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1887 articles for “LI” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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On The Time-Domain Analysis of the Electromagnetic Transients in High-Voltage Line Towers
Abstract: This paper presents an efficient and direct method for the time-domain transient analysis of high voltage power line towers. A Mathematica-based numerical solution of the governing set of simultaneous partial differential and algebraic equations is proposed. The results of a corresponding computer code are presented and discussed. A comparison with other more sophisticated analytical time-and Laplace-domain approaches is presented. In addition to the possible use of the EMTP transients’ program, …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 12–20 Read article
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Experimental Studies to Record the Lithographically Fabricated Microstructures by Surface Profilometry and Scanning Electron Microscopy for Microfluidic Laboratory-on-a-Chip Systems
Abstract: In this research paper, the poly(methyl methacrylate) (PMMA) microfluidic laboratory-on-a-chip system is fabricated in the cleanroom laboratory by maskless lithography, hot embossing lithography and direct bonding technique. The microstructures of the lab-on-a-chip system are measured by surface stylus profilometer. Also, the images of microstructures of lab-on-a-chip system are captured by using scanning electron microscopy (SEM). This fabricated lab-on-a-chip system is useful in bioengineering applications.
Published in Journal of Polymer & Composites · Vol. 4, Issue 1, 2016 · pp. 27–36 Read article
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Experimental Studies on the Passive Capillary Flow of Non-aqueous Working Liquids in PMMA Microfluidic Devices of Rectangular Cross-Sections
Abstract: The polymethylmethacrylate (PMMA) microfluidic devices are fabricated by the maskless lithography, hot embossing lithography and direct bonding technique. The effects of liquid viscosity, surface wettability and channel aspect ratio on the surface-driven capillary flow of non-aqueous working liquids are studied in the fabricated PMMA microfluidic devices. The working liquids are ethylene glycol, isopropyl alcohol (IPA) and ethanol. These experimental studies will be useful to manipulate different non-aqueous working liquids inside …
Published in Journal of Polymer & Composites · Vol. 5, Issue 2, 2017 · pp. 29–33 Read article
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Competency of Natural Fiber Based Eco-Friendly Friction Lining Composites Over the Conventional Friction Material
Abstract: The Braking system is important system of automobiles and is responsible for providing better performance and safety. A Millions of automobiles are frequently decelerated and stopped at heavy traffic zone. Overall performance of vehicle braking system depends on braking conditions and brake material. All friction based application releases wear products; either gaseous form or particulate matter form and braking system is prime source of non exhaust particulate matter emission. The …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 57–65 Read article
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A New Model for Calculating Customer Lifetime Value on Monetary, Interpurchase Time and Retention
Abstract: Customer lifetime value(CLV) is an important an index to help company measure its customer value and allocate its marketing resource efficiency. CLV model bases on economic concept to calculate customer value with their purchase behavior.This paper construct a new model for calculating customer lifetime value on monetary, interpurchase time and retention. The empirical data of a credit card company is used to estimate parameters and compare the predicting results with …
Published in Journal of Production Research & Management · Vol. 11, Issue 2, 2021 · pp. 1–8 Read article
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Seismic Performance of RCC Elevated Liquid Storage Tank
Abstract: As compared to other Civil Engineering structures elevated liquid storage tank is the 2nd most vulnerable structure under earthquake excitation, reason is more the flexibility and more the mass causes the longer time periods. In most of the cases it is almost equal to or up to 4 seconds. This paper compares the seismic analysis of Intz, Circular and Rectangular shape elevated liquid storage tanks of capacity 250m3 in accordance …
Published in Journal of Structural Engineering and Management · Vol. 7, Issue 1, 2020 · pp. 22–32 Read article
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Static and Dynamic performance of RCC framed structure subjected to Geometric and Material non linearity
Abstract: Extensive research in the field of construction materials has led to the manufacture of improved materials and the engineers are familiar with the properties of the materials more than ever before. This has helped to predict the behavior of the structure in its entire intended time of service. Finite element based software can now predict the structural elements that may becritical in due course of time. These analyses are tedious …
Published in Journal of Structural Engineering and Management · Vol. 7, Issue 2, 2020 · pp. 21–26 Read article
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Design of Modified North Light Roof Trusses: Comparative Study
Abstract: The study of north light truss and modified trusses by analyzing and designing has been carried out and submitted the comparative study of the same in the form of tables, graphs and charts, which highlights the forces, deflections, optimum steel requires, actual steel requires as per grouping. STAAD.Pro V8i software also used to analysis and design of such models. Solar panel loads also considered on the truss. Limit State Method …
Published in Journal of Structural Engineering and Management · Vol. 7, Issue 2, 2020 · pp. 27–35 Read article
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Parametric Study of Tuned Liquid Damper on Multistorey Frame Unit
Abstract: Swimming pools in a skyscraper are not only an entertainment facility but also a boon of a structural design engineer to curb the impact of lateral forces such as wind, earthquake, etc. The usage of swimming pools as liquid tuned damper is a cost effective alternative without having any additional component within the structure. Much of the research to damp the vibration of the structure like base isolation, bracing, in-fills …
Published in Journal of Structural Engineering and Management · Vol. 3, Issue 3, 2016 · pp. 46–54 Read article
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Recording on Passive Capillary Flow of Dyed Working Liquids in the Polymer based Microfluidic Devices Fabricated inside the Cleanroom Laboratory
Abstract: In this experimental work, author has fabricated total 13 individual microfluidic devices using the maskless lithography, hot embossing lithography, direct bonding technique, diamond like carbon (DLC) coating, and laboratory-made clamping inside the cleanroom laboratory using author’s own hands-on completely. Polymethylmethacrylate (PMMA) is the chosen polymer to fabricate the 10 individual microfluidic devices due to its plasticity and optical transparency. Dyed water, dyed ethylene glycol and dyed ethanol are the prepared …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 7, Issue 3, 2020 · pp. 35–44 Read article
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Investigations on the impact of modulation formats and weather conditions in FSO link employing polarization division multiplexing and coherent detection-orthogonal frequency division multiplexing
Abstract: Free space optics (FSO) is a communication system where free space acts as medium between transceivers and they should be in line-of-sight for successful transmission of optical signal. Medium can be air, outer space, or vacuum. This system can be used for communication purpose in hours and in lesser economy. There are many advantages of FSO like high bandwidth and no spectrum license. The transmission in FSO is dependent on …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 2, 2020 · pp. 17–25 Read article
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An Assessment of Structural Safety of Cement Mortar Lined Irrigation Water Pipeline by Hydrostatic Test
Abstract: Structural safety of cement mortar-lined water pipeline is a matter of great concern primarily due to weld defects, fabrication deficiency and assessment of pressure shared by lining. The verification of structural design of such pipeline and assessment of safety is generally carried out by conducting prototype hydrostatic test. The present paper is based on one such type of study conducted by CWPRS, Pune, for Guthpha Lift Irrigation Scheme, Nizamabad, Andhra …
Published in Journal of Water Resource Engineering and Management · Vol. 1, Issue 1, 2014 · pp. 1–5 Read article
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Study of Heat Transfer in a Time Dependent Vertically Oscillating Micropolar Liquid
Abstract: AbstractThe study involves the vertical time periodic vibration of the system. This leads to the appearance of a modified gravity term in basic equation, collinear with actual gravity, in the form of a time-periodic field perturbation and is termed as gravity modulation or g-jitter in the literature. The aim of this study is to find the effect of small amplitude of gravity modulation on the onset of thermal convection between …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 1, 2018 · pp. 63–74 Read article
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Node Deployment Techniques for Link Prediction in Heterogeneous Social Networks
Abstract: AbstractThis research analyses the coverage problem in heterogeneous social network system with two types of sensor nodes having different sensing ranges. The Particle Swarm Optimization (PSO) algorithm is implemented for coverage optimization in heterogeneous network system. This algorithm is used for finding the optimal deployment of the sensor nodes by using specific fitness function. The performance of sensor nodes after running PSO algorithm is evaluated by using Euclidean distances for …
Published in Recent Trends in Sensor Research & Technology · Vol. 7, Issue 1, 2020 · pp. 16–22 Read article
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Brushless DC Motor Drive System with Reduced DC-Link Capacitor for Reduction in Torque Ripple
Abstract: Presence of large value of dc-link capacitance in a brushless DC motor (BLDCM) drive system leads to an increase in the weight and volume of the system. A combination of an IGBT switch along with a small value of DC-link capacitance is proposed in this paper. BLDCM will be supplied by DC-link capacitor and rectified mains supply alternately via DC-link IGBT chopping during the time when the output voltage of …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 19–27 Read article
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Damping Power System Oscillations using Fuzzy based Power System Stabilizer with Seven and Nine Linguistic Variables
Abstract: Low-frequency oscillations are created in a power system due to insufficient damping. Low-frequency oscillations in a power system can be damped using conventional power system stabilizer (CPSS) or fuzzy-based power system stabilizer (FLPSS). The performance of FLPSS is significantly affected by the number of linguistic variables used in designing FLPSS. In this paper, FLPSS is designed to damp the low frequency oscillations in a power system. The novelty of the …
Published in Trends in Electrical Engineering · Vol. 4, Issue 3, 2014 · pp. 35–40 Read article
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Visible and Infrared Light Detection
Abstract: A circuit is made to detect either visible or infrared light. It is designed by using different light detectors, such as, infrared phototransistor, visible phototransistor, and photoresistor. If no light is shining on the detector in the circuit, the green LED is flashing. When the light is shining on the detector, the red LED starts flashing instead of the green one. Op-amp LMC 6482 builds up a simple voltage follower …
Published in Trends in Electrical Engineering · Vol. 9, Issue 2, 2019 · pp. 20–26 Read article
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Light straightening, super-collimation, strong beaming, extraordinary refraction and splitting in Photonic Crystals
Abstract: This paper reviews light straightening, super-collimation, strong beaming, extraordinary refraction and splitting in photonic crystals and stratified structures. The light straightening finds potential applications in design of optical devices. The super collimation and strong beaming can be utilized in optical integrated circuits. The extra-ordinary refraction can be utilized in sub wavelength imaging and information propagation. The splitting can be used in optical instrumentation and optical tuning. All these phenomena are …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 1, 2022 · pp. 1–4 Read article
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An Automatic Upper/Dipper Light control circuit for vehicle
Abstract: A few vehicles on streets are expanding step by step, likewise, the innovation has grown however the wellbeing factor is constantly required to have been thought of. These days vehicles come warmed with loads of wellbeing highlights. One of the fundamental wellbeing highlights that should be introduced is a programmed upper scoop control of the fog light, this component can principally be utilized during evening driving. Natural eyes are extremely …
Published in Trends in Opto-electro & Optical Communication · Vol. 13, Issue 2, 2023 · pp. 25–31 Read article
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User, User Studies and User Education in LIS
Abstract: AbstractUser education is a programme designed and operated by the library/information personnel to teach the users about the resources, the ways to locate the resources and exploit the resources. The user education programmes are to be organised on a regular basis and from time to time. User education range from initiating a fresh user into the library/information system – teaching about the layout of the library, various units and their …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 3, 2015 · pp. 27–35 Read article