- All Volumes
- Volume 33, issue 1, 2023 (5 papers)
- Volume 32, Issue 1, 2022 (6 papers)
- Volume 32, Issue 2, 2022 (5 papers)
- Volume 31, Issue 1, 2021 (6 papers)
- Volume 31, Issue 2, 2021 (6 papers)
- Volume 30, Issue 1, 2020 (7 papers)
- Volume 30, Issue 2, 2020 (6 papers)
- Volume 29, Issue 1, 2019 (6 papers)
- Volume 29, Issue 2, 2019 (6 papers)
- Volume 21, Issue 1, 2014 (12 papers)
- Volume 16, Issue 1, 2012 (10 papers)
- Volume 19, Issue 2, 2012 (13 papers)
- Volume 20, Issue 3, 2012 (13 papers)
- Volume 14, Issue 2, 2011 (10 papers)
- Volume 12, Issue1, 2010 (16 papers)
Preparation of Nanostructured Iron Oxide Particles and Their Surface Functionalization with Oleic Acid, APTMS and Silver Nanoparticles
Corresponding Author : Nur Uddin Ahamad (nur-che@sust.edu)
Abstract : In this article, preparation of magnetic nanostructured iron oxide particles (IOs) and their surface functionalization with oleic acid, 3-Aminopropyltrimethoxysilane (APMTS) and Ag nanoparticles are reported. IOs particles were prepared by co-precipitation method and colloidal silver nanoparticles were synthesized by polyol method. The nanoscale IOs particles (<100nm) exhibited paramagnetic property and surface functionalization did not alter its magnetism. Colloidal stability of IOs particles is dependent on the nature of the surfactants. Necked IOs, and IOs functionalized with APTMS and Ag nanoparticles…
ANNIHILATOR IDEALS IN 0-DISTRIBUTIVE LATTICES
Corresponding Author : M.R. Talukder (r.talukder-mat@sust.edu)
Abstract : In this paper, we generalized some results of annihilator ideals for 0-distributive lattices. We prove that the set of all annihilator ideals of a 0-distributive lattice form a Boolean algebra. We also prove Stone type separation theorem for annihilator ideals of 0-distributive lattices.
Correlates of stunting and underweight among under five children of Sylhet district in north-eastern Bangladesh
Corresponding Author : Sumonkanti Das (sumonkanti-sta@sust.edu)
Abstract :
Sylhet is the most populated district in the north-east part of Bangladesh where half of the under-five children are either stunted or underweight. The correlates of stunting and underweight have not yet been explored extensively for the children of Sylhet district. This study aims to explore the correlates of stunting and underweight in Sylhet by selecting an appropriate logistic model for each of the indicators. A total of 809 under-5 children were selected in the household survey via two-stage cluster…
A Fine-Grained Tagset for Bengali Language
Corresponding Author : Md. Abdullah Al Mumin (mumin-cse@sust.edu)
Abstract :
The lexical tags, called Tagsets, play a significant role providing the large amount of information about a word and its neighbors, telling us something about how the words are pronounced, being used in stemming for information retrieval[1]. So, a standard tagset is necessary for working with a language in any computational linguistic field. Two major kinds of tagsets for a language are fine-grained tagset, which uses a large number of tags, and coarsegrained tagset, which uses a small number of…
An Enhanced Selection Sort Algorithm
Corresponding Author : Md. Khairullah (khairullah-cse@sust.edu)
Abstract :
Sorting is a commonly used operation in computer science. In addition to its main job, sorting is often required to facilitate some other operations such as searching, merging and normalization. There are many sorting algorithm that are being used in practical life as well as in computation. A sorting algorithm consists of comparison, swap, and assignment operations. In this paper an enhanced version of the classical selection sort algorithm is presented, which eliminates some unnecessary comparisons to find the maximum…
Antibacterial Activity and DNA Interaction of the Pd(bpy)(ONO2)2 Coordination Complex
Corresponding Author : Muhammad Younus (myounus-che@sust.edu)
Abstract :
Antibacterial activity of Pd(bpy)(ONO2)2 complex (bpy = bipyridine) was studied by disc
diffusion method against Escherichia coli, Staphylococcus aureus, Klebsiella oxytoca,
Pseudomonas aeruginosa and Enterococcus faecalis. The compound was found to be active
against the bacteria. DNA binding constant of that complex was studied with extracted DNA from
lemon by UV-Vis spectroscopy. The calculated binding strength was found to be 2.09×106
which
is significantly higher than that of the [Pd(bpy)(OH2)2]
2+ complex with CT-DNA.
Calculation of Travelling Velocity of an Axisymmetric Vortex Ring
Corresponding Author : T. K. Sheel (tarunbd@gmail.com)
Abstract :
An initial value problem of the Navier-Stokes equation is solved, at low Reynolds numbers, for evolution of an axisymmetric vortex ring. The travelling velocity is written down in closed form over the whole time range, in term of the generalized hyper geometric functions, for a vortex ring starting with infinitely thin core. We show how the ideas of topology and variation principle, opened up by Euler, facilitate the calculation of motion of vortex rings. We consider finiteamplitude Kelvin waves on…
Catalytic Activity of 0.4% Rh Supported ZrP2O7 Catalyst for the NO-CO-C2H6-O2 Reactions Under Modula
Corresponding Author : Ahmed Jalal Samed (ajf-che@sust.edu)
Abstract :
Catalytic activity of the 0.4% Rh/ ZrP2O7 catalyst for the NO-CO-C2H6-O2 reactions under modulated air-to-fuel ratio (A/F) conditions were studied with a view to evaluate its catalytic performance under both oxidizing and reducing environment. In situ EXAFS experiments were carried out further to evaluate its catalytic performance. This newly developed catalyst exhibited outstanding 85% NO removal efficiency in oxidizing environment where conventional 0.4% Rh/ZrO2 catalyst showed 45% NO removal efficiency. The strong Rh-O-P linkage has been confirmed by EXAFS investigation…
DWBA Study of Reactions Using Different Optical Potentials
Corresponding Author : S. K. Das (skdas-phy@sust.edu)
Abstract :
Full Finite Range (FFR) Distorted Wave Born Approximation (DWBA) calculations have been performed using non-monotonic shallow (molecular), non-monotonic deep, Michel (SWS) and Woods-Saxon (WS) potentials to analyze the angular distributions of cross section for Ni t Cu 60 62, 64, 61 63, 65, (α, ) reactions at the incident energy 26.7 MeV. Shallow potentials and normal Wood-Saxon (WS) potential seem to be a bit better candidates for fitting experimental data. The spectroscopic factors are extracted for different potentials and compared…
Extended Bangla Keyboard
Corresponding Author : M. R. Selim (selim@sust.edu)
Abstract :
Bangla language has a big size character set. To fit all the characters within the existing keyboards, all the Bangla fixed keyboard layouts use several typing layers. Since using characters of a non-default typing layer requires pressing an extra key, it slows down the overall typing speed significantly. In this paper, to reduce the effect of multilayer typing, we propose to add some extra keys in the keyboards used by the Bangla language users. We show quantitatively the efficiency improvement…