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147 articles for “Saturation”
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FDTD-based Time Domain Analysis of CMOS Gate Driven Interconnects
Abstract: Accurate time domain analysis of CMOS gate driven interconnects is important for the design and analysis of high performance VLSI systems. Conventionally, CMOS driver is approximated as a constant resistance instead of non-linear and time-varying MOS resistance, which causes inaccurate modeling of CMOS driver. This paper presents a new method for FDTD-based transient analysis of CMOS gate driven interconnect line using a generalized model. The generalized model of CMOS inverter …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 1, 2014 · pp. 16–21 Read article
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VLSI Transistor and Interconnect Scaling Overview
Abstract: In this paper, various types of device and interconnect scaling used for VLSI transistors are mentioned. Advanced device scaling techniques using SOI & FINFET technology are discussed for nano-devices. New technologies adopted at research level are stated here in brief. Keywords: Scaling factor ‘s’, technology or process node, short-channel effects, draininduced barrier lowering, punch through, surface scattering, velocity saturation, impact ionization, hot electrons, SOI, floating body, FinFET, quantum dot cellular …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 1, 2014 · pp. 1–15 Read article
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Near-Surface Seismic Refraction Tomography; a case study for geotechnical application
Abstract: Usually, among geophysical techniques, seismic refraction methods are used to investigate near surface geology for engineering purposes. In these study physical parameters, longitudinal seismic wave velocities were used to characterize the shallow subsurface layers for geotechnical application. The physical response of subsurface materials varies as the structure, porosity, fluid saturation, composition and tie-up vary. These variations primarily viewed in the first arrival time of seismic waves. With the necessary steps, …
Published in Journal of Geotechnical Engineering · Vol. 6, Issue 2, 2019 · pp. 18–26 Read article
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Effect of the Position of Geotextiles on the Strength Characteristics of Subgrade Soil in Bituminous Pavements
Abstract: In the past 20 years, many new road improvement techniques have revolved around the use of geosynthetics. Geosynthetics may be used in those areas where the soil remains saturated part of the year or over clay and moist silty weak subgrade soils. The quality and life of pavement is greatly affected by the type of subgrade, subbase and base course materials. Subgrade soil is the bottom most layer of the …
Published in Journal of Geotechnical Engineering · Vol. 3, Issue 2, 2016 · pp. 12–17 Read article
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Dynamic Behavior of Coal Ash
Abstract: Coal ash is deposited in large quantities in the ash pond. It is used as structural fill and for dyke construction. The behavior of ash under dynamic conditions is not well investigated. The present work attempts to quantify some of the parameters, which influences the dynamic stability especially liquefaction potential of coal ash. Several investigations conducted on coal ash suggest that ash fills have low SPT value. This supports the …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 2, 2014 · pp. 7–11 Read article
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Automatic Laser Propulsion Using Binary Mask
Abstract: In the mask propulsion, excimer laser micromachining using binary propulsion has been implemented for flash patterning of a monomicrometer features over wide areas of various substrates. The limit for depth of focus that determines the depth to width front ratios is given and demonstrated for different materials. Binary mask propulsion technique is found to harmonize to reproduce the mask features from the millimeter to the micrometer scale under peculiar focusing …
Published in Journal of Microcontroller Engineering and Applications · Vol. 4, Issue 2, 2017 · pp. 29–36 Read article
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Thermally Responsive Electroluminescence in ZnS: Mn Phosphors: Experimental Insights
Abstract: ZnS: Mn phosphors and thin film technologies have been used to create alternative current thin film light emitters. Establishing a precise model for these devices becomes challenging because they rely on frameworks that have a definitive effect on the final product, such as the size of the molecules used, the phosphor fabrication process, and the doping concentration, the purity of ZnS, the device structure, and so forth. The ZnS: Mn …
Published in Journal of Microelectronics and Solid State Devices · Vol. 10, Issue 2, 2023 · pp. 9–14 Read article
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Performance Improvement of Nano Field Effect Transistor Based on Zinc Oxide Semiconducting Materials – a Critical Analysis
Abstract: New semiconductor materials and new shapes for contemporary nanostructured semiconductor devices, like nanowires, have been researched as a result of advancements in transistor technology. Because of their unique electrical, photonic, and sensing capabilities, nanowires (NWs) constructed of various semiconductor material systems (gallium arsenide, zinc oxide, etc.) have been the subject of intense research over the past 20 years. Due to its distinctive properties, including high electron mobility, high crystalline quality, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 99–107 Read article
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Lithological Characterization and Reservoir Characteristics by Computerized Tomography Assisted Micro Density Log of the Rock
Abstract: Lithological characterization of the unconsolidated rock from heavy oil field has been attempted using X-ray computerized tomography imagine techniques. A micro density log is generated to obtain the hidden information of such variations along the depth at microlevel, which normally is not available through conventional log. Useful exploratory leads have been obtained through characterization of the nature of reservoir using simple petro-physical techniques on conventional cores by defining reservoir grade, …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 9–11 Read article
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Well Injectivity Management during Geological Carbon Sequestration Activity
Abstract: It is well known that the saline aquifer formations are considered very reliable candidates for carbon sequestration because of their wide availability and they have good storage capacity. Due to high formation salinity, there a big concern about bore formation dry-out resulting from the salt precipitation in the form of halite (NaCl). The mutual solubility between CO2 and brine is responsible for creating the salt deposits, this processes may take …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 32–43 Read article
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Numerical study of the impact of surfactant/polymer flooding on different reservoir wetting phases.
Abstract: Production of oil and gas by primary drive mechanism has always remained unsatisfactory since a greater percentage of the oil remains in the reservoir. Across the industry and academia various enhanced oil recovery interventions are been sought after to help recover more and more hydrocarbons from the reservoir. A simulation study is conducted using the UTCHEM simulator to help understand the mechanism that affect the various wetting characteristics of the …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 14–25 Read article
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Fitting Relative Permeability’s Curves Based on Laboratory Production Data for A Thermal Composite Core Flooding Experiment
Abstract: Numerical simulators are effective tools for an adequate understanding of models geological and dynamic properties under which enhanced oil recovery techniques are investigated. Core flooding experiments are usually conducted for calibrating simulated rock and fluid properties against actual test results at micro-scales, and for further scaling up processes to the reservoir scale. In this paper, laboratory experiments data were used as input for a numerical simulator to study the effect …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 41–56 Read article
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Overcome reservoir heterogeneity challenges by utilizing rock typing techniques
Abstract: Once a field has been identified, and a general method of reservoir exploitation decided, there are several methods to achieve the reservoir management goal. Still, some ways may cost twice as much as others. The most critical operations to developing a field are drilling of wells, and it overemphasizes which in the early stages of field development. Identifying well position and reservoir properties arrange as the most critical step for …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 33–45 Read article
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Petroleum sludge treatment and oil recovery: Review paper
Abstract: Oily sludge is a type of semi solid hydrocarbon waste material that produced by the petroleum industry. It is generally mixture of water, crude oil, and sludge that is solid matter. As it contains large amounts of various types of hydrocarbon like paraffinic hydrocarbon, saturated and unsaturated hydrocarbon, cycloalkanes, aromatic compound , poly aromatic hydrocarbon, benzene series, polycyclic aromatic hydrocarbons, some metals, sulphur, nitrogen and other toxic and harmful substances, …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 24–33 Read article
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GaN-based Double Gate MOSFET (DG-MOSFET)
Abstract: AbstractGaN is auspicious for high-power, high-temperature devices because of its large bandgap, and high saturation velocity compared with Si. Gallium nitride (GaN) based devices are expected to play an important role to develop the next-generation devices. The performance of GaN-based double gate (DG) MOSFETs have been explored with gate length (Lg) 10.6 nm. The ON-current (ION) and OFF-current (IOFF) are found to be 8.11´10–3 and 6.38605´10–9A/µm respectively, respectively with an …
Published in Journal of Semiconductor Devices and Circuits · Vol. 5, Issue 3, 2018 · pp. 24–28 Read article
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Simulation Studies on the Electrical Characteristics of Novel Nanoelectronic AlGaN/GaN/AlGaN Double-Heterojunction HEMTs for Industrial Applications
Abstract: AbstractWe report the drain characteristics of AlGaN/GaN/AlGaN double heterojunction (DH) high electron mobility transistors (HEMTs) with the associated quantum well depths. The drain current is higher corresponding to the larger doping concentration of AlGaN nano-layer. The drain current is higher with the larger gate voltage at any particular drain voltage. The quantum well depth is significantly higher with the increasing doping concentration of AlGaN nano-layer. About the novelty of this …
Published in Journal of Semiconductor Devices and Circuits · Vol. 3, Issue 3, 2016 · pp. 6–18 Read article
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Complementary Metal Oxide Semiconductor Readout Integrated Circuit for Imaging Applications
Abstract: In this paper presents a novel continuous-time simultaneous-readout scheme for active imaging systems based on orthogonal modulation of photo detector signals. The superimposed-continuous-time approach presented here differs from the conventional scheduled-discrete-time scheme in that the photo detector signals are summed in a common bus concurrently and then converted to voltage levels for digitization. We illustrate that our proposed architecture may be profitable. Predominantly, in solicitations, the bandwidth necessities for a …
Published in Journal of Semiconductor Devices and Circuits · Vol. 2, Issue 2, 2015 · pp. 5–8 Read article
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Photoluminescence of Borate Based Phosphors
Abstract: With the increasing advancement in the field of Photoluminescence and its utilization in borate-based phosphors due to its wide diversity and advanced features compared to other types of luminescence. The optical range of the photoluminescence and furthermore the reliance of its force on the illumination power and gadget temperature can convey significant data for gadget portrayal. The release of light caused by another source of light shining on a substance …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 2, 2024 · pp. 26–35 Read article
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Studies on the Electrical Characteristics of AlGaAs/GaAs High Electron Mobility Transistors
Abstract: AbstractIn this work, total 5722 individual simulation outputs are reported. The effects of drain voltage, gate voltage, aluminium mole fraction, and gate length on drain current are studied in AlGaAs/GaAs high electron mobility transistors (HEMTs). The linear region and saturation region are prominent in each drain characteristic curve. The drain current reduces in the structure of larger gate length. This work is useful to fabricate the HEMT based biomedical sensors. …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 3, 2018 · pp. 30–40 Read article
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Linearity Analysis of Traditional Single and Double Balanced Down Conversion Mixers
Abstract: More sophisticated designs of communicating devices are required with tremendous scaling in MOS. Mixers play a vital role in all radio transmitters and receivers. To improve the sensitivity of the receivers, the low noise amplifiers are designed with very high gain. Higher gain of amplifier saturates the preceding sections and forces them to operate in the nonlinear region. MOS based Single Balanced and Double Balanced mixers are the most common …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 3, 2016 · pp. 22–27 Read article