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650 articles for “Simulation”
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Turbocharging of Spark Ignited Wankel engine for High Altitude Application Using 1-D Simulation Approach
Abstract: Wankel engines are increasingly finding their application in unmanned aerial vehicles, especially where high power-to-weight ratio is of utmost importance. This advantage makes the Wankel engines outperform the reciprocating engines despite several shortfalls. 1-D simulation model of the Wankel engine has been constructed from commercially available software for reciprocating piston engines. This model was then used to study the matching of turbocharger for the required application and the effect of …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 1, Issue 1, 2015 · pp. 36–47 Read article
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3D Stress State Dependent Failure Model for Fracture Simulations
Abstract: The state of stress is defined by triaxiality (hydrostatic pressure) and the lode angle parameter (deviatoric stress third invariant). The stress state not only varies with different kinds of loading but also with the location of the stress concentration, geometry of specimen and deformation. The LS-DYNA implementation of a strain-based, stress state dependent failure criterion for a ductile material is investigated through simulations of standard experiments in this paper. A …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 44–65 Read article
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Heat Generated Simulation with Bacteria and Fungi inCrude Oil Remediation in an Aerated Lagoon
Abstract: Studies on the heat generated by bacteria and fungi in an aerated lagoon were monitored by theapplication of MATLAB computed software simulation. Mathematical models were developed in termsof substrate utilization by microbes and correlated with the Monod’s equation model which revealedthe trend of heat generated at different operating temperature of 15°C, 30°C, 45°C, 60°C, 75°C, 90°C,105°C and 120°C. The heat generated varies with increase in the microbial concentration as favoredby …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 12, Issue 1, 2026 · pp. 27–45 Read article
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Design and Simulation of Compact Microstrip Patch Antennas for 5G Applications
Abstract: The rapid growth of fifth-generation (5G) wireless communication systems has created significant demand for compact, high-gain, low-profile, and energy-efficient antenna technologies. Microstrip patch antennas have emerged as one of the most suitable antenna structures for 5G applications because of their lightweight design, low fabrication cost, compact size, ease of integration, and compatibility with modern wireless devices. However, conventional microstrip patch antennas suffer from limitations such as narrow bandwidth, low gain, …
Published in International Journal of Broadband Cellular Communication · Vol. 11, Issue 1, 2026 · pp. 1–16 Read article
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Thermoelectric Energy Recovery from Exhaust Systems: Design, Simulation, and Performance Analysis of a Waste-Heat Recovery Prototype
Abstract: In today’s context, energy plays a vital role in environmental development. Unfortunately, most energy strategies that yield immediate benefits often contribute to long-term environmental degradation. The law of conservation of energy states that “Energy cannot be created or destroyed; it can only change from one form to another.” This idea emphasizes the fact that no technological improvement can continue eternally without having negative effects. Every living thing on the world …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 11, Issue 2, 2025 · pp. 1–21 Read article
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Polynomial Thevenin Resistance Networks for Spice Simulation
Abstract: Two networks with resistors and independent sources are considered to compute Thevenin resistance. A different network is considered where the Thevenin resistance from the previous independent networks is to be incorporated (in a polynomial representation). Different methods using Spice/Pspice software to obtain the above representation are described. SPICE/OrCAD software is used to obtain equivalent circuits for Thevenin equivalent network parameters used in polynomial form are described and other different networks …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 10, Issue 2, 2024 · pp. 22–36 Read article
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Simultaneous Determination of Caffeine And Nicotinic Acid in Real Samples Using Mean Centering of Ratio Spectra Spectrophotometric Method
Abstract: In this paper a simple method was developed for the simultaneous determination caffeine and nicotinic acid, without prior separation steps. This method is based on the mean centering of ratio spectra. The mathematical explanation of the procedure is illustrated.The procedure is successfully applied to the simultaneous determination of these analytes in Coffeeand tea samples. KeyWords: mean centering, ratio spectra, caffeine, nicotinic acid
Published in International Journal of Analytical and Applied Chemistry · Vol. 1, Issue 1, 2015 · pp. 1–6 Read article
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Development and Validation of a Reversed-Phase HPLC Method for the Simultaneous Determination of Telmisartan and Its Related Compound B (Positional Isomers) in the Bulk Drug
Abstract: A simple, selective, accurate, precise and linear RP-HPLC method was developed and validation for Simultaneous determination of Telmisartan and its related Compound B 4ʹ-[(1,7-Dimethyl-2'-propyl[2,5'-bi-1H-benzimidazol]-1'-yl)methyl][1,1'-biphenyl]-2-carboxylic acid; 4'-[(1,7'-dimethyl-2'-propyl-1H,1'H-2,5'-bibenzo[d]imidazol-1'-yl)methyl]biphenyl-2-carboxylic acid; was accomplished in the bulk drug and synthesis for drug and a tablet formulation using a Reversed Phase High Performance liquid chromatography method with UV detection separation was achieved on Inertsil ODS-3V column (150 × 4.6 mm, 5 μm) (GL Science) as stationary …
Published in International Journal of Analytical and Applied Chemistry · Vol. 1, Issue 2, 2015 · pp. 12–23 Read article
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Simulation of Syngas Production from Rice Straw Gasification over Zeolite Catalyst using Aspen Plus
Abstract: A comprehensive process model is developed to simulate syngas production from Rice strawGasification over zeolite catalyst using an Aspen Plus simulator. The model is based on Niko andMahinpey model and some modifications were made in the gasification reaction model. Two caseswere stimulated which are catalytic gasification and non-catalytic gasification to test the impact ofzeolite catalyst on the reaction. Comparisons were based on the basis of flowrate, energyconsumption and effect of …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 7, Issue 2, 2021 · pp. 11–17 Read article
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Simulation of Heat Generated on Crude Oil Degradation upon the Effect of Temperature in Bacteria Growth Kinetics in a Bioreactor
Abstract: Model was established to simulate the heat generated by bacteria with the interaction of substrate (crude oil) degradation in a bioreactor upon the influence of temperature. The model was predicted by simulating the characteristics of bacteria interaction with substrate at temperature of 15oC, 30oC, 45oC, 60oC, 75oC, 90oC, 105oC and 120oC and heat generated is within the range of -1.0 to 7.1kcal/hr for bacteria in fresh water medium whereas for …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 2, 2022 · pp. 39–54 Read article
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Simulation Models for Flexural and Compressive Strength of Concrete Using Waste Glass as Partial Replacement.
Abstract: The research present the usefulness of waste glass in the production of grade 20 concrete using partial replacement levels of 0%, 20%, 40% and 60%, respectively, for coarse glass and fine glass to coarse aggregate and fine sand aggregate. The results obtained indicate that, for the purpose of construction works, 20% replacement should be adopted either for coarse glass or fine glass replacement. Simulation models were established to predict flexural …
Published in International Journal of Construction Engineering and Planning · Vol. 4, Issue 2, 2018 · pp. 1–7 Read article
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Simulation Models to Estimate Annual Runoff Volume in different Characteristics Soil Formation
Abstract: The study is aimed at developing mathematical models that will simulate annual runoff to acorresponding annual rainfall for different soil characteristics formation in the studied area. Theresearch established predictive models for sandy soil and sandy loam and coastal alluvium and siltyloam that can be used to simulate annual runoff to a corresponding annual rainfall usingmathematical tool of linear regression method and high correlation was found between annualrainfall and annual runoff …
Published in International Journal of Water Resources Engineering · Vol. 7, Issue 1, 2021 · pp. 26–33 Read article
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Application of MATLAB Simulation Processes on Transfer Functions and Model Equations for Pneumatic Force-Balance Transmitter
Abstract: An investigation was conducted to examine the application of MATLAB simulation processes on transfer functions and model equations for pneumatic force-balance transmitter. A mathematical model was developed to demonstrate the relationship between time and pressure as well as displacement in proportional, derivative and integral controllers. The results obtained revealed increase in times as well as increase in displacement for proportional controller, proportional integral controller and proportional derivative controller. MATLAB 2013 …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 1, 2018 · pp. 7–14 Read article
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SIMULATION ANALYSIS OF A NOVEL FIVE-LEVEL DIODE CLAMP MULTILEVEL INVERTER TOPOLOGY FOR INDUSTRIAL APPLICATION
Abstract: This paper presents a new five level diode clamped multilevel inverter topology which can be used for low-medium power industrial applications. In this work proposes single phase five level Diode Clamped Multilevel Inverter (DCMLI) topology using an auxiliary switch is presented, the number of power devices required to implement a five-level output. The topology is tested in the design of a 5 levels diode clamp multilevel inverter simplified; circuit operation …
Published in International Journal of Electrical Power System and Technology · Vol. 5, Issue 2, 2019 · pp. 35–43 Read article
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Simulation and Design of Closed Loop Controlled Buck - Boost Converter
Abstract: In this paper we propose to model some practical power electronic converters used in the intermediate power conversion process for e.g. wind, solar, and battery system. The small-signal models are derived from the differential equations. Based on the models, simulation and experimental results is be provided to validate the proposed controllers. A mathematical and simulation model of a practical Buck-Boost converter is developed, it will be employed for closed loop …
Published in International Journal of Electrical Power System and Technology · Vol. 7, Issue 1, 2021 · pp. 13–23 Read article
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I–V Measurement System for Solar Simulator
Abstract: This paper deals with “I–V Measurement system for solar simulator”. In this paper, device developed is capable of handling solar cell model of open voltage from 6 to 60 V with the short circuit current upto 10 A. For the linear I–V characteristics measurement a linear current source from 0 to 2 A is resemble with a BJT amplifier and the measurement time for the current is 1 ms. In …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 2, Issue 1, 2016 · pp. 5–10 Read article
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Numerical Simulation of GaAs based MISFET Photo detector for Optical Communication
Abstract: This paper presents a 2D numerical simulation and analysis of GaAs based MISFET photo detector. Numerical simulation of the performance of the device in dark and illuminated condition has been performed. Drain current increases with wavelength of operation and attains maximum value at 0.65 micron and there is a sharp fall beyond 0.85 micron which is higher cut off wavelength for the proposed structure. The device exhibits very low dark …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 2, Issue 1, 2016 · pp. 17–30 Read article
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PERFORMANCE COMPARISON OF SIMULATED AND FABRICATED WIDEBAND MINIATURIZED WPD
Abstract: In this paper comparison of result of simulation and fabricated miniaturized Wilkinson Power Divider is proposed. The decay in performance of Wilkinson Power Divider during fabrication process is discussed in detail. Equal splitter Wilkinson Power Divider is designed by using CST MWS software which is very excellent as comparison to other RF design software in present scenario. The fabrication process is adopted by using PCB technology due to ease of …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 1, 2017 · pp. 10–14 Read article
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Designing and Simulation of Dual Band Antenna using CPW Feeding
Abstract: ABSTRACTA dual-band antenna is proposed in this paper based on a coplanar waveguide feeding technique. This proposed antenna has 70 MHz and 426 MHz maximum bandwidth and they radiate at 1.5 and 2.56 GHz. Maximum return loss and average gain is -40 dBi and 3.0 dBi. A proposed monopole antenna is a combination of slotted rectangular and triangular-shaped structures. A 90-degree inclined T shaped stub was used to provide upper …
Published in International Journal of Microwave Engineering and Technology · Vol. 6, Issue 1, 2020 · pp. 7–13 Read article
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Simultaneous AC and DC Outputs Using Hybrid Converter Modeling
Abstract: The paper proposes a hybrid converter which supplies simultaneous DC and AC loads from a single DC input. The resulting hybrid converters require less number of switches increasing the reliability. Such multi-output converters with better power handling capability and reliability can be well suited for systems with simultaneous DC and AC loads. . The proposed converter, studied in this paper, is called Boost-Derived Hybrid Converter (BDHC) as it is obtained …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 1, Issue 2, 2015 · pp. 1–6 Read article