Operating Systems Computers
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Elaboration of an instrument to evaluate the recognition of Brazilian melodies in children
Resumo Introdução: Há evidências que apontam para a importância da avaliação da percepção musical através de instrumentos objetivos e subjetivos. No Brasil, há escassez de instrumentos que avaliem a percepção musical. Objetivo: Desenvolver um instrumento para avaliar o reconhecimento de melodias tradicionais brasileiras e investigar o desempen
Braz. j. otorhinolaryngol.. Publicado em: 13/12/2019
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2. Uma abordagem complementar à tradução de endereços para conectividade transparente
Traditional NAT is an extremely common technique, employed on routers in order to share on single Internet connection among many computers of a local network. This technique has been responsible for the survival of IPv4 with its limited address space, and is virtually transparent to many of the Internet application: those that uses the classic client-server
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2012
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3. A QoS-Based approach for dynamic web service composition.
Web services have become a de facto standard for integration of systems in distributed environments by providing means for exchanging data in a standardized way over the Internet. In fact, this allows computer-computer interaction regardless the programming languages, platform and operating systems used. However, the way services are defined is not enough fo
Publicado em: 2009
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4. Sins : um editor Xchart na forma de plugin para o ambiente eclipse / Sins : an Xchart editor as a plugin for the eclipse environment
: Sistemas reativos têm grande importância em muitas áreas da engenharia e da computação, mas a qualidade e maturidade das metodologias e ferramentas de apoio ao desenvolvimento deixam a desejar em relação às voltadas a sistemas transformacionais. Uma das metodologias de destaque é a Arquitetura Orientada a Modelos, onde os sistemas reativos são de
Publicado em: 2007
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5. Um middleware para execução de processos estruturados em grades computacionais / A middleware for execution of structured processes in computer grids
O conceito de grade surgiu com a necessidade crescente de se aproveitar recursos computacionais disponíveis em uma ou mais organizações para resolver problemas que exigem compartilhamento de dados e um grande poder de processamento. Uma grade computacional tem como objetivo principal permitir a execução distribuída e paralela de tarefas em recursos com
Publicado em: 2007
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6. Framework de Kernel para um sistema de segurança imunologica
The alarming growth in the quantity and the sophistication of the attacks that threaten modem computer systems shows the need for new, more efticient security systems. In nature, there is a biological system that accomplishes this task with a remarkable efticiency: the human immune system. Not only this system is capable of assuring the survival of a human b
Publicado em: 2006
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7. Virtual machines in secure environments / Maquinas virtuais em ambientes seguros
Desde o início da computação a idéia de máquinas virtuais vem sendo aplicada para estender o multiprocessamento, multi-programação e multi-acesso, tornando os sistemas multi-ambiente. O contínuo aumento no poder de processamento dos computadores fez com que máquinas muito rápidas estivessem ao alcance de qualquer usuário, surgindo PCs com processa
Publicado em: 2006
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8. Monitoring activities in hosts prepared to be compromised (Honeypots) / Monitoração de atividades em máquinas preparadas para serem comprometidas (Honeypots)
Not long ago, information systems security was closely associated with passive protection, always assuming a purely defensive stance. Nowadays, this approach is changing. Reactive measures are helping to improve systems security, with the use of hosts prepared to be compromised (honeypots) providing information about the techniques used by the attackers, fro
Publicado em: 2004
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9. COMPUTATIONAL ASPECTS OF MARKET EVALUATION OF THE DYNAMIC SECURITY ON POWER ELECTRICAL SYSTEMS / ASPECTOS COMPUTACIONAIS E DE MERCADO DA AVALIAÇÃO DA SEGURANÇA DINÂMICA DE SISTEMAS ELÉTRICOS DE POTÊNCIA
In this work, different methodologies for the dynamic security assessment of electric energy systems, the calculation of preventive control measures and the quantification of the economic impact of the generation rescheduling, are used. For the dynamic security assessment the following modules have been adopted: initial data processing and generation of the
Publicado em: 2003
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10. Clock synchronization in computer networks with quality of service
The Network Time Protocol (NTP), a protocol that synchronizes clocks from networked computers, has nearly two decades of existence and is continuously evolving. Due to its robust treatment of phase and frequency, an algorithm that disciplines the local machine clock, implementations available for a great deal of platforms and operating systems, it became a �
Publicado em: 2003
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11. Camada de redirecionamento : um novo paradigma para a analise de sistemas distribuidos
A multicomputer system has some characteristics which, when well explored, allow us to get real throughtput and funcionality that aren t found in other systems, or even in each individual computer. In order to explore these characteristics it is necessary to integrate, in an adequate manner, all the single resources in only one resource, now representing the
Publicado em: 1993
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12. Improved programs for DNA and protein sequence analysis on the IBM personal computer and other standard computer systems.
We have previously described programs for a variety of types of sequence analysis (1-4). These programs have now been integrated into a single package. They are written in the standard C programming language and run on virtually any computer system with a C compiler, such as the IBM/PC and other computers running under the MS/DOS and UNIX operating systems.