Results 271 to 280 of about 4,898,512 (318)
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Control of polymerization processes
IFAC Proceedings Volumes, 1980Abstract This paper presents a survey of the control of commercial continuous and batch polymerization plants, by conventional means as well as with the help of processcomputers, PLC’s and microcomputers.
K. Hoogendoorn, R. Shaw
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The Control of Fermentation Processes
IFAC Proceedings Volumes, 1985Abstract A survey of the control of fermentation processes operated in fed-batch mode is Presented. Truely optimal conditions can only be found by minimizing for maximizing) a cost criterion subject to the constraints imposed by a mathematical model of the process. This approach leads to the design of a tracking controller, or servomechanism as it is
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On the Control of a Pyrolysis Process
2007 International Conference on Clean Electrical Power, 2007The control of a pyrolysis process producing bio-oil, gas and char starting from vegetable biomasses is considered. The highly nonlinear model and the configuration of input variables is faced by maximizing the economic profit. The control procedures are designed so that the burden of the farm management is minimized. The cost reduction is essential in
BALESTRINO, ALDO +2 more
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Science, 1982
Advances in electronics and computers have enabled industries to attain better control of their processes with resulting increases in quality, productivity, profitability, and compliance with government regulations. With a hierarchy of computers, distributed data acquisition, and information processing and control, it is possible to achieve overall ...
D L, Morrison, R H, Snow, J P, Lamoureux
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Advances in electronics and computers have enabled industries to attain better control of their processes with resulting increases in quality, productivity, profitability, and compliance with government regulations. With a hierarchy of computers, distributed data acquisition, and information processing and control, it is possible to achieve overall ...
D L, Morrison, R H, Snow, J P, Lamoureux
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Process control and communication
Proceedings of the second symposium on Operating systems principles - SOSP '69, 1969The paper contains a description of the structure of processes and the interprocess communication facility implemented within a general purpose operating system. Processes within the system operate asynchronously. The communication facility allows a process to signal another process, to send information to it, to cause it to be suspended or to cause it
Arthur J. Bernstein +2 more
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Importance of Process and Control in Statistical Process Control
1992We consider a process, or a system, working in time that can be in a number of states. Some states are more desirable than others. The process has to be inspected to detect undesirable states and to avoid the penalties of operating in these undesirable states.
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Proceedings of the 41st SICE Annual Conference. SICE 2002., 2003
Concerning the feedback control of a process, making the manipulated variable (the output) equilibrates to the load change (the input) is the optimum method in order to get the best process performance, as the controlled variable should be zero.
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Concerning the feedback control of a process, making the manipulated variable (the output) equilibrates to the load change (the input) is the optimum method in order to get the best process performance, as the controlled variable should be zero.
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1993
The uniform shape of a biscuit, the performance of a fuel oil in a burner and the ability to spin fibres from a polymer resin all rely on the ability to control rheological properties during processing. Moreover, rheological properties are useful as indicators of primary material characteristics; for example, the concentration of solvent in a paint ...
T. O. Broadhead, J. M. Dealy
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The uniform shape of a biscuit, the performance of a fuel oil in a burner and the ability to spin fibres from a polymer resin all rely on the ability to control rheological properties during processing. Moreover, rheological properties are useful as indicators of primary material characteristics; for example, the concentration of solvent in a paint ...
T. O. Broadhead, J. M. Dealy
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Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1987
Abstract Improvement in bioprocess control will require development of monitors for a wide range of cell-growth and downstream-process parameters. These requirements are examined in terms of the development and application of biosensor devices and physical measurement techniques.
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Abstract Improvement in bioprocess control will require development of monitors for a wide range of cell-growth and downstream-process parameters. These requirements are examined in terms of the development and application of biosensor devices and physical measurement techniques.
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Journal of Optimization Theory and Applications, 1974
The concept of normality for a control process represented by an ordinary differential equation dx/dt – A(t)|x = B(t)u(t) was introduced by J. P. LaSalle to ensure uniqueness of time optimal controls. It presents a theorem that states that if L is normal for C and LC is closed then L is also essentially normal for C.
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The concept of normality for a control process represented by an ordinary differential equation dx/dt – A(t)|x = B(t)u(t) was introduced by J. P. LaSalle to ensure uniqueness of time optimal controls. It presents a theorem that states that if L is normal for C and LC is closed then L is also essentially normal for C.
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