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812 articles for “Sierpi´cski graph”
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Enhanced Graphical Password System with Intelligent User Identification Model
Abstract: Data and authorization security needed everywhere. In case dealing with huge number of data in a cloud server, secured logging is must. This is due to the fact that cloud servers are freely accessible from anywhere at any time. As a result, data should be well-protected against intruders, hackers, and unauthorized users. Furthermore, because log data files frequently contain sensitive information, log records' secrecy and privacy are equally vital. At …
Published in Trends in Opto-electro & Optical Communication · Vol. 11, Issue 3, 2021 · pp. 23–29 Read article
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Workability Behavior of Copper–Tungsten and Graphite Composites
Abstract: Workability is a measure of deformation that powder metallurgy materials can withstand prior to fracture occurring in the formation or upsetting process. Nowadays, copper-based sintered composites produced by powder metallurgy processes are widely used in bearings and bushes. Also composites based on copper–tungsten (Cu–W) composite containing a solid lubricant (Graphite) have been developed as self-lubricating materials under the conditions of load, atmosphere and temperature. However, it should be noted that …
Published in Trends in Machine design · Vol. 1, Issue 2, 2014 · pp. 42–52 Read article
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Factors Essential to Enhance Education Quality: A Case Study of Graphic Era University
Abstract: In this study, author has identified the factors to enhance the service quality in the higher education sector at Graphic Era University. In this study, author has also described the methodology to test the most important factors out of many factors that are used to determine the quality of educational institute using qualitative and quantitative studies that under five heads teaching methodology, environmental change in study factor, disciplinary measures, placement …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 8, Issue 2, 2018 · pp. 56–62 Read article
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Emerging Trends in Data Structures for Modern Machine Learning Applications
Abstract: In the realm of machine learning, data structures play a pivotal role in facilitating efficient data manipulation, storage, and retrieval, thereby significantly impacting the performance and scalability of machine learning algorithms. In recent years, the field of machine learning has witnessed the emergence of novel data structures tailored to address scalability and efficiency challenges inherent in handling large-scale and high-dimensional data. This study provides a look at the data preprocessing, …
Published in International Journal of Data Structure Studies · Vol. 2, Issue 1, 2024 · pp. 1–7 Read article
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Thermally Regulated Polymer-PCM Composites for Efficient Solar Energy Harvesting and Storage
Abstract: This study investigates the development of high-performance; shape-stabilized polymer composites infused with phase change materials (PCMs) for thermal energy storage in solar energy applications. Polyethylene glycol (PEG-6000) was employed as the core PCM due to its high latent heat and suitable melting point, while high-density polyethylene (HDPE) served as the supporting polymer matrix to provide structural stability. One of the primary limitations of PEG-based PCMs is their inherently low thermal …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 153–163 Read article
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Experimental Investigation on the Impact of Graphene on Fly Ash–Based Portland Pozzolana Cement Concrete
Abstract: This study presents a detailed investigation into the influence of incorporating phase change materials (PCMs) on the mechanical properties of cement mortar, with particular emphasis on compressive and flexural strength at various curing ages. Both organic and inorganic PCMs were utilized as partial replacements for cement at proportions of 5%, 10%, and 15% to evaluate their performance. The experimental results reveal a clear distinction in behavior between the two categories …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1865–1871 Read article
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Graphene–Perovskite Hybrid Opto-Electronic Modulators for Ultra-Low Power Optical Communication
Abstract: This paper proposes a novel self-adaptive neuromorphic opto-electronic transceiver architecture designed to enhance the intelligence, adaptability, and efficiency of next-generation optical communication networks. The proposed system integrates neuromorphic computing principles with photonic signal processing to enable real-time learning, dynamic resource allocation, and autonomous compensation of channel impairments such as dispersion, nonlinearities, and noise. Unlike conventional transceivers, the developed model employs spiking neural networks embedded within opto-electronic circuits to mimic biological …
Published in Trends in Opto-electro & Optical Communication · Vol. 16, Issue 1, 2026 · pp. 41–52 Read article
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Polymer-Mediated Electron Transfer in Eco-Friendly P3HT–rGO Nanocomposites for Optoelectronic Applications
Abstract: Conducting polymer–graphene hybrid nanocomposites have emerged as promising materials for next-generation optoelectronic applications owing to their solution processability, tunable interfacial properties, and mechanical flexibility. Recent studies have highlighted the importance of graphene–polymer hybrid systems in enhancing charge transport pathways, exciton dissociation efficiency, and interfacial stability in organic optoelectronic devices. Despite these advantages, a key challenge remains the efficient production of individual graphene sheets through the reduction of graphene oxide using …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 413–423 Read article
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Enhancing Power Conversion Efficiency in Tandem Solar Cells with Temporal Dynamic Graph Neural Network
Abstract: In modern homes, people want good comfort and also less electricity bill, so managing heating load and cooling load become very important. Heating Load (HL) and Cooling Load (CL) depend on many things like wall material, window size, sunlight, ventilation, and weather. Because of this many factors, calculation and optimization of HL and CL is little difficult and many time normal formulas give wrong or not perfect results. So in …
Published in Journal of Semiconductor Devices and Circuits · Vol. 13, Issue 2, 2026 · pp. 12–19 Read article
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Role of GO and rGO on the Structural Properties of PA6/PMMA Blend Nanocomposites
Abstract: To understand and assess the role of Graphene Oxide (GO) and reduced graphene oxide (rGO) in the PA6/PMMA blend, nanocomposites, the PA6/PMMA (50:50 wt%) blend-based nanocomposites were prepare by loading different wt% of GO and rGO (1wt% and 3wt%), through twin screw melt extrusion followed by injection moulding technique. Different compositions of the nanocomposites were prepared using melt mixed method at 2300C by applying a rotational torque 50 N. All …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 1–10 Read article
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Characterizing the Existence of P4
Abstract: In a graph G = (V, E) P4 denotes a path of length 4 vertices <v1, v2, v3, v4> such that there is no edge between either <v1, v3> or <v2, v4>. This exists either in graph G = (V, E) or its complement or both for which both G and the complement Gc are connected. In this article we give a proof for this property.
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 1, Issue 3, 2014 · pp. 39–41 Read article
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Biological Network Clustering using Distance and Graphical Network Algorithm
Abstract: Clustering is a process of grouping together similar data items together based on certain percentage of similarity or certain amount of threshold value. The study of the protein-protein interaction is an important task as this is necessary in order to identify how the proteins are grouped together and how they interact with each other. This process of studying or identifying the protein-protein interaction so far done anciently is followed by …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 5, Issue 1, 2015 · pp. 6–14 Read article
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Machining in Electrical Discharge Machining (EDM) using Graphite Electrode
Abstract: In modern industry demands of titanium alloy is increasing day by day. Because it has many several characteristics such as low thermal conductivity, low elastic modulus. Application of Titanium and its alloys now a day in different field such as aerospace industry sports car etc. Therefore, it is replacing different metal such as aluminium in many applications. It has high corrosion resistance and high strength – to – weight ratio …
Published in Journal of Aerospace Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 39–47 Read article
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Electrical Discharge Machining (EDM) ON Titanium alloy workpiece using graphite
Abstract: In modern industry demands of titanium alloy is increasing day by day. Because it has many several characteristics such as low thermal conductivity, low elastic modulus. Application of Titanium and its alloys now a day in different field such as aerospace industry sports car etc. Therefore it is replacing different metal such as aluminium in many applications .It has high corrosion resistance and high strength – to – weight ratio …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 10, Issue 3, 2021 · pp. 19–27 Read article
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Unravelling the Influence of Dimensions on the Thermoelectric Properties of AHEGNR
Abstract: The thermoelectric properties of hydrogenated edge semiconductor graphene nanoribbons (GNRs) have thus far been explored in detail. The effects of varying the sizes of zigzag hydrogenated edge graphene nanoribbons (ZHEGNRs) and armchair hydrogenated edge graphene nanoribbons (AHEGNRs) in terms of their properties were investigated in this study. This was achieved via the control of the graphene nanoribbon dimensions i.e., width and length by utilizing density functional theory in Quantum Espresso, …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 14, Issue 3, 2024 · pp. 45–51 Read article
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Sustainable Carbon Materials for Catalysis, Energy Conversion, and Environmental Remediation
Abstract: Among the most ancient and adaptable materials used by humans, carbon finds use in a wide range of industries, including electronics, energy production, medicine, water purification, air filtration, and catalysis. Among them, activated carbon's highly developed microporous structure, remarkably large specific surface area, and adjustable surface functions have drawn a great deal of attention from both science and industry. Activated carbon materials have been widely used as molecular sieves, adsorbents …
Published in Emerging Trends in Chemical Engineering · Vol. 13, Issue 2, 2026 · pp. 47–52 Read article
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Investigations on Microbial Growth Inhibition by Carbon Based Nanomaterials
Abstract: We have studied the antimicrobial activity of carbon-based nanomaterials e.g. graphene oxide with their mechanism of action. We have synthesized the graphene oxide using modified Hummer’s method from high purity graphite precursors. The microstructures and morphology of graphene-based materials have been studied using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). The specific surface area and porosity analysis of graphene oxide are analyzed using …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 3, 2018 · pp. 36–43 Read article
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Investigation of Mechanical Properties in Ductile Iron with Alloyed and Unalloyed at Time and Temperature on Austempering
Abstract: Due to the combination of its numerous excellent mechanical qualities, the flexible iron has been used more and more since its invention in 1948. To develop significantly improved characteristics, the unnecessary investigation is being done. The most recent development in the field of flexible iron, or SG iron, is Austempererd malleable iron. At four different temperatures, two different types of spheroidal graphite (SG) cast iron samples with varying copper weight …
Published in Journal of Polymer & Composites · Vol. 11, Issue 9, 2023 · pp. 1–9 Read article
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Bioinspired Nanocomposite Bone Pins: Fabrication, Evaluation, and Suitability for Orthopedic Implant Applications
Abstract: Bone tissue engineering (BTE) requires scaffolds that mimic bone’s mineral–organic composition, offering mechanical strength, bioactivity, and degradation rates compatible with regeneration. Conventional metallic implants face corrosion and toxic ion release risks, while ceramics like hydroxyapatite (HAp) are bioactive but brittle. This study reports a multifunctional hybrid scaffold combining HAp for osteoconductivity; polycaprolactone (PCL) and collagen for flexibility and biocompatibility with sodium citrate for nanoparticle dispersion, ferrocene (Fc) for catalytic bioactivity; …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 526–540 Read article
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A Steady on Quality Update in New Austrian Tunneling Method (NATM) Technology for Safe Underground Shortest Path in Road Transportation Networks
Abstract: Metro train project is a combination of many related engineering fields as civil engineering, computer engineering, mechanical engineering and electrical engineering etc. But here, we discus about civil engineering and computer engineering related project report. Firstly we start from railway track/road. A railway track network can be considered as a graph (a graph is an ordered pair G=(V, E) comprising a set V of vertices or nodes or points together …
Published in Journal of Open Source Developments · Vol. 3, Issue 2, 2016 · pp. 20–26 Read article