Results 191 to 200 of about 934,727 (249)

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

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

FEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li, Xi Xiao, Lingbin Qi, Chanyi Li, Sirui Song, Jiaying Qin, Zhigang Xue, Jinfeng Xue, Huaifang Li   +8 more
wiley   +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

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Voltage-controlled photonic oscillator

Optics Letters, 2010
We report the development and demonstration of an X-band voltage-controlled photonic oscillator based on a whispering gallery mode resonator made of an electro-optic crystalline material. The oscillator has good spectral purity and wide, agile, linear tunability.
A A, Savchenkov, V S, Ilchenko, W, Liang, D, Eliyahu, A B, Matsko, D, Seidel, L, Maleki   +6 more
openaire   +2 more sources

Rectifier Voltage Control

Transactions of the American Institute of Electrical Engineers, 1926
Lack of voltage control is one of the objections which have been made to the use of rectifiers. The author describes a method of voltage control for rectifiers based on the use of a saturated core interphase transformer. Saturation of this device produces a gradual change from two three-phase rectifiers operating in parallel to one six-phase rectifier ...
openaire   +2 more sources

Voltage control in low voltage systems with controlled low voltage transformer (CLVT)

CIRED 2012 Workshop: Integration of Renewables into the Distribution Grid, 2012
The rapidly growing penetration of Germany's distribution grids with all forms of DG causes a high pressure on voltage stability according to several normative guidelines. Beside conventional network reinforcements increasing short-circuit-power, new technical alternatives awake interest.
B. Werther, A. Becker, J. Schmiesing, E.-A. Wehrmann   +3 more
openaire   +1 more source

"Semiconductor voltage controllable reactance"

IRE Transactions on Electron Devices, 1955
A germanium alloy-junction diode has been developed which is useful as a voltage controlled reactance up to and including ultra high frequencies. Special attention has been paid to electrical losses and lead inductance. Typical performance at 500 mc/s and 6 volts bias is a capacitance of 30 µµfd with a change in capacitance at this voltage of 2 µµfd ...
J. O'Connell, L.J. Giacoletto
openaire   +1 more source

Variable-Unbalanced-Voltage Control

Transactions of the American Institute of Electrical Engineers, 1945
SPEED CONTROL of wound-rotor induction motors where the torque is in the same direction as the mechanical rotation may be accomplished with moderate success merely by the use of adjustable resistance in the secondary or rotor circuit, provided the torque being developed by the motor is appreciable. Where the torque must be contrary to the rotation, for
openaire   +1 more source

On voltage stability regions and voltage secondary control

PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376), 2003
This paper presents some new results on the geometry of the reactive load-flow problem. These results have implications in order to asses the system margin to the voltage collapse and to design a secondary voltage control aimed to avoid the voltage collapse.
openaire   +2 more sources

Computer controlled voltage clamp experiments

Annals of Biomedical Engineering, 1973
A small digital computer (a Digital Equip. Corp. LINC-8) has been interfaced to voltage clamp control circuitry and a buffer memory in order for it to both control experiments and provide fast and flexible data acquisition. The experiments are designed and run from the computer graphic terminal in a conversational language, offering the experimenter ...
R W, Joyner, J W, Moore
openaire   +2 more sources