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640 articles for “domain”
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Parameter Identification at Large Scale through Solution of the Inverse Problem
Abstract: The fundamental benefit of groundwater modeling is to predict the response of the aquifer to the proposed man-mad excitation (e.g., pumping artificial recharge). Inverse analysis is frequently used for large-scale real-world problems, where the number of unknown parameters that will fully represent the heterogeneity becomes very large and the inverse analysis solution becomes ill-posed, to overcome this problem, in the present paper the study domain is divided into zones connected …
Published in Recent Trends in Civil Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 25–39 Read article
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Parallel Search Engines for Topology Optimization of an Arch Truss using Evolutionary Algorithms
Abstract: The use of parallel search engines to solve NP-Hard problems is increasingly in use with the computational power becoming more economical. The objective of this paper is to effectively explore and exploit the search domain to identify the optimal point using two search engines in parallel. This paper proves that intensification and diversification can be performed effectively using two search engines in parallel. The use of two search engines in …
Published in Recent Trends in Civil Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 22–27 Read article
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Design and Analysis of Water Distribution Network in Airoli City to Digha Village
Abstract: Water is a fundamental component expected for the food of life. Interest in drinking is expanding on a ceaseless premise with the related expanding populace. In India, the organic market of water is expanding and prevalent. Water dissemination network frameworks are intended to distribute water from a source in a sufficient amount, quality, and at good strain to every individual purchaser. The water circulation framework implies any mix of lines, …
Published in Recent Trends in Civil Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 45–54 Read article
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Signal Identification of Differential STBC-OFDM System
Abstract: AbstractBlind recognition of communication parameters is a research topic of high importance for both military and civilian communication systems. Signal identification has emerged as an enabling technology for intelligent wireless communication systems with applications in military and commercial fields. Several identification algorithms are proposed for multiple antenna (MA) systems with multicarrier (MC) transmissions. The previously investigations are mostly limited to space-time block code (STBC) systems and space frequency block coding …
Published in Recent Trends in Electronics Communication Systems · Vol. 5, Issue 2, 2018 · pp. 21–27 Read article
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Experimentation and two-dimensional fluid flow simulation through external gear pump
Abstract: The investigation aims to perform the experimentation on the existing set up of the gear pump test rig and its simulation. In the first part of study, the different parameters are set and observed. Using these values calculations are performed to get the other experimental results. In the second part, two-dimensional fluid flow simulation was done flowing through the external gear pump and compares its flow rate and thus efficiency …
Published in Recent Trends in Fluid Mechanics · Vol. 7, Issue 3, 2020 · pp. 15–23 Read article
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Exploring Abrasive Flow Finishing of 3D Printed Mesoscale Passage
Abstract: 3-D printed parts and components have gained wide applicability which continues to increase day by day. However, due to the very nature of 3-D printing process, i.e. layer additions, outer surfaces are subject to poor finishing. Finishing 3-D printed parts is thus a necessity if they are to be used for prototyping or functional purpose. But, finishing remains a challenge, especially if the part contains passages that lie within and …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 1, 2021 · pp. 45–51 Read article
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Composition of Ideal Fluid Flows Around Cylinder Using Bilinear Transformation
Abstract: Advent of conformal mapping eases to model a flow in sought-after domain without trade- off between laws of fluid mechanics and the theory of complex valued-functions. The far-reaching properties manifested by conformal mapping discern and facilitate solution of large class of two-dimensional flow problems. Bilinear transformation is amidst the conformal mappings. The properties, mapping a circular boundary onto horizontal line and composition of bilinear transformations is again a bilinear transformation …
Published in Recent Trends in Fluid Mechanics · Vol. 10, Issue 1, 2023 · pp. 31–38 Read article
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Gesture Connect Gesture Recognition for Sign Language
Abstract: A natural method of human-computer interaction, hand gesture recognition is a hot topic in computer vision and machine learning research. This field offers a wide range of potential applications, allowing users to interact with robots and system interfaces in a more straightforward and natural way without requiring additional hardware. One of the primary goals of gesture recognition research is to create systems that can identify gestures and use them to …
Published in Recent Trends in Sensor Research & Technology · Vol. 10, Issue 2, 2023 · pp. 32–41 Read article
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New Solution Technique for the Frequency and Transient Response of Transformer Windings with All Inter-Turn Mutual Inductances and Capacitances Included
Abstract: This paper addresses the frequency response, the identification of the resonance frequencies as well as the transient response of transformer windings taking into account all possible inter-turn mutual inductances and capacitances. The mutual inductances and capacitances between any turn to all other turns, i.e. not only the immediately adjacent ones, are considered. The analysis starts with writing the set of simultaneous differential equations relating the currents and voltages within the …
Published in Trends in Electrical Engineering · Vol. 3, Issue 1, 2013 · pp. 22–41 Read article
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The Transient Performance of Power Line Towers
Abstract: This paper presents a refined approach to the transient analysis of power line towers. Each section of the tower’s steel structure is accurately modeled as a non-uniform transmission line. Among other features, an efficient representation of the towers’ cross-arms as open-ended non-uniform lines and their subsequent approximation by lumped capacitors will be explored. Furthermore, the error introduced by neglecting the presence of the cross-arms, as well as the effect of …
Published in Trends in Electrical Engineering · Vol. 3, Issue 2, 2013 · pp. 20–28 Read article
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New Solution Technique for the Frequency and Transient Response of Transformer Windings with All Inter-Turn Mutual Inductances and Capacitances Included
Abstract: This paper addresses the frequency response, the identification of the resonance frequencies as well as the transient response of transformer windings taking into account all possible inter-turn mutual inductances and capacitances. The mutual inductances and capacitances between any turn to all other turns, i.e., not only the immediately adjacent ones, are considered. The analysis starts with writing the set of simultaneous differential equations relating the currents and voltages within the …
Published in Trends in Electrical Engineering · Vol. 3, Issue 3, 2013 · pp. 29–50 Read article
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An Efficient General Distributed Parameter Approach to the Line Transient Analysis using Interpolating Function
Abstract: This paper presents an efficient technique for the time-domain determination of the electromagnetic transients along general transmission lines. The lines can be uniform or nonuniform. The technique is also applicable to line models incorporating dependent sources, such as the distributed voltage-dependent current sources usually adopted for simulating the line corona. The suggested approach is based on the concept of the interpolating functions for the numerical solution of just two simultaneous …
Published in Trends in Electrical Engineering · Vol. 3, Issue 3, 2013 · pp. 1–21 Read article
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Back-Propagation Neural Network Based Speaker Identification Under Noise Distortion
Abstract: The aim of this paper is to evaluate the performance of the proposed speaker identification system where Wiener filtering technique has been used to eliminate the background white Gaussian noises and linear discriminant analysis has been used to reduce the dimension of the speech features. Since the audio signal captures more environmental noises than other biometrics modalities, the main emphasis of this paper is to analyze the problem domains of …
Published in Trends in Electrical Engineering · Vol. 5, Issue 2, 2015 · pp. 1–6 Read article
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Automatic Language Identification using Basic Signal Class
Abstract: Automatic language identification (ASLID) is a problem of identifying an unknown language from spoken utterance by a computer. A segmental approach to ASLID based on the assumption that the acoustic structure of languages can be estimated by segmenting speech into three basic classes of speech signals. This paper presents a procedure of ASLID with the details of methodology and the results without recognizing the words, but the lengths segments of …
Published in Trends in Electrical Engineering · Vol. 9, Issue 2, 2019 · pp. 12–19 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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A Review on Behavior of Heat Transfer in the Fluid in Shell and Tube Type Heat Exchanger
Abstract: The primary objective of this literature analysis is to examine the many applications of "Computational Fluid Dynamics (CFD)" within the domain of heat exchangers. "Computational Fluid Dynamics (CFD)" has been utilized in several investigations relating to heat exchangers, including fluid flow maldistribution, fouling, pressure drop, and thermal analysis during the stages of design and optimization. The simulations conducted demonstrate that the solutions generated from CFD are generally within the permissible …
Published in Trends in Machine design · Vol. 10, Issue 3, 2023 · pp. 1–7 Read article
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Utilizing Machine Learning to Predict the Dimensional Variation of Shafts Printed using Fused Deposition Modeling
Abstract: With the onset of the fourth industrial paradigm, additive manufacturing techniques are coming to the forefront in mechanical engineering domain. The technological burgeoning of additive manufacturing, particularly 3-D printing, has observed substantial growth in rapid prototyping, functional part manufacturing, and tooling because it has significantly reduced the manufacturing costs and processing time. One of the most commonly used techniques of additive manufacturing is Fused Deposition Modelling (FDM), examining and controlling …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 41–46 Read article
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Cutting-Edge Brilliance: Applications of Diamond Coating in Precision Machining
Abstract: Diamond coating technology is used to deposit a uniform layer of diamond on almost any type of material ranging from glass and plastic to metals. The process involves utilizing atmospheric carbon dioxide as the carbon source and exposing it to a series of laser beams. With the ease of applying paint on a brush, this laser-assisted process produces pure diamond and bonds it to a material's surface. This study examines …
Published in Trends in Mechanical Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 18–22 Read article
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Design of Ultrafast Optical Full Subtractor Link and Performance Analysis
Abstract: AbstractThis article illustrates proposed optical full subtractor schematic through SOA-MZI, yield borrow and difference outputs concurrently. The objective has been accomplished by exploiting nonlinear attributes with SOA. Numerical simulations have been executed and craving optical subtractor output waveforms have been verified at 100 Gbps data rate. Optimization criterion for the design’s performance measurement is taken as Q-factor and the extinction ratio factor. The subtractor output difference and borrow outcomes with …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 3, 2017 · pp. 7–20 Read article
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An Analysis of Optical Transmission System using Fiber Bragg Grating (FBG) with Power Optimization and Dispersion Compensation
Abstract: AbstractThe Fiber Bragg Grating (FBG) is a low cost filter for wavelength selection and also has low insertion loss. We know that Dispersion Compensation (DC) and Power Optimization (PO) are one of the most important parameters of the optical communication system. In this proposed communication model, dispersion compensation has been achieved and also we optimized almost same power at the receiver end, also we have calculated output power for different …
Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 2, 2015 · pp. 1–5 Read article