Engineering Development Research Articles

Building Information Modeling–Life Cycle Assessment: A Novel Technology for Rapid Calculation and Analysis System for Life Cycle Carbon Emissions of Bridges

With the rapid development of bridge construction, environmental concerns have become increasingly prominent. Low-carbon, green, and sustainable bridge engineering has emerged as an inevitable trend. A comprehensive carbon emission calculation system is key to achieving low-carbon bridges. This study proposes a rapid calculation and analysis system for bridge carbon emissions (Building Information Modeling–Life Cycle Assessment, BIM-LCA). This system, using the bridge information model as a carrier, calculates and manages data on material consumption, machinery, transportation, and energy throughout the bridge’s life cycle. It then calculates the carbon emissions for each stage. This system simplifies the complex and cumbersome data collection and analysis processes found in traditional methods while also making the carbon emissions across the full bridge life cycle more accessible and visible. Being applicable to all types of bridges, this system can provide insights and a basis for decision-making in the early design stages and during construction and operation to support carbon reduction. Ultimately, it promotes low-carbon, environmentally friendly, and sustainable bridge engineering development.

Innovative surface engineering of sustainable polymers: Toward green and high-performance materials

The development of sustainable polymers is critical to the progression of greener manufacturing processes, especially for the additive manufacturing technologies of fused deposition modeling (FDM). The study aims to explore potential application surface engineering techniques that enhance the performance of these sustainable polymers within the context of FDM. Various surface modification methods, such as plasma treatment, chemical etching, and UV irradiation, were utilized on biodegradable and recycled polymers, with the treatment process conducted under controlled conditions. Mechanical testing was done using a Tinius Olsen universal testing machine, with surface morphology analyzed through scanning electron microscopy. The outcome indicated that the tensile strength of polylactic acid improved by 15% with plasma treatment, while the thermal stability of recycled polyethylene terephthalate improved by 12% with chemical etching. Surface engineering developments on various techniques will be reviewed, particularly in optimizing them within FDM processes for different types of polymers. Different surface modifications will be compared here, analyzing aspects such as adhesion, endurance, and more overall performance. This comparison provides a fundamental outlook into the relationship between surface treatment and polymer performance, paving the way for optimization of FDM processes in sustaining material applications. These findings serve as further guidance toward making additive manufacturing much more sustainable and efficient through advanced surface engineering. The numerical improvement of material properties observed in the study will aid in further endeavors towards achieving sustainability and efficiency in additive manufacturing.

Conjugate heat transfer performance of a ceramic matrix composite plate considering the influences of the mesoscopic properties of yarns

Ceramic matrix composites (CMCs), as a type of material with low density and excellent temperature resistance, are highly conducive to the lightweight and efficient development of future aerospace engines. It is essential to investigate the anisotropic thermal properties of CMCs when applying them to high-temperature components of aerospace engines. This study examined three types of film holes formed in different components of CMCs and compared the overall cooling effectiveness. The influence of the blowing ratio on the overall cooling effectiveness of composite material plates was investigated. The results showed that Type I exhibited better overall cooling effectiveness distribution than Types II and III. With the increase in blowing ratio, the overall cooling effectiveness of the plate was improved. The overall cooling effectiveness at M = 2.0 was 19.67 %, 16.72 %, and 12.1 % higher than those at M = 0.5, 1.0, and 1.5, respectively. The study also investigated the influence of the principal thermal conductivity and volume fraction of yarn on overall cooling effectiveness. An increase in the principal thermal conductivity resulted in an initial deterioration followed by improvement in the cooling effect in the upstream region, while increasing the yarn volume fraction enhanced the cooling effect of the plate.

Payoff-driven migration promotes the evolution of trust in networked populations

Establishing and maintaining trustworthy behaviors in large populations of self-interested individuals is a significant problem which received extensive attentions from research fields such as evolutionary biology, economics, sociology and engineering. As a well-known model that captures social trust dilemmas, the N-player trust game is adopted to investigate the evolution of trust in groups consisting of investors and trustees. In addition, to model real scenarios in dynamic environments, we introduce a novel migration mechanism, called adaptive environment-benefit-driven migration, which considers the influence of individuals’ payoffs on migration. Through theoretical analysis and Monte Carlo simulations, we demonstrate the effectiveness of the migration mechanism on facilitating trust behaviors in the framework of evolutionary game theory. We find that the population density plays a crucial role in establishing trust. Simulation results reveal that trust can be fostered in a dynamic environment influenced by individual migration with the medium vacancy rate. This work significantly contributes to the understanding of mutual trust behaviors in networked social systems from a more realistic perspective.

Bioconvection flow of Carreau nanomaterial invoking Soret and Dufour impacts

Background and objectiveThermal transport enhancement through nanomaterial flow has gained much attention of the investigators recently. Such attention is for applications in engineering, petroleum industries, geothermal engineering and pharmaceutical developments such as X-ray imaging, welding process, semiconductor material production, thermal storage system, electric cooling devices, drug delivery, magma solidification etc. In view of such interest here we analyze the bioconvective stretched flow of Carreau nanoliquid. Thermal, microorganism and mass convective constraints are considered. Gyrotactic microorganisms within presence of chemical reaction is considered. Variable thermal conductivity is considered. Dufour and Soret features are under consideration. Thermophoresis diffusion and random movement features are considered. Energy relation comprises heat generation and radiation. MethodologyNonlinear dimensionless expressions are developed by employing suitable transformations. Numerical computations are obtained by implementation of Newton built in-shooting technique. ResultsPerformance of liquid flow, concentration, microorganism field, and thermal field is studied. Numerical values of quantities of engineering performance via influential parameters are explored. Larger Weissenberg number yield velocity increase. Reduction in velocity through bioconvection Rayleigh number is witnessed. Concentration and thermal field through solutal thermal Biot numbers have similar effect. An increment in thermal distribution and Nusselt number for Dufour number is detected. Increasing values of Soret number and chemical reaction correspond to decay in concentration. An augmentation in thermal transfer rate and temperature through radiation is noticed. An increment in density number against Peclet and bioconvection Lewis numbers is noticed.

Development of engineering coating based on alumina nanoparticles incorporated into a Ni-Co alloy matrix: Effect of current density and alumina bath loading on microstructure and electrochemical corrosion behavior

The construction of electrodeposited coatings (EDCs) with enhanced microstructural characteristics and superior electrochemical corrosion behavior is of enduring concern for the industrial applications. In this study, alumina (Al2O3) nanoparticles were incorporated into a Ni-Co alloy matrix to improve its morphological and electrochemical behaviors. The primary objective was to assess the impact of varying electrodeposition current densities (20, 40, and 60 mA/m2) and different contents of alumina (3, 5, and 7 g/L) on the properties of a ternary Ni-Co-Al2O3 composite coating. EDX analysis was employed to investigate the effects of deposition current density and alumina bath loading on cobalt/nickel (Co/Ni) ratio and alumina content in the coatings. The results revealed that both the Co/Ni ratio and alumina content in the coatings increased with increasing current density and bath loading, but only up to certain thresholds (40 mA/m2 and 5 g/L). XRD analysis was conducted to assess the phase composition, crystal structure, crystallite size values, and preferred orientation of the fabricated EDCs. The mechanical properties of the deposited coatings were also evaluated using Vickers microhardness testing. The electrochemical corrosion behavior of the as-prepared EDCs was assessed using potentiodynamic polarization (Tafel) and electrochemical impedance spectroscopy (EIS) techniques. The 40 mA/cm2 and 5 g/L samples exhibited lower corrosion current density (jcorr), higher charge transfer resistance (Rct), and lower double layer capacitance (CPEdl) values, suggesting that the increased cobalt and alumina particles in the coatings improved the corrosion resistance. Consequently, the optimal current density and alumina bath content for achieving the most favorable properties were found to be 40 mA/m2 and 5 g/L, respectively.

Research on Modified Thermal Barrier Coatings Against CMAS Corrosion Driven by Mechanism–Data Hybrid Model

With the development of high-efficiency gas turbine engines and increasing inlet temperatures, the performance of thermal barrier coatings (TBCs) for hot-section components has been more severely challenged. The doping of multi-element rare earth elements significantly improves the thermodynamic properties and chemical compatibility of thermal barrier coatings so that the application performance of coatings in high-temperature environments is enhanced considerably. In this work, the doped coatings prepared by REYSZ (RE = La, Sm, Nd) were investigated and characterized in terms of crystal structure, elastic properties, and thermal–mechanical properties based on the first-principles approach, combined with various empirical and semi-empirical formulations, and a predictive model for resistance to CMAS corrosion based on machine learning approaches. The results showed that the tetragonal phase REYSZ material was mechanically stable, had a large strain damage tolerance, and was not easy to fracture under applied loads and thermal shocks. In terms of CMAS corrosion resistance, the NdYSZ interfacial model had a lower surface energy (3.130 J/m2) and Griffith fracture energy (6.934 J/m2) compared with the conventional YSZ model, and Nd2O3 had the potential to improve the CMAS corrosion resistance of zirconia-based material for thermal barrier coatings. By evaluating the machine learning prediction models, the regression coefficients of the two algorithms were 0.9627 and 0.9740, and both these two prediction models showed high prediction accuracy and strong robustness. Ultimately, this work presented a novel mechanism–data hybrid method, which would facilitate the efficient development of TBC new materials for anti-CMAS corrosion.

ASEAN geology bibliometric analysis: A way forward for sustainable development

Geology has facilitated societal growth and development. This study analysed the latest development in geology research within 10 ASEAN countries. The VOSviewer software was utilised to examine the distribution of bibliometric maps. The data was acquired from the Scopus database through a data filtering process using the “geology” terms contained in the title, keyword, and abstract. A total of 2,319 articles published between 2018 and 2022 were chosen to capture the prevailing latest circumstances. The findings showed a notable change in geology study throughout the five-year duration, with the number of articles published decreasing from 407 in 2018 to 265 in 2022. The VOSviewer association strength method further revealed the five terms with the highest frequency occurrences, namely geology (794 occurrences), structural geology (259 occurrences), engineering geology (278 occurrences), geophysics (240 occurrences), and remote sensing (214 occurrences). The terms were further categorised into seven distinct clusters, consisting of geology, structural geology, seismology, economic geology, deposits, engineering geology, and volcanoes. Both Indonesia and Malaysia were the most significant countries associated with the geology terms. The emerging latest terms adopted were gas engineering, environmental technology, tourism, machine learning, and sustainable development. This study serves as a valuable point of reference and a source of contemplation for researchers seeking to explore additional research areas, particularly in the field of geology within the ASEAN territory.

Adhesion behavior and microscopic mechanism of epoxy asphalt-RAP aggregate interface

The utilization of thermosetting epoxy asphalt shows promise in achieving the objective of efficient recycling of reclaimed asphalt pavement (RAP) and promoting the sustainable development of pavement engineering. However, the adhesion behavior and microscopic mechanism of the multi-phase complex interface of epoxy asphalt-RAP aggregate is not clear, which is not conducive to the application of epoxy asphalt in RAP. In this paper, epoxy asphalt-aged asphalt (EA)-aggregate specimens were prepared to simulate the epoxy asphalt-RAP aggregate interface. The effects of different factors on adhesion performance indicators such as surface performance, shear performance and dynamic mechanical performance of the interface were evaluated. The grey relation analysis was used to clarify the sensitivity of interface adhesion performance indicators to different factors. Finally, the microscopic mechanism of interface adhesion behavior was revealed. The results showed that the increase in the epoxy component content and the degree of blending (DOB) of the EA improved the surface characteristics, shear performance, and dynamic mechanical performance of the interface, contributing to interface tends to adhesion failure, which was contrary to the aging effect of asphalt and water immersion. Noteworthy, adding the epoxy component exacerbated the gradient distribution of the EA with partial blending, and the enhancement effect on the interface deformability was significantly weakened. Especially for the range of shear strain growth rate of the EA-30P-granite interface decreased to 15.21 %∼27.61 %. Besides, the adhesion performance of the interface with different aggregates showed a similar pattern. The surface characteristics and dynamic mechanical performance of the interface were more sensitive to aggregate type and DOB, while the top-ranking influencing factors were epoxy component content and DOB for interface shear performance. Increasing the epoxy component content and DOB contributed to the integrity of the microstructural morphology of the epoxy component, but the aging of asphalt had the opposite pattern.

Team Composition in Software Engineering Development Phases: A systematic literature review

Team Composition in Software Engineering Development Phases: A systematic literature review

A massively parallel reporter assay library to screen short synthetic promoters in mammalian cells

Cellular responses to stimuli underpin discoveries in drug development, synthetic biology, and general life sciences. We introduce a library comprising 6144 synthetic promoters, each shorter than 250 bp, designed as transcriptional readouts of cellular stimulus responses in massively parallel reporter assay format. This library facilitates precise detection and amplification of transcriptional activity from our promoters, enabling the systematic development of tunable reporters with dynamic ranges of 50−100 fold. Our library proved functional in numerous cell lines and responsive to a variety of stimuli, including metabolites, mitogens, toxins, and pharmaceutical agents, generating robust and scalable reporters effective in screening assays, biomarkers, and synthetic circuits attuned to endogenous cellular activities. Particularly valuable in therapeutic development, our library excels in capturing candidate reporters to signals mediated by drug targets, a feature we illustrate across nine diverse G-protein coupled receptors (GPCRs), critical targets in drug development. We detail how this tool isolates and defines discrete signaling pathways associated with specific GPCRs, elucidating their transcriptional signatures. With its ease of implementation, broad utility, publicly available data, and comprehensive documentation, our library will be beneficial in synthetic biology, cellular engineering, ligand exploration, and drug development.

Research on the Construction Path of New Engineering + Curriculum Ideology and Politics

With the rapid development of science and technology and the transformation and upgrading of industry, new engineering construction has become the important direction of higher engineering education reform in our country. This research focuses on the “new engineering + curriculum ideological and political new form course construction path,” in order to meet the new requirements of talent training put forward by the development of new engineering. This paper analyzes the educational value and current situation of curriculum ideology and politics under the background of new engineering, and improves the ability of curriculum ideology and politics from the perspective of strengthening the teacher training system; optimizing curriculum ideological and political design, skillfully integrating into the ideological and political elements; and strengthening the cooperation between schools, enterprises, and family associations to enrich curriculum ideological and political resources. To build a collaborative education mechanism and form an all-round education pattern, the four aspects of the new engineering + curriculum ideological and political of the new form course construction path have been preliminarily explored, hoping to provide some references and guidance.

Analysis of key factors for better results during continuous improvement events within engineering environment

There are few in-depth studies in the Management literature related to the development of activities implemented during the Kaizen week. This work contains a theoretical basis related to the engineering and product development environments as well as to the Kaizen tool and the Lean tool, which seek to reduce waste and implement continuous improvement. Through a case study in an aviation transportation industry, some Kaizens are analyzed in the engineering environment. With the analysis of data collected in Kaizen Weeks, a dissertative study uses three sources of data collection, between them, structured interview, and demonstrates the theory presented, proving the existence of impacting factors that influence the Kaizen week. Using percentages and multivariate analysis, it highlights the factors that have the biggest impact and the necessary attention to be given to them.

Technologies in Marine Antifouling and Anti-Corrosion Coatings: A Comprehensive Review

With the rapid development of marine engineering, effective antifouling and anti-corrosion technologies are essential for ensuring the safety and longevity of marine facilities. This review synthesizes current research on various coating technologies designed to combat marine biological fouling and corrosion. It analyzes the causes of marine biological fouling and corrosion, discusses their potential impacts on the safety of ships and marine structures, and emphasizes the need for effective protective systems. The review covers current antifouling coating technologies, including the preparation of low-surface-energy coatings, conductive coatings, biomimetic coatings, polysiloxane coatings, polyurea coatings, epoxy coatings, polyurethane coatings, and high-entropy alloy coatings. Anti-corrosion coatings are also discussed, with a focus on the characteristics of epoxy, polyurethane, and polyurea coatings, as well as metal-based coatings, alongside their corrosion resistance in marine environments. Based on existing research, the review summarizes ongoing challenges in marine antifouling and anti-corrosion coating technologies, and offers perspectives on future research directions and technological developments.

The Sound Absorption Performance of Laser-Sintered Composite Biomimetic Wood Porous Structures

This study investigates the development of biomimetic sound-absorbing components through laser sintering technology, drawing inspiration from wood’s natural porous structure. Using a pine wood powder/phenolic resin composite, various specimens were fabricated with different structural configurations (solid, fully porous, and varying straight-pore ratios) and cavity thicknesses. Sound absorption performance was evaluated using the impedance tube transfer function method. The effect of different composite structures, placement orientations, and cavity thicknesses on sound absorption performance was evaluated. The results demonstrate that solid laser-sintered samples exhibit inherent sound absorption properties due to microscopic pores, with absorption coefficients exceeding 0.234. The biomimetic wood-like structure, featuring multi-scale porosity at both microscopic and mesoscopic levels, shows enhanced broadband sound absorption, particularly in mid-high frequencies, with characteristic double-peak absorption curves. The study reveals that absorption performance can be optimized by adjusting structural parameters and thickness, enabling targeted frequency-specific sound absorption. This research establishes the feasibility of creating multi-frequency sound-absorbing materials using laser-sintered biomimetic wood structures, providing a foundation for future applications and development in acoustic engineering.

Thermo-responsive microparticle swimmer as a remote tool for cell delivery in tissue engineering

Developing biocompatible and flexible cell manipulation tools is crucial for effective cell delivery in tissue engineering. Herein, thermo-responsive microparticle swimmers, composed of an alginate core and a rough gelatin surface, are developed as a tool for remote cell manipulation and the construction of patterned cell models. The microparticles are fabricated using a novel bio-friendly surface assembly strategy, which leverages morphology-induced gelatin adsorption combined with temperature-cycling crosslinking to deposit multiple gelatin layers onto microfluidic-derived rough microparticles. Gelatin molecules can adsorb onto the rough surface at 25 °C and become cross-linked at 4 °C to form a stable coating layer while preserving the coarse morphology for additional assembly cycles. The gelatin layers remain intact at room temperature for cell loading and transport, but rapidly dissipate at 37 °C, enabling cell release. Moreover, complex manipulations of living cell populations, such as remote tweezing, can be achieved by the introduction of magneto-responsive moieties. These versatile microparticles provide an efficient tool for the in vitro construction of flexible and dynamic patterned cell models, with promising applications in tissue engineering, drug screening, and organoid development.

CHALLENGES AND OPPORTUNITIES FOR THE DEVELOPMENT OF LOGISTICS HUBS IN UKRAINE

Logistics, as a key element of modern supply chains, is increasingly becoming the subject of deep engineering research and development. The construction of logistics complexes in today's world is a critical aspect for the development and functioning of global economic systems, as it allows optimizing supply chains and organizing logistics processes to meet the high standards of consumers and business partners. Logistics complexes play a crucial role in global trade by ensuring the fast and efficient delivery of goods. The growth of e-commerce volumes enhances their significance, requiring more space for the storage and processing of goods. These complexes are strategically important for enterprises as they contribute to efficiency improvement, delivery time reduction, and cost optimization. Logistic infrastructures provide flexibility to respond to changing market conditions and support competitiveness at the international level. Accordingly, the construction of logistics complexes plays a strategic role in economic development and supports global business. Objective: The work aims to assess, analyze, and justify organizational-technical factors in optimizing the construction of logistics complexes. Research Object: Construction of logistics complexes as part of modern supply chains and their role in global economic systems. Research Subject: Organizational-technical factors influencing the process of construction of logistics complexes, as well as methods for their optimization to enhance the efficiency and competitiveness of logistic systems. Presentation of Material: To achieve the research objective, the following tasks were performed: analyzed the current state of warehouse logistics in Ukraine and the role of logistic hubs; analyzed the impact of innovative and sustainable materials on the construction of logistics complexes; studied the provision of flexibility and adaptability of logistics complexes to changing market conditions; analyzed resource utilization during construction. Research Results: The research results focus on improving organizational and technological aspects of the construction of logistics complexes through effective management of construction processes, implementation of innovative technologies, and optimization of resource utilization. Such measures contribute to increased productivity and competitiveness of logistic systems, as well as sustainable development and enhanced efficiency of the supply chain.

Developing a Curriculum for Practical Skills-Based Pedagogy in Engineering Education: A Skills-Driven Teaching and Learning Approach for Job Transition Pathways Applicable in Engineering Training and Development for a University of Technology

The onset of the COVID-19 pandemic has necessitated a shift in focus for graduate engineering students, demanding their swift integration into the workforce. The Engineering Council of South Africa now stipulates that institutions must cultivate specific graduate attributes, particularly in the face of rapid economic and social transformations. This mandate prompts universities to equip engineers with the skills needed to seamlessly adapt to scarce skill positions and emerging roles within diverse disciplines dictated by industry demands. The evolving landscape is shaped by emerging technologies impacting production, manufacturing, and service sectors. Consequently, engineering graduates must acquire skills that facilitate a smooth transition into roles that align with their expertise. The imperative for universities is to fulfill the core mission of engineering education: fostering professionals capable of developing future technology to address upcoming challenges and produce technologists adept at solving present issues using current technology. This study employs a qualitative research method to explain and explore the training of engineers, ensuring that graduates possess the requisite attributes for a successful transition into new occupational roles aligned with industry needs. The focus of the research centers on analyzing the teaching interventions implemented in Industrial Engineering undergraduate programs at a university of technology.

Dynamic analysis in polar exploration: Fluid-structure interaction modeling of projectile colliding with floating ice during water entry

In polar resource exploration, the interaction between polar detectors and floating ice, as well as their water entry mechanisms, are crucial for ensuring effective detector operation and data collection. This study developed a fluid-structure interaction (FSI) model to simulate the water entry of the projectile in a multidegree motion state upon collision with the floating ice, and the numerical method was validated through experiments. This study analyzes the mechanisms of cavity evolution and the laws of cavity pinch-off. This analysis further explores the motion states and dynamic characteristics under the interaction between the projectile and the floating ice. Additionally, this study also considers the influence of structural parameters of the floating ice, including thickness (Lt), width (Lw), and collision position (Sd), on the water entry process. The study reveals that increasing the submergence depth of the floating ice enhances the stability between the floating ice and water, and can mitigate flow separation phenomena generated by passive motion under inertial effects. Variations in the floating ice thickness significantly affect the cavity evolution and the projectile's underwater motion state. Conversely, variations in the floating ice width notably affect the liquid level disturbances, the development of splash crowns, and the evolution of passive water entry cavities. In specific multidegree motion states, various collision positions do not alter the evolution form of water entry cavities, yet the variation in collision positions notably affects floating ice displacement. As the collision position shifts from the center to the side edge of the floating ice, both the hydrodynamic forces on the projectile and the stress on the floating ice gradually decrease, with the decrease in hydrodynamic forces being the most significant, reaching up to 58%. This study is important for enhancing multi-body fluid-structure interaction algorithms and advancing polar exploration engineering development.

Global processes of solid biofuel production: Trends and prospects of its development in Ukraine

The article highlights current global energy problems concerning the consumption of fossil fuels, their negative consequences, and trends in the growth of the consumption of renewable energy resources. It has been established that one of the most promising alternative energy sources in the world and Europe is solid biomass of plant origin, an environmentally friendly and rapidly renewable energy resource. An intensive process of growth in production and consumption of fuel briquettes and pellets, which in 2014–2020 made up averagely 27.2 %, can be observed in Ukraine. The constructed trend line of fuel briquettes and pellets production and consumption in Ukraine from 2014 to 2025 has a high level of reliability with a 0.92 coefficient of determination. Based on the analysis of the consumption of fuel briquettes and pellets in the regions of Ukraine, they were divided into low, medium, high, and very high levels of consumption. The developed miscanthus cultivation technology ensures: 20–25 t/ha dry biomass yield; 25–28 t/ha solid fuel yield; 500–520 GJ/ha solid fuel energy output; 160–190 % production profitability. The developed switchgrass growing technology provides: 15–20 t/ha dry biomass yield; 8.5–12.0 t/ha solid fuel yield; 150–220 GJ/ha solid fuel energy output; 160–230 % production profitability. The further development of solid biofuel production will ensure the expansion of technologies for the combined generation of electrical and thermal energy, which will be obtained due to the cheap biological resources processing. Development of domestic bioenergy engineering can be considered as an additional socio-economic effect.