An application of fuzzy logic for hardware/software partitioning in embedded systems

Hardware/Software partitioning (HSP) is a key task for embedded system co-design. The main goal of this task is to decide which components of an application are to be executed in a general purpose processor (software) and which ones, on a specific hardware, taking into account a set of restrictions expressed by metrics. In last years, several approaches have been proposed for solving the HSP problem, directed by metaheuristic algorithms. However, due to diversity of models and metrics used, the choice of the best suited algorithm is an open problem yet. This article presents the results of applying a fuzzy approach to the HSP problem. This approach is more flexible than many others due to the fact that it is possible to accept quite good solutions or to reject other ones which do not seem good. In this work we compare six metaheuristic algorithms: Random Search, Tabu Search, Simulated Annealing, Hill Climbing, Genetic Algorithm and Evolutionary Strategy. The presented model is aimed to simultaneously minimize the hardware area and the execution time. The obtained results show that Restart Hill Climbing is the best performing algorithm in most cases.

A valorização da função do objecto de design em contexto museológico : lógicas expositivas - a museologia do design industrial

The design objects give us a testimony of those who imagined, designed, developed, manufactured and used them. Each object, intentionally or not, portrays its own story, all the visible details are part of a decision taken by someone at some time of its chronology. The act of collecting objects, as well as private collections are the basis for the creation of museums as we know them today. Musealization - taking objects into a museum - means that one is restoring, preserving, enhancing some objects compared to others. And when restoring these objects, one is restoring their symbolic capacity, i.e. the fact that they tell a story, means you are restoring its message. In a museum, although out of context and deprived of most of the functions to which they had been designed for, the objects acquire other function(s), preserving their importance. Design museums give us the possibility to have a closer view of the objects, rather than just look at them, along with the pedagogical function. Thus presents a proposal for museography regarding industrial design, which is based on the appreciation of the function of anonymous design objects, based on expository logic, that takes the visitor to see, instead of just looking at objects, offering the possibility of interaction with the same, increasing the relationship between human being - object - museum, including groups with special needs, which are often forgotten in these exhibitions. This dissertation is a reflection and a projectual intervention on the design object in a museum, clarifying the concepts of object and museum, covering issues regarding the relevance of design museums, and culminating in the presentation of a museography project, where the function of an object prevails

A study in the design of an arithmetic element for serial processing in a linear iterative structure /

Vita.

Topics in MOSFET network design /

Thesis--University of Illinois at Urbana-Champaign.

Design of irredundant multiple-level MOS networks for multiple-output and incompletely specified functions /

Thesis (M. S.)--University of Illinois at Urbana-Champaign.

Design of Irredundant MOS Networks : a program manual for the design algorithm DIMN /

Thesis (M. S.)--University of Illinois at Urbana-Champaign.

A systematic approach to the design of structures for arithmetic /

"NSF-MCS-80-00058"--Cover.

The design of NOR networks under fan-in and fan-out const[r]aints : a programming manual for FIFOTRAN-G1 /

"Report No. UIUCDCS-R-74-661"

Sneak circuit analysis : a means of verifying design integrity.

"July 1986."

The extended metamorphosis of a complete bipartite design into a cycle system

A K-t,K-t-design of order n is an edge-disjoint decomposition of K-n into copies of K-t,K-t. When t is odd, an extended metamorphosis of a K-t,K-t-design of order n into a 2t-cycle system of order n is obtained by taking (t - 1)/2 edge-disjoint cycles of length 2t from each K-t,K-t block, and rearranging all the remaining 1-factors in each K-t,K-t block into further 2t-cycles. The 'extended' refers to the fact that as many subgraphs isomorphic to a 2t-cycle as possible are removed from each K-t,K-t block, rather than merely one subgraph. In this paper an extended metamorphosis of a K-t,K-t-design of order congruent to 1 (mod 4t(2)) into a 2t-cycle system of the same order is given for all odd t > 3. A metamorphosis of a 2-fold K-t,K-t-design of any order congruent to 1 (mod 4t(2)) into a 2t-cycle system of the same order is also given, for all odd t > 3. (The case t = 3 appeared in Ars Combin. 64 (2002) 65-80.) When t is even, the graph K-t,K-t is easily seen to contain t/2 edge-disjoint cycles of length 2t, and so the metamorphosis in that case is straightforward. (C) 2004 Elsevier B.V. All rights reserved.

Architectural design in object-z

We present a process for introducing an object-oriented architecture into an abstract functional specification written in Object-Z. Since the design is derived from the specification, correctness concerns are addressed as pan of the design process. We base our approach on refactoring rules that apply to class structure, and use the rules to implement design patterns. As a motivating example, we introduce a user-interface design that follows the model-view-controller paradigm into an existing specification.

Using Developmental Theories to Inform the Design of Technology for Children

Electronic Blocks are a new programming environment, designed specifically for children aged between three and eight years. As such, the design of the Electronic Block environment is firmly based on principles of developmentally appropriate practices in early childhood education. The Electronic Blocks are physical, stackable blocks that include sensor blocks, action blocks and logic blocks. Evaluation of the Electronic Blocks with both preschool and primary school children shows that the blocks' ease of use and power of engagement have created a compelling tool for the introduction of meaningful technology education in an early childhood setting. The key to the effectiveness of the Electronic Blocks lies in an adherence to theories of development and learning throughout the Electronic Blocks design process.

An automated failure mode and effect analysis based on high-level design specificication with behavior trees

Formal methods have significant benefits for developing safety critical systems, in that they allow for correctness proofs, model checking safety and liveness properties, deadlock checking, etc. However, formal methods do not scale very well and demand specialist skills, when developing real-world systems. For these reasons, development and analysis of large-scale safety critical systems will require effective integration of formal and informal methods. In this paper, we use such an integrative approach to automate Failure Modes and Effects Analysis (FMEA), a widely used system safety analysis technique, using a high-level graphical modelling notation (Behavior Trees) and model checking. We inject component failure modes into the Behavior Trees and translate the resulting Behavior Trees to SAL code. This enables us to model check if the system in the presence of these faults satisfies its safety properties, specified by temporal logic formulas. The benefit of this process is tool support that automates the tedious and error-prone aspects of FMEA.