Zobrazeno 1 - 10
of 43
pro vyhledávání: '"M N, Qureshi"'
Publikováno v:
Advances in Civil Engineering, Vol 2019 (2019)
Concrete mix design is the science to obtain concrete proportions of cement, water, and aggregate, based on the particular concrete design method and their mix design parameters. However, the suitability of concrete proportion for high-performance co
Externí odkaz:
https://doaj.org/article/c9af2fcfd306490d83c71196d3d2ffd9
Publikováno v:
Advances in Materials Science and Engineering, Vol 2019 (2019)
Due to resource scarcity, environmental impact, and socioeconomic constraints, sustainable criteria should be given prime importance in the construction industry. The sustainability in concrete can be attained using supplementary materials. The numbe
Externí odkaz:
https://doaj.org/article/223b14ae570846d9bf25ce2282456ba2
Autor:
M. N. Qureshi, M. I. Tiwana
Publikováno v:
Radioengineering, Vol 25, Iss 4, Pp 763-773 (2016)
Long Term Evolution Advanced (LTE-A) Heterogeneous Networks (HetNet) are an important aspect of 5th generation mobile communication systems. They consists of high power macrocells along with low power cells i.e. picocells and femtocells to fill up ma
Externí odkaz:
https://doaj.org/article/a1b0d50c8e154cd2b5269006fae962e4
Autor:
A. Q. Khan, M. N. Qureshi
Publikováno v:
Complexity, Vol 2018 (2018)
In this paper, global dynamics and bifurcations of a two-dimensional discrete-time Lotka-Volterra model have been studied in the closed first quadrant R2. It is proved that the discrete model has three boundary equilibria and one unique positive equi
Externí odkaz:
https://doaj.org/article/09fe9bd0d01e4106a19e522ea49be947
Autor:
M. N. Qureshi, A. Q. Khan
Publikováno v:
Computational Ecology and Software, Vol 5, Iss 1, Pp 48-62 (2015)
In this paper, we study the qualitative behavior of following open-access anchovy fishery model: xn+1=axnb-d α xvnyn, yn+1=yn(η(pαxvn-c)+1), where a,b,c,d,v,p,α, η, and the initial conditions x0, y0 are positive real numbers. More precisely, we
Externí odkaz:
https://doaj.org/article/61efc077f7564a7db59c6dfbfe7e4c71
Publikováno v:
Advances in Mathematical Physics, Vol 2017 (2017)
Differential invariants and their corresponding canonical forms for systems of three 2nd-order ODEs possessing three-dimensional Lie algebras are constructed. Their extension up to kth-order system of three 2nd-order ODEs is presented. Furthermore si
Externí odkaz:
https://doaj.org/article/33fc6bb2840a47509c5478c95575bed7
Publikováno v:
Computational Ecology and Software, Vol 4, Iss 2, Pp 104-115 (2014)
In this paper, our aim is to study the equilibrium points, local asymptotic stability, global behavior of an equilibrium points and rate of convergence of an anti-competitive system of third-order rational difference equations of the form: xn+1=ayn-2
Externí odkaz:
https://doaj.org/article/45c1c2c7ed914335b66f7226d050d86f
Publikováno v:
Computational Ecology and Software, Vol 4, Iss 1, Pp 35-46 (2014)
In the present work, we study the qualitative behavior of an anti-competitive system of fourth-order rational difference equations. More precisely, we study the local asymptotic stability, global character of the unique equilibrium point, and the rat
Externí odkaz:
https://doaj.org/article/5df2f5daa2604dc2afce320a22835ee0
Autor:
A. Q. Khan, M. N. Qureshi
Publikováno v:
Discrete Dynamics in Nature and Society, Vol 2014 (2014)
We study the qualitative behavior of the following exponential system of rational difference equations: xn+1 = αe-yn+βe-yn-1/γ+αxn+βxn-1, yn+1 = α1e-xn+β1e-xn-1/γ1+α1yn+β1yn-1, n = 0,1,…, where α, β, γ, α1, β1, and γ1 and initial co
Externí odkaz:
https://doaj.org/article/af67cfc18ef642c5b3ea3b76dbfce4c6
Publikováno v:
Discrete Dynamics in Nature and Society, Vol 2013 (2013)
One-dimensional optimal systems for nonhomogeneous discrete heat equation with different source terms are calculated. By utilizing these optimal systems invariant solutions are found. Also generating solutions are calculated, using the elements of th
Externí odkaz:
https://doaj.org/article/c95289ed3e57479487d7cd074cc51447