Results 231 to 240 of about 139,589 (279)
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Neuronal ‘On’ and ‘Off’ signals control microglia
Trends in Neurosciences, 2007Recent findings indicate that neurons are not merely passive targets of microglia but rather control microglial activity. The variety of different signals that neurons use to control microglia can be divided into two categories: 'Off' signals constitutively keep microglia in their resting state and antagonize proinflammatory activity.
Knut, Biber +3 more
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Trade-Offs in Robust Controller Design
1992 American Control Conference, 1992Structured singular value paradigm is used to present a method that helps the control designer assess the relative importance of information regarding the feedback system. Such information consists of process knowledge through the model, control system complexity quantified by the controller order and performance requirements as set forth by the ...
JOSÉ L. FIGUEROA +3 more
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Industrial Vehicle Technology International, 2018
THERE ARE SEVERAL FACTORS TO TAKE INTO ACCOUNT WHEN CHOOSING A CONTROLLER FOR INDUSTRIAL VEHICLES
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THERE ARE SEVERAL FACTORS TO TAKE INTO ACCOUNT WHEN CHOOSING A CONTROLLER FOR INDUSTRIAL VEHICLES
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Sealed-Off Ignitrons for Welding Control
Transactions of the American Institute of Electrical Engineers, 1937Accurate control of high currents for resistance welding may be obtained by igniter-type mercury-cathode tubes capable of conducting 7,000 amperes in impulses of from less than 0.01 second to several seconds duration. This paper describes design principles and manufacturing technique for tubes of the sealed-off type.
David Packard, J. H. Hutchings
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Hybrid control in automotive applications: the cut-off control
Automatica, 1999A novel approach to the control of an automotive engines in the cut-off region is presented. First, a hybrid model which describes the torque generation mechanism and the powertrain dynamics is developed. Then, the cut-off control problem is formulated as a hybrid optimal control problem, whose solution is obtained by relaxing it to the continuous ...
Andrea Balluchi +4 more
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Control of the heel-off to toe-off motion of a dynamic biped gait
IEEE Transactions on Systems, Man, and Cybernetics, 1992A mechanism for the control of the heel-off to toe-off motion of a dynamic biped gait is presented. It is argued that the reaction force between the ground and the biped foot is an important factor in a satisfactory implementation of dynamic gait. This force must be properly controlled while the foot is in the heel-off to toe-off phase.
Ralph E. Goddard +2 more
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Successful Application Of Pump-Off Controllers
SPE Annual Fall Technical Conference and Exhibition, 1977Abstract One of the major sources of problems associated with rod pumping is pump-off and the associated fluid pound. After several pumping is pump-off and the associated fluid pound. After several years or development, techniques and systems are available to reliably detect and control pump-off.
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Temperature control - 1: On-off control
1988On-off closed-loop temperature control will often yield results that are quite adequate for industrial applications. Using the methods explained, an approximate process model may be derived from simple tests. The model may then be used to predict approximate values for the period and amplitude of the oscillation of temperature under closed-loop control,
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New Electronics
AI models are filling in the blanks in advanced industrial control and robots. But people working on these systems are also wary of letting the AI take full control.
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AI models are filling in the blanks in advanced industrial control and robots. But people working on these systems are also wary of letting the AI take full control.
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Simulation of ON/OFF controlled systems
Civil Engineering Systems, 1985Abstract A method for simulating systems that have components controlled in an ON/OFF manner is presented. The method is particularly suited to systems with an identifiable component structure such as those found in network problems. The primary feature of the method is that control strategies are modelled separately from the dynamics of the physical ...
Miriam Berlin +2 more
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