Results 271 to 280 of about 2,813,006 (349)
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1956
Publisher Summary This chapter describes the three types of pulse amplitude analyzers that are voltage discriminator, voltage-to-length conversion analyzers, and voltage-to-time conversion analyzers. Pulse amplitude analyzers divide themselves fairly clearly into three groups, according to the means they employ to measure the input pulse amplitude ...
J.L.W. Churchill, S.C. Curran
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Publisher Summary This chapter describes the three types of pulse amplitude analyzers that are voltage discriminator, voltage-to-length conversion analyzers, and voltage-to-time conversion analyzers. Pulse amplitude analyzers divide themselves fairly clearly into three groups, according to the means they employ to measure the input pulse amplitude ...
J.L.W. Churchill, S.C. Curran
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Wavelet denoising of vaginal pulse amplitude
Psychophysiology, 2010Vaginal pulse amplitude (VPA) has been the most commonly analyzed signal of the vaginal photoplethysmograph. Frequent, large, and variable-morphology artifacts typically have crowded this signal. These artifacts usually were corrected by hand, which may have introduced large differences in outcomes across laboratories.
Nicole, Prause +2 more
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2004
An information-bearing signal must conform to the limitations of its channel. While the bit streams we wish to transmit are inherently discrete-time, all physical media are continuous-time in nature. Hence, we need to represent the bit stream as a continuous-time signal for transmission, a process called ...
John R. Barry +2 more
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An information-bearing signal must conform to the limitations of its channel. While the bit streams we wish to transmit are inherently discrete-time, all physical media are continuous-time in nature. Hence, we need to represent the bit stream as a continuous-time signal for transmission, a process called ...
John R. Barry +2 more
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Nanosecond Pulse Generator with Scalable Pulse Amplitude
2008 IEEE International Power Modulators and High-Voltage Conference, 2008The design and operation of a pulse generator capable of delivering a 5 ns pulse with a variable amplitude into a 50 Omega load is described. Experimental studies have shown that nanoelectropulses of sufficiently short rise time and duration can affect intracellular structures such as the nucleus and mitochondria without permanently damaging the outer ...
J. Sanders, A. Kuthi, M. A. Gundersen
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Amplitude Modulated Heat Pulses
1984The generation of acoustic phonons by a metal heater evaporated on a crystal has found a wide range of applications since the original work of von Gutfeld and Nethercot [1]. In dielectric crystals with a sufficiently low number of dislocations and impurities a ballistic propagation of acoustic phonons of all modes can be observed. Thereby the heater is
L. Hirschbiegel, M. Siemon, W. Grill
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Estimation of Current Amplitude Pulse
Advanced Materials Research, 2014Method of estimation of current amplitude (~10 kA) pulses constructed by powerful current pulse generator is suggested. It bases on the solution of differential equation current and voltage change on capacitor. The final formula consists of maximum value of capacitor charge, maximum negative voltage value, pulse duration and capacitor value.
Victor Gromov +6 more
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Assessing spontaneous baroreflex in aged with pulse-pulse intervals and pulse amplitudes
2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2013Cardiac autonomic dysfunction is a serious condition in the elder subjects. Baroreflex sensitivity (BRS) by measuring pulse intervals and blood pressure has been proven as an effective indicator. This paper proposes a novel index by substitution blood pressure with amplitudes of pressure pulse.
An-Bang, Liu +6 more
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Transcranial electrical stimulator producing high amplitude pulses and pulse trains
Journal of Medical Engineering & Technology, 1998Transcranial electrical stimulation can be used for clinical investigations of the central nervous system and for monitoring of motor nerve tracts during surgical operations. We wished to reduce the pain involved with the transcranial electrical stimulation and to improve the usefulness of the method for monitoring during surgical operations.
V, Suihko, H, Eskola
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A Pulse Amplitude Analyzer for Nuclear Research Using Pretreated Pulses
Review of Scientific Instruments, 1949A pulse analyzer is an instrument used to record the number of pulses occurring in a given time whose amplitudes lie between certain limits. In the present equipment records are obtained from 30 ``channels'' simultaneously, the upper amplitude limit for any one channel being the lower amplitude limit of the next.
C H, WESTCOTT, G C, HANNA
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Pulse-width equivalent to pulse-amplitude discrete control of linearsystems
Journal of Guidance, Control, and Dynamics, 1992This paper presents a method to translate pulse-amplitude modulated discrete controls, for which many design algorithms exist, into pulse-width modulated controls extensively used in aerospace applications. Assuming that a discrete control law is available for a linear time-invariant multivariable system, the conditions for an approximate equivalent ...
BERNELLI ZAZZERA, FRANCO +1 more
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