Results 31 to 40 of about 301,538 (305)
Clinical characteristics of unknown symptom onset stroke patients with and without diffusion-weighted imaging and fluid-attenuated inversion recovery mismatch [PDF]
, 2017 Background: Diffusion-weighted imaging (DWI) and fluid-attenuated inversion recovery (FLAIR) mismatch was suggested to identify stroke patients with unknown time of symptom onset likely to be within the time window for thrombolysis. Aims: We aimed
Boutitie, Florent +18 more
core +2 more sources
Systematic Review of the “Pragmatism” of Pragmatic Critical Care Trials
Critical Care Explorations, 2022 OBJECTIVES:. To assess the pragmatism of published critical care randomized controlled trials self-described as pragmatic using a validated tool. DATA SOURCES:. Medical Literature Analysis and Retrieval Online database and PubMed interface from inception
Jessica A. Palakshappa, MD, MS +4 more
doaj +1 more source
Control-oriented model for secondary effects of wake steering [PDF]
Wind Energy Science, 2021 This paper presents a model to incorporate the secondary effects of wake steering in large arrays of turbines. Previous models have focused on the aerodynamic interaction of wake steering between two turbines. The model proposed in this paper builds on
J. King +6 more
doaj +1 more source
Employment recovery in the wake of the COVID-19 pandemic [PDF]
Monthly Labor Review, 2020 The coronavirus disease 2019 (COVID-19) pandemic’s impact on the U.S. labor market is unprecedented. This article reviews economic research on recent pandemic-related job losses in the United States in order to understand the prospects for employment recovery.
Elizabeth Handwerker +4 more
openaire +1 more source
Dynamic induction control for mitigation of wake-induced power losses: a wind tunnel study under different inflow conditions [PDF]
Wind Energy ScienceDynamic induction control (DIC), also known as the pulse method, is a wake mixing strategy that has shown promising results for mitigating wake-induced power losses in wind farms. It relies on dynamic collective blade pitching to enhance turbulent mixing,
M. A. Zúñiga Inestroza +7 more
doaj +1 more source
New WAKE Key Recovery Protocol on M-commerce [PDF]
, 2003 The ASPeCT project first tried to support the key recovery in wireless authentication and key establishment protocol Since then, a variety of protocols have been proposed. In this thesis, problems of conventional protocols are analyzed and new protocol is suggested to solve those problems.
Yong-ho Lee, Im-yeong Lee, Hyung-woo Lee
openaire +1 more source
The Neuroscientist, 2014 The overall function of sleep is hypothesized to provide “recovery” after preceding waking activities, thereby ensuring optimal functioning during subsequent wakefulness. However, the functional significance of the temporal dynamics of sleep, manifested in the slow homeostatic process and the alternation between non–rapid eye movement (NREM) and REM ...
Vyazovskiy, Vladyslav, Delogu, Alessio
openaire +5 more sources
Energies, 2019 The Reynolds-averaged Navier−Stokes (RANS)-based generalized actuator disc method along with the Reynolds stress model (AD/RANS_RSM) is assessed for wind turbine wake simulation.
Linlin Tian +4 more
doaj +1 more source
Segmented Gurney Flaps for Enhanced Wind Turbine Wake Recovery
, 2023 Abstract. The wind turbine wake is a downstream region of velocity deficit, featuring higher turbulence and a complex helical vortex structure. In low ambient turbulence and low tip speed ratio conditions, the wind turbine wake is extremely stable. The impact of the velocity deficit is a power loss for the downstream wind turbine, which scales with the
Nirav Dangi +4 more
openaire +2 more sources
Power curve and wake analyses of the Vestas multi-rotor demonstrator [PDF]
Wind Energy Science, 2019 Numerical simulations of the Vestas multi-rotor demonstrator (4R-V29) are compared with field measurements of power performance and remote sensing measurements of the wake deficit from a short-range WindScanner lidar system.
M. P. van der Laan +11 more
doaj +1 more source