SECTION 1. ENERGY PERSPECTIVES
Saydakhmedov Elyorbek Egamberdiyevich
DSc, professor, Deputy Chairman of the Board, JSC «O’ZLITINEFTGAZ», Tashkent, Uzbekistan
E-mail: e.saydakhmedov@liting.uz
Abstract
This study investigates the effect of introducing elemental sulfur into the oxidation feedstock during the production of oxidized petroleum bitumen. Vacuum residue from fuel oil distillation and granular sulfur were used as the base materials. Oxidation experiments were carried out at 230 °C with controlled air flow, varying the sulfur concentration from 0 % to 5 %. The results showed that introducing sulfur in optimal amounts (up to 2 %) significantly improves the physical and mechanical properties of the resulting sulfur–bitumen binders — increasing penetration and ductility and lowering brittleness temperature — compared to conventional oxidized bitumen. Higher sulfur concentrations (> 5 %) lead to process inefficiency and deterioration of binder properties. The findings confirm that sulfur additives can be effectively used to intensify the oxidation process, enhance product quality, and optimize production parameters for bitumen manufacturing.
Keywords: oil bitumen, sulfur, needle penetration, tar, oxidation process, softening point
SECTION 2. APPLIED CHEMISTRY
Mussatay Yessengeldi Amangeldiyuly
Al-Farabi Kazakh National University, Almaty, Kazakhstan
E-mail: esenshon104@mail.ru
Abstract
This study presents the results of thermochemical synthesis and functional modification of carbon–silicon sorbents derived from rice husks, intended for use as filtering materials with antiseptic properties. Carbonization was carried out in an inert gas atmosphere at temperatures ranging from 600 to 900 °C, followed by activation in a flow of carbon dioxide or water vapor. The resulting porous structures were characterized by a high specific surface area (up to 550 m²/g) and a considerable micropore volume. Molecular iodine, chlorhexidine gluconate, and tannin were employed as impregnating agents. Experimental data confirmed the ability of the sorbent to absorb iodine vapors from both gaseous and liquid phases, with a saturation capacity of up to 259 mg/g. The influence of impregnation on the textural properties of the material was investigated: an increase in specific surface area and pore volume was observed upon the introduction of active components. BET analysis demonstrated a total micropore surface area of up to 551 m²/g, confirming the efficiency of the modification for air purification purposes. The developed filtering monoblocks are promising for application in air disinfection systems within enclosed and sanitation-sensitive environments.
Keywords: Carbon–silicon sorbents, carbonization, activation, iodine, antiseptic activity, porous structure, filtering materials, rice husk, adsorption
Rajabov Shukhrat Kholmurodovich
PhD, Associate Professor, Department of Chemical Production Technology, Faculty of Chemistry, Tajik National University, Dushanbe, Tajikistan
E-mail: R.Shuhrat.Kh@mail.ru
Abstract
Тhe technology of reception cryolite and fluoride of aluminum from alumina-, fluorine containing aluminum production wastes. In the present article technology of reception cryolite and fluoride of aluminum from alumina and fluorine containing wastes of aluminum production is descried. The physical and chemical analysis is carried out optimum condition of process passing and defined compositions of raw materials and products.
Keywords: aluminum production, alumina and fluorine containing wastes, aluminum manufacture, acidic decomposition, fluoric acid, criolite and aluminum fluoride production.
SECTION 3. GREEN SOLUTIONS
Muhammad Usman Ali
PhD Scholar, Department of Mechanical Engineering, International Islamic University, Islamabad, Pakistan
E-mail: muhammad.phdem24@iiu.edu.pk | ORCID: 0009-0000-4089-8992
Engr. Dr. Yasir Muhammad
Associate Professor, Department of Electrical Engineering, COMSATS University Islamabad, Attock Campus, Pakistan
E-mail: yasir.ee@ciit-attock.edu.pk
Engr. Dr. Ehtasham Mustafa
Assistant Professor, Department of Electrical Engineering, Faculty of Engineering & Technology, Gomal University, Dera Ismail Khan, Pakistan
E-mail: ehtashammustafa@gu.edu.pk
Shahzad Akbar
PhD Scholar, Department of Mechanical Engineering, International Islamic University, Islamabad, Pakistan
E-mail: muhammad.phdese3@iiu.edu.pk
Abstract
The solar energy sector is swiftly advancing to address increasing energy demands and diminish reliance on fossil fuels. Nonetheless, inefficiencies, resource wastage, and elevated operational expenses persist in obstructing sustainable development. This study seeks to establish a strategy framework for attaining sustainability in Pakistan’s solar business by implementing Lean Management practices. Lean approaches, recognized for improving operational efficiency through waste reduction and value maximization, possess significant potential to revolutionize solar project management in the local context. The study also reveals the obstacles that impede the adoption of Lean practices. The study utilizes a mixed-methods approach, commencing with an extensive literature analysis to delineate the conceptual connection between Lean concepts and sustainability features. Primary data were obtained through standardized questionnaires administered to key stakeholders, such as managers, engineers, and sustainability officers inside Pakistan’s solar energy companies. The aims were to: (1) investigate stakeholder awareness and views of Lean and sustainability; (2) evaluate the correlation between Lean practices; and (3) utilize these findings to develop a feasible framework for Lean integration. Research demonstrates a robust acknowledgment among professionals on the significance of Lean principles in advancing sustainability within the solar sector. The utilization of methodologies such as Value Stream Mapping (VSM), Just-in-Time (JIT) inventory management, and continuous improvement (Kaizen) demonstrated substantial beneficial associations with diminished project delays, cost reductions, and improved collaboration. The study pointed out the barriers and, in this regard, the suggested framework integrates Lean practices with the operational realities of solar installation in Pakistan, offering a blueprint to enhance productivity, minimize waste, and promote national sustainability objectives. The study underscores the significance of company culture, leadership dedication, and governmental assistance in enabling Lean transformation. Training programs and stakeholder participation are recognized as essential facilitators for successful adoption, in addition to improve performance, promote sustainability, and facilitate the overall shift to clean energy.
Keywords: Lean Management (LM); Solar Energy; Sustainability; Renewable Energy; Waste Reduction; Project Efficiency; Operational Performance; Lean Management Practices (LMP), Lean tools
Faiz Jalil
Islamic international university, Islamabad, Pakistan
E-mail: muhammad.phdem24@iiu.edu.pk
Dr Rafiq Mansoor. M Usman
Islamic international university, Islamabad, Pakistan
E-mail: rafiq.mansoor@iiuedu.pk
Abstract
Uncertainties and Ambiguities in Accepting Wind Power Projects considered as a necessary phenomenon in development and the implementation of wind power technologies. It is generally argued that public attitudes need to be changed to change the implementation of possible wind energy technologies. The purpose of this analysis is to explore the perceptual factors pertinent to social acceptance of wind energy technologies with special focus on Sahven Sharif and Sakarand wind farms in interior Sindh province of Pakistan. The respondents were interviewed by using open ended questionnaire and the themes were extracted from the responses followed by the categorization of the factors for the easy conclusion of the study. Results of the study revealed that there were various diverse factors has influential role in societal acceptance of wind power projects includes financial and non-financial determinants. The study also revealed some potential implications for the policy makers in order to uplift the wind power projects that will ultimately contributes in improving the existing energy crisis level of the country.
Keywords: Wind Power, Project Management, Community Acceptance, Uncertainty, Ambiguity, and Decision-Making.
SECTION 4. INFORMATION TECHNOLOGY AND DIGITAL TRANSFORMATION
Assylbek Gizatov
Senior Research Scientist, Research Institute of Mathematics and Applied Technologies, Atyrau University named after Kh. Dosmukhamedov, Kazakhstan
E-mail: a.gizatov@asu.edu.kz | ORCID: 0009-0009-2557-0767
Nurtas Zhaksybayev
Master’s student in Applied Data Analytics, School of AI and Data Science, Astana IT University, Kazakhstan
E-mail: 255235@astanait.edu.kz | ORCID: 0009-0008-1031-3795
Alibi Jangeldin
M.Sc in Statistics, Senior-Lecturer, Department of Computing and Data Science, Astana IT University, Kazakhstan
ORCID: 0009-0000-0990-4362
Abstract
The rapid growth of educational grants in Kazakhstan has led to wage stagnation and oversaturation in key sectors. This study presents a meta-model combining CatBoost, Explainable Boosting Machine (EBM), and Bayesian-optimized LSTM neural networks to forecast wages, analyze labor market factors, and predict sector demand trends. Findings highlight critical oversupply risks, providing policymakers actionable insights for aligning education with economic needs, fostering sustainable development.
Keywords: Kazakhstan, labor market, wage stagnation, educational grants, machine learning, CatBoost, Explainable Boosting Machine (EBM), Long Short-Term Memory (LSTM), Bayesian optimization, demand forecasting, economic sustainability.
Muhammad Usman Ali
PhD Scholar, Dept of Mechanical Engineering, International Islamic University, Islamabad, Pakistan
E-mail: muhammad.phdem24@iiu.edu.pk | ORCID: 0009-0000-4089-8992
Dr. Javed Ahmad Khan Tipu
Department of Mechanical Engineering, International Islamic University, Islamabad, Pakistan
E-mail: javed.ahmed@iiu.edu.pk
Dr. Eman N. Shaqour
Associate Professor In Architecture Engineering, Department of Architecture Engineering,, Aqaba University of Technology, Aqaba, Jordan
E-mail: imanshaqoor@gmail.com
Faiz Jalil
PhD Scholar, Dept of Mechanical Engineering, International Islamic University, Islamabad, Pakistan
E-mail: faiz.phdem19@iiu.edu.pk
Malik Imran Mujeeb,
Department of Electrical Engineering, Govt. College of Technology, D. I. Khan, Islamabad, Pakistan
E-mail: imranmujeeb26@gmail.com
Usman Aftab
PhD Scholar, Dept of Mechanical Engineering, International Islamic University, Islamabad, Pakistan
E-mail: usman.phdem18@iiu.edu.pk
Abstract
This study presents a comprehensive academic investigation into the role of Building Information Modelling (BIM) in promoting sustainability and operational efficiency within the design and construction of Mechanical, Electrical, and Plumbing (MEP) systems. Adopting a mixed-method research approach, the study integrates a Delphi survey to assess both the extent of BIM adoption and its measurable influence on key sustainability indicators such as material waste, energy efficiency, cost control, and stakeholder collaboration. Empirical findings reveal that the implementation of BIM led to a 54% reduction in material waste and a 17% improvement in energy efficiency, underscoring its environmental benefits. Additionally, BIM usage was associated with a 20% decrease in rework, reflecting stronger interdisciplinary coordination and reduced design errors during project execution. The research also highlights enhanced stakeholder engagement facilitated by BIM, which contributed to improved project delivery and cost-effectiveness. Furthermore, the study introduces a practical, context-specific BIM framework tailored for Pakistan’s construction industry, demonstrating its real-time applicability on active sites. The findings validate BIM as a critical enabler of sustainable construction practices by ensuring timely completion, reducing financial overruns, and optimizing overall project performance. The study concludes with a call for strategic investments in digital infrastructure, procedural improvements, and supportive government policies to address barriers to BIM implementation in developing countries.
Keywords: Building Information Modeling (BIM), Sustainability, MEP Projects, Construction Management, Resource Optimization
Energy ELEMENTS 