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7057 articles
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Design and Fabrication of A Vertical Axis Darrieus Wind Turbine for Household Electricity Generation
Abstract: The Vertical Axis Darrieus Wind Turbine (VAWT) market is growing at 15% annually, valued at $2.1 billion, with rising demand for 10-30 kW models for residential use. This Paper focuses on designing and fabricating a compact, efficient, and low-maintenance VAWT optimized for urban applications and low wind speeds. Addressing gaps in blade design, adaptability, and cost, the turbine features helical blades modeled in SolidWorks for optimal geometry and performance.Polylactic acid …
Published in International Journal of Chemical Separation Technology · Vol. 11, Issue 1, 2025 Read article
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Green Solvent Extraction: Sustainable Approaches for Chemical Separation
Abstract: Solvent extraction techniques have advanced significantly as a result of the increased focus on sustainability and environmental responsibility. Traditional organic solvents, while effective in chemical separation processes, often contribute to environmental pollution and pose health risks. In response, researchers have explored greener alternatives that minimize these adverse effects. Compared to traditional procedures, green solvent extraction offers safer and more environmentally friendly solutions by using bio-based solvents, ionic liquids, and deep …
Published in International Journal of Chemical Separation Technology · Vol. 11, Issue 1, 2025 Read article
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Effects of Two Parameters Foundation on Uniform Elastic Beam Subjected to Concentrated Moving Loads with Clamped-Clamped Boundary Conditions
Abstract: AbstractThis study endeavors to explore the impacts of two foundational parameters on the dynamic response of a uniform elastic beam subjected to a concentrated moving load under clamped-clamped boundary conditions. The investigation employs the generalized Fourier integral transform alongside a series representation of the Dirac-Delta function, a modified version of Struble’s asymptotic method, and integral transformation techniques in tandem with convolution theory to derive solutions to the dynamic problem. The …
Published in International Journal of Mechanics and Design · Vol. 11, Issue 1, 2025 · pp. 15–28 Read article
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Design of Experiments for Vibration Monitoring of Rotating Machinery
Abstract: The valuable resources are rotating technology. In industrial applications, several machines are essential to the effective operation of any system. This article describes the engineering process for developing designs for analyzing variation and the optimization of condition monitoring by the impacts of vibration parameters using Taguchi processes to improve the quality of manufactured items. Crucial spinning equipment is included in the experiment to maximize the vibration frequency reactivity. Using Minitab …
Published in International Journal of Mechanics and Design · Vol. 11, Issue 1, 2025 · pp. 27–41 Read article
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Reimagining Urban Living: An Architect’s Approach to Smart Residential Colonies
Abstract: This paper will explore the concept of a new residential colony model that responds to the significant social, technological, and environmental transformations currently shaping urban environments. As urbanization accelerates and the global population continues to rise, there is an urgent need for housing solutions that address both the challenges of modern living and sustainability. The smart residential colony model will aim to create a harmonious balance between these needs, integrating …
Published in International Journal of Housing and Human Settlement Planning · Vol. 11, Issue 1, 2025 · pp. 37–57 Read article
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Design and Development of an Interactive Robotic Companion with Expressive Personality Traits
Abstract: Abstract This study introduces the development of an interactive robotic companion designed to enhance human-robot interaction (HRI) through mobility, animatronic eye movements, and natural language processing (NLP). Targeting broader accessibility, the prototype aims to provide companionship, especially for elderly individuals and those with physical limitations. The system integrates an Arduino MEGA 2560 microcontroller with key components, including an Echo Dot for NLP and voice recognition, servo-controlled animatronic eyes for lifelike …
Published in International Journal of Mechanics and Design · Vol. 11, Issue 1, 2025 · pp. 1–14 Read article
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Tailoring Electrolytic Deposition of Zn-Ni Alloys for Superior Corrosion Resistance in Harsh Environments
Abstract: Since Zn–Ni alloy coatings are more resistant to corrosion than pure zinc coatings, they are being researched extensively. In this study, Zn–Ni alloy coatings electrolytically deposited from an acidic sulfate bath are investigated. The study looks into how the microstructure, phase composition, and corrosion resistance of the coatings are affected by deposition factors like pH, current density, and electrolyte composition. X-ray diffraction (XRD), potentiodynamic polarization, and scanning electron microscopy (SEM) …
Published in International Journal of Chemical Engineering and Processing · Vol. 11, Issue 1, 2025 Read article
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Decentralized Renewable Energy Systems: A Pathway for Rural Electrification and Energy Equity
Abstract: With a growing trend toward decentralized renewable energy (DRE) systems, the global energy landscape is changing dramatically. These systems have emerged as a viable solution to address two critical global challenges: rural electrification and energy equity. Reliable power is unavailable to millions of people, especially in rural and underdeveloped areas, which impairs economic development, healthcare, education, and general quality of life. Decentralized renewable energy systems offer a sustainable, cost-effective, and …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 11, Issue 1, 2025 Read article
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An Overview of Service Quality Offered by Interurban Transport Companies: Case of Vatican Travel Agency, Yaounde
Abstract: Abstract The problem of customer satisfaction in the interurban transport sector is complex and multifaceted. Addressing these issues will require a combination of investment in infrastructure, improvements in service quality, and the adoption of innovative technologies and business models. This research work is an explorative study design which focuses on the effects of quality services on customer satisfaction. The main objective of this study is to identify and examine the …
Published in International Journal of Town Planning and Management · Vol. 11, Issue 1, 2025 · pp. 37–52 Read article
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Hardware-Centric Analysis and Optimization of Perturb and Observe Techniques for Maximum Power Point Tracking in Solar Photovoltaic Systems
Abstract: Operating conditions like temperature and irradiance fluctuations can significantly reduce the power output of PV systems, presenting a key challenge. Additionally, contemporary MPPT methods demand high computational resources and face difficulties in maintaining optimal PV array output when weather conditions change quickly. The P&O technique, though widely used, falls short in accurate maximum power point tracking amid sudden shifts in solar insolation due to incorrect adjustments in the duty cycle. …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article
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Sustainability Assessment and Resource Optimization for Expansion of Metallurgical and Alloy Production Facilities in Odisha
Abstract: This study presents a comprehensive assessment of sustainability measures and resource optimization strategies for the expansion of metallurgical and alloy production facilities in Odisha, India. The research examines a facility expansion project encompassing 32.63 hectares, analyzing environmental impacts, resource utilization, and socioeconomic implications. The study evaluates key sustainability parameters including air quality management through ESPs and bag filters maintaining PM emissions below 30 mg/Nm³, water resource optimization with a projected …
Published in International Journal of Metallurgy and Alloys · Vol. 11, Issue 1, 2025 · pp. 18–25 Read article
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Modeling the Behavior of Metal Corrosion in Aquatic Environments at Varying Depth
Abstract: The failures of engineering structures situated in the aquatic environment caused by corrosion cannot be over-emphasized. This research work addressed the effects of depths, heavy metals, microbial activities, and physiochemical properties of the water body on the corrosion of submerged metal structures in the water body (the water body is assumed flowing). Model techniques were applied to evaluate the relationship between diffusion and weight loss, as well as velocity and …
Published in International Journal of Metallurgy and Alloys · Vol. 11, Issue 1, 2025 · pp. 1–9 Read article
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Liquid-Liquid Extraction Strategies for the Isolation of Bioactive Heterocyclic Compounds
Abstract: Liquid-liquid extraction (LLE) is a widely employed technique for the isolation of bioactive heterocyclic compounds from natural products, fermentation broths, and synthetic mixtures. The efficiency of LLE depends on several factors, including solvent selection, pH manipulation, salting-out effects, and temperature control. Conventional solvent systems, such as water-organic solvent pairs, are commonly used, while advanced strategies, including ionic liquids (ILs), deep eutectic solvents (DESs), ultrasound-assisted extraction (UAE), and microwave-assisted extraction (MAE), …
Published in International Journal of Chemical Separation Technology · Vol. 11, Issue 1, 2025 Read article
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Selection of Grade of Concrete & Grade of Steel
Abstract: Abstract In structural engineering, understanding the load distribution between steel and concrete is crucialfor ensuring the safety and stability of reinforced concrete structures. The load-bearing capacity ofboth materials, steel and concrete, is dependent on their respective characteristic strengths, whichinclude compressive, tensile, bending, and shear strengths. The behavior of a reinforced concretestructure under various loads is influenced by the interaction between these two materials, wheresteel typically handles tensile and bending stresses, …
Published in International Journal of Structural Engineering and Analysis · Vol. 11, Issue 1, 2025 · pp. 32–37 Read article
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Cross Sectional Area of Column
Abstract: Abstract In structural engineering, columns play a critical role in transferring loads from beams to thefoundation. The load applied on a beam is transmitted to the column, resulting in an upward reactiveforce. This upward pressure necessitates the determination of the column’s cross-sectional area basedon direct stress analysis to ensure that the structure can safely bear the imposed loads. Additionally,an end moment develops at the joint between the beam and the …
Published in International Journal of Structural Engineering and Analysis · Vol. 11, Issue 1, 2025 · pp. 14–20 Read article
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An evaluation of the impact of a structured teaching program on nursing officers' knowledge of stem cell therapy for neurological disorders at a selected hospital in Bangalore
Abstract: Background of the study: A stem cell is an undifferentiated cell in a multicellular organism that can proliferate indefinitely to produce more cells of the same type and can differentiate into various other types of cells. So, stem cell therapy is also called as regenerative medicine, it promotes the repair response of diseased and dysfunctional or injured tissue it has an ability to cure the neurological disorders Hence, the present …
Published in International Journal of Neurological Nursing · Vol. 11, Issue 1, 2025 · pp. 50–57 Read article
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Comparison of Payback Period and Return on Investments for Industrial Scale Solar Photovoltaic Power Generation Plant Considering Net Metering and Gross Metering
Abstract: Photovoltaic power generation plants have become highly popular in recent years, especially in the last decades with the various financial benefits and government incentives provided to domestic, commercial, agricultural, and industrial applications. Net metering and gross metering are the two methods normally employed by distribution companies to register the energy generated by photovoltaic power plant installers. This paper explores both the ideas of metering, for an industrial scale 100-kW rooftop …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article
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Thermodynamic Analysis of Evacuated Tube Solar Collector based Water Heating System: Experimental Approach
Abstract: Energy from the sun is the most profuse and least extracted source of energy ever used in the history of usable resources. Current work aims to harness solar energy for heating water and put it into use by maximizing its effect through evacuated tube solar collector (ETSC). In this work, the effect of low mass flow rates on thermodynamic performance (energy efficiency, exergy efficiency and rate of irreversibility) of an …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article
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Excitation System, Proportional and Integral Controls of a Synchronous Generator for Reducing Adverse Impacts to Power System from Voltage Fluctuations
Abstract: The project analyzes the voltage fluctuations caused by any disturbance in a power system and minimizes the oscillations by controlling the excitement field using a feedback control loop. Adequate numbers of journal papers and literature materials were researched and reviewed to understand the principles of generator excitation and investigate various control systems which can be worked upon to keep the voltage output stabilized. It is known that Automatic Voltage Regulator …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article
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Hardware-Centric Analysis and Optimization of Perturb and Observe Techniques for Maximum Power Point Tracking in Solar Photovoltaic Systems
Abstract: Operating conditions like temperature and irradiance fluctuations can significantly reduce the power output of PV systems, presenting a key challenge. Additionally, contemporary MPPT methods demand high computational resources and face difficulties in maintaining optimal PV array output when weather conditions change quickly. The P&O technique, though widely used, falls short in accurate maximum power point tracking amid sudden shifts in solar insolation due to incorrect adjustments in the duty cycle. …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article