Results 221 to 230 of about 292,210 (268)
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Pulse in Pulse Intense Pulsed Light for Melasma Treatment: A Pilot Study
Dermatologic Surgery, 2014A new type of intense pulsed light IPL with pulse-in-pulse (PIP) mode (multiple fractionated subpulses in one pulse width) has recently been developed.To evaluate the clinical efficacy and safety of PIP IPL in patients with melasma.Half of each patient's face was treated with IPL and six treatment sessions with a low-fluence quality-switched neodymium ...
Jong Yoon, Chung +4 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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Journal of Magnetic Resonance, 2010
We introduce the concept of cooperative (COOP) pulses which are designed to compensate each other's imperfections. In multi-scan experiments, COOP pulses can cancel undesired signal contributions, complementing and generalizing phase cycles. COOP pulses can be efficiently optimized using an extended version of the optimal-control-based gradient ascent ...
Michael, Braun, Steffen J, Glaser
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We introduce the concept of cooperative (COOP) pulses which are designed to compensate each other's imperfections. In multi-scan experiments, COOP pulses can cancel undesired signal contributions, complementing and generalizing phase cycles. COOP pulses can be efficiently optimized using an extended version of the optimal-control-based gradient ascent ...
Michael, Braun, Steffen J, Glaser
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Pulse distortions in tilted pulse schemes for ultrashort pulses
Optics Communications, 1986Abstract Analytical expressions are found for the propagation of the amplitude of tilted ultrashort pulses. The distortions arising are the pulse broadening, tilt angle decrease, chirp, frequency shift and spatial profile variation. Expressions for these quantities are found and it is shown that the mechanisms responsible for the distortions are the ...
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Canadian Journal of Biochemistry and Physiology, 1961
The occurrence of at least four non-reducing oligosaccharides has been observed in pulses. Three of the saccharides have been separated from resting seeds of green gram and have been characterized as raffinose, stachyose, and verbascose. A fairly similar pattern of composition of these sugars exists in a variety of pulses.
V N, NIGAM, K V, GIRI
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The occurrence of at least four non-reducing oligosaccharides has been observed in pulses. Three of the saccharides have been separated from resting seeds of green gram and have been characterized as raffinose, stachyose, and verbascose. A fairly similar pattern of composition of these sugars exists in a variety of pulses.
V N, NIGAM, K V, GIRI
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Environment and Planning B: Planning and Design, 2010 There is no abstract for this paper.
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Pediatric Emergency Care, 1987
The pulse oximeter provides a noninvasive, continuous, and generally valid measure of SaO2. Armed with a basic understanding of its operating principles and limitations, and the proper interpretation of SaO2, the emergency physician will find the pulse oximeter to be a useful instrument for the detection of hypoxia in infants and children.
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The pulse oximeter provides a noninvasive, continuous, and generally valid measure of SaO2. Armed with a basic understanding of its operating principles and limitations, and the proper interpretation of SaO2, the emergency physician will find the pulse oximeter to be a useful instrument for the detection of hypoxia in infants and children.
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Digital Signal Processing, 2002
Abstract Cohen, L., Contraction of Pulses, Digital Signal Processing12 (2002) 405–415 We give an explicit criterion for when a pulse will first contract before eventually spreading. The contraction time is explicitly given and it is shown that the important quantity is the initial correlation between position and group velocity.
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Abstract Cohen, L., Contraction of Pulses, Digital Signal Processing12 (2002) 405–415 We give an explicit criterion for when a pulse will first contract before eventually spreading. The contraction time is explicitly given and it is shown that the important quantity is the initial correlation between position and group velocity.
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Pulse Cycles, Pulse Sequences, and Tissue Contrast
1989In order to create an image in space, steps 2 and 3 of MRR must be repeated multiple times. That is, the RF pulse must be applied over and over with relaxation and signal measurement occurring after each application of the pulse. The number of such repetitions is usually on the order of 128 or 256 (or some other multiple of 64).
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