Browsing by Discipline
Now showing items 1-20 of 64
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Adaptive backstepping based nonlinear control of an interior permanent magnet synchronous motor drive
(2005)Permanent magnet synchronous machines (PMSM) have shown increasing popularity in recent years for industrial drive applications due to the recent developments in magnetic materials, power converters, and digital signal ... -
Adaptive backstepping based online loss minimization control of an induction motor drive / by San Woo Nam.
(2006)The efficiency of an induction motor (IM) can be improved by the optimum selection of a flux level in the motor. Among the numerous loss minimization algorithms (LMA), a loss-model-based approach offers a fast response ... -
Adsorption and microflotation studies with pure minerals and an arylhydroxamic acid collector
(2009)A study was conducted to understand the adsorption of N-hydrocinnamoyl-N-phenylhydroxyl-amine (HCNPHA) on the surfaces of various pure minerals: sphalerite, pyrite, galena, chalcopyrite and quartz. HCNPHA is a member of ... -
Analysis of improvement for turn on/off performance of the MOSFET gate drive waveform
(2012-11-10)This thesis shows that the gate waveform of a power MOSFET driven by a specialized driver chip used in industry is imperfect and induces increased power loss in the MOSFET and lowers overall efficiency. The accurate ... -
Autonomous navigation algorithms for indoor mobile robots
(2009)In many autonomous mobile robotic applications, the capability of finding a good path is of primary importance, especially for the places which are cluttered by random obstacles that may appear on the robot's path. -
Boosting performance of transactional memory through transactional read tracking and set associative locks
(2013)Multi-core processors have become so prevalent in server, desktop, and even embedded systems that they are considered the norm for modem computing systems. The trend is likely toward many-core processors with many more ... -
Catalytic decomposition of ammonia and tar for hot gas cleanup in biomass gasification using activated carbon supported catalysts and natural limonite ores
(2009)Biomass gasification produces a gas (or syngas) containing primarily CO2, H2, CO, CH4 and (C2+C3), as well as some contaminants such as tars, NH3, H2S and SO2. In order to achieve better efficiencies of the syngas applications, ... -
Catalytic gasification of biomass for the production of syngas with reduced tar formation
(2009)With increased concerns over greenhouse gas emission and decreasing fossil fuel supplies, biomass is increasingly seen as an alternative option for energy and chemical production. There are several technologies available ... -
The Correlations and the power characteristics of special classes of binary sequences for multicarrier communications
(2009)In recent years, multicarrier communication has attracted considerable attention as a promising technology that enables transmission of high data rates. One of major drawbacks of multicarrier communications is the high ... -
Design and control of a 10 DOF biped robot
(2009)Compared to wheeled robots, biped robots have their advantages. Biped robots have better mobility. Biped robots can walk in human environments, such as rough terrain and the place that contains obstacles, and can also climb ... -
Design and control of a 6 DOF biped robot
(2006)This thesis is composed of the following five parts: construction of a 6 Degrees of Freedom (DOF) biped robot, control system design, analysis of forward kinematics and inverse kinematics, walking pattern planning, and ... -
Design, analysis and passive balance control of a 7-DOF biped robot
(2007)Biped robots have many advantages than traditional wheeled or tracked robots. They have better mobility in rough terrain and can travel on discontinuous path. The legs can also provide an active suspension that decouples ... -
Development and analysis of a self-tuned neuro-fuzzy controller for induction motor drives
(2005)Induction motors (IM) have been widely utilized in industry for variable speed drives due to some of their advantages, such as rugged construction, low cost and reliable service with easy maintenance, as compared to ... -
Development and implementation of various speed controllers for wide speed range operation of IPMSM drive / by Md Muminul Islam Chy.
(2007)Despite many advantageous features of interior permanent magnet synchronous motor (IPMSM), the precise speed control of an IPMSM drive becomes a complex issue due to nonlinear coupling among its winding currents and the ... -
Dynamic modeling and analysis of circumferential and spiral waves in piezoelectric cylinders
(2012)Understanding the dynamic characteristics of ultrasonic guided wave in structures is important, as it is one of the methods that are widely used in many different areas of industrial sectors and inspections, such as ... -
Effects of freezing on UV inactivation of waterbourne microorganisms
(2009)In northern communities where source water may be frozen for parts of the year or wastewater is treated using freezing technology, the efficiency of UV inactivation may be affected. This research was carried out to investigate ... -
Effects of nutrients conditions and solids retention time (SRT) on performance and membrane fouling of aerobic membrane bioreactors (MBRs)
(2015-10-21)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 ... -
Effects of sucrose and sorbitol on cement hydration applications to cement stabilization of metal waste
(2007)Cement-based stabilization/solidification (S/S) is a widely used technique to treat industrial wastes containing toxic metal ions before land disposal. To prevent the fast setting of the treated waste during its transportation ... -
Efficiency optimal control of interior permanent magnet synchronous motor / by Fasil Abera.
(2009)There has been a growing concern over energy consumption since the past decade mainly because of the soaring cost of energy and tight environmental laws and regulations. In this thesis a model based efficiency optimization ... -
Evolving neural fuzzy classifier for machinery diagnostics / by Ofelia Antonia Jianu.
(2010)"The classical techniques for fault diagnosis require periodic shut down of machines for manual inspection. Although these techniques can be used for fault diagnosis in simple machines, they can rarely be used effectively ...
