It has been widely believed since Helmholtz that tangent discontinuities in image contours, such as T-junctions or L-junctions, will occur when one object occludes another. Here we describe a class of occlusion relationships where changes in 'border ownership' and amodal completion take place in the absence of tangent discontinuities in the image. We propose that even subtle curvature discontin...

We consider a family of stationary Navier-Stokes ows parameterized by the Reynolds number. When the Reynolds number tends to in nity, what asymptotic behaviors are observed? This is the problem which we would like to address in the present paper. The most renowned phenomenon is the appearance of the boundary layer. This is wellknown. However, what happens in the ow region away from the boundary...

The binding neuron (BN) output firing statistics is considered. The neuron is driven externally by the Poisson stream of intensity l . The influence of the feedback, which conveys every output impulse to the input with time delay ∆ ≥ 0 , on the statistics of BN’s output spikes is considered. The resulting output stream is not Poissonian, and we look for its interspike intervals (ISI) distributi...

The recent results of the accurate calorimetric measurements phase equilibria in ternary mixtures methane, propane, and nonane have been presented. heat capacity, internal energy, pressure, temperature derivative pressure at constant volume were measured range 160–340 K, up to 30 MPa. transitions localized by finite discontinuities derivatives thermodynamic potentials. diagrams for plotted base...

Numerical methods such as boundary element and finite element methods are widely used for the stress analysis in solid mechanics. This study presents boundary element method based on the displacement discontinuity formulation to solve general problems of interaction between hydraulic fracturing and discontinuities. The crack tip element and a higher order boundary displacement collocation techn...

Studying the behavior of some slow phenomena, such as crustal or continental deformations, it is necessary to consider time series data, with a sufficient numerousness that depends on their characteristics. Time series analysis is a delicate step; in order to obtain a correct significance and validity it is necessary to use an internal coherent outlier free dataset. It is necessary to analyze t...

We have reported previously that short bursts of Langmuir waves are frequently observed in the solar wind in isolated local depressions in the magnetic field magnitude, which are called ”magnetic holes”. The magnetic depression regions are often bounded by directional discontinuities (DDs). To study the relation between the waves and the discontinuities, we have examined 402 magnetic field disc...

The goal of this paper is to relate numerical dissipations that are inherited in high order shock-capturing schemes with the onset of wrong propagation speed of discontinuities. For pointwise evaluation of the source term, previous studies indicated that the phenomenon of wrong propagation speed of discontinuities is connected with the smearing of the discontinuity caused by the discretization ...

Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/about/terms.html. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your perso...

The effects of perturbing an on-going biological oscillation with a single brief stimulus are considered. If the time from some observable event before the stimulus to the next event after the stimulus is plotted as a function of the phase of the stimulus, then there may be discontinuities in this plot. The discontinuities reflect the size of the stimulus and the topological properties of the b...