This report describes a pilot comparison of resistance measurements performed between Danish Fundamental Metrology(DFM), Lyngby, Denmark, and Semiconductor Physics Institute (SPI), Vilnius, Lithuania, at resistance values 100 Ω and 10kΩ. Dansk resumé: Denne rapport beskriver en pilotsammenligning af måling af resistans mellem Dansk Fundamental Metrologi (DFM), Lyngby, Danmark, og Semiconductor ...

All the methods for estimating the fundamental matrix do not naturally exploit the rank-2 constraint. For these reason some few rank-2 parameterizations of the fundamental matrix have been proposed over the years. In general they can be or an over-parameterization (12 parameters) and being generally valid, or use a minimal set of parameters (eight) but do not cover all the rank-2 matrices. We p...

Relationship between the speed of gravity cg and the speed of light ce in the bi-metric theory of gravity is discussed. We reveal that the speed of light is a function of the speed of gravity which is a primary fundamental constant. Thus, experimental measurement of relativistic bending of light propagating in time-dependent gravitational field directly compares the speed of gravity versus the ...

Let Sf be a compact Riemann surface, which we will assume to have curvature normalized to be — 1 , and let 0=A0<A1^A2^• • be the eigenvalues corresponding to the problem AF+AF=0 on Sf \ where A is the Laplacian for £P. In an otherwise very interesting and useful paper [2], McKean has stated that it is always the case that A ^ J. In this paper, we will show that this need not be true, and that i...

We give a general structure theory for reconstructing group actions on sets without any assumptions on the group, the action, or the set on which the group acts. Using certain ‘local data’ D from the action we build a group G(D) of the data and a space X (D) with an action of G(D) on X (D) that arise naturally from the data D. We use these to obtain an approximation to the original group G, the...

Vibrotactile texture stimuli have commonly been used to produce sensations of roughness. The extension of such stimuli to other textural modalities enhances their applicability. We found that laterally asymmetric vibrotactile stimuli cause a sensation of friction rather than vibration. When a vibrotactile contactor moves in one direction, it sticks to the finger pad and induces lateral skin str...

Let Λ0, . . . , Λn ⊂ R be a finite collection of lattices of the same volume. When does there exist a set Ω ⊂ R that is a fundamental domain for all Λi, i = 0, . . . , n? The main result of this paper is that when the (group-theoretic) sum Λ0 + · · · + Λn of the dual lattices is direct (this means that the equation x0 + · · · + xn = 0, with xi ∈ Λi , has no nontrivial solution), then a Borel me...

This document presents the results of the seminar “Conceptual Architecture Patterns” of the winter term 2002 in the Hasso–Plattner–Institute. It is a compilation of the student’s elaborations dealing with some conceptual architecture patterns which can be found in literature. One important focus laid on the runtime structures and the presentation of the patterns.