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129 articles for “EM radiations”
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Binary GA for Sidelobe Reduction and Null Steering in 5G Array
Abstract: This paper presents a comprehensive performance evaluation of a Binary Genetic Algorithm (BGA) for optimizing radiation characteristics of an active phased array antenna used in fifth-generation (5G) wireless communication systems. The primary objective is to achieve effective null steering while maintaining the desired main beam direction and simultaneously reducing the side lobe level (SLL). These improvements are essential for minimizing co-channel interference, enhancing spatial selectivity, and improving the Signal-to-Interference-plus-Noise Ratio …
Published in International Journal of Radio Frequency Innovations · Vol. 4, Issue 2, 2026 Read article
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Building a Resilient Climate Regulatory Ecosystem for Nigeria
Abstract: Terrestrial ecosystems, which store more carbon than the atmosphere, are vital to influencing carbon dioxide-driven climate change. Climate and land-use change are critical and interlinked components of the Carbon budget in human-dominated landscape, using the InVEST model maps of land use and stocks in four Carbon pools (aboveground biomass, belowground biomass, soil, dead organic matter) are used to estimate the amount of Carbon currently stored in the landscape and the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 2, 2020 · pp. 46–62 Read article
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Comparative Analysis of Supercritical Boiler efficiency with Indian and Imported Coal under Indian Condition.
Abstract: Due to the growing demand for generating and the depletion of basic resources, power plants with larger capacity and higher efficiency are becoming increasingly necessary. In this context, Governments and private sectors are going to invest huge resources to construct power plants with super-critical units working on Indian as well as imported coal (Indonesian & South African). Supercritical technology is always embraced all over the world, and India is no …
Published in Journal of Thermal Engineering and Applications · Vol. 10, Issue 2, 2023 · pp. 31–36 Read article
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Gamma Irradiation Effects on Structural and Optical Properties of PVA/Al₂O₃/TiC Polymer Nanocomposites for Optoelectronic Applications
Abstract: PVA/TiC/Al2O3 nanocomposite (PTA) films were successfully prepared via the solution casting method. The impact of high-dose gamma (γ) irradiation (30 kGy) on the structural and optical properties of PVA/TiC/Al2O3 nanocomposites was systematically explored using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and UV–Visible spectroscopy. XRD analysis confirmed the semi-crystalline nature of the nanocomposites, which was found to decrease upon incorporation of Al₂O₃ nanoparticles and exposure to …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 717–729 Read article
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Digital Twin Assisted Intelligent Prediction of Polymer Composite Degradation Under Environmental Exposure
Abstract: Polymer matrix composites (PMCs) deployed in aerospace, marine, automotive, and renewable-energy structures are continuously subjected to coupled environmental stressors — ultraviolet (UV) radiation, moisture ingress, thermal cycling, and mechanical loading — that progressively degrade their mechanical performance. Conventional accelerated ageing tests and empirical lifetime models are time-consuming, destructive, and poorly suited to in-service, asset-specific degradation forecasting. This paper proposes a Digital Twin (DT) assisted intelligent prediction framework that fuses a …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Size Dependent Fluorescence Decay Dynamics of MoS2 Nanoflakes
Abstract: This paper reports a profound method to prepare MoS2, and the effect of ultraviolet light irradiation on its emission characteristics. The exfoliation of molybdenum di-sulfide (MoS2) in a liquid phase has been achieved successfully via probe sonication for different time intervals followed by centrifugation method. Ultraviolet–visible (UV–vis) spectra of the obtained MoS2 dispersions at different exfoliation time indicate that the concentration of MoS2 nanosheets as well as MoS2 quantum dots …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 71–76 Read article
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Electromagnetic and Dielectric Performance of Polymer–Ceramic Composite Substrates for Fractal-Based IoT-Antenna Fabrication
Abstract: Polymer–ceramic composite substrates play a crucial role in determining the electromagnetic performance, mechanical stability, and thermal reliability of radio-frequency devices. In this work, a polymer-based composite substrate is systematically investigated for its suitability in compact IoT and RFID antenna applications. A fractal-structured antenna is employed as a functional test platform to evaluate the dielectric behavior, impedance characteristics, and radiation efficiency of the composite substrate. Novelty of the proposed reader antenna …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1518–1534 Read article
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Mechanisms and Applications of Lyoluminescence
Abstract: When strongly energized halide or organic crystals are dissolved in а liquid solvent like water, light is emitted as an end result of а recombination process. This emission of light is known as Lyoluminesсenсe0. The emitted light intensity, called the Lyoluminescent intensity, depends on а class of factors like radiation doses, probability of radiative recombination, rate of dissolution inside the solvent, etc. The effect is enhanced when the materials have …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 1–6 Read article
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Internet of things (IoT) to harvest energy
Abstract: This article is a study to describe the internet of things (IoT) after industrial capability, especially to allocate electrical energy harvest. The usual method of renewable and clean sources of energy is selected for wireless sensor nodes (WSN). Inclusive harvest energy applied sustainable power supply sources such as mechanical motion, radiation, thermal gradient, and light. Smart energy harvests for IoT networks supported by femtocells empower nodes. Electrical power has been …
Published in Recent Trends in Sensor Research & Technology · Vol. 8, Issue 2, 2021 Read article
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Leveraging cross-coupled domino logic for low-power, two-port SRAM with resilience to Differential Power Analysis (DPA) attacks
Abstract: Side channel attacks have become a serious threat to embedded and cryptographic systems. These attacks can be deployed by capturing the power consumption traces or electromagnetic radiations from the power and communication channels. SRAM is vulnerable to such attacks. Power consumed by SRAM for various read and write operations can express the information about bits being read from or written into the bit-cells which eventually exposes the instructions and data …
Published in Journal of VLSI Design Tools and Technology · Vol. 11, Issue 1, 2021 · pp. 8–16 Read article
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Climate Change and Air Pollution Dynamics: Synergistic Effects and Mitigation Strategies
Abstract: Climate change and air pollution are deeply interlinked environmental problems that jointly exacerbate human health, ecosystem integrity, and economic well‑being. As global temperatures rise, shifts in meteorological conditions—such as increased heat, altered precipitation, and more frequent extreme weather events—modify pollutant generation, dispersion, chemical transformation, and removal processes. Meanwhile, many sources of air pollution are also sources of greenhouse gases (GHGs), giving rise to potential co‑benefits or trade‑offs when formulating mitigation …
Published in International Journal of Environmental Noise and Pollution Control · Vol. 3, Issue 2, 2025 · pp. 38–42 Read article
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Neurodevelopmental Effects of Cell Tower Radiation in Children: A Longitudinal Study
Abstract: This study investigates the impact of radiation exposure from cell phone towers on the neurodevelopmental outcomes of children aged 0–5 years. A prospective cohort approach was employed to assess key developmental parameters, including Gross Motor Skills, Fine Motor Skills, and sleep disorders. Given the increasing presence of wireless communication infrastructure, understanding its potential effects on early childhood development is crucial for public health.To analyze the collected data, advanced machine learning …
Published in Research and Reviews : Journal of Computational Biology · Vol. 14, Issue 2, 2025 Read article
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Thermally Responsive Electroluminescence in ZnS: Mn Phosphors: Experimental Insights
Abstract: ZnS: Mn phosphors and thin film technologies have been used to create alternative current thin film light emitters. Establishing a precise model for these devices becomes challenging because they rely on frameworks that have a definitive effect on the final product, such as the size of the molecules used, the phosphor fabrication process, and the doping concentration, the purity of ZnS, the device structure, and so forth. The ZnS: Mn …
Published in Journal of Microelectronics and Solid State Devices · Vol. 10, Issue 2, 2023 · pp. 9–14 Read article
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The Impact of Nanotechnology in Transforming Neuro-oncology - A Comprehensive Review
Abstract: The treatment of central nervous system (CNS) tumours, including aggressive malignancies like glioblastoma, faces significant challenges. The blood–brain barrier (BBB) blocks nearly 98% of small-molecule drugs from achieving therapeutic levels in the brain, and the heterogeneity of these tumours frequently contributes to treatment resistance and poor outcomes. Traditional approaches, including chemotherapy and radiotherapy, are hindered by systemic toxicity and inadequate drug penetration. Nanotechnology provides a promising alternative, as nanoparticles (NPs) …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 627–637 Read article
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Atmospheric Modeling: A Comprehensive Review of Numerical Approaches and Applications
Abstract: Atmospheric modeling plays a crucial role in understanding and predicting atmospheric processes, weather patterns, and climate variability. This review synthesizes current methodologies and applications across several types of atmospheric models, including numerical weather prediction (NWP), climate models, air quality models, and chemical transport models. We explore the intricacies of data assimilation, model evaluation, parameterization, and the importance of high-performance computing in advancing model accuracy and efficiency. Special emphasis is placed …
Published in International Journal of Atmosphere · Vol. 1, Issue 2, 2024 · pp. 16–21 Read article
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Developing Food Packaging with Nanomaterials: In-Depth Examination based on Electromagnetic and Optical Radiations
Abstract: Problems with food degradation, infection, and environmental compatibility are driving constant innovation in the food packing sector. Nanomaterials (NM) are investigated as possible solutions to the problem to improve the effectiveness of food packaging by means of their exceptional optical and electromagnetic characteristics. Several factors, such as the need to analyze capacity, cost-effectiveness, and possible environmental implications, prohibit the use of NM in food packing. This review summarizes the optical …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 36–44 Read article
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Polymer and Polymer-Metallic Reflective Materials for Solar Thermal Applications: A review
Abstract: Reflective materials play a critical role in determining the optical and thermal performance of solar thermal systems by controlling the concentration and utilization of incident solar radiation. This review examines the application and performance of polymer-based and polymer-metallic reflective materials for solar thermal applications, with particular emphasis on their suitability for solar cookers and concentrating solar technologies. Four commonly used reflector materials—aluminum foil, anodized aluminum, Mylar (metallized polyester film), and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Design of Phase Coded Sequences for MIMO Radar Systems
Abstract: MIMO radar technology is emerging trend in the radar systems and researchers are interested to explore this technology. Phased array radars show single waveform radiated in one direction where has MIMO antennas can radiate in different directions and locate multiple targets with better resolution. To design waveform for MIMO radar, every transmitted waveform must orthogonal all corresponding waveform. Many binary orthogonal sequences, i.e., orthogonal with respect to frequency or phase …
Published in Current Trends in Signal Processing · Vol. 12, Issue 3, 2022 · pp. 28–35 Read article
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Scaling Cost Model for the Economics of Concentrated Solar Power Plants
Abstract: Concentrated Solar Power (CSP) is a renewable energy technology that can provide clean and reliable energy to regions with adequate environmental resources. Especially for the regions around the Mediterranean Sea, where solar radiation is significant, this technology seems to have great potential to meet the medium and long-term targets for emission-free energy production, once cost-related issues have been resolved. Factors such as the capacity of the plant, the efficiency of …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 2, Issue 1-3, 2012 · pp. 74–87 Read article
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An Overview of Surface Coating Methodologies and Their Use in Technical Materials
Abstract: To safeguard the product or structure against chemical harm, a variety of procedures and materials can be applied in coating applications today. Nowadays, coatings are used extensively in manufacturing all over the world to increase efficiency and reduce expenses two factors that are essential to preserving the sector's profitability. Coated materials have greater strength compared to uncoated materials. A variety of materials, including bio glass, polymers, ceramics, strong and hard …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 19–35 Read article