نتایج جستجو برای: non ideal boundary conditions

تعداد نتایج: 2230540  

Journal: :Journal of open research software 2022

Uavnoma is a set of Python functions and front-end script for modeling, studying, analyzing the communication system composed by an unmanned aerial vehicle (UAV) two ground users. We assume that UAV acts as base station to serve users according non-orthogonal multiple access (NOMA) principles. For more practical insights, residual hardware impairments (RHI) imperfect successive interference can...

F. Daneshmand M. J. Kazemzadeh-Parsi,

In the present paper, applicability of the modified fixed grid finite element method in solution of three dimensional elasticity problems of functionally graded materials is investigated. In the non-boundary-fitted meshes, the elements are not conforming to the domain boundaries and the boundary nodes which are used in the traditional finite element method for the application of boundary condit...

Journal: :فیزیک زمین و فضا 0
سرمد قادر دانشیار، گروه فیزیک فضا، مؤسسة ژئوفیزیک دانشگاه تهران، ایران عباسعلی علی اکبری بیدختی استاد، گروه فیزیک فضا، مؤسسة ژئوفیزیک دانشگاه تهران، ایران سعید فلاحت دانش آموخته کارشناسی ارشد، گروه فیزیک فضا، مؤسسة ژئوفیزیک دانشگاه تهران، ایران

this work reports the results of the application of the second-order maccormack method for numerical solution of‎ the conservative form of two-dimensional non-hydrostatic and fully compressible navier-stokes equations governing an inviscid and adiabatic atmosphere‎. various aspects of the computational approach such as discretization of the governing equations for the interior and boundary poin...

1996
Pierluigi Colli Maurizio Grasselli

A hyperbolic Stefan problem based on the linearized Gurtin{Pipkin heat conduction law is considered. Temperature and free boundary are controlled by a thermostat acting on the boundary. This feedback control is based on temperature measurements performed by real thermal sensors located into the domain containing the two{phase system and/or at its boundary. Three di erent types of thermostats ar...

2001
Josep Perelló Jaume Masoliver

Option pricing is mainly based on ideal market conditions which are well represented by the Geometric Brownian Motion (GBM) as market model. We study the effect of non-ideal market conditions on the price of the option. We focus our attention on two crucial aspects appearing in real markets: The influence of heavy tails and the effect of colored noise. We will see that both effects have opposit...

2011
Petr Klapetek Miroslav Valtr David Nečas Ota Salyk Petr Dzik

Nanoparticles are often measured using atomic force microscopy or other scanning probe microscopy methods. For isolated nanoparticles on flat substrates, this is a relatively easy task. However, in real situations, we often need to analyze nanoparticles on rough substrates or nanoparticles that are not isolated. In this article, we present a simple model for realistic simulations of nanoparticl...

2015
M. KiranKumar Dr. G. Sudhakar

The classification of digital modulation schemes plays an important role in communication intelligence (COMINT) and other related applications. The existing algorithms for modulation classification consider a semi-blind scenario, where certain signal parameters are assumed to be known. The pre-processing accuracy of signal parameters like the symbol rate, the center frequency, the carrier phase...

2009
G. Crotti D. Giordano A. Morando

− This work illustrates an analysis of Rogowski coils for power applications, when operating under non ideal measurement conditions. The developed numerical model, validated by comparison with other methods and experiments, enables to investigate the effects of the geometrical and constructive parameters on the measurement behavior of the coil.

In this article free vibration of a Timoshenko nanobeam with variable cross-section is investigated using nonlocal elasticity theory within the scope of continuum mechanics. Small scale effects are modelled after Eringen’s nonlocal elasticity theory while the non-uniformity is presented by exponentially varying width through the beam length with constant thickness. Analytical solution is achiev...

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