IEEE Transactions on Biomedical Engineering

Issue 2 • April 1970

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Displaying Results 1 - 25 of 25
  • Table of contents

    Publication Year: 1970, Page(s): c1
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  • IEEE Engineering in Medicine and Biology Group

    Publication Year: 1970, Page(s): c2
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  • Human Factors Underlying the Design of Reading Aids for the Blind

    Publication Year: 1970, Page(s):97 - 100
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1596 KB)

    The design of low-cost devices, which will sense and encode a printed page in such a way that the unfamiliar output can be learned, perceived, and readily understood by a blind person, poses fundamental questions about the information processing capabilities of the human brain for which there are at present no clear answers. To circumvent these difficulties at the sacrifice of low cost, machines-s... View full abstract»

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  • Ultrasonic Method for Measuring Elastic Coefficients of Bone and Results on Fresh and Dried Bovine Bones

    Publication Year: 1970, Page(s):101 - 105
    Cited by:  Papers (120)  |  Patents (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2196 KB)

    The elastic stiffness coefficients of dried bovine phalanx and femur and of fresh bovine phalanx were measured by an ultrasonic technique. An analysis of the electrical behavior and the crystallographic and morphological character of bone showed that it is a texture which has the same form of the elastic coefficient matrix as a hexagonal single crystal. The five elastic stiffness coefficients of f... View full abstract»

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  • A Quantitative Study of Biological Form

    Publication Year: 1970, Page(s):106 - 108
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1666 KB)

    The technique of analytical photogrammetry has been applied to the problem of precisely specifying some of the spatial features of the growing mouse. In particular, the surface area and volume have been determined, and contour maps prepared. It is shown that the variations in weight, surface area, and volume are well represented by third-order polynomials. View full abstract»

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  • An Inductive Conductivity Meter for Monitoring the Salinity of Dialysis Water

    Publication Year: 1970, Page(s):109 - 117
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3572 KB)

    An inductive conductivity meter is described, especially adapted as a salinity monitor for dialysis water. Salinity are given. The principal problems of the inductive conductivity meter result from the low conductivity of electrolytes. The weak coupling due to the electrolyte means that stray coupling must be reduced to a very low level. This has been accomplished by means of a heavy copper eddy-c... View full abstract»

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  • A Time-Sharing Instrument for Direct Readout of Oxidation-Reduction States in Intracellular Compartments of Cardiac Tissue

    Publication Year: 1970, Page(s):118 - 121
    Cited by:  Papers (13)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2053 KB)

    Internal fluorochromes and chromophores afford the possibility of a continuous, nondestructive readout of biochemical information from complex systems such as intact organs. An instrument has been constructed which allows simultaneous observation of fluorescence emission from reduced pyridine nucleotides [NAD(P)H] and certain oxidized flavoproteins together with dual wavelength absorption measurem... View full abstract»

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  • Optical Transmission and Reflection by Blood

    Publication Year: 1970, Page(s):122 - 128
    Cited by:  Papers (40)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1879 KB)

    The results of calculations which use diffusion equations for photons to calculate optical transmission and backscattering by whole blood will be compared with a variety of published data. The purpose of this work is to demonstrate the usefulness of the diffusion theory approach to the optics of blood and to present information concerning the dependence of the scattering and absorption parameters ... View full abstract»

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  • Optical Diffusion in Blood

    Publication Year: 1970, Page(s):129 - 133
    Cited by:  Papers (52)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2462 KB)

    Light is absorbed and scattered by whole blood. At very low hematocrit values scattering is small, but for hematocrit ≧0.05 light patterns in blood indicate that scattered photons obey the diffusion equations. Diffusion theory predicts the circular light patterns observed in normal whole blood. Transmittance measurements by small fiberoptic probes in a blood medium give data which are in go... View full abstract»

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  • Selective Cerebral Catheterization

    Publication Year: 1970, Page(s):134 - 140
    Cited by:  Papers (11)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3343 KB)

    This paper describes a new method for selective cerebral catheterization based on the Pod catheter [6], [7], guided and propelled by means of external magnetic fields. The principles of the Pod catheter, and the necessary equipment are described, and conclusions are drawn from experiments with a glass model. The middle cerebral artery was catheterized selectively, and cytotoxic material was inject... View full abstract»

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  • Effect of Inhomogeneities on the Apparent Location and Magnitude of a Cardiac Current Dipole Source

    Publication Year: 1970, Page(s):141 - 146
    Cited by:  Papers (63)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2065 KB)

    A mathematical model was used to investigate the effects of electrical inhomogeneities introduced by the intracavitary blood mass and the lungs on the apparent location and magnitude of a current dipole source representing local activity in the myocardium. Radial and tangential current source moments were considered, and lung conductivity was taken as a variable parameter. Both the blood mass and ... View full abstract»

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  • On-Line Real-Time Digital Computer Separation of Extracellular Neuroelectric Signals

    Publication Year: 1970, Page(s):147 - 150
    Cited by:  Papers (45)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1872 KB)

    An on-line real-time spike recognition and separation system for up to six different spikes in multiple unit extracellular records has been developed using the Micro-LINC 300 computer. Assuming biphasic potentials, the computer extracts four unambiguous variables, two in amplitude and two in time. One variable of a selected pair is plotted against the other on the computer CRT. Points representing... View full abstract»

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  • A Multi-Channel Pulse-Coded Multiplexing and Demodulating Telemetry System

    Publication Year: 1970, Page(s):151 - 156
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2746 KB)

    A multiplexing, demodulating, and recording telemetry system designed to process multiple pulse-coded temperature channels is described. The system provides complete control of recording and multiplexing sequences and timing, and gives a single analog signal in response to each sample of pulse-coded data. It identifies all channels and indicates to a computer when a new data sample is to be proces... View full abstract»

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  • A Speech Read-Only Memory Store for Blind Programmers

    Publication Year: 1970, Page(s):157 - 158
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (595 KB)

    The employment of a read-only memory store as a storage medium for limited speech vocabularies is described. The device, along with an electronics interface, is intended to serve as a remote speech output system driven by an ordinary teletype or key-punch without computer control. The use of such a stored vocabulary as a sensory aid for the blind is outlined. View full abstract»

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  • An Experimental Personal Reading Machine for the Blind

    Publication Year: 1970, Page(s):158 - 161
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2659 KB)

    An experimental character recognition system is described. The system is intended to aid in the design of an inexpensive, personal reading machine for the blind. Both aural and tactile output modes are provided. The aural mode consists of a spelled-speech unit; the tactile mode provides a Braille output. View full abstract»

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  • A New Approach to the Cross-Neutralized Microelectrode Amplifier

    Publication Year: 1970, Page(s):161 - 163
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2253 KB)

    A circuit is described that produces capacitance neutralization for double barreled microelectrodes. One adjustment compensates for mutual capacitance between electrodes, while the other two adjustments neutralize the capacitance to ground of each electrode. View full abstract»

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  • A Transdermor with Reentrant Capability

    Publication Year: 1970, Page(s): 163
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (952 KB)

    A device is described which permits transducer insertion through the skin. A continuous teflon loop is used for the entrant tube which does not require bonding. View full abstract»

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  • A Safe Method of Signal Acquisition in Hospitals

    Publication Year: 1970, Page(s):163 - 166
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2294 KB)

    This short communication describes a simple inexpensive instrument employing optical coupling which eliminates electrical shock hazards to hospital patients during signal acquisition. View full abstract»

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  • Miniature Battery Condition Test

    Publication Year: 1970, Page(s): 167
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    A miniature battery condition test based on short-circuit current is described. Results of a statistical analysis along with specific values of short-circuit currents for three cell types are presented. View full abstract»

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  • Symposium on Global Systems Dynamics

    Publication Year: 1970, Page(s):168 - 169
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  • The International Conference on Bioelectrical Impedance

    Publication Year: 1970, Page(s):169 - 170
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  • Abstracts of dissertations

    Publication Year: 1970, Page(s):171 - 175
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  • Keyword Abstracts

    Publication Year: 1970, Page(s):176 - 183
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  • IEEE Transactions on Bio-Medical Engineering Statement of Editorial Policy

    Publication Year: 1970, Page(s): 183-a
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  • Institutional listings

    Publication Year: 1970, Page(s): 183-b
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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