A visualização da informação é uma ferramenta que permite ao usuário interagir
com o conteúdo a ser visualizado e compreender o seu significado. Sua utilização
implica na amplificação da cognição do usuário, o que facilita a realização de
trabalhos em…

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…

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…

by Brian D. Carlstrom., Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2001., Includes bibliographical references (p. 171-176)., This electronic version was submitted by the student author. The certified thesis is available in the Institute…

Nodes for emerging, high-density wireless networks will face the dual challenges of continuous, multi-year operation under diverse and challenging operating conditions. The wireless communication subsystem, a substantial consumer of energy, must therefore be designed with unprecedented energy efficiency. To meet…

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 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…

Descripción completa.

2005, Acesso em: 28 maio 2008.

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…