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401 articles for “numerical techniques”
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Numerical Methods of Optimization: A Review
Abstract: Optimization is an approach to finding the best result under given conditions. Several difficulties are occurred with the optimization of large scale problem. This paper is a review of numerical method of optimization techniques. Here discussed about different methods of numerical optimization for linear and nonlinear constrained and unconstrained system problem. Here we discussed about linear programing, integer programing, quadratic programing and nonlinear programing. The review is genera in nature, …
Published in Journal of Control & Instrumentation · Vol. 12, Issue 2, 2021 · pp. 19–25 Read article
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Hand-Writing Recognition Using Structural, Statistical Features
Abstract: One of the very crucial challenges in pattern recognition operations is handwriting recognition, often known as handwritten number recognition. The processing of bank checks, the sorting of postal mail, the entry of data into forms, etc. are all procedures involving number recognition. The ability to create an efficient algorithm that can retrieve handwritten integers submitted by drug users via a scanner, tablet, and other digital gadgets is at the core …
Published in Journal of Electronic Design Technology · Vol. 14, Issue 1, 2023 · pp. 8–14 Read article
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A New Computational Method for Dust and Gas Dynamics in Protoplanetary Discs
Abstract: The simultaneous evolution of dust and gas in protoplanetary discs regulates essential events in planet formation, such as dust accumulation, migration, and the initiation of gravitational instabilities. Nevertheless, precisely modelling this interaction continues to provide a significant computing problem owing to the extensive variety of spatial and temporal scales involved. In this study, we introduce an innovative computational framework for simulating dust-gas dynamics in protoplanetary discs, integrating a two-fluid hydrodynamical …
Published in International Journal of Universe · Vol. 1, Issue 2, 2025 · pp. 35–46 Read article
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Survey of Techniques for Clustering and Classification of ECG using WEKA
Abstract: ECG analysis can be done for automatic detection of abnormality in cardiac activity. This can be helpful in generating alert for saving a precious life. Various techniques have been proposed in literature for feature detection and classification such as; fuzzy logic methods, artificial neural networks (ANN), and support vector machines (SVM), wavelet transform, Hilbert transform, etc. Recently, numerous researches and techniques have been developed for analyzing the ECG signal on …
Published in Journal of Microcontroller Engineering and Applications · Vol. 3, Issue 2, 2016 · pp. 14–19 Read article
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High Strength Bolt Tightening and Verification Techniques for Steel Connections: In-Depth Study and National Survey
Abstract: The current means and methods of verifying that high strength bolts have been properly tightened is very laborious and time consuming. In some cases, the techniques require special equipment and in other cases the verification itself may be somewhat subjective. While some commercially available verification techniques do exist, there are drawbacks such as being costly, time-consuming, and impractical to use in the field. The main objectives of this project were …
Published in Journal of Construction Engineering, Technology & Management · Vol. 12, Issue 1, 2022 Read article
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A Comprehensive Review on COVID-19 Evolution and Development
Abstract: The emerging pandemic causing flu-like symptoms in patients is caused by the novel Coronavirus that was previously called 2019-nCoV. The mutated gene of SARS-CoV was transformed to SARS-CoV-2 in animals and further transmitted to humans in the month of December 2019 in Wuhan city of China. Eventually, the novel coronavirus spread all around the globe as a highly contagious disease. COVID-19 (the illness caused by coronavirus) has affected 213 countries …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 11, Issue 1, 2021 Read article
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Numerical Simulation of Transient Free Convection in a Rectangular Cavity Filled with Porous Material Using Finite Element Formulations
Abstract: In this study, the finite element method is used to quantitatively explore transient free convection in porous cavities in order to understand the flow characteristics and heat conduction processes in the square cavities. In comparison to an uniform temperature gradient, the left wall is swiftly heated and the right wall is allowed to cool to a specific temperature. The horizontal walls are insulated on both sides. Dimensionless representations of the …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 1–10 Read article
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Green Hydrogen Revolution: Technological Developments and Environmental Evaluations
Abstract: As a major fuel source for the future, hydrogen energy has received great support from the public, government, and business community. Two significant barriers to cleaning hydrogen commercialization are the high cost of production and the slow expansion of the infrastructure. Numerous hydrogen production techniques are classified using color codes; the most popular option is green hydrogen, which is produced using sustainable resources like solar and wind energy. Green hydrogen …
Published in Journal of Nuclear Engineering & Technology · Vol. 14, Issue 3, 2024 · pp. 37–44 Read article
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Advancing Healthcare Systems: A Machine Learning Approach to Multi-Disease Prediction
Abstract: The integration of machine learning algorithms in healthcare has revolutionized the way we approach disease prediction and diagnosis. An attempt to employ machine learning techniques to forecast numerous diseases is presented in this study. A diverse dataset containing patient records, medical history, and relevant features for various diseases was used to develop predictive models. Feature selection and normalization were among the preprocessing methods used to clean and prepare the data. …
Published in Journal of Electronic Design Technology · Vol. 16, Issue 1, 2025 · pp. 1–6 Read article
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Penetrative Thermomagnetic Convection in a Micropolar Ferrofluid Layer via Internal Heating
Abstract: Through the internal heating model thermomagnetic convection in a micropolar ferrofluid layer has been studied in the presence of a uniform vertical magnetic field. The rigid-isothermal boundaries are considered to be paramagnetic. The eigenvalue problem is solved numerically by Galerkin technique. The system stability is dependent on the various parameters like, dimensionless internal heat source strength Ns, magnetic parameter M1, the non-linearity of magnetization parameter M3, magnetic susceptibility χ, coupling …
Published in Journal of Experimental & Applied Mechanics · Vol. 11, Issue 2, 2020 · pp. 30–50 Read article
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Analysis of the Current Chopping and Breaker Stresses in Electric Power Networks
Abstract: This paper addresses the phenomenon of current chopping in electric power networks and the resulting circuit breaker transient recovery voltage. Its dependence on the pre-interruption loading conditions and the data of the power network is demonstrated. A Laplace-domain model with normalized network circuit parameters is adopted and a closed-form expression for the recovery voltage is derived. A numerical Laplace inversion technique using Mathematica is implemented in order to get its …
Published in Trends in Electrical Engineering · Vol. 11, Issue 2, 2021 · pp. 1–11 Read article
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Novel Architecture of an Intelligent Query Optimizer for Distributed Database in Cloud Environment
Abstract: Cloud computing delivers services like storage, databases, servers, networking, software and many more over the internet. Users get services from cloud providers and pay for it as per their usage. Database as a service DaaS is becoming a more popular service of cloud computing. Enterprises are transferring the storage data to cloud computing centre. Due to faster response and more reliability, distributed databases are used in cloud for storing and …
Published in Journal of Advanced Database Management & Systems · Vol. 5, Issue 2, 2018 · pp. 28–32 Read article
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Information, Knowledge, Education and Awareness for Sustainable Construction
Abstract: In the Developed World, there is already a move to adaptation as sustainable construction and’ green’ building design, and resource efficient approaches to design and construction take precedent. Worldwide, the construction and maintenance of the built environment, consumes some 40% of the planet’s materials and 30% of its energy. The irony of the situation is that the process is happening so fast without considering sustainable measures for the construction of …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 0, Issue 0, 2012 · pp. 87–90 Read article
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A Review of Fluid Flow and Heat Transfer in Impinging Jet System
Abstract: Fluid flow and heat transfer in impinging air jet are of great importance in different engineering applications. The review concentrates on heat transfer studies in impinging air jet based on Nozzle geometry, Reynolds No, Nozzle to plate spacing, Nozzles with arrays or mesh screens, porous plates, oblique angle, plate geometry, plate surfaces and cross flow of jet and incorporates two major parts namely, experimental and numerical methodologies. Experimental methodologies employ …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 1, 2015 · pp. 1–14 Read article
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Morphometric Analysis of Ansupa Lake, Odisha using GIS Technique
Abstract: Basin morphometry is a means of numerically analyzing or mathematically quantifying different aspects of a drainage basin. In the present study, morphometric analysis of the Ansupa lake Catchment has been carried using earth observation data and geographical information system (GIS) techniques. The morphometric parameters considered for analysis includes the linear, areal and relief aspects of the basin. The study has strengthened in understanding the hydrological, geological and geomorphological characteristics of …
Published in Journal of Remote Sensing & GIS · Vol. 5, Issue 2, 2014 · pp. 15–22 Read article
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Numerical Study of Heat Transfer in Six Channeled Dimpled Plate Heat Exchanger
Abstract: Heat transfer augmentation is the most important criteria in many chemical, pharmaceutical and mechanical industry sectors. Considering this factor into account, heat transfer surface modification is being done for heat transfer augmentation purpose. Making dimples on heat transfer surface is one such augmentation technique. This study presents numerical analysis of six channeled counter current dimpled plate heat exchanger, in which the relative depth (dimple depth to diameter ratio (δ/D)) is …
Published in Journal of Thermal Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 15–25 Read article
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The Onset of Rayleigh-Bénard-Marangoni Convection in a Ferromagnetic Fluid Layer
Abstract: This study examined the implications of magnetic boundary conditions, which are vertical in nature, on buoyancy and surface tension–driven ferrothermal convection (FTC) in a ferrofluid layer. While the upper surface is stress-free and susceptible to general thermal boundary issues, the bottom surface is stiff and insulating against temperature changes. The eigenvalue issue is solved analytically using the regular perturbation method and numerically using the Galerkin technique. According to analysis, raising …
Published in Journal of Experimental & Applied Mechanics · Vol. 16, Issue 1, 2025 · pp. 1–9 Read article
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Polymer Use in Soilless Farming Systems with A Comparative Study on Hydroponics and Aquaponics
Abstract: Hydroponics and aquaponics are innovative, sustainable agricultural methods that achieve high productivity with minimal land and water usage in controlled environments. Hydroponics, a technique that involves growing plants in nutrient-rich water solutions, utilizes various polymer-based components. Aquaponics, a symbiotic system combining aquaculture and hydroponics, also relies on polymer-based materials. These soilless techniques are crucial for producing vegetables, fruits, and other crops without relying on soil, allowing adaptability across various locations. …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 868–874 Read article
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Prediction and Optimization of Laser Transformation Hardening Parameters of Unalloyed Titanium Using RSM
Abstract: The optimization abilities in Design-expert software were used to optimize the laser phase transformation hardened bead profile parameters, i.e., to maximize hardened bead width (HBW) and to minimize, the heat input (HI), hardened depth (HD) and angle of entry of hardened bead profile (AEHB) in continuous wave (CW) Nd:YAG laser transformation hardening of unalloyed titanium sheet with 1.6 mm thickness. The mathematical models were developed from Response Surface Methodology (RSM) …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 1, 2015 · pp. 1–11 Read article
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RP-HPLC Analytical Method Development and Validation for Quantitative Estimation of Metoclopramide Hydrochloride in Solid Oral Formulations
Abstract: RP-HPLC technique formulated for the numerical assessment of Metoclopramide Hydrochloride in tablet formulation has been confirmed for reliability. A C18 column facilitated the chromatographic separation using a mobile phase comprising 60:40 (v/v) potassium dihydrogen phosphate buffer: meth anol mixture. Such method was used to detect, where the retained time was 6.78 minutes and Metoclo pramide Hydrochloride produced a clear peaked at 273 nm. Results were in agreement with ICH Q2 …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 12, Issue 2, 2025 · pp. 07–15 Read article