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 22 for “"controlled variables"”.
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Study of Drift Limits for High-Strength Concrete Columns
The effect of the controlled variables on the behavior of the specimens is discussed and a simple theoretical approach to calculate the critical coordinates for the load-displacement response is presented.
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Symbolic automation and numerical synthesis for robot kinematics
… differential relationships between the command variables in position and orientation of the end effector and the joint-controlled variables are studied. Finally, the inverse kinematics which determines the joint variables for a specified Cartesian position and orientation of the end effector is …
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The Influence of Social Integration, Religious Integration, and Religious-Social Regulation on Suicidal Behaviors Among Seventh-day Adventist Youth
… results indicated that, after the effects of the controlled variables were accounted for, the social-religious integration and regulation model, although statistically significant (<em>p</em> < .01), did little proportionally (.01) to improve the goodness of fit of the model in predicting …
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Design of a microcomputer-based microporous membrane process controller
… directs the entire process and monitors the controlled variables. A complete description of the interface and temperature control circuitry is given. The software used to direct the process is also discussed and presented.
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Social capital and climate change adaptation strategies : the case of smallholder farmers in the Central region of Ghana
… strong ties and four individual social capital variables. Twenty-year maize and rainfall data were analysed using trend analysis. The influence of individual social capital and other controlled variables were analysed using Multinomial logit model. Using 225 sampled households the results of the …
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Dynamic Model and Adaptive Control of a Transcritical Organic Rankine Cycle
… strategy by pairing the controlled variables (CVs) to the manipulated variables (MVs) using Relative Gain Ar- ray (RGA) analysis of the system. The CMAC improves performance and robustness compared to a traditional PI control.
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Structure-property relationships of multiphase copolymers
… many real multiblock systems the effect of such variables as; chemical composition distribution, molecular weight distribution and block architecture, among others, are not very well understood. The key to gaining a better understanding of these systems lies in the use of synthetic and process …
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Temperature modeling and control of the sulfuric acid plant in an industrial smelter
… model provides a relation between the process variables and the temperature of the outlet streams of the heat exchangers. Unknown variables are estimated using industrial operating data. The steady-state model is used to investigate the effect of process variables on the controlled variables. …
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Gain Conditioning for Linear Model Predictive Control
… calculate adjustments in multiple manipulated variables (MVs) to ensure that operating constraints are obeyed and that controlled variables (CVs) are maintained near their setpoints. Industrial practitioners who develop MPC applications are interested in preventing erratic behavior of MPCs, …
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STATISTICAL METHODS FOR ANALYSIS OF CANCER CHEMOPREVENTION EXPERIMENTS
… procedure subject to changes in the experimenter controlled variables in order to design more accurate and efficient experiments and better utilize resources.</p>
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An empirical investigation of the relationship between purchasing professionals' perceptions of role stress and selected antecedent and consequent variables
… Ascertaining the effects that 'marketer controlled' variables have on the role conflict and role ambiguity of the public purchasing professional can thus contribute to marketing management and to marketing thought. Two of these variables are the perceived Customer Orientation of the …
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Predictors of outcome for the young offspring of depressed mothers: Maternal psychopathology, maternal behavior, and the social/familial context
… and in remission). Maternal psychopathology variables were assessed using structured diagnostic interviews and self-report measures. Measures of maternal behavior and child outcomes were derived from home observations and interviews with the child's mother. Comparisons of the currently …
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Non-linear model-based predictive control of a low-temperature gasoline combustion engine
… train and the direct injection are available. Controlled variables are IMEP and CA50, while the maximum pressure rise dpmax shall be constrained. Alongside the V-model, different linear and non-linear controllers are developed. The non-linear modeling of the state space as neural network allows …
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Public debt and economic growth: empirical evidence from South Africa
… approach to test the causal relationship between variables. Analysis of variance decomposition and impulse response functions are used to illustrate the proportions of movements of variables due to its own shock relative to other variables by shocking one standard deviation. The study results …
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Modeling, Simulation, and Optimization of large-Scale Commercial Desalination Plants
… techniques to identify the major independent variables to optimize the process performance. In contrast to several recent studies, this work utilizes actual operating data (not simulated) from a large-scale commercial MSF desalination plant (48 million gallonsper day capacity, MGPD) and RO …
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Plantwide Control System Design for IGCC Power Plants with CO2 Capture
… top-down analysis is used to generate a list of controlled, manipulated, and disturbance variables considering a scalar operational objective and other process constraints. In this section, innovative methods devised for primary and secondary controlled variable selection will be …
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Resource Allocation in Seventh-day Adventist Elementary Schools: an Educational Production Function Study
… was to evaluate the effects of selected school controlled variables on student achievement in Seventh-day Adventist elementary schools and to develop guidelines for the resource allocation function relative to these selected variables.</p> <p>Method. Thirty schools on both grades three and six …
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Electrochemical Synthesis of Single Crystal Metal Nanowires
… recesses with both diameter and length well controlled by tuning the size and thickness of the templates.</p> <p> In this work, the morphology, growth rate and texture of copper nanowires prepared with templates were investigated by the controlled parameters in various experiments. Cu …
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Identification of Nurse-Controlled Predictors of Pain in Patients Undergoing a Total Hip or Total Knee Arthroplasty
… the sample and examine relationships between variables. Binomial logistic regression was utilized to identify factors that increased the likelihood of controlled pain during hospitalization for the study sample.</p> <p><strong>Results: </strong>Approximately two-thirds (65.3%) of patients had …
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Mathematical modelling and control of agitated extraction columns
… reduced-order models that relate the input variables (agitator speed, solvent feed flowrate and concentration, feed concentration and flowrate) to the output variables (raffinate concentration and extract concentration) using the asymptotic method of system identification. The reduced-order …
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