Results 1 to 10 of about 2,765,498 (300)

Investigation of Effective Parameters on Self-Nucleation Phenomenon in Semi-Crystalline Polymers [PDF]

open access: yesBaspārish, 2022
The crystallinity of semi-crystalline polymers is affected by both nucleation and growth processes, and the nucleation phase controls the kinetics of crystallization. In general, there are two types of homogeneous and heterogeneous nucleation.
Zahra Yagoobi   +4 more
doaj   +1 more source

Modeling and Dynamical Analysis of a Fractional-Order Predator–Prey System with Anti-Predator Behavior and a Holling Type IV Functional Response

open access: yesFractal and Fractional, 2023
We here investigate the dynamic behavior of continuous and discrete versions of a fractional-order predator–prey system with anti-predator behavior and a Holling type IV functional response.
Baiming Wang, Xianyi Li
doaj   +1 more source

Application of an Optimal Control Therapeutic Approach for the Memory-Regulated Infection Mechanism of Leprosy through Caputo–Fabrizio Fractional Derivative

open access: yesMathematics, 2023
Leprosy (Hansen’s disease) is an infectious, neglected tropical skin disease caused by the bacterium Mycobacterium leprae (M. leprae). It is crucial to note that the dynamic behavior of any living microorganism such as M.
Xianbing Cao   +4 more
doaj   +1 more source

Factors and Underlying Mechanisms That Influence the Repetitive Breakdown Characteristics of Corona-Stabilized Switches

open access: yesApplied Sciences, 2023
The corona-stabilized switch has the potential to be a high repetition rate pulsed-power switching device, but there has been limited investigation into its repetitive breakdown stability and insulation recovery characteristics.
Longjie Li   +5 more
doaj   +1 more source

Temperature-Dependent Fractional Dynamics in Pseudo-Capacitors with Carbon Nanotube Array/Polyaniline Electrodes

open access: yesNanomaterials, 2022
Pseudo-capacitors with electrodes based on polyaniline and vertically aligned multiwalled carbon nanotubes (PANI/VA-MWCNT) composite are studied. Fractional differential models of supercapacitors are briefly discussed.
Igor O. Yavtushenko   +4 more
doaj   +1 more source

Hopf Bifurcation in a Predator–Prey Model with Memory Effect in Predator and Anti-Predator Behaviour in Prey

open access: yesMathematics, 2023
In this paper, a diffusive predator–prey model with a memory effect in predator and anti-predator behaviour in prey is studied. The stability of the coexisting equilibrium and the existence of Hopf bifurcation are analysed by analysing the distribution ...
Wenqi Zhang, Dan Jin, Ruizhi Yang
doaj   +1 more source

Pulsed Radiation Therapy to Improve Systemic Control of Metastatic Cancer

open access: yesFrontiers in Oncology, 2021
Radiation therapy (RT) is emerging as an interventional modality in the cancer-immunity cycle, augmenting the activation of an adaptive immune response against tumors.
Kewen He   +13 more
doaj   +1 more source

Determination of Boron in Geological Samples by ICP-OES with Low-pressure Closed Digestion

open access: yesYankuang ceshi, 2020
BACKGROUND Total boron in geological samples is determined by inductively coupled plasma-optical emission spectroscopy (ICP-OES) with acid digestion. The key steps are preventing the loss of boron during the sample digestion stage and reducing matrix ...
DU Bao-hua   +3 more
doaj   +1 more source

Crystallinity and perfection in ethylene vitrimers probed by combined calorimetry, scattering, and time-domain NMR

open access: yesFrontiers in Soft Matter, 2023
The kinetics of crystallization and crystal-crystal transformations in ethylene vitrimers are studied by time-domain NMR. These vitrimers previously exhibited polymorphic transition of crystal structures, which are shown here to be distinguishable by NMR
Kay Saalwächter   +4 more
doaj   +1 more source

Deep Neural Network for the Behavioral Modeling of Memory Effects and Supply Dependency on 10-W Nonlinear Power Amplifiers [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
In this paper, a deep neural network (DNN) model is proposed for the behavioral modeling of nonlinear power amplifiers with supply dependency. Although the conventional nonlinear model, such as the Volterra series, has high accuracy, it is not commonly ...
Mihyang Kang, Sieon Lim, Youngcheol Park
doaj   +1 more source

Home - About - Disclaimer - Privacy