Results 71 to 80 of about 78,152 (269)
Unconditionally Convergent pre-Distortion of non-Linear High Power Amplifiers [PDF]
, 2001 The use of High Power Amplifiers (HPA) in digital communications is plagued with non-linear (AM/AM and AM/PM) distortion. This is specially acute for those modulations that are not constant amplitude, such as OFDM or MQAM.
Power Amplifiers +2 more
core
An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane
FEBS Letters, EarlyView.Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa +3 more
wiley +1 more source
Effect of losses in an active device and harmonic network on the efficiency of Class F and inverse Class F power amplifiers [PDF]
, 2012 High frequency class F and inverse class F power amplifiers obtain high efficiency of dc to ac power conversion, by reducing the overlap of voltage and current waveforms at the output of the active device, to ensure that the power dissipated in the ...
Ghassemlooy, Zabih +5 more
core
FEBS Letters, EarlyView.Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley +1 more source
Behavioral modeling for digital predistortion of RF power amplifiers: from Volterra series to CPWL functions [PDF]
, 2019 The 2016 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications ( PAWR), Austin, Texas, United States of America, 24-27 January 2016This paper gives an overview of behavioral modeling for digital predistortion of RF power ...
Zhu, Anding
core +2 more sources
FEBS Letters, EarlyView.This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley +1 more source
Frequency-resolved noise figure measurements of phase (in)sensitive fiber optical parametric amplifiers [PDF]
, 2014 We measure the frequency-resolved noise figure of fiber optical parametric amplifiers both in phase-insensitive and phase-sensitive modes in the frequency range from 0.03 to 3 GHz.
Lorences Riesgo, Abel, +9 more
core +1 more source
Active Antennas Beyond the Standard Impedance Matching Technique: Concepts and Applications
IEEE Open Journal of Antennas and PropagationThis paper presents a new design concept for improving active antennas’ performances beyond the standard impedance matching technique. The proposed approach expands the mismatch at the antenna-amplifier interface to create a voltage excess ...
Constant M. A. Niamien
doaj +1 more source
FEBS Letters, EarlyView.An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley +1 more source
Southern African Journal of Environmental EducationClimate Change Education (CCE) is widely recognised as one of the effective strategies for mitigating climate change challenges and risks. However, lack of the necessary knowledge and pedagogical skills among the majority of teachers in South Africa ...
Yvonne Nsubuga +3 more
doaj +1 more source