Results 31 to 40 of about 899,728 (285)
Numerical Investigation of Channel Geometry on the Performance of a Pem Fuel Cell
International Journal of Applied Mechanics and Engineering, 2013 A complete three-dimensional and single phase model for proton exchange membrane (PEM) fuel cells was used to investigate the effect of using different channels geometry on the performances, current density and gas concentration. The proposed model was a
I. Khazaee, M. Mohammadiun
doaj +1 more source
Irredundant Triangular Decomposition
, 2018 Triangular decomposition is a classic, widely used and well-developed way to represent algebraic varieties with many applications. In particular, there exist sharp degree bounds for a single triangular set in terms of intrinsic data of the variety it ...
Alvandi P. +6 more
core +1 more source
Numerical study of the 2D lid-driven triangular cavities based on the Lattice Boltzmann method [PDF]
, 2016 Numerical study of two dimensional lid driven triangular cavity flow is performed via using lattice Boltzmann method on low Reynolds numbers. The equilateral triangular cavity is the first geometry to be studied, the simulation is performed at Reynolds
AN, BO, Bergadà Granyó, Josep Maria
core +1 more source
Analysis and Estimation of Downward Seepage from Lining and Unlining Triangular Open Channel [PDF]
Engineering and Technology Journal, 2016 This research concerns to study the quantity of seepage running downward from triangular open channel with lining and unlining using computer program SEEP/W (which is a sub-program of Geo-Studio). Using SEEP/W experiments two groups were carried out with
Asmaa Abdul Jabbar Jamel
doaj +1 more source
When are Multiples of Polygonal Numbers again Polygonal Numbers?
, 2018 Euler showed that there are infinitely many triangular numbers that are three times other triangular numbers. In general, it is an easy consequence of the Pell equation that for a given square-free m > 1, the relation P=mP' is satisfied by infinitely ...
Chahal, Jasbir S. +2 more
core +1 more source
Efficient Calculation of the Green's Functions for Multilayered Shielded Cavities with Right Isosceles-Triangular Cross-Section [PDF]
, 2009 An efficient calculation of the Green’s functions inside multilayered shielded cavities with right isosceles-triangular cross-section is presented. The method is entirely developed in the spatial domain, and it is based on image theory.
Gómez Díaz, Juan Sebastián +3 more
core +2 more sources
Upper Triangular Similarity of Upper Triangular Matrices
Linear Algebra and its Applications, 1997 The author considers the following equivalence relation in the set of all complex upper triangular \(n\times n\) matrices: \(A\) and \(B\) are \(U\)-similar if there exists an invertible upper triangular matrix \(S\) such that \(A=S^{-1} BS\). If \(A\) and \(B\) are \(U\)-similar, then they must have the same diagonal and the same Jordan form.
openaire +1 more source
Rocky Mountain Journal of Mathematics, 1984 This paper contains adaptive cubature rules for bivariate problems over a general polygonal domain D. The domain D is approximated by general triangles. Some numerical examples illustrating the algorithm are given.
Barnhill, R.E., Little, F.F.
openaire +3 more sources
Buildings, 2022 The axial stiffness of the connection joints in a transmission tower will affect the stability bearing capacity of the tower. The axial stiffness of different forms of connection joints has different effects on the stability bearing capacities of ...
Tengfei Zhao +6 more
doaj +1 more source