Results 101 to 110 of about 1,160,559 (367)

Frequency Modulation in Radio [PDF]

Nature, 1957
Frequency Modulation By L. B. Arguimbau and R. D. Stuart. (Methuen's Monographs on Physical Subjects.) Pp. vii + 96. (London: Methuen and Co., Ltd.; New York: John Wiley and Sons, Inc., 1956.) 8s. 6d. Frequency Modulation Engineering By Christopher E. Tibbs and G. G. Johnstone. Second edition, revised. Pp. xii + 435.
openaire   +2 more sources

A stepwise emergence of evolution in the RNA world

FEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Auditory training during development mitigates a hearing loss-induced perceptual deficit.

Frontiers in Systems Neuroscience, 2014
Sensory experience during early development can shape the central nervous system and this is thought to influence adult perceptual skills. In the auditory system, early induction of conductive hearing loss (CHL) leads to deficits in central auditory ...
Ramanjot eKang, Emma eSarro, Dan eSanes, Dan eSanes   +3 more
doaj   +1 more source

Gigahertz acousto-optic modulation and frequency shifting on etchless lithium niobate integrated platform [PDF]

arXiv, 2020
Acousto-optic interactions involving propagating phonons can break the time-reversal and frequency-modulation symmetry of light. However, conventional acousto-optic modulators based on bulk materials have frequency bandwidth limited to hundreds of megahertz due to their large structural sizes.
arxiv  

Brucella NyxA and NyxB dimerization enhances effector function during infection

FEBS Letters, EarlyView.
Brucella abortus thrives inside cells thanks to the translocation of effector proteins that fine‐tune cellular functions. NyxA and NyxB are two effectors that destabilize the nucleolar localization of their host target, SENP3. We show that the Nyx proteins directly interact with each other and that their dimerization is essential for their function ...
Lison Cancade‐Veyre, Arthur Louche, Francine C. A. Gérard, Laurent Terradot, Suzana P. Salcedo   +4 more
wiley   +1 more source

Optimal LLC Converter Design With Topology Morphing Control for Wide Voltage Range Battery Charging Applications

IEEE Open Journal of Power Electronics
LLC converters benefit from soft switching and sinusoidal currents over dual active bridge (DAB) converters. The design process of an LLC converter involves the selection of resonant tank inductor, capacitor, magnetizing inductance, resonant frequency ...
Guvanthi Abeysinghe Mudiyanselage, Kyle Kozielski, Ali Emadi   +2 more
doaj   +1 more source

Tradeoff between User Experience and BCI Classification Accuracy with Frequency Modulated Steady-State Visual Evoked Potentials

Frontiers in Human Neuroscience, 2017
Steady-state visual evoked potentials (SSVEPs) have been widely employed for the control of brain-computer interfaces (BCIs) because they are very robust, lead to high performance, and allow for a high number of commands. However, such flickering stimuli
Alexander M. Dreyer, Christoph S. Herrmann, Christoph S. Herrmann, Jochem W. Rieger, Jochem W. Rieger   +4 more
doaj   +1 more source

Limitation of the modulation method to smooth wire guide roughness

, 2010
It was recently demonstrated that wire guide roughness can be suppressed by modulating the wire currents so that the atoms experience a time-averaged potential without roughness. We theoretically study the limitations of this technique. At low modulation
C. L. Garrido Alzar, E. Landau, I. Bouchoule, J.-B. Trebbia, R. Folman   +4 more
core   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

FEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro, Marco Cellani, Cristina Scielzo   +2 more
wiley   +1 more source

Analog Frequency Tracking Filter

Advances in Electrical and Computer Engineering, 2013
This paper propose a new type of analog adaptive filter derived as a generalization of the concept of matched filter. We conceive such a filter to track the instantaneous frequency of frequency modulated signals.
ISAR, A., ISAR, D.
doaj   +1 more source