High-Frequency Ventilation

Known as: High Frequency Ventilations, Ventilations, High-Frequency, High-Frequency Ventilations 
Ventilatory support system using frequencies from 60-900 cycles/min or more. Three types of systems have been distinguished on the basis of rates… (More)
National Institutes of Health

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Highly Cited
2011
Highly Cited
2011
The allele frequency net database (http://www.allelefrequencies.net) is an online repository that contains information on the… (More)
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Highly Cited
2006
Highly Cited
2006
Conventional radio-frequency (RF) power amplifiers operating with wideband signals, such as wideband code-division multiple… (More)
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Highly Cited
2000
Highly Cited
2000
Introduction: Orthogonal frequency division multiplexing (OFDM) allows high-speed data transmission across a dispersive channel… (More)
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Highly Cited
1999
Highly Cited
1999
A loss of subchannel orthogonality due to timevariant multipath channels in orthogonal frequency-division multiplexing (OFDM… (More)
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Highly Cited
1997
Highly Cited
1997
In July 1997 the Institute of Electrical and Electronics Engineers (IEEE) completed standard 802.11 for wireless local area… (More)
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Highly Cited
1995
Highly Cited
1995
The use of multi-amplitude signaling schemes in wireless OFDM systems requires the tracking of the fading radio channel. This… (More)
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Highly Cited
1994
Highly Cited
1994
HE TECHNIQUE described in this paper has been deT veloped to correct frequency offset errors in digital communications systems… (More)
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Highly Cited
1989
Highly Cited
1989
A novel magnetic resonance imaging technique provides direct imaging of motion by spatially modulating the degree of… (More)
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Highly Cited
1988
Highly Cited
1988
Specified regions of the myocardium can be labeled in magnetic resonance (MR) imaging to serve as markers during contraction. The… (More)
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Highly Cited
1982
Highly Cited
1982
Oxygenation and mean lung volume were investigated during high frequency oscillation (HFO) and conventional mechanical… (More)
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