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IRE transactions on bio-medical electronics最新文献

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The Scope of the BME Transactions BME交易的范围
IRE transactions on bio-medical electronics Pub Date : 1963-10-01 DOI: 10.1109/TBMEL.1963.4322820
E. MacNichol
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引用次数: 0
Single-Coil Coreless Electromagnetic Blood-Flow Meters 单线圈无芯电磁血流量计
IRE transactions on bio-medical electronics Pub Date : 1963-04-01 DOI: 10.1109/TBMEL.1963.4322792
A. Kolin, R. Wisshaupt
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引用次数: 16
The Development of the Electro-Magnetic Blood Flowmeter 电磁血液流量计的研制
IRE transactions on bio-medical electronics Pub Date : 1962-10-01 DOI: 10.1109/TBMEL.1962.4323014
K. Jochim
{"title":"The Development of the Electro-Magnetic Blood Flowmeter","authors":"K. Jochim","doi":"10.1109/TBMEL.1962.4323014","DOIUrl":"https://doi.org/10.1109/TBMEL.1962.4323014","url":null,"abstract":"Electromagnetic blood flowmeters were first constructed and used by Kolin in 1936 and, independently, by Wetterer in 1937. These early instruments consisted essentially of a large dc electromagnet, a pair of electrodes, and a string galvanometer; they made possible the recording of flow in exposed, large arteries of anesthetized animals under stringent experimental conditions. Modern electromagnetic flowmeters, using tiny, surgically implantable magnet-electrode assemblies and complex-electronic circuits, permit the recording of instantaneous and mean flows in large and small arteries in unanesthetized animals engaged in ordinary activities, as well as in anesthetized human patients whose vessels are exposed during surgical operations. Major steps in the development of the modern flowmeter include: 1) the early use of a sinusoidal ac-excited magnet to obviate the use of direct-coupled amplifiers and cumbersome, nonpolarizable electrodes; 2) the development of demodulation techniques for eliminating from the ac signal those induced voltages unrelated to flow: 3) the introduction of the squarewave and triangular-wave excited magnet to facilitate such signal-from-noise separation; 4) the miniaturization of magnetelectrode assemblies suitable for surgical implantation; and 5) improvements in circuitry resulting in greater electrical stability and freedom from noise.","PeriodicalId":86470,"journal":{"name":"IRE transactions on bio-medical electronics","volume":"9 1","pages":"228-235"},"PeriodicalIF":0.0,"publicationDate":"1962-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TBMEL.1962.4323014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62994555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Analog Computer Studies of Periodic Breathing 周期性呼吸的模拟计算机研究
IRE transactions on bio-medical electronics Pub Date : 1962-10-01 DOI: 10.1109/TBMEL.1962.4323013
J. D. Horgan, D. Lange
{"title":"Analog Computer Studies of Periodic Breathing","authors":"J. D. Horgan, D. Lange","doi":"10.1109/TBMEL.1962.4323013","DOIUrl":"https://doi.org/10.1109/TBMEL.1962.4323013","url":null,"abstract":"A classical clinical experiment, in which periodic breathing is induced in a normal subject by hyperventilation, has been successfully simulated on the high speed analog computer. The model, together with its underlying theory, is presented. Its applications to the study of individuals who experience persistent periodic (Cheyne-Stokes) breathing is indicated.","PeriodicalId":86470,"journal":{"name":"IRE transactions on bio-medical electronics","volume":"9 1","pages":"221-228"},"PeriodicalIF":0.0,"publicationDate":"1962-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TBMEL.1962.4323013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62994784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 34
A Sensitive Contact Lens Photoelectric Eye Movement Recorder 一种灵敏隐形眼镜光电眼动记录仪
IRE transactions on bio-medical electronics Pub Date : 1962-10-01 DOI: 10.1109/TBMEL.1962.4323015
G. Byford
{"title":"A Sensitive Contact Lens Photoelectric Eye Movement Recorder","authors":"G. Byford","doi":"10.1109/TBMEL.1962.4323015","DOIUrl":"https://doi.org/10.1109/TBMEL.1962.4323015","url":null,"abstract":"A contact lens photoelectric eye movement recording system is described. The transducer is carried on a dental bite and the subject is permitted freedom of movement within the limitations of a trailing HT and signal lead, reasonable ambient illumination is permissible. Sensitivities of the order of 40-sec arc/cm of trace deflection are readily obtainable, with a dynamic range in excess of 56 db. Although primarily designed as a device for measuring the movements of eyes, the technique has been used for other purposes where it is required to measure displacement without loading the moving member.","PeriodicalId":86470,"journal":{"name":"IRE transactions on bio-medical electronics","volume":"9 1","pages":"236-243"},"PeriodicalIF":0.0,"publicationDate":"1962-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TBMEL.1962.4323015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62994625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
The Intrinsic Component Theory of Electrocardiography 心电图本征成分理论
IRE transactions on bio-medical electronics Pub Date : 1962-10-01 DOI: 10.1109/TBMEL.1962.4323012
T. Young, W. Huggins
{"title":"The Intrinsic Component Theory of Electrocardiography","authors":"T. Young, W. Huggins","doi":"10.1109/TBMEL.1962.4323012","DOIUrl":"https://doi.org/10.1109/TBMEL.1962.4323012","url":null,"abstract":"A new theory, the intrinsic component theory, is proposed for electrocardiography. This theory is based on the temporal characteristics rather than spatial orientations of the current sources and sinks in the heart. The theory may be stated as follows: the electrical activities of the heart may be decomposed into spatially nonorthogonal, stationary sets of current sources and sinks. The time variations of the magnitudes of all the sources and sinks belonging to the same set follow a single pattern of an intrinsic component which is orthogonal (uncorrelated) in the time domain to all other intrinsic components. The physical interpretation of intrinsic components is new to electrocardiography, although the mathematical tool employed is the well-known eigenvalue process. The intrinsic component theory, applied to a single dipole, provides us with a mathematical foundation for vectorcardiogram rotation, and a better basis for pathological ECG comparison and classification, especially by digital computers.","PeriodicalId":86470,"journal":{"name":"IRE transactions on bio-medical electronics","volume":"9 1","pages":"214-221"},"PeriodicalIF":0.0,"publicationDate":"1962-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TBMEL.1962.4323012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62994721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 43
The SETAR and Its Uses for Recording Physiological and Behavioral Data SETAR及其用于记录生理和行为数据的用途
IRE transactions on bio-medical electronics Pub Date : 1962-07-01 DOI: 10.1109/TBMEL.1962.4322996
N. T. Welford
{"title":"The SETAR and Its Uses for Recording Physiological and Behavioral Data","authors":"N. T. Welford","doi":"10.1109/TBMEL.1962.4322996","DOIUrl":"https://doi.org/10.1109/TBMEL.1962.4322996","url":null,"abstract":"The SETAR (Serial Event Timer and Recorder) is an electronic digital elapsed-time recorder with punched paper tape output. It is a multichannel machine and will time and record the occurrence of successive events within a single channel or between different channels. An event is anything which will make or break one or more of the input circuits. The SETAR can directly record behavioral variables, such as reaction times and intertrial intervals and any physiological variables available as time measures, such as heart rate recorded from successive R-R intervals. The present machine will record in looths of a second and take readings up to ten times per second. Due to internal buffer storage three readings may be made at rates up to 100 per second. Events separated by less than 100th of a second are recorded as though they were simultaneous. The principles of operation of the machine and its methods of use in a psychophysiological laboratory are described. Future developments of higher speed recording and extended uses are discussed.","PeriodicalId":86470,"journal":{"name":"IRE transactions on bio-medical electronics","volume":"9 1","pages":"185-189"},"PeriodicalIF":0.0,"publicationDate":"1962-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TBMEL.1962.4322996","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62994294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Comments on "Analog Computer Simulation of a Neural Element" “神经元件的模拟计算机仿真”述评
IRE transactions on bio-medical electronics Pub Date : 1962-07-01 DOI: 10.1109/TBMEL.1962.4323002
F. F. Hiltz
{"title":"Comments on \"Analog Computer Simulation of a Neural Element\"","authors":"F. F. Hiltz","doi":"10.1109/TBMEL.1962.4323002","DOIUrl":"https://doi.org/10.1109/TBMEL.1962.4323002","url":null,"abstract":"","PeriodicalId":86470,"journal":{"name":"IRE transactions on bio-medical electronics","volume":"9 1","pages":"210-211"},"PeriodicalIF":0.0,"publicationDate":"1962-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TBMEL.1962.4323002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62994655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Transistor Equipment for Continuous Recording of Oriented Migratory Behavior in Birds 用于连续记录鸟类定向迁徙行为的晶体管设备
IRE transactions on bio-medical electronics Pub Date : 1962-07-01 DOI: 10.1109/TBMEL.1962.4323000
J. Aagaard, A. Wolfson
{"title":"Transistor Equipment for Continuous Recording of Oriented Migratory Behavior in Birds","authors":"J. Aagaard, A. Wolfson","doi":"10.1109/TBMEL.1962.4323000","DOIUrl":"https://doi.org/10.1109/TBMEL.1962.4323000","url":null,"abstract":"The migratory behavior of birds has been studied for over 30 years, but a more precise measurement of this behavior is needed to aid in the study of orientation and navigation during migration. The equipment developed for this purpose consists of eight small cages arranged along the axis of the major points of the compass and opening into a large center area. Each cage is provided with a transducer which responds to vibrations induced by a bird in that cage. A \"count\" is recorded and automatically printed at regular intervals from each cage, giving a permanent record of the bird's activity. Preliminary results indicate the system will provide reliable data on magnitude and orientation of a bird's activity. Data are presented for a bird in the natural migratory state and ones in which this state has been artificially induced or maintained.","PeriodicalId":86470,"journal":{"name":"IRE transactions on bio-medical electronics","volume":"9 1","pages":"204-208"},"PeriodicalIF":0.0,"publicationDate":"1962-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TBMEL.1962.4323000","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62994541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Present Status of Fetal Electrocardiography 胎儿心电图的现状
IRE transactions on bio-medical electronics Pub Date : 1962-07-01 DOI: 10.1109/TBMEL.1962.4322994
S. Larks
{"title":"Present Status of Fetal Electrocardiography","authors":"S. Larks","doi":"10.1109/TBMEL.1962.4322994","DOIUrl":"https://doi.org/10.1109/TBMEL.1962.4322994","url":null,"abstract":"Fetal electrocardiography, an infant but vigorous young discipline, seems to be rapidly emerging as a useful tool for that biological research and medical practice which concerns the unborn heart. Based upon wide experience, it will be useful to survey the status of fetal electrocardiography, pointing out the possibilities as well as limitations. The significance in terms of capability for early study of the developing heart, the diagnosis of fetal life, multiple pregnancy, origins of congenital heart disease, as well as the study of intrauterine difficulties as in labor is presented and discussed in detail. On the basis of a discussion of present-day instruments and the types of \"noise\" encountered, it is suggested that improved low-noise amplifiers are desirable; it is suggested further that the use of averaging, correlation, and other computer-based techniques may hold substantial promise. 9152.","PeriodicalId":86470,"journal":{"name":"IRE transactions on bio-medical electronics","volume":"9 1","pages":"176-180"},"PeriodicalIF":0.0,"publicationDate":"1962-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TBMEL.1962.4322994","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62994203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
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