Results 11 to 20 of about 2,218,481 (259)

Multi-Year Continuous PM2.5 Measurements with the Federal Equivalent Method SHARP 5030 and Comparisons to Filter-Based and TEOM Measurements in Ontario, Canada

Atmosphere, 2018
Continuous monitoring of fine particulate matter (PM2.5) is important to provide near-real-time air quality information for public health protection, especially when ambient levels are elevated.
Yushan Su, Uwayemi Sofowote, Jerzy Debosz, Luc White, Anthony Munoz   +4 more
doaj   +1 more source

How to introduce an initial crack in phase field simulations to accurately predict the linear elastic fracture propagation threshold? [PDF]

Journal of Theoretical, Computational and Applied Mechanics
Variational phase field fracture models are now widely used to simulate crack propagation in structures. A critical aspect of these simulations is the correct determination of the propagation threshold of pre-existing cracks, as it highly relies on how ...
Flavien Loiseau, Veronique Lazarus
doaj   +1 more source

Giant magnetoresistance in perpendicularly magnetized synthetic antiferromagnetic coupling with Ir spacer

AIP Advances, 2018
Perpendicularly magnetized magnetic tunnel junction (p-MTJ) is a key element for developing high-density spin-transfer torque switching magnetoresistive random access memory.
A. Fukushima, T. Taniguchi, A. Sugihara, K. Yakushiji, H. Kubota, S. Yuasa   +5 more
doaj   +1 more source

Superconvergence of a finite element method for the time-fractional diffusion equation with a time-space dependent diffusivity

Advances in Difference Equations, 2020
In this work, a time-fractional diffusion problem with a time-space dependent diffusivity is considered. The solution of such a problem has a weak singularity at the initial time t = 0 $t=0$ .
Na An
doaj   +1 more source

Inelastic Solution for Power Law Fluid with Taylor Galerkin-Pressure Correction Finite Element Method: Axisymmetric Contraction Flows [PDF]

Journal of Applied Fluid Mechanics, 2023
In this study we examine the flow of inelastic fluids with various shear properties in axisymmetric contractions with various contraction ratios are selected as 4:1, 6:1 and 8:1 with both rounded-corner and sharp.
A. Sharhan, A. Al-Muslimawi
doaj   +1 more source

Numerical Simulation of the Electron Beam Welding and Post Welding Heat Treatment Coupling Process

High Temperature Materials and Processes, 2018
In this article, the electron beam welding and post welding heat treatment (PWHT) coupling process of nickel alloy GH80A is carried out using ABAQUS software. The thermo-mechanical coupling (TMC) model is considered in the simulation.
Hong Zhang, Zhengxing Men, Jiukai Li, Yongjie Liu, Qingyuan Wang   +4 more
doaj   +1 more source

Gold Nanodisks Plasmonic Array for Hydrogen Sensing at Low Temperature

Sensors, 2019
We present a novel plasmonic hydrogen sensor consisting of an array of gold nanodisks produced by lithography. The size, height, and spacing of the disks were optimized using finite element simulation to generate a sharp localized surface plasmon ...
Marco Sturaro, Gabriele Zacco, Pierfrancesco Zilio, Alessandro Surpi, Marco Bazzan, Alessandro Martucci   +5 more
doaj   +1 more source

Highly tunable Terahertz filter with magneto-optical Bragg grating formed in semiconductor-insulator-semiconductor waveguides

AIP Advances, 2013
A highly tunable terahertz (THz) filter with magneto-optical Bragg grating formed in semiconductor-insulator-semiconductor waveguides is proposed and demonstrated numerically by means of the Finite Element Method.
Kangwen Li, Xunpeng Ma, Zuyin Zhang, Lina Wang, Haifeng Hu, Yun Xu, Guofeng Song   +6 more
doaj   +1 more source

Characterizations of *-antiderivable mappings on operator algebras

Open Mathematics, 2022
Let A{\mathcal{A}} be a ∗\ast -algebra, ℳ{\mathcal{ {\mathcal M} }} be a ∗\ast -A{\mathcal{A}}-bimodule, and δ\delta be a linear mapping from A{\mathcal{A}} into ℳ{\mathcal{ {\mathcal M} }}.
An Guangyu, Zhang Xueli, He Jun
doaj   +1 more source

Design and experiment of high load-bearing acrylic connection node for the world's largest acrylic spherical vessel

Materials Research Express, 2023
Acrylic is a kind of polymer material and is gradually applied to load-bearing components. The working stress and ultimate bearing capacity of the acrylic structure are the main design indexes.
Xiaohui Qian, Xiaoyan Ma, Yuekun Heng, Wei He, Zhonghua Qin, Hongqiang Tang, Jianxia Xiao, Gaofeng Zhang, Wei Cheng, Lei Li, Tao Chen, Chang Liu, Shaojing Hou, Yatian Pei, Xiaoyu Yang   +14 more
doaj   +1 more source