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756 articles for “Matrix”
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A Literature Review on Electrical Nanogrids
Abstract: The unified power grid bears significant weight when shoppers expect a continuous dependable power supply, a decrease in fossil fuel by-products, expanded efficiency inside the public matrix, and power provided to distant networks. As assumptions increment, it turns into the assignment of force frameworks examination and plans to foster new constructions to satisfy these needs. This has prompted options being looked for incorporated power production, which is inclined to blackouts …
Published in Trends in Electrical Engineering · Vol. 12, Issue 3, 2022 · pp. 1–11 Read article
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STUDY ON EFFECT OF END MILLING PARAMETERS ON CUTTING FORCES USING RESPONSE SURFACE METHOD
Abstract: Now a day’s research over improvement of surface roughness on mechanical elements has become quite significant in the operational and aesthetical point of view. To enhance accuracy and precision, manufacturing firms are adopting automated systems in order to achieve manufacturing excellence. In the present work the effect of various process parameters like spindle speed, feed and cutting fluid composition on cutting forces in End milling process is investigated by using …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 62–72 Read article
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EFFECT OF DRILING PARAMETERS ON HOLE POSITION TOLERANCES
Abstract: Drilling is one of the important machining process widely used in all type of industry. In aerospace industry the drill hole dimensions are very critical and one has to control the drilling parameters to maintain the desired hole characteristics. In the present project work, focus is made to study the effect of drilling parameters namely spindle speed, feed and drill diameter on Cylindricity, Circularity, Concentricity along X axis and Concentricity …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 51–61 Read article
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Analysis and Optimization of End Milling Machining Parameters for Polypropylene composite using Taguchi based GRA
Abstract: This paper offerings the effect of machining parameters on Surface roughness (Ra & Rz) and Machining time during end milling of polypropylene material on CNC milling machine at different levels. In this effort, the machining parameters namely milling speed (MS), feed (Feed) and depth of cut (DOC) were designed using Taguchi L16 experimental design matrix. The impact of all the input parameters on the response parameters (surface roughness and machining …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 91–100 Read article
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Structural Studies on Glass Fiber Reinforced Poly-styrene Composites
Abstract: Polymers are used in various industries and majorly in aerospace and automobile industry where in fuel efficiency is a big challenge. Polymers are lightweight hence by volume they make up 50% of a new vehicle but by weight it is less than 10%. Current economic and environmental concerns make the creation of more fuel-efficient cars a top priority in the automotive industry. Hence the study of these polymers becomes very …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 32–38 Read article
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Electrical Tunability of Transmission Spectrum in 1D Ternary Photonic Band Gap Structures
Abstract: AbstractElectrical tunability of transmission spectrum in 1D Ternary Photonic Band Gap (PBG) structures is studied in this paper. The electro-optic effect can be used to change the refractive index of the constituent material layers of the structure to tune the transmission spectrum. Use of electrical tuning in PBG structure offers the advantages of fast tuning speed, ease of computer controllability etc. The electro-optic effect based tuning will be faster than …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 2, 2017 · pp. 51–56 Read article
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Assessment of the Contribution of Metro Rail Systems in the Reduction of CO2 Emissions in the Transportation System: Application in Rio De Janeiro Metro
Abstract: This work aims to analyze the emission of CO2 in the operation of metro rail passenger transportation systems powered by electricity, confronting it with the emission of other means of transportation which would be used if that system was not available. We propose a methodology to quantify the reduction of CO2 emissions which is provided by the metro rail systems and its application, in a conservative manner, to Rio de …
Published in Trends in Transport Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 9–19 Read article
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Direction of Arrival Estimation in Mobile Communication Systems using MUSIC Algorithm
Abstract: AbstractAdaptive antenna arrays use multiple antenna elements to form directional patterns in order to improve the performance of wireless communication systems. The antenna arrays also have the ability to estimate the Direction-of-Arrival (DoA) of the signals received from the desired transmitters as well as the directions of interference signals. The results of DoA estimation are then used to adjust the weights of the adaptive Multi-Input Multi-Output (MIMO) antenna so that …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 2, 2013 · pp. 20–27 Read article
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Dimensionality Reduction using Eigenfaces and Fisherfaces for Face Recognition Applications using Kernel LMS Algorithm
Abstract: AbstractFace recognition is an intricate numerical technology in computer systems that can support recognition of human faces using methods such as principal component analysis (PCA), linear discriminant analysis (LDA), etc. by comparing the given facial uniqueness with the already available face database. PCA and LDA are classical feature extraction and data representation techniques used in face recognition algorithm involving unsupervised statistical methods. The 2-D facial image can be transformed into …
Published in Journal of Computer Technology & Applications · Vol. 6, Issue 2, 2015 · pp. 29–55 Read article
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Comparative Evaluation of Shear Bond Strength of Three Different Generations of Adhesive to Dentin: An In Vitro Study
Abstract: The clinical use of resin composites has expanded considerably over the past few years due to increased esthetic demands by patients, new improved formulations, and simplification of bonding procedures. Novel resin composites benefits from improved filler technology and modifications of the organic matrix for a greater degree of polymerization .Improved marginal sealing around composites has reduced the frequency of unfavorable postoperative responses. The sealing ability of a composite restoration is …
Published in Research and Reviews: A Journal of Dentistry · Vol. 5, Issue 2, 2014 · pp. 9–17 Read article
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Impressions in Fixed Partial Dentures: A Review
Abstract: Flawless impression is the most critical of simplicities in indirect restorative dentistry. Pre-requisite for successful fixed partial denture is an accurate three dimensional facsimile of the prepared teeth. Knowledge of various impression techniques, nature and behavioral properties of the available impression materials is mandatory for a good impression. Today the techniques and materials exceed our needs in terms of accuracy and properties. Yet, a flawed and imperfect impression is not …
Published in Research and Reviews: A Journal of Dentistry · Vol. 6, Issue 1, 2015 · pp. 23–32 Read article
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Issues of Indian Rural Women with Disability in Assessing Health Care Services: Social Work Perspective
Abstract: This study focuses on rural women with disability, who are facing issues in the society with reference to education, health, livelihood, social inclusion and empowerment. The study was conducted in drought prone area were the above problems become multiple, Ashirwad Trust for the disabled provides CBR (Community-based rehabilitation) training to disabled person. WHO CBR (Community-based rehabilitation) matrix was modified for assessing education, health, livelihood, social inclusion and empowerment of the …
Published in Research and Reviews: A Journal of Health Professions · Vol. 8, Issue 3, 2018 · pp. 53s–56s Read article
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Pathogenesis, Immune Response and Vaccine Development in Amoebiasis
Abstract: Worldwide, approximately fifty million cases of invasive E histolytica disease occur each year and resulting in more than 100,000 deaths. It is the second leading cause of mortality due to a protozoan parasitic infection after malaria. Entamoeba histolytica infection is associated with considerable morbidity and mortality in the form of intestinal and extra-intestinal amoebiasis especially in developing countries. Recent molecular studies have conclusively proved that there are morphologically similar species …
Published in Research and Reviews : A Journal of Immunology · Vol. 5, Issue 3, 2015 · pp. 30–35 Read article
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Population Genetics and Diversity of Human Adenovirus in Two Tertiary Hospitals in Southern Nigeria
Abstract: The study of dynamic changes in genetic heterogeneity can shed light on the evolution of viruses because it is known that the genetic variety of viral populations within their hosts affects disease progression, treatment outcome, medication resistance, cell tropism, and transmission risk. Our study's primary goal is to identify trends in the genetic makeup and variety of human adenoviruses using samples taken from children who attend two distinct tertiary hospitals …
Published in Research and Reviews : A Journal of Immunology · Vol. 12, Issue 3, 2022 · pp. 37–44 Read article
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Hybrid Agro-Waste Reinforced PLA Smart Composites with Embedded NFC for Sustainable Lifecycle Monitoring
Abstract: The growing demand for sustainable engineering materials has accelerated the development of biodegradable polymer composites capable of combining structural performance with intelligent lifecycle management. In this study, a smart biodegradable agro-waste polymer composite reinforced with rice husk and sugarcane bagasse fibres was developed using a polylactic acid (PLA) matrix integrated with an embedded passive Near Field Communication (NFC) tag for digital traceability and circular economy applications. The composite containing 80 …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Effects of Fiber Hybridization on Tensile, Flexural, and Impact Strength of Hybrid Natural Fiber Epoxy Composites
Abstract: This study investigates the mechanical performance of epoxy composites reinforced with hemp, ramie, and flax fibers and evaluates the effect of fiber hybridization. Single-fiber composites were fabricated using hand lay-up followed by vacuum-bagging consolidation and compared with three hybrid systems: hemp–flax (HF), hemp–ramie (HR), and flax–ramie (FR). Tensile, flexural, and drop-weight impact properties were evaluated using standardized test procedures. Among the single-fiber composites, flax exhibited the highest tensile strength of …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 295–305 Read article
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Parametric Effect on the Mechanical Property of Extrusion-Based 3D-Printed Parts
Abstract: Material extrusion-based 3D printing, a prevalent and economical approach for producing complex geometries, heavily relies on acrylonitrile butadiene styrene due to its advantageous mechanical properties and dimensional stability. Nevertheless, the mechanical integrity of 3D-printed components is considerably impacted by process variables. This research investigates the implications of critical parameters – layer height (LH), infill percentage (IP), and infill pattern design (IPD) – on the tensile, compressive, and flexural strength of …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 160–170 Read article
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Artificial Intelligence for Polymer and Nanocomposite Materials: Performance Prediction, Manufacturing Optimization, and Future Perspectives
Abstract: The exceptional mechanical properties, design flexibility, and lightweight nature of polymer composite and nanocomposite materials make them indispensable in a wide range of applications, including aerospace, automotive, construction, biomedical, and energy sectors. The optimization of the strength, durability, and manufacturing efficiency of polymer composite and nanocomposite materials is highly challenging because their performance depends on matrix composition, reinforcement type, fiber or nanoparticle distribution, interfacial interactions, processing conditions, and environmental factors. …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Digital Twin Assisted Intelligent Prediction of Polymer Composite Degradation Under Environmental Exposure
Abstract: Polymer matrix composites (PMCs) deployed in aerospace, marine, automotive, and renewable-energy structures are continuously subjected to coupled environmental stressors — ultraviolet (UV) radiation, moisture ingress, thermal cycling, and mechanical loading — that progressively degrade their mechanical performance. Conventional accelerated ageing tests and empirical lifetime models are time-consuming, destructive, and poorly suited to in-service, asset-specific degradation forecasting. This paper proposes a Digital Twin (DT) assisted intelligent prediction framework that fuses a …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Polymeric Microfluidic Chips for Rapid Point-of-Care Diagnostic Testing
Abstract: Polymeric microfluidic chips have emerged as promising platforms for rapid point-of-care (POC) diagnostic testing by integrating sample preparation, fluid manipulation, biochemical reactions, and signal detection within compact and potentially low-cost devices. Their compatibility with materials such as polydimethylsiloxane (PDMS), polymethyl methacrylate (PMMA), cyclic olefin copolymer (COC), polystyrene (PS), polycarbonate (PC), and polymer–paper composites provide considerable flexibility in device design and manufacturing. Advances in soft lithography, injection moulding, hot embossing, laser …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article