Results 1 to 10 of about 3,745,577 (266)

Investigation of the Hydrological Response to Meteorological Drought in Kashkan Sub-Catchments [PDF]

open access: yesمحیط زیست و مهندسی آب, 2022
The meteorological drought phenomenon and its relationship to the hydrological response of the catchments are of particular importance in the development of programs related to the comprehensive water management of the basin.
Rahim Kazemi   +2 more
doaj   +1 more source

Internally Positive Representation to Stability of Delayed Timescale-Type Differential- Difference Equation

open access: yesIEEE Access, 2021
This paper considers exponential stability for a class of timescale-type differential-difference equation with bounded time-varying delay. Based on time scale theory, internally positive representation technique, as well as the existing exponential ...
Qiang Xiao, Yin Yang, Tingwen Huang
doaj   +1 more source

Time Scale for Scour Beneath Pipelines Due to Long-Crested and Short-Crested Nonlinear Random Waves Plus Current

open access: yesJournal of Marine Science and Engineering, 2021
This article derives the time scale of pipeline scour caused by 2D (long-crested) and 3D (short-crested) nonlinear irregular waves and current for wave-dominant flow.
Dag Myrhaug, Muk Chen Ong
doaj   +1 more source

Oscillation of noncanonical fourth-order dynamic equations

open access: yesApplied Mathematics in Science and Engineering, 2023
We present two sufficient conditions for the oscillatory behaviour of a class of noncanonical fourth-order dynamic equations on arbitrary time scales. An illustrative example is included to show that new criteria improve related results reported in the ...
Qingmin Liu   +3 more
doaj   +1 more source

A Multi-Scale Time Method for the State of Charge and Parameter Estimation of Lithium-Ion Batteries Using MIUKF-EKF

open access: yesFrontiers in Energy Research, 2022
Accurate state estimation is essential for the safe and reliable operation of lithium-ion batteries. However, the accuracy of the battery state estimation depends on the accuracy of the battery parameters.
Shiyu Ji, Yi Sun, Zexing Chen, Wu Liao
doaj   +1 more source

Santa Ana Winds: Fractal-Based Analysis in a Semi-Arid Zone of Northern Mexico

open access: yesAtmosphere, 2021
A fractal analysis based on the time series of precipitation, temperature, pressure, relative humidity, and wind speed was performed for 16 weather stations located in the hydrographic basin of the Guadalupe River in Baja California, Mexico.
Yeraldin Serpa-Usta   +8 more
doaj   +1 more source

Qi Type Diamond-Alpha Integral Inequalities

open access: yesMathematics, 2021
In this paper, we establish sufficient conditions for Qi type diamond-alpha integral inequalities and its generalized form on time scales.
Zhong-Xuan Mao   +5 more
doaj   +1 more source

Hermite-Hadamard Type Inequalities for the Class of Convex Functions on Time Scale

open access: yesMathematics, 2019
We investigate a time scale version of two auxiliary functions for the class of convex functions. We derive several novel dynamic inequalities for these classes of convex functions.
Saima Rashid   +4 more
doaj   +1 more source

Irreversibility time scale [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2006
Entropy creation rate is introduced for a system interacting with thermostats (i.e., for a system subject to internal conservative forces interacting with “external” thermostats via conservative forces) and a fluctuation theorem for it is proved. As an application, a time scale is introduced, to be interpreted as the time over which irreversibility ...
openaire   +5 more sources

Crustal evolution events in the Chinese continent: evidence from a zircon U-Pb database

open access: yesInternational Journal of Digital Earth, 2020
The zircon U-Pb chronology database provides a good opportunity to obtain important zircon growth peak periods in the Earth's history so as to study the origin and evolution of the crust.
Yujing Wu   +17 more
doaj   +1 more source

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