Browsing by Author "Jahidul Islam"

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    Electron Matter-wave Tractor Beams: Study & Simulation of Quantum-Mechanical Stress and Force
    (North South University, 2022) Md. Arifur Rahman; Md. Mahabub Alam Arafin; Jahidul Islam; Dr. Mahdy Rahman Chowdhury; 1822038043; 1813241043; 1812555043
    Classical force equations describing the macroscopic universe have been studied and applied extensively throughout the past three centuries. However, the study & simulation of quantum-mechanical stress & force in the microscopic domain remain scantily explored. We attempt to accelerate the research of microscopic scenarios involving quantum-mechanical forces and successfully devise a COMSOL Multiphysics simulation setup and derive all the corresponding mathematical formulations to observe a wide array of quantum-mechanical phenomena, in particular, the simulation of electron matter-wave tractor beams in COMSOL Multiphysics 6.0.
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    Transmission Gate vs Other Logic Styles
    (North South University, 2023-12) Jahidul Islam; Tamima Tabassum; Dr. Nafisa Noor; 2013635043; 2011223043
    This research paper analyzed the correlation among 3 members of the logic family, they are TGL, CMOS and PTL. It compares the basic structure, operation, voltage levels, power consumption, application, complexity and scalability between them. We have simulated various MUXes and DEMUXes and examined the data. The results revealed that TGL is great when you need switches that work bidirectionally without messing up the signal. CMOS is like the go-to for digital logic design because it's super balanced in terms of power, speed, and space. PTL is a smaller option for specific logic functions, but it can have some issues with voltage. It all comes down to what we need for our design, considering factors like power, performance, area and complexity.