Md Khairul Alam

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The shrimp sector is the second largest export earner for Bangladesh, which is a major contributor in the national economy of Bangladesh. It also provides millions of employment. Every year a huge amount of shrimps are rejected to export due to its pathogenic bacterial contamination. A comparative study regarding prevalence and antimicrobial susceptibility(More)
The aim of the present study was to get a total physical and chemical characterization and comparison of the principal components in Bangladeshi buffalo (B), Holstein cross (HX), Indigenous cattle (IC) and Red Chittagong Cattle (RCC) milk. Protein and casein (CN) composition and type, casein micellar size (CMS), naturally occurring peptides, free amino(More)
Electricity generation purposes renewable energy brings a important role especially Photovoltaic (PV) panels that can be covered our basic energy (electricity) needs. This photovoltaic panels cover a domestic level (solar power for home), commercially (solar power for commercial applications) or at the community level. Here used this photovoltaic panel as(More)
The natural regeneration of the tree species in pure natural forest stand and enrichment plantations of Baraitali Forest of Chittagong (South) Forest Division, Bangladesh was studied by stratified random quadrat method during April 2002 to November 2002. Totally 100 plots of 3 m × 3 m in size represents a total of 64 regenerating tree species from natural(More)
Triple-gate FinFETs have made rapid developments in the field of nanoelectronics industry due to their high immunity to short-channel effects, improved subthreshold swing, and channel mobility, etc. leading to improved speed and reduced power consumption. However, high parasitic capacitances at the gate limit their computational speed and analog/RF(More)
Omega gate nanowire FETs are simulated for various device dimensions and the effects of such scaling on threshold voltage as well as on subthreshold slope are studied. Fast Uncoupled Mode Space approach along with effective mass approximation is used to study the device characteristics. A new parameter called the “omega factor” is introduced(More)
In<sub>x</sub>Ga<sub>1-x</sub>Sb-based double heterojunction bipolar transistor (DHBT) with compositional graded base and collector is presented. A numerical device simulator Silvaco's ATLAS is used to analyze the performance of the device. The Gummel plots and simulation analysis demonstrate extremely high DC current gain with uniform characteristic for(More)
The dynamics of fullerene self-insertion into carbon nanotubes in water are studied by molecular dynamics simulations. It is revealed that the van der Waals interaction between the nanotube and fullerene introduces a spontaneous insertion of fullerene molecule inside the nanotube in the presence of water molecules when the initial separation between the(More)
This study was conducted to know cropping cycles required to improve OM status in soil and to investigate the effects of medium-term tillage practices on soil properties and crop yields in Grey Terrace soil of Bangladesh under wheat-mungbean-T. aman cropping system. Four different tillage practices, namely, zero tillage (ZT), minimum tillage (MT),(More)
In this paper, InGaSb based n-MOSFET model is proposed under unstrained, and 0.7% and 1.7% compressive strained conditions. Using well known Silvacos's ATLAS device simulator the I<sub>D</sub>-V<sub>G</sub>, I<sub>D</sub>-V<sub>DS</sub>, mobility, subthreshold swing and threshold voltage characteristics are simulated and analyzed. The performance of the(More)