broad field of technical sciences. The journal seeks to bridge diverse disciplines such as engineering, applied physics, computer science, materials science, and industrial technologies by fostering an integrated approach to solving contemporary scientific and technical challenges. Emphasizing interdisciplinary collaboration and innovative methodologies, the journal provides a platform for scholars, practitioners, and industry experts to present advancements that contribute to the development of effective, sustainable, and technologically-driven solutions. With a focus on both fundamental investigations and real-world applications, Technical Science Integrated Research aims to support scientific excellence and encourage the translation of research findings into impactful technologies and systems across various sectors.</p> en-US admin@altumnova.com (Sem Aarden) ( ) Wed, 10 Jun 2026 06:13:00 +0500 OJS 3.2.1.5 http://blogs.law.harvard.edu/tech/rss 60 University strategies for preserving and innovating Uzbek musical arts using audio archiving technologies https://altumnova.com/index.php/tsir/article/view/70 The preservation of Uzbek musical arts, particularly the Shashmaqom tradition and regional folk practices, has historically relied on oral transmission and memory. However, the twentieth century introduced analog recording technologies, and the twenty-first century has brought digital audio archiving, machine listening, and high‑resolution signal processing into the domain of cultural heritage management. Universities in Uzbekistan and beyond are uniquely positioned to lead this transformation, not merely as repositories of historical recordings but as active laboratories for technological innovation that serves both preservation and pedagogy. This article examines university‑led strategies for audio archiving of Uzbek music, focusing on three interconnected areas: the digitization and metadata standardization of Soviet‑era reel‑to‑reel collections, the application of digital signal processing (DSP) for noise reduction and microtonal analysis of maqom performances, and the development of interactive student access systems that allow time‑stretched, spectrogram‑linked playback for aural training. Drawing on case studies from the State Conservatory of Uzbekistan and collaborative projects with technical universities in Europe and East Asia, the article argues that audio archiving technologies, when implemented through thoughtful university strategies, can achieve more than passive preservation. They can generate new scholarly insights into Uzbek ornamentation practices, support the revitalization of endangered regional variants, and create scalable pedagogical tools that extend the reach of master musicians beyond the traditional usta‑shogird setting. Technical challenges including storage standards, format obsolescence, and the need for culturally informed metadata schemas are addressed alongside institutional recommendations for sustainable archiving workflows. Mavluda Ahmedova, Muminjon Muminov Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/70 Tue, 09 Jun 2026 00:00:00 +0500 Development of a multifunctional electronic device for real-time monitoring and automatic control of greenhouse microclimate parameters https://altumnova.com/index.php/tsir/article/view/71 This study presents the development of an intelligent IoT-based greenhouse microclimate monitoring and control system using ESP32 and PID algorithms. The proposed system automatically regulates temperature, humidity, CO₂ concentration, soil moisture, and illumination parameters through wireless cloud-based monitoring and adaptive actuator control. Experimental results demonstrated that the automated system reduced environmental parameter fluctuations by 85-92%, decreased electrical energy consumption by 34%, and reduced irrigation water consumption by 29% compared with conventional manual control methods. In addition, crop yield increased by 28% while improving product quality indicators. The developed architecture provides a low-cost, scalable, and energy-efficient solution for smart greenhouse automation and sustainable agricultural production. Solijon Ikromov, Omadjon Urishev Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/71 Tue, 09 Jun 2026 00:00:00 +0500 Organizing the teaching process based on an axiological approach https://altumnova.com/index.php/tsir/article/view/72 The modernization of contemporary education requires innovative pedagogical approaches that focus not only on knowledge acquisition but also on the formation of students’ moral values, personal responsibility, and social competence. The axiological approach, which emphasizes the role of values in education, has become one of the fundamental principles of learner-centered instruction. This article examines the theoretical foundations of organizing the teaching process based on an axiological approach, analyzes its pedagogical significance, and explores practical strategies for integrating value-oriented education into classroom activities. The study concludes that implementing an axiological approach contributes to students’ holistic development, critical thinking, ethical behavior, and lifelong learning competencies. Boburmirzo G‘aybullayev Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/72 Tue, 09 Jun 2026 00:00:00 +0500 Methodology for developing vocal pedagogy skills in future music teachers through digital learning environments and real‑time audio feedback systems https://altumnova.com/index.php/tsir/article/view/73 The preparation of future music teachers in vocal pedagogy has traditionally relied on face‑to‑face instruction, where a master teacher listens to a student’s singing and provides verbal or gestural feedback. While this model remains valuable, it is constrained by limited contact hours, the subjective nature of auditory memory, and the difficulty of providing detailed, repeatable feedback on acoustic features such as pitch accuracy, vibrato rate, timbral consistency, and breath onset. Digital learning environments integrated with real‑time audio feedback systems offer a compelling solution to these constraints, particularly within the context of Uzbek vocal traditions including Shashmaqom singing, folk song performance, and the epic dastan style. This article proposes a methodology for developing vocal pedagogy skills in future music teachers using a custom‑designed digital learning platform called UzVox‑Train, which combines a high‑resolution audio capture module, a real‑time signal processing engine for pitch and timbre analysis, a visual feedback interface displaying spectrograms and pitch contours, and a cloud‑based repository of model performances by master singers. The methodology is structured around four progressive phases, each supported by specific technical tools and pedagogical tasks. Drawing on a pilot study conducted with forty future music teachers at two Uzbek pedagogical universities, the article presents quantitative data on improvements in trainees’ ability to detect and diagnose vocal errors, as well as qualitative findings from interviews regarding the usability and perceived effectiveness of the system. The results indicate that trainees who used the digital learning environment with real‑time feedback showed significantly faster improvement in error detection accuracy and greater confidence in providing corrective feedback compared to a control group receiving traditional instruction alone. The article concludes with technical recommendations for implementing similar systems, including microphone selection, latency management, calibration procedures for different voice types, and integration with existing learning management platforms. Ulug’bek Burxonov Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/73 Tue, 09 Jun 2026 00:00:00 +0500 Memory in cognitive processes https://altumnova.com/index.php/tsir/article/view/74 This article explores the role of memory in cognitive processes as one of the key components of human mental activity. Memory is considered a fundamental cognitive function that ensures the acquisition, storage, and retrieval of information. The study analyzes theoretical approaches to memory, its types, mechanisms, and its relationship with other cognitive processes such as attention, thinking, and perception. Special attention is given to the psychological and pedagogical significance of memory in learning processes. The article also discusses strategies for improving memory efficiency in educational contexts. The findings indicate that memory plays a crucial role in cognitive development and directly influences learning performance and intellectual growth. Davlatbek Solohiddin-o‘g‘li Ahmedov Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/74 Tue, 09 Jun 2026 00:00:00 +0500 Integrated technical framework for lightweight UAV design, composite manufacturing, and predictive reliability support in civil aviation https://altumnova.com/index.php/tsir/article/view/75 Modern unmanned aerial vehicle (UAV) development can no longer be treated as a purely aerodynamic exercise; it depends on the coordinated handling of materials, manufacturing, aerodynamics, energy use, and in-service reliability. This paper develops a literature-based technical framework that links material selection, computer-aided configuration design, curing control of polymer composite parts, vacuum infusion manufacturing, computational fluid dynamics (CFD) evaluation, and predictive maintenance into a single engineering cycle. The synthesis draws on recent studies of V95P alloy wire behavior, automated UAV appearance design, curing of thick-walled composite components, multifunctional composite UAV design, and predictive maintenance of aircraft engines, supported by wider literature on composite aerostructures, resin infusion, energy management, and aircraft prognostics. The resulting five-layer model is intended as a methodological basis for UAV prototyping, aviation engineering education, and civil aviation research, rather than as an experimentally validated design. Farhod Umirovich Umarov Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/75 Tue, 09 Jun 2026 00:00:00 +0500 Application of KNN and SVM classification algorithms in artificial speech recognition by emotion detection in speech signals https://altumnova.com/index.php/tsir/article/view/76 The creation of modern technologies for detecting emotional changes in individuals in speech signals and providing users with the necessary information for themselves, representing speech signals in digital form, filtering, extracting the necessary features, modelling and analysing them, recognizing a person's voice using intelligent algorithms and software for digital processing, creating voice-controlled devices, examining patients' speech disorders in medicine, classifying speech features, and recognizing a person in speech signals and separating them from artificial speech are urgent issues. To this end, several scientific research works are being carried out aimed at developing and improving methods for separating individual emotions in speech signals and artificial speech using artificial intelligence elements. This article develops artificial speech recognition based on the presence or absence of emotions in speech signals using speech signal features and spectrogram parameters, statistical modelling and classification of speech signals using machine learning algorithms, in particular k-NN and SVM, automatic detection of complex features in speech signals, and analysis and technical solutions for analysing spectrograms of speech data based on deep learning algorithms. Sultanmurat Nasirov, Indira Azatovna Khodzamuratova Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/76 Tue, 09 Jun 2026 00:00:00 +0500 Application of modified polymer adhesives at industrial scale and development prospects https://altumnova.com/index.php/tsir/article/view/77 This article analyzes the industrial-scale application of modified polymer adhesives in the construction, mechanical engineering, transport, and electronics sectors. The principal areas of application of epoxy, polyurethane, acrylic, and silane-modified systems are reviewed, together with their advantages and limitations. Colloidal challenges - aggregation, phase separation, and sedimentation - as well as approaches for their mitigation are examined. The development prospects of nano-filled and bio-based adhesive systems are discussed, along with the strategic importance of producing import-substituting adhesive materials from domestic raw materials in the context of Uzbekistan. Alisher Qurbonmurod-oʻgʻli Tursunboyev, Mirshod Muysin-o‘g‘li Ashurov, Alisher Xudoyberdi-o‘g‘li Raximov Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/77 Tue, 09 Jun 2026 00:00:00 +0500 Technological effectiveness of STEAM-based mini projects in chemistry education https://altumnova.com/index.php/tsir/article/view/78 The integration of Science, Technology, Engineering, Arts, and Mathematics (STEAM) principles into chemistry education has become an important strategy for developing students’ scientific literacy, creativity, problem-solving abilities, and interdisciplinary thinking. Among various STEAM-oriented instructional approaches, mini-projects represent an effective educational tool that enables learners to apply theoretical knowledge to practical situations while actively participating in the learning process. The present study investigates the technological effectiveness of STEAM-based mini projects in chemistry education and evaluates their impact on students’ learning outcomes, engagement, and practical competencies. The research was conducted through the design and implementation of a series of STEAM-based mini projects related to chemical technologies, environmental chemistry, materials science, and everyday chemical phenomena. The projects incorporated scientific inquiry, technological applications, engineering design, artistic creativity, and mathematical analysis within a unified learning framework. Students were required to identify real-world problems, develop project solutions, construct models or prototypes, perform experiments, analyze data, and present their findings. The effectiveness of the proposed approach was assessed through analysis of students’ academic performance, practical skills, project outcomes, and learning motivation. Particular attention was given to the development of interdisciplinary competencies, scientific reasoning, technological thinking, collaboration, and communication skills. The obtained results demonstrated that participation in STEAM-based mini projects significantly enhanced students’ conceptual understanding of chemistry and improved their ability to apply scientific knowledge in practical contexts. The implementation of mini-project activities increased student engagement, promoted independent learning, and encouraged creative problem-solving. The interdisciplinary nature of STEAM projects facilitated the integration of chemistry with technology, engineering, arts, and mathematics, thereby creating meaningful learning experiences and strengthening the connection between theoretical concepts and real-world applications. The findings indicate that STEAM-based mini projects constitute an effective educational technology capable of improving the quality of chemistry instruction and fostering essential twenty-first-century skills. The study highlights the pedagogical value of project-oriented STEAM learning and supports its broader implementation in chemistry education to enhance students’ scientific competence, technological literacy, and innovative thinking. Sevinch Ahmadovna Haydarova, Khonbuvi Zhamol-kizi Arzimurodova Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/78 Tue, 09 Jun 2026 00:00:00 +0500 Investigation of the synthesis, structure, and thermal properties of starch-modified biopolymers https://altumnova.com/index.php/tsir/article/view/79 The growing demand for environmentally friendly and biodegradable materials has stimulated extensive research into the development of starch-based biopolymers as sustainable alternatives to conventional petroleum-derived plastics. In the present study, a starch-modified biopolymer was synthesized through a controlled modification process aimed at improving its structural stability and thermal performance. The synthesized material was comprehensively characterized to investigate its physicochemical, structural, and thermal properties. Structural analysis was carried out using Fourier Transform Infrared (FTIR) spectroscopy to identify functional groups and confirm the successful modification of the starch matrix. Morphological and structural features were further evaluated through complementary analytical techniques, providing insight into the interactions between starch molecules and modifying agents. The thermal behavior of the synthesized biopolymer was examined using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), allowing the determination of thermal stability, degradation characteristics, and phase-transition behavior. The obtained results demonstrated that the modification process significantly enhanced the thermal resistance and structural integrity of the biopolymer compared with native starch. The modified material exhibited improved thermal stability, reduced moisture sensitivity, and favorable physicochemical characteristics, indicating its potential suitability for various industrial applications. These findings contribute to the development of sustainable biopolymer materials and provide valuable information for their future utilization in packaging, agricultural, biomedical, and environmentally friendly engineering applications. Otabek Toshpulot-oglu Ismatov, Golib Sherzod-oglu Kholzhigitov, Ulugbek Khayrullo-oglu Pardaev, Zhamshid Shermatovich Bobozhonov Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/79 Tue, 09 Jun 2026 00:00:00 +0500 Investigation of the physicochemical properties of Alizarin Red S-immobilized sorbent for the determination of Zn(II) ions https://altumnova.com/index.php/tsir/article/view/80 The development of efficient sorption materials for the selective determination of metal ions remains an important area of analytical chemistry and environmental monitoring. In the present study, the physicochemical properties of an Alizarin Red S-immobilized sorbent were investigated with the aim of evaluating its suitability for the determination of Zn(II) ions in aqueous media. Alizarin Red S, a widely used chromogenic reagent containing hydroxyl and sulfonic functional groups, was immobilized onto a solid support to obtain a stable sorption system with enhanced analytical performance. The prepared sorbent was characterized using physicochemical and spectroscopic methods to assess its structural features, surface properties, and interaction mechanisms with Zn(II) ions. Particular attention was given to the influence of immobilization on the functional groups of the reagent and the stability of the resulting sorbent. The sorption behavior of Zn(II) ions was investigated under different experimental conditions, including solution pH, contact time, and initial metal ion concentration. The sorption efficiency and analytical characteristics of the immobilized system were also evaluated. The results demonstrated that immobilization of Alizarin Red S onto the solid matrix produced a chemically stable sorbent possessing a high affinity toward Zn(II) ions. The sorption process was strongly influenced by the acidity of the solution, with maximum sorption observed in the weakly alkaline medium. The immobilized reagent retained its complex-forming ability and exhibited favorable physicochemical characteristics, including good stability, reproducibility, and sorption capacity. Spectroscopic investigations confirmed the participation of hydroxyl and carbonyl functional groups in the formation of Zn(II)-Alizarin Red S complexes on the sorbent surface. The obtained findings indicate that the Alizarin Red S-immobilized sorbent can serve as an effective material for the preconcentration and determination of Zn(II) ions. The combination of selective complex formation, high sorption efficiency, and favorable physicochemical properties makes the developed sorbent a promising analytical tool for environmental, industrial, and laboratory applications involving zinc ion determination. Guliza Abduvali-kizi Hasanova, Oyshazhon Sobir-kizi Karriboeva, Khurshida Razhabboyovna Kosimova Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/80 Tue, 09 Jun 2026 00:00:00 +0500 Technological capabilities of the CS350M corrtest potentiostat for corrosion process investigation https://altumnova.com/index.php/tsir/article/view/81 Corrosion remains one of the most significant challenges affecting the durability, reliability, and economic performance of metallic materials used in industrial, engineering, and technological applications. Accurate evaluation of corrosion behavior requires advanced electrochemical techniques capable of providing rapid, reliable, and quantitative information regarding corrosion mechanisms and rates. In recent years, potentiostatic and galvanostatic electrochemical systems have become indispensable tools for corrosion research due to their high sensitivity and analytical capabilities. Among these systems, the CS350M Corrtest Potentiostat has attracted considerable attention because of its multifunctional design and wide range of electrochemical measurement techniques. The present study investigates the technological capabilities of the CS350M Corrtest Potentiostat for corrosion process analysis and evaluates its effectiveness in electrochemical corrosion research. Particular attention is devoted to the application of the instrument for potentiodynamic polarization measurements, Tafel analysis, electrochemical impedance spectroscopy (EIS), open-circuit potential monitoring, and corrosion rate determination. The operational principles, measurement accuracy, data acquisition capabilities, and analytical performance of the instrument were examined under laboratory conditions. The results demonstrated that the CS350M Corrtest Potentiostat provides highly reproducible electrochemical data and enables comprehensive characterization of corrosion processes occurring at metal–electrolyte interfaces. Potentiodynamic polarization studies allowed accurate determination of corrosion potential, corrosion current density, and Tafel slopes, while EIS measurements provided detailed information concerning charge-transfer resistance, double-layer capacitance, and protective film properties. The integrated software environment facilitated real-time data acquisition, processing, and interpretation of electrochemical parameters. The instrument exhibited excellent sensitivity in detecting variations in corrosion behavior under different experimental conditions, including changes in electrolyte composition, inhibitor concentration, and surface treatment. The versatility of the CS350M system makes it suitable for investigating corrosion mechanisms, evaluating corrosion inhibitors, studying protective coatings, and assessing material performance in aggressive environments. The findings indicate that the CS350M Corrtest Potentiostat represents a powerful and reliable electrochemical platform for corrosion research. Its broad range of analytical functions, high measurement precision, and advanced data-processing capabilities provide significant advantages for both fundamental corrosion studies and practical industrial applications. The study confirms the effectiveness of the instrument as a valuable tool for modern corrosion science and electrochemical material characterizat Yulduz Dostonbek-kizi Akramova, Umida Sherali-kizi Ismoilova, Otabek Artikovich Kuchkarov Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/81 Tue, 09 Jun 2026 00:00:00 +0500 Improving the process of concept acquisition through the use of the project method in chemistry education https://altumnova.com/index.php/tsir/article/view/82 The effective acquisition of scientific concepts is a fundamental objective of chemistry education, as it enables students to understand, interpret, and apply chemical knowledge in both academic and real-life contexts. However, traditional teacher-centered instructional approaches often limit students’ active participation in the learning process and may hinder the development of deep conceptual understanding. In this regard, the project method has emerged as an effective pedagogical approach that promotes student-centered learning, problem-solving, collaboration, and practical application of knowledge. This study investigates the role of the project method in improving the process of concept acquisition in chemistry education. The research focuses on the implementation of project-based learning activities designed to engage students in exploring chemical phenomena, conducting investigations, and developing solutions to real-world problems related to chemistry. Through active participation in project work, students are encouraged to connect theoretical concepts with practical experiences, thereby enhancing their conceptual understanding and cognitive engagement. The effectiveness of the project method was evaluated by analyzing students’ learning outcomes, conceptual understanding, and participation in project-based activities. Particular attention was given to the development of higher-order thinking skills, independent learning abilities, and the capacity to apply chemical concepts in authentic situations. The findings indicate that the project method contributes significantly to the acquisition of chemical concepts by promoting meaningful learning experiences and increasing students’ motivation toward chemistry. The results further demonstrate that project-based learning facilitates the integration of theoretical knowledge with practical applications, enhances collaborative learning, and supports the development of scientific reasoning skills. Students involved in project activities showed improved understanding of key chemical concepts and greater ability to transfer acquired knowledge to new situations. The study confirms that the project method represents an effective instructional strategy for improving concept acquisition in chemistry education. Its implementation contributes to the development of active, motivated, and conceptually competent learners capable of applying chemical knowledge in academic, professional, and everyday contexts. Nafisa Asliddin-kizi Yaxshinorova, Gulnora Boymat-kizi Karimova, Makhsudjon Umurzokovich Tilyabov Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/82 Tue, 09 Jun 2026 00:00:00 +0500 The importance of problem-based tasks in enhancing functional literacy among future chemistry teachers https://altumnova.com/index.php/tsir/article/view/83 The development of functional literacy has become one of the primary objectives of contemporary education, particularly in the preparation of future teachers who are expected to apply scientific knowledge effectively in real-life situations. In chemistry education, problem-based tasks serve as an important pedagogical tool for fostering students’ analytical thinking, problem-solving abilities, and the practical application of theoretical concepts. This study investigates the importance of problem-based tasks in enhancing the functional literacy of future chemistry teachers. The research focuses on the design and implementation of chemistry tasks based on real-life and professionally oriented problem situations. These tasks were developed to encourage students to analyze information, evaluate evidence, make informed decisions, and apply chemical knowledge to everyday and professional contexts. A quasi-experimental approach was employed to assess the effectiveness of problem-based tasks in improving students’ functional literacy skills. The findings indicate that the systematic use of problem-based tasks significantly contributes to the development of functional literacy by promoting scientific reasoning, critical thinking, and the ability to transfer acquired knowledge to unfamiliar situations. Furthermore, the results demonstrate that students exposed to problem-based learning activities show higher levels of engagement, independence, and competence in solving practical chemistry-related problems compared with those taught through traditional instructional methods. The study highlights the pedagogical value of integrating problem-based tasks into chemistry teacher education programs and emphasizes their role in preparing future teachers for the demands of modern educational practice. The results may serve as a methodological basis for improving chemistry curricula aimed at developing functional literacy and meeting the requirements of contemporary educational standards. Mubina Olimboy-kizi Khurramova, Gulhayo Abdumalik-kizi Mazhidova, Maftuna Akramovna Togaeva Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/83 Tue, 09 Jun 2026 00:00:00 +0500 Synthesis of novel N-isoquinolinyl derivatives of 6-methyluracil and their structural elucidation by modern physicochemical techniques https://altumnova.com/index.php/tsir/article/view/84 6-Methyluracil is an important pyrimidine derivative that serves as a valuable building block for the synthesis of biologically active heterocyclic compounds. The incorporation of nitrogen-containing heterocyclic fragments into the 6-methyluracil molecule represents an effective approach for obtaining novel compounds with improved physicochemical and potential pharmacological properties. Among various heterocyclic systems, isoquinoline derivatives have attracted considerable scientific interest due to their structural diversity and wide range of biological activities. Therefore, the synthesis of novel N-isoquinolinyl derivatives of 6-methyluracil and the investigation of their structural characteristics are of significant importance for modern organic and medicinal chemistry. In the present study, a series of novel N-isoquinolinyl derivatives of 6-methyluracil were synthesized through nucleophilic substitution and N-alkylation reactions involving 6-methyluracil and isoquinoline-containing intermediates. The reaction conditions were optimized with respect to solvent, temperature, reaction time, and reagent ratio in order to achieve maximum yields of the target products. The synthesized compounds were isolated in good yields and purified by recrystallization. The structures of the obtained derivatives were comprehensively characterized using modern physicochemical techniques, including Fourier-transform infrared (FTIR) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, proton and carbon nuclear 1 13magnetic resonance ( H and C NMR) spectroscopy, mass spectrometry, and elemental analysis. The spectral data confirmed the successful introduction of the isoquinoline fragment into the 6-methyluracil molecule and provided detailed information regarding the molecular structures of the synthesized compounds. FTIR spectra revealed characteristic absorption bands corresponding to N–H, C=O, C=N, and aromatic functional groups, while NMR spectroscopy confirmed the chemical environments of hydrogen and carbon atoms within the synthesized molecules. Mass spectrometric analysis further verified the molecular masses of the target compounds and supported the proposed structures. The obtained results demonstrated the successful synthesis of novel N-isoquinolinyl derivatives of 6-methyluracil and confirmed their structural integrity through complementary analytical techniques. The study provides valuable information concerning the synthesis and structural characterization of new pyrimidine–isoquinoline hybrid molecules and establishes a scientific basis for future investigations of their physicochemical, biological, and pharmacological properties. Fayyoza Orifzhon kizi Tukhtaeva, Mehroj Murodullaevich Kholmirzaev Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/84 Tue, 09 Jun 2026 00:00:00 +0500 Investigation of the physicochemical properties of novel urea-organic amine complexes for agricultural applications https://altumnova.com/index.php/tsir/article/view/85 The development of environmentally friendly and highly efficient agrochemical materials is an important objective of modern agricultural chemistry. Among various approaches, the synthesis of urea-based organic complexes has attracted considerable attention due to their potential to improve nutrient availability, enhance physicochemical stability, and increase fertilizer efficiency. In the present study, novel urea-organic amine complexes were synthesized and their physicochemical properties were systematically investigated with the aim of evaluating their potential agricultural applications. The synthesized complexes were prepared through interactions between urea and selected organic amines under controlled experimental conditions. Their physicochemical characteristics were examined using a combination of analytical and instrumental techniques. Particular attention was devoted to structural features, thermal behavior, solubility characteristics, and important physicochemical parameters, including pH, density, viscosity, and refractive index. The influence of organic amine incorporation on the properties of the resulting complexes was also assessed. The obtained results demonstrated the successful formation of stable urea-organic amine complexes exhibiting distinct physicochemical properties compared with the individual starting components. Structural investigations confirmed the presence of intermolecular interactions between urea molecules and organic amines, leading to the formation of new supramolecular systems. Thermal analysis revealed satisfactory thermal stability of the synthesized complexes, while solubility studies indicated favorable dissolution behavior in aqueous media. Significant variations in density, viscosity, and pH values were observed depending on the nature of the organic amine component, reflecting changes in molecular organization and intermolecular interactions. The synthesized complexes exhibited physicochemical characteristics that may contribute to improved nutrient utilization and controlled release behavior in agricultural systems. Their enhanced stability and favorable solubility properties suggest potential applicability as components of advanced agrochemical formulations. Furthermore, the ability to modify the physicochemical parameters of the complexes through selection of appropriate organic amines provides opportunities for tailoring their properties to specific agricultural requirements. The findings demonstrate that novel urea-organic amine complexes represent promising materials for agricultural applications. The comprehensive physicochemical characterization performed in this study provides valuable information regarding their structure-property relationships and establishes a scientific basis for future investigations involving agronomic performance, nutrient availability, and fertilizer efficiency. Chekhrona Abdurasul kizi Ibragimova, Bekzod Shermatovich Khudoyberdiev Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/85 Tue, 09 Jun 2026 00:00:00 +0500 Structural characterization and physicochemical properties of synthesized acetamiprid https://altumnova.com/index.php/tsir/article/view/86 Acetamiprid is one of the most widely used neonicotinoid insecticides due to its high effectiveness, chemical stability, and broad applicability in modern agricultural practices. Understanding its structural and physicochemical characteristics is essential for evaluating its quality, stability, and potential applications in pesticide formulations. In the present study, acetamiprid was synthesized under controlled laboratory conditions and comprehensively characterized using a range of physicochemical and spectroscopic techniques. The structural characterization of the synthesized compound was carried out using Fourier Transform Infrared (FTIR) spectroscopy, which confirmed the presence of characteristic functional groups associated with acetamiprid. The physicochemical properties of the synthesized product, including solubility, pH, density, refractive index, and thermal behavior, were systematically investigated. Thermal stability and decomposition characteristics were evaluated using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). In addition, structural features and crystallinity were assessed through complementary analytical methods to verify the purity and molecular integrity of the synthesized compound. The obtained results demonstrated that the synthesized acetamiprid exhibited physicochemical properties consistent with those reported for high-purity commercial acetamiprid. FTIR analysis confirmed the successful formation of the target molecular structure, while thermal studies revealed satisfactory thermal stability within the investigated temperature range. The compound showed favorable physicochemical characteristics, indicating the effectiveness of the synthesis procedure and purification process. The study provides valuable information regarding the structural characteristics and physicochemical behavior of synthesized acetamiprid. The findings contribute to a better understanding of the relationship between molecular structure and physicochemical properties and may serve as a basis for future investigations involving formulation development, stability assessment, and quality control of acetamiprid-based products. Lobar Ikromzhon-kizi Sayilboeva, Diyora Utamurod-kizi Ergasheva, Eldor Safariddinovich Khusanov Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/86 Tue, 09 Jun 2026 00:00:00 +0500 Energy-efficient methods in meat product production https://altumnova.com/index.php/tsir/article/view/87 This article analyzes energy-efficient innovative technologies in meat product production. Issues related to improving energy efficiency, modern cooling systems, heat pumps, digital monitoring, and the use of renewable energy sources are examined. Xusan Inomjonovich Turdaliyev, Mirazam Foziljon-o‘g‘li Meliboyev, Shaxnoza Adxamjon-qizi Xamraqulova Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0 https://altumnova.com/index.php/tsir/article/view/87 Tue, 09 Jun 2026 00:00:00 +0500