Results 71 to 80 of about 2,447,475 (350)

Hybrid control approach for fast switching MMCs

The Journal of Engineering, 2019
This study presents a new hybrid control approach for different control and switching frequencies for converters of the modular multi-level converter (MMC) family.
Mathias Schnarrenberger, Dennis Bräckle, Michael Braun   +2 more
doaj   +1 more source

The C-Band All-Sky Survey: Instrument design, status, and first-look data [PDF]

, 2010
The C-Band All-Sky Survey (C-BASS) aims to produce sensitive, all-sky maps of diffuse Galactic emission at 5 GHz in total intensity and linear polarization.
Copley, Charles, Davies, Rod, Davis, Richard, Dickinson, Clive, Hafez, Yaser A., Holler, Christian, John, Jaya John, Jonas, Justin L., Jones, Michael E., King, Oliver G., Leahy, J. Patrick, Muchovej, Stephen J. C., Pearson, Timothy J., Readhead, Anthony C. S., Stevenson, Matthew A., Taylor, Angela C.   +15 more
core   +2 more sources

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Study and design of an ultrasonic flow tomographic front-end multi level measurement system [PDF]

, 2014
With the rapid evolution of electro-acoustical technology, ultrasonic tomography has made considerable progress in industry. An ultrasonic tomography system provides non-invasive and non-intrusive flow visualisation that enhances the understanding of ...
Abbas, Khairul Hamimah, Abdul Rahim, Ruzairi, Ahmad, Anita, Ahmad, Nasaruddin, Goh, Chiew Loon, Mohd. Yunus, Fazlul Rahman, Nor Ayob, Nor Muzakkir, Rahiman, Mohd Hafiz Fazalul, Ridzuan Aw, Suzanna   +8 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Stirling Convertor Controller Development at NASA Glenn Research Center [PDF]

For nearly two decades, NASA Glenn Research Center has been supporting the development of radioisotope power systems (RPS). NASA desires higher conversion efficiency RPS options that are reliable and robust with long-life design. Dynamic conversion, such
Dugala, Gina M.
core   +4 more sources

Analysis and Implementation of an Interleaved High Step‐Up Converter With Zero‐Voltage‐Switching

IET Power Electronics
In this paper, a high step‐up DC‐DC converter is presented. The input current ripple is reduced by adding the interleaving technique on the input side.
Marzieh Mohammadi Jouzdani, Omid Haghparast Naeini, Mahdi Shaneh, Tohid Nouri   +3 more
doaj   +1 more source

Non-isolated resonant link DC–DC converter for use with GaN devices

The Journal of Engineering, 2019
As new wide band-gap (WBG) devices are developed and improved, new topologies and control schemes are required to take advantage of the ultra-fast switching turn on/off speeds that are now available, without the limitations of switching losses and ...
Maria Orr, Stephen Finney, Derrick Holliday   +2 more
doaj   +1 more source

High-speed digital-to-analogue convertor using passive switched-capacitor algorithmic conversion

Electronics Letters, 1988
A purely passive parasitic-compensated switched-capacitor circuit is shown to implement a simple signal conversion algorithm consisting of a mere charge division between equal valued capacitors. Such a circuit is the core of the new digital-to-analogue convertor described in this letter, and which is particularly suitable for high-frequency ...
V.F. Dias, J.E. Franca, J.C. Vital
openaire   +1 more source

Differential regulation of ZFAS1 splice variants by endoplasmic reticulum stress in hepatocyte cell lines

FEBS Open Bio, EarlyView.
ZFAS1 is a lncRNA promoting cell proliferation and migration, exhibiting high expression in various cancers. It is conserved, widely expressed, and produces multiple splice variants with unclear roles. We identified several splice variants in hepatocyte models, and found that inhibiting or suppressing regulators of the unfolded protein response (PERK ...
Sébastien Soubeyrand, Paulina Lau, Ruth McPherson   +2 more
wiley   +1 more source