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450 articles for “optimum”
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Development of Intermittent Gas Lift Optimum Time Module Using Automatic Pneumatic System
Abstract: Artificial lift technique is used to bring hydrocarbons to the surface when they cannot come to the surface on their own. Gas lift is an artificial lift technique which is classified into continuous and intermittent gas lifts. Continuous gas lift is used when the hydrocarbon fills into the wellbore continuously but is not able to come to the surface while intermittent gas lift is used when the fluid flow into …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 40–50 Read article
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Determination of the optimum conditions for salt bath ferritic Nitrocarburizing process of AISI 1018 Steel using ANOVA method.
Abstract: Industrial modern machinery components such as gears, bolts and shafts are always subjected to continuous frictional wear. From decades' surface treatments are performed to enhance the tribological properties of these components, however use of toxic cyanide salts in the techniques like Nitrocarburizing is a threat to environment. Therefore, another non-toxic surface modification process Sursulf Nitrocarburizing is investigated on AISI 1018 low carbon steel and results were analyzed and optimized using …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 1, 2018 · pp. 1–7 Read article
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Investigation of Optimum Stress Concentration Factor for Shoulder Fillet in Round Bar under Different Loading Conditions
Abstract: The focus of this study is to investigate the optimal fillet radius of shoulder fillet in round bar which gives minimum stress concentration factor under different loading conditions i.e. torsional, bending and axial. Peterson’s curves were developed based on experimental work and analytical work carried out by number of researchers in the past. In that curves it is stated that the r/d ratios in the curves were taken from the …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 18–26 Read article
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Characterizing L-Band EDFA for WDM Optical Communication using Implicit Analytical Model
Abstract: ABSTRACT In this paper, some of the significant design parameters of L-band EDFA such as choice of optimum pump wavelength, optimum erbium-doped fiber (EDF) length, and optimum pump power have been characterized by solving implicit analytical signal gain equation using simulation as derived for C-band EDFA by F. F. Rühl. After determining optimum pump wavelength, optimum pump power and optimum EDF length, performance of L-band signal amplification has been shown …
Published in Trends in Opto-electro & Optical Communication · Vol. 2, Issue 3, 2012 · pp. 8–16 Read article
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Optimization of FLOTOX in EEPROM Design
Abstract: Abstract: Electrically Erasable Programmable Read-Only Memory (EEPROM) is a non-volatile memory (NVM) which is used in computers, integrated into microcontrollers for smart cards and remote keyless system, and other electronic devices to store relatively small amounts of data but allowing individual bytes to be erased and reprogrammed. Here the sizes of the floating gate & control gate have been altered to find the impacts for programming events and determine the …
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 1, 2019 · pp. 1–9 Read article
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Portland Cement for A-4 group Soil Stabilization
Abstract: In the geotechnical practice, the stabilization of soil using cement is a necessary procedure when soilsdo not meet the geotechnical requirements i.e. they show low bearing capacity so it’s necessary toimprove their engineering properties generally adding lime or cement, or moisture of lime andcement. The aim of this research focuses on the description of a geotechnical laboratory tests plan forA-4 Group Soils according to AASTHO Soils Classification, generally consisting of …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 1, 2021 · pp. 41–49 Read article
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A Comparative Study on Effect of Dielectric Covers on Microstrip Patch Antenna
Abstract: In this paper, the square patch microstrip antenna covered with different dielectric covers affects are studied at different heights above the patch and also compared their performance parameters with theoretical and experimental. The square patch antenna has been designed at 2.4GHz on airlon diclad substrate, whose dielectric constant is 2.2 and thickness is 1.6mm and simulated using HFSS simulation software. The affect of dielectric cover above the patch at height …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 1, 2022 · pp. 16–20 Read article
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Influence of Polypropylene fibres in mechanical properties of fly ash concrete
Abstract: The abundant production of fly ash from coal-based thermal power plants as waste products becoming the problem for their disposal and it is also hazardous to the environment. The inclusion of fly ash in concrete reduces environmental pollution and improves the workability and durability properties of concrete. The present work has been carried out to find mechanical properties such as compressive, split tensile and flexural strength polypropylene fly ash-based concrete …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 54–64 Read article
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First experimental results on “clay and bentonite” mixtures for the waterproofing of a landfill in Northwestern Piedmont Region (NW Italy)
Abstract: We report on experimental results conducted on “clay and bentonite” mixtures for the waterproofing of a tank landfill located in Northwestern Piedmont Region (NW Italy).The geotechnical experimental tests on “clay and bentonite” mixtures were conducted in the laboratory first, with the aim of finding the optimum percentage of granular bentonite to be added to the clay and then, they were carried out in situ, in the tank, on the layer …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 2, 2020 · pp. 13–17 Read article
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Wall Street Prognosis
Abstract: We all know that the stock market is volatile. There is so much turmoil and turbulence in the stock market that it is difficult to predict what will happen. The main purpose of the thematic debate is to predict the future stability of the market with probability coefficients. Investors are familiar with the adage “buy low, sell high” but it doesn't provide enough context to make sound investment decisions. Before …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 10, Issue 1, 2023 · pp. 9–15 Read article
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Design And Analysis of Connecting Rod Against The Variations In Geometrical Parameters
Abstract: This scrutiny has been analyzed for two case studies which is aimed by geometrical variations in connecting rod design. The geometries of both studies is prepared from the theoretically calculated data. The base geometry of connecting rod is designed with I-section for beam portion, as per the standard machine design procedure and theoretically calculated parameters. And that particular I-section`s design factor has formed roots of our both case studies. The …
Published in Journal of Automobile Engineering and Applications · Vol. 8, Issue 2, 2021 · pp. 27–48 Read article
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PARAMETRIC ANALYSIS OF ENERGY SAVING IN BUILDING WALLS BY APPLYING VARIOUS INSULATION MATERIALS
Abstract: The parameters which include Present Worth Factor, the wall structure, thermal conductivity of insulation material, thickness of insulation and the heating /cooling load of building, affect the energy savings in buildings. This study focuses on parametric analysis of the energy savings for building walls by using insulations (Expended Polystyrene and Glass wool). The annual energy requirements of house have been obtained by heating Degree-Days (DD) concept. For economic analysis, the …
Published in Journal of Polymer & Composites · Vol. 11, Issue 12, 2023 · pp. 113–118 Read article
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Passive Augmentation Studies in a Double Pipe Heat Exchanger with Ellipsoidal Dimples
Abstract: In this work, the numerical studies of heat transfer augmentation of a counter-current double pipe heat exchanger with ellipsoidal dimples (inward-facing, raised dimples) on the inner tube was performed using SOLIDWORKS software. The effect of dimple depth, dimple pitch and number of dimples/angles between two dimples on heat transfer was investigated at a constant volumetric flow rate of 4 LPM for hot (water) and cold (water) fluids. The effect of …
Published in Journal of Thermal Engineering and Applications · Vol. 13, Issue 2, 2026 Read article
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Production of Jatropha curcas L. Seed Oil DMC-Js-BioDs by Optimized Dimethyl Carbonate Using Potassium Hydroxide as Catalyst
Abstract: AbstractThe use of Jatropha curcus L. seed oil as the feedstock for biodiesel (DMC-Js-BioDs) production has observed growing interest because it is a non-edible oil. In this study, the production of DMC-Js-BioDs from J. curcas seed oil with dimethyl carbonate (DMC) as the solvent was performed. The reaction was conducted in the presence of KOH as a catalyst to investigate the optimum conditions and study the effects of the variables …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 2, 2017 · pp. 56–63 Read article
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Geotechnical Assessment and Stabilisation of Lateritic Soils in Tarkwa Using Rice Husk Ash for Road Construction Purpose
Abstract: The cost effectiveness of upgrading gravel roads to a sealed standard has challenged road authorities to make optimum use of naturally occurring materials such as laterites as sub-base and base materials. Untreated laterites have presented problems such as pavement swelling and depression in road construction. This research seeks to assess and stabilise the geotechnical properties of some lateritic soils in Tarkwa using Rice Husk Ash for road construction purposes. Lateritic …
Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 1, 2019 · pp. 6–16 Read article
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A Study on Response Parameters of Injection Moulding Process in Polypropylene Plastic using Grey Relational Analysis
Abstract: The purpose of this research is to study multi-response optimization of injection moulding parameters and to verify the optimum parameters of polypropylene for achieving the best result. The four parameters taken for injection moulding are injection pressure, melt temperature, packing pressure and packing time. The experiments are plotted by using L27orthogonal array. Orthogonal array is generated with the help MINITAB-17. The effect of process parameters such as melt temperature, packing …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 3, 2019 · pp. 30–39 Read article
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Control System for Heat Generation in a Hybrid PV/T System
Abstract: The study analyzes the performance of a PV/T unit with a PCM attached to the rear side of the PV panel in direct contact. The unit works removing heat from the panel and using this heat for external applications. The PCM has a heat exchanger inserted to transfer heat removed from the PV panel and stored in the PCM to a water flow that circulates through the heat exchanger. The …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 13, Issue 1, 2023 · pp. 1–16 Read article
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Time History Analysis for an Underground Powerhouse Structure Considering Soil Interaction
Abstract: AbstractThe project deals with the analysis and design of an underground powerhouse constructed on three different soil types (silty, sandy, clay). Though each powerhouse has mostly similar components and machines but the analysis and design of civil structures in a plant are always done with different ideas and optimized techniques. Hence this paper is based on some new and different considerations in analysis and design aspects and optimization. The objective …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 3, 2017 · pp. 1–6 Read article
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Experimental Investigation of High Strength Geopolymer Concrete
Abstract: This paper presents the experimental studies concerning high strength in geopolymer concrete. So far many researches were carried out in geopolymer concrete and also it enhances the strength and durability of OPC concrete. Several compositions of geopolymer concrete mixes were executed by varying the percentage of fly ash and GGBS. By finding the optimum percentage of fly ash and GGBS from the experimental results, the mechanical properties of geopolymer concrete …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 2, 2017 · pp. 29–31 Read article
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Prediction of Excitation Current of Synchronous Machines Based on Neural Network Model
Abstract: There are several difficulties found to estimate the excitation current & and optimum input parameters of synchronous motors. Heuristic methods are frequently used to weightt the problem's parameters or optimum coefficients. As a result, a neural network model is modified in this study to explore the best parameters and estimate the excitation current of a synchronous motor with minimal prediction errors for both the testing dataset and cross validation. Excitation …
Published in Recent Trends in Electronics Communication Systems · Vol. 10, Issue 1, 2023 · pp. 28–33 Read article