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Solving Multi-Group Reflected Spherical Reactor System of Equations Using the Homotopy Perturbation Method

open access: yesMathematics, 2022
The solution of the complex neutron diffusion equations system of equations in a spherical nuclear reactor is presented using the homotopy perturbation method (HPM); the HPM is a remarkable approximation method that successfully solves different systems ...
Mohammad Shqair   +2 more
doaj   +1 more source

Outcomes of patients with COVID-19 requiring extracorporeal membrane oxygenation and continuous renal replacement therapy in the United States [PDF]

open access: yesAcute and Critical Care, 2023
Background Coronavirus disease 2019 (COVID-19) infection is associated with significant morbidity and mortality. Some patients develop severe acute respiratory distress syndrome and kidney failure requiring the combination of extracorporeal membrane ...
Carlos R Franco Palacios   +5 more
doaj   +1 more source

Controlling the Q-Point in Distributed Feedback Lasers Using a Numerical Optimization Methodology [PDF]

open access: yesEngineering and Technology Journal, 2019
In this paper, a new methodology for controlling the Q-point in the distributed feedback (DFB) lasers is proposed. The method based on reducing the DFB transient period (TP) by optimizing laser’s model parameters numerically.
Hisham Hisham
doaj   +1 more source

Systemic criticality

open access: yes, 2021
With high certainty, extreme weather events will intensify in their impact within the next 10 years due to climate change-induced increases in hazard probability of occurrence and simultaneous increases in socio-economic vulnerability. Data from previous mega-disasters show that losses from disruptions of critical services surpass the value of direct ...
Kruse, Philip M.   +2 more
openaire   +2 more sources

Pain in Veterans with COPD: relationship with physical activity and exercise capacity

open access: yesBMC Pulmonary Medicine, 2021
Background Pain is a common but underappreciated symptom experienced by people with Chronic Obstructive Pulmonary Disease (COPD). The relationships between pain and physical activity (PA) and exercise capacity are poorly understood.
Rebecca A. Raphaely   +5 more
doaj   +1 more source

Critical dynamics in glassy systems [PDF]

open access: yesPhysical Review E, 2013
24 pages, accepted for publication on PRE.
PARISI, Giorgio, Rizzo, T.
openaire   +5 more sources

Effective Rheology of Bi-viscous Non-newtonian Fluids in Porous Media

open access: yesFrontiers in Physics, 2020
We model the flow of bi-viscous non-Newtonian fluids in porous media by a square lattice where the links obey a piece-wise linear constitutive equation.
Laurent Talon, Alex Hansen
doaj   +1 more source

Dual use of e-cigarettes with conventional tobacco is associated with increased sleep latency in cross-sectional Study

open access: yesScientific Reports, 2022
The health effects of e-cigarettes remain relatively unknown, including their impact on sleep quality. We previously showed in a pilot study that females who smoke both conventional tobacco and vape e-cigarettes (dual users) had decreased sleep quality ...
Ira Advani   +14 more
doaj   +1 more source

On Criticalp-Laplacian Systems [PDF]

open access: yesAdvanced Nonlinear Studies, 2017
AbstractWe consider the criticalp-Laplacian system{-Δp⁢u-λ⁢ap⁢|u|a-2⁢u⁢|v|b=μ1⁢|u|p∗-2⁢u+α⁢γp∗⁢|u|α-2⁢u⁢|v|β,x∈Ω,-Δp⁢v-λ⁢bp⁢|u|a⁢|v|b-2⁢v=μ2⁢|v|p∗-2⁢v+β⁢γp∗⁢|u|α⁢|v|β-2⁢v,x∈Ω,u,v⁢ in ⁢D01,p⁢(Ω),\left\{\begin{aligned} &\displaystyle{-}\Delta_{p}u-\frac{\lambda a}{p}\lvert u% \rvert^{a-2}u\lvert v\rvert^{b}=\mu_{1}\lvert u\rvert^{p^{\ast}-2}u+\frac{%
Guo Zhenyu, Perera Kanishka, Zou Wenming
openaire   +4 more sources

Incremental Composition Process for the Construction of Component-Based Management Systems

open access: yesSensors, 2020
Cyber-physical systems (CPS) are composed of software and hardware components. Many such systems (e.g., IoT based systems) are created by composing existing systems together.
Tauseef Rana   +4 more
doaj   +1 more source

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