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811 articles for “graph”
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Dielectric Properties of Reduced Graphene Oxide with Nickel Cobalt Ferrite and Nickel Zinc Ferrite Epoxy Nanocomposites
Abstract: In this work, two systems of the composite were prepared using NiCoFe and NiZnFe with reduced graphene oxide(rGO) epoxy and the samples were subjected to electrochemical impedance spectroscopy (EIS). The Quality factor and loss tangent values of the composite was found out as a function of frequency. The modified ferrite-graphene-epoxy blends show dielectric loss and Quality factor values at low frequency. The incorporation of graphene aims to improve electrical conductivity, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 11, 2023 · pp. 28–37 Read article
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An Analysis of Graph Database in Data Modelling and Analysis for a Recommendation System
Abstract: This research work focuses on graph databases, mainly Neo4j databases, in recommendation systems for e-commerce websites. The importance of research is that it explains how graph databases efficiently handle the complex relationship between user-items, which is difficult for traditional databases. Sparsity, limited diversity, and high setup costs are the challenges traditional databases face. This research work overcomes these problems using Ne04j with Cypher query language and graph algorithms (PageRank, Shortest …
Published in Journal of Advanced Database Management & Systems · Vol. 12, Issue 3, 2025 · pp. 33–39 Read article
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Fabrication and Assessment of Tribological Performance of Nickel-Graphene-MXene Hybrid Nano-composites
Abstract: As industries such as aerospace, automotive, defence, and electronics demand materials with superior wear resistance, high strength, and thermal stability, traditional metals are reaching their performance limits. Hybrid nanocomposites offer a pathway to meet these stringent requirements. In this study, novel Nickel-Graphene-MXene hybrid nanocomposites were fabricated using a powder metallurgy route, incorporating varying weight percentages (up to 2 wt.%) of MXene and 1 wt.% graphene nanosheets into a nickel matrix …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 780–798 Read article
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Enhance Thermal and Conductive Properties through Graph Neural Network-Based Machine Learning-Driven Advanced Polymer Material Design
Abstract: Advanced polymer materials are widely used in modern engineering and manufacturing because of their lightweight nature, flexibility, durability, and adaptability to different applications. However, designing polymer materials with enhanced thermal and electrical properties remains a challenging task. The performance of polymers is influenced by a complex combination of molecular structures, filler materials, processing parameters, and nanoscale interactions. Conventional optimization methods often require extensive experimental trials and computational resources, making it …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 386–407 Read article
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Wear Characteristics of Aluminium-Graphite Composites Produced by Stir Casting Technique
Abstract: Metal matrix composites (MMCs) are finding more applications due to their significantly improved properties such as high specific strength, high specific modulus, good damping capacity and good wear resistance compared to unreinforced alloys. In recent years, there has been an increasing interest in composites containing low density and low cost reinforcements. Graphite is one of the most suitable and low density reinforcement available for making light-weight and wear resistant parts …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 3, 2014 · pp. 13–20 Read article
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Effect of Shock Waves on the Hardness of Graphene Reinforced Aluminium Composites
Abstract: The advantageous properties of Aluminium metal components have proved their suitability in the field of aerospace industry, naval, sports, and other structural applications. Its disadvantages like high wear rate, less hardness limits its application for some special applications. Graphene is an allotropic form of carbon which exhibits high tensile strength, better co-efficient of friction and an easily derivable material from the carbon which is abundantly available in nature. Reinforcement of …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 32–38 Read article
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Development and Synthesis of Graphene Based Gas Sensor
Abstract: AbstractGraphene has become a promising material for many different applications, such as nano electronic devices, physical, chemical and biochemical sensors, transparent conductive films, clean energy scavenging and storage devices and nano composite formulation. Recently gas sensing as a critical application intelligent system, is receiving increasing attention in both industry and academia. Sensing application using graphene sheets as transducer have experienced surge of activities in recent years, especially for gas sensing …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 2, 2020 · pp. 13–19 Read article
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Processing of Magnesium Metal Matrix Composite Reinforced with Graphene Nano Platelets through Vacuum Stir Casting and Investigating its Mechanical Behaviour
Abstract: AbstractThe application of metal matrix composites (MMCs) as structural engineering materials has received increasing attention in recent years. Their high strength and toughness at elevated temperatures coupled with low-density makes them suitable for use in applications where conventional engineering materials, such as steel are used. MMCs exhibit significantly higher stiffness and mechanical strength compared to matrix alloys, but often suffer from lower ductility and interior fracture toughness. MMCs have the …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 3, 2018 · pp. 21–29 Read article
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Federated Learning Framework for Sustainable Multi-Scale Design of Recyclable Thermoplastic Graphene Composites in Smart Manufacturing Environments
Abstract: The growing demand for sustainable advanced materials has accelerated the development of recyclable thermoplastic graphene composites for next-generation smart manufacturing systems. The typical central optimization methods have challenges with data privacy, scalability, and poor collaboration between distributed manufacturing sites. By combining material informatics, edge intelligence and distributed artificial intelligence, this study introduces a Federated Learning (FL) framework to design recyclable thermoplastic graphene composites at multiple scales sustainably. The proposed framework …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Downhill Zagreb Polynomials of Graphs
Abstract: AbstractIn a number of applied and theoretical environments, graph polynomials and their roots have emerged. To deeply explore counting sequences connected to different graph parameters, graph polynomials have been introduced as generating polynomials. In addition, there has been a great deal of recent interest in graph polynomials. The first, second and forgotten downhill Zagreb indices are defined as and . In this paper, we define and study the first, second …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 7, Issue 3, 2020 · pp. 15–26 Read article
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Synthesis and study of Bio-conjugated graphene
Abstract: Currently many research organizations are studying on graphene and its structure. The poor dispersion quality of graphene has been reported by many researchers. It is a disadvantage of graphene to improve its dispersion quality carboxylation of graphene is necessary (attaching carbon species on the edges and the basal plane of garphene).It also helps for further attachment. It may reduce the conductivity but it improves the dispersion quality. Carboxylic graphene can …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 3, Issue 3, 2013 · pp. 21–26 Read article
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Investigating the Functionality of Graphene Fiber Reinforced Plastic (GFRP) Laminates
Abstract: The increased adaptability and usefulness of glass-fiber reinforced polymer has led to its widespread adoption. GFRP laminates can be improved by including filler materials to improve their already impressive set of qualities. The demand for the research and development of advanced composites with enhanced properties has never been greater, and this is especially true for composites that are lightweight but have enhanced tensile and flexural qualities. An example of a …
Published in Journal of Polymer & Composites · Vol. 11, Issue 6, 2023 · pp. 1–9 Read article
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Performance Analysis of Graphene Reinforced Sug-ar-Alcohol Based PCM for Thermal Energy Storage System
Abstract: The thermal-conductivity of the Phase Change Materials (PCMs) of thermal heat storage systems is improved by distributing nano-particles in the basic PCM for a faster rate of heat transfer. During the charging and discharging procedures, the heat transfer properties of the newly created Sugar-Alcohol based PCM dispersed with 1.0 wt% graphene nanoparticles in a shell and helical tube storage tank were examined. The helical tube configuration caused the melting and …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 133–147 Read article
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A Knowledge Graph Approach for Breast Cancer Diagnosis and Data Sharing Platform Implementation in the Context of Human Papillomavirus Infection
Abstract: Background: Breast cancer remains among the most prevalent malignancies in women worldwide, and effective diagnosis and data integration continue to challenge clinical practice. Diagnostic reports from mammography and ultrasound contain rich clinical information that is often under-utilised due to heterogeneous formats and limited data-sharing infrastructure. In the context of human papillomavirus (HPV) infection, which may influence oncogenic pathways and data complexity, advanced computational methods offer new solutions to this problem. …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 15, Issue 1, 2026 Read article
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Fabrication and Mechanical Characterization of Hybrid Natural Fiber Reinforced Composites using Ferromagnetic and Graphite Fillers
Abstract: The past few years have seen a lot of interest in the creation of hybrid natural fiber composites because of their lightweight properties, environmental friendliness and their potential use in structures. The hybrid composite laminates in the current study were produced by the hand lay-up process by blending the natural fibers with the functional filler materials. Three types of composite structures were created and these are Natural Composite Material (NCM), …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 498–511 Read article
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Synthesis of a Re-Usable HCl Treated Graphite Catalyst for Biodiesel Production from Pongamia Pinnata Oil and DMC
Abstract: AbstractThe aim of this research was to investigate the biodiesel from Pongamia pinnata oil with HCl treated graphite catalyst via transesterification. New biodiesel formation process was designed using P. pinnata oil and HCl treated graphite catalyst. Graphite powder was treated with HCl and HCl treated graphite was used as a catalyst. 95% biodiesel yield was obtained with operating conditions, including P. pinnata oil to dimethyl carbonate ratio (1:3), catalyst concentration …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 8, Issue 2, 2018 · pp. 30–37 Read article
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Graphene for Next Generation Green Electronics-A Sustainable Future
Abstract: The amount of e-waste or electronic waste is increasing worldwide due to the rapid development of the electronics industry and the profound usage of electronic products although it has enormous detrimental effects on the environment and humans. It has become an evolving problem due to a lack of knowledge and infrastructure for e-waste disposal and recovery. Researchers around the world are in search of environment-friendly, sustainable ‘green electronic’ material which …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 12, Issue 3, 2022 · pp. 35–41 Read article
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Self-Healing Graphene–Polymer Nanocomposite Encapsulation Layers for Ultra-Stable Perovskite Photovoltaic Modules under Extreme Environmental Conditions
Abstract: The recent trend is that perovskite photovoltaic modules are vulnerable to moisture, oxygen, thermal cycle, UV, and mechanical stress, which seriously affect the working stability of the modules under harsh environmental conditions, thereby hindering the rapid commercialization. In this study, a new self-healing graphene–polymer nanocomposite encapsulant layer is proposed to improve the durability and reliability of perovskite solar modules in extreme climates. The encapsulation system combines functionalized graphene nanosheets into …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Comparing Graphical and Algebraic Methods in Solving Linear Programming Problems
Abstract: Linear Programming (LP) is a fundamental optimization technique widely employed across engineering, manufacturing, transportation, finance, healthcare, and other industrial sectors to support effective resource allocation and informed decision- making. Among the various solution techniques, the graphical and algebraic methods remain the two most fundamental approaches, each offering distinct advantages depending on the complexity and dimensionality of the optimization problem. This paper presents a comprehensive comparative study of these methods by …
Published in Journal of Production Research & Management · Vol. 16, Issue 2, 2026 · pp. 33–43 Read article
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Chromatic Curling Number of Certain Derived Graphs
Abstract: The curling number of a graph G is dened as the number of times an element in the degree sequence of G appears the maximum number of times. Graph colouring is an assignment of colours, labels or weights to the vertices or edges of a graph. A colouring C of colours c1, c2,..., cl is said to be a minimum parameter colouring if C consists of minimum number of colours …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 5, Issue 1, 2018 · pp. 10–20 Read article