Results 31 to 40 of about 6,775,054 (305)
Design of frequency invariant beamformer for broadband arrays [PDF]
, 2007 A simple method for the design of a class of arrays with frequency invariant beam patterns is proposed. Starting from the desired frequency invariant beam pattern of an n-D array, the proposed method uses a series of substitutions and an n-D inverse ...
Weiss, Stephan, Liu, Wei
core +4 more sources
An optical fibre-based frequency dissemination network for Australia
, 2011 An optical-fibre network is being planned for distribution of optical and microwave reference frequencies in Australia. This network would connect a number of research facilities and the National Measurement Institute (NMI), allowing long-range ...
Luiten, A. +9 more
core +1 more source
Frequency synchronization induced by frequency detuning
Science AdvancesIt is widely held that identical systems tend to behave similarly under comparable conditions. Yet, for systems that interact through a network, symmetry breaking can lead to scenarios in which this expectation does not hold. Prominent examples are chimera states in multistable phase-oscillator networks.
Jorge Luis Ocampo-Espindola +3 more
openaire +4 more sources
QUASIORTHOGONAL FREQUENCY ACCESS ON SUBCARRIER FREQUENCIES
Advanced Information Systems, 2019 In the article, it is described the principles of implementing the method based on quasiorthogonal frequency access on subcarrier frequencies. The key element of quasiorthogonal frequency access on subcarrier frequencies is the using of the individual distribution of frequency subcarriers in different frequency plans of the ensemble in the general ...
Sverhunova, Yuliia +3 more
openaire +4 more sources
Current limitations of cryogenic microwave oscillator frequency stability
, 2014 Technical paperCryogenic microwave oscillators built upon sapphire loaded cavity resonators exhibit excellent levels of frequency stability. Here we present an overview of the current understanding of the various processes and noise sources that limit ...
Parker, S. +7 more
core +1 more source
Efforts towards a low-temperature-sensitive physics package for vapor cell atomic clocks
Satellite Navigation, 2020 Strong environmental dependence is an intractable problem for vapor cell clocks, for which the high-temperature sensitivity of the physics package is considered one of the dominant reasons.
Qiang Hao +5 more
doaj +1 more source
Frequency-Hopping Wave Engineering with Metasurfaces
, 2023 Wave phenomena can be artificially engineered by scattering from metasurfaces, which aids in the design of radio-frequency and optical devices for wireless communication, sensing, imaging, wireless power transfer and bio/medical applications.
Daisuke Nita (16541400) +4 more
core +1 more source
Point spread function decoupling in computational fluorescence microscopy
Light: Science & ApplicationsComputational fluorescence microscopy constantly breaks through imaging performance through advanced optical modulation technologies; however, conventional theoretical modeling and experimental measurement approaches are challenging to meet the demand ...
Ziwei Wang +8 more
doaj +1 more source
Federal Reserve Bank of San Francisco, Working Paper Series, 2013 What determines the frequency domain properties of a stochastic process? How much risk comes from high frequencies, business cycle frequencies or low frequency swings? If these properties are under the influence of an agent, who is compensated by a principal according to the distribution of risk across frequencies, then the nature of this contracting ...
openaire +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source