Zobrazeno 1 - 10
of 240
pro vyhledávání: '"Van Hemmen, J Leo"'
Autor:
Edskes, Bernhardt H., Heider, David T., van Leeuwen, Johan L., Seeber, Bernhard U., van Hemmen, J. Leo
According to the classical Helmholtz picture, an organ pipe while generating its eigentone has two anti-nodes at the two open ends of a cylinder, the anti-nodes being taken as boundary condition for the corresponding sound. Since 1860 it is also know
Externí odkaz:
http://arxiv.org/abs/2203.15042
Autor:
Heider, David T., van Hemmen, J. Leo
Geometric perturbation theory is universal. A typical example is provided by the 3D wave equation, widely used in acoustics. We face vibrating eardrums as a binaural auditory input stemming from an external sound source. In the setup of internally co
Externí odkaz:
http://arxiv.org/abs/1912.11008
Autor:
Heider, David T., van Hemmen, J. Leo
A systematic study of small, time-dependent, perturbations to geometric wave-equation domains is hardly existent. Acoustic enclosures are typical examples featuring locally reacting surfaces that respond to a pressure gradient or a pressure differenc
Externí odkaz:
http://arxiv.org/abs/1801.00360
Autor:
Heider, David T., van Hemmen, J. Leo
Publikováno v:
In Physica D: Nonlinear Phenomena April 2020 405
We present an exact solution for the time-dependent Stokes problem of an infinite cylinder of radius r=a in a fluid with harmonic boundary conditions at infinity. This is a 3-dimensional problem but, because of translational invariance along the axis
Externí odkaz:
http://arxiv.org/abs/0804.0023
Autor:
van Hemmen, J. Leo, Peterson, Mark A.
We generalize the F\"{o}ppl-von K\'arm\'an equations to an initially precurved sheet and present the underlying derivation. A geometrically computed moment of strain replaces the notion of bending moment and results in a geometric formulation of the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0503158
Publikováno v:
Visual Neuroscience 17 (2000), pp. 107-118
The thalamus is the major gate to the cortex and its control over cortical responses is well established. Cortical feedback to the thalamus is, in turn, the anatomically dominant input to relay cells, yet its influence on thalamic processing has been
Externí odkaz:
http://arxiv.org/abs/physics/0208050
Publikováno v:
Neural Computation 13 (2001), pp. 327-355
The thalamus is the major gate to the cortex and its contribution to cortical receptive field properties is well established. Cortical feedback to the thalamus is, in turn, the anatomically dominant input to relay cells, yet its influence on thalamic
Externí odkaz:
http://arxiv.org/abs/physics/0208040