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929 articles for “Simulation and Modelling”
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Computational Approaches to Understanding Cellular Signaling Pathways
Abstract: Cellular signaling pathways are fundamental in regulating vital processes, such as cell growth, differentiation, and apoptosis. The intricate and interconnected nature of these signaling networks requires sophisticated methods for their analysis. Computational approaches, including mathematical modeling, network analysis, and machine learning, have revolutionized the way researchers analyze and simulate cellular signaling. This article provides a comprehensive overview of computational strategies employed to model signaling pathways, with a focus on integrating …
Published in International Journal of Cell Biology and Cellular Functions · Vol. 2, Issue 2, 2024 · pp. 8–13 Read article
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Load Based Speed Control Feature to Improve Fuel Economy of Vehicle
Abstract: Over the period of time fossil fuels are being priced exorbitantly and hence it will result into automotive industries have to develop engines with great energy saving potential. This is possible with the help of Load Based Speed Control Feature which is used to improve fuel economy of the vehicle. This feature gives the restriction over the traditional engine speed at lower gears depending on load, so driver gets encouraged …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 25–30 Read article
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Analysis of Six-Pulse Bridge Circuits Including Zener and Semiconductor Diodes Part One
Abstract: This paper addresses the analysis of electronic bridge circuits including Zener and/or semiconductor diodes. The analysis is based on recently suggested models for these diodes. A compact Mathematica code written in the Versions 7.0, 11.3 and 12.2 simulating a six-pulse rectifier bridge circuit is then derived and mathematically implemented. It investigates the time-domain transient and steady-state analysis of several representative case studies. In principle, the computer simulation can yield the …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 1, 2022 · pp. 14–22 Read article
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HEC-HMS Based Estimation of Rainfall Runoff Relationship in Central Highlands of Ethiopia, a Case Study in Beressa Watershed
Abstract: Rainfall and runoff are the most frequently used events in hydrology. Calculating of a flow at the outlet of river is vigorous for a number of hydrologic studies like water resource management and flood forecasting. This study supported out to estimate rainfall-runoff relation in Beressa watershed. HEC-HMS model is used to pretend rainfall-runoff process and to apply the rainfall-runoff analysis by using SCS_CN method in Beressa Watershed. A physical based …
Published in Journal of Water Resource Engineering and Management · Vol. 8, Issue 3, 2021 · pp. 40–63 Read article
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Application of Dynamic Phasor Model as an Alternative to DFT in Phasor Measurement
Abstract: This paper presents the application of dynamic phasor based models as an alternative to the Discrete Fourier Transform (DFT) commonly used in the Phasor Measurement Units (PMU). The paper demonstrates that the computation of a phasor using DFT in discrete time domain is equivalent to the computation of phasor (Dynamic Phasor) in continuous time domain. This paper proposes the application of dynamic phasor based models to simulate a Wide Area …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 1, 2018 · pp. 46–52 Read article
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Maximum Power Point Tracker and its model in MATLAB
Abstract: The study says that In a (Power-Voltage or current-voltage) curve of a solar panel, there is an optimum operating point such that the PV delivers the maximum possible power to the load. This unique point is the maximum power point (MPP) of solar panel. Its mathematical models of the components of PV module that is MPPT model uses the MPPT control unit, and Buck- Boost converter to implement a simulation …
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 3, 2019 · pp. 26–31 Read article
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Analysis of Six-Pulse Bridge Circuits Including Zener and Semiconductor Diodes – Part Two
Abstract: The present study offers a generic method for simulating and modelling six-pulse rectifier bridge circuits in the time domain. These circuits can include Zener and/or semi-conductor type diodes or even a mixture of them. The governing system of simultaneous algebraic and differential equations are listed and solved numerically using a computer code written in Mathematica. The flexibly written program can handle voltage sources of any time waveform, frequency or internal …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 2, 2022 · pp. 13–21 Read article
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Power Generation using Photovoltaic System with MATLAB Simulink
Abstract: The issues of decreasing natural resources, the ensuing environmental repercussions, and the increasing demand for new energy resources have been actively investigated in recent years [13], partly because energy resources and their use will be a key concern of this century.Over the past ten years, grid-connected photovoltaic (PV) power systems have experienced phenomenal growth. Growing public awareness of climate change, tax advantages and rebates, and the falling cost of solar …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 36–42 Read article
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Numerical Simulation and Parameter Analysis for Pentacene based Organic thin Film Transistor with HfO2 Gate Dielectric
Abstract: This paper explains 2D numerical simulation and Characterization of Electrical parameter of Pentacene (Organic semiconductor) based Organic thin film transistor (OTFT) devices with HfO2 as a gate dielectric and Electrical parameters including; Threshold Voltage (Vt), Mobility (µ),Ion/Ioff, and Transconductance (gm), Sub threshold slope (SS) are extracted. The numerical simulation includes model for defect density of state and field dependent mobility model.
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 2, 2019 · pp. 28–34 Read article
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A Method of Mesh Deformation for Flow Analysis Around Oscillating Bodies
Abstract: In general, high-speed rotating machines are subjected to complex phenomena due to various reasons, such as increased noise and strong vibration due to dynamic unbalance, which affect the dynamic motion of rotating machines and are necessarily a problem to overcome. Therefore, it is necessary to have a mathematical model to simulate it, and a strong tool to solve the constructed model. Using fluid-structure coupling techniques, which are currently a powerful …
Published in Journal of Experimental & Applied Mechanics · Vol. 16, Issue 2, 2025 · pp. 35–42 Read article
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Dynamic Behavior of Asphalt Stabilized and Grid Reinforced Subgrade Soil
Abstract: The impact of repeated loading (punching shear) on Asphalt stabilized and grid reinforced subgrade soil have been investigated in this study. Specimens of 152mm diameter and 116 mm in height have been prepared, cured, and then tested using the pneumatic repeated load system PRLS. The deformation-load repetitions data were recorded for each case. Data were fed to the finite element software for the modeling process. An assessment was conducted to …
Published in Trends in Transport Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 1–9 Read article
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Simulation Studies of a Triangular Shape Closed Loop Wind Tunnel
Abstract: An innovative approach in the modeling and simulation of flow parameters of a triangular shape closed-loop wind tunnel was carried out using Computational Fluid Dynamics (CFD), which decreases the overall heat loss of the tunnel from the traditional closed loop wind tunnels and individual section simulations are done to predict and prove the decrease in losses occurred by them and the entire concept wind tunnel is simulated to see the …
Published in Research & Reviews : Journal of Physics Read article
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Hydrodynamic and Sedimentation Modelling for Capacity Optimization of OR1, OR2, and Fertilizer Berths at Visakhapatnam Port, India
Abstract: This study presents comprehensive hydrodynamic and sediment transport modeling undertaken to assess the impact of proposed deepening and development at the Western Arm of the Visakhapatnam Inner Harbor, India, encompassing OR1, OR2, and Fertilizer berths. The work, carried out by the Central Water and Power Research Station (CWPRS) for the Visakhapatnam Port, utilized the MIKE 21 Flexible Mesh (FM) finite-volume model to simulate hydrodynamic and siltation conditions under existing and …
Published in Journal of Water Resource Engineering and Management · Vol. 13, Issue 1, 2026 · pp. 33–51 Read article
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Wireless Sensor Networks Simulation
Abstract: The formidable growth of Wireless Sensor Network (WSN) research has raised challenging issues of examining the micro behaviour of proposed protocol and carrying out its performance evaluation. The methodologies to realize this is: mathematical modelling; experimentation and simulation. For WSNs, experimentation has financial constraints and mathematical modelling at times requires deep expertise in mathematics. Thus simulation has become the first choice for research in WSNs. There are several researchers using …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 2, 2014 · pp. 1–8 Read article
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Evaluation of Best Watershed Management Practice for Sediment Yield Reduction (The Case Study of Baro Akobo of Upper Gilo Watershed, Ethiopia)
Abstract: This study aimed to estimate the sediment yield, evaluating its distribution, and compare the selected Best Management Practices (BMPs) and identify relatively effective management practices to alleviate soil erosion and sedimentation yield in the Upper Gillo watershed. Soil and Water Assessment Tool (SWAT) model with the interface of Geographical Information System (GIS) were used to simulate, streamflow and sediment yield. Meteorological, hydrological and spatial data were used while modeling the …
Published in Journal of Water Resource Engineering and Management · Vol. 8, Issue 2, 2021 · pp. 1–17 Read article
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Fluent Simulation & Analysis of Earth Heat Exchanger with Air as a Cooling Medium
Abstract: Because of the temperatures differential between the environment and the subsurface, an Earth Air Tube Heat Exchanger (EATHE) uses the thermal energy of the ground for air conditioners in the winter and air cooling in the summer. Everyone can lower the amount of energy needed for space heating or cooling with the aid of EATHE. However, it is challenging to create precise energy simulations and designs for calculating surface heat …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 1, 2024 · pp. 18–26 Read article
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Review of Simulation Techniques for Microscopic Mobility of Pedestrian Movement
Abstract: Simulation techniques are very useful for developing models or systems over time torepresent the real-world scenarios. The model represents the key characteristics orbehaviors/functions of the selected physical or abstract system or process. Simulationtechniques are useful when the real system cannot be engaged, because of inaccessibility,or dangerous or is unacceptable to engage or does not exist. Microscopic characteristicsof pedestrian traffic consider speeds, walking directions, distances between pedestrians,relative positions, passing behavior and …
Published in Trends in Transport Engineering and Applications · Vol. 1, Issue 1, 2014 · pp. 27–45 Read article
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Integration of Vertical Axis Wind Turbines into Urban Environments: Feasibility and Design Considerations
Abstract: Abstract This study aims to comprehensively investigate the performance of Savonius rotor wind turbines through a combination of numerical simulations and experimental testing. Initially, 3-dimensional CAD software Solidworks and ANSYS will be utilized to design detailed models of the turbines. Numerical meshes will then be generated around these models using FLUENT software, incorporating the k-ε turbulence model to simulate fluid flow fields. Parameters such as drag coefficient, lift coefficient, pressure …
Published in Journal of Aerospace Engineering & Technology · Vol. 14, Issue 2, 2024 · pp. 20–25 Read article
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Study and Modelling of Id Allocation Scheme for Controller Area Network
Abstract: Diverse Bus standards are employed in dedicated application field considering the required safety level, data rate and costs. The Controller Area Network is a widely used communication protocol used in automotives. CAN is mostly used in real time safety critical system where the performance of communication is significant. Performance analysis of the CAN is very important and can be done either using hardware or software, using hardware is costly and …
Published in Journal of Electronic Design Technology · Vol. 3, Issue 1-3, 2012 · pp. 72–78 Read article
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Orcad P-spice Modified Switches for Electrical and Electronic Circuits
Abstract: Voltage dependent switch and Current dependent switch are extensively used to obtain open/short circuit in various networks for various applications. PSPICE /OrCAD software analog behavioral modellings options and Spice dependent sources are used to obtain control equivalent circuits for switches (P-spice built-in models) to be used for two types of applications. Different circuits (at DC, time-domain), and Spice files are described to simulation circuits with analyses. The following features are …
Published in Journal of Semiconductor Devices and Circuits · Vol. 11, Issue 3, 2024 · pp. 27–45 Read article