The Local Effect Model (LEM) represents an integral part of the heavy ion treatment planning software TRiP98 to calculate the biologically equivalent dose. Recently, the incorporation of cluster effects of single strand breaks at large local doses around the center of ion tracks was shown to be of particular importance for the prediction of the relative biological effectiveness (RBE) of the ini...

We propose a method that we call auto-adaptive convolution which extends the classical notion of convolution in pictures analysis to function analysis on a discrete set. We define an averaging kernel which takes into account the local geometry of a discrete shape and adapts itself to the curvature. Its defining property is to be local and to follow a normal law on discrete lines of any slope. W...

We provide a local as well as a semilocal convergence analysis for a certain class of fixed slope iterations in a Banach space setting. Using a weaker Hölder condition on the operator involved and more precise estimates than in [1], [2] we provide in the semilocal case: finer error estimates on the distances involved and an at least as precise information on the location of the solution; in the...

This paper presents the development and analysis of a wavcfront control strategy for a dense adaptive optics systcm with segmented primary mirror. Systems of this type represent a substantial departure from most conventional adaptive optics systems in that the deformable clcmcnt is the segmented primary mirror and the fccdhack signal includes both the local wavefront tilt and the relative edge ...

A novel etch front roughening phenomenon has been observed in the plasma etching of Si(100). The morphology exhibits a network structure with holes which coarsen with etech time, and a wavelength selection with a characteristic spatial frequency decreasing with time. The average local slope is invariant while the vertical roughness grows as w , t , with b ­ 0.91 6 0.03. We suggest a nonlocal La...

This paper presents an application of a recently developed methodology for the identification and analysis of flat surfaces affecting rock masses using 3D LiDAR point clouds(Riquelme et al., 2013 submited). The used methodology has been applied to calculate the algebraic equations of the different discontinuities of a rock slope through a methodology based on next three steps: (a) local curvatu...

Smooth slopes can be displayed on treadmills through tilt mechanisms , but these mechanisms are typically too slow to present sudden slope changes. The Sarcos Treadport utilizes a mechanical tether that can apply horizontal forces to the user to simulate gravity forces. Psychophys-ical results are presented to show that slope display via tether forces is a reasonable facsimile for treadmill slo...

We give a “second generation” exposition of the slope filtration theorem for modules with Frobenius action over the Robba ring, providing a number of simplifications in the arguments. Some of these are inspired by parallel work of Hartl and Pink, which points out some analogies with the formalism of stable vector bundles.

In this paper we prove that the function giving the frequency of a class of patterns of digital planes with respect to the slopes of the plane is continuous and piecewise affine, moreover the regions of affinity are specified. It allows to prove some combinatorial properties of a class of patterns called (m, n)-cubes. This study has also some consequences on local estimators of area: we prove t...

We use a large sample of galaxies from the Two Micron All Sky Survey (2MASS) and the Sloan Digital Sky Survey (SDSS) to calculate galaxy luminosity and stellar mass functions in the local Universe. We estimate corrections for passband shifting and galaxy evolution, as well as present-day stellar mass-to-light (M/L) ratios, by fitting the optical–near-infrared galaxy data with simple models. Acc...