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.
Results
Showing 1 to 20 of 514 for “"Control methods"”.
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Benchmarking Virtual Reality Control Methods
… be used to evaluate and compare virtual reality control methods using dexterity as a measurement. The results were recorded by asking a participant to perform a variation of a 9-hole peg test in both the real world and in virtual reality for each control method. The time taken to perform the task …
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OpenTag : privacy control methods in RFID
… everyday items. The focus of this thesis is on methods to improve privacy control in item level RFID tags. Several methods for the prevention of unwanted identification and tracking of tagged items are explored in the context of item level tags, which are greatly limited in size, cost, and …
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Nonlinear control methods for automotive powertrain systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
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Modern control methods for chemical process systems
… which has driven the demand for improved control techniques and methodologies. Improved control directly leads to smaller usage of resources, increased productivity, improved safety, and reduced pollution. Model predictive control (MPC) is the most advanced control technology widely …
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High performance induction machine control: Methods, limits and solutions
… various high performance induction machine control methods and provides methods for improved performance. Parameter sensitivity analyses on the discussed control methods are given. Practitioners have reported performance degradation during high speed DTC operation, including excessive torque …
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Nonlinear and geometric control methods in deep learning theory
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-12-01
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Adaptive Control Methods for Non-Linear Self-Excited Systems
… Because there is no external disturbance, control of these self-excited systems requires that the open loop system dynamics are altered so that any unstable open loop poles are stabilized in the closed loop. This work examines a variety of adaptive control approaches for controlling a …
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Grid current control methods for MV wind energy conversion systems
… generation to the power grid. Grid converter control strategies considering normal and abnormal operation have been one of most concerned points for renewable energy integration. Based on these issues, the Ph.D. project will focus on the grid converter control algorithms investigation. In …
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Efficient Identification and Control Methods For Nonlinear Systems Under Uncertainty
… benefit from advanced modeling, estimation, and control methods. Traditional linear methods can be applied to these systems, but this generally results in sub-optimal control. This dissertation presents new estimation, modeling, and control methods that address process nonlinearities and …
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Improving on quality control methods used in commercial MEA manufacturing
… cell commercialisation is the lack of standard methods for quality control in membrane electrode assembly (MEA) manufacturing, specifically the lack of in-line, non-destructive and roll-to-roll quality control methods. There are currently 5 typical methods for assessing the quality of an MEA, …
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Design and control methods for high-accuracy variable reluctance actuators
This thesis presents the design and control techniques of a variable reluctance actuator for driving a reticle motion stage in photolithography scanners. The primary thesis contributions include the design and experimental demonstration of a magnetic flux controller that uses a sense coil …
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Distributed adaptive control methods for uncertain multiagent systems with coupled dynamics
… these systems is designing distributed adaptive controllers with user-assigned positions in this case and defining the convergence rate of the reference model for each agent using only local (i.e., agent-based) information. Discrete-time architectures have an advantage over their continuous …
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Dynamic risk adjustment of prediction models using statistical process control methods
… address this problem using statistical process control (SPC) techniques in a novel way. Although widely used in the manufacturing industry to maintain high quality in critical processes, SPC's value to healthcare has begun only recently to gain attention from decision makers. It has been used to …
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Active control methods for improving the insertion loss of acoustical enclosures
A common method of noise control is the implementation of passive transmission loss enclosures. An acoustical enclosure surrounds a noise source for the purpose of interrupting the noise transmission path. The effectiveness of these enclosures is, however, limited by various drawbacks. These …
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Experimental and theoretical investigation of optimal control methods with model reduction
In this study three types of optimized controllers are developed and tested on two laboratory structures. The two structures represented a progression in complexity and challenge to the controllers. The first structure was simple enough to be accurately modeled so the analytical frequencies and …
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New modelling and control methods with application to combined cycle power plants
… of combine cycle power plants. A new MIMO PID controller tuning method and a novel predictive PID controller design method for MIMO systems are also described in the thesis. The emphasis of this work is on simulation; identification and controller design methods. The thesis begins with an …
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A Comparison of Control Methods for Spacecraft Maneuvering With Run Time Assurance
… critical factor in mission completion within the controls field. Controllers designed using data-based approaches like artificial intelligence must uphold the same levels of safety expected from modern controllers, such as Linear Quadratic Regulators. This is accomplished with the application of …
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A Comparison of Control Methods for Spacecraft Maneuvering With Run Time Assurance
… critical factor in mission completion within the controls field. Controllers designed using data-based approaches like artificial intelligence must uphold the same levels of safety expected from modern controllers, such as Linear Quadratic Regulators. This is accomplished with the application of …
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Perception and Control Methods for Improving the Autonomy of Off-Road Robots
… traverse uneven terrain. As a result, the control of its robotic manipulator is complicated by the dynamic coupling with the suspension. Based on Lyapunov’s stability theory, this thesis contributes RaPID, a tuning procedure for the PID control of suspended manipulators that guarantees the …
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