Now showing items 1-5 of 5
Investigation of the impact of impurities on the properties of nitride semiconductors grown by RPECVD
Progress toward the improvement of optical emission from InGaN optical active region devices is made through a combination of the tailoring of p-type gallium nitride growth recipes and bandstructure calculations on a graded ...
Online loss minimization based direct torque and flux control of IPMSM drive
With the advent of high energy rare earth magnetic material such as, third generation neodymium-iron-boron (NdFeB), permanent magnet synchronous motor (PMSM) is becoming more and more popular in high power industrial ...
Nonlinear adaptive control for robust wide speed range operation of IPMSM drives
Various applications, including robotics, spindle drives, machine tools, etc. rely on accurate, reliable controllers to deliver the required drive performance. With recent advances in magnetic materials and semiconductor ...
Effects of nutrients conditions and solids retention time (SRT) on performance and membrane fouling of aerobic membrane bioreactors (MBRs)
This thesis investigated the effect of chemical oxygen demand (COD) to nitrogen ratio (COD:N) in feed on the biological performance of aerobic membrane bioreactor (MBR). Meanwhile, the effects of nutrients condition (COD:N ...
Extracting lignocelluloses from various spent liquors via adsorption
The spent liquors of thermomechanical (TMP) and neutral sulfite semichemical (NSSC) pulping processes contain some lignocelluloses that are recently treated in the waste water of the processes, and thus wasted. In this ...