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12 Result(s)

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  1. No Access

    Article

    The analysis and simulation of the human thermoregulatory control system

    The paper describes a study into one aspect of the thermoregulatory control system in man. An analysis of this control system led to the hypothesis that thermoregulation in humans is achieved by two basic cont...

    R. I. Kitney in Medical and biological engineering (1974)

  2. No Access

    Article

    Measurement of heart-rate variability: Part 1—Comparative study of heart-rate variability analysis methods

    A definition of heart-rate variability (h.r.v.) is given. The use of h.r.v. measurement in both clinical applications and the neural cardiovascular research is discussed. For the latter applications, four diff...

    O. Rompelman, A. J. R. M. Coenen… in Medical and Biological Engineering and Com… (1977)

  3. No Access

    Article

    Measurement of heart-rate variability: Part 2-hardware digital device for the assessment of heart-rate variability

    Part 1 of the paper was dedicated to some general aspects of h.r.v. measurements. In Part 2, the spectral properties of the integral pulse frequency modulator (i.p.f.m.) are shown. The choice of a hardware dev...

    A. J. R. M. Coenen, O. Rompelman… in Medical and Biological Engineering and Com… (1977)

  4. No Access

    Article

    Matching techniques for clinical models of the circulation

    Several models of the circulation have been developed in physiological research. Such models can be matched to patient measurements and then used as a clinical diagnostic tool. We have examined methods for mat...

    P. R. Bourne, R. I. Kitney in Medical and Biological Engineering and Computing (1978)

  5. No Access

    Article

    Raster-scan method for observing physiological entrainment phenomena

    A simple raster-scan display, using a small interactive microcomputer with graphics capability, is described and gives visual indication of various entrainment-type phenomena. In particular, almostentrainment ...

    D. A. Linkens, R. I. Kitney, O. Rompelman in Medical and Biological Engineering and Com… (1982)

  6. No Access

    Article

    Calibration of entrainment raster scans

    D. A. Linkens, R. I. Kitney, O. Rompelman in Medical and Biological Engineering and Com… (1983)

  7. No Access

    Article

    Comparison of computer models of the human arterial system for the assessment of clinical data

    Arterial pressure and flow measurements can be analysed using a mathematical model of the circulation. A comparison of four models of the circulation used in this way is presented. The results indicate some cr...

    P. R. Bourne, R. I. Kitney in Medical and Biological Engineering and Computing (1983)

  8. No Access

    Article

    Biomedical signal processing (in four parts)

    This is the first of a series of four tutorial papers on biomedical signal processing. It provides an introduction to terminology and basic ideas for testing for randomness and trend, and for the determination...

    Professor R. E. Challis, R. I. Kitney in Medical and Biological Engineering and Computing (1990)

  9. No Access

    Article

    Biomedical signal processing (in four parts)

    This is the second in a series of four tutorial papers on biomedical signal processing, and it concerns the relationships between commonly used frequency transforms. It begins with the Fourier series and Fouri...

    Professor R. E. Challis, R. I. Kitney in Medical and Biological Engineering and Computing (1991)

  10. No Access

    Article

    Biomedical signal processing (in four parts)

    This is the third in a series of four tutorial papers on biomedical signal processing and concerns the estimation of the power spectrum (PS) and coherence function (CF) od biomedical data. The PS is introduced...

    R. E. Challis, R. I. Kitney in Medical and Biological Engineering and Computing (1991)

  11. No Access

    Article

    Object-based three-dimensional X-ray imaging

    A form of three-dimensional X-ray imaging, called Object 3-D, is introduced, where the relevant subject material is represented as discrete ‘objects’. The surface of each such object is derived accurately from...

    R. Benjamin, S. Prakoonwit, I. Matalas… in Medical and Biological Engineering and Com… (1996)

  12. No Access

    Article

    Transient phase locking patterns among respiration, heart rate and blood pressure during cardiorespiratory synchronisation in humans

    The interactions between respiration, heart rate and blood pressure variability (HRV, BPV), are considered to be of paramount importance for the study of the functional organisation of the autonomic nervous sy...

    Ms F. Censi, G. Calcagnini, S. Lino… in Medical and Biological Engineering and Com… (2000)