The purpose of this article is to show the suitability of asynchronous automata as the formal model for the specification of architectural patterns and particular architectures. Independence of actions, which occurs naturally in asynchronous automata, has direct relevance in architectural descriptions. We demonstrate this via a sequence of examples. The aim of this exercise is to identify a sui...

Within a minimal extension of the SM in 4 + 1 dimensions, we study how Kaluza Klein excitations of the SM gauge bosons affect the electroweak precision observables. Asymmetries in Z decays provide the dominant bound on the compactification scale M of the extra dimension. If the higgs is so light that will be discovered at LEP2, we find the following 95%C.L. bounds: M > 3.5TeV (if the higgs live...

This paper presents a new model, MUSCLE (Multidirectional Scanning for Line Extraction), for automatic vectorization of raster images with straight lines. The algorithm of the model implements the line thinning and the simple neighborhood methods to perform vectorization. The model allows users to define specified criteria which are crucial for acquiring the vectorization process. In this model...

Service Oriented Architecture has entered the mainstream of business applications and articles about SOA continue to proliferate. However, texts that share people’s real-life experiences with SOA are scarce. Partly this can be attributed to difficulties in sharing architectural knowledge in a structured way. This article calls for more effort to be put into sharing knowledge through architectur...

In this paper, we comprehensively review the five-dimensional (5D) fully-covariant theory of gravitation developed by Zhang two decades ago and its recent applications in astrophysics and cosmology. This 5D gravity describes not only the fields, but also the matter and its motion in a 5D spacetime. The greatest advantage of this theory is that there does not exist any unknown parameter, so that...

Several researchers have proposed that skilled adults may solve single-digit addition problems (e.g. 3+1=4, 4+3=7) using a fast counting procedure. Practicing a procedure often leads to transfer of learning and faster performance of unpracticed items. Such transfer has been demonstrated using a counting-based alphabet arithmetic task (e.g., B+4 = C D E F) that indicated robust RT gains when unt...

This paper presents a collection of patterns as a starting point for a pattern language for agent based systems. After motivation and background, Section 2 discusses the context shared by all of the patterns. Section 3 describes the major architectural pattern, the Layered Agent, while Sections 4 and 5 discuss the main patterns found within the layers, and relationships between the patterns, re...

XThe issue of collaborative design has been elaborated extensively within the framework of previous CAAD–conferences. Today, an appreciation for traditional attitudes and methods can be observed, but interestingly, a mixture of approaches is also noticeable (computational techniques used in low–tech fabrication environments, for example). This allows for a round–table survey of the current stat...

We present a framework for the direct rendering of multiperspective images. We treat multiperspective imaging systems as devices for capturing smoothly varying set of rays, and we show that under an appropriate parametrization, multiperspective images can be characterized as continuous manifolds in ray space. We use a recently introduced class of General Linear Cameras (GLC), which describe all...

In this paper, we describe an operational methodology for characterising the architecture of complex technical systems and demonstrate its application to a large sample of software releases. Our methodology is based upon directed network graphs, which allows us to identify all of the direct and indirect linkages between the components in a system. We use this approach to define three fundamenta...