In the manufacturing industry out-sourcing/integration is becoming an important business pattern (not a clear statement-integration still done in house-component design and manufacturing outsourced). An engineering system often consists of many subsystems supplied by different companies. Bridge between thoughts is weak.…

Los estudiantes tienen dificultades en el aprendizaje de la Física porque a menudo no entienden completamente conceptos y principios que son a veces imposibles de ver (como en los fenómenos electromagnéticos), lo que dificulta su comprensión. A esto hemos de…

This paper describes a set of tools and Java classes that allow the Lucene text search engine to use morphological information to index and search; in particular, it describes the use of the linguistic resources developed for the Apertium open-source…

Java programs are deployed in a bytecode format that is executed by a Java virtual machine (JVM). JVM performance is determined by several major components: execution engine, garbage collector, and threading system. The static compilation and optimization approach, such as…

In designing compiler analyses and optimisations, the choice of intermediate representation (IR) is a crucial one. Static Single Assignment (SSA) form in particular is an IR with interesting properties, enabling certain analyses and optimisations to be more easily implemented while…

This paper presents a free Java software platform which enables users to easily create advanced robotic applications together with image processing. This novel tool is composed of two layers: 1) Easy Java
Simulations (EJS), an open-source tool which provides support…

Sumario:
1- Introducción
2- Sistemas móviles y sensibles al contexto
3- E-commerce y M-commerce
4- Hipermedia e hipermedia física
5- Descripción del sistema basado en hipermedia física
6- Diseño
7- Implementación
8-…

In this article we present a performance comparison of four symmetric block ciphers namely DES, Triple-DES, AES, and Blowfish. Performance evaluation based on CPU execution time is conducted under WinXP and Ubuntu /Linux version 8.10 operating system platforms. The study…

Side-effect analysis gives information about the set of locations that a statement may read or modify. This analysis can provide information useful in a compiler for performing aggressive optimizations. The impact of the use of side-effect analysis in compiler optimizations…

A fundamental problem in interprocedural program analyses is the need to represent and manipulate collections of large sets. Binary Decision Diagrams (BDDs) are a data structure widely used in model checking to compactly encode large state sets. In this dissertation,…