Abstract This paper presents radon flux profiles from four regions in Schleswig–Holstein (Northern Germany). Three of these are located over deep-rooted tectonic faults or salt diapirs and one is an area without any halokinetic activity, but with steep topography. Contrary to recently published studies on spatial patterns soil gas concentration we measured into the atmosphere. All devices each ...

Substantiation of the averaging method for differential equations with maxima is presented. Two theorems on substantiates for differential equations with maxima are established.

A new class of neural network aimed at early visual processing is described; we call it a Neural Analog Diffusion-Enhancement Layer or "NADEL." The network consists of two levels which are coupled through feedfoward and shunted feedback connections. The lower level is a two-dimensional diffusion map which accepts visual features as input, and spreads activity over larger scales as a function of...

The problent of h~cating local maxima and minmm of a time|ion from approximate measurement re.~ults is viud for many physical applications: in speartd mud z'i~, chemical species are klentified by IoGtting local maxima ~f the spectra; in rtuti~vatromnny, sources of celestial ~tdio emission, and their subcom|xments, are identified hy hmating hg2al nmxima of the measured brightne~ of the radio sky...

Many studies of brain function with positron emission tomography (PET) involve the interpretation of a subtracted PET image, usually the difference between two images under baseline and stimulation conditions. The purpose of these studies is to see which areas of the brain are activated by the stimulation condition. In many cognitive studies, the activation is so slight that the experiment must...

A method is proposed to detect a human iris location and size in a digital image given some point lying inside the pupil. Method is based on the construction of histogram projections of local brightness gradients, and interrelating local maxima of these histograms as probable positions of pupil and iris borders. The method has a low calculation cost.

In this report a new designed real-time lane detection algorithm based on monocular vision and inertial measurement unit (IMU) is explained and evaluated. The acquired image from the camera is undergoing an inverse perspective mapping to create a bird-view perspective of the road. Local maxima in this image determine the lane-markers. Faulty local maxima are removed and constrained line fitting...

We provide two fundamental results on the population (infinite-sample) likelihood function of Gaussian mixture models with M ≥ 3 components. Our first main result shows that the population likelihood function has bad local maxima even in the special case of equally-weighted mixtures of well-separated and spherical Gaussians. We prove that the log-likelihood value of these bad local maxima can b...