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Browsing Faculty of Science by Title

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  • Sectionally Pseudocomplemented Distributive Nearlattices 
    Islam, A. K. M. Sirajul (University of Rajshahi, 1998)
    This thesis studies the nature of a sectionally pseudocomplemented distributive nearlattice. By a nearlattice S we will always mean a meet semilattice together with the property th9.t any two elements possessing a common ...
  • Seismic Surface Wave for Studying the Crustal Structure of the South-Eastern Region of Bangladesh 
    Faruk, Md. Omar (University of Rajshahi, 2011)
    Earthquake is one of the catastrophic events of the natural disasters that are prone to cause great damage to life and property. In order to decrease the damages, it is essential to gain knowledge for studying the crustal ...
  • Semilattices with a Partial Binary Operation 
    Begum, Shamsun Naher (University of Rajshahi, 2010)
    This thesis Centre’s on a class of certain pseudo complemented partial lattices. This partial lattice is said to be a JP-semilattice. An algebraic structure S = (S, /\, V), where (S, /\) is a semilattice and V is a partial ...
  • Separation Axioms in Intuitionistic Fuzzy Topological Spaces 
    Ahmed, Estiaq (University of Rajshahi, 2015)
    In 1965, Zadeh[150] introduced to the world the term fuzzy set(FS), as a formalization of vagueness and partial truth, and represents a degree of membership for each member of the universe of discourse to a subset of it. ...
  • Separation Axioms on L-Topological Spaces 
    Islam, Rafiqul (University of Rajshahi, 2015)
    The notion of a fuzzy set, as proposed by L.A. Zadeh[90] in 1965 to provide a foundation for the evolution of many areas of knowledge. After then in quick succession, L-fuzzy sets were introduced by Goguen[24] in 1967. ...
  • Socio-Economic Correlates of Child Labour in Agriculture Sector: Some Selected Rural Areas of Rajshahi, Bangladesh 
    Haque, Md. Rajwanul (University of Rajshahi, 2006)
    Child is the father of a man. Child is the wealth of a state. Child is the hope and future of a nation. Child is the pioneer of human civilization. When the child is so important in the life of a nation; he can neither ...
  • Solitary Wave Solutions of NLEEs in Plasma Physics and Engineering 
    Khan, Md. Ashrafuzzaman (University of Rajshahi, 2015)
    Although the modified simple equation (MSE) method effectively provides exact solitary wave solutions to nonlinear evolution equations (NLEEs) in the field of applied mathematics, mathematical physics, plasma physics and ...
  • Some Theoretical Studies on Turbulence and Magneto-Hydrodynamic Turbulence 
    Azad, Md. Abul Kalam (University of Rajshahi, 2004)
    The theory of turbulent motion has received considerable attention in recent developments of high-speed jet aircraft, plasma physics and chemical engineering. The formation of a turbulent boundary layer is one of the most ...
  • Some Topics in Fuzzy Topological Spaces 
    Hossain, Md. Sahadat (University of Rajshahi, 2004)
    The concept of fuzzy set was introduced by the American Mathematician L. A. Zadeh for the first time in 1965. This provides a natural framework for generalizing many algebraic and topological concepts in various directions. ...
  • Spinning Particles in Curved Spacetime of General Relativity 
    Ali, M. Hossain (University of Rajshahi, 2001)
    In Introduction we give a brief account of our work of studying spinning particles in curved spacetime of General Relativity. In Chapter I we discuss the relevant equations for the motion of spinning particles in curved ...
  • Stability Analysis of Some Mathematical Models of Epidemics 
    Islam, Md. Saiful (University of Rajshahi, 2013)
    The spread of communicable diseases is often described mathematically by compartmental models. Many epidemiological models have a Disease Free Equilibrium (DFE) at which the population remains in the absence of disease. ...
  • Statistical Analysis of the Average Life of Electric Bulbs: A Comparative Study 
    Islam, Md. Aminul (University of Rajshahi, 1991)
    This thesis -- 'Statistical Analysis of the Average Life of Electric Bulbs: A comparative study' consists of six chapters of which chapter four and five are contributory, chapter six on the summary conclusion of the thesis. ...
  • Statistical Modeling for Genome Wide Association Studies 
    Alam, Md. Jahangir (University of Rajshahi, 2020)
    Genomics is the study of the whole genome of any living organism along with its environment and it incorporates different elements from genetics (a branch of biology that generally deals with the heredity). Genomics uses ...
  • Statistical Study of Child Growth: A Case Study of Rajshahi City 
    Pervin, Mst. Khurshida (University of Rajshahi, 2008)
    Longitudinal data on 11 preselected variables of child growth was collected during the period of 25 May to 17 December, 2002 for a group of children from birth to 48 months of age from the study area. The study started ...
  • Structure of an initial n1ain sequence star of 1nixed opacity with negligible abundance of heavy ele1nents and studies of so1ne young clusters 
    Pramanik, Jogendra Nath (University of Rajshahi, 2005)
    In this thesis we have investigated some aspects of stellar structure and evolution. The thesis is divided into two sections. Section I deals with the structure of a star while section 2 deals with stu.J.y .. of some young ...
  • Studies of Spinning Particles in Curved Spacetimes 
    Banu, Akhtara (University of Rajshahi, 2010)
    We investigate the motion of spinning particles, such as Dirac fermions, in curved spacetimes by pseudo-classical mechanics models in which the spin degrees of freedom are characterized in terms of anti-commuting Grassmann ...
  • Studies on Arsenic Accumulation in Agricultural Products 
    Islam, Md. Asadul (University of Rajshahi, 2005)
    Many of the metals are considered as essential nutrients for maintaining sound human health throughout life. But intake of heavy metal contaminated vegetables, rice, meat, fish, drinking water and dust may pose a risk to ...
  • Studies on Ground Water Toxicants in Food Chain 
    Ali, Md. Rustom (University of Rajshahi, 2014)
    Many of the metals are considered as essential nutrients for maintaining sound human health throughout life. But intake of heavy metal contaminated vegetables, rice, meat, fish, drinking water and dust may pose a risk to ...
  • Studies on Hydromagnetic Stability of Newtonian and Non-Newtonian Fluid 
    Rahman, M. Monsur (University of Rajshahi, 2004)
    In this thesis hydromagnetic stabilities with respect to both axisymmetric and non­axisymmetric perturbations of an incompressible perfectly conducting viscous fluid in presence of a magnetic field has been investigated. ...
  • Studies on Phytochemicals of Wedelia chinensis (Asteraceae) and Their Anticholinesterase & Antioxidant Activities 
    Islam, Md. Aminul (University of Rajshahi, 2018)
    This dissertation describes the results of phytochemical and Anticholinesterase & Antioxidant activities on the medicinal plant of the Wedelia chinensis. The whole research work has been divided into two parts. Part-A ...

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