The basic strategy in real analysis is approximation. In particular, one often tries to approximate “general” elements of some infinite dimensional vector space by “nice” elements from some well understood vector space, possibly even finite dimensional. To quantify approximation schemes involves the consideration of metrics. For example, consider the vector space C([0, 1]) consisting of continu...

Abstract. This paper advocates the application of multi-agent techniques in the realisation of social robotic behaviour. We present the Social Robot Architecture, which integrates the key elements of agenthood and robotics in a coherent and systematic manner. This architecture seamlessly integrates real world robots, multi-agent development tools, and VRML visualisation tools into a coherent wh...

This paper presents LEM Long Elements Method, a new method for physically based simulation of deformable objects, suitable for real time animation and virtual environment interaction. The approach implements a static solution for elastic global deformations of objects lled with uid based on the Pascal's principle and volume conservation. The volumes are discretised in long elements, de ning mes...

To enable the description of safety-related software, the Unified Modeling Language is provided with well proven constructs as found, e.g., in corresponding subsets of the real-time programming language PEARL and in Function Block Diagrams according to IEC 61131-3. These constructs are ordered in nested sets to fulfill the respective requirements of the four Safety Integrity Levels of IEC 61508...

Let G be an algebraic group over a field k. We call g ∈ G(k) real if g is conjugate to g−1 in G(k). In this paper we study reality for groups of type G2 over fields of characteristic different from 2. Let G be such a group over k. We discuss reality for both semisimple and unipotent elements. We show that a semisimple element in G(k) is real if and only if it is a product of two involutions in ...

The central role of soft nucleon matrix elements in reactions of high energy electrons or real photons with nucleons is emphasized. These soft matrix elements are described in terms of skewed parton distributions. Their connections to ordinary parton distributions, form factors, Compton scattering and hard meson electroproduction is discussed.

In this paper, Space Time Adaptive Processing (STAP) applied on wideband signals from uniformly spaced real elements using Direct Data Domain Least Squares (DLS). Two antenna configurations are used: an array of dipole antenna (narrowband antenna) and an array of patch antenna (wideband antenna). A frequency transformation technique is used only for the case of narrowband antenna which transfor...

This Special Issue of Nanomaterials is focused on the continuing implementation of nanomaterials and nanostructures in the development of more sensitive and more specific sensing devices. As a result, these new devices employ smaller sensing elements and provide more "real time" capability. Often, the inclusion of nanomaterials leads to sensing elements for targets that were previously inaccess...

In this paper, we present some applications of quaternions and octonions. We present the real matrix representations for complex octonions and some of their properties which can be used in computations where these elements are involved. Moreover, we give a set of invertible elements in split quaternion algebras and in split octonion algebras.

The elements of the Mueller matrix for polydisperse systems of irregular, randomly oriented particles have been measured in absolute terms as a function of scattering angle for two wavelengths. These results have been compared to the matrix elements that were calculated for assemblies of spherical particles that fit the same particle size distribution function and have the same (real) refractiv...