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450 articles for “optimum”
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Design of 6-Bit Two-step Flash ADC for High Speed and Low Power Applications
Abstract: In this paper, 6-bit two-step Flash ADC operated at the 2 GS/s is designed, with optimized performance for frequency domain applications. To get the best performance, the coarse convertor of 2-bit and the fine convertor of 4-bit are chosen. The comparator design is done with optimum power and area with two power supplies. Intermediate state accuracy increased by thermometer coded current steering DAC. The DNL and INL specifications are chosen …
Published in Journal of Electronic Design Technology · Vol. 3, Issue 1-3, 2012 · pp. 29–39 Read article
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Modeling and Performance Analysis of Gallium Arsenide Based P-I-N Solar Cells
Abstract: Current technology has made a lot of inspection and also facing many difficulties for optimizing a solar cell’s efficiency. Many previous works had been done on p-n junction solar cells to achieve the maximum performance. But a few researches show us that the performance of p-i-n solar cell has not yet reached its optimum level. Thus in this paper we concentrate on an analysis of Gallium Arsenide based p-i-n solar …
Published in Journal of Electronic Design Technology · Vol. 6, Issue 2, 2015 · pp. 23–27 Read article
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Design and Optimization of Solar Chimney for Small Applications
Abstract: The known resources of fossil fuel in the world are depleting very fast and it is estimated that, by AD 2030, man will have to increasingly depend upon renewable resources of energy. Among various energy alternatives, solar option stands out distinctly with its unique advantage; sun is abundant, inexhaustible source of energy. Abundant power, approximately 1.8×1011 Mega Watt from the sun is available on the earth, which is thousand times …
Published in Journal of Electronic Design Technology · Vol. 11, Issue 3, 2020 · pp. 17–23 Read article
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Modification in Heat Sink Design to Improve its Heat Dissipation Capacity for Current CPU Design
Abstract: AbstractElectronic equipment plays an important role in day-to-day life. Almost every object or equipment or machine uses electronic components to complete its task. For electronic component to work it needs electric current to flow through the circuits. And hence they become main reason of excessive heating. Continued shrinking of electronic systems has resulted in a histrionic increase in the amount of heat generated per unit volume. Air cooling with the …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 8, Issue 3, 2018 · pp. 1–7 Read article
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Production of Biofuel (Biodiesel and Bioethanol):An economical and environmentally feasible way to the society
Abstract: In recent years, bio fuels growers have achieved significant enhancement in crop output and processing efficiencies and today the volume of bio fuels produced in a specific planted area is several times higher than it used to be as latest methodology and technical work to increase production of biofuel. In the sense of methodology, bio fuels are sub-divided into two large categories: substitute for diesel (biodiesel) and substitute for petroleum …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 11, Issue 2, 2021 · pp. 1–10 Read article
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Soil Fertility of Grasslands under Influence of Grazing
Abstract: Grazing is one of the important biotic factors that influence the formation and sustenance of grasslands. The present study was undertaken to assess the influence of grazing by different species of domestic herbivores, on the fertility of grasslands. Soil from grasslands grazed by buffaloes, crossbred cattle, and sheep, as well as control grassland restricted from grazing, were compared for different fertility parameters like soil organic carbon, phosphorus, potassium, iron, zinc, …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 2, Issue 1-3, 2012 · pp. 88–93 Read article
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A Study on Stabilization of Black Cotton Soil Using Fly Ash and Plastic Fibres
Abstract: AbstractSoil stabilization is most important for the construction which is widely used in connection with road pavement and foundation construction because it improves the engineering properties of soil such as strength. Utilization of industrial waste materials in the improvement of soils is a cost efficient and environment friendly method. Stabilization of the expansive soil is studied by using fly ash and plastic fibres. The present investigation is to evaluate the …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 3, 2017 · pp. 11–18 Read article
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Ground Improvement Techniques for Stabilization of Black Cotton Soil by Using Fly Ash
Abstract: In India 22% of the geographical area is covered by expansive ‘Black Cotton Soil’. These soils are characterized by their highly swelling and shrinkage properties. In dry conditions these soils have high strength which is almost completely lost when they come in contact with water. These soils are having high degree of expansion which creates a lot of problems during the execution of work and after completion of it. Hence, …
Published in Journal of Geotechnical Engineering · Vol. 5, Issue 1, 2018 · pp. 30–34 Read article
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Effect of Alccofine Addition on the Index and Engineering Properties of Bentonite
Abstract: This paper presents the results of Atterberg’s limit, compaction, free swell index, and unconfined compressive strength test conducted on bentonite stabilized with alccofine. The alccofine content was varied from 0 % to 2 % by dry weight of the bentonite. The specimens for the unconfined compressive strength were prepared at optimum moisture content and maximum dry unit weight obtained from the compaction test and these specimens were cured up to …
Published in Journal of Geotechnical Engineering · Vol. 6, Issue 1, 2019 · pp. 9–17 Read article
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Influence of Aeration and Curing on Shear Strength of Asphalt Stabilized Soil
Abstract: Asphalt stabilization technique is usually used to control and improve poor subgrade soil condition. The subgrade soil is the foundation for the roadway structure, its responsibility is to provide the required stability for the overlaying pavement and to limit the deformation due to traffic load repetitions by furnishing homogeneous stress distribution. In this work, the unconsolidated undrained Triaxial test was implemented for comparatively assessing the impact of asphalt stabilization on …
Published in Journal of Geotechnical Engineering · Vol. 6, Issue 2, 2019 · pp. 10–17 Read article
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INVESTIGATING THE GEOTECHNICAL PROPERTIES OF A LATERITIC SOIL AS A SUB-GRADE MATERIAL FOR ROAD CONSTRUCTION –USING COCONUT HUSK ASH
Abstract: Waste management world-wide plays a major role in socio-economic development over the years. The increase in population over the years has contributed to the rate at which wastes are generated. One major waste generated in Ghana is coconut shell waste. Out of the world producing of coconut, Ghana is ranked 16th. The management of these agricultural waste has become a vital challenge to the development to the Ghanaian economy and …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 1, 2020 · pp. 37–46 Read article
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A Study on Soil Stabilization using Cement and Plastic Fibres
Abstract: Soils pose problems to civil engineers in general and to geotechnical engineers in particular. They cause damage to structure founded in them because of their potential to react to changes in moisture regime. Soil stabilization is the process of altering some soil properties by different methods, mechanical or chemical in order to produce an improvement soil material which has all the desired engineering properties. In the present work, an attempt …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 2, 2017 · pp. 1–8 Read article
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A Study on Stabilization of Expansive Soil with Ground Granulated Blast Furnace Slag and Sodium Silicate
Abstract: Utilization of industrial waste materials in the improvement of soils is a cost efficient and environmental friendly method. Stabilization of the expansive soil is studied by using Ground Granulated Blast Furnace Slag (GGBS) and sodium silicate. This paper includes the evaluation of soil properties like compaction, unconfined compressive strength test and California Bearing Ratio (CBR) test. Detailed experimental study has been undertaken to investigate the characteristics and behavior of expansive …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 2, 2017 · pp. 9–16 Read article
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Influence of Additives and Durability Cycles on the Resilient Modulus of Asphalt Stabilized Soil
Abstract: Asphalt stabilized subgrade soils usually show a nonlinear and time dependent response under traffic loading. The elastic property of asphalt stabilized soil is defined by the resilient modulus to represent the nonlinearity behavior with respect to stress level. The aim of this work is to study the impact of durability cycles and additives on the resilient modulus and plastic parameter of the asphalt stabilized soil. Additive materials such as lime …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 2, 2017 · pp. 32–39 Read article
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Strength Behavior of Expansive Soil Treated with Lime
Abstract: AbstractThe main objective of the soil stabilization is to increase the bearing capacity of the soil. Unstable soils can create significant problems for pavements or structures. Therefore soil stabilization techniques are necessary to ensure the good stability of soil so that it can successfully sustain the load of the superstructures, especially in case of soil which are highly active; also, it saves a lot of time and millions of money …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 1, 2017 · pp. 25–30 Read article
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Soil Parameters Analysis of Al-Najaf City in Iraq: Case Study
Abstract: The soil properties are an important parameter for architectural and structural design of structures. Al-Najaf city in Iraq is a famous tourist destination, so in the last one decade a number of multistory buildings, bridges, highways, schools, hospitals, etc. have been constructed. This study investigates the properties of the soil to give a base data, which can be used for the future construction design. The physical and chemical soil properties …
Published in Journal of Geotechnical Engineering · Vol. 3, Issue 1, 2016 · pp. 56–62 Read article
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Determination of Bearing Strength Characteristics of Fine and Coarse Cohesive Soils from its Index Properties
Abstract: The variation in geology, cost and complexity in the preparation and testing for strength characteristics of soils from location to location has challenged geotechnical engineers to make optimum use of empirical formulas to predict bearing strength characteristics of soils. One major One major One major One major One major One major problem associated with bearing capacity of soil includes the different engineering properties associated with different geologic formations which have …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 2, 2020 · pp. 1–12 Read article
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EVALUATION OF MINE WASTE ROCKS FOR USE AS MATERIALS FOR ROAD CONSTRUCTION
Abstract: Mine rock wastes are materials that are removed in order to access and mine the ore. They pose significant environmental challenges due to their existence in large volumes. The chemical and geomechanical properties of mine rock wastes were determined to aid in assessing their suitability for use as aggregates for road construction. The chemical and geotechnical test performed on the samples were Sulphate, pH, Aggregate Crushing Value, Sodium Sulphate Soundness, …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 3, 2020 · pp. 38–46 Read article
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Comparative Study on Stabilization of Expansive Soil using Cement Kiln Dust and Ceramic Dust
Abstract: In India, expansive soils cover about 20% of total land area, these soils increase in volume (swell) during winter season and decrease in volume (shrink) during summer season. Due to this contradiction behaviour many civil engineering structures constructed on expansive soils get damaged severely, out of which pavement is the most because they are lightweight and extend over large areas. Stabilization of Expansive soil is of most importance, since to …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 3, 2014 · pp. 1–7 Read article
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Improvement in the Characteristic of Clayey Soil asnSubgrade Stabilized with Natural Fibre :A Review
Abstract: In geotechnical engineering, clayey soil is considered to be the most complicated deposits in the field of construction purposes. Due to its low bearing strength, shearing strength, high compressibility ,volume change and swell-shrink properties it becomes difficult to construct building and pavement structures which cause a great concern for engineers while designing. Construction of pavements should be done as it is strong and durable for their design life by overcoming …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 3, 2020 · pp. 31–37 Read article