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The condition for dynamic stability
Journal of Biomechanics, 2005The well-known condition for standing stability in static situations is that the vertical projection of the centre of mass (CoM) should be within the base of support (BoS). On the basis of a simple inverted pendulum model, an extension of this rule is proposed for dynamical situations: the position of (the vertical projection of) the CoM plus its ...
Hof, AL, Gazendam, MGJ, Sinke, WE
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On Stability of a Dynamical System
SIAM Journal on Mathematical Analysis, 1995This paper solves an open problem raised by \textit{E. C. Zeeman} [Nonlinearity 1, 115-155 (1988; Zbl 0643.58005)]. It extends his results about the stability of a dynamical system from \(C^ \infty\)-vector fields to \(C^ m\)-vector fields \((1 \leq m \leq \infty)\).
Lin, Charles S. C. +2 more
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2022
Abstract We accord with Mike Long’s rejection of fossilization as a concept able to describe or explain second language acquisition. And we share his bewilderment (Long, 2003, p. 512f.) that since most studies of fossilization make reference to explanatory factors external to language and cognition, “[s]urprisingly, no one seems to have considered the ...
Manfred Pienemann +3 more
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Abstract We accord with Mike Long’s rejection of fossilization as a concept able to describe or explain second language acquisition. And we share his bewilderment (Long, 2003, p. 512f.) that since most studies of fossilization make reference to explanatory factors external to language and cognition, “[s]urprisingly, no one seems to have considered the ...
Manfred Pienemann +3 more
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History of Political Economy, 2009
This article aims to show the mathematical contexts out of which emerged Solow's 1957 article “Technical Change and the Aggregate Production Function.” In particular, it seeks to provide some understanding of its most striking feature, namely, the highly aggregate level on which technical change is discussed and the simple way in which it is ...
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This article aims to show the mathematical contexts out of which emerged Solow's 1957 article “Technical Change and the Aggregate Production Function.” In particular, it seeks to provide some understanding of its most striking feature, namely, the highly aggregate level on which technical change is discussed and the simple way in which it is ...
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2018
A cantilever loaded at its free end is used to introduce the subject of dynamic stability, including non-conservative axial external force such as the case presented at the end of Chap. 8. The essential difference between divergence instability with zero eigenfrequency and flutter instability, i.e., vibration with increasing amplitude is discussed. The
Wiggers, Sine Leergaard, Pedersen, Pauli
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A cantilever loaded at its free end is used to introduce the subject of dynamic stability, including non-conservative axial external force such as the case presented at the end of Chap. 8. The essential difference between divergence instability with zero eigenfrequency and flutter instability, i.e., vibration with increasing amplitude is discussed. The
Wiggers, Sine Leergaard, Pedersen, Pauli
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Dynamic stability of the scapula
Manual Therapy, 1997SUMMARY. The ability to position and control movements of the scapula is essential for optimal upper limb function. The inability to achieve this stable base frequently accompanies the development of shoulder and upper limb pain and pathology. Unlike other joints the bony, capsular and ligamentous constraints are minimal at the scapulothoracic 'joint ...
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Journal of Applied Mechanics, 1983
It is shown how stability theory of dynamic systems, emerging from various beginnings strewn over the realm of mechanics, developed into a unified, comprehensive theory for dynamic systems with a finite number of degrees of freedom. It is then demonstrated, how such theory could be adapted over the last five decades to the specific nature of stability ...
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It is shown how stability theory of dynamic systems, emerging from various beginnings strewn over the realm of mechanics, developed into a unified, comprehensive theory for dynamic systems with a finite number of degrees of freedom. It is then demonstrated, how such theory could be adapted over the last five decades to the specific nature of stability ...
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Abstract Traditional subsectors using preindustrial methods of working and organizing have survived in a number of industries, attracting increasing interest from researchers in a wide range of academic disciplines. Drawing on organizational ecology and its concept of environmental niches, this chapter identifies the economic resource
D. Eleanor Westney +2 more
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D. Eleanor Westney +2 more
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