Results 11 to 20 of about 439,830 (379)
Limitations of Thermal Stability Analysis via In-Situ TEM/Heating Experiments
Nanomaterials, 2021 This work highlights some limitations of thermal stability analysis via in-situ transmission electron microscopy (TEM)-annealing experiments on ultrafine and nanocrystalline materials.
Osman El-Atwani +4 more
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Economic growth and productivity: Italy and the role of knowledge
PSL Quarterly Review, 2020 The COVID-19 crisis has hit Italy severely: by mid-2020, GDP had returned to the level observed in 1993. This is the result not only of its sharp collapse in the first half of 2020, but also of its weak growth since the 1990s.
Ignazio Visco
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On stagnation of the DGMRES method [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2022 Let $A$ be an $n$-by-$n$ matrix with index $\alpha>0$ and $b \in \mathbb{C}^n$. In this paper, the problem of stagnation of the DGMRES method for the singular linear system $Ax=b$ is considered. We show that DGMRES$(A, b, \alpha)$ has partial stagnation
F. Kyanfar
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Considerations for large building water quality after extended stagnation
AWWA Water Science, 2020 The unprecedented number of building closures related to the coronavirus disease (COVID‐19) pandemic is concerning because water stagnation will occur in many buildings that do not have water management plans in place.
C. Proctor +8 more
semanticscholar +1 more source
Hybrid nanofluid flow towards a stagnation point on a stretching/shrinking cylinder
Scientific Reports, 2020 This paper examines the stagnation point flow towards a stretching/shrinking cylinder in a hybrid nanofluid. Here, copper (Cu) and alumina (Al 2 O 3 ) are considered as the hybrid nanoparticles while water as the base fluid.
I. Waini, Anuar Ishak, I. Pop
semanticscholar +1 more source
Innovation Stagnation in Polish Industry?
Gospodarka Narodowa. The Polish Journal of Economics, 2021 The subject of research in this paper is the development of innovativeness in Polish industry from 2006 to 2017. The paper’s basic aim is to evaluate the level of innovativeness in Polish industry during this period amid the inflow of European Union ...
Andrzej H. Jasiński
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THE DYNAMICS OF STAGNATION: A PANEL ANALYSIS OF THE ONSET AND CONTINUATION OF STAGNATION [PDF]
Macroeconomic Dynamics, 2016 This paper analyzes periods of economic stagnation in a panel of countries. We test whether stagnation can be predicted by institutional characteristics and political shocks and compare the impacts of such variables with those of traditional macroeconomic variables.
Denis de Crombrugghe +2 more
openaire +3 more sources
Nested separatrices in simple shear flows: the effect of localized disturbances on stagnation lines [PDF]
, 2005 The effects of localized two-dimensional disturbances on the structure of shear flows featuring a stagnation line are investigated. A simple superposition of a planar Couette flow and Moffatt's [J. Fluid Mech.
Gaskell, P.H. +2 more
core +1 more source
A New Modified Firefly Algorithm for Optimizing a Supply Chain Network Problem
Applied Sciences, 2018 Firefly algorithm is among the nature-inspired optimization algorithms. The standard firefly algorithm has been successfully applied to many engineering problems. However, this algorithm might be stuck in stagnation (the solutions do not enhance anymore)
Ashkan Memari +3 more
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Energies, 2021 Stagnation is the transient state of a solar thermal system under high solar irradiation where the useful solar gain is zero. Both flat-plate collectors with selective absorber coatings and vacuum-tube collectors exhibit stagnation temperatures far above
Ralph Eismann +2 more
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