Browsing Electronic Theses and Dissertations from 2009 by Discipline "Engineering"
Now showing items 1-20 of 36
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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 ... -
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 ... -
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 ... -
Experimental Investigation and Modelling of Sand Jets Passing through an Immiscible Layer
(2016)Sand jets passing through two immiscible liquids, water and oil have many applications in the field of civil and environmental engineering such as tailings transport, dredging and discharge of industrial and urban wastewater. ... -
Extracting lignocelluloses from various spent liquors via adsorption
(2015-10-20)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 ... -
Hydrodeoxygenation process for converting glycerol into bio-crude / by Matthew A. Tymchyshyn.
(2010)"Bio-energy is a clean (containing negligible sulfur and being near-carbon neutral), renewable and abundant source of energy. Bio-energy can be a potential alternative to fossil fuels for the production of energy and ... -
Image-based visual servoing of a VTOL UAV
(2009)Unmanned Aerial Vehicles (UAVs) are an area of significant research activity these days because of their use in dull, dangerous, and dirty tasks. Lack of human pilot paves the way for advanced and more sophisticated control ... -
Intelligent sliding mode control in flexible structures
(2012-11-10)The first objective of this work is to develop an intelligent sliding mode controller for vibration control in flexible structures. The proposed control consists of two processes: system identification and sliding mode ... -
Investigation of the impact of impurities on the properties of nitride semiconductors grown by RPECVD
(2015-10-21)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 ... -
Location-independent packet scheduling for wireless EPON
(2009)Ethernet Passive Optical Network (EPON) is the latest access technology, based on IEEE standards, utilizing an optical network architecture optimized for simple, economical delivery of voice, data, and video over native ...
