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Passivity analysis and passivation of feedback systems using passivity indices
2014 American Control Conference, 2014Passivity indices are used to measure the excess or shortage of passivity. While most of the work in the literature focuses on stability conditions for interconnected systems using passivity indices, here we focus on passivity and passivation of the feedback interconnection of two input feed-forward output-feedback (IF-OF) passive systems.
Feng Zhu 0021 +2 more
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Passivity control of a passive haptic device
2004 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) (IEEE Cat. No.04CH37566), 2005In this paper, we propose an energy-based stability control of a passive haptic device equipped with passive actuators such as an electric brake. Unstable behavior is observed even in the passive haptic system due to time delay mainly arising from the slow update rate of the virtual environment.
Beom-Seop Kim +4 more
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Are “Passive” Extension Exercises Really Passive?
Journal of Orthopaedic & Sports Physical Therapy, 1994When rehabilitating patients with back dysfunction, extension exercises that are presumably "passive" for the erector spinae muscles are frequently used. The purpose of this study was to record electromyographic (EMG) activity from back extensor muscles to determine if these muscles are truly inactive during these maneuvers.
I, Fiebert, C D, Keller
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IFAC Proceedings Volumes, 2013
Abstract Motivated by developments on differential Lyapunov functions for contraction analysis in Forni, Sepulchre (2012) we propose a definition of differential passivity, based on the geometric framework of the prolongation of a nonlinear system in Crouch, van der Schaft (1987). We explore the ramifications of this definition and its potential uses.
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Abstract Motivated by developments on differential Lyapunov functions for contraction analysis in Forni, Sepulchre (2012) we propose a definition of differential passivity, based on the geometric framework of the prolongation of a nonlinear system in Crouch, van der Schaft (1987). We explore the ramifications of this definition and its potential uses.
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Passivity and Breakdown of Passivity
1982Some metals and alloys form a film with special properties when interacting with a corrosive environment. The formation of this film results in a metal surface becoming resistant (passive) to corrosive attack. This phenomenon of passivity underlies the successful use of non-noble metals in all the industries that support every modern society; the ...
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The passival and the progressive passive
2004Grammaticalisation of the progressive aspect and passive voice in English began in the Old English period; yet, the spread of the new patterns to all syntactic environments took several centuries. A fairly recent phenomenon is the co-occurrence of the progressive aspect and the be -passive ...
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JAMA: The Journal of the American Medical Association, 1967
"During the years 1948 through 1953, some 120 children were seen in private practice. Of this number, 16 were adopted." A recent communication began with these sentences. What do they mean? Perhaps the writer personally adopted 16 of the 120 children he examined between 1948 and 1953. Of course, other interpretations exist.
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"During the years 1948 through 1953, some 120 children were seen in private practice. Of this number, 16 were adopted." A recent communication began with these sentences. What do they mean? Perhaps the writer personally adopted 16 of the 120 children he examined between 1948 and 1953. Of course, other interpretations exist.
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Journal of Political Economy, 1970
There are two ways in which the quantity of money may be included in a general equilibrium system: as a datum, whose value is fixed exogenously, or as an unknown, whose value is determined by the equilibrium system itself. Let them be called active money and passive money, respectively. Current monetary theory uses the first approach.
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There are two ways in which the quantity of money may be included in a general equilibrium system: as a datum, whose value is fixed exogenously, or as an unknown, whose value is determined by the equilibrium system itself. Let them be called active money and passive money, respectively. Current monetary theory uses the first approach.
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Is Kashmiri passive really a passive?
2014The present paper explores passives in Kashmiri, a Northwestern Dardic language of the Indo-Aryan family. Though Kashmiri has some special features like V-2 phenomenon, pronominal clitics etc. it has an analytic passive construction like its Indo-Aryan counterparts.
Richa Srishti, Shahid Bhat
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