Results 51 to 60 of about 222,754 (312)
Dynamics of the wakefield of a multi-petawatt, femtosecond laser pulse in a configuration with ultrarelativistic electrons [PDF]
, 2014 The wake field excitation in an unmagnetized plasma by a multi-petawatt, femtosecond, pancake-shaped laser pulse is described both analytically and numerically in the regime with ultrarelativistic electron jitter velocities, when the plasma electrons are
Belic, M., Fedele, R., Jovanovic, D.
core +3 more sources
Remote Sensing, 2019 Accurate prediction of wind turbine wakes is important for more efficient design and operation of wind parks. Volumetric wake measurements of nacelle-mounted Doppler lidars are used to characterize the wake of a full-scale wind turbine and to validate an
Peter Brugger +4 more
doaj +1 more source
A double-Gaussian wake model considering yaw misalignment
International Journal of Renewable Energy DevelopmentA wake steering has been known to effectively increase wind farm production by deflecting the upstream turbines’ wakes via yaw misalignment, thus minimizing their negative impacts on the downstream turbines' performances.
Qidun Maulana Binu Soesanto +2 more
doaj +1 more source
Assessing the impact of velocity dip and wake coefficients on velocity prediction for open channel flows [PDF]
, 2019 The aim of the present study is to assess the impact of the velocity-dip and wake strength on the velocity prediction using the dip modified laws. The dip modified laws, particularly the dip modified log wake law (DMLW-law), are preferred over the ...
Al-Salih, O, Alawadi, WAAK, Prasad, TD
core +2 more sources
The aerodynamic effects of wing–wing interaction in flapping insect wings [PDF]
, 2005 We employed a dynamically scaled mechanical model of the small fruit fly Drosophila melanogaster (Reynolds number 100–200) to investigate force enhancement due to contralateral wing interactions during stroke reversal (the 'clap-and-fling').
Dickinson, Michael +2 more
core +2 more sources
Wake steering of multirotor wind turbines
Wind Energy, 2021 In this paper, wake steering is applied to multirotor turbines to determine whether it has the potential to reduce wind plant wake losses. Through application of rotor yaw to multirotor turbines, a new degree of freedom is introduced to wind farm control
Gustav A. Speakman +3 more
doaj +1 more source
Metastability of solitary roll wave solutions of the St. Venant equations with viscosity [PDF]
, 2010 We study by a combination of numerical and analytical Evans function techniques the stability of solitary wave solutions of the St. Venant equations for viscous shallow-water flow down an incline, and related models.
Alexander +51 more
core +2 more sources
Influence of blade aerodynamic model on the prediction of helicopter high-frequency airloads [PDF]
, 2011 Brown’s vorticity transport model has been used to investigate the influence of the blade aerodynamic model on the accuracy with which the high-frequency airloads associated with helicopter blade–vortex interactions can be predicted.
Benoît B. +18 more
core +1 more source
Inpatient Food Insecurity and Pediatric Hematology Oncology Hospitalization Outcomes
Pediatric Blood &Cancer, EarlyView.ABSTRACT Children with cancer and blood disorders are at risk for food insecurity (FI). We aimed to describe the association of inpatient food insecurity (IFI) and hospitalization outcomes among patients admitted to the pediatric hematology oncology service. Of 325 caregivers screened for IFI, 60 (18.6%) screened positive.
Joanna M. Robles +4 more
wiley +1 more source
Short-range wakefields in an L-shaped corrugated structure
Physical Review Accelerators and Beams, 2023 We present analytical and numerical studies of short-range wakefields in an L-shaped corrugated structure. This structure has variable streaking polarization and the quadrupole wakefield component is suppressed when the beam moves with equal distances to
Weilun Qin +2 more
doaj +1 more source