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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

Critical Distribution System

open access: yesCoRR, 2022
Distribution crises are manifested by a great discrepancy between the demand and the supply of a critically important good, for a period of time. In this paper, we suggest a hybrid market mechanism for minimising the negative consequences of sudden distribution crises.
Anetta Jedlickova   +2 more
openaire   +2 more sources

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

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

Criticality of Relaxation in Dislocation Systems [PDF]

open access: yesPhysical Review Letters, 2011
Relaxation processes of dislocation systems are studied by two-dimensional dynamical simulations. In order to capture generic features, three physically different scenarios were studied and power-law decays found for various physical quantities. Our main finding is that all these are the consequence of the underlying scaling property of the dislocation
Ispánovity PD   +4 more
openaire   +4 more sources

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

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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