منابع مشابه
Stability of Bilateral Teleoperation Systems: Effect of Sampled-data Control and Non-passivity or Strict-Passivity of Terminations
A bilateral teleoperation system comprises a human operator, a teleoperator, and an environment. The teleoperator consists of a master robot, a slave robot, their controllers, and a communication channel between the master and the slave. Since the exact models of the teleoperator’s terminations, namely the human operator and the environment, are typically unknown and/or time-varying, passivity ...
متن کاملTheorizing passivity
process essentially is conservative and, in some discipline, produces a regression to some mean—all articles in a particular journal resemble each other. As a result, there is little innovation in the forms and contents of thinking and theorizing. Despite being in special institutional positions (variously theorized as gatekeepers or obligatory points of passage), few editors appear to allow mo...
متن کاملUsing Iron-Chelating Agents in Critically Ill Patients with Iron Overload. Fact or Fiction?
Recently, some evidence has shown that the failure of iron homeostasis may occur in critically ill patients and can lead to iron overload. Elevated ferritin levels as a body iron burden index in critically ill patients may be associated with depressed level of consciousness and greater mortality. However, the necessity of using iron-chelating agents in clinical situation is still unknown for th...
متن کاملOn delay-dependent passivity
Sufficient conditions for passivity (positive realness) are obtained for continuous-time, linear, retarded, and neutral-type systems. A delay-dependent solution is given in terms of linear matrix inequalities (LMIs) by using a descriptor model transformation of the system and by applying Park’s inequality for bounding cross terms. A memoryless state-feedback solution is derived. Numerical examp...
متن کاملPassivity and Independence
Most programming languages have certain phrases (like expressions) which only read information from the state and certain others (like commands) which write information to the state. These are called passive and active phrases respectively. Semantic models which make these distinctions have been hard to find. For instance, most semantic models have expression denotations that (temporarily) chan...
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ژورنال
عنوان ژورنال: Nature
سال: 1932
ISSN: 0028-0836,1476-4687
DOI: 10.1038/129210a0