Results 351 to 360 of about 3,465,599 (389)
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2013
A review of the method used to calculate circuit component values for three-phase power lines leads to the identification of the first step; the derivation of a formula relating the capacitance of an isolated conductor to its length and radius. This formula can be regarded as a basic building block from which the capacitive parameters of multi ...
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A review of the method used to calculate circuit component values for three-phase power lines leads to the identification of the first step; the derivation of a formula relating the capacitance of an isolated conductor to its length and radius. This formula can be regarded as a basic building block from which the capacitive parameters of multi ...
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Lumped parameter model for multimode laser cutting
Optics and Lasers in Engineering, 2001A lumped parameter mathematical model is developed to relate the cut depth to the laser cutting parameters and material properties. The model takes into account the threshold power of the incident laser beam for the initiation of cutting and modifies an earlier cutting model so that it applies to a wide set of process parameters ranging from low to ...
Li, Yonggang +2 more
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Assessment of lumped-parameter models for rigid footings
Computers & Structures, 2010The quality of consistent lumped-parameter models of rigid footings is examined. Emphasis is put on the maximum response during excitation and the geometrical damping related to free vibrations. The optimal order of a lumped-parameter model is determined for each degree of freedom, i.e.
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2018
This chapter uses the recipe presented in Chap. 2 to develop models for different systems related to chemical engineering. The examples presented in this chapter deal with lumped-parameter problems, in which spacial variations in a physical quantity of interest are ignored. As shown in Fig.
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This chapter uses the recipe presented in Chap. 2 to develop models for different systems related to chemical engineering. The examples presented in this chapter deal with lumped-parameter problems, in which spacial variations in a physical quantity of interest are ignored. As shown in Fig.
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IEEE Transactions on Electron Devices, 2019
A lumped-parameter equivalent circuit model is proposed to simulate the S-shaped current–voltage ( ${I}$ – ${V}$ ) characteristics exhibited in organic solar cells.
Fei Yu +3 more
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A lumped-parameter equivalent circuit model is proposed to simulate the S-shaped current–voltage ( ${I}$ – ${V}$ ) characteristics exhibited in organic solar cells.
Fei Yu +3 more
semanticscholar +1 more source
Lumped parameter heart model with valve dynamics
Russian Journal of Numerical Analysis and Mathematical Modelling, 2019In this work, the lumped parameter model of the left heart is presented. It is based on the concept of the time-varying elastance of myocardium and includes the model of the heart valve dynamics.
S. Simakov
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Comparison of distributed and lumped parameters stray current models
2013 Africon, 2013DC electrified traction systems are a potential source of stray current, that may corrode both internal and external metal structures and installations. The stray current intensity depends on several factors (such as traction current, rail insulation, concrete mat and pier resistance) that need to be accounted for in any model for the estimation of ...
Fichera F. +3 more
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3D lumped parameter model for lithographic simulations
SPIE Proceedings, 2002Simplified resist models are desired for fast simulation of resist profiles over large mask areas. The Lumped Parameter Model was originally developed as one such model. However, the LPM model has been limited to 2D resist simulations of 1D aerial image slices with positive tone resists.
Mark D. Smith +2 more
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Lumped Parameter Model for Optical Lithography
1987Publisher Summary As the minimum feature size of integrated circuits (ICs) becomes ever smaller, the importance of process and device modeling becomes more evident. This is never truer than for the process of optical lithography. Lithography models have been used to understand fundamental aspects of photo-resist exposure and development and to study ...
Chris A. Mack, Ron Hershel
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Lumped-Parameter Inertia Model for Flexure Hinges
Mechanics Based Design of Structures and Machines, 2004Abstract The article describes the analysis to derive the lumped-parameter inertia properties for variable cross-section flexure hinges for potential use in modeling, designing, and optimizing of these components in the resonant/dynamic range. Inertia fractions corresponding to one of the flexure's 6 degrees of freedom are formulated for single-, two-,
Ephrahim Garcia, Nicolae Lobontiu
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