Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Amir Aghamohammadi"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-15 (2023)
Abstract We investigate the optimal orientation for a fixed flat plate solar collector using the clear sky model. The ground reflection component of irradiation that hits the collector’s surface is ignored due to its relatively small magnitude when
Externí odkaz:
https://doaj.org/article/02e74356f004429a87d1d15a4323c492
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-18 (2021)
Abstract We analytically, experimentally and computationally explore the solar radiation flux distribution in the interior region of a spherical mirror and compare it to that of a paraboloidal one with the same aperture area. Our investigation has be
Externí odkaz:
https://doaj.org/article/9d80b8f8610542d8b6aa9926ec70b040
Autor:
Mohammad Khorrami, Amir Aghamohammadi
Publikováno v:
International Journal of Modern Physics B.
In this paper, the problem of finding the velocity profile of fully developed laminar flows through ducts of arbitrary cross-sections is investigated. The method which is used is based on a perturbative approach, although some nonperturbative exact r
Autor:
Amir Aghamohammadi, Mohammad Khorrami
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 599:127405
Autor:
Amir Aghamohammadi
Publikováno v:
European Journal of Physics. 43:035005
We use dimensional analysis as well as the parallel axis theorem to obtain the moment of inertia for some homogeneous two-dimensional objects. These objects should possess some sort of symmetry: they should have shapes that can be decomposed into sma
Autor:
Amir Aghamohammadi
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 506:873-879
A compound Atwood’s machine with N + 1 different masses, e.g. m k ≔ α k − 1 m , is considered. It is shown that at the large N limit and at a critical value, α c = 1 ∕ 4 , system admits a phase transition. The critical exponent is obtained.
Autor:
Amir Aghamohammadi, Mohammad Khorrami
Publikováno v:
Canadian Journal of Physics. 96:627-632
The two dimensional motion of a generally non-circular non-uniform cylinder on a flat horizontal surface is investigated. Assuming that the cylinder does not slip, energy conservation is used to study the motion in general. Points of returns, and sma
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 572:125905
A system is studied which consists of two oscillators, coupled through an arbitrary force depending on the relative position of the oscillators. Each of the oscillators is in thermal contact with a heat reservoir. Each oscillator is assumed to have t
Publikováno v:
American Journal of Physics. 85:193-201
A model of a one-dimensional mass-spring chain with mass or spring defects is investigated. With a mass defect, all oscillators except the central one have the same mass, and with a spring defect, all the springs except those connected to the central
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 545:123278
The most general exclusion single species reaction–diffusion models are investigated, which are defined on a one-dimensional lattice, have nearest-neighbor interactions, and their corresponding two-site Hamiltonians are diagonalizable or converted