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The influence of a single-radius-design on the knee stability
Technology and Health Care, 2012Prostheses with single radius (SR) design were supposed to be as good as the physiological kinematic and stability of the knee. This in-vitro biomechanical study compared SR to a multiple radius (MR) design on the one hand and seven left human knee specimens were used. The SR and MR knee prosthesis where implanted with a navigation system.
Christoph Becher +6 more
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Biomechanical Evaluation of Distal Radius Fracture Stability
Journal of Orthopaedic Trauma, 1998(a) To determine the radiographic correlation between an artificially created dorsal comminution (via a wedge osteotomy) and dorsal tilt (clinical instability) and (b) to determine the efficacy of cast immobilization in maintaining reduction of the simulated fracture pattern as a predictor of successful treatment in the clinical setting.Biomechanical ...
Walter A. Eglseder +2 more
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On the Optimum Radius of Robust Stability for Schur Polynomials
Journal of Optimization Theory and Applications, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Youxian Sun, L.X. Gao
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A study of the stability radius for descriptor systems
Proceedings of 35th IEEE Conference on Decision and Control, 2002This paper studies the structural stability of linear time invariant descriptor systems of the form: Ex/spl dot/=Ax where E and A are subject to real or complex perturbations, and various definitions related to structural regularity, structurally impulsive and exponential stability are presented.
Y.Z. Hu, E.J. Davison
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On the relationship between the spectral radius and stability radius for discrete systems
IEEE Transactions on Automatic Control, 1990The relationship between the spectral radius and the stability radius is established via elementary calculation. The result gives a discrete counterpart of the existing result for continuous systems and provides an upper bound for the stability radius. The main result of the calculation is summarized in the form of a theorem. >
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Enlarging the radius of stability and stability regions in Data Envelopment Analysis
European Journal of Operational Research, 2019This paper extends fundamental results on metric sensitivity in Data Envelopment Analysis. Specifically, it shows how to obtain a larger radius of stability for a decision- making unit (DMU) by exploiting knowledge about its variability, and how to enlarge a DMU's region of stability to a nonsymmetric hyperbox.
Luka Neralić, Richard E. Wendell
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An Improved Bound on the Real Stability Radius
1992 American Control Conference, 1992In this paper, we give a new lower bound on the real stability radius of a real stable matrix. We also conjecture that this new lower bound is equal to the exact value of the real stability radius.
Li Qiu, Edward J. Davison
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Robustness Radius for Sector Stability of Polynomials
IFAC Proceedings Volumes, 1996Abstract The problem of robust sector stability for a family of polynomials is considered. Some graphical tests for sector stability of fixed polynomials are provided first. These conditions are extended for l p -affine family of polynomials. For p = 2, ∞ the criterion of robust sector stability can be stated in explicit form.
Ya.Z. Tsypkin, Boris T. Polyak
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Resolvent Matrix and Stability Radius
1991Consider the homogeneous equation of a dynamic system \({\rm{\dot x(}}t) = {\rm{Ax(}}t){\rm{ }} \in {{\rm{R}}^n}\) where A represents the nominal system which is assumed stable. Let the system be linearly perturbed by an additive error matrix ΔA $${\rm{\dot x(}}t) = ({\rm{A + }}\Delta {\rm{A)x(}}t)$$ (23.1) where ΔA is spectral norm bounded ...
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Stabilized bubbles in the body: pressure-radius relationships and the limits to stabilization
Journal of Applied Physiology, 1997Van Liew, Hugh D., and Soumya Raychaudhuri. Stabilized bubbles in the body: pressure-radius relationships and the limits to stabilization. J. Appl. Physiol.82(6): 2045–2053, 1997.—We previously outlined the fundamental principles that govern behavior of stabilized bubbles, such as the microbubbles being put forward as ultrasound contrast agents.
Hugh D. Van Liew, Soumya Raychaudhuri
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