Hardware Implementation
Mostrando 1-12 de 135 artigos, teses e dissertações.
-
1. TITULADOR AUTOMÁTICO EM FLUXO-BATELADA UTILIZANDO UM HARDWARE DE CÓDIGO FONTE ABERTO ARDUINO
This work describes the development of an automatic titrometric method in flow-batch with potentiometric detection using alternative and easily accessible materials. Arduino board and its modules, solenoid valves to control the flow rate, peristaltic pump to propel and suction fluids and tubes of inert material to connect the different parts of the Flow-Batc
Quím. Nova. Publicado em: 2021-03
-
2. Low-cost wireless sensor network applied to real-time monitoring and control of water consumption in residences
Resumo O objetivo deste trabalho é realizar o monitoramento e o controle em tempo real do consumo de água nas residências, com feedback aos usuários e de baixo custo. As informações de consumo de água serão disponibilizadas na nuvem e poderão ser acessadas através de um aplicativo de celular. Os dados coletados possibilitam que a concessionária de
Rev. Ambient. Água. Publicado em: 28/11/2019
-
3. Modeling and FPGA-based implementation of an efficient and simple envelope detector using a Hilbert Transform FIR filter for ultrasound imaging applications
Abstract Introduction Although the envelope detection is a widely used method in medical ultrasound (US) imaging to demodulate the amplitude of the received echo signal before any back-end processing, novel hardware-based approaches have been proposed for reducing its computational cost and complexity. In this paper, we present the modeling and FPGA impleme
Res. Biomed. Eng.. Publicado em: 15/01/2018
-
4. LOW COST ANALYZER FOR THE DETERMINATION OF PHOSPHORUS BASED ON OPEN-SOURCE HARDWARE AND PULSED FLOWS
The need for automated analyzers for industrial and environmental samples has triggered the research for new and cost-effective strategies of automation and control of analytical systems. The widespread availability of open-source hardware together with novel analytical methods based on pulsed flows have opened the possibility of implementing standalone auto
Quím. Nova. Publicado em: 2016-04
-
5. Hardware embedded fiber sensor interrogation system using intensive digital signal processing
The description of an interrogation system for fiber Bragg grating sensors is reported. The full implementation in hardware of the required signal processing is proposed and made publicly available. The hardware description is implemented in a field programmable gate array (FPGA) development kit and the processing units allow one to control an optoelectronic
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2014-12
-
6. Digital controller design considering hardware constraints: application in a paraplegic patient
INTRODUCTION: A methodology was developed for implementing closed-loop control algorithms and for evaluating the behavior of a system, considering certain component restrictions used in laboratory implementation. METHODS: Mathematical functions representing a model of the biological system were used for knee extension/flexion movements. A Proportional Integr
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-09
-
7. ChipCflow - uma ferramenta para execução de algoritmos utilizando o modelo a fluxo de dados dinâmico em hardware reconfigurável / ChipCflow - a tool to executing algorithms using dynamic dataflow architecture in FPGA
Devido à complexidade das aplicações, a demanda crescente por sistemas que usam milhões de transistores e hardware complexo; tem sido desenvolvidas ferramentas que convertem C em Linguagem de Descrição de Hardware, tais como VHDL e Verilog. Neste contexto, esta tese apresenta o projeto ChipCflow, o qual usa arquitetura a fluxo de dados, para implementa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2012
-
8. In-flight collision avoidance controller based only on OS4 embedded sensors
The major goal of this research was the development and implementation of a control system able to avoid collisions during the flight for a mini-quadrotor helicopter, based only on its embedded sensors without changing the environment. However, it is important to highlight that the design aspects must be seriously considered in order to overcome hardware lim
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-09
-
9. ARQUITETURAS DE CRIPTOGRAFIA DE CHAVE PÚBLICA: ANÁLISE DE DESEMPENHO E ROBUSTEZ / PUBLIC-KEY CRYPTOGRAPHY ARCHITECTURES: PERFORMANCE AND ROBUSTNESS EVALUATION
Given the evolution of the data communication field, and the resulting increase of the information flow in data, networks security became a major concern. Modern cryptographic methods are mathematically reliable. However their implementation in hardware leaks confidential information through side-channels like power consumption and electromagnetic emissions.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/04/2011
-
10. Implementação de processador banda base ofdma para downlink lte em fpga
This work treats of an implementation OFDMA baseband processor in hardware for LTE Downlink. The LTE or Long Term Evolution consist the last stage of development of the technology called 3G (Mobile System Third Generation) which offers an increasing in data rate and more efficiency and flexibility in transmission with application of advanced antennas and mul
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/03/2011
-
11. Processamento largamente linear em arranjo de antenas : proposta, avaliação e implementação prática de algoritmos / Widely linear processing in antenna arrays : proposal, evaluation and practical implementation of algorithms
O Processamento Largamente Linear, desenvolvido durante a década de 1990, tem levado a uma melhoria no desempenho de algoritmos adaptativos para determinadas situações que empregam sinais impróprios. Quando aplicado a arranjos de antenas, esse tipo de processamento apresenta a potencialidade ser mais robusto e eficiente que as técnicas clássicas de fil
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/02/2011
-
12. Constant Boundary Elements on graphics hardware: a GPU-CPU complementary implementation
Numerical simulation of engineering problems has reached such a large scale that the use of a parallel computing approach is required to obtain solutions within a reasonable time. Recent efforts have been made to implement these large scale computational tasks on general-purpose programmable graphics hardware (GPGPU). The Graphics Processing Unit (GPU) is sp
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-12