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890 articles for “activity”
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PORTABLE SOLAR WATER HEATER
Abstract: This project explores the design of a portable solar water heater optimized for high-efficiency heat transfer in off-grid settings. The system utilizes the superior thermal conductivity of copper turnings, which serve as a heat exchanger to capture direct solar radiation. Using a closed-loop mechanism, a small pump circulates water from a storage tank through these copper coils, where it is rapidly heated before returning to the reservoir. This active circulation …
Published in International Journal of Mechanics and Design · Vol. 12, Issue 1, 2026 · pp. 19–25 Read article
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Catalytic Applications of Carbon Nanodots
Abstract: Carbon nanodots (CNDs) owing to their hydrophilicity and multifunctionality and with ultrasmall size exhibit metal-like properties resulting in astounding catalytic performance. These nanostructures, typically less than 10 nm in diameter, possess unique physicochemical and electronic characteristics including tunable photoluminescence, high surface-to-volume ratio, abundant surface functional groups, and excellent electron transfer capabilities. Such properties have driven extensive global research into their application in heterogeneous and homogeneous catalysis. Recent advances in synthesis …
Published in International Journal of Composite Materials and Matrices · Vol. 12, Issue 1, 2026 · pp. 9–14 Read article
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The Biomechanical Impact of Slipper Sole Compliance on Lumbar Spine Load: A Quantitative Analysis of Indoor Footwear Ergonomics
Abstract: Abstract The global shift toward remote work has significantly increased the duration of indoor footwear usage, yet the ergonomic standards for slippers remain critically under-researched compared to athletic or industrial footwear. While "high-compliance" or soft slippers are traditionally marketed for immediate comfort, excessive mechanical softness may lead to foot instability, altered gait kinetics, and subsequent compensatory stress on the lumbar spine. This study aims to quantify the correlation between varying …
Published in International Journal of Mechanics and Design · Vol. 12, Issue 1, 2026 · pp. 30–35 Read article
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An Energy-Efficient CMOS Analog Front-End for Wearable Biomedical Monitoring Applications
Abstract: Because wearable biomedical monitoring technologies allow for continuous, real-time, and remote measurement of physiological parameters, they are quickly becoming a key component of contemporary healthcare. These systems place stringent demands on the analog front-end (AFE), which must accurately acquire and condition extremely low-amplitude biopotential signals such as electrocardiogram (ECG), electroencephalogram (EEG), and electromyogram (EMG) while operating under severe power and size constraints. This paper presents the design and simulation of …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 12, Issue 1, 2026 · pp. 1–10 Read article
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Performance Evaluation of EV Charging Station with Bidirectional Power Flow for Grid Support Applications
Abstract: The swift increase in the number of electric vehicles (EVs) brings considerable prospects and difficulties for contemporary power distribution networks. This paper presents the performance evaluation of a 20 kW bidirectional EV charging station designed to facilitate both Grid-to-Vehicle (G2V) and Vehicle-to-Grid (V2G) power flow for enhanced smart grid support applications. The proposed topology integrates an AC/DC bidirectional converter interfaced to the 415 V, 50 Hz three-phase utility grid through …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 12, Issue 1, 2026 · pp. 21–28 Read article
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IoT-Based Fault Detection in Distribution Lines
Abstract: Quickly detecting and pinpointing failures in electrical distribution lines are important for shortening the duration of service interruption, reducing maintenance costs and increasing safety. In this work, we propose a realistic architecture for an Internet-of-Things (IoT)-enabled fault detection system designed for distribution networks. In order to continually assess electrical characteristics including voltage, current, frequency, temperature, and line status, the suggested architecture combines inexpensive, dispersed sensor nodes placed along feeders and …
Published in International Journal of Electrical Power System and Technology · Vol. 12, Issue 1, 2026 · pp. 1–6 Read article
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An Overview on Harmonic Intelligence: BridgingMicrowave Sensing and AI-Driven IoT for Autonomous Decision-Making
Abstract: As the Internet of Things (IoT) ecosystem expands into complex industrial and urban environments, the demand for high-fidelity data acquisition and near-instantaneous edge processing has reached a critical juncture. Traditional optical and infrared sensors often falter under adverse conditions, such as dense smoke, occlusions, or low-light environments. This paper explores the transformative potential of microwave signals—leveraging their unique ability to penetrate non-metallic materials and operate independently of ambient lighting—as the …
Published in International Journal of Microwave Engineering and Technology · Vol. 12, Issue 1, 2026 · pp. 1–8 Read article
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Next-Generation IoT-Based Air & Noise Pollution Monitoring System Using ESP32-S3
Abstract: Air and noise pollution have become serious environmental problems in modern urban areas due to rapid industrialization, increasing traffic, and population growth. Continuous monitoring of pollution levels is important to protect public health and maintain environmental safety. Traditional pollution monitoring systems are expensive and limited in coverage, which makes real- time monitoring difficult in many locations. To address this issue, this project proposes a low-cost Internet of Things (IoT) based …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 69–75 Read article
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Abundance and Diversity of Meiofauna as Bioindicator of Water Quality and Health Status of Tombia Segment, New Calabar River, Niger Delta, Nigeria
Abstract: The abundance and diversity of meiofauna as bioindicator of water quality and health status of Tombia segment of the New Calabar River, Niger Delta, Nigeria was studied. Sediment samples from the respective stations were collected monthly in replicates between July and September,2023 using a handheld perplex corer at a depth of 10cm and analysed in the Laboratory following standard method of APHA. The data obtained were subjected to descriptive and …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 36–46 Read article
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Investigating Analogue Gravity Phenomena through Electronic Black Holes: A Study
Abstract: The universe, in its grand cosmic ballet, is replete with mysteries, and among the most profound are the enigmatic black holes. These celestial behemoths, born from the collapse of massive stars, warp spacetime to such an extent that nothing, not even light, can escape their gravitational embrace. Their behavior, governed by Einstein's theory of General Relativity, pushes the boundaries of our understanding, presenting phenomena like Hawking radiation – a quantum …
Published in International Journal of Microwave Engineering and Technology · Vol. 12, Issue 1, 2026 · pp. 9–24 Read article
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Hybrid Digital–Analog Signal Processing Framework forEnhanced Data Transmission in Next-Generation Wireless Communication Systems
Abstract: The rapid advancement of next-generation wireless technologies such as 5G and 6G has created an increasing demand for high data rates, low latency, and energy-efficient communication systems. Conventional digital signal processing techniques, while flexible and accurate, often suffer from high computational complexity and power consumption, whereas analog signal processing provides low-latency and energy-efficient solutions but lacks adaptability and robustness. This paper proposes a novel hybrid digital–analog signal processing framework that …
Published in International Journal of Digital Communication and Analog Signals · Vol. 12, Issue 1, 2026 · pp. 50–59 Read article
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Synthesis and Evaluation of Antifungal Properties of 2-((4-((6phenylimidazo[2,1-b][1,3,4]thiadiazole-2-yl)methoxy)phenoxy)methyl)-6-phenylimidazo[2,1-b][1,3,4] thiadiazole Derived from Hydroquinone
Abstract: Thiadiazole, a heterocyclic core, has garnered significant interest from chemists seeking novel therapeutic agents. The synthetic route for the target compounds is depicted in Scheme 1. The compounds were synthesized with favorable yields through the condensation of hydroquinone with various organic reagents. They underwent physical characterization and were analyzed using spectroscopic methods, including infrared (FTIR) and NMR (1H, 13C) spectroscopy. The FT-IR spectrum of the product exhibited a ν(C=N) absorption …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 76–82 Read article
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Advances in Agrochemistry for Sustainable Crop and Soil Management
Abstract: Agrochemistry plays a pivotal role in ensuring sustainable crop production and long-term soil health in the face of increasing global food demand, climate change, and environmental degradation. Conventional agricultural practices, characterized by excessive use of chemical fertilizers and pesticides, have led to soil nutrient imbalance, reduced microbial diversity, and environmental contamination. In response to these challenges, recent advances in agrochemistry have focused on developing sustainable and environmentally friendly approaches for …
Published in International Journal of Agrochemistry · Vol. 12, Issue 1, 2026 · pp. 26–31 Read article
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An Energetic Materials for Sustainable Solutions
Abstract: Nanomaterials are typically described as engineered substances possessing at least one dimension between 1 and 100 nm. Materials at the nanoscale display distinctive or enhanced characteristics, such as increased chemical reactivity, superior sensing performance, and improved mechanical properties. Nanotechnology provides a straightforward, rapid, clean, and cost-effective approach for synthesizing a wide range of organic compounds, encouraging many researchers to transition from conventional synthetic techniques. This article aims to highlight the …
Published in International Journal of Energetic Materials · Vol. 12, Issue 1, 2026 · pp. 7–12 Read article
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Nanostructured Hydroxyapatite: A Biomimetic Revolution in Enamel Regeneration and Remineralization
Abstract: Background Dental caries and erosive enamel wear remain among the most common chronic conditions worldwide, affecting more than 2 billion people and contributing to pain, tooth loss, and substantial economic costs. Conventional fluoridebased strategies reduce demineralization but do not fully restore enamel microstructure. Source and selection of data We searched MEDLINE, Embase, Scopus, and Cochrane Library for in vitro, in situ, and clinical studies on nanohydroxyapatite (nHAp) used for enamel …
Published in International Journal of Composite and Constituent Materials · Vol. 12, Issue 1, 2026 · pp. 1–11 Read article
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Spermmediated gene transfer revisited: optimizing delivery, integration, and germline transmissionin large animal models
Abstract: Spermmediated gene transfer (SMGT) exploits the natural role of spermatozoa as DNA vectors to deliver exogenous genetic material to oocytes, potentially enabling economical production of transgenic large animals without complex embryo micromanipulation (1). Early proofofconcept studies established that mammalian sperm can bind, internalize, and protect exogenous DNA, leading to integration, expression, and germline transmission in various species, including pigs (24). Subsequent mechanistic work has challenged the traditional view of sperm …
Published in International Journal of Animal Biotechnology and Applications · Vol. 12, Issue 1, 2026 Read article
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Evaluating the Role of Urban Green Spaces in Enhancing Neighborhood Livability: A Case Study of Vellayambalam
Abstract: Urban green spaces (UGS) constitute vital elements of sustainable urban systems, contributing significantly to ecological stability, social well-being, health benefits, and economic resilience. This study aims to evaluate the contribution of UGS to neighborhood livability in Vellayambalam, Trivandrum, by analyzing their environmental, social, and economic functions. The study includes combined geographical analysis, field survey, observation, and perspective study. Using maps helps to analyze the spatial distribution, accessibility, and ecological performance …
Published in International Journal of Landscape Planning and Architecture · Vol. 12, Issue 1, 2026 · pp. 41–51 Read article
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From Stress to Serenity: Adaptive Living Spaces for the Modern Tech Workforce
Abstract: Modern I.T. professionals often work long, irregular hours, seated for extended periods while managing deadlines, virtual meetings, and continuous digital interruptions. As homes increasingly function as hybrid workplaces, most residential interiors remain ill-equipped for this dual role, characterized by compact layouts, standardized furniture, inadequate lighting, and a lack of spaces for psychological detachment. This research advocates for adaptive and human-centered interior environments that promote physical comfort, mental well-being, and flexible …
Published in International Journal of Housing and Human Settlement Planning · Vol. 12, Issue 1, 2026 · pp. 46–57 Read article
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Nanotechnology-Enabled Non-Invasive Teeth Whitening: Safety, Efficacy, and Regulatory Perspectives with a Focus on India, Asia, and Developed Countries
Abstract: Demand for tooth whitening is growing worldwide, but conventional peroxide-based bleaching is associated with dentin hypersensitivity, enamel softening, and soft tissue irritation, especially under repeated or high-concentration use. Nanotechnology offers a new class of non-invasive whitening strategies that aim to combine esthetic improvement with enamel protection and remineralization. Among these, nanohydroxyapatite (nanoHAP) toothpastes and gels have the most advanced evidence base; in vitro and in situ studies indicate that nanoHAP …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 12, Issue 1, 2026 Read article
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Quantum Dots in Oral Diagnostics and Theranostics: Promise and Preclinical Status
Abstract: Quantum dots in oral diagnostics and theranostics represent a rapidly evolving, largely preclinical strategy that couples highly sensitive optical imaging with targeted therapeutic delivery in the oral cavity. Their size-dependent emission, high photostability, and broad excitation spectra allow bright, multiplexed visualization of key molecular events in oral potentially malignant disorders and oral squamous cell carcinoma, while surface functionalization with antibodies, peptides, or smallmolecule ligands enables selective binding to dysplastic and …
Published in International Journal of Applied Nanotechnology · Vol. 12, Issue 1, 2026 · pp. 18–25 Read article