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420 articles for “Theories”
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Influence of wall friction on Active Earth Pressure in Model Test
Abstract: Earth pressure theories occupy a paramount position in the field of geotechnical engineering. The knowledge of active earth pressure under static condition is essential in designing a retaining wall as the damage to such retaining structures may lead to disastrous failure. A retaining wall helps in maintaining the ground surface at different elevations on either side of it. Without such a structure, the soil at higher elevation would tend to …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 1, 2021 · pp. 12–19 Read article
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Evaluate Variations of Deflections of Fixed Headed Pile from Non-Linear Load - Deflection Curve under Lateral Loading
Abstract: Lateral stability is the vital issue when the pile stands in several soft clay either sand layers. In reality, structure and soil both are show non-linear behaviors. Proper evaluation of non-linear behavior has not so essay in theory. However, slight non-linear effects are included in pile deflection from load-deflection curve of pressuremeter test in laboratory. Pressuremeter modulus is influenced deflection of fixed headed piles. Predicting the variations of non-linear load …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 1, 2022 · pp. 45–52 Read article
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Experiment and calculation of vertical bearing capacity of large diameter belled pile
Abstract: Purpose–This paper aims to analyze the vertical bearing behavior of large diameter belled pile by carrying out static load test. Various calculation methods are used to calculate and determine the ultimate bearing capacity of large diameter belled pile.Design/methodology/approach–(1) According to the calculation method of allowable bearing capacity of single pile, the design ultimate bearing capacity of test pile and the load classification of loading and unloading are obtained. (2) Q-S …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 2, 2022 · pp. 1–21 Read article
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Synthesis of low cost artificial sand from fly ash and its application as a filter material
Abstract: The usage of natural river sand is increasing vastly. Geopolymers are materials with three-dimensional alumina silicate structures that have a high mechanical strength and can be used as an alternative to Portland cement. The probability of using Natural river sand can also be replaced with geopolymer synthetic sand. There are many properties which may lead the scarcity of natural river sand they are Because of landslides, tsunamis and erosion. The …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 3, 2022 · pp. 37–46 Read article
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A Review on Smart society and innovations in education
Abstract: Today, discussions over the prospects of digital technology in education are increasingly viewed as part of the larger approach to educational innovation. Despite the fact that education systems and institutions are really not slow to react, important barriers appear to exist. Preventing digital technologies from attaining their complete potential in educational institutions and teaching and learning practices. Learners can learn more effectively, efficiently, flexibly, and comfortably due to the advancement …
Published in Journal of Instrumentation Technology & Innovations · Vol. 12, Issue 1, 2022 · pp. 1–5 Read article
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REVIEW PAPER ON ABRASIVE MACHINING PROCESS
Abstract: Abrasive Machining is the most important process for material removal in the industries. It refers to the action of removing the fibres from a surface. It requires a deep study to obtain a better understanding of the variables that affect the material removal rate, quality of surface & power consumption. Various experiments are designed to determine the impact of interface pressure, belt speed, surface roughness for different grit sizes. A …
Published in Journal of Mechatronics and Automation · Vol. 5, Issue 3, 2018 · pp. 31–35 Read article
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Application of Fixed-point Theorem in Various Field Review
Abstract: This paper is review of application of fixed-point theorem from 15 research paper. It is observed that Fixed point theorem has application in various field like game theory, computer science, integral and differential equations, heattransfer, functional analysis, topology etc.so for research paper we can utilize fixed point theorem for extension in application.
Published in Journal of Mechatronics and Automation · Vol. 7, Issue 2, 2020 · pp. 6–9 Read article
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Optimization of Process Parameters in EDM
Abstract: Extensive research has been done till date to improve the performance of electrical discharge machining (EDM). In the past few years, the Taguchi method has played an important role in the optimization of process parameters. However, many of the studies have focused on static or single-quality characteristics such as smaller-is-better, larger-is-better, and nominal-is-best. The Taguchi method is best suitable for relative analysis. The prime drawback here to mention is that …
Published in Journal of Mechatronics and Automation · Vol. 8, Issue 2, 2021 · pp. 21–28 Read article
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Design and Fabrication of Patch Antenna using DGS for WLAN and WIMAX Applications
Abstract: AbstractIn this paper a small size micro strip patch antenna with dual frequency characteristics is presented. The proposed antenna is designed on an FR-4 epoxy dielectric substrate with the thickness of 1.6 mm and dielectric constant er =4.3. The proposed antenna has used defected ground structure (DGS) stop theory to create dual frequency band characteristics 2.13GHz – 3.25 GHZ for WIMAX and 5.725GHz – 6.3084 Hz for WLAN, respectively. The …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 5–16 Read article
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Design Of Multi-Bit Chipless RFID Tag Using Hybrid Resonator For Retail And Healthcare Applications
Abstract: Resonators play a very important role in chipless radio frequency identification (RFID) systems. To overcome the challenges like cost, compact dimension, and high coding capacity, chipless transponders are highly facilitated for the advancement in chipless RFID technology. This research aims to investigate innovative design options for passive RFID transponders operating in a wide range of frequencies in order to address the aforementioned issues and contribute to RFID technology advancement. To …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 2, 2021 · pp. 35–43 Read article
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A Comparative Study of Elastic Parameters in LiBC
Abstract: The elastic constants for LiBC using higher order Eulerian strain equation of state accordance with method of augmented plane wave under various temperature and pressure have been explored. In present study, we employed Hama-Suito theory of equation of state. The constants C11, C12, C44 and temperature dependent of bulk modulus have been calculated up to high temperature and low compressions. The relation among pressure, volume and temperature have also been …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 1, 2023 · pp. 34–39 Read article
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Application of Evolutionary Techniques for Controller Design of Inverted Pendulum
Abstract: AbstractInverted pendulum is the typical experiment platform for the study of control theories. It is an example of a nonlinear system for which stability becomes the necessary feature and also hard to achieve. The mechanism of a PID controller is employed to demonstrate the projected controller and controller is designed for acceleration as well as angle control. This paper emphasizes on the comparison between conventional PID, genetic algorithm (GA) and …
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 3, 2019 · pp. 1–10 Read article
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Voltage Sag and Swell Compensation Using DVR Based on Asymmetrical Cascade Multicell Converter
Abstract: Dynamic voltage restorer (DVR) is a device which is used to compensate the voltage sags and swells for the protection of sensitive loads. The compensation is done by use of a converter, in this paper DVR configuration is based on asymmetrical cascade multicell converter. One of the main advantages of asymmetrical cascade multicell is increase in the number of output voltage levels with reduced number of switches. 15 level asymmetrical …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 2, 2016 · pp. 23–26 Read article
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Decrement of Spin-orbit Splitting Near Calcium Region
Abstract: Explanation of the observed decrement of splitting of spin-orbit partners near shell closure, has been sought through an introduction of tensor interaction in a mean field type of calculation. The strength of the tensor interaction used in the Skyrme Hartree Fock theory has been optimized by the reproduction of the experimentally determined splitting of 1d, 1f and 2d shell model states (both neutron and proton) of the isotopes of Calcium …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 11–22 Read article
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Harmonic Compensation in Grid Interconnected DG Units by Closed Loop Control
Abstract: This paper deals with improvement of power quality problem namely harmonic problem using distributed generation as their source of electricity. The harmonics occur in such a system because of the nature of loads connected. There are many power quality problems; out of which harmonics normally caused by nonlinear loads like variable frequency drives, fluorescent lightning, office computers etc. have adverse effects on the power quality. Also, harmonic detection and prediction …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 1, 2017 · pp. 9–17 Read article
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Frequency Characteristics and Transient Response of Transmission Lines with Longitudinally Varying Ambient Temperature
Abstract: This paper addresses the steady state, the frequency characteristics and the transient response ofpower lines in the presence of longitudinally varying ambient temperature. This variation willlead to location-dependent line circuit parameters and to a changing equivalent circuit. Thederived models, which are based on the exact long line theory, can incorporate the impact of thedifferent patterns of the temperature distribution in terms of location and magnitude. Severalcase studies of the resulting …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 3, 2019 · pp. 19–30 Read article
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A Comparative Study on Battery Health Monitoring System
Abstract: This work focuses on the recent trends in BHMS and its applications in industries. The concepts of travelling wave theory and Bayesian Framework in the optimisation of BHMS is outlined. The later part of the study focusses on the health monitoring system. EVs or HEVs have been marketed or generally regarded as environmentally sustainable also as substitutes for many automobiles built upon fuel engines. This is because of Lithium Ion …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 1, 2021 · pp. 20–27 Read article
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Harmonic Estimation and its Compensation using D-STATCOM for a Steel Manufacturing Plant
Abstract: Electrical power system having distorted voltage and current waveform generates harmonics. The compensation of the harmonics is greatly required for better performance of the power system. Harmonic is of major concern for the power system containing electric arc furnace (EAF). Since the nature of the arc is highly non-linear and time varying and therefore harmonic analysis becomes important to know the behavior of the power system. This paper presents the …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 2, 2021 · pp. 27–35 Read article
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Aspects of Diamond-Like Carbon based MEMS and Microfluidic Devices
Abstract: In general, diamond-like carbon (DLC) is the hydrogenated amorphous carbon (a-C:H) to be used in the fabrication of micro electromechanical systems (MEMS) and microfluidic devices. Mukhopadhyay as author has recently demonstrated the variation of surface wettability in polymer based microchannels by the use of DLC. Also, DLC can be used as an anti-stiction coating in different applications. In this review, different features of DLC are briefly highlighted. This educational short …
Published in Journal of Petroleum Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 31–33 Read article
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Rheology and Flow Properties of Fracturing Gels in Straight and Coiled Tubing
Abstract: This study involves experimental investigation of rheological and hydraulic characteristics of aqueous based polymeric and surfactant fluids in straight and coiled tubing. The fluids matrix includes guar, HPG, PHPA, welan, xanthan, and surfactant. Bohlin rheometer was used to evaluate rheological and viscoelastic characteristics. For hydraulic characteristics, small- and large-scale flow loops were used. It is observed that all fluids exhibit comparable non-Newtonian behavior and improved viscous and elastic properties. Among …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 27–43 Read article