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1120 articles for “Performance characterization”
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Influence of Infill Density on Structural Performance of FDM-Processed PET-G Polymer: Experimental Validation through Quadcopter Flight Testing
Abstract: Polyethylene terephthalate glycol-modified (PET-G) is an amorphous thermoplastic copolymer increasingly adopted in structural applications through fused deposition modeling (FDM). However, the correlation between FDM processing parameters, especially infill density, and mechanical performance of PET-G parts remains inadequately characterized under real-life loading conditions. This study investigates how infill density (10% and 30%, grid pattern) influences the structural integrity of FDM-processed PET-G components, validated experimentally through quadcopter airframe fabrication and flight testing. …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 644–656 Read article
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Interfacial Performance and Structural Stability of Repaired vs. Replaced Polymer-Based Composites: A 3-Year Retrospective Analysis of 'Patch-up' Restorative Engineering
Abstract: Objective: This retrospective study aimed to evaluate the clinical longevity and interfacial success of repairing aged polymer-based composites versus complete replacement, focusing on the integration between the existing polymer matrix and the new restorative material. Materials and Methods: A retrospective clinical audit was conducted on 50 cases (n = 50) of posterior restorations with localized defects. The sample was categorized into: Group A (n = 25), where defective sites were …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 180–187 Read article
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Marine Algal Fiber-Reinforced Bio-Composites with Embedded Humidity Sensors for Coastal Smart Infrastructure
Abstract: The development of sustainable structural materials with integrated sensing capabilities has emerged as an effective strategy for improving the durability and resilience of coastal infrastructure exposed to aggressive marine environments. In this study, a multifunctional marine algal fiber reinforced bio-composite incorporating an embedded flexible humidity sensor was developed for real-time structural health monitoring applications. Marine macroalgae (Ulva lactuca) fibers were chemically functionalized using 3-aminopropyltriethoxysilane (APTES) to enhance fiber–matrix interfacial adhesion …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 90–100 Read article
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Synthesis and Immobilization of N-doped Titanium Dioxide for Degradation of Amaranth Dye under Visible Light Irradiation from Light Emitting Diodes
Abstract: Titanium dioxide photocatalysis has a great potential as green and sustainable technology to treat pollutants present in water. In the present study, N-TiO2 (nitrogen doped titanium dioxide)photocatalyst was prepared by wet method using titanium tetra iso-propoxide and NH3. The calcination of the prepared photocatalyst was performed at different temperatures. The prepared catalyst was characterized by DRS, FE SEM and TEM. The N-TiO2 was immobilized on the surface of the quartz …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 2, 2016 · pp. 11–17 Read article
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Optimization of Multiple Responses in Turning of AA7075 Using Taguchi’s Quality Loss Method
Abstract: The present work is to explore the affect of turning parameters, speed, feed and depth of cut on the multiple performances of Material Removal Rate and Surface Roughness characteristics. AA7075 is considered as the work piece as it has extensive applications in the field of aerospace and marine sectors. The experiments are carried out using tungsten carbide tool of 0.4 nose radius and as per the standard Taguchi’s L9 Orthogonal …
Published in Journal of Mechatronics and Automation · Vol. 5, Issue 1, 2018 · pp. 31–37 Read article
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Identification of English Dialects and Emotions using Spectral and Prosodic Features of Speech Signal Processing
Abstract: AbstractIn this paper, the authors have explored speech features to identify English dialects and emotions. A dialect is any distinguishable variety of a language spoken by a group of people. Emotions provide naturalness to speech. Speech database considered for dialect identification task consists of spontaneous speech spoken by male and female speakers. The emotions considered in this study are anger, disgust, fear, happy, neutral and sad. Prosodic and spectral features …
Published in Journal of Computer Technology & Applications · Vol. 4, Issue 2, 2013 · pp. 10–17 Read article
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Fungal Synthesis of Silver Nanoparticles by an Indigenous Species of Fusarium, Its Antibacterial Activity and Efficacy as Antibiotic Enhancer
Abstract: The investigations on green combination strategies and on its potential applications for the humanity are on incline for more than 10 decades in the field of bioscience. The research on silver nanoparticles by the use of microorganisms is very much popular these days as it is very easily available source for their synthesis. In the present work, an indigenous Fusarium species isolated from soil sample has been used for the …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 · pp. 10–18 Read article
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Nursing Teachers’ Behavior and their Influence on Academic Performance Among Students
Abstract: In our day a modern teacher role has gone beyond just above teaching class, giving lectures, making exams and giving grades; the teacher actions influence the learner’s community and society, leading to a sound foundation towards the future of society and ensuring the continuation of actions. The present study aims to assess the correlation between faculty personality and its influence on academic performance of nursing students. A descriptive correlational design …
Published in Journal of Nursing Science & Practice · Vol. 12, Issue 2, 2022 · pp. 31–36 Read article
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Evaluation of Petroleum Hydrocarbon Characteristics on Temperature Effect in Packed Bed on the Concept of Adsorbent Comparison
Abstract: Petroleum hydrocarbon treatment in a contaminated water medium was examine using different adsorbents made of plantain stem fibre, banana stem fibre and palm oil fibre obtained in Obite community in Ogba/Egbema/Ndoni Local Government Area of Rivers State of Nigeria. The three different materials were processed and prepared as an adsorbent for the purpose of treatment of contaminated water medium with petroleum hydrocarbon. The comparison of the adsorbents was monitored with …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 10, Issue 3, 2023 · pp. 25–37 Read article
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An Automation Detection for Sign Language Using AI
Abstract: Sign language recognition has attracted considerable interest because of its ability to facilitate communication between the deaf community and the public, thereby bridging communication divides. Traditional approaches to sign language recognition often face challenges in accurately interpreting the complex and nuanced gestures inherent in sign languages. However, recent advancements in deep learning techniques have shown promising results in improving the accuracy and robustness of sign language recognition systems. This study …
Published in Recent Trends in Programming languages · Vol. 11, Issue 1, 2024 · pp. 1–14 Read article
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Measuring Microstructure, Wear Resistance, and Mechanical Reliability Enhancement in Polymer Nanocomposites via Data-Driven Analysis with Deep Learning
Abstract: Polymer nanocomposites have gained great attention owing to their superior mechanical performance, better wear resistance and customizable microstructural properties for aerospace, automotive, medicinal and industrial engineering applications. However, the correct evaluation of the link between the microstructure evolution and the material reliability is a huge issue due to the intricacy of nanoscale interactions and diverse material characteristics. In this study, we propose a data-driven approach that integrates deep learning and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Optimization of turning process parameters for Titanium grade 5 using Taguchi method
Abstract: In the contemporary world, the standard of the surface end is most significant demand for several turned work piece due to that maker's square measure seeking to stay competitive in the market. Taguchi parameter style is a powerful tool and efficient methodology for optimizing quality and performance output of the producing method. This paper investigates the parameters poignant the surface roughness manufacture in turning method for material Titanium Grade 5. …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 2, 2019 · pp. 17–22 Read article
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Study of Experimental and Finite Element analysis of Composite Mudguard for Performance Enhancement with Existing Material
Abstract: Two wheelers sale is creasing in India with drastically level So, this results into increase competition in Competition in this segment has made the two-wheeler OEM to manufacture product at low cost without comprising its performance. Vibration Analysis is modern method to evaluate the life span of components performing vibration, therefore we can manufacture component with alternative material within less time. Front mudguard is a styling component generally made with …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 1, 2021 · pp. 33–42 Read article
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Aerodynamic Optimization of UAV Wings Using Machine Learning
Abstract: Unmanned Aerial Vehicles (UAVs) are increasingly deployed across defense, transportation, agriculture, and environmental monitoring, demanding improved aerodynamic efficiency to enhance endurance, stability, and payload capacity. Traditional aerodynamic optimization approaches, relying on computational fluid dynamics (CFD) simulations and wind tunnel experiments, are often time-consuming and computationally expensive. This study proposes a machine learning (ML)-driven framework for the aerodynamic optimization of UAV wing geometries, aiming to significantly reduce design cycles while improving …
Published in International Journal on Drones · Vol. 2, Issue 1, 2026 · pp. 1–7 Read article
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An Ultra Wideband Hexagonal Patch Antenna with Enhanced Bandwidth
Abstract: A microstrip line feed Ultra-Wideband (UWB - 3.1 to 10.6 GHz) hexagonal patch antenna with enhanced bandwidth was presented in this article. The enhancement of bandwidth (BW) is achieved by defecting the partial ground structure. The antenna is designed by FR-4 substrate with εr(dielectric constant) = 4.3 & Tan δ (loss tangent) = 0.025.Initially, a conventional hexagonal patch with a partial ground plane produces a – 10 dB bandwidth of …
Published in Recent Trends in Electronics Communication Systems · Vol. 9, Issue 1, 2022 · pp. 11–20 Read article
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Tribological Performance and Wear Coefficient Prediction of AA2024–TiC Composites via Python-Based Machine Learning
Abstract: Determining wear coefficient accurately serves as a critical factor to maximize engineering materials' tribological characteristics. The experiment examines the wear characteristics of TiC-reinforced AA2024 aluminum alloy subjected to different tribological operating conditions. A pin-on-disc tribometer performed wear tests under different conditions of load and TiC weight fraction and sliding speed and duration. ANOVA statistical results show that load intensity and TiC reinforcement density stand out as principal variables that affect …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 1099–1112 Read article
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Multi-factor Fused Lightpath QoT Prediction for Optical Networks: A Multiple Reservoir Analysis Strategy
Abstract: Investigating the channel quality of transmission (QoT) in-depth is crucial for responsive and instant transparent optical network management. However, current lightpath QoT predictions are devoted to univariate modeling. Due to the QoT metrics complicated time-varying process and the existing effects of inter-channel factors, despite the use of an advanced and efficient echo state network (ESN), it is difficult to obtain ideal results in univariate prediction mode. Thus, this paper considers …
Published in Trends in Opto-electro & Optical Communication · Vol. 14, Issue 1, 2024 · pp. 28–34 Read article
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Rheology and Flow Properties of Fracturing Gels in Straight and Coiled Tubing
Abstract: This study involves experimental investigation of rheological and hydraulic characteristics of aqueous based polymeric and surfactant fluids in straight and coiled tubing. The fluids matrix includes guar, HPG, PHPA, welan, xanthan, and surfactant. Bohlin rheometer was used to evaluate rheological and viscoelastic characteristics. For hydraulic characteristics, small- and large-scale flow loops were used. It is observed that all fluids exhibit comparable non-Newtonian behavior and improved viscous and elastic properties. Among …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 27–43 Read article
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Image-Based Quantitative Mapping of Structure Property Relationships in Polymer Composite Materials
Abstract: The performance of polymer composite materials is intrinsically governed by their microstructural architecture, which is shaped by manufacturing conditions and constituent interactions. Despite extensive experimental characterization efforts, establishing transparent and quantitative structure–property relationships from microstructural images remains a challenge. In this study, an explainable image-driven framework is developed to systematically correlate microstructural features with composite property indicators. Microstructure images are processed to identify voids, fibers, and filler phases, from which …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 188–196 Read article
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Simulation of Electric Vehicles DC Engine Performance
Abstract: This works develops a simulation model to predict the performance of direct current electric motors for electric vehicles (EV), mainly focused on the required power and mechanical torque as a function of the driving conditions. The simulation, therefore, has been based on the dynamic conditions of the electric vehicle to reproduce the current driving in urban routes or intercity travels. The model has been applied to synchronous and asynchronous transmission …
Published in Journal of Automobile Engineering and Applications Read article