Results 81 to 90 of about 129,952 (301)

High Performance BCD Integrated Buck-Boost Converter in an AMOLED Display with Application of Self-Triggering Frequency Modulation

Advances in Electrical and Computer Engineering, 2018
Feedback control for self-triggering frequency modulation is proposed for an integrated buck-boost DC-DC converter in an AMOLED display. The goal is to reduce the ripple noise and transient time during the switching process.
KIM, H., JEON, S., CHOI, H., KIM, N.
doaj   +1 more source

A Load Modulated Balanced Amplifier for Telecom Applications [PDF]

IEEE Transactions on Microwave Theory and Techniques, 2018
This paper presents the design and characterization of a load modulated balanced amplifier for telecom base station applications adopting a novel mode of operation. The theory of operation is described explaining the main differences compared to Doherty amplifiers, in particular the RF bandwidth advantages and, on the other hand, the intrinsic non ...
Roberto Quaglia, Steve Cripps
openaire   +1 more source

Evaluation of a GaN HEMT transistor for load- and supply-modulation applications using intrinsic waveform measurements

, 2010
In this paper, the efficiency of a GaN HEMT transistor and its intrinsic waveforms are measured at 0.9 GHz and investigated for load- and supply-modulation applications.
Tasker, Paul J., Benedikt., Johannes, Fager, Christian, Clarke, Alan L., Cripps, Stephen Charles, Mashad Nemati, Hossein, Steve C. Cripps, Jan Grahn, Herbert Zirath, Johannes Benedikt, S. C. Cripps, A. L. Clarke, H. Zirath, H. Mashad Nemati, Grahn, Jan, Zirath, Herbert, Christian Fager, Paul J. Tasker, J. Grahn, Cripps, Steve C., Clarke, Alan Leslie, Benedikt, Johannes, C. Fager, Alan L. Clarke, J. Benedikt, Hossein Mashad Nemati, P. J. Tasker   +26 more
core   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

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

Performance Analysis of Inverter Fed Single Phase Induction Motor Drive

ABUAD Journal of Engineering Research and Development
This paper presents performance analysis of effects of modulation index on cascaded multilevel inverter fed single phase induction motor drive using closest level control technique. The modulation index is varied to analyze its performance.
Gerald Chidozie Diyoke, Candidus Ugwuoke Eya, Patrick Ifeanyichukwu Obi, Ifeanyichukwu Kalu Onwuka   +3 more
doaj   +1 more source

Perceptual load modulates conscious flicker perception

Journal of Vision, 2007
Subjective visual experience depends not only on the spatial arrangement of the environment, but also on the temporal pattern of stimulation. For example, flickering and steady light presented in the same location evoke a very different perceptual experience due to their different temporal patterns.
David, Carmel, Pascal, Saker, Geraint, Rees, Nilli, Lavie   +3 more
openaire   +2 more sources

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

SiC Varactors for Dynamic Load Modulation of High Power Amplifiers

, 2008
SiC Schottky diode varactors with a high breakdown voltage, a high tuning ratio, and a low series resistance have been designed and fabricated. These characteristics are particularly necessary for the dynamic load modulation of high power amplifiers (PAs)
Fager, Christian, Fager, Christian,, Jos, Hendrikus,, Janzen, Erik, Nilsson, P.-A.,, Jos, Hendrikus, Andersson, K.,, Janzén, Erik,, Rorsman, N.,, Sudow, Mattias,, Nilsson, Per-Åke,, Jos, R.,, Mashad Nemati, Hossein, Gustavsson, Ulf,, Janz\ue9n, Erik, Thorsell, Mattias, Nemati, H.M.,, Rorsman, Niklas, Thorsell, Mattias,, Nilsson, Per-Åke, ul-Hassan, Jawad,, Henry, Anne,, Sudow, M.,, Gustavsson, U.,, Fager, C.,, Andersson, Kristoffer, Gustavsson, Ulf, Rorsman, Niklas,, Südow, Mattias, Thorsell, M.,, Hassan, J,, Jos, Rik, Henry, Anne, Hassan, J, Andersson, Kristoffer,, Mashad Nemati, Hossein,, Nilsson, Per-\uc5ke   +36 more
core   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source