Search
385 articles for “Velocities”
-
Sensor Less Control of PMSM using SMC and SMO
Abstract: Some particular PMSM applications do not allow for the proper mounting or use of position sensors. A number of PMSM control problems can be resolved with sensorless PMSM control. It is crucial to have a precise predicted position while avoiding the chattering issue for sensorless PMSM control. This paper establishes a prerequisite for a sliding mode observer (SMO) to enter a sliding surface and offers a sigmoid-based algorithm for position …
Published in Journal of Control & Instrumentation · Vol. 13, Issue 2, 2022 · pp. 27–35 Read article
-
Mathematical Modelling of Electromagnetic Induction Coil gun for Non-Lethal Self Defence Applications
Abstract: To take someone's life is often termed as the biggest slanders spiritually one can commit be it while protecting one's self from endangering acts. Non-lethal weapons provide us with an opportunity to come over this dilemma thereby providing a numbing effect to save from devastating consequences. The objective of this paper is to present a non-lethal portable induction coilgun that can potentially address security concerns. To serve the respect and …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 2, 2018 · pp. 66–73 Read article
-
Finite Difference Analysis of Plane Couette Flow using MATLAB
Abstract: Internal flow is a flow for which the fluid is confined by a surface. Hence, the boundary layer is unable to develop without eventually being constrained. An internal flow is constrained by the bounding walls, and the viscous effects will grow and meet and permeate the entire flow. Some examples of internal flows are: flow between two parallel horizontal plates, Couette flow, plane Poiseuille flow, flow through pipes, etc. In …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 1, 2019 · pp. 17–22 Read article
-
Similarity Solution of Two-dimensional Fluid Flow over a Flat Plate Using Shooting Technique
Abstract: The steady incompressible laminar viscous flow over a flat plate is solved using similarity variable transformed equation. The two-dimensional momentum and forced convection energy equations are reduced to boundary layer equation. These equations are transformed into similarity variable form. The surface of the wall is maintained at constant temperature. Shooting technique is used to solve these equations using Runge-Kutta method, Predictor-Corrector method, Modified Euler method, Adam-Bashforth method and Milne’s method. …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 2, 2019 · pp. 23–30 Read article
-
CHARACTERIZATION OF STRENGTH OF ALUMINUM (Al 6063-T6) AFTER CORROSION
Abstract: Aluminum are frequently used as light weight structure in various nautical design. One of them is the ship structure design where sever environment of saline water influences the damage of the structure and one among them is pitting. In this paper, an experimental verification of strength and impact of corrosion effect on Al-6063 – T6 aluminum was presented. The specimens were exposed to saline water for various duration like 500hrs, …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 3, 2021 · pp. 48–61 Read article
-
Injection of Air Bubbles and its Effects into A Shell and Coiled Heat Exchanger: A Review
Abstract: The purpose of this research is to investigate the effects of air bubble injection on the performance of a horizontal helical shell and coiled tube heat exchanger in an experimental setting. The effects of air bubble injection with varied air flow rates on the number of thermal units (NTU), exergy loss, and efficacy are examined. In present review, a shell and snaked tube heat exchanger has been numerically considered. The …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 3, 2021 · pp. 40–47 Read article
-
Investigating the Dynamics of Vortex Shedding in Bluff Body Flows
Abstract: In engineering applications, bluff body flows are commonplace. They are typified by the creation of vortices in the wake zone, a phenomena called vortex shedding. The current study uses a mix of computer simulations and experimental data to examine the dynamics of vortex shedding inbluff body flows. A range of bluff body designs were investigated, and the flow characteristics were analyzed using computational fluid dynamics (CFD) and high-resolution particle image …
Published in Journal of Experimental & Applied Mechanics · Vol. 14, Issue 3, 2023 · pp. 18–23 Read article
-
Hybrid Solar PV–Wind Energy System: A Performance Study
Abstract: The solar PV and, wind energy hybrid technology is based on the concept of a modular, scalable, distributed renewable energy system designed and optimized for on and off grid installations. This kind of system is fully integrated hybrid system that combines wind energy units with PV technology in a compact footprint, creating the greatest energy generation density. The hybrid concept is unique and disruptive, seamlessly utilizing wind and solar energy …
Published in Journal of Electronic Design Technology · Vol. 8, Issue 1, 2017 · pp. 7–10 Read article
-
FDTD-based Time Domain Analysis of CMOS Gate Driven Interconnects
Abstract: Accurate time domain analysis of CMOS gate driven interconnects is important for the design and analysis of high performance VLSI systems. Conventionally, CMOS driver is approximated as a constant resistance instead of non-linear and time-varying MOS resistance, which causes inaccurate modeling of CMOS driver. This paper presents a new method for FDTD-based transient analysis of CMOS gate driven interconnect line using a generalized model. The generalized model of CMOS inverter …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 1, 2014 · pp. 16–21 Read article
-
VLSI Transistor and Interconnect Scaling Overview
Abstract: In this paper, various types of device and interconnect scaling used for VLSI transistors are mentioned. Advanced device scaling techniques using SOI & FINFET technology are discussed for nano-devices. New technologies adopted at research level are stated here in brief. Keywords: Scaling factor ‘s’, technology or process node, short-channel effects, draininduced barrier lowering, punch through, surface scattering, velocity saturation, impact ionization, hot electrons, SOI, floating body, FinFET, quantum dot cellular …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 1, 2014 · pp. 1–15 Read article
-
Modeling Reaction Rate of Dispersion Coefficient and Oxygen Deficit on Nitrobacteria Transport in Onu-Imo River
Abstract: The migration rate of nitrobacteria in the Onu-Imo River was monitored based on some variables that determine the predictive model for such pollution transport. These parameters were factors applied in developing the derived model for the study. The variables were integrated into the system to monitor their various rates of impact on the transport process in the study environment. This was monitored by applying a one-dimensional flow transport system at …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 11, Issue 1, 2021 · pp. 28–41 Read article
-
Review on Main Equations for Measuring Spray Properties in Centrifugal Injectors
Abstract: The method of fuel injection has a significant effect on the stability and proper mixing of fuel and oxidizer, which is done by the injector. In other words, the injector is a device that converts fluid into droplets. The faster and better the particle crushing rate, the faster the fluid particles will evaporate, resulting in higher thermal efficiency and higher thrust force. Therefore, how to inject fuel into the combustion …
Published in Journal of Industrial Safety Engineering · Vol. 8, Issue 3, 2021 · pp. 17–23 Read article
-
Contract and Feature Extraction of CBIR Method Using Soft Computing Techniques in Machine Learning
Abstract: There is expansion in size of picture securing and information capacity strategies and furthermore there is expansion in data set of pictures. Prior text-based depiction and manual comment of pictures were utilized for recovery of pictures that was a tedious errand. The need of great importance is to deal with the huge assortments through proficient frameworks called content-based picture recovery frameworks. For this situation visual items in the picture like …
Published in Journal of Instrumentation Technology & Innovations · Vol. 12, Issue 1, 2022 · pp. 17–26 Read article
-
A Study of Flow Analysis Within a Tractor Cabin with the Goal of Determining the Best Vent Location and Glazing
Abstract: This study aims to improve the thermal comfort inside a tractor cabin by determining the position of the air conditioner vent location. This is obtained by maintaining the cold air flow inside the cabin by means of the air conditioning vents and proper HVAC systems. The concept of glazing on windows with different materials was also used to improve the thermal comfort of the tractor cabin by reducing the thermal …
Published in Journal of Mechatronics and Automation · Vol. 8, Issue 2, 2021 · pp. 29–42 Read article
-
Effect of Various Process Parameters on MRR in Manual Air Plasma Arc Cutting of AISI 1017 Mild Steel using ANN
Abstract: As per recent industrial surveys it is investigated that manufacturing companies define the quality of thermal cutting process by the dimension of work material and cutting surface appearance. Therefore, the surface roughness and material removal rate (MRR) are primarily considered. In this work the effect of three input parameters air pressure (P), cutting current (I) and cutting velocity (v) on material removal rate (MRR) is obtained experimentally. An artificial neural …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 2, 2015 · pp. 8–14 Read article
-
Real-time Collision Detection for Visually Impaired Peoples
Abstract: AbstractThe blind people are at a significant drawback because they often lack the information for avoiding obstacles and threats in their path. They have very little information on self-velocity, objects, route, etc., which is essential for travel. Previously developed navigation systems use costly equipment which is often not affordable by the common blind peoples. Also, the navigation systems available are heavy weighted and very complex to use. Our research is …
Published in Journal of Microcontroller Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 1–4 Read article
-
Finite Difference Analysis of Plane Couette Flow using MATLAB
Abstract: AbstractInternal flow is a flow for which the fluid is confined by a surface. Hence, the boundary layer is unable to develop without eventually being constrained. An internal flow is constrained by the bounding walls, and the viscous effects will grow and meet and permeate the entire flow. Some examples of internal flows are flow between two parallel horizontal plates, Couette flow, plane poiseuille flow, flow through pipes, etc. In …
Published in Journal of Microcontroller Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 7–11 Read article
-
Comparative Between (LiNbO3) and (LiTaO3) in Detecting Acoustics Microwaves Using Classification
Abstract: AbstractOur work is mainly about detecting acoustics microwaves in the type of BAW (Bulk acoustic waves), where we compared between Lithium Niobate (LiNbO3) and Lithium Tantalate (LiTaO3), during the propagation of acoustic microwaves in a piezoelectric substrate. In this paper, we have used the classification by Probabilistic Neural Network (PNN) as a means of numerical analysis in which we classify all the values of the real part and the imaginary …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 3, 2018 Read article
-
Optimization of Wear and Friction Parameters of Al-WC Composite Using Response Surface Methodology
Abstract: This paper aims to optimize the wear and friction parameters of Al-WC composite using response surface methodology. Initially dry sliding wear test on specimen of Al-0WC, Al-5WC, Al-8WC and Al-11WC composites were performed using pin-on-disc equipment under atmospheric conditions, with the varying parameters of the applied load 80KN and Sliding distance 6700m and the sliding velocity is kept constant of 3.34 m/s. The optimum parameters of wear mass loss and …
Published in Journal of Materials & Metallurgical Engineering · Vol. 9, Issue 3, 2019 · pp. 17–26 Read article
-
Mechanical and Tribological Characterization of CaCO3 and CaSO4 Filled CSM-E-Glass Fiber Reinforced Vinyl Ester Composites
Abstract: AbstractIn this paper, mechanical and tribological behavior of the composites under dry sliding wear of vinyl ester matrix reinforced with chopped strand mat (CSM)-E-glass fiber and fillers CaSO4 and CaCO3 sliding against smooth stainless steel counterface (Ra = 0.07 µm) using Taguchi experimental design has been presented. The effects of sliding velocity (1.57, 2.62 and 3.67 m/s), normal load (20, 40 and 60 N), filler content (0, 10 and 20 …
Published in Journal of Polymer & Composites · Vol. 1, Issue 3, 2013 · pp. 13–31 Read article