http://dspace.daffodilvarsity.edu.bd:8080/handle/123456789/1580 Mon, 27 Apr 2026 00:30:42 GMT 2026-04-27T00:30:42Z http://dspace.daffodilvarsity.edu.bd:8080/handle/20.500.11948/548 STEADY RADIATIVE FREE CONVECTIVE FLOW ALONG A VERTICAL FLAT PLATE IN THE PRESENCE OF MAGNETIC FIELD Karim, Md. Enamul; Uddin, M. J. Steady two-dimensional Magneto hydrodynamic free convection flow with thermal radiation in the presence of magnetic field along a vertical flat plate is concerned in the present study. The fluid is taken to be gray, absorbing-emitting radiation. The non-linear governing equations have been transformed by the usual similarity transformation to a system of ordinary differential equations. These dimensionless similar equations are then solved numerically employing the Nachtsheim-Swigert shooting iteration technique along with sixth order Runge-Kutta integration scheme. Finally the effects of the pertinent parameters are examined. Fri, 01 Jul 2011 00:00:00 GMT http://dspace.daffodilvarsity.edu.bd:8080/handle/20.500.11948/548 2011-07-01T00:00:00Z http://dspace.daffodilvarsity.edu.bd:8080/handle/20.500.11948/547 SECTIONALLY PSEUDOCOMPLEMENTED RESIDUAL LATTICE Rahman, Md. Zaidur; Azad, Md. Abul Kalam; Hasan, Md. Nazmul At first, we recall the basic concept, By a residual lattice is meant an algebra L = (L,¡ý,¡ü,.,o,0,1) such that (i) L = (L,¡ý,¡ü,0,1) is a bounded lattice, (ii) L = (L,.,1) is a commutative monoid, (iii) it satisfies the so-called adjoin ness property: (x ¡ý y) . z = y if and only if y ¡Â z ¡Â x o y Let us note [7] that x ¡ý y is the greatest element of the set (x ¡ý y) . z = y Moreover, if we consider x . y = x ¡ü y , then x o y is the relative pseudo-complement of x with respect to y, i. e., for . = ¡ü residuated lattices are just relatively pseudo-complemented lattices. The identities characterizing sectionally pseudocomplemented lattices are presented in [3] i.e. the class of these lattices is a variety in the signature {¡ý,¡ü,o,1}. We are going to apply a similar approach for the adjointness property: Fri, 01 Jul 2011 00:00:00 GMT http://dspace.daffodilvarsity.edu.bd:8080/handle/20.500.11948/547 2011-07-01T00:00:00Z http://dspace.daffodilvarsity.edu.bd:8080/handle/20.500.11948/546 POWER SYSTEM STABILIZATION BY FUZZY SET THEORY BASED CONTROL OF SMES Sheikh, Md. Rafiqul Islam; Takahashi, Rion; Tamura, Junji At present fuzzy logic control is receiving increasing emphasis in process control applications. The paper describes the application of fuzzy logic control in a power system that uses a 12- pulse bridge converter associated with Superconductive Magnetic Energy Storage (SMES) unit. The fuzzy control is used in both the frequency and voltage control loops, replacing the conventional control method. The control algorithms have been developed in detail and simulation results are presented. These results clearly indicate the superior performance of fuzzy control during the dynamic period of energy transfer between the power system and SMES unit. Fri, 01 Jul 2011 00:00:00 GMT http://dspace.daffodilvarsity.edu.bd:8080/handle/20.500.11948/546 2011-07-01T00:00:00Z http://dspace.daffodilvarsity.edu.bd:8080/handle/20.500.11948/545 PERFORMANCE ANALYSIS OF COOPERATIVE RELAYING IN NAKAGAMI-M FADING CHANNELS Barua, B.; Sarkar, M. Z. I. This paper is concerned with the analysis of exact symbol error probability (SEP) for cooperative diversity using amplify-and-forward (AF) relaying over independent and non-identical Nakagami-m fading channels. The mathematical formulations for Probability Density Function (pdf) and Moment Generating Function (MGF) of a cooperative link have been derived for calculating symbol error probability with well-known MGF based approach taking M-ary Phase Shift Keying (MPSK) signals as input. The numerical results obtained from this research have been compared with different fading conditions. It is observed that the existence of the diversity link in a relay network plays a dominating role in error performance. Fri, 01 Jul 2011 00:00:00 GMT http://dspace.daffodilvarsity.edu.bd:8080/handle/20.500.11948/545 2011-07-01T00:00:00Z