Results 321 to 330 of about 1,119,901 (376)
Some of the next articles are maybe not open access.

Brain Tissue Elasticity and CSF Elastance

Neurological Research, 1989
In the analysis of the pressure-volume relationship of the intracranial system, the concept of brain elastance, sometimes called tissue elastance or CSF elastance, is often used. It is generally designated as Ecsf and is calculated as the slope of the pressure-volume curve of the system.
E K, Walsh, A, Schettini
openaire   +2 more sources

Elastic Knots

Physical Review Letters, 2007
We study the mechanical response of elastic rods bent into open knots, focusing on the case of trefoil and cinquefoil topologies. The limit of a weak applied tensile force is studied both analytically and experimentally: the Kirchhoff equations with self-contact are solved by means of matched asymptotic expansions; predictions on both the geometrical ...
B, Audoly, N, Clauvelin, S, Neukirch
openaire   +2 more sources

Elasticity Optimism [PDF]

open access: possibleSSRN Electronic Journal, 2008
On average, estimates of trade elasticities are smaller in aggregate data than at sector level. This is an artifact of aggregation. Estimations performed on aggregate data constrain sector elasticities to homogeneity, which creates a heterogeneity bias. The paper shows such a bias exists in two prominent approaches used to estimate elasticities, which
Imbs, Jean, Mejean, Isabelle
openaire   +7 more sources

Elastic Transactions

Journal of Parallel and Distributed Computing, 2009
This paper presents elastic transactions, an appealing alternative to traditional transactions, in particular to implement search structures in shared memory multicore architectures. Upon conflict detection, an elastic transaction might drop what it did so far within a separate transaction that immediately commits, and resume its computation within a ...
Felber P., Gramoli V., Guerraoui R.
openaire   +1 more source

The elasticity of elasticity

Zeitschrift für angewandte Mathematik und Physik, 2006
In this note we assert that the usual interpretation of what one means by “elasticity” is much too insular and illustrates our thesis by introducing implicit constitutive theories that can describe the non-dissipative response of solids. There is another important aspect to the introduction of such an implicit approach to the non-dissipative response ...
openaire   +1 more source

Elasticities. Elasticities of substitution

1999
• When f is a utility function, and x and y are goods, R yx is called the marginal rate of substitution (abbreviated MRS).
Knut Sydsæter, Arne Strøm, Peter Berck
openaire   +1 more source

Elastic Waves in Inhomogeneous Elastic Media

Journal of Applied Mechanics, 1972
The WKB solution is derived together with the condition for its validity for elastic waves propagating into an inhomogeneous elastic medium. Large frequency expansion solution is also derived. It is found that the WKB solution agrees with that derived for large frequencies when the frequency approaches infinity.
Nayfeh, Adnan H.   +1 more
openaire   +2 more sources

Nonlinear elasticity in biological gels

Nature, 2004
The mechanical properties of soft biological tissues are essential to their physiological function and cannot easily be duplicated by synthetic materials.
C. Storm   +4 more
semanticscholar   +1 more source

Elastic properties of single elastic fibers

Journal of Applied Physiology, 1962
The elastic properties of elastic tissue were studied in a situation which minimized the effects of extraneous connective tissue and of the position of fibers in the elastic network. Single elastic fibers were dissected free from the ligamentum nuchae of the ox and were stretched under conditions of constant temperature and salinity. The strain was an
R W, CARTON, J, DAINAUSKAS, J W, CLARK
openaire   +2 more sources

Elastic excitable medium

Physical Review E, 1994
A type of excitable medium---an elastic excitable medium---has been created by incorporating the Belousov-Zhabotinsky reaction into a polyacrylamide-silica gel. It permits one to address the problem of how the cardiac muscle contractions affect the dynamics of rotating spiral waves.
A. P. Munuzuri   +5 more
openaire   +3 more sources

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