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 45 for “"Alternative control"”.
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Evaluation of Alternative Control Methods for Eliminating Insecticide-Resistant Bed Bugs (Cimex lectularius L.)
… insecticides are known to be ineffective for controlling modern bed bug populations. This study evaluates alternative treatment methods such as whole-home heat, a biological control agent (Beauveria bassiana), and the fumigant sulfuryl fluoride for control of insecticide-resistant bed bugs. …
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The Wind Cave National Park Elk Herd: Home Ranges, Seasonal Movements, and Alternative Control Methods
… one-way elk gates were developed as an alternative to elk roundups. Preliminary analysis indicated that elk move through the gates in the intended direction and that one-way gates may be a viable option for elk population control.</p>
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The Use of a Factory Simulation to Evaluate a Flexible Control Structure for Integrated Manufacturing
<p>Once a control structure for an integrated manufacturing system is decided upon, manufacturing activities are limited by that structure. A flexible control structure is presented as an approach for accommodating a variety of manufacturing activities, without being limited to a single control …
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Non chemical alternatives for pest management: Entomopathogenic nematodes and UV-C light
… are to determine effective biological and alternative control strategies of insect and disease pests in order to reduce harsh chemical use during greenhouse crop production and transport s. This research includes two separate studies: 1) testing the practical viability of rearing and …
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Electromechanical design of a body weight support system for a therapeutic robot for rodent studies
… prototype. In addition, a closed loop feedback control system was designed, simulated, constructed and tested. Hardware limitations were identified, and alternative control techniques were explored.
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Motion control of long span horizontal structures
… damping. These three properties traditionally controlled motion-related serviceability issues, but this is no longer the case. Engineers are increasingly reporting vibration problems in horizontal structures. Hence, the dominant design criterion has shifted from a basis of strength to one of …
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Feedback control of separation in unsteady flows
… and hence can be used in an active feedback control of separation. Feedback control has been shown to lead to performance improvement in a range of aerodynamic applications, but no rigorous feedback law has been constructed for lack of a detailed understanding of separation. In this work, we …
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ToxIN-mediated resistance to and cell-free production of Salmonella bacteriophages
… Though numerous strategies are implemented to control foodborne Salmonella, many come with limitations that reduce their efficacy or restrict which foods can be treated. An alternative control strategy that addresses these limitations is the application of bacteriophage cocktails, consisting of …
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Food Safe Alternatives to Methyl Bromide in Country Ham Production
… Methyl bromide, a chemical fumigant used to control mite populations, is damaging to stratospheric ozone and will no longer be available. Presently, no alternative control measure has been approved to combat the ham mite; therefore, it is essential to identify potential alternatives. Interest …
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Resistance evaluation and management of Colorado potato beetle, Leptinotarsa decemlineata (Say), using novel chemistries
… of this pest relies heavily on chemical control and insecticide resistance is a persistent problem. This phenomenon has increased the need for developing novel insecticides, resistance evaluation, and the development of alternative control strategies regarding this insect pest. From 2010 …
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Petroleum refining and air quality management
… topics including characteristics of emissions, control technology applied, regulations and legislative issues, monitoring and modeling practices, and issues of the 1980s together with future projections and implications. Air quality regulations and standards are periodically revised and are …
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Dual Mode Macro Fiber Composite-Actuated Morphing Tip Feathers for Controlling Small Unmanned Aircraft
… The industry has become interested in alternative control surfaces and uses for smart materials. A Macro Fiber Composite (MFC), a smart material, takes advantage of the piezoelectric effect and provides an attractive alternative actuator to servos in the Small Unmanned Aerial Systems …
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Income inequality and economic growth
… the structural features of the economies are controlled for. If they do, then countries will converge to multiple regimes even if the structural features are controlled for. This dissertation is designed to investigate whether the world is characterized by a single or multiple regimes. The …
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Development of a Model and Optimal Control Strategy for the Cal Poly Central Plant and Thermal Energy Storage System
… for use in determining an optimal operating control strategy. The model was developed using a transient systems simulation program (TRNSYS) that includes plant performance and manufacturer data for the primary system components, which are comprised of pumps, chillers, cooling towers, and a …
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Muscle activation mapping of skeletal hand motion: an evolutionary approach.
Creating controlled dynamic character animation consists of mathe- matical modelling of muscles and solving the activation dynamics that form the key to coordination. But biomechanical simulation and control is com- putationally expensive involving complex di erential equations and is not suitable …
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Investigating host plant selection of harlequin bug, Murgantia histrionica (Hahn), in order to improve a trap cropping system for its management
… histrionica (Hahn), is a pest of cole crops. Alternative control strategies were investigated for control of HB, including trap cropping and systemic neonicotinoid insecticide applications. Potential trap crops, mustard (Brassica juncea "Southern Giant Curled" ), rapeseed (B. napus "Athena"), …
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Effect of Control Techniques on the Performance of Semiactive Dampers
… is used to examine the effects that various control methods have on the performance of semiactive dampers in controlling the dynamics of a single suspension (quarter car) model. The level of dynamic control of this model has a direct bearing on the ride comfort and vehicle handling, when the …
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Terra diatomácea, individualidade e balanço de água no caruncho do milho Sitophilus zeamais
A busca de métodos alternativos de controle de pragas tem sido um dos grandes desafios dos últimos tempos. Em grãos armazenados uma das alternativas ao controle químico das pragas é o tratamento com terra diatomácea que é um pó inerte que age nos insetos praga removendo a camada de cera da cutícula …
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Study of seismic control systems on the behaviour of industrial storage racks
… racks and to establish the effectiveness of two alternative control systems to improve the performance of the racks under seismic loads. The control systems studied are new generation passive dampers: (i) a pounding tuned mass damper (PTMD) and (ii) a base isolation system. Full scaled shake …
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