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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Biomedical Engineering Research
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Journal DOI :
The Korea Society of Medical and Biological Engineering
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Volume & Issues
Volume 3, Issue 2 - Dec 1982
Volume 3, Issue 1 - Jun 1982
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Computer Simulation of the Electric Potential Distribution of Human Cross Section
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 65~70
This paper presents a new method of solving the electric potential distribution using the finite element method. The thoracic region surrounded by the body surface and the heart is discretized into finite elements and the Continuous Laplace-equation is transformed into one of the finite degrees of freedom. The current source density, the conductivity, and the excitable range is obtained by the references. From the result of simulation, it was revealed that the potential pattern of in homogeneity was much different from that of homogeneity.
Study on the 316LVM Stainless Steel for Surgical Implant Materials
Sin, Myeong-Cheol ; Lee, Gyu-Hwan ; Lee, Han-Gu ;
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 71~82
The 316LVM stainless steel that is widely used in surgical implant has been studied. The objective of this study is to develop the domestic production of the surgical implant materials. In the work, the metalllirgical phenomena, physical and chemical properties and biocompatibility of the materials are investigated. According to the experimental observation, corrosion resistance is strongly depended on the -ferrite structure and passive film, and mechanical properties are mainly depended on the cold reduction ratio. The -ferrite structure is minimized in the 16.651 Cr and 14%Ni contents, and yield strength is 104 kg/mm
at 45% cold reduction. Biocompatibility is excellent in the mouse body test for six weeks.
Computer Algorithm for the Automatic Diagnosis ECG
An, Jae-Bong ; Yun, Hyeong-Ro ; Lee, Myeong-Ho ;
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 83~94
This paper presents a practical approach to develop computer algorithm for automatic diagnosis electrocardiogram(ECG) based on a decision table techniques.
Glucose Analysis Using Free and Immobilized Glucose Oxidase Electrode
Jang, Ho-Nam ; Ju, Dae-Gwon ; Kim, Yeong-Seong ;
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 95~100
Glucose oxidase from A. niger was entrapped in polyacrylamide gel which was used in the enzyme electrode for glucose analysis. The electrode was assembled by placing the gel between the membranes on the surface of a Clark type electrode. In order to make it possible to analyze the experimental results later, the stagnation flow was adopted wheree the governing fluid mechanics were well known. The current increased with the increase concentration in the bulk below a certain level of glucose concentration beyond which no more current increase was observed. This is probably due to the diffusion limitation of oxygen from the bulk solution. Also the current increased witll the enzyme loading in the gel, but the linearity between the current and the glucose concentration was rather limited to a narrow range. Flow rate was found to be very important, which means that film diffusion is very important under the flow rate of 5cm/sec. As a conclusion, enzyme loading, gel layer thickness, stirring speed and bulk concentration of glucose were found to be most improtant parameters in yielding a linar current reponse with respect to the bulk glucose concentration.
The Syncronization Phenomena and Its Model of Myocardial Cells
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 101~104
Even one embryonic myocardial cell exhibits a spontaneous, periodic beating phenomena. When these cells come in contact with each other, they beat synchronously with a certain period. In this paper, the mechanism of this phenomena is investigated, and the synchronization model is presented. The physiological experimental results are compared with the simulated results of the model.
Effects of Carrier Wave on the Brain Stem Electric Response (BER) in Scala Tympanic Electrode Array
Duck-Hwann Lim ; Byu ;
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 105~112
Using electronic cochlear implant system, we studied in cats the difference in the response of the brain stem evoked response (BER) during the stimulation with the acoustic signals and the electric signals. These brain stem electric responses were analyzed using the integral pulse frequency modulation method of the auditory nervous system. Animal experimental results and the analysis show that the carrier wave hasimprored the frequency specificity. of the electronic auditory prosthesis.
A Design of the Telemetry Transmitter for Monitoring Exercise Electrocardiogram
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 113~118
This paper presents a frequency modulated radio-telemetry, transmitter for monitoring and transmitting an exercise electrocardiogram (ECG) and respiration activity simultaneously on single carrier frequency in the standard FM broadcast band of 88-108 MHz. We have evaluated the performance of the FM telemetry transmitter which is proposed on the basis of an exercise ECG test in the treadmill.
The Principle of the NMR Image
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 119~122
This paper presents the principles of image formation in NMR(Nuclear Magnetic Resonance) tomography. NMR tomographic imaging is a newly emerging, noninvasive, three-dimensional imaging technique. This new technique is an interdisciplinary science which encompasses the latest technologies in electrical, electronics, computers, physics, chemistry, mathematics, and medical sciences.
A Study on the Development of Electrocardiography GSM 110A
Lee, Heung-Kyu ; Hahm, Young-Wook ; Kim, Yong-Man ;
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 123~130
In this paper, Electrocardiography principles and design philosophy are discussed. 1-channel portable automatic ECG amplifier, GSM 110A has high reliability, performance and safety. It reveals that GSM 110A satisfies the IEC, VDE standards. Clinical tests are performed and proved its performance and ease of use.
The Domestic Development of 1 Channel EKG Monitor
Journal of Biomedical Engineering Research, volume 3, issue 2, 1982, Pages 131~134
We have successfully developed and produced 1 Channel EKG Monitor for operating room and ICU. Its safety, reliability and performance have been proved by clinical experiments in 10 hospitals during 4 months.