Results 41 to 50 of about 125,078 (291)
Effect of shield magnetization on variations in the frequency of onboard rubidium atomic clocks
St. Petersburg Polytechnical University Journal: Physics and MathematicsIn the paper, the results of a study of the influence of the magnetic shield magnetization on the relative frequency instability of small-sized rubidium atomic clocks have been presented.
Ermak Sergey +4 more
doaj +1 more source
Minimizing the Dick Effect in an Optical Lattice Clock
, 2009 We discuss the minimization of the Dick effect in an optical lattice clock. We show that optimizing the time sequence of operation of the clock can lead to a significant reduction of the clock stability degradation by the frequency noise of the ...
J. Lodewyck +8 more
core +2 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Purpose Air pollution has been linked to several neurological conditions, including stroke and neurodegenerative diseases. Evidence regarding its association with multiple sclerosis (MS) remains conflicting, limited by small sample sizes. Methods PubMed, Embase, Scopus, and Cochrane controlled register of trials (CENTRAL) were searched on ...
Ahmad A. Toubasi, Thuraya N. Al‐Sayegh
wiley +1 more source
Role of fluctuations and nonlinearities on field emission nanomechanical self-oscillators
, 2013 A theoretical and experimental description of the threshold, amplitude, and stability of a self-oscillating nanowire in a field emission configuration is presented.
AYARI, Anthony +4 more
core +2 more sources
On the relation between uncertainties of weighted frequency averages and the various types of Allan deviations [PDF]
Metrologia, 2015 The power spectral density in Fourier frequency domain, and the different variants of the Allan deviation (ADEV) in dependence on the averaging time are well established tools to analyse the fluctuation properties and frequency instability of an oscillatory signal. It is often supposed that the statistical uncertainty of a measured average frequency is
Benkler, Erik +2 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.Well‐structured graphene hybrid architectures featuring spatially resolved fluorescent properties represent a promising but so‐far elusive synthetic target. A robust and straightforward method for fabricating well‐organized graphene‐dye hybrid nanoassemblies through a combination of reductive patterning and conventional click chemistry is presented ...
Sabrin Al‐Fogra +12 more
wiley +1 more source
Earth and Space ScienceThe dominant external forcing to Earth's climate system is solar radiation, referred to as the solar spectral irradiance (SSI) and the total solar irradiance (TSI), which is the integral of SSI over all wavelengths.
O. Coddington +4 more
doaj +1 more source
Sensors, 2018 Generic modeling and analysis of a slow-light enhanced absorption spectroscopic gas sensor was proposed, using a mode-tuned, hollow-core, photonic band-gap fiber (HC-PBF) as an absorption gas cell.
Zhi-Fa Wu +7 more
doaj +1 more source
Mid-infrared photoacoustic gas monitoring driven by a gas-filled hollow-core fiber laser
Scientific Reports, 2021 Development of novel mid-infrared (MIR) lasers could ultimately boost emerging detection technologies towards innovative spectroscopic and imaging solutions.
Yazhou Wang +6 more
doaj +1 more source
Frontiers in Physics, 2022 In order to get a better tradeoff between the long lifetime and high performances of cesium beam atomic clocks, we proposed a design scheme of compact optically pumped cesium beam tube (OPCBT) based on hexapole magnetic focusing (HMF) system for the ...
Haijun Chen +3 more
doaj +1 more source