Vol. 11 No. 2 (2019)

Published: 2019-05-01

Section A: Physical and Mathematical Sciences

A Short Note on Minimal Length

M. Moniruzzaman, S. B. Faruque

151-155
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Petrographic Characterization of Selected Sidewall Core Samples from NG-1 Well, Niger Delta, Nigeria: Palaeoclimatic Implication

O. Odedede

157-164
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Comparative Study of the Volume Charge Density in Most General Lorentz Transformation and Quaternion Lorentz Transformation

A. R. Baizid

165-171
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Numerical Investigation of Natural Convection Flow in a Hexagonal Enclosure Having Vertical Fin

M. Fayz -Al- Asad, M. M. A. Sarker, M. J. H. Munshi

173-183
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Transmuted Alpha Power Inverse Rayleigh Distribution: Properties and Application

A. S. Malik, S. P. Ahmad

185-194
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Investigation of Sodium Doped Lanthanum Manganite in Optical, Dielectric and Capacitive Perspective Prepared by Flux Method

R. Majumder, M. A. R. Sarker, M. M. Hossain, M. E. Hossain, D. Shen, A. K. M. S. Reza, M. H. Kabir

195-207
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Volume Charge Density in Mixed Number Lorentz Transformation

S. A. Bhuiyan

209-214
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Section B: Chemical and Biological Sciences

Synthesis and Application to Polyester and Nylon 6 Fabrics of Hetaryl Bis-Azo Disperse Dyes Based on 6-Amino-2,4-Dihydroxypyrimidine and 4-Methoxy-2-Nitroaniline Moieties

O. J. Otutu, A. K. Asiagwu

215-224
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Single-Step Synthesis of Manganese Ferrite Nanoparticles with Enhanced Magnetization via Chemical Co-precipitation Route

S. Pande, M. M. Islam, S. C. Mohanta, Nasir Uddin

225-234
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Evaluation of Aspergillus niger as a Biocontrol Agent in the Insect Pest Management of Red Cotton Bug, Dysdercus koenigii (Heteroptera: Pyrrhocoridae)

D. Kumar, S. Kumari, D. Verma

235-247
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