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Showing 1 to 20 of 143 for “"process monitoring"”.
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Process Monitoring of Large Scale Systems
Modern chemical processes are highly complex and operate with a large number of variables under closed loop control. Plant engineers and operators are unable to effectively detect and diagnose faults for these large scale systems using traditional process monitoring methods. However, by developing …
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Process monitoring for plastics injection molding
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993 and Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1993.
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Nonlinear dynamic process monitoring using kernel methods
The application of kernel methods in process monitoring is well established. How- ever, there is need to extend existing techniques using novel implementation strate- gies in order to improve process monitoring performance. For example, process monitoring using kernel principal component analysis …
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Fault diagnosis in multivariate statistical process monitoring
The application of multivariate statistical process monitoring (MSPM) methods has gained considerable momentum over the last couple of decades, especially in the processing industry for achieving higher throughput at sustainable rates, reducing safety related events and minimizing potential …
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Diagnostic process monitoring with temporally uncertain models
… thesis develops a real-time trend detection and monitoring system based on previous work by Haimowitz, Le, and DeSouza [3, 5, 2]. The monitor they designed, TrenDx, used trend templates in which the temporal points where data patterns change are variable with respect to the actual process data. …
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Material process monitoring with optical fiber sensors
… be embedded in polymeric composite laminates for monitoring the degree of cure during its fabrication, as well as internal composite strains occurring post-cure.3 In short, this dual-purpose sensor combines the characteristics of a Fresnel reflectometer with those of the extrinsic Fabry-Perot …
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Optical Spectroscopy for Process Monitoring of 238Pu Production
… per year. Fabrication of 238Pu involves processing of highly radioactive material that poses both proliferation, safety, and cost concerns. To ensure proper nuclear materials accountancy of 238Pu in its production, in situ species monitoring techniques must be developed. The efficacy of …
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Contextual and Ethical Issues with Predictive Process Monitoring
… contextual and ethical issues in the predictive process monitoring framework and several related issues. Regarding contextual issues, even though the importance of case, process, social and external contextual factors in the predictive business process monitoring framework has been acknowledged, …
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Reduction of process monitoring in semiconductor chip manufacturing
… chip manufacturing. Intel uses extensive monitoring (inspections) in the manufacturing process. While the inspections help safeguard process stability and boost manufacturing yield, they also account for a substantial fraction of the company's variable manufacturing costs. Intel is under …
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Sensor-based Online Process Monitoring in Advanced Manufacturing
… detection, and avoidance of destructive post-process testing. Therefore, it is desirable to employ sensors for in-process monitoring, allowing for real-time quality assurance. Chapter 3 describes the application of sensor based monitoring to additive manufacturing, in which sensors are …
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A CNC machine guiderail wear in-process monitoring system
… investigates and establishes a system for monitoring the guiderail wear on medium size CNC machines. The system possesses the function of measuring the wear state on guiderails in an in-process way, which is more functional and efficient than the traditional method. In this research, two …
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Real time process monitoring of solder paste stencil printing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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The Design of GLR Control Charts for Process Monitoring
… are investigated for two types of statistical process monitoring (SPC) problems. The first part of this dissertation considers the problem of monitoring a normally distributed process variable when a special cause may produce a time varying linear drift in the mean. The design and application …
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GLR Control Charts for Process Monitoring with Sequential Sampling
… sampling scheme (SS GLR charts). Phase II monitoring is considered and the goal is to quickly detect a wide range of changes in the univariate normal process mean parameter and/or the variance parameter. The performance of the SS GLR charts is evaluated and design guidelines for SS GLR …
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Mathematical modelling and in-process monitoring techniques for cutting tools.
… interaction and for accurate on-line monitoring of tool-state. These are essential requirements for the achievement of unmanned and computerized machining processes. Techniques are used to design the experiments which substantially reduce the number of tests while providing all the …
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Process Monitoring with Multivariate Data:Varying Sample Sizes and Linear Profiles
Multivariate control charts are used to monitor a process when more than one quality variable associated with the process is being observed. The multivariate exponentially weighted moving average (MEWMA) control chart is one of the most commonly recommended tools for multivariate process …
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PHARMACEUTICAL INSTRUMENTATION DEVELOPMENT FOR IN-PROCESS MONITORING OF FREEZE-DRYING CYCLES
… during the primary drying stage is a critical process parameter in the freeze drying of biopharmaceutical drug products and for a successful optimum drying process, ice interface temperature should stay just below the critical temperature of the glass transition – little below collapse …
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Effective and efficient online process monitoring and control of ultrasonic metal welding
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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