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478 articles for “R Glass”
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Management of Discolored Maxillary Anterior Teeth Using Porcelain Laminate Veneers: A Case Report
Abstract: Teeth discoloration is a common problem and affects people of all ages. Apart from the conventional treatment modalities for the same, newer options are available today with better techniques and materials. Porcelain laminate veneer is used widely throughout the world for aesthetic correction for discolored and damaged tooth structures. Certain properties of dental ceramic when used as a restorative material such as excellent color stability, acceptable mechanical strength, satisfactory aesthetic …
Published in Research and Reviews: A Journal of Dentistry · Vol. 8, Issue 2, 2017 · pp. 4–6 Read article
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Efficacy and Efficiency of Fingerprint Powder Derived from Natural Flowers – Development and Evaluation of Sustainable Fingerprint Powders
Abstract: Fingerprints are crucial elements in forensic investigations. Latent or invisible fingerprints are commonly recovered from the scene of crime and hence require an attention for which visualization methods are needed. Conventional methods are relatively expensive, which may cause harmful threats and health hazards due to presence of chemical content. This study offers a cheap and sustainable fingerprint powder sourced from natural materials. In this study the powders were prepared from …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 15, Issue 3, 2025 · pp. 6–17 Read article
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The Theoretical and Experimental Study of the Behavior of the Mercury Drop, Fixed on the Glass Bottom of Vessel with Fluid, Under the Acceleration of Gravity Change
Abstract: At present time, accumulated theoretical material of the studies of the equilibrium forms of the gas bubbles or mercury drops, fixed on the surface of solid material in the fluid or on the glass bottom of vessel with fluid, under the acceleration of gravity change, was carried out either on the basis of geometric similarity laws that greatly simplify the essence of physical processes, or on the basis of theoretical …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 4, 2021 · pp. 1–12 Read article
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The Theoretical and Experimental Study of the Behavior of the Mercury Drop, Fixed on the Glass Bottom of Vessel with Fluid, Under the Acceleration of Gravity Change
Abstract: At present time, accumulated theoretical material of the studies of the equilibrium forms of the gas bubbles or mercury drops, fixed on the surface of solid material in the fluid or on the glass bottom of vessel with fluid, under the acceleration of gravity change, was carried out either on the basis of geometric similarity laws that greatly simplify the essence of physical processes, or on the basis of theoretical …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 2, 2021 · pp. 1–12 Read article
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Compact Arrow Shape Microstrip Antenna for WiMAX Application
Abstract: Abstract In this paper, microstrip patch antenna dual band which is used for personal communication system and wireless local area network has been discussed. The two bands of ranges 1.72–2.008 GHz (15.43%) and 2.7–3.964 GHz (37.93%) are obtained. The antenna is fed by coaxial cable probe feeding technique. The microstrip patch antenna is designed on the glass epoxy substrate having dielectric constant 4.4 and simulated on the IE3D Zealand software. …
Published in Recent Trends in Electronics Communication Systems · Vol. 3, Issue 3, 2016 · pp. 24–28 Read article
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BUCKLING ANALYSIS OF COMPOSITE CYLINDRICAL SHELL STRUCTURE USING FINITE ELEMENT ANALYSIS
Abstract: When designing cylindrical shells one should consider not only the strength problem in service, but also the buckling problem. Cylindrical shells such as thin-walled structures are susceptible to buckling when subjected to static and dynamic stresses. The vessels are exposed to dynamic sea conditions depending on their usage. The functional failure of a pressurized composite vessel or a composite pipe in the form of leakage or weeping of the contained …
Published in Journal of Polymer & Composites · Vol. 7, Issue 2, 2019 · pp. 32–36 Read article
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Generative AI-Driven Design Optimization of Lightweight Polymer Composites for Electric Vehicles
Abstract: Lightweight polymer composites are increasingly important for electric vehicles, where mass reduction must be achieved without compromising structural performance, thermal stability, manufacturability, or material reliability. This study develops a generative AI-driven inverse-design framework for identifying experimentally credible lightweight polymer-composite configurations under coupled EV-oriented constraints. Public experimental polymer-composite datasets were integrated through leakage-controlled preprocessing and group-aware validation. A multi-task neural surrogate predicted mechanical response, while a conditional variational autoencoder explored feasible …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Efficient Cooling by Solar Hybrid Air Conditioning System
Abstract: This paper introduced about general properties of solar hybrid air conditioning system consisting of R22 refrigerant in vapour compression refrigerant cycle with solar still system construction. The solar still is a construction made with GI sheet box with tapered shape and a glass is kept over the tapered box at 18˚ angle and box is coated with black paint for trapping solar radiation inside the box by greenhouse effect. This …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 2, 2019 · pp. 1–5 Read article
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Mechanical and Thermal Performance of PETG Composites Reinforced with Short Carbon Fibers via Fused Filament Fabrication
Abstract: The study investigates the fabrication and characterization of polyethylene terephthalate glycol (PETG) composites reinforced with short carbon fibers (CF) using the fused filament fabrication (FFF) technique. Composite filaments with varying CF weight fractions (0, 5, 10, 15, and 20 wt%) were produced and evaluated for their mechanical, thermal, and morphological performance. The influence of CF reinforcement on tensile, flexural, and impact behavior was systematically examined, alongside thermal stability metrics including …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1219–1238 Read article
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Synthesis of Nickel Oxide Nanoparticles by Foam Fractionation
Abstract: Nanoparticles of nickel oxide (NiO) have been prepared by foaming technique. Nickel nitrate hexahydrate as a source of nickel and cetyltrimethylammonium bromide (CTAB) as a surfactant were used for the synthesis of nickel oxide. Air flow rate of 0.3 lpm through sparger was controlled by rotameter. NiO is prepared by calcination of nickel hydroxide. The generated foam was collected from the sample outlet provided at the top of the glass …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 3, 2018 · pp. 44–48 Read article
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A Study of Nature Based Dye with Different Extracting Solvents as a Sensitizer for Dye-Sensitized Solar Cells
Abstract: In this paper, natural dye extracts were used as a sensitizer for Dye Sensitized Solar Cell (DSSC). The natural dye was extracted from Lantana camara leaf, flower and Clitoria ternatea flower using ethanol and acidified ethanol (in 1% HCl) as extracting solvent. The DSSCs have been fabricated using pure TiO2 and Ni doped TiO2 layers as photoanodes deposited by Doctor Blade method on fluorine doped Tin Oxide (FTO) glass substrate …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 3, 2018 · pp. 69–73 Read article
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Thermo-Mechanical and Electrical Properties of Multi-Walled Carbon Nanotube-Enhanced Polyimide Composites for Aerospace Thermal Protection Systems
Abstract: Advanced aerospace thermal protection systems (TPS) require multifunctional materials that simultaneously provide high thermal stability, mechanical strength, and reliable electrical performance. Polyimide (PI) is widely used in aerospace structures due to its lightweight design and exceptional thermal durability, yet its low thermal conductivity and insulating behavior limit its effectiveness in heat dissipation and electromagnetic interference (EMI) shielding applications. This study addresses these limitations by developing multi-walled carbon nanotube (MWCNT)-reinforced polyimide …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 966–982 Read article
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ML-Based Predictive Modeling of Mechanical Properties in 3D-Printed Polymer Composites for IoT Applications
Abstract: This study aims to develop an interpretable and high-accuracy machine learning framework for predicting the mechanical properties of 3D-printed fiber-reinforced polymer composites, with a focus on structure–property correlations relevant to polymer processing and functional performance. Composite specimens based on PLA and ABS matrices were fabricated using FDM with varying weight fractions (5–20 wt%) of carbon and glass fibers. Standardized mechanical testing (ASTM D638, D256, D790) was performed to evaluate tensile …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 61–78 Read article
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Analysis of Quicklime Production from Eggshell through Factorial Study
Abstract: Factorial analysis is a method used in experimental design to assess the impact of different input factors on the resulting output. Quicklime is used extensively in many sectors, including those that produce paper, glass, tannery products, agriculture, water treatment, building, and agriculture. This study focused on evaluating key parameters in the calcination process, specifically calcination temperature, calcination time, and the size of eggshell and snail shell particles. The study successfully …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 2, 2023 · pp. 18–22 Read article
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Design of a HVAC System for an Entire Hotel
Abstract: HVAC&R systems stands for (heating, ventilation, air conditioning and refrigeration). These systems are particularly used in thermal industries and other commercial offices. The main aim of the project is to design an energy efficient and cost efficient HVAC system for a given layout of a hotel. This project particularly deals with the heat load calculation, selection of materials, selection of systems taking into consideration of various factors like :- Structure …
Published in Journal of Production Research & Management · Vol. 10, Issue 2, 2020 · pp. 17–19 Read article
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Improvement of mechanical properties for PMMA based Denture material
Abstract: Denture material properties can be improved by various fiber addition. The most often used denture materials are polymethyl methacrylate (PMMA) resins; nevertheless, they do not have a high flexural strength (FS). This investigation compared the mechanical characteristics of an injection-molded polyamide. Deflex, an additional injection-molded PMMA base material, SRIvocap, and a typical compression-molded PMMA (Meliodent). The flexural qualities (deflection, bending strength, and bending modulus) of 100 different denture base materials …
Published in Journal of Polymer & Composites · Vol. 12, Issue 3, 2024 · pp. 155–165 Read article
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Enhanced Room-Temperature Gas Sensing Performance of 2% Mn-Doped Sri Lankan Natural Graphite Thin-Film Sensors for Ammonia, Acetone, and Ethanol vapors Detection
Abstract: The development of room-temperature gas sensors with high sensitivity, fast response, and low-cost remains a critical challenge for environmental monitoring and safety applications. In this work, we report the fabrication and characterization of a 2% Mn-doped Sri Lankan natural graphite thin-film sensor for the detection of ammonia (NH3), ethanol (C2H5OH), and acetone (C3H6O) vapors under ambient conditions. The sensor was prepared using the doctor-blade coating method on Indium Tin Oxide …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 2, 2026 · pp. 39–49 Read article
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Antibiofilm Activity of Thermal Evaporated Tin Oxide Thin Film
Abstract: Biofilm is the deposition of microorganisms and their products on a solid surface submerged in water, which is prevalent problem, responsible for the degradation of the surface over the time. Elimination of microorganisms from submerged solid surface is enormously important process to reduce degradation of that surface. Recently, Tin Oxide (SnO2) nanoparticles have attracted the attention of researchers for its antibacterial property due to hydrophobic and non-toxic nature. Thin films …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 17, Issue 3, 2015 · pp. 1–5 Read article
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Studies on Polymer Modified Bitumen with various Fiber Impregnation
Abstract: Transportation sector is showing immense growth in the recent decades, modern vehicles introduced require a more stable platform to run better. In terms of road construction, we are not yet reaching the modernized standards adopted by other countries and usage of modern and innovative road construction materials are yet to be used in transportation infrastructure sector. The available roads are also getting damaged due to improper maintenance of top layer …
Published in Trends in Transport Engineering and Applications · Vol. 1, Issue 3, 2014 · pp. 19–24 Read article
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Effects of Plasticizers on Structures of Chemical Functional Groups, Morphologies, Water Vapor Permeability, and Thermal Properties of HPMC/BW Biopolymer Films
Abstract: Food preservation is one of the fields that many researchers are interested in, especially in the epidemic period like COVID-19 today. The better food or agricultural products are preserved for a long time, the more it ensures social stability for state management related to food security for people. This paper introduces one kind of biopolymer films with investigation on effect of plasticizers to its characteristics. In order to produce biopolymers, …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 10–20 Read article