João Carlos Martins

ORCID: 0000-0002-4567-7416
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About
Contact & Profiles
Research Areas
  • Water Quality Monitoring Technologies
  • Air Quality Monitoring and Forecasting
  • Control Systems and Identification
  • Neuroscience and Neural Engineering
  • Food Supply Chain Traceability
  • IoT and Edge/Fog Computing
  • CCD and CMOS Imaging Sensors
  • Neural Networks and Applications
  • Fault Detection and Control Systems
  • Water Quality Monitoring and Analysis
  • Healthcare Regulation
  • Smart Agriculture and AI
  • Sensor Technology and Measurement Systems
  • Advanced Chemical Sensor Technologies
  • Meat and Animal Product Quality
  • Neural dynamics and brain function
  • Underwater Vehicles and Communication Systems
  • Greenhouse Technology and Climate Control
  • Sensory Analysis and Statistical Methods
  • Iterative Learning Control Systems
  • Power Quality and Harmonics
  • Embedded Systems and FPGA Design
  • Biomedical Research and Pathophysiology
  • Linguistic Education and Pedagogy
  • Public Health and Environmental Issues

Instituto Politécnico de Beja
2006-2024

University of Vassouras
2022

Hospital Pedro Hispano
2020

Pontifícia Universidade Católica de São Paulo
2018

Universidade Federal da Paraíba
2017

Universidade Federal de Campina Grande
2017

Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento
1993-2014

This paper describes a set of PHP based tools created to develop applications for instrumentation remote control through Web browsers. These include module GPIB (general purpose interface bus) in Win32 platform and classes that make easier the creation GUIs browsers instrument data visualization. The AJAX technology allows asynchronous loading making it possible have same browser view different panels are able interact be updated independently.

10.1109/vecims.2008.4592750 article EN 2008-07-01

Traditional ewe's cheese producers face certain challenges caused by fluctuating environmental parameters inside the ripening room, which lead to lack of homogeneity in final product. The present research discusses application computer fluid dynamics for simulating distribution parameters, predicting airflow pattern, and identifying critical areas where such could cause reduced quality. A new monitoring system was developed including presence sensors, temperature humidity dataloggers,...

10.3390/foods10081716 article EN cc-by Foods 2021-07-23

The accurate modelling of the human visual system, particularly retina, would be a great achievement and big step in development prostheses. Several methods algorithms have been proposed to accomplish such difficult task, mainly what concerns adaptation nonlinear mechanisms retina. This paper presents results obtained by employment additive logistic regression techniques model block canonical Linear-Nonlinear-Poisson retina model, considering spike triggering process from statistical point...

10.1109/icip.2007.4379308 article EN 2007-01-01

Este trabalho propõe a utilização de um controle repetitivo para restaurar forma dinâmica tensão em cargas sensíveis conectadas à rede elétrica. O intrinsecamente é capaz mitigar distorção harmônica e estruturado apenas por uma função transferência. Desta forma, não há necessidade da aplicação filtros harmônicos seletivos. Além disso, o sistema trabalhar referências senoidais e, assim, evita utilizar transformação Park. algoritmo mínimos quadrados recursivo também incluído ao controle, fim...

10.18618/rep.2017.3.2681 article PT Eletrônica de Potência 2017-09-30

A new prototype of a ripening chamber was proposed in the CFD4CHEESE project aiming to evaluate application computational fluid dynamics optimization traditional cheeses conditions. With purpose evaluating possible impact on energy cost cheese three Portuguese regions (Setúbal, Évora, and Beja), we demonstrated potential economic benefits prototype. The automation process would imply higher productive efficiency, reducing consumption water electricity. simple consideration reduction...

10.3390/su12166682 article EN Sustainability 2020-08-18

We present the case of a 62-year-old woman that reported right hemibody excessive sweating, which slowly progressed over 15 years, and caused great social embarrassment. On examination, hyperhidrosis was observed. A very slight anisocoria also (ambient light: 3

10.1136/bcr-2020-238541 article EN BMJ Case Reports 2020-09-01

The paper presents a study of Internet Things (IoT) systems used on physical and chemical water quality resources sensing. United Nations (UN) Sustainable Development Goals (SDGs) for 2030, declaring commitment to “Ensure availability sustainable management sanitation all, is taken as reference the ensuing analysis literature. IoT changing landscape environmental monitoring case quantity no exception. A comparison among based sensing presented. It focused on: sensors; data communication...

10.22034/wpj.2021.260447.1019 article EN 2020-11-01

This paper describes the application of constellation based multiple model adaptive estimation (CBMMAE) algorithm to identification and parameter nonlinear systems. The method was successfully applied linear systems both stationary nonstationary, being able fine tune its parameters. starts by establishing a minimum set models that are geometrically arranged in space spanned unknown parameters, adopts strategy adaptively update order find resembling system under identification. By downscaling...

10.5281/zenodo.44203 article EN European Signal Processing Conference 2014-11-13
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