Results 21 to 30 of about 7,472,397 (345)

Exponential growth of out-of-time-order correlator without chaos: inverted harmonic oscillator [PDF]

open access: yesJournal of High Energy Physics, 2020
We provide a detailed examination of a thermal out-of-time-order correlator (OTOC) growing exponentially in time in systems without chaos. The system is a one-dimensional quantum mechanics with a potential whose part is an inverted harmonic oscillator ...
K. Hashimoto   +3 more
semanticscholar   +1 more source

Growth of science in activated sludge modelling – a critical bibliometric review

open access: yesWater Science and Technology, 2021
In this paper, the tool of bibliometric analysis is applied to the field of activated sludge modelling and its suitability as a first step of a literature analysis is assessed.
Markus Ahnert, Peter Krebs
doaj   +1 more source

Analyzing the misperception of exponential growth in graphs

open access: yesCognition, 2021
Exponential growth is frequently underestimated, an error that can have a heavy social cost in the context of epidemics. To clarify its origins, we measured the human capacity (N = 521) to extrapolate linear and exponential trends in scatterplots.
Lorenzo Ciccione   +2 more
semanticscholar   +1 more source

What is the Real Threat of Information Explosion?

open access: yesActa Informatica Pragensia, 2022
The text is devoted to a consideration of the "information explosion" phenomenon. The exponential growth of publications is compared to the (similarly exponential) growth of population, especially in the countries where most of the publications are ...
Petr Strossa
doaj   +1 more source

How to suppress exponential growth—on the parametric resonance of photons in an axion background [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2020
Axion-photon interactions can lead to an enhancement of the electromagnetic field by parametric resonance in the presence of a cold axion background, for modes with a frequency close to half the axion mass.
Ariel Arza, T. Schwetz, Elisa Todarello
semanticscholar   +1 more source

Global Progress in Oil and Gas Well Research Using Bibliometric Analysis Based on VOSviewer and CiteSpace

open access: yesEnergies, 2022
Studies related to oil and gas wells have attracted worldwide interest due to the increasing energy shortfall and the requirement of sustainable development and environmental protection.
Pan Zhang   +3 more
doaj   +1 more source

Forecasting COVID-19

open access: yesFrontiers in Physics, 2020
The World Health Organization declared the coronavirus disease 2019 a pandemic on March 11th, pointing to the over 118,000 cases in over 110 countries and territories around the world at that time.
Matjaž Perc   +6 more
doaj   +1 more source

Concentration-Compactness Principle for Trudinger–Moser’s Inequalities on Riemannian Manifolds and Heisenberg Groups: A Completely Symmetrization-Free Argument

open access: yesAdvanced Nonlinear Studies, 2021
The concentration-compactness principle for the Trudinger–Moser-type inequality in the Euclidean space was established crucially relying on the Pólya–Szegő inequality which allows to adapt the symmetrization argument.
Li Jungang, Lu Guozhen, Zhu Maochun
doaj   +1 more source

Mathematical and Statistical Analysis of Doubling Times to Investigate the Early Spread of Epidemics: Application to the COVID-19 Pandemic

open access: yesMathematics, 2021
Simple mathematical tools are needed to quantify the threat posed by emerging and re-emerging infectious disease outbreaks using minimal data capturing the outbreak trajectory.
Alexandra Smirnova   +2 more
doaj   +1 more source

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