A5103402761- Structural Load-Bearing Analysis
- Structural Behavior of Reinforced Concrete
- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Structural Analysis and Optimization
- Conducting polymers and applications
- Structural Engineering and Vibration Analysis
- Structural Response to Dynamic Loads
- Electrochemical Analysis and Applications
- Luminescence Properties of Advanced Materials
- Concrete Corrosion and Durability
- Fire effects on concrete materials
- Radioactivity and Radon Measurements
- Analytical Chemistry and Sensors
- Semiconductor materials and devices
- Photochemistry and Electron Transfer Studies
- Radiation Detection and Scintillator Technologies
- Molecular Junctions and Nanostructures
- Graphite, nuclear technology, radiation studies
- Structural Analysis of Composite Materials
- Smart Materials for Construction
- Agricultural risk and resilience
- Digital Radiography and Breast Imaging
- Radiation Therapy and Dosimetry
- Health Systems, Economic Evaluations, Quality of Life
Bangladesh Atomic Energy Commission
2014-2025
Bangladesh University of Engineering and Technology
2012-2023
University of Dhaka
2021
University of Arkansas at Little Rock
2015-2020
Balochistan University of Engineering and Technology
2016
University of Alberta
2007
Yokohama National University
2000
Prediction of the behavior partially encased composite (PEC) columns by finite-element modeling presents a challenging problem due to local buckling thin steel flange plates and rapid volumetric expansion concrete near ultimate load. The use dynamic explicit formulation damage plasticity model has permitted good predictions capacities both uniaxially eccentrically loaded PEC column tests reported in literature. provides representations axial deformation at peak load, postpeak behavior,...
Vertically aligned catalysts comprised of platinum–nickel thin films on nickel nanorods (designated as Pt–Ni@Ni-NR) with varying ratios Pt to Ni in the film were prepared by magnetron sputtering and evaluated for their oxygen reduction reaction (ORR) activity. A glancing angle deposition (GLAD) technique was used fabricate (NRs) a small growth conformal coating Pt–Ni Ni-NRs. The Pt–Ni@Ni-NR structures deposited glassy carbon evaluation ORR activity an aqueous acidic electrolyte using...
This paper presents a detailed parametric study, conducted using finite element tools to cover range of several geometric and material parameters, on the behaviour thin-walled partially encased composite (PEC) columns. The PEC columns studied herein are composed built-up H-shaped steel sections with concrete infill cast between flanges. Transverse links provided opposing flanges improve resistance local buckling. study is confined eccentrically-loaded subjected major axis bending only....
In this study, we developed a stacked core–shell nanorod array electrocatalyst design to improve oxygen reduction reaction (ORR) kinetics and catalyst stability for polymer electrolyte fuel cell (PEMFC) applications. For purpose, fabricated two-layer arrays with each layer consisting of tungsten carbide (WC) core platinum–nickel (Pt–Ni) alloy shell. WC nanorods were grown by glancing angle deposition (GLAD) method. Then, coated Pt–Ni shell conformally high-pressure sputtering (HIPS) This...
Cyclic voltammetric behavior of a nonionic surfactant, α-(anthraquinonyloxyhexyl)-ω-hydroxy-oligo(ethylene oxide), ACPEG, has been studied in detail aqueous media with NaCl as the supporting electrolyte. Attempts have made to correlate electrochemical responses dissolved states surfactant. The shapes cyclic voltammograms at glassy carbon electrode proved be fairly dependent on concentration ACPEG and redox state anthraquinone group. Below critical micelle (cmc), voltammogram (v = 10 mV/s)...
This paper presents numerical simulations of partially encased composite columns (PEC) with equivalent steel sections. The section PEC column consists thin walled welded H- shaped transverse links provided at regular intervals between the flanges. Concrete is poured in space flanges and web plate. Most structural analysis design software do not handle such members due to highly nonlinear material behavior concrete as well complex interfacial behaviour concrete. In this an attempt has been...
Polymer electrolyte membrane fuel cells (PEMFCs) among the other types of cell technology are attractive power sources, especially for electric vehicle applications. While significant progress and plausible prospects PEMFCs have been achieved, there still some challenges related to performance, durability, cost that need be overcome make them economically viable widespread commercialization. Our strategy is develop thin films high-active stable catalyst coated on vertically aligned nanorod...
Platinum thin films with different densities were grown on glassy carbon electrodes by high pressure sputtering deposition and evaluated as oxygen reduction reaction catalysts for polymer electrolyte fuel cells using cyclic voltammetry rotating disk electrode techniques in aqueous perchloric acid electrolyte. The electrochemically active surface area, ORR mass activity (MA) specific (SA) of the film obtained. MA SA found to be higher low-density than high-density film.