Results 21 to 30 of about 459,919 (378)
Oscillatory oblique stagnation-point flow toward a plane wall [PDF]
, 2012 Two-dimensional oscillatory oblique stagnation-point flow toward a plane wall is investigated. The problem is a eneralisation of the steady oblique stagnation-point flow examined by previous workers.
A. Qamar +23 more
core +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
doaj +1 more source
Secular Stagnation? The Effect of Aging on Economic Growth in the Age of Automation
, 2017 Several recent theories emphasize the negative effects of an aging population on economic growth, either because of the lower labor force participation and productivity of older workers or because aging will create an excess of savings over desired ...
Daron Acemoglu, P. Restrepo
semanticscholar +1 more source
Differential Evolution Algorithm With Tracking Mechanism and Backtracking Mechanism
IEEE Access, 2018 Differential evolution (DE) is a simple and effective evolutionary algorithm that can be used to solve various optimization problems. In general, the population of DE tends to fall into stagnation or premature convergence so that it is unable to converge
Laizhong Cui +7 more
doaj +1 more source
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
doaj +1 more source
Observable Emission Features of Black Hole GRMHD Jets on Event Horizon Scales [PDF]
, 2017 The general-relativistic magnetohydrodynamical (GRMHD) formulation for black hole-powered jets naturally gives rise to a stagnation surface, wherefrom inflows and outflows along magnetic field lines that thread the black hole event horizon originate.
Asada, Keiichi +5 more
core +2 more sources
On Secular Stagnation in the Industrialized World
Brookings Papers on Economic Activity, 2019 :We argue that the economy of the industrialized world, taken as a whole, is currently—and for the foreseeable future will remain—highly prone to secular stagnation.
Łukasz Rachel, L. Summers
semanticscholar +1 more source
Secular Stagnation or Stagnation Policy? Steindl after Summers [PDF]
SSRN Electronic Journal, 2015 The debate on secular stagnation suffers from vagueness and several shortcomings, which affect its economic policy implications. In this work we provide an alternative view on the advanced economies’ tendencies to stagnation, based on Josef Steindl’s contributions.
openaire +4 more sources
Emission characteristics and dynamics of the stagnation layer in colliding laser produced plasmas [PDF]
, 2010 The expansion dynamics of ion and neutral species in laterally colliding laser produced aluminum plasmas have been investigated using time and space resolved optical emission spectroscopies and spectrally and angularly resolved fast imaging. The emission
Costello, John T. +4 more
core +1 more source
Drinking water microbiome assembly induced by water stagnation
The ISME Journal, 2018 What happens to tap water when you are away from home? Day-to-day water stagnation in building plumbing can potentially result in water quality deterioration (e.g., lead release or pathogen proliferation), which is a major public health concern. However,
Fangqiong Ling +3 more
semanticscholar +1 more source