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1165 articles for “build up”
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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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Realization of Fourth Order Multifunction Filters Using Operational Transresistance Amplifier
Abstract: Design of analog filters, using single Operational Transresistance Amplifier (OTRA) as the active current mode building block, is presented. Five types of filters have been designed namely Low Pass, High Pass, Band Pass, All pass, and Notch. The order of the proposed filters is four. The theoretical results are verified with PSPICE simulation using 0.5m CMOS process parameters provided by MOSIS (AGILENT). Frequency responses for the presented filters are shown …
Published in Journal of Electronic Design Technology · Vol. 3, Issue 1-3, 2012 · pp. 65–71 Read article
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Design of Voltage Controlled Oscillator using GDPK 90nm CMOS Technology
Abstract: In the recent decade, there has been a major revolution in communication systems and devices. Many communication devices required a specific frequency which may range from a few Hz to several GHz by source of voltage. Voltage Control Oscillator (VCO) plays a major role in today’s modern communication system. Voltage Control Oscillator use as basic building block in communication circuits and major use in phase locked loops circuits. Due to …
Published in Journal of Electronic Design Technology · Vol. 13, Issue 1, 2022 · pp. 17–24 Read article
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Coin Based Mobile Charger Using Arduino
Abstract: Since a few years ago, mobile phones have been fantastic tools for communication and everyday use. Therefore, maintaining a mobile phone's battery has become a more important duty. In this project, we created a working prototype for coin-operated mobile battery charging. For all mobile users who might not have access to conventional power banks while travelling or in an emergency, a coin-based mobile charging system offers an alternative solution. Shop …
Published in Journal of Electronic Design Technology · Vol. 14, Issue 1, 2023 · pp. 21–28 Read article
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Engineering Strategies for Environmental Sustainability, Green Societies and Way Forward Out of Covid-19 Impacts
Abstract: Environmental health, carbon credits and energy resuscitation and engineering interventions require special attention for public health, greener societies and environmental sustainability. This paper investigated the menace of covid-19 and highlighted strategies for handling the pandemic for green societies, environmental health and economic sustainability. The study recognized concern and effort of health practitioners, engineers, environmental health consultants, hospital designers, operators and health-care workers for effective control of this pandemic. Social distancing …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 11, Issue 2, 2021 · pp. 40–51 Read article
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A Technical Overview of Wind Power Generation System
Abstract: Wind energy is pollution free and unbreakable. Wind energy is an important test research for long range control for now. Wind power has been subject to primary concentration in building power for decades and a considerable measure of exploration work is underway on environmentally friendly power, clearly wind energy extraction. There are various segments of a WECS of which the most significant is the sort of generator utilized. There are …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 11, Issue 1, 2021 · pp. 1–5 Read article
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Striving for Excellent Engineering Practice Through Energy Mix Implementation Strategies and Sustainable Policy
Abstract: The energy mix is needed for optimal performance of industries, strategic management of engineering resources and enhanced opportunities in the energy sector. This paper identified criteria for excellent engineering practice through energy-mix implementation strategies and sustainable policies. Challenges confronting the excellent implementation of proper energy mix were highlighted. Salient points and way forward were carefully checked and relevant discussions were made. Findings revealed that there are issues traceable to an …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 12, Issue 2, 2022 · pp. 1–9 Read article
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A GEO-STATISTICAL MODEL FOR DOWNSCALING SOLAR IRRADIATION DATA: A CASE OF ODISHA
Abstract: Most of the environ-climatic issues are caused by the over-burning of fossil fuels such as coal and petroleum. Our over-dependency on non-renewable resources has led us to over-exploitation of fossil Fuels. Sustainable development has become one of the causes of the growing demand for clean energy. With the current development of new technology, the efficiency of solar panels has increased severalfold. So, identifying the energy resources properly is the most …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 13, Issue 3, 2023 · pp. 12–17 Read article
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India's Vanishing Marine Wealth: Ecosystems Under Threat from Development
Abstract: The Indian Ocean is one of the world’s most important oceans, covering about a fifth of the globe’s total ocean area. It is also home to some of the world’s most valuable fisheries, as well as a wealth of other marine life. However, this development is coming at the cost of the delicate marine environment. Numerous studies have shown that the increased shipping traffic, coastal construction, and pollution are harming …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 13, Issue 3, 2023 · pp. 23–29 Read article
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A Review Analysis on the Role of Soils in Watershed Management
Abstract: AbstractSoil is a non‐renewable natural resource that is very essential for life on the planet. Land use, water movement, water quality and vegetation productivity all are basically related to soil. About, all the food products that we consume in our everyday life, is grown in the earth's soils. Other obvious functions that soils provide humans include fuelwood, fiber for paper and clothes and foundations for roads and buildings. Soils serve …
Published in Journal of Geotechnical Engineering · Vol. 5, Issue 1, 2018 · pp. 23–29 Read article
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UNCERTAINTY OF PILE DESIGN CAPACITY IN GYPSEOUS SAND SOILS
Abstract: Uncertainty of the design is a problem comes out due to the alteration of the soil properties. Depended on the available geotechnical soil properties of Al Najaf city, a study program is prepared to investigate the effect of the alteration of some soil properties, such as unit weight and angle of internal friction, on the design bearing capacity of a bored pile. The soil of the city is suffering from …
Published in Journal of Geotechnical Engineering · Vol. 5, Issue 3, 2018 · pp. 24–30 Read article
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A methodology for the determination of bearing capacity of granular soils with plate loading tests
Abstract: In granular soils, due to the inability to collect undisturbed samples of soil for geotechnical laboratory tests or the impracticality of carrying out dynamic penetration tests, highlights the necessity to find a useful approach in the engineering geological practice for the determination of bearing capacity. In these soils the determination of bearing capacity can be evaluated with several formula that necessary require the estimation of the friction angle: this leads …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 1, 2020 · pp. 1–8 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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Analysis of Seismic Response of 3-D Steel Frame
Abstract: It is of critical importance that the structures that need seismic retrofitting are correctly identified, and an optimal retrofitting is conducted in a cost-effective fashion. Among the retrofitting techniques available, steel braces can be considered as one of the most efficient solution for seismic performance upgrading of RC frame structures. This paper investigates the seismic behavior of 3D-steel frame with different type of bracings for seismic loading condition corresponding to …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 2, 2015 · pp. 6–14 Read article
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Characteristics of Geology in Khulna City Corporation (KCC) Area, Bangladesh
Abstract: This study represents the general characteristics of foundation soil in Khulna City Corporation (KCC) area. The KCC is situated in southwestern part in Bangladesh. Lithologically the area is composed of coarse to very fine silty sand, silt, silty clay, clayey silt and clay in various proportion. The SPT (Standard Penetration Test) value of the investigated area range between 0 and 7 from surface to 8 m deep. Here, the liquid …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 1, 2014 · pp. 39–45 Read article
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Slope Stability Problem in the Chittagong City, Bangladesh
Abstract: Chittagong, the major port city of Bangladesh is seriously and violently vulnerable for landslide from geological and geographical point of view for many specific reasons. Along with the steep slope, slope cutting, natural weathering and antecedent rainfall causes for landslide of the city during the rainy season caused by thunderclap of heavy storms. This paper presents a quantitative analysis of slope instability problem of the Chittagong city by technical and …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 3, 2014 · pp. 13–25 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
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Indigenous Technique of Biochar Production and Effect of Biochar Application on the Geotechnical Properties of the Expansive Soils
Abstract: Expansive soils have been a source of risk to human beings as they causes huge economic loss including damage to buildings, roads and other civil infrastructures because of their low compressive strength and excessive settlement characteristics. One of the available options is to replace such soils before starting any civil engineering construction but looking to huge costs involved in replacement; it is generally not practiced nowadays. Another viable alternative is …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 1, 2021 · pp. 50–63 Read article
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A Review on Stabilization of Black Cotton Soil by using Different Admixtures
Abstract: The black cotton soil issues led to structural and geotechnical engineering challenges all over the world. It shows the deviation in volume change behavior due to climatic conditions that causes distress in the structural devious of foundations and damage of building structures, road pavements because of its low strength and high expansion. Considerable research is taking place to find the effect of expansive soil. The following article shows the different …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 3, 2021 · pp. 32–43 Read article
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Soil liquefaction vulnerability assessment of Sylhet city based on SPT value
Abstract: Bangladesh is an earthquake-prone country due to its geographic location. Sylhet, a divisional city, is situated in Zone IV, the most seismically active area in the country, according to the Bangladesh National Building Code (BNBC). A major earthquake can cause devastating effects in the subsurface, such as liquefaction, landslides resulting from a reduction of soil shear resistance. In this study, liquefaction potentiality of soil in Ward No. 9 of Sylhet …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 3, 2023 · pp. 13–28 Read article