Results for “"Shafayat Ahmed"”

Shafayat Bin Shabbir Mugdha, Sayeda Muntaha Ferdous, Ahmed Fahmin

In this world of modern technologies and media, online news publications and portals are increasing at a high speed. That is why, nowadays, it has become almost impossible to check out the traditional fact of news headlines and examine them due to the increase in the number of content writers, onlin...

Md Shafayatul Islam, K. Roy Chowdhury, S. Manjura Hoque, Ahmed Sharif

The potential of oxide-based dilute magnetic semiconductors (DMSs) for use in spintronics and magneto-optic devices has garnered a lot of attention over the years.

Md Shafayatul Islam, S. Manjura Hoque, Mizanur Rahaman, Muhammad Rakibul Islam et al.

The large number of active sites in the layered structure of δ-MnO2 with considerable interlayer spacing makes it an excellent candidate for ion storage. Unfortunately, the δ-MnO2-based electrode has not yet attained the exceptional storage potential that it should demonstrate because of disappointi...

Quazi Shafayat Hossain, Shahran Ahmed, Sadiq Shahriyar Nishat, Md. Zarif Hossain et al.

functionals. Our as-synthesized HCBO shows ∼70% photocatalytic efficiency in degrading methylene blue dye under 3 h optical illumination. This DFT-guided experimental approach to CBO may help to gain a better understanding of its functional properties.

Md. Zarif Hossain, Sadiq Shahriyar Nishat, Shahran Ahmed, Quazi Shafayat Hossain et al.

1̄ crystal symmetries along with their respective phase purity have been confirmed from Rietveld refinement of the powdered X-ray diffraction measurements in combination with generalized gradient approximation of Perdew-Burke-Ernzerhof (GGA-PBE) based DFT simulations. The scanning electron micrograp...

Tasnim Ahmed Mahi, Quazi Shafayat Hossain, Sadiq Shahriyar Nishat, Shahran Ahmed et al.

<h2>Abstract</h2> Here we investigated the effects of Ce and Mo doping on hydrothermally synthesized bismuth vanadate BiVO₄ nanoparticles (NPs). The existence of monoclinic scheelite and tetragonal zircon phases of NPs was validated from Rietveld refinement of the powdered X-ray diffracti...

Quazi Shafayat Hossain, Sadiq Shahriyar Nishat, Mohsina Sultana, Tasnim Ahmed Mahi et al.

The computationally cheap DFT functional GGA-PBE+ U d + U p with van der Waals force in effect has successfully probed the physical properties of experimentally synthesized Bi 2 WO 6 .

Mohammad Wahidur Rahman, Md Shafayat Hossain, Ahmedullah Aziz, Farseem Mannan Mohammedy

Limited fossil fuels will soon not be enough to meet up the energy-shortage in Bangladesh and therefore enhanced attention must be given to utilize renewable energy sources. Solar and wind are two prominent renewable energy sources in Bangladesh. We propose an optimum decentralized solar PV-wind-bio...

Mohammad Wahidur Rahman, Shafayat Naznoor Ahmed, Sheikh Ifatur Rahman, Md. Ashraful Hoque

This paper has numerically evaluated the performance of a proposed modified structure of thin film solar cell based on CdS/CdTe. In this proposed cell, conventional CdTe layer has been used as absorber, but a new back contact Ni has been used along with newly introduced 100 nm thick ZnO layer to inc...

Asif Ahmed Neloy, Muhammad Shafayat Oshman, Md. Monzurul Islam, Md. Julhas Hossain et al.

Md. Nagib Mahfuz, Appy Feroz Nura, Md Shafayatul Islam, Tomal Saha et al.

Ga doping at the B-site of LLTO solid electrolytes significantly enhances ionic conductivity due to increased B–O bond length and larger grain size. This makes Ga-LLTO a promising candidate for high-performance all-solid-state lithium-ion batteries.

Md. Rafatul Haq, Nusaibah Ehsan, Sadiq Shahriyar Nishat, Quazi Shafayat Hossain et al.

Here, we present a theoretical and experimental investigation of hexagonal P3121 and monoclinic P21/n bismuth phosphate BiPO4 (BPO). The Hubbard U-corrected density functional theory (DFT+U) failed to tune the electronic band gap of BPO due to the negligible contribution of Bi 5d orbitals near the b...

Aamir Ahamed, Md Rubel Ahmed, Md. Iquebal Hossain Patwary, Shafayat Hossain et al.

With todays increasing technologies, people also are using robots in different sectors of human life to make life easier. Meanwhile, in the care of patients, robots are used in the medicare system. A nursing robot has the ability to carry out basic nursing care functions as expected by the patients ...

Md Shafayat Hossain, Ariyan M. Kabir, Pratyai Mazumder, Ahmedullah Aziz et al.

The y4 copter is intended to be a UAV (Unmanned Aerial Vehicle) with autonomous subsystems. Automation is implemented in case of maintaining the desired roll, pitch and yaw. An improved algorithm that uses Quaternion is implemented to determine Euler angles avoiding Gimbal lock. It has a self-stabil...