Results 221 to 230 of about 1,562,038 (265)
Some of the next articles are maybe not open access.
2006
The class-E oscillator with the directed coupler in the feedback is studied. The similar design allows to retune the oscillator with preservation of high efficiency due to a constancy of a directed coupler coupling coefficient in band of readjustable frequencies and absence of the additional selective resonator in the feedback.
Krizhanovski, Vladimir G. +1 more
openaire +1 more source
The class-E oscillator with the directed coupler in the feedback is studied. The similar design allows to retune the oscillator with preservation of high efficiency due to a constancy of a directed coupler coupling coefficient in band of readjustable frequencies and absence of the additional selective resonator in the feedback.
Krizhanovski, Vladimir G. +1 more
openaire +1 more source
2001
It is desirable to obtain high RF power amplifier efficiency in many practical applications. At least one, if not all, of the following requirements is important: low power consumption (especially for battery-operated equipment), low temperature rise of the components, high reliability, small size, and light weight. Although the parasitic energy losses
openaire +1 more source
It is desirable to obtain high RF power amplifier efficiency in many practical applications. At least one, if not all, of the following requirements is important: low power consumption (especially for battery-operated equipment), low temperature rise of the components, high reliability, small size, and light weight. Although the parasitic energy losses
openaire +1 more source
On the class overlap problem in imbalanced data classification
Knowledge-Based Systems, 2021Andrei Petrovski +2 more
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Towards a systems understanding of MHC class I and MHC class II antigen presentation
Nature Reviews Immunology, 2011Jacques Neefjes +2 more
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NLRC5: a key regulator of MHC class I-dependent immune responses
Nature Reviews Immunology, 2012Koichi S Kobayashi +2 more
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