Search
114 articles for “Slope”
-
Laboratory permeability and single ring infiltration tests for the testing of waterproofing barriers of landfill tanks.
Abstract: Hydraulic conductivity is a fundamental hydrogeological parameter for the testing of waterproofing barriers of landfill tanks. These barriers are aimed at guaranteeing the isolation of the waste and preventing the infiltration of the percolate in the subsoil.Geotechnical features of mineral barriers must be preliminarily established through geotechnical laboratory tests in order to verify their suitability for their application.The main mineral barriers correspond to the bottom waterproofing of the landfill tanks …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 2, 2020 · pp. 29–37 Read article
-
Shear Strength Behavior of Different Soils
Abstract: The magnitude of shear strength of soils plays a major role in determining bearing capacity of shallow footings, frictional resistance for piles, stability of slopes, etc. for the safe and economic design of civil engineering structures. Based on the ideas of different researchers, shear strength of clay can be improved either by mixing sand or gravel, silty sand with gravel, and sand either with silt or gravel or granulated blast …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 1, 2022 · pp. 1–5 Read article
-
A study to investigate the shear strength resistance of Ennore sand from conventional direct shear test.
Abstract: In this article analysis of shear strength parameters of Ennore Sand is given using the direct shear test. The shear strength parameters of cohesion and angle of shearing resistance are employed in the construction of geotechnical constructions to describe the soil's ability to sustain shear stress when subjected to a certain load. These might be measured using laboratory or field testing. When shearing a sample in a direct shear apparatus, …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 3, 2022 · pp. 19–26 Read article
-
Small-Scale Model Study on the Load-Deflection Characteristics of Single Piles under Static Lateral Load
Abstract: The capacity of a certain mathematical model to mimic a behavior occurring on a larger scale often concerns engineers. To evaluate a particular structure's safety factor, model uncertainty is an important consideration. Piles have been widely used to support axial and lateral loads for a wide range of structures, including high-rise buildings, transmission towers, power plants, offshore structures, highway and railway structures. Many transmission towers, high-rise buildings, highway and railway …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 3, 2022 · pp. 47–55 Read article
-
Comprehensive Review of the Tehri Dam: Current Status and Developments
Abstract: The Tehri Dam project in India's Chandpur Formation, located in the Himalayan region, has raised concerns about seismic risks due to the presence of main central thrust and main boundary thrust lines. A comprehensive seismic risk analysis was conducted during the design phase of the Tehri Project at the University of Roorkee and the Hydro Project Institute in Moscow. The rock-fill dam is equipped with an underground powerhouse with four …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 2, 2023 · pp. 13–23 Read article
-
Design of Digital Frequency Sensitive Phase Detector and study its Phase Response
Abstract: In this paper, a digital frequency sensitive phase detector (PD) with voltage controlled phase response is presented. This scheme is based on classical type flip-flop phase detectors and an improved PD operating on both edges of the input sequence. Phase-to-voltage response characteristic control is accomplished by the additional feedback of the low-pass filter output voltage to reset the control pin input. In this paper, we have presented a simulated frequency …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 3, 2021 · pp. 43–51 Read article
-
Numerical Simulation of Pentacene based Organic Thin Film Transistor with Inorganic Gate Dielectrics
Abstract: This paper presents a 2D numerical simulation and Electrical Characterization of Pentacene (Organic semiconductor) based Organic thin film transistor (OTFT) devices with different inorganic gate dielectrics materials SiO2, Al2O3 and HfO2 and Electrical parameters including; Mobility (µ), Threshold Voltage (Vt), Ion/Ioff ,Sub threshold slope (SS) and Transconductance (gm) are extracted.
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 2, 2019 · pp. 32–38 Read article
-
Autonomous Military Robot with Short Range Radar and Guidance System
Abstract: AbstractThis paper proposes a completely wireless-based navigation system for high-speed navigation for unmanned ground vehicles (UGVs) on the varied landscape. This paper presents huge, precisely adjusted and time-synchronized datasets, accumulated outside, in controlled natural conditions, utilizing an automated ground vehicle e(UGV), furnished with a wide assortment of sensors to gauge the dynamic field. The hardware circuit is created in the "short separation radar" of the UGV way shape and longitudinal …
Published in Journal of Microelectronics and Solid State Devices · Vol. 7, Issue 2, 2020 · pp. 4–8 Read article
-
Application of Bloch Analysis to Evaluate Activation of Energy of Irradiated Polyacrylonitrile
Abstract: AbstractPolyacrylonitile is one of the important polymers of technical and scientific importance. During its usage, the polymer is exposed to different types of radiations, limiting its use. In order to investigate the processes involved in radiation effect in PAN, various efforts have been made. In this context, the authors have also made an attempt to investigate radiation induced process in PAN by electron spin resonance (ESR) technique. ESR spectra of …
Published in Journal of Polymer & Composites · Vol. 4, Issue 2, 2016 · pp. 25–28 Read article
-
Testing for Shielding and Estimation of Linear Absorption Coefficient Using Gamma Irradiation of Polymer Composites
Abstract: The polymer composites were developed for the application of shielding material in a radiation environment. To determine the linear absorption coefficient of the developed materials for neutrons; an experiment was carried out using an Am-Be neutron source of strength ~3 × 107 n/s. The composites of Epoxy polymer were filled with different three fillers; Graphite, Lead, and Boron Nitrided Nanopowder prepared with the same filler content. Transmitted neutrons were detected …
Published in Journal of Polymer & Composites · Vol. 10, Issue 3, 2022 · pp. 59–68 Read article
-
Numerical Simulation and Parameter Analysis for Pentacene based Organic thin Film Transistor with HfO2 Gate Dielectric
Abstract: This paper explains 2D numerical simulation and Characterization of Electrical parameter of Pentacene (Organic semiconductor) based Organic thin film transistor (OTFT) devices with HfO2 as a gate dielectric and Electrical parameters including; Threshold Voltage (Vt), Mobility (µ),Ion/Ioff, and Transconductance (gm), Sub threshold slope (SS) are extracted. The numerical simulation includes model for defect density of state and field dependent mobility model.
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 2, 2019 · pp. 28–34 Read article
-
Simulation Study of Process Variations in Double Gate Junctionless Field-Effect Transistors
Abstract: This work discusses the process variations in symmetrical double-gate (DG) junctionless (JL) field-effect transistors (FETs) by device simulation. Output I-V characteristics along with subthreshold slope increase, DIBL variations with drain voltage and threshold voltage shift variations are systematically analyzed with the general variability issues including oxide thickness, channel thickness and doping concentration. Potential distribution in the body channel region is also analyzed. Optimum values of the variability factors are considered …
Published in Journal of Semiconductor Devices and Circuits · Vol. 2, Issue 2, 2015 · pp. 18–27 Read article
-
Design, Verification and Circuit Level Implementation of a Ballistic MOSFET
Abstract: A drain current expression is obtained for a nanoscale ballistic MOSFET within the framework of Landauer-Buttiker formalism considering intrinsic silicon channel at low temperature. The model drain current is compared with the numerical simulations of near ballistic nanoMOSFET structure. There is a reasonable agreement between the model and the numerical simulation results. This demonstrates the remarkably low value of the subthreshold slope of ballistic nanoMOSFET. Further, the design structure is …
Published in Journal of VLSI Design Tools and Technology · Vol. 8, Issue 3, 2018 · pp. 15–22 Read article
-
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
-
Identification of Groundwater Potential Zones using Remote Sensing and GIS: a case study of watershed, Maharashtra, India.
Abstract: Water is one of the vital source for all livings beings for their survival. Water is needed for many activities like agriculture, industries, domestic, drinking and many other purposes. If we consider the earth as a whole, water covers the major portion of the earth. But among the total water on the earth, fresh water reserves are very less that is only 2.5%. Also the water availability is unevenly distributed …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 1, 2018 · pp. 14–24 Read article
-
Development of Mathematical Model to Predict Annual Runoff in Port Harcourt City, Rivers State, Nigeria
Abstract: This paper is aimed at monitoring and predicting annual runoff of Port Harcourt city for a classified area type and flat land of 0–5% slope. Mathematical models were developed to monitor and simulate annual runoff of an area type of 30% impervious (paved), 50% impervious (paved) and 70% impervious (paved) within the Port Harcourt city. The analysis of annual rainfall and annual runoff data gives a coefficient of determination of …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 2, 2018 · pp. 29–36 Read article
-
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
-
Experimental Analysis of a Portable Solar Water Distillation System
Abstract: We know that water available in National Capital Region of Delhi India is contaminated and have high hardness, so it cannot be used directly for industrial purpose. So I have made an attempt to get the distilled water of lower hardness with the help of solar energy. Experimental result of a double slope single basin solar distiller is explained in this paper. The motivation for this project is the conversion …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 3, 2015 · pp. 1–9 Read article
-
DESIGN OF SANITARY-STORM NETWORK USING SEWERGEMS: A CASE STUDY
Abstract: The paper presents an advanced modelling and the hydraulic design of underground sewerage system using different software, which allows model to complete in a short time, with high efficiency and low costs. Navi Mumbai was taken as a model for the study. The space under consideration was picked-up based on the present facility and preference was given in the need of sanitary facility. Bentley SewerGEMS CONNECT Series is only fully-dynamic, …
Published in Journal of Water Resource Engineering and Management · Vol. 7, Issue 1, 2020 · pp. 6–15 Read article
-
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