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 ...
Manifolds are simplifications of our accustomednotions about curves and exteriors to arbitrary dimensional objects. Generally, A Manifolds is a topological space which is homeomorphic to ℝ . Connections of manifolds are ...
Abdul Alim Miah, Md.(University of Dhaka, 2017-10-19)
The thesis consists of ten chapters. In this thesis chapter one, chapter two, chapter three, chapter four, chapter five, chapter six, chapter seven, chapter nine, chapter ten are expository and the chapter eight is our ...
Pesticide is one of the most used components in current agricultural practices for protecting the crops from different kinds of pests. The widespread use of pesticides contaminates soil, water, air and crops. The result ...
Munia, Zerin Sultana(University of Dhaka, 2019-05-21)
Imidacloprid, a neonicotinoid pesticide is allowed to use in food storage. A total of 30 rice samples and 15 wheat flour samples were analyzed to determine the residaul amount of imidacloprid. Among 30 rice samples, 9 ...
Protic and aprotic ionic liquids (ILs) derived from an organic base 1,8-diazabicyclo[5.4.0]-undec-7-ene (DBU) were prepared and characterized.The structure and interactions between anions and cations of the AIL were studied ...
Roy, Hemshankar Saha(University of Dhaka, 2018-03-22)
A series of polymer composites have been prepared by using both conducting and non-conducting polymer as matrix phases and different metal oxides as dispersed phases. Conducting polymer, polyaniline (PAni) was prepared by ...
The amount of food produced is very important as the human population increases. Over the last 40 years, food production has been increased 20-50 % where pesticides were played an important role. Proper use of pesticides ...
Das, Gouranga Chandra(University of Dhaka, 2018-02-08)
Long back in 1959, Latif and co-workers, department of Chemistry, Rajshahi University , Bangladesh in an attempt to prepare dithiobenzoic acid [Ph-(C=S)-SH] from a mixture of benzaldehyde and ethanol in presence of aqueous ...
Series of ionic liquid (IL) based microemulsions were prepared with ionic and nonionic surfactants. Hydrophilic and hydrophobic ILs were used instead of water and the oil phase, respectively. The structure of the ILs were ...
Jahan, Shirin Akter(University of Dhaka, 2016-09-18)
Hydroxyapatite (HAP) is an important biomaterial which could be a promising adsorbent for removal of heavy metals from aqueous medium besides its wide application in biomedical field. Flexible hexagonal structure of HAP ...