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Chittagong, Bangladesh

The University of Chittagong is a public research university located in the suburban area of the Hathazari, Chittagong district, Bangladesh. Established in 1966, the campus is 22 kilometers north of Chittagong City. It is a multidisciplinary research university and one of the largest universities in Bangladesh with about 22,000 students and about 750 faculty members. Wikipedia.

Ashrafuzzaman K.,Chittagong University | Kwak K.S.,Inha University
IEEE Communications Letters | Year: 2011

Employing relatively simple constructs, this letter presents an analytical model for the slotted CSMA/CA algorithm adopted in the contention access period of the beacon-enabled mode MAC in IEEE 802.15.4. The analysis is validated against simulation vis-a-vis another related model. © 2011 IEEE.

Miah M.I.,Chittagong University
Materials Today: Proceedings | Year: 2015

The basic requirements necessary in developing semiconductor spintronic devices are the efficient generation and detection of spin current in semiconductors. Since in spintronic devices the information is carried by the electron spin, an electrical means of detecting spin current in semiconductors is desirable for fully exploring the possibility of utilizing spin degree of freedom and for possible device applications. By reviewing the potentials and the recent success and understanding of spintronics, we demonstrate a technique for the electrical detection of optically generated spin current in semiconductors. The results show that the effect resulting from the spin current depends strongly on the strength of the applied electric bias acted on the spin-polarized electrons. The results are presented and discussed. © 2015.

Hossain M.M.,Chittagong University
Plant Tissue Culture and Biotechnology | Year: 2013

In vitro embryo morphogenesis and micropropagation of Dendrobium aggregatum Roxb. were described. The gradual developmental stages of embryos to seedlings were traced out. Within two weeks of culture the cells of undifferented embryos underwent repeated aniclinal and periclinal division producing a compact, green parenchymatous cell mass called spherule that emerged out by rupturing the testa. The spherules subsequently differentiated into greenish protocorms were considered as typical seed germination. Germination occurred on both (MS and Phytamax (PM) medium but MS medium proved to be more efficient. The primary protocorms underwent profuse proliferation through production of secondary (2°) protocorms when transferred to different plant growth regulators (PGRs) supplemented MS; the medium fortified with 2.0 mg/l BAP and 1.0 mg/l NAA proved to be most effective for induction of 2° protocorms and seedling development. Multiple shoot buds (MSBs) were induced in pseudobulb segments of the in vitro grown seedlings when cultured on different PGRs supplemented media; and the maximum number of MSBs were obtained MS + 2.0 mg/l BAP + 0.5 mg/l picloram. The MSBs underwent elongation and then they rooted when they were transferred to half strength of MS + 0.5 mg/l IAA. The well rooted plantlets were finally transferred to outside natural environment with 80% survival.

Miah M.I.,Chittagong University
Materials Today: Proceedings | Year: 2015

We perform a theoretical investigation to estimate the hydrogen storage capacity in carbon-based spiral-nanostructures (CSNSs). The chosen storage systems are both intrinsic and lithium-doped CSNSs. The results show that due to small interlay distance intrinsic CSNSs do not uptake hydrogen at ambient pressure and temperature. However, lithium-doped CSNSs can uptake significant amount of hydrogen, giving an uptake capacity of 3.3 wt%. © 2015.

Alam E.,Chittagong University
Disasters | Year: 2010

For generations, cyclones and tidal surges have frequently devastated lives and property in coastal and island Bangladesh. This study explores vulnerability to cyclone hazards using first-hand coping recollections from prior to, during and after these events. Qualitative field data suggest that, beyond extreme cyclone forces, localised vulnerability is defined in terms of response processes, infrastructure, socially uneven exposure, settlement development patterns, and livelihoods. Prior to cyclones, religious activities increase and people try to save food and valuable possessions. Those in dispersed settlements who fail to reach cyclone shelters take refuge in thatched-roof houses and big-branch trees. However, women and children are affected more despite the modification of traditional hierarchies during cyclone periods. Instinctive survival strategies and intra-community cooperation improve coping post cyclone. This study recommends that disaster reduction programmes encourage cyclone mitigation while being aware of localised realities, endogenous risk analyses, and coping and adaptation of affected communities (as active survivors rather than helpless victims). © 2010 The Author(s). Journal compilation © Overseas Development Institute, 2010.

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