Results 1 to 10 of about 1,084,521 (120)

Identification of structural breaks and change points of rainfall time series in mountainous areas (Case study: Khorramabad Synoptic Station) [PDF]

open access: yesمطالعات جغرافیایی مناطق کوهستانی, 2021
Identifying trends and structural breaks in the rainfall time series is one of the most important challenges in climate change studies. As the discovery of such structural breaks can help assess future scenarios and atmospheric phenomena such as floods ...
Hamid Mirhashemi
doaj   +1 more source

Comparison of intraocular pressure peak and fluctuations among Filipino patients with non-glaucomatous eyes and glaucoma suspects using water drinking test and diurnal intraocular pressure [PDF]

open access: yesInternational Journal of Ophthalmology, 2021
AIM: To compare the intraocular pressure (IOP) peaks and fluctuations using water drinking tests (WDTs) and mean diurnal IOP among Filipino patients with normal eyes and glaucoma suspects METHODS: This prospective study included normal and glaucoma ...
Anelisa Koh, Cynthia Verzosa
doaj   +1 more source

Self-Heating of Annealed Ti/Al/Ni/Au Contacts to Two-Dimensional Electron Gas in AlGaN/GaN Heterostructures

open access: yesApplied Sciences, 2022
In this work, we investigated the self-heating effects of annealed Ti/Al/Ni/Au ohmic contacts and two-dimensional electron gas (2DEG) in AlGaN/GaN heterostructures under strong electric field by using the short pulse current–voltage and microwave noise ...
Emilis Šermukšnis   +4 more
doaj   +1 more source

« Lo, here I lie » : les jeux du paradoxe chez Donne

open access: yesEtudes Epistémè, 2021
: Although Donne’s works hardly ever allude to Early Modern games, they are far from being play-free. In them, however, play takes on a poetic guise. This article first examines the context in which Donne started to write, in the 1590s.
Guillaume Fourcade
doaj   +1 more source

Keyhole fluctuation and pore formation mechanisms during laser powder bed fusion additive manufacturing

open access: yesNature Communications, 2021
Keyhole porosity is a key concern in laser powder-bed fusion (LPBF), potentially impacting component fatigue life. However, some keyhole porosity formation mechanisms, e.g., keyhole fluctuation, collapse and bubble growth and shrinkage, remain unclear ...
Yu-Ze Huang   +7 more
semanticscholar   +1 more source

The Cross-correlation Structure of Tehran Stock Exchange Indexes by Multifractal Detrended Fluctuation Analysis [PDF]

open access: yesتحقیقات مالی, 2012
One of the latest approaches for analyzing the coupled time series is MF-DXA. This technique has been used in many disciplines such as finance. In this paper, we have analyzed Tehran Stock Exchange indexes by MF-DXA and have found a scaling behavior ...
Reza Tehrani   +2 more
doaj   +1 more source

Stochastic thermodynamics, fluctuation theorems and molecular machines [PDF]

open access: yesReports on progress in physics. Physical Society, 2012
Stochastic thermodynamics as reviewed here systematically provides a framework for extending the notions of classical thermodynamics such as work, heat and entropy production to the level of individual trajectories of well-defined non-equilibrium ...
U. Seifert
semanticscholar   +1 more source

Multifractal Detrended Fluctuation Analysis of Nonstationary Time Series [PDF]

open access: yes, 2002
We develop a method for the multifractal characterization of nonstationary time series, which is based on a generalization of the detrended fluctuation analysis (DFA).
J. Kantelhardt   +5 more
semanticscholar   +1 more source

Impact of instantaneous solar irradiance on refrigeration characteristics of household PCM storage air conditioning directly driven by distributed photovoltaic energy

open access: yesEnergy Science & Engineering, 2022
Mature and inexpensive ice thermal storage was employed to replace battery bank in energy storage, and photovoltaic directly driven technology was also combined in this paper.
Yongfeng Xu, Ming Li
doaj   +1 more source

Entropy production fluctuation theorem and the nonequilibrium work relation for free energy differences. [PDF]

open access: yesPhysical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 1999
There are only a very few known relations in statistical dynamics that are valid for systems driven arbitrarily far-from-equilibrium. One of these is the fluctuation theorem, which places conditions on the entropy production probability distribution of ...
G. Crooks
semanticscholar   +1 more source

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