Now a days, the discussion of chaotic dynamics has become increasingly popular. A
particular class of dynamical systems is defined as chaotic dynamical systems. The idea
of dynamical systems has gone through phases and ...
A number of pyridopyrimidines 64-66 were synthesized by the reaction of arylideneacetophenones 58-59 with barbituric acid 1 or 2-thiobarbituric acid 2 in presence of ammonium acetate (NH4OAc) in ethanol (EtOH) and acetic ...
The main intention of this study is to evaluate the advance application of Radiation induced grafting of polymers. For the purposes we have taken non woven polyethylene fabric as a trunk polymer and Glycidylmethacrylate ...
This study describes determination of pesticide residues and heavy metals in fruits and vegetables, heavy
metals in turmeric powder, aflatoxins in wheat and maize, benzoic acid and sorbic acid in fruit drinks and
tomato ...
Cobalt ferrite (CoFe2O4) nanoparticles were synthesized by co-precipitation method and were coated with biocompatible, biodegradable folate chitosan. The XRD studies confirmed the formation of single phase with inverse ...
Amorphous state of materials is a metastable state, which transforms into more stable crystalline phase while subjected to appropriate thermal treatment. Nanocrystallization of amorphous metallic magnetic ribbons by annealing ...
Poverty and reproductive health are important issues in Bangladesh as well as in the
developing countries around the world. The number of reproductive health study is
increasing day by day. On the aspect of socio-economic, ...
Hossain, Md. Mosharof(University of Dhaka, 2021-08-26)
The aim of our study, which consists of six chapters, is to study some problems on heat transfer with convection in the micropolar fluids. In the following, a brief discussion of the chapters is given.
Chapter Two contains ...
Hasan, Md. Mahmudul(University of Dhaka, 2021-08-24)
The redox behavior of the metal ions, Cu(II), Zn(II) and Cd(II) in absence and presence of the
two isomeric ligand leucine and isoleucine were studied in aqueous medium using cyclic
voltammetry. It was found that the ...
Nazimuddin, A. K. M.(University of Dhaka, 2021-08-19)
The aim of this thesis is to study interconnection among various branches of
differential geometry and its application to dynamical systems. At first, we discuss
about various branches of differential geometry and study ...
Talukder, Md. Ghulam Murtaza(University of Dhaka, 2020-03-16)
Biomagnetic fluid (Blood) is a fluid that exists in a living creature and its flow is influenced
by the presence of a magnetic field. Blood is considered to be a typical biomagnetic fluid due
to the interaction of ...
We consider a linear partial integro-differential equation that arises in modeling various physical and biological processes. We study the problem in a spatial periodic domain. We analyze numerical stability and numerical ...
Bhowmik, Samir K.; Duncan, Dugald B.; Grinfeld, Michael; Lord, Gabriel J.(Discrete and Continuous Dynamical Systems Series, 2011-07)
We consider a bistable integral equation which governs the sta- tionary solutions of a convolution model of solid–solid phase transitions on a circle. We study the bifurcations of the set of the stationary solutions as the ...
In this article, we consider a nonlinear integro-differential equation that arises in a ˙ θ-neural networks modeling. We analyze boundedness and invertibility of the model operator, construct approximate solutions using ...
We investigate the application of windowed Fourier frames to the numerical solution of partial differential equations, focussing on elliptic equations. The action of a partial differential operator (PDO) on a windowed plane ...
Bhowmik, Samir Kumar(Wiley Inter Science, 2010-01-21)
We study a linear partial integro-differential equation which arises in the modeling of various physical and biological sciences.We analyze numerical stability and numerical convergence of a one step approximation of the ...
Islam, Md. Jahurul(University of Dhaka, 2019-01-13)
In this thesis, we discuss the constructions of the generalized Cantor sets which are the prototypical fractals and also discuss the Markov operators defined on separable complete metric space. We show that these special ...
Hossain, Md. Bellal(University of Dhaka, 2015-04-21)
The Boundary Value Problems (BVPs), either the linear or nonlinear, arise in some branches of applied mathematics, engineering and many other fields of advanced physical sciences. Many studies concerned with solving second ...
Hussain, Sharmina(University of Dhaka, 2018-12-17)
Numerical investigations have been carried out to look into the e ect of double-di usion on laminar ow along vertical at and cylindrical surfaces. Conventional convective processes i.e. natural convection, mixed convection ...