Results 21 to 30 of about 428,648 (262)

Characteristics and Impacts of Water–Thermal Variation on Grain Yield in the Henan Province, China, on Multiple Time Scales

open access: yesAgronomy, 2023
Water and thermal resources are changing significantly because of climate change, further affecting important crops, such as grains, worldwide. Previous studies on climate change trends and their impacts on grain yield were mainly conducted on a single ...
Xuefang Feng   +5 more
doaj   +1 more source

A Multiple Time Scales Rolling Coordinative Dispatching Method for an Island Microgrid with High Proportion Tidal Current Energy Access and Demand Response Resources

open access: yesEnergies, 2022
Currently, the ocean energy strategy is rapidly developing, and a high proportionate tidal current energy grid connection presents significant obstacles to the planning and secure and stable operation of an island microgrid.
Yani Ouyang   +3 more
doaj   +1 more source

Detecting separate time scales in genetic expression data

open access: yesBMC Genomics, 2010
Background Biological processes occur on a vast range of time scales, and many of them occur concurrently. As a result, system-wide measurements of gene expression have the potential to capture many of these processes simultaneously.
Fink Thomas MA   +4 more
doaj   +1 more source

Stability Analysis of a Damped Nonlinear Wave Equation [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2020
The current manuscript is concerned with extracting an analytical approximate periodic solution of a damped cubic nonlinear Klein-Gordon equation. The Riemann-Liouville fractional calculus is utilized to obtain an analytic approximate solution.
Yusry O. El-Dib   +2 more
doaj   +1 more source

Multiple time scales of bank-full discharge in the Yellow River

open access: yesShui kexue jinzhan, 2012
Under the influence of climate changes,the hydrologic system has the characteristics of multiple time scales.The bank-full discharge,as a function of inflow conditions,also has the characteristics of multiple time scales.This phenomenon was studied based
ZHANG Yan-yan, ZHONG De-yu, WU Bao-sheng
doaj   +1 more source

Near scale-free dynamics in neural population activity of waking/sleeping rats revealed by multiscale analysis. [PDF]

open access: yesPLoS ONE, 2010
A neuron embedded in an intact brain, unlike an isolated neuron, participates in network activity at various spatial resolutions. Such multiple scale spatial dynamics is potentially reflected in multiple time scales of temporal dynamics. We identify such
Leonid A Safonov   +5 more
doaj   +1 more source

Nonlinear vibration and stability of a moving printing web with variable density based on the method of multiple scales

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2019
An axially moving printing web with variable density in a printing process causes a geometric nonlinear vibration, and a nonlinear vibration system is established using the von Karman nonlinear plate theory and the D’Alembert principle.
Mingyue Shao   +4 more
doaj   +1 more source

A Class of Shock Wave Solution to Singularly Perturbed Nonlinear Time-Delay Evolution Equations

open access: yesShock and Vibration, 2020
Nonlinear singularly perturbed problem for time-delay evolution equation with two parameters is studied. Using the variables of the multiple scales method, homogeneous equilibrium method, and approximation expansion method from the singularly perturbed ...
Yi-Hu Feng, Lei Hou
doaj   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks   +5 more
wiley   +1 more source

Saliency Detection Method Using Hypergraphs on Adaptive Multiscales

open access: yesIEEE Access, 2018
Saliency detection plays an important role in the fields of image processing and computer vision. We present an improved saliency detection method by means of hypergraphs on adaptive multi-scales (HAM).
Feilin Han, Aili Han, Jing Hao
doaj   +1 more source

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