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1985 articles for “Mizaj Mo’tadil Tibbi” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Fuzzy and PI Based Speed Control of BLDC Motor using Bidirectional Converter for Electric Vehicle Application
Abstract: Fuzzy logic control can be used in BLDC motor to control the four quadrants of operation so as to avoid power loss. In this study, a fuzzy based controller for speed control of BLDC motor is done, and it is compared with the conventional PI controller-based speed control technique. In addition to this, a bi-directional converter is used to achieve battery charging during regeneration and to charge the battery externally …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 35–45 Read article
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Self-Compensation of Commutation Phase Error for Brushless DC Motor
Abstract: BLDC motors are synchronous motors powered by DC electricity via an inverter which produces an AC electric current to drive each phase of the motor via a closed loop controller. Electronic commutation is the on-and-off of the semiconductor switches at appropriate time to turn stator windings. Commutation phase ripple is generated due to the different exchange rate between outgoing phase current and incoming phase current of inverter during commutation period. …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 72–81 Read article
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Matlab/Simulink Implementation and Analysis of SVPWM, SPWM and THIPWM: A Modular Approach
Abstract: The SVPWM technique has become more popular today than ever before due to the availability of fast digital systems for implementing this switching scheme. This is the preferred switching scheme for three phase inverters when compared to traditional SPWM. This paper describes a modular implementation and analysis of three popular switching methods employed in voltage source inverters: Space Vector Pulse Width Modulation (SVPWM), Sinusoidal Pulse Width Modulation (SPWM) and Third …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 23–35 Read article
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A Review on Modification in PST Adaptor Plate Fixture for Improvement in the Productivity
Abstract: PST (Power steering) is a solid plate is used in 100 HP tractor as hydrostatic manifold as a mechanism of clutch, brake & forward reverse system. so PST adaptor plate has a Fixture is used a work holding device used in a production and machining in industries, a device fixed to the work table of a machine and locate the work in an exact position relative to the cutting tool. …
Published in Trends in Machine design · Vol. 6, Issue 1, 2019 · pp. 8–18 Read article
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Condition monitoring and fault diagnosis of gears based on vibration signatures - A review
Abstract: Gearbox is widely used in industrial and military applications. It is subjected to high service load and harsh operating conditions or inevitable fatigue, due to which faults may develop in gears. Fault diagnosis plays an important role in condition monitoring to enhance the machine time. Vibration-based condition monitoring can be applied in gear systems to detect the origination and expansion of fault before the occurrence of failure. Eventually, occurrence of …
Published in Trends in Mechanical Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 39–45 Read article
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Modeling and Simulation Study of Flow and Temperature Characteristics of a Pen-shaped Plasma Torch
Abstract: This study presents the numerical modeling, simulation and experimental findings of plasma flow and temperature characteristics in pen-shaped plasma torch. The complex plasma flow characteristic due to the interaction between electric arc and nitrogen gas inside the pen-shaped plasma torch is modeled using the Maxwell’s and the Magnetic-Hydrodynamic (MHD) equations. Cartesian coordinate based finite volume discretization is used to solve numerically all the governing equations. At a specific boundary condition, …
Published in Trends in Mechanical Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 22–30 Read article
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Measurement of Defects in Car Bearings and Its Effect on Ultrasonic Waves
Abstract: As one of the defects of roller bearings due to intermittent coupling forces and external impact loads,surface cracks due to corrosion or wear may have many defects for rotating machines. Surfacecracking on the bearing or its ball is one of the important factors in the efficiency of the bearing andits opening. It is useful to study these cracks and identify the type and size of these cracks for bearingsused in …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 44–49 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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Bluetooth Based Wireless Digital Stethoscope with Mobile Integration
Abstract: AbstractAcoustic stethoscopes operate on the transmission of sound from the chest piece, via air-filled hollow tubes, to the listener's ears. In the stethoscope, the chest piece and the connecting cable are known to facilitate transmission of pathogens from patient to patient and from patient to the user. Replacing the connecting cable with a wireless system may help reduce the potential risk and further allow broadcasting of the signals to multi-user …
Published in Trends in Opto-electro & Optical Communication · Vol. 10, Issue 2, 2020 · pp. 1–4 Read article
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LoRa based Healthcare and Agriculture Monitoring System with IoT Platform
Abstract: Because of the absence of portable foundation in local regions, a ton of current innovations can't be utilized effectively. With Long Range (LoRa) and Long Range Wide Area Network (LoRaWAN), there are new ideas for remote long-range correspondence which have been set up. They empower an advanced specialized answer for convey in rural regions, where current portable organization inclusion is absent. This paper examines LoRaWAN for Agriculture and Healthcare based …
Published in Trends in Opto-electro & Optical Communication · Vol. 11, Issue 2, 2021 · pp. 7–12 Read article
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Automatic Room Light ON/OFF Control using Arduino
Abstract: The concept and construction of an automatic room light ON/OFF control utilising an Arduino and a PIR sensor are presented in this research article. When a person enters the room, the system is programmed to turn on the lights, and when the room is empty, it is programmed to turn them off. The device uses a Passive Infrared (PIR) sensor and an Arduino microcontroller to detect the presence of a …
Published in Trends in Opto-electro & Optical Communication · Vol. 13, Issue 1, 2023 · pp. 27–32 Read article
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Influence of Blending Technique on Surface Free Energy of Modified Asphalt Cement
Abstract: AbstractThe processing technique of modified asphalt cement in the laboratory is adopted by heating the asphalt cement in an oven to the required mixing temperature; then the additive is added and mixed for a target mixing time. It was felt that such technique allows more volatiles to evaporate and required high mixing temperature. In this work, asphalt cement of 44 penetration grade was gained from Dora refinery, south west of …
Published in Trends in Transport Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 22–31 Read article
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Review on Strengthening & Retrofitting of RCC & Masonry Bridge Structure with Analytical Modelling of Sensor Data for the Durability of Bridge Structure
Abstract: In later a long time, monstrous advancement in Structural Health Monitoring (SHM) of bridges makes a difference address the life span and unwavering quality of bridge structure at differentiating stages of their benefit life. This article gives a point-by-point understanding of bridge observing, and it centers on sensors utilized and all sorts of harm location (strain, Displacement, acceleration, and temperature) concurring to bridge nature (scour, suspender failure, disconnection of bolt …
Published in Trends in Transport Engineering and Applications · Vol. 9, Issue 3, 2022 · pp. 16–23 Read article
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Greenhouse House Monitoring and Controlling using Android Application
Abstract: AbstractGreenhouse monitoring and controlling system is made to ease the maintenance of the entire system of green house and to get optimum growth of plants. With the help of useful sensors like soil moisture sensor, temperature sensor and LDR interfaced with help of Arduino, we are gathering the required data and controlling different parameters that are required for better results by setting a predefined threshold value to controllers. Along with …
Published in Current Trends in Information Technology · Vol. 7, Issue 3, 2017 · pp. 24–28 Read article
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Designing an Energy Efficient Induction Motor: Advanced Computational Intelligence Technique
Abstract: Abstract—This paper presents an advanced computational intelligence technique (CIT), modified particle swarm optimization (MPSO) for designing energy efficient three-phase induction motor (DEEIM) including active power loss effect. PSO performs well for small dimensional and less complicated problems but fails to locate global minima for complex multi-minima functions. Even if PSO algorithm is easy to implement and has been shown to perform well on various power system optimization problems, they may …
Published in Current Trends in Information Technology · Vol. 9, Issue 2, 2019 · pp. 5–13 Read article
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A Planar Monopole Antenna for L-Band Applications
Abstract: AbstractThis paper presents a square monopole antenna for L-band application, it is designed to be used in a 879 MHz–2113 MHz frequency bands. It is printed on dielectric substrate of FR4 glass epoxy with relative permittivity (ɛr) of 4.3, thickness of 1.6 mm, a square monopole antenna (aluminium sheet) is mounted on half ground plane via a single feeding strip. Prototypes of these configurations were manufactured and measured in frequency …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 1, 2013 · pp. 1–3 Read article
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A Machine Vision Approach for Geofence-based Adaptive Friction Modulation in Connected Semi-autonomous Vehicles
Abstract: Safeguarding vulnerable road user (VRU) safety necessitates fail-safes preventing collisions from semi-autonomous vehicles. Geofencing allows service-zones definition but introduces friction discouraging adoption. This paper details an onboard vision model detecting VRUs by helmet status, triggering reactionary neuro-modulations of vehicle maneuverability. The architecture encompasses a YOLOv3 detector determining pedestrian/bicyclist crossing intent through path extrapolations, calibrated using lidar-fusion correcting distance estimates. The subsequent velocity governor adapts acceleration profiles based on predicted exposure …
Published in Journal of Communication Engineering & Systems · Vol. 13, Issue 3, 2023 · pp. 22–29 Read article
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A Personalized Mobile Search Engine Using Ontology
Abstract: A customized versatile web index (PMSE) is proposed here that catches the clients' inclinations as ideas by mining their clickthrough information. Because of the significance of area data in portable pursuit, PMSE characterizes these ideas into content ideas and area ideas. What's more, clients' areas (situated by GPS) are utilized to supplement the area ideas in PMSE. The client inclinations are composed in a philosophy based multifaceted client profile which …
Published in Journal of Computer Technology & Applications · Vol. 8, Issue 3, 2017 · pp. 1–33 Read article
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Detection of Intrusion for Achieving Security in Mobile Ad Hoc Network
Abstract: AbstractMobile means moving, and ad hoc means temporary, with no fastened infrastructure; therefore mobile ad hoc networks area unit a sort of temporary network within which nodes area unit moving with none fastened infrastructure or centralized administration. Deployed in 1990s, mobile ad hoc networks are wide researched for several years. Ad hoc network could be an assortment of nodes that is connected through a wireless medium forming a pace dynamical …
Published in Journal of Computer Technology & Applications · Vol. 8, Issue 2, 2017 · pp. 21–25 Read article
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Real-world Pothole Detection Using Image Processing and Deep Learning Convolutional Neural Network Model
Abstract: Potholes are a major problem of concern in many parts of the cities across the country. Road accidents are one of the causes that significantly affect humanity and result in damage to vehicles and road surface. Potholes are dangerous for pedestrians who walk along the road and vehicular traffic on busy roads. Road accidents are caused due to improper maintenance of roads, and it is imperative to attend to such …
Published in Journal of Computer Technology & Applications · Vol. 14, Issue 3, 2023 · pp. 95–103 Read article