This study presents a comprehensive approach combining experimental testing with finite element simulation to investigate failure mechanisms in high-stress components subjected to complex loading scenarios. The close alignment between experimental observations and simulation results validates the effectiveness of the computational framework in predicting component behavior and failure progression. The dual methodology enables precise identification of high-stress zones, estimation of component life, and deeper insight into damage evolution. .

This study evaluates the feasibility and performance of using HDPE granules and e-waste as partial replacements for fine and coarse aggregates in concrete. Results indicate that incorporating 12.5% HDPE and 12% e-waste yields a 28-day compressive strength of 26.7 N/mm², satisfying the IS 456:2000 criteria for M25-grade concrete. However, further increases in replacement ratios lead to diminished strength. .

This study investigates the feasibility of using coal mine overburden (CMOB) as a sustainable alternative to natural sand in M30 grade concrete. Various concrete mixtures were prepared with CMOB replacing natural sand at 0%, 20%, 40%, 60%, 80%, and 100% levels. The workability, compressive strength, split tensile strength, modulus of elasticity, ultrasonic pulse velocity, and impact resistance of the concrete were evaluated after 28 days of curing. Results indicated that concrete with up to 60% CMOB replacement exhibited improved mechanical properties, including a peak compressive strength of 50.4 MPa, higher modulus of elasticity, and enhanced ultrasonic pulse velocity, compared to conventional concrete. .

This study presents the development, validation, and sensitivity analysis of a simulation model for four-stroke spark ignition engines, using experimental data from eight Mercedes-Benz engines from the 1969 model year. The model accurately replicates engine power and torque across a wide range of speeds (1,000 to 6,000 RPM), with relative errors within ±6%, demonstrating its reliability. Sensitivity analyses reveal the critical influence of combustion duration, spark timing, and discharge coefficients on engine performance, emphasizing the need for precise parameter calibration. The validated model serves as a powerful tool for analyzing engine behaviour, optimizing performance, and supporting emission reduction strategies..

This study explores the feasibility and performance of sustainable concrete produced using recycled coarse aggregates (RCA) and rice husk ash (RHA) as partial replacements for natural aggregates and cement, respectively. Demolished concrete waste from Gurugram was processed into RCA, while RHA was prepared from locally sourced rice husk. Concrete mixes were formulated by replacing cement with RHA at 5%, 10%, 15%, and 20% levels. Physical characterization confirmed conformity with Indian Standards. .

This study presents a structured and environmentally sustainable methodology to investigate the effects of PET plastic bottle strips on the compaction behaviour of locally sourced clayey/silty soils. Aimed at contributing to both geotechnical engineering and sustainable waste management, the methodology integrates controlled laboratory experiments adhering to IS 2720 (Part 7) and ASTM D698 standards. Soil samples were blended with uniformly shredded PET strips (5 mm × 50 mm) at varying concentrations (0% to 3%) and subjected to Standard Proctor Tests to analyze changes in Maximum Dry Density (MDD) and Optimum Moisture Content (OMC)..

The widespread adoption and scalability of electric vehicle (EV) infrastructure depend critically on the design of charging networks that are accessible, efficient, and integrated within broader urban planning and energy management frameworks. This study underscores the necessity of aligning EV infrastructure development with smart city initiatives, environmental objectives, and equitable mobility strategies. Integration with smart grids enables real-time energy optimization, facilitates renewable energy use, and minimizes peak demand impacts. Key design principles include user-centric planning, multimodal transport integration, and inclusive access for marginalized communities..

This study establishes a significant link between road surface conditions and accident severity in India. While dry surfaces generally provide optimal friction, they are paradoxically associated with higher accident severity due to increased incidences of over-speeding. Conversely, wet and waterlogged roads, especially prevalent during monsoon months, lead to a marked increase in accident frequency and fatalities, exposing the vulnerability of Indian road infrastructure to seasonal variations. In rural regions, muddy and gravelly surfaces were found to notably contribute to rollover and off-road incidents, primarily affecting two-wheelers and heavy vehicles. .

This study evaluates the adoption and effectiveness of lean construction practices in improving project delivery within Faridabad District, Delhi NCR. Utilizing a structured, data-driven methodology, the research gathered insights from key stakeholders Property Surveyors, Clients, Civil Engineers, and Project Managers to assess the perception, prioritization, and implementation of lean principles. Results highlight widespread recognition of lean’s benefits, particularly in reducing waste, promoting sustainability, and enhancing workflow. .

This study presents a holistic framework for the design and performance evaluation of flexible pavements, emphasizing the critical integration of material characterization, laboratory testing, empirical design methods, and layered elastic analysis. The research underscores the significance of selecting high-quality construction materials, rigorously tested using standardized methods such as aggregate crushing, Los Angeles abrasion, and bituminous binder evaluations. The Marshall Mix Design procedure facilitated optimal aggregate-binder combinations, ensuring both durability and workability..

This study investigates intersection-related traffic accidents across ten major locations in Delhi, offering a multifaceted analysis of crash characteristics, contributing factors, and intervention opportunities. From 2014 to 2019, crash frequencies remained relatively stable, yet peak-hour spikes at 08:00 and 17:00 highlight the enduring danger of rush-hour traffic. The distribution of crashes—uniform across all intersections—signals a broader systemic issue rather than localized hotspots. Rainy weather was identified as the most hazardous condition, significantly increasing crash frequency and severity due to poor visibility and compromised road traction. Spatial mapping revealed a diagonal corridor of high-risk intersections, suggesting the need for targeted infrastructural enhancements..

Youth Justice refers to the legal and social frameworks established to address the behavior of young individuals involved in criminal activities. It encompasses a comprehensive approach that includes intervention, prevention, rehabilitation, and the legal procedures governing the treatment of juvenile offenders. The primary focus of youth justice is not merely punitive but rehabilitative, aiming to transform the lives of young offenders by addressing the underlying causes of delinquent behavior such as poverty, lack of education, and family dysfunction. .

This study investigated the performance, durability, environmental impact, and practical implementation of fly ash concrete through a blend of laboratory experiments, literature analysis (2007–2025), Indian Standard-based testing, and over 20 real-world case studies. Fly ash was found to enhance workability and long-term strength due to its pozzolanic properties. Durability metrics, including resistance to sulfate attack and reduced permeability, significantly improved. Adherence to IS 10262:2019, IS 456:2000, and IS 3812:2013 confirmed its technical suitability for Indian construction practices. Replacing 30% of cement with fly ash reduced CO₂ emissions by approximately 27% and resulted in 15–20% cost savings. Case studies from national and international projects validated its success across diverse environmental conditions. .

The present study offers a comprehensive analysis of urban traffic dynamics in New Delhi using the “New Delhi Traffic Probe and Analytics 2024” dataset. By leveraging time-series traffic data at 15-minute intervals across multiple road segments, the research uncovers critical insights into congestion patterns, travel time variability, and the influence of environmental and infrastructural factors on traffic flow. Employing linear regression, polynomial modelling, and multivariate analysis, the study identifies major congestion indicators such as decreased vehicle speeds during peak hours, increased vehicle counts, and prolonged travel times..

This study presents a comprehensive analysis of pavement deterioration by integrating experimental observation data encompassing traffic metrics, environmental conditions, and pavement performance indicators. The research constructs a unified dataset to investigate the influence of key predictors on the Pavement Condition Index (PCI). A multiple regression model was applied, identifying six statistically significant variables—Average Daily Traffic, % Heavy Vehicles, Peak Hour Volume, Traffic Flow Variability, Total Precipitation, and Freeze-Thaw Cycles—with p-values below 0.05. Notably, the negative coefficient for Average Daily Traffic (–0.0012) highlights the detrimental effect of increased vehicular load on pavement quality. .

Quantum entanglement has emerged as a promising candidate for ensuring future cybersecurity schemes with the constantly increasing risk of quantum computer attacks on conventional encryption approaches. To have secure communication, this work focuses on the use of E-BQKD protocols, specifically on BB84 and E91. IBM Qiskit simulations demonstrate the generation of entangled qubits, the exchange of keys, and the application of Quantum Bit Error Rate (QBER) for intrusion detection. The conclusion is that the eavesdrop detecting set based on the entanglement of quantum bits for these qubit states can work efficiently, which further demonstrates the practice of quantum cryptography in information security..