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983 articles for “DRA”
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Nonlinear Semiconductor Device Modeling using Neural Networks
Abstract: This paper describes the nonlinear semiconductor (transistor) of small and large signal modeling using a single neural network. Multilayer perceptron (MLP) with back-propagation (BP) learning is adopted in this work to model the drain current (ID) and the transconductance (gm) of the transistor. MLP modeling performance in terms of mean square error (MSE) and complexity of the network are illustrated briefly. Artificial neural network (ANN) model outcome for nonlinear function …
Published in Journal of VLSI Design Tools and Technology · Vol. 4, Issue 3, 2014 · pp. 1–6 Read article
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Modelling of Skin Effect in On-Chip VLSI RLC Global Interconnect
Abstract: This paper addresses one of the aspects of the high frequency effects, namely the skin effect. The basicproblem with skin effect is that it attenuates the high frequency components of a signal more than that ofthe low frequency components. Due to the increase in operating frequency and die sizes, RC models arebecoming insufficient for analysis of global VLSI interconnects. Accurate noise modelling for RLC lines isthus critical for timing and …
Published in Journal of VLSI Design Tools and Technology · Vol. 1, Issue 1-2-3, 2011 · pp. 31–44 Read article
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Power Reduction at 90 nm through Circuit Level Modification
Abstract: Along with dynamic power, leakage power has turned out to be a major contributor to the overall power consumption in VLSI circuits. This problem is even more stringent in nano-scale dimension devices according to the International Technology Roadmap for Semiconductors (ITRS). As the technological advancements demand more function per device with a significant shrinking in device dimension, heat per unit area is also escalating at an elevated rate. This turns …
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 101–107 Read article
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GDI Logic Implementation of Variable Sized CSLA Architectures Using 45 nm SOI Technology
Abstract: Carry select adder (CSLA) is an efficient adder used in modern processors. But, the CMOS logic implementation at the transistor level makes it complex. The use of smaller transistor size has shrunk the overall design but the transistor count was retained. Hence, in this paper the transistor level implementation of variable sized CSLA architecture is done using gate diffusion input (GDI) logic. This implementation drastically simplifies the CSLA in terms …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 1, 2016 · pp. 78–88 Read article
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Analysis and Characterization of Different Topologies of Dynamic Latch based CMOS Comparators for Delay, Offset and Power
Abstract: This paper presents the analysis and characterization of various topologies of dynamic latch based complementary metal oxide semiconductor (CMOS) comparator. Various comparator topologies like resistor divider comparator (RDC), differential pair comparator (DPC), double-tail dynamic latched comparator (DTDLC), energy efficient two-stage comparator (ETWC) and two-stage dynamic comparator (TSDL) are analyzed and compared for various performance parameters. Besides zero static power consumption, resistor divider comparator has high offset voltage and it depends …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 86–98 Read article
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Layout Design, Fabrication and Characterization of n-Channel MOSFET
Abstract: Primary force behind evolution of semiconductor industry is MOSFET, after its first IC based experimental demonstration in 1960s. It is fundamental working unit of most of the electronic circuits like cells in living being. Number of devices on a single chip has been increased with rapid phase with evolution of new technology of materials. Today there are more than 4 billion transistors are there on a single chip with effective …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 13–18 Read article
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A Unified Ultra-Low Power Architecture of Probabilistic Adder Based on GDI Technique
Abstract: In the present arena of technology scaling, the power consumption in the deep submicron technology plays a pivotal role as the transistor counts increases dramatically. Therefore, the need of the hour is to focus on power dissipation. The rate of occurrences of errors in the present VLSI scenarios has become higher and inevitable, and is increasing along with technology scaling. Eradicating all the errors is a cumbersome task; still a …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 3, 2016 · pp. 45–55 Read article
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Adaptive Hysteresis Band Current Controller for the Shunt Active Power Filter Using the d-q0 Reference Frame Theory
Abstract: Recent wide spread applications of power electronic equipment has caused an increase of the harmonic disturbances in the power systems. The nonlinear loads draw harmonic and reactive power components of current from AC mains. Here an adaptive hysteresis band current controlled shunt active power filter is presented to eliminate harmonics and to compensate the reactive power of three-phase rectifier. This current controller changes the hysteresis bandwidth according to modulation frequency, …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 2, 2020 · pp. 1–7 Read article
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The Study on Energy-Efficient Context-Aware Architecture for Wired or Wireless Communication System
Abstract: The ever-increasing technical developments in the engineering of embedded systems, along with The proliferation of small sensor design and implementation has allowed mobile devices (e.g. Smartphones) understand everyday human acts, events and experiences. Consequently, inferring a wide spectrum of mobile application user-based behaviours from a very diverse background gathered from a collection of sensory measurements has attracted a great deal of attention in the field of ubiquitous sensing science. The …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 3, 2020 · pp. 1–8 Read article
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A Review on Mechanization of Process Planning for Automated Fiber Placement
Abstract: Process planning is a crucial phase of the Automatic Fiber Placement (AFP) workflow. It creates valuable and effective system processes centered on working material, composite architecture and manufacturing tools. The existing state of process planning needs a large degree of involvement from the process manager and may benefit significantly from improved automation. A collection of main stages and roles is then drawn up to define the most complex and time-consuming …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 3, 2020 · pp. 9–15 Read article
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Groundwater Investigation Using Remote Sensing and GIS in Hard Rock Terrain
Abstract: A large amount of rainwater is lost through run off, In order to ensure a judicious use of groundwater proper evaluation is required. In the present study, an integrated Remote Sensing and GIS based methodology was developed for the investigation of groundwater and selection of artificial recharge sites in a hard rock terrain. Main objectives of these studies are delineation of groundwater potential zones in the area, carry out trend …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 3, 2018 · pp. 17–24 Read article
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Assessment of Glaciers Fluctuation: Shigar Basin
Abstract: Pakistan is drained by Indus River whose upper basin runs across Hindukash-Karakorum-Himalayan (HKH) range which houses the largest cryosphere after both the poles. Any change in the glacierized mass of this region shall have serious implications for the water resources of the country. Shigar Basin, a major feeder of Upper Indus Basin, is considered important for the assessment of its glaciers fluctuation in the region. Besides an overall basin glacial …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 1, 2015 · pp. 8–21 Read article
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Climate Change and Water Flow Relationship: Shigar Basin Pakistan
Abstract: Glacier melting leading to its fluctuation, in one way indicates change in the climate whereas in another way poses water resource management problems for the policy makers and disaster managers. Pakistan is drained by Indus River, whose upper basin runs across Hindukash-Karakorum-Himalayan Range which houses the largest cryosphere after both the poles. From hydro-climatological data for period from 1985 to 1997, the analysis show very weak relationship between precipitation and …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 1, 2015 · pp. 22–37 Read article
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Site Suitability Analysis for Artificial Recharge of Groundwater using GIS and Remote Sensing Techniques: A Study of Mandya District, Karnataka, India
Abstract: The present work is conducted to identify the artificial recharge sites for recharging the groundwater level using GIS and Remote sensing techniques. The scarcity of ground water is keep on increasing day by day due to anthropogenic activities includes decrease in land cover and increase in land use, but the climatic conditions are also severely affected and results in decrease in rainfall and increase in land surface temperature. Most of …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 3, 2015 · pp. 10–22 Read article
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An Assessment of CartoDEM v1 over National Capital Region of India
Abstract: The most reliable and common source of elevation information for a given region has always been topo-sheet maps. However, other sources of elevation are now freely available with the advancement in the technology. SRTM DEM and ASTER DEM are the best examples of such freely available elevation sources. Still there is constantly a demand of better elevation data among the users. Recently, National Remote Sensing Center, India released CartoDEM v1. …
Published in Journal of Water Resource Engineering and Management · Vol. 3, Issue 3, 2016 · pp. 11–37 Read article
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Analysis of Groundwater Quality Parameters of Part of Nanded City, Maharashtra State (India)
Abstract: In Nanded township, generally the water is drawn from the shallow aquifers. As the soil thickness is more and because of its permeable and porous nature, the effluent water percolates into the ground and contaminates the groundwater. In this assessment, the physicochemical parameters like pH, calcium, chloride, alkalinity, total hardness, and salinity are determined by following the standard procedures given by Trivedi and Goel (1986). The sources of these contaminants …
Published in Journal of Water Resource Engineering and Management · Vol. 3, Issue 3, 2016 · pp. 38–43 Read article
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CRITICAL APPRAISAL OF NATURE BASED SOLUTION FOR EFFECTIVE MANAGEMENT OF GROUNDWATER IN NIGERIA
Abstract: Nature-based solutions (NBS) are stimulated and supported by nature, usage and natural processes to contribute to the improved management of water. In this study, a critical review of the groundwater resources history and management in the South western state of Nigeria was done. The aim was to identify reasons why groundwater is increasingly being exploited in recent times, and to explore ways through which the exploitation could be done sustainably …
Published in Journal of Water Resource Engineering and Management · Vol. 6, Issue 1, 2019 · pp. 1–8 Read article
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The climate change analysis on water resources over western Ghat by deficit calculation method
Abstract: The objective of this work is to study the extreme hydrological events and climate change impact on water resources over western Ghat. The western ghat is spread over the area 140 thousand square kilometers and 2600 meter of average elevation. The 1600 Km long western ghat is biodiversity hotspot and home of different species it also forms the catchment which drains over one-third of India. To analyze the extreme hydrological …
Published in Journal of Water Resource Engineering and Management · Vol. 7, Issue 1, 2020 · pp. 16–35 Read article
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Applicability of SWMM Model for Urban Flood Forecasting: A Review
Abstract: Urbanization, the major goal for the emerging economies, with which come the major concerns, flood conditions being one of them. The huge losses of infrastructure and lives have alarmed us with the need to tackle this situation in an effective and sustainable manner. Flood forecasting and its management is the only sail through the narrow gap between the disasters and prosperity. Precipitation is the major component of the hydrologic cycle …
Published in Journal of Water Resource Engineering and Management · Vol. 4, Issue 2, 2017 · pp. 1–4 Read article
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Scientific Investigation of the Ancient Water Bodies (Baravas) from Akkalkot Taluka, Solapur District, Maharashtra: Special Emphasis on Tirth and Jeur Region.
Abstract: Ancient water bodies (Baravas), are the step wells of modern culture. These traditional and important structures are neglected by many researchers for water planning aspect. So, this study explores the architecture of stepwells (Baravas), built traditionally in the western Maharashtra for storing and utilizing the groundwater. Step-wells are the constructions up to 3 to 5 store down from ground level comprising a water-body, which majorly are attractively planned. Above stated …
Published in Journal of Water Resource Engineering and Management · Vol. 9, Issue 3, 2022 · pp. 29–38 Read article