Results 201 to 210 of about 685,865 (255)
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Four channel device for PPG measurements
2015 38th International Conference on Telecommunications and Signal Processing (TSP), 2015The article deals with the design of four channel device serving for photoplethysmographic measurements. There are described main parts of the device such as analog and digital signal processing part and microcontroller controlled LED drivers. The work includes description of digital data processing algorithm.
Stefan Borik, Ivo Cap, Branko Babusiak
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Four-channel radioisotope renography
International Urology and Nephrology, 1976An attempt has been made at a fuller utilization of the information content of 131I-Hippurate in four-channel renography, recording the activities over the kidneys, heart and bladder. The four-channel system was supplemented with a digital scaler, which enabled also the volume of residual urine to be determined after renography.
L. Szomor +3 more
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A Multipurpose Four-Channel Fluid Swivel
Brain Research Bulletin, 1998This article describes the construction of a functional quadruple fluid swivel with low propensity to leaking and low resistance to rotation. It was obtained through the addition of a fourth channel and some modifications performed on the rotary unit of a triple channel fluid swivel recently described.
M A, Parada +4 more
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"Is four channel a quadrifizzle?"
ICASSP '76. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005The development of 4 channel home entertainment systems has been motivated by the marketplace and accomplished without a thorough engineering feasibility study. One area of promise has not been exploited while four areas of foolishness have been propagated. As a result, the author's answer to the title question is "yes."
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American Journal of Audiology, 1995
Simultaneous four-channel (ipsilateral, contralateral, horizontal, and noncephalic) ABR recordings were reviewed by three audiologists for 187 ears of nontumor patients, and 13 ears of patients having eighth nerve tumors. Waveforms from a subgroup of 63 ears were reexamined by the same audiologists to assess inter- and intra-judge consistency.
Terri L. Pratt +2 more
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Simultaneous four-channel (ipsilateral, contralateral, horizontal, and noncephalic) ABR recordings were reviewed by three audiologists for 187 ears of nontumor patients, and 13 ears of patients having eighth nerve tumors. Waveforms from a subgroup of 63 ears were reexamined by the same audiologists to assess inter- and intra-judge consistency.
Terri L. Pratt +2 more
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Proceedings Seventh Annual IEEE International ASIC Conference and Exhibit, 2002
A four channel DS1 framer chip has been developed for deployment in multichannel T1 systems, SONET add-drop multiplexers, T3 multiplexes, and ATM over T1 applications. Area reduction was realized through the use of a high speed clock, permitting use of shared resources and construction of simple arbiters for single port RAM. For further gate reduction,
E.L. Parrella, null Sin-Min Chang
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A four channel DS1 framer chip has been developed for deployment in multichannel T1 systems, SONET add-drop multiplexers, T3 multiplexes, and ATM over T1 applications. Area reduction was realized through the use of a high speed clock, permitting use of shared resources and construction of simple arbiters for single port RAM. For further gate reduction,
E.L. Parrella, null Sin-Min Chang
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Thirty-Four Megabit Four-Channel Multiplexer
1985Abstract : A four-channel high speed multiplexer/rate converter has been designed to permit the Digital European Backbone (DEB) system to utilize Conference of European Post and Telecommunications Administration (CEPT) Level 3 transmission facilities. The multiplexer combines two mission bit stream data channels each at 12.928 Mb/s, a data channel at 2.
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Four‐mode channel interactivity concept and channel preferences
Journal of Services Marketing, 2010PurposeThis paper has two purposes. First, it aims to propose an alternative conceptualization for interactivity that distinguishes between four interactivity modes: human, medium, message, and product. Second, it seeks to develop a framework of channel preferences that integrates the four‐mode concept of channel interactivity.Design/methodology ...
Bela Florenthal, Aviv Shoham
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Interferometric nulling of four channels with integrated optics
Applied Optics, 2015Nulling interferometry has been identified as a competitive technique for the detection of extrasolar planets. In its basic form, the technique consists of combining out-of-phase a single pair of telescopes to effectively null the light of a bright star and reveal the dim glow of the companion.
Ronny, Errmann +6 more
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External four‐channel tocography during delivery
International Journal of Gynecology & Obstetrics, 1994AbstractObjective: A four‐channel tocographic technique was developed in order to improve present knowledge of spatial uterine motility. Method: Fifty‐four women were monitored during labor. Four pressure transducers were attached in a square around the umbilicus.
L, Spätling +3 more
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