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163 articles for “absorption system”
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The Effect of Rare Earth (RE) Metal Doping of Zno, On Magnetic and Optical Properties of Zno Crystals Structure
Abstract: The magnetic and optical properties of magnetic semiconductors relays on the crystal structure, type and amount of dopant ions, and particle size. Then, the effect of rare earth metal (Dy, Eu, and La) doping on crystal structures, magnetic properties and optical properties are seen. It is revealed that the optical band gap of ZnO decrease down from 3.37eV up on doping with RE metals. Then, the Hamiltonian of the system …
Published in International Journal of Crystalline Materials · Vol. 2, Issue 2, 2025 · pp. 28–40 Read article
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A Ventilated Dual-Function Photonic–Phononic Metasurface for Simultaneous Passive Radiative Cooling and Low-Frequency Noise Mitigation in Building Envelopes: Conceptual Design and Computational Feasibility Analysis
Abstract: Acoustic metamaterials for sound insulation and photonic/radiative-cooling metamaterials for passive thermal management have each matured separately for building-envelope retrofit, but existing studies address ventilation, acoustic damping and radiative thermal control in isolation, and no reported unit-cell architecture co-designs all three within a single shared structure. This gap persists because materials that are acoustic absorptive are generally dense and structurally opaque, whereas materials that are highly solar-reflective are conventionally applied to …
Published in International Journal of Energy and Thermal Applications · Vol. 4, Issue 2, 2026 Read article
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A Review on Formulation and Evaluation of Polyherbal Face Sheet Mask.
Abstract: This research focuses on the formulation and evaluation of a polyherbal face sheet mask developed using natural herbal ingredients to address common skin concerns such as acne, dullness, pigmentation, sun damage, dark spots, and uneven skin tone. With the increasing demand for safe, eco-friendly, and chemical-free skincare products, herbal-based cosmetic formulations have gained significant attention due to their therapeutic properties, minimal side effects, and enhanced consumer acceptance. Face sheet masks …
Published in Research & Reviews : Journal of Herbal Science · Vol. 15, Issue 2, 2026 · pp. 8–15 Read article