Results 61 to 70 of about 786,843 (253)
, 2015 We consider the effect of self-phase modulation and cross-phase modulation on the joint spectral amplitude of photon pairs generated by spontaneous four-wave mixing. In particular, the purity of a heralded photon from a pair is considered, in the context
Bell, Bryn +3 more
core +1 more source
A photonic chip based frequency discriminator for a high performance microwave photonic link [PDF]
, 2010 We report a high performance phase modulation direct detection microwave photonic link employing a photonic chip as a frequency discriminator. The photonic chip consists of five optical ring resonators (ORRs) which are fully programmable using thermo ...
Hoekman, Marcel +3 more
core +3 more sources
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 +5 more
wiley +1 more source
Acoustic Bessel Vortex Beam by Quasi-Three-Dimensional Reflected Metasurfaces
Micromachines, 2021 Vortex beams have a typical characteristic of orbital angular momentum, which provides a new degree of freedom for information processing in remote communication and a form of non-contact manipulation for trapping particles.
Yin Wang +6 more
doaj +1 more source
Comparison of Three-Phase Modulation with Two-Phase and Four-Phase Modulation [PDF]
IEEE Transactions on Communications, 1980 For a constant added noise density at high signal-to-noise ratios and for the same error rate, three-phase PSK requires about 0.75 dB less energy per bit than two-phase or four-phase PSK. However, at very low signal-to-noise ratios, three-phase PSK requires about 0.74 dB more energy per bit of channel capacity than two-phase or four-phase PSK.
openaire +2 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Beam Shaping for Wireless Optical Charging with Improved Efficiency
Crystals, 2021 Optical wireless charging is a nonradiative long-distance power transfer method. It may potentially play an important role in certain scenarios where access is challenging, and the radio frequency power transfer is less efficient.
Lei Tian, Jiewen Nie, Haining Yang
doaj +1 more source
Phase locked phase modulator including a voltage controlled oscillator Patent [PDF]
, 1968 Phase locked phase modulation system with voltage controlled oscillator for final phase ...
Sivley, J. B., Vaughan, G. R.
core +1 more source
An experimental study of intermodulation effects in an atomic fountain frequency standard [PDF]
, 2007 The short-term stability of passive atomic frequency standards, especially in pulsed operation, is often limited by local oscillator noise via intermodulation effects.
G. Dudle +7 more
core +4 more sources
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source