Results 111 to 120 of about 18,006,196 (349)

Rolling quantum dice with a superconducting qubit

, 2014
One of the key challenges in quantum information is coherently manipulating the quantum state. However, it is an outstanding question whether control can be realized with low error.
Barends, R., Campbell, B., Chen, Y., Chen, Z., Chiaro, B., Cleland, A. N., Dunsworth, A., Fowler, A. G., Hoi, I. -C., Jeffrey, E., Kelly, J., Korotkov, A. N., Martinis, John M., Megrant, A., Mutus, J., Neill, C., O'Malley, P. J. J., Quintana, C., Roushan, P., Sank, D., Veitia, A., Wenner, J., White, T. C.   +22 more
core   +2 more sources

Comparison between Fuzzy Logic and PI Control for The Speed Of BLDC Motor

International Journal of Power Electronics and Drive Systems (IJPEDS), 2018
In this paper the analytical comparison of brushless DC (BLDC) motor drive with proportional integral (PI) and fuzzy logic controller (FLC) based speed controllers is estimated. Proportional integral (PI) has disadvantages like it do not operate properly
A. H. Ahmed, A. Kotb, Ayman M. Ali
semanticscholar   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Breakdown of PCAC in diffractive neutrino interactions

, 2011
We test the hypothesis of partially conserved axial current (PCAC) in high energy diffractive neutrino production of pions. Since the pion pole contribution to the Adler relation (AR) is forbidden by conservation of the lepton current, the heavier states,
A. A. Belkov, A. A. Belkov, B. Z. Kopeliovich, B. Z. Kopeliovich, B. Z. Kopeliovich, B. Z. Kopeliovich, B. Z. Kopeliovich, B. Z. Kopeliovich, I. K. Potashnikova, Iván Schmidt, J. S. Bell, M. Bell, M. Siddikov, S. S. Gershtein, S. S. Gershtein, V. N. Gribov, V. N. Gribov, Yu. Y. Komachenko, Yu. Y. Komachenko   +18 more
core   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Time Optimal Synthesis for Left--Invariant Control Systems on SO(3)

, 2005
Consider the control system given by $\dot x=x(f+ug)$, where $x\in SO(3)$, $|u|\leq 1$ and $f,g\in so(3)$ define two perpendicular left-invariant vector fields normalized so that $\|f\|=\cos(\al)$ and $\|g\|=\sin(\al)$, $\al\in ]0,\pi/4[$. In this paper,
Boscain, Ugo, Chitour, Yacine
core   +3 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

BLDC Motor Control Optimization Using Optimal Adaptive PI Algorithm

Jurnal Elektronika dan Telekomunikasi, 2020
The main problem of using a Proportional Integral (PI) Controller in Brushless Direct Current (BLDC) motor speed control is tuning the PI’s parameter and its performance cannot adapt to the system behavior changes.
Supriyanto Praptodiyono, Hari Maghfiroh, Chico Hermanu   +2 more
doaj   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Research on compound current control strategy based on LCL type active power filter

Gong-kuang zidonghua, 2017
In view of contradiction between high steady state accuracy and fast dynamic response of traditional current control strategy, a novel compound current control strategy based on LCL type active power filter was proposed.
GAO Yunguang, SONG Jiancheng, ZHENG Lijun, JIANG Fayang, TIAN Feiyan   +4 more
doaj   +1 more source