Results 51 to 60 of about 149,179 (315)

Effects of Wing Kinematics on Aerodynamics Performance for a Pigeon-Inspired Flapping Wing

open access: yesBiomimetics
The wing kinematics of birds plays a significant role in their excellent unsteady aerodynamic performance. However, most studies investigate the influence of different kinematic parameters of flapping wings on their aerodynamic performance based on ...
Tao Wu, Kai Wang, Qiang Jia, Jie Ding
doaj   +1 more source

An Improved Multi-Objective Particle Swarm Optimization Method for Rotor Airfoil Design

open access: yesAerospace, 2023
In this study, a multi-objective aerodynamic optimization is performed on the rotor airfoil via an improved MOPSO (multi-objective particle swarm optimization) method.
Yongchuan Wu, Gang Sun, Jun Tao
doaj   +1 more source

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash   +4 more
wiley   +1 more source

The effect of variations in first- and second-order derivatives on airfoil aerodynamic performance

open access: yesEngineering Applications of Computational Fluid Mechanics, 2017
The geometric factors which influence airfoil aerodynamic performance are attributed to variations in local first- and second-order curvature derivatives.
Penghui Yi   +4 more
doaj   +1 more source

Reduction of aerodynamic noise of single-inlet centrifugal fan with inclined volute tongue

open access: yesMeasurement + Control, 2020
The effect of inclined volute tongue on the aerodynamic noise and performance of a centrifugal fan was investigated by experimental test in this article.
Wenyue Hao   +7 more
doaj   +1 more source

Robust aerodynamic design of variable speed wind turbine rotors [PDF]

open access: yes, 2012
This study focuses on the robust aerodynamic design of the bladed rotor of small horizontal axis wind turbines. The optimization process also considers the effects of manufacturing and assembly tolerances on the yearly energy production.
Campobasso, Michele Sergio   +2 more
core  

Germline TP53 Mutations Causing Diamond–Blackfan Anemia: A French Report

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Diamond–Blackfan anemia is a rare congenital erythroblastopenia typically caused by mutations in ribosomal protein genes. Recently, gain‐of‐function mutations in TP53 have been identified as a novel cause of Diamond–Blackfan anemia. We report two French patients who both harbored a heterozygous TP53 deletion (NM_000546.5: c.1077delA; p ...
Rafael Moisan   +6 more
wiley   +1 more source

Airfoil Design Optimization of Blended Wing Body for Various Aerodynamic and Stealth Stations

open access: yesAerospace
The airfoil is the foundation of an aircraft, and its characteristics have a significant impact on those of the aircraft. Conventional airfoil design mainly focuses on improving aerodynamic performance, while flying wing airfoil designs should also ...
Wei Zhang   +5 more
doaj   +1 more source

Study on wind aerodynamic and flow characteristics of triangular-shaped tall buildings and CFD simulation in order to assess drag coefficient

open access: yesAin Shams Engineering Journal, 2019
Tall modern buildings are extremely sensitive to the wind. Thus, assessment of wind loads to design these buildings is essential. The purpose of this study is first to introduce a theoretical framework and simultaneously express basic aerodynamic studies.
Abdollah Baghaei Daemei   +3 more
doaj   +1 more source

Aerodynamic performances of rounded fastback vehicle [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2017
Experimental and numerical analyzes were performed to investigate the aerodynamic performances of a realistic vehicle with a different afterbody rounding. This afterbody rounding resulted in a reduction to drag and lift at a yaw angle of zero, while the crosswind performances were degraded.
Rossitto, Giacomo   +4 more
openaire   +3 more sources

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