Results 41 to 50 of about 265,562 (294)
Sustained investment surges [PDF]
Oxford Economic Papers, 2019 AbstractExisting empirical studies have mainly focused on determinants of average investment levels. Instead, we investigate episodes of accelerated capital stock growth having a duration of eight years or longer. We find that episodes are relatively common, even in low-growth regions, but more so in middle-income and Asian countries. After identifying
Libman, Emiliano +2 more
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Time to surge concept and surge control for acceleration performance [PDF]
IFAC Proceedings Volumes, 2008 Surge is a dangerous instability that can occur in compressors. It is avoided using a valve that reduces the compressor pressure.
Leufvén, Oskar, Eriksson, Lars
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Surge-Energy and Overvoltage Ruggedness of P-Gate GaN HEMTs
IEEE transactions on power electronics, 2020 An essential ruggedness of power devices is the capability of safely withstanding the surge energy. The surge ruggedness of the GaN high-electron-mobility transistor (HEMT), a power transistor with no or minimal avalanche capability, has not been fully ...
Ruizhe Zhang +4 more
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METHODS OF THE FORECAST OF SAFE WORK OF A ROAD BED OF THE HIGHWAY
Вестник Дагестанского государственного технического университета: Технические науки, 2016 Methods of the forecast of the parameter of the safe work earth are brought In article onpallet, as which is accepted reliability of the work for period between heavy repairs at reasonable conditions of the usages. Reliability is Considered as estimation
M. O. Allaev
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Prediction of Stall Phenomenon in Blade-to-Blade Passage of Axial Flow Compressor [PDF]
Engineering and Technology Journal, 2009 The flow field between two blades was analyzed numerically by solving thesteady, two dimensional and incompressible (time-mass averaged Navier- Stokesequations).
Arkan K. Al-Taie, Abbas Abdul-Hussein
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Covid-19: US faces “surge upon a surge” [PDF]
BMJ, 2020 The US is likely to experience “a surge upon a surge” of covid-19 cases as a result of millions of people traveling over the Thanksgiving holiday weekend (26-29 November) to celebrate with family and friends, the leading US expert on the disease has predicted.1 Although the Centers for Disease Control and Prevention (CDC) asked people to stay home for
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Unstable Flow Structures Present at Different Rotational Velocities of the Centrifugal Compressor
Energies, 2020 Unstable flow structures cause inevitable energy losses in all power energy systems, including turbomachines. In this study, a set of analyses was conducted with the use of spectral maps on the pressure signals obtained from an industrial centrifugal ...
Grzegorz Liśkiewicz +6 more
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Symposium - International Astronomical Union, 1980 This paper reports on the application of a siphon flow model to the late stage of a surge observed in the UV radiation by the S055 experiment on board Skylab. The MgX λ625 and OVI λ1032 emissions from the density distributions occurring in flows which become supersonic at the top of the loop agree with the observations, indicating a pressure drop ...
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Decline in Stroke Presentations During COVID-19 Surge
Stroke, 2020 Supplemental Digital Content is available in the text. Background and Purpose: We aimed to investigate the acute stroke presentations during the coronavirus disease 2019 (COVID-19) pandemic.
K. Uchino
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PathogensDespite coordinated efforts at global level, through the Global Polio Eradication Initiative (GPEI), poliomyelitis disease (Polio) is still a major public health issue.
Fikru Abebe +6 more
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