# IEEE Transactions on Biomedical Engineering

## Filter Results

Displaying Results 1 - 22 of 22

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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• ### Standards for medical instrumentation

Publication Year: 1970, Page(s): 185
Cited by:  Papers (1)
| |PDF (201 KB)

First Page of the Article
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• ### On the Transparency of the Stroma in the Mammalian Cornea

Publication Year: 1970, Page(s):186 - 190
Cited by:  Papers (30)
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This paper discusses the transparency of the normal mammalian cornea with particular reference to the scattering of light from the fibril structure in the stroma. It is shown theoretically that Maurice's fibril-lattice model would allow about 50Å rms isotropic fibril displacements from the ideal lattice positions to produce one percent scatter. This theoretically acceptable disorder seems to ... View full abstract»

• ### Thoracic Impedance Gradient with Respect to Breathing

Publication Year: 1970, Page(s):191 - 198
Cited by:  Papers (9)
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The transthoracic mutual-impedance responses to lung ventilation were measured for 37 normal subjects with 14 orthogonal lead systems. Spatial intravariability resulted from small errors in electrode placement on the thoracic surface. Temporal intravariability was determined by repeating the measurements for one subject on five consecutive days. Insignificant correlation coefficients were obtained... View full abstract»

• ### Analysis of Three-Dimensional Flow Birefringence Models, with a Note on the Effects of Catheters and Needles on Vessel Flow

Publication Year: 1970, Page(s):199 - 206
Cited by:  Papers (5)
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Flow birefringence is a convenient and useful technique for studying the initiation and propagation of fluid disturbances in transparent models of the cardiovascular system. Prior quantitative work has been restricted to analysis of two-dimensional systems using shallow channels. The theory of flow birefringence is discussed and a technique for analysis of three-dimensional models is proposed. View full abstract»

• ### Miniaturized Pressure Transducer Intended for Intravascular Use

Publication Year: 1970, Page(s):207 - 219
Cited by:  Papers (22)  |  Patents (2)
| |PDF (3934 KB)

A pressure transducer utilizing an electrooptical method is described. As the transducer is primarily intended for intravascular use, it has been given the form of a catheter with the pressure-sensing part at the one end and the necessary bulky components at the other end. A light guide of glass fibers inside the catheter transports light from a light source to the measuring tip. Here the pressure... View full abstract»

• ### The Thermal-Chemical Damage in Biological Material under Laser Irradiation

Publication Year: 1970, Page(s):220 - 229
Cited by:  Papers (30)
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A mathematical model for thermal-chemical damage to biological materials excited by laser irradiation is described. The chemical rate equations for protein denaturization are used to predict radii of damage for cases where the input-laser-energy distribution results in the uniform heating of a small sphere or a disk. These rate equations are limited to a single-hit process. Experimental checks on ... View full abstract»

• ### The Investigation of the Behavior of Microorganisms by Computerized Television

Publication Year: 1970, Page(s):230 - 237
Cited by:  Papers (12)
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Instrumentation is described which permits, along with simultaneous subjective observation, the rapid recording and quantification of the overt behavior of motile microorganisms under varying conditions. From a chain of standard commercially available units (with the exception of a single especially designed one) there has emerged a totality which provides unique advantages to the student of overt... View full abstract»

• ### An Integrated-Circuit Approach to Extracellular Microelectrodes

Publication Year: 1970, Page(s):238 - 247
Cited by:  Papers (225)  |  Patents (23)
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This paper describes a new multielectrode microprobe which utilizes integrated-circuit fabrication techniques to overcome many of the problems associated with conventional microelectrodes. The probe structure consists of an array of gold electrodes which are supported on a silicon carrier and which project beyond the carrier for a distance of about 50 μ to allow a close approach to active ... View full abstract»

• ### A Flexible Neural Analog Using Integrated Circuits

Publication Year: 1970, Page(s):248 - 253
Cited by:  Papers (63)
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An electronic neural analog is described which contains variable absolute and relative refractory periods, two time constants, and separate control of the accommodation'' to sub-threshold voltage changes and the adaptation'' produced by the occurrence of output pulses (spikes). The extensive use of integrated-circuit operational amplifiers permits an accurate description of input-output relati... View full abstract»

• ### Automated Measurement of the Internal Surface Area of the Human Lung

Publication Year: 1970, Page(s):254 - 262
Cited by:  Papers (5)
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This paper presents a technique whereby emphysema can be objectively graded by means of computerized image processing. Emphysema is a common disease affecting human lungs and is characterized by enlargement and destruction of the gas-exchanging portion of the lung, namely alveolar air sacs. This destruction of alveoli results in loss of alveolar surface area. View full abstract»

• ### Present State of an Ultrasonic Cross-Section Procedure with Rapid Image Rate

Publication Year: 1970, Page(s):263 - 265
Cited by:  Papers (5)
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The scan unit attains a rapid-image rate by rotating the sound source at a frequency of about 16 Hz in the focal point of an acoustic cylindrical paraboloid mirror. By this arrangement a scanning beam is obtained that moves with a speed of about 2 m/s transverse to the direction of propagation of the ultrasound. This scanning speed permits the buildup of a sectional image within about 60 ms with a... View full abstract»

• ### A Possible Procedure to Calculate Correlation Functions for the EEG

Publication Year: 1970, Page(s):265 - 267
Cited by:  Papers (1)
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Usually, the correlation function is obtained by using pure delay elements which are difficult to synthesize on an analog computer. In this paper a calculation procedure which approximates the correlation function by a polynomial is proposed. This procedure, based on an identification method developed by Izawa and Furuta ll, does not require any pure delay element but rather a bank of simple filte... View full abstract»

• ### Integrated-Circuit Analog Multiplexer

Publication Year: 1970, Page(s):267 - 268
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An analog multiplexer which allows several data channels to share the available bandwidth of one channel of an analog tape recorder is described. The method involves demodulation by correlating with a separately recorded carrier. Inexpensive integrated circuits are the only active elements. View full abstract»

• ### Limitations and Difficulties in Signal Processing by Means of the Principal-Components Analysis

Publication Year: 1970, Page(s):268 - 269
Cited by:  Papers (18)  |  Patents (5)
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Principal-components analysis is sometimes used in analysis of biophysical signals. Because the expansion coefficients obtained in this analysis have the property that they are uncorrelated, several authors made the extrapolation that the eigenfunctions of the covariance matrix, which also result from the principal- components analysis, correspond to independent physiological generators. By means ... View full abstract»

• ### Correction to "Sinusoidal burst generator for auditory evoked response research''

Publication Year: 1970, Page(s): 269
| |PDF (297 KB)

Summary form only given, as follows. In a recent short communication named above (ibid., vol. BME-17, pp. 74-76, January 1970), there are several corrections to be made in the figures. In Fig. 1, page 75, in the base circuit of Q4 of the modulator, the 6.8 kΩ resistor, presently returned to -12 volts, should have been returned to ground. The junction of the 2 kΩ resistor in the Q4 ... View full abstract»

• ### Comment on "A Mathematical Model for the Pressure-Flow Relationship in a Segment of Vein" [Letters to the editor]

Publication Year: 1970, Page(s):270 - 271
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First Page of the Article
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• ### Abstracts of dissertations

Publication Year: 1970, Page(s):272 - 273
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• ### Keyword Abstracts

Publication Year: 1970, Page(s):274 - 279
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• ### IEEE Transactions on Bio-Medical Engineering Statement of Editorial Policy

Publication Year: 1970, Page(s): 279-a
| |PDF (163 KB)
• ### Institutional listings

Publication Year: 1970, Page(s): 279-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