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 115 for “"Set-Point"”.
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Geschlechtsspezifische Körpergewichtsregulation bei Mäusen :Untersuchungen zur Set-point-Theorie der Körpermasse
Entsprechend der sogenannten Set-point-Theorie besitzt jeder Mensch eine individuell festgelegte Körpermasse, die über große Zeiträume konstant gehalten und gegen Abweichungen verteidigt wird. Es wird angenommen, dass der Körper auf noch unbekannte Weise Änderungen in der Körpermasse per se …
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An optimizing control strategy for milling circuit operation
… focus on optimizing control strategies where the set points are adjusted on-line in accordance with an economic criterion. Since plant conditions change, this adjustment needs to be made on a continual basis, but at a frequency lower than that at which inputs are manipulated at the regulatory …
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Design of tracking systems incorporating multivariable plants
… for the design of error-actuated digitalset-point tracking controllers proposed by Porter andco-workers has emerged as a result of the pursuit of effective and practical solutions to the problem of designing digital control systems for unknown, dynamically complex multivariable plants …
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An experimental device for critical surface characterization of YBCO tape superconductors
… manufacturer. The temperature reached the set point in approximately 10 minutes, and was controlled within +/-1 K. Results of heating power required and difference between set point temperature and measured temperature as functions of set point temperature are presented for two temperature …
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Design and evaluation of a prototype high precision temperature telemetry system
… of hypothalmic temperature control about a set point. Experimental investigations have indicated that thermoregulation in newborn infants is different than that of mature adults. Thermoregulatory models require precise repeatable hypothalmic temperature data to which they can be compared and …
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AUTOMATIC TUNING OF PROCESS CONTROLLERS : PRACTICAL APPROACHES
… system performance as well as robustness can be set by users through gain and phase margin specifications. A simple relay auto-tuning procedure is presented to model the over-damped processes approximately by a reduced order process model in terms of a first or second order transfer function plus …
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Reinforcement Learning for the Cybersecurity of Grid-Forming and Grid-Following Inverters
… control and cybersecurity. IBRs receive their set point through the communication link, which may expose them to cyber threats. Previous work has developed various techniques to detect and mitigate cyberattacks on IBRs, developing schemes for new inverters being installed in the grid. This work …
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A pneumatic semi-active control methodology for vibration control of air spring based suspension systems
… "active" damping control force, along with a Set-Point plus PI tracking controller to adjust the valve opening to cause the system to track this desired force during a switching event or control window of opportunity.</p> <p>The second controller uses a Modified Skyhook solution to generate …
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Model Predictive Control for Temperature Dependent Systems
… concentrations in order to determine accurate set point changes to input variables that keep them at their desired targets. In addition, the algorithms in this program match predetermined temperature patterns that indicate if the input variables of the system are correctly balanced for …
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Mechanical Properties of Random Discontinuous Fiber Composites Manufactured from Wetlay Process
… done on the molding parameters that included the set-point mold pressure, set-point mold temperature and cooling methods. The fibers used in the study included glass and carbon fiber. Polypropylene (PP) and Polyethylene Terephthalate (PET) were used as the matrix. Glass/PP and Glass/PET plaques …
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A methodology for thermal analysis and predictive control of building envelope heating systems
… system developed integrates a weather predictor, set-point optimizer, a system identifier and an adaptive Generalized Predictive Control algorithm so as to achieve high building thermal performance. A new weather predictor, simplified through normalization, makes it feasible to quantify the …
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Predictive machine learning model for the future trend of energy consumption in fully electricity homes considering occupancy status of the building
… indoor appliances and HVAC unit are some of the setbacks that reduce the accuracy of the BES tools. Introduction of smart thermostats, made it possible for researchers to study the trend of changes in different measurable variables in the indoor environment like temperature, humidity, the runtime …
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Investigation into the use of a tapered element oscillating microbalance for real-time particulate measurement
… data was made in selecting the temperature set point of 40°C as the most desirable sampling temperature. Sample flow rate was varied from one to four liters per minute (lpm). The 1 lpm set point provided the best TEOM to conventional filtration ratio. The flow rate of 3 lpm was chosen to …
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Model predictive control of a thermoelectric-based heat pump.
… heat pump does hold the battery at the speci ed set point however more optimization was expected from the controller. The controller fell short of expectation due to operational restriction enforced during design meant to simplify the problem. The MPC controller is capable of much better …
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Dead-Time Compensation and Performance Monitoring in Process Control
… with an one-degree-of freedom controller whose set point response is of first order plus dead time. Lambda is the time constant of the set-point response. For these loops a non intrusive performance monitoring methods is described which is thought to be a first indicator of bad performance after …
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Design of Low-Order Controllers using Optimization Techniques
… is optimal both in open and closed loop settings. To improve the high-frequency noise behavior of the feedforward controller, it is proposed that the optimal controller is augmented with a second-order filter. Several aspects on the tuning of this filter are discussed. For systems with …
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Modeling and Control of the Paper Machine Drying Section
… in the paper is controlled by adjusting the set point of the steam pressure controllers. There exist several commercial incentives to focus on the performance of the moisture control. The time to perform a grade change is often limited by the moisture and shorter grade change time is directly …
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A value based approach to leach optimization at Rössing Uranium Limited
… model to determine improved operating set-points for a uraninite/uranophane ore body, for plant-scale implementation, that consistently maximise value delivery. A mineralogical investigation of Rössing leach samples indicated that liberated uraninite remains in the leach residue, …
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Learning based algorithms for temperature control and fouling prediction in heat-exchangers
… outlet temperatures due to changing controller set-points caused by large-scale stochastic fluctuations in the heat exchanger's flow and temperature inputs. We propose a couple of data-driven temperature control solutions for heat-exchangers based on $n$-step advance deep neural networks and a …
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Tools for Autonomous Process Control
… controller design. A simple strategy for fast set point response is presented. It mimics what experienced process operators often do manually to obtain fast set point step responses with no overshoot. The strategy consists of a short sequence of steps in the control signal. Conditions for good …
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