Search Results - "Girão, P.S."

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  1. 1

    Effluents, surface and subterranean waters monitoring: Review and advances by Lay-Ekuakille, A., Durickovic, I., Lanzolla, A., Morello, R., De Capua, C., Girão, P.S., Postolache, O., Massaro, A., Van Biesen, L.

    “…Surface and runoff waters should be characterized and monitored according to mandatory legislation inwesterncountries. Many legislations have hitherto…”
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    Journal Article
  2. 2

    Smart Flexible Turbidity Sensing Based on Embedded Neural Network by Postolache, O., Dias Pereira, J.M., Girao, P.S., Ramos, H.

    Published in 2006 5th IEEE Conference on Sensors (01-10-2006)
    “…This paper presents a flexible turbidity sensing system that implements single and multiple infrared (IR) beam architectures. The hardware includes two pairs…”
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    Conference Proceeding
  3. 3

    Improving Accelerometers Performance Using Smart Sensing Techniques by Pereira, J.M.D., Banha, C., Postolache, O., Girao, P.S.

    Published in 2006 5th IEEE Conference on Sensors (01-10-2006)
    “…This paper presents a solution to improve the performance of a micro electro-mechanical system (MEMS) accelerometer exploring oversampling and sensor fusion…”
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    Conference Proceeding
  4. 4

    Unobstrusive heart rate and respiratory rate monitor embedded on a wheelchair by Postolache, O., Girao, P.S., Mendes, J., Postolache, G.

    “…A biomedical system embedded on a wheelchair able to measure heart rate, respiratory rate, and the wheelchair motion state is presented. A wireless…”
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    Conference Proceeding
  5. 5

    Vital Signs Monitoring System Based on EMFi Sensors and Wavelet Analysis by Postolache, O., Girao, P.S., Postolache, G., Pereira, M.

    “…The paper presents a monitoring system for non-obtrusive measuring of vital signs such as respiration and heart activity. Two sensing channels including…”
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    Conference Proceeding
  6. 6

    New Approach on Cardiac Autonomic Control Estimation Based on BCG Processing by Postolache, O., Girao, P.S., Postolache, G.

    “…The work presents a biomedical instrument for unobtrusive heart rate variability measurement, using ballistocardiographyc (BCG) signal based on…”
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    Conference Proceeding
  7. 7

    New Device for Assessment of Autonomous Nervous System Functioning in Psychophysiology by Postolache, O., Postolache, G., Girao, P.S.

    “…In the paper a new device/or autonomic nervous system patterns assessment with application in psychophysiology is presented. The system is characterized by two…”
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    Conference Proceeding
  8. 8

    Health Status Monitor Based on Embedded Photoplethysmography and Smart Phone by Postolache, O., Girao, P.S., Sinha, P., Anand, A., Postolache, G.

    “…The paper presents a wireless personal area network (WPAN) including two Bluetooth enabled measuring nodes that delivers information about some physiological…”
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    Conference Proceeding
  9. 9

    Cross-Correlation and Sine-Fitting Techniques for High Resolution Ultrasonic Ranging by Queiros, R., Girao, P.S., Cruz Serra, A.

    “…This paper presents a combination of two techniques for high resolution ultrasonic distance measurements in air. The first is the cross-correlation between…”
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    Conference Proceeding
  10. 10

    Non-invasive Mobile Homeostasis Instrument by Postolache, O., Postolache, G., Girao, P.S.

    “…In the paper a mobile instrument for non-invasive homeostasis monitoring with abnormalities automatic notification is presented. The tool is designed for…”
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    Conference Proceeding
  11. 11

    A Smart and Portable Solution for Heavy Metals Concentration Measurements by Pereira, J.M.D., Postolache, O., Girao, P.S.

    “…This paper presents a measurement solution for heavy metals concentrations. The proposed solution can be installed in stand-alone environmental monitoring…”
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    Conference Proceeding
  12. 12

    Advanced signal processing techniques to measure and classify non-nutritive suction of premature and newly born babies by Pereira, M.D., Viegas, V., Banha, C., Postolache, O., Girao, P.S.

    “…This paper addresses a crucial problem that exists frequently in data processing of biomedical signals. Almost all of these signals have a very low…”
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    Conference Proceeding
  13. 13

    Distributed Instrumentation and Geographic Information System for Dolphins' Environment Assessment by Postolache, O., Girao, P.S., Patricio, G., Sacramento, J., Macedo, P., Pereira, M.D.

    “…Dolphins' environment assessment is an activity able to contribute to the reduction of their mortality especially in regions with a reduced number of…”
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    Conference Proceeding
  14. 14

    A Digitally Programmable A/D Converter for Smart Sensors Applications by Pereira, J.M.D., Postolache, O., Girao, P.S.

    “…Nonlinear analog to digital conversion in smart sensor applications is an important topic since signal digitalization and linearization can be performed in a…”
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    Conference Proceeding
  15. 15

    SDI-12 based turbidity measurement system with field calibration capability by Pereira, J.M.D., Postolache, O., Girao, P.S., Ramos, H.

    “…Turbidity is a measure of how much the material suspended in water decreases the passage of light through the water. In order to carry out accurate turbidity…”
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    Conference Proceeding
  16. 16

    Wireless water quality monitoring system based on field point technology and Kohonen maps by Postolache, O., Girao, P.S., Pereira, J.M.D., Ramos, H.

    “…Designing and implementing a distributed measurement system for water quality (WQ) monitoring characterized by multiparameter measurement capabilities,…”
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    Conference Proceeding
  17. 17

    Wireless System for Traffic Control and Law Enforcement by Girao, P.S., Alegria, F., Viegas, J.M., Baichuan Lu, Vieira, J.

    “…This paper reports the design of a wireless system to be used for intelligent traffic control and also for law enforcement. The system is an upgrade of the one…”
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    Conference Proceeding
  18. 18

    Measurement of low level DC magnetic fields using a synchronous demodulation technique by Ramos, H.G., Girao, P.S.

    “…A simple, yet accurate, method for the measurement of low-level DC magnetic fields is proposed. Since a synchronous demodulation technique is used, only…”
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    Journal Article Conference Proceeding
  19. 19

    A Self-Adaptable Method to Optimize the Performance of Frequency-To-Code Conversion Based Measurement Systems by Pereira, J.M.D., Postolache, O., Girao, P.S.

    “…Accuracy, error compensation and simplicity of transducer's communication and interfacing are three important topics in the design and development of any…”
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    Conference Proceeding
  20. 20

    A wavelet-based method for estimation of the autonomic balance after experimentally drug administration by Postolache, G., Carvalho, L.S., Rocha, I., Postolache, O., Girao, P.S.

    “…In the last decade, new techniques have been introduced for analysis of nonstationary cardiovascular signal. Widespread used are the short time Fourier…”
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    Conference Proceeding