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IEEE Transactions on Biomedical Engineering

Issue 11 • Date Nov. 1983

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Displaying Results 1 - 21 of 21
  • IEEE Transactions on Biomedical Engineering - Table of contents

    Publication Year: 1983, Page(s): c1
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  • IEEE Engineering in Medicine and Biology Society

    Publication Year: 1983, Page(s): c2
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  • A Qualitative Discussion of Mechanisms of Feedback and Feedforward in the Control of Locomotion

    Publication Year: 1983, Page(s):681 - 689
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3260 KB)

    A brief discussion of the kinematics and dynamics of biped locomotion is provided. A number of elementary control problems are presented that include breaking or making contact with the environment, in addition to the conventional reflex and point-to-point movements. For this class of control problems, available mathematical methods of maintaining or breaking the support are surveyed, and these re... View full abstract»

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  • New Microprocessor-Based Insulin Controller

    Publication Year: 1983, Page(s):689 - 695
    Cited by:  Papers (6)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6389 KB)

    We have previously defined the requirements of an elegant, simple waveform for intravenous insulin delivery in insulin-dependent diabetes [7]. This waveform consists of a constant basal rate and three sequential pulses which are adapted for each meal. Under the direction of a diabetologist, the basal rate is adjusted for fasting normal blood glucose levels, and the meal pulses are configured accor... View full abstract»

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  • On a Population of Labile Synthesized Relaxation Oscillators

    Publication Year: 1983, Page(s):696 - 701
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1968 KB)

    A labile synthesized relaxation oscillator (SRO), exhibiting rhythmic activity when excited by an appropriate stimulus, is proposed. Such an oscillator can be used to represent a stimulus-dependent (or labile) biological rhythm. A population of coupled labile SRO's is investigated and its generic equation is presented. The relationship between an input stimulus and an output rhythmic activity of a... View full abstract»

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  • Characterization of Flow in Intravenous Infusion Systems

    Publication Year: 1983, Page(s):702 - 707
    Cited by:  Papers (16)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3568 KB)

    The pressure-flow (P-F) relationship for intravenous infusion systems is found to be nonlinear, and may be expressed by the mathematical model P = RLF + RTF2. The parameters RL and RT both show linear increase with tubing length. Devices have been identified with an isolated effect on RL (5 ¿fiter) or on RT (check valve). The total RL and RT of an infusion system may be obtained by adding the RL ... View full abstract»

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  • An Inhomogeneous Thermal Block Model of Man for the Electromagnetic Environment

    Publication Year: 1983, Page(s):707 - 715
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4088 KB)

    An inhomogeneous thermal block model of man with 476 cubical cells has been developed. It incorporates inhomogeneous blood flow rates, metabolic heat production, specific heats, and thermal conductivities, obtained by volume-weighted averaging of the values for eleven different tissue types which constitute the human body. The transient heat conduction equation for the thermal model includes the e... View full abstract»

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  • Quantification of Regional Myocardial Perfusion by Exponential Infusion of 11C-Butanol

    Publication Year: 1983, Page(s):716 - 722
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2399 KB)

    This study was designed to determine whether regional myocardial perfusion can be assessed quantitatively in vivo in dogs by administration of a freely diffusible tracer intravenously at an exponentially increasing-rate. Previously, we reported the mathematical basis of the approach and its use for assessment of global perfusion in isolated hearts. In this study, computer simulations demonstrated ... View full abstract»

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  • Scan-Along Polygonal Approximation for Data Compression of Electrocardiograms

    Publication Year: 1983, Page(s):723 - 729
    Cited by:  Papers (56)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2216 KB)

    Three fast and efficient "scan-along" algorithms for compressing digitized electrocardiographic data are described. These algorithms are "scan-along" in the sense that they produce the compressed data in real time as the electrocardiogram is generated. The algorithms are based on the minimum perimeter polygonal approximation for digitized curves. The approximation restricts the maximum error to be... View full abstract»

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  • Optimum Filters for Estimating Evoked Potential Waveforms

    Publication Year: 1983, Page(s):730 - 737
    Cited by:  Papers (37)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2561 KB)

    The design of time-invariant and time-varying minimum mean square error filters for processing event related brain potentials is considered. A model for taking into account the randomness associated with the signal as well as that of the noise is described. Results using simulated data show the perfonnance of the time-varying filter to be greatly superior to that of the time-invariant filter. Resu... View full abstract»

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  • Calorimetric Measurement of the Energy Fluence of Diagnostic X-Ray Beams

    Publication Year: 1983, Page(s):737 - 741
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3371 KB)

    A method for measurement of the energy fluence of diagnostic X-ray beams is described, using total absorption calorimetry. Optimization of the absorbing element is discussed quantitatively, and it is shown that a lead plate of 1 mm is as sensitive as gold or platinum absorbers. Using Styrofoam insulation, semiadiabatic conditions pertain during the measurement time of 2-6 s. Use of the method is i... View full abstract»

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  • Estimation of Motor Unit Twitches

    Publication Year: 1983, Page(s):742 - 748
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2576 KB)

    This study deals with estimation of the mechanical twitch of a single motor unit in human muscle during voluntary contraction. The existing estimation method is based on averaging of the force produced by the whole muscle, using the motor unit action potential for triggering. This method leads to underestimation of twitch amplitude and rise time due to partial fusion of the twitches, even at the l... View full abstract»

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  • Limitation of the Inverse Problem in Body Surface Potential Mapping

    Publication Year: 1983, Page(s):749 - 754
    Cited by:  Papers (33)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2074 KB)

    The inverse problem in electrocardiography is ill-conditioned, and small noise included in the measured potentials causes large errors in the solution. Since the inverse problem is mostly described as a linear problem, the entire problem has often been treated in terms of a transfer matrix. The degree of linear independence among the vectors in the transfer matrix, which is directly related to the... View full abstract»

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  • Laryngeal Evaluation Using Features from Speech and the Electroglottograph

    Publication Year: 1983, Page(s):755 - 759
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1094 KB)

    Signal processing techniques were utilized to discriminate speakers with laryngeal pathology from a normal population. Classical periodicity analyses and discriminant analyses were performed separately on a set of features extracted from two data sets taken from both subject populations. The two data sets consisted of the acoustic and electroglottographic signals recorded simultaneously during an ... View full abstract»

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  • Evaluation of a Multifunctional Hand Prosthesis System Using EMG Controlled Animation

    Publication Year: 1983, Page(s):759 - 763
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3080 KB)

    In this communication, we present an on-line real-time simulation system used to evaluate a new method of controlling a multifunctional hand prosthesis. The system employs two computers. Acquisition, analysis, and classification of EMG signals are performed by a minicomputer, and the animation model of the hand prosthesis which is displayed on a monitor TV is controlled by a microcomputer. From th... View full abstract»

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  • Comments on "Dynamics of Gaseous Uptake from the Lungs: The Concentration and Second Gas Effects"

    Publication Year: 1983, Page(s):763 - 764
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1583 KB)

    This comment points out discrepancies between the concentration effect reported in the anesthesiology literature and the model presented in the above paper1 by Poon et al. which attempts to explain it. The difference between the faster kinetics reported for high concentrations of anesthetic gas and the slower kinetics seen in the Poon model is explained. View full abstract»

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  • Author's Reply2

    Publication Year: 1983, Page(s):764 - 766
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    The discrepancies Lewis suggested in the comments on my paper1 are due to incongruous premises. The inconsistencies between Lewis' paper and current literature are noted, and the theoretical implications of the predicted system dynamics are further expounded. View full abstract»

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  • Call for Papers

    Publication Year: 1983, Page(s): 767
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  • Call for Papers Special Issue on Software for Medical Care and Medical Science

    Publication Year: 1983, Page(s): 768
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  • IEEE Transactions on Biomedical Engineering Statement of Editorial policy

    Publication Year: 1983, Page(s): 768-a
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  • Institutional listings

    Publication Year: 1983, Page(s): 768b
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Aims & Scope

IEEE Transactions on Biomedical Engineering contains basic and applied papers dealing with biomedical engineering. Papers range from engineering development in methods and techniques with biomedical applications to experimental and clinical investigations with engineering contributions.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Bin He
University of Minnesota