Description
Chair: Dr. Nor Azizah Parmin
Co-chair: Dr. Retno Sari
Propeller imbalance is one of the most frequent causes of excessive vibration in multicopter UAVs. It often occurs after a crash, a hard landing, or when the propeller clips an obstacle during flight, and the resulting vibration can reduce the maneuverability of the drone. Instead of using an accelerometer on each arm, which increases airframe mass and adds extra data channels that the flight...
Coffee-pulp-derived carbon quantum dots (CQDs) were synthesized via a hydrothermal method and systematically characterized to assess their potential for energy storage applications. Photoluminescence studies revealed tunable emission and a high quantum yield, indicating well-passivated surfaces with abundant functional groups. SEM analysis revealed a porous and fragmented electrode morphology...
Ba₀.₅Sr₀.₅TiO₃ (BST) thin films have attracted considerable attention for optoelectronic and sensing applications owing to their tunable optical characteristics. This study investigates the effect of manganese (Mn) doping on the optical properties of BST thin films with Mn concentrations of 0.0, 0.5, and 1.0 wt.%. The thin films were synthesized using the Chemical Solution Deposition (CSD)...
Barium Strontium Titanate is a perovskite material known for its tuneable optoelectronic properties. Its optical properties are influenced by many factors including dopant incorporation and processing history. In this research, copped – doped Ba0.375Sr0.675TiO3 thin films were prepared from a seven – month old precursor. The study aims to investigate the combined effects of Cu incorporation...
Ba₀.₇₅Sr₀.₂₅TiO₃ thin films doped with ruthenium (0.0% and 0.5%) were successfully fabricated on p-type Si (100) substrates using the Chemical Solution Deposition (CSD) method assisted by spin coating at a rotation speed of 3000 rpm for 30 seconds, with the coating process repeated three times. A precursor solution with a concentration of 0.5 M was employed and aged for seven months prior to...
Quantum cascade lasers (QCLs) are highly efficient sources of mid-infrared and terahertz radiation, but they require precise numerical modeling to optimize their performance. This study aims to comprehensively model the dynamics of QCLs by analytically deriving the Maxwell-Bloch equations. These coupled nonlinear equations are then discretized using the Finite Difference Time Domain (FDTD)...
Microfluidic systems have become an essential platform for biomedical and drug delivery applications due to their ability to precisely manipulate minute volumes of fluids within microscale channels. Conventionally, polydimethylsiloxane (PDMS) microfluidic devices are fabricated using SU-8 molds produced through photolithography, which requires cleanroom facilities, expensive chemicals, and...
Abstract. Industrial drying is an energy-intensive process in which manual monitoring of process parameters limits the continuous assessment of thermal performance. At the investigated industrial facility, process parameters were manually recorded from instrument panels, resulting in discrete datasets that lim-ited the assessment of continuous energy performance. This study developed a...
