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Normal forms of stiffness and compliance matrices
IEEE Journal on Robotics and Automation, 1987A generalized spring associates potential energy with each position and orientation of a rigid body. The stiffness of such a spring can be represented by a 6 × 6 symmetric matrix. This matrix can be brought to a normal form by a particular choice of the coordinate frame. Analogous but independent results hold for compliance matrices.
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Frictional contact problems with normal compliance
International Journal of Engineering Science, 1988The quasistatic problem of a linear elastic body in unilateral contact with a rigid support subject to Coulomb's friction law and a power law normal compliance is considered. Two approximations are derived. It is proved that the first, the incremental problem, possesses a solution but it is unique only if it is small and the coefficient of friction is ...
Klarbring, A., Mikelić, A., Shillor, M.
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Pulmonary arterial compliance at rest and exercise in normal humans
American Journal of Physiology-Heart and Circulatory Physiology, 1990We evaluated the feasibility of determining pulmonary arterial compliance (Cp) by a parameter estimation procedure based on the three-element windkessel model. Eight normal patients studied with multisensor micromanometry technology had simultaneous rest and exercise pulmonary artery pressures (PAP) and flows recorded.
D M, Slife +3 more
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Bovine Bladder Compliance Increases with Normal Fetal Development
Journal of Urology, 1994In this study we characterized the elastic properties of the normal bovine bladder throughout fetal life, the newborn period and into adulthood. The elasticity of the bladder was measured with a novel circularly clamped bladder testing system. Pressurization of a circularly clamped bladder tissue sample caused the tissue to deflect upward repetitively ...
L, Baskin +4 more
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Is Lamina Propria Matrix Responsible for Normal Bladder Compliance?
Journal of Urology, 1992Immunohistochemistry using monoclonal and polyclonal antibodies to extracellular matrix proteins is a highly sensitive tool for the characterization of matrix components. For the first time in the normal and noncompliant human bladder we have used antibodies to collagen types I, III and IV, and elastin to provide morphological correlation with ...
D H, Ewalt +6 more
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Dynamic Contact with Normal Compliance Wear and Discontinuous Friction Coefficient
SIAM Journal on Mathematical Analysis, 2002We apply the recent theory of evolution inclusions for set-valued pseudomonotone maps, developed in Kuttler and Shillor [Commun. Contemp. Math., 1 (1999), pp. 87--123] to the problem of dynamic frictional contact with normal compliance and wear. The friction coefficient is assumed to be slip rate dependent, and may be continuous, or discontinuous in ...
Kenneth L. Kuttler, Meir Shillor
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Effect of Hyper- and Hypocapnia on Cerebral Arterial Compliance in Normal Subjects
Journal of Neuroimaging, 2011Changes in partial pressure of carbon dioxide (PaCO2) are associated with a decrease in cerebral blood flow (CBF) during hypocapnia and an increase in CBF during hypercapnia. However, the effects of changes in PaCO2 on cerebral arterial compliance (Ca) are unknown.We assessed the changes in Ca in 20 normal subjects using monitoring of arterial blood ...
Carrera, Emmanuel +6 more
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A quasistatic frictional problem with normal compliance
Nonlinear Analysis: Theory, Methods & Applications, 1991The paper is devoted to the quasistatic loading problem of a linear- elastic body being in frictional contact with a rigid support, adopting the ``normal compliance model'' in the form of a power law. Author proves an existence theorem by selecting a sequence of incremental solutions and showing that his one converges towards a solution of the full ...
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Static respiratory compliance in normal dogs
Journal of Small Animal Practice, 1991ABSTRACTStatic respiratory compliance was measured in a series of normal dogs. The values (mean SEM) for total compliance (n = 42), pulmonary compliance (n = 42) and chest wall compliance (n = 93) were 61 (3–8), 82 (4–7) and 94 (3‐3) ml/ cmH20, respectively. There was a strong positive correlation between bodyweight and chest wall circumference and all
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A Non-clamped Frictional Contact Problem with Normal Compliance
2015In this chapter we study a dynamic frictional contact problem with normal compliance and non-clamped contact conditions, for thermo-viscoelastic materials. The weak formulation of the problem leads to a general system defined by a second order quasivariational evolution inequality coupled with a first order evolution equation.
Chau, Oanh +2 more
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