Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"Control Technologies"”.
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In Cylinder NOx Control Technologies for Marine Diesel Engines
In this work different internal and external EGR strategies, combined with extreme Miller cycles, were analyzed by means of a one dimensional CFD simulation code for a Wartsila 6 cylinder, 4 strokes, medium speed marine diesel engine, to evaluate their potential in order to reach the IMO Tier 3 NOx …
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Numerical Study of Metamaterial-Inspired Water Wave Control Technologies
… metamaterial concepts to water wave control technologies presents a promising approach, enabling wave redirection, concentration, cloaking, and sheltering. This study presents a numerical investigation using advanced computational fluid dynamics (CFD) methods to evaluate the …
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Managing the implementation of automotive emission control technologies using systems engineering principles
… rapid integration of new automobile emission technologies into production automobiles. Common themes and barriers to technology implementation are uncovered by systematically analyzing current production emission technology and exhaust gas after-treatment systems, and investigating how those …
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Distributed estimation and control technologies for formation flying spacecraft by Philip Andrew Ferguson.
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2003.
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Development and application of a probabilistic risk assessment model for evaluating advanced train control technologies
Quantitative research on risk and train control has traditionally relied exclusively on historical accident data. In this thesis, a model is developed that enables a probabilistic rather than statistical assessment of safety improvements achieved with advanced train control technologies. This …
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Evaluation of Dust Control Technologies for Drywall Finishing Operations: Industry Implementation Trends, Worker Perceptions, Effectiveness and Usability
… and personal-protective-equipment (PPE) control technologies for the mitigation of this hazard, worker exposures persist in the drywall finishing industry. This research employed a macroergonomic framework to evaluate this problem and identify barriers to dust control technology adoption …
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Behavioural and physiological responses of myzus persicae to ultraviolet light for the development of new pest control technologies
… for the purpose of improved agricultural pest control. Through access to experimental polyethylene horticultural films with novel transmission properties, I exploited new opportunities for exploring separate short- and long-wavelength mechanisms for pest suppression. The early experimental work …
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Industry Usage, Stakeholder Perceptions, and Usability Characteristics of Hazard Controls Leading to the Development of a Design Process and Taxonomy for Large Handheld Powered Equipment.
… Study 1 assessed current industry usage of dust control technologies and stakeholder perceptions in the concrete and masonry trades. Study 2 was similar but assessed emission control technologies in the asphalt roofing trade. Study 3 used the information from studies 1 and 2 to select a tool for …
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Aerosol Filtration And Separation
… 2009 Professor Da-Ren Chen, Advisor Particle control technologies are essential in many manufacturing industries: chemical, electronic, mineral, and food and beverages) as well as in pollution abatement and environmental control: for example, clean rooms and post processing of power plant …
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The programmable logic controller : its prehistory, emergence and application
Programmable Logic Controllers (PLCs) are widely used devices controlling industrial machines and processes and many other diverse applications, requiring primarily, combinatorial logic and sequential control. The PLC is a hidden technology, little known by the general public and overlooked in …
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Technology and policy options for reducing industrial air pollutants in the Mexico City Metropolitan Area
… solutions alone, such as end-of-pipe and process control technologies, can achieve substantial and sustained emissions reduction from the industrial sector in the Mexico City Metropolitan Area (MCMA). Environmental standards for most of the criteria pollutants have frequently been violated in the …
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MACT Implementation at an Organic Chemical Manufacturing Facility: Human Health Risk Reduction
… Louisiana prior to and after Maximum Achievable Control Technologies (MACT) were implemented. The results indicate significant reductions in both cancer risk and non-cancer hazards. The analysis also indicated that the equivalent cancer risk reduction could have been achieved by addressing MACT …
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Evaluation of detection technologies for use in traffic management and control
In this project, various detection technologies were evaluated for their usefulness in traffic management and control. Technologies that can be installed above or to the side of the roadway were considered as possible replacements for inductive loop detectors because of the difficulties associated …
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Oxy-Coal Combustion: Submicrometer Particle Formation, Mercury Speciation, And Their Capture
… environmental challenges, including the control of particulate matter, mercury, and trace metals, and carbon oxide: CO2) emissions. The rising of CO2 level in the atmosphere due to burning of fossil fuels is one of the major factors contributing to the global climate change. Capturing CO2 …
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Hardware Testbed for Relative Navigation of Unmanned Vehicles Using Visual Servoing
… development of relative navigation sensing and control techniques is quite challenging, in part because of the difficulty of accurately simulating the physical relative navigation problems in which the control systems are designed to operate. A hardware testbed that can simulate the complex …
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Catalytic control of individual hydrocarbons from a small utility gasoline engine
… 1999 standards may require the use of emission control technologies such as catalytic converters because they are more stringent. In this research catalytic control of individual hydrocarbons such as methane, ethylene, benzene, and toluene were evaluated. A platinum coated catalyst treated …
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TBD Economic Impact of Fruit Flies in Mango Production in Senegal: Ex-Post Analysis of mango losses in Ziguinchor (Casamance)
… on losses from infestation. The use of fruit fly control technologies does not appear to significantly reduce losses.
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Development of a Sensor for Inflight Detection of Three-Dimensional Flow Separation on a Wing
… It would also contribute to future separation control technologies. A new idea is presented for a sensor that is cost effective, easy to maintain, durable, and highly effective. The system, known as a Thermal Grid, works by using a grid of heaters and temperature sensors to trace out the …
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Aerosol Filtration -- Agglomerate Particle Filtration and Particle Deposition Uniformity
<p>Particle control technologies are essential in many manufacturing industries (electronic and chemical industrial, mineral processing, and food and beverages) as well as in pollution abatement and environmental control (for example, post processing of power plant emissions and clean rooms). A …
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