Thesis Title: Dynamic shock response of a polycrystalline high-entropy alloy (HEA): a classical molecular dynamics simulation study 

Objectives:

• To investigate phase transformation during shock

• To observe microstructural evolution during shock

• To study the slip system and dislocation dynamics under shock

Methodology:

• All the simulations will be performed using LAMMPS

• The piston method will be used for applying shock loading

• EAM potential will be used to define the force field interaction among the elemental atoms

• OVITO will be used to visualize the shock simulation and to perform DXA, PTM analysis

• Atomsk will be used to create the initial single crystalline structure

• MATLAB will be used to post-process different calculations and graph production

Thesis Title: Assessment of Indoor Air Quality in Dhaka Using IoT Sensors 

Objectives:

• To investigate the Particulate Matter (PM2.5) levels in indoor Dhaka.

• To identify the potential source of particulate matter (PM2.5) in those residential indoor environments.

Methodology:

• Conducted a questionnaire survey to list the potential sources of PM2.5 emissions.

• Installed Purple Air sensors (IoT) in some residential houses to investigate PM2.5 levels.

• Carried out statistical analysis to determine the relationship between household activities and PM2.5 emissions.

Key findings:

• PM2.5 levels aren’t correlated strongly with temperature or humidity.

• Cooking activity causes a substantial amount of PM2.5 emissions.

• Ventilation and PM2.5 emissions are not directly related but are affected by other factors such as outdoor air quality, airflow, wind speed, and so on.