Results 31 to 40 of about 39,978 (316)

Data-driven aerodynamic shape optimization of rotor airfoils based on deep learning

Advances in Aerodynamics
As the fundamental component of rotor blades, the airfoil dominates the aerodynamic performance of helicopter rotors. The aerodynamic shape optimization of rotor airfoils is thus an effective means of improving their aerodynamic performance.
Jiaqi Liu, Rongqian Chen, Jinhua Lou, Yancheng You   +3 more
doaj   +1 more source

A Coupled Effect Model of Two-Position Local Geometric Deviations on Subsonic Blade Aerodynamic Performance

Applied Sciences, 2020
The coupled aerodynamic performance influence of multiple deviations in the blade profile is a complex phenomena. In this paper, a high-pressure compressor rotor blade mid-span profile is studied with the design of experiments (DOE), numerical simulation
Xianjun Yu, Mingzhi Li, Guangfeng An, Baojie Liu   +3 more
doaj   +1 more source

Influences of main design parameters on the aerodynamic performance of a micro-radial inflow turbine

AIP Advances, 2022
The micro-radial inflow turbine (MRIT) is not only an important component of a micro-gas turbine but also the core part of a vehicle exhaust gas turbocharger and a small-scale organic Rankine circulatory system.
Chao Li, Zhiping Guo, Hao Guo, Xin Bao, Le Zhou   +4 more
doaj   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

Assessing the impact of aerodynamic modelling on manoeuvring aircraft

, 2014
This paper investigates the impact of aerodynamic models on the dynamic response of a free-flying aircraft wing. Several options for the aerodynamics are evaluated, from two-dimensional thin aerofoil aerodynamics and unsteady vortex-lattice method up to ...
Hesse, H., Palacios, Rafael, Hesse, H, Da Ronch, Andrea, Palacios, R., Da Ronch, A., Palacios, R, McCracken, AJ, McCracken, Andrew J., Tantaroudas, N.D., Tantaroudas, ND, Badcock, Kenneth J., Da Ronch, A, Badcock, KJ, Hesse, Henrik, Badcock, K.J., McCracken, A.J.   +16 more
core   +1 more source

Simulation of wake vortex effects for UAVs in close formation flight [PDF]

, 2009
This paper addresses the development of multiple UAV deployment simulation models that include representative aerodynamic cross-coupling effects. Applications may include simulations of autonomous aerial refuelling and formation flying scenarios.
Whidborne, James F., D. Saban, Cooke, Alastair K., A. K. Cooke, J. F. Whidborne, Saban, Deborah   +5 more
core   +1 more source

Aerodynamic Layout Evaluation of Hydrogen-powered Fixed-wing Unmanned Aerial Vehicle(UAV) by Numerical Simulation

Taiyuan Ligong Daxue xuebao, 2021
For the aerodynamic layout selection of a long-endurance hydrogen energy hybrid unmanned aerial vehicle(UAV), this paper carried out a numerical simulation of aerodynamic characteristics for a certain design plan, in order to provide data support for the
Haiping TIAN, Jian SU, Zeqi XIAO, Han WANG, Zhiqiang LI, Jinhui LEI   +5 more
doaj   +1 more source

Aerodynamic Performance of Two eVTOL Concepts [PDF]

, 2019
Today’s demand for urban mobility is constantly growing due to the demographic changes observed in metropolitan areas. New concepts such as electrical vertical take-off and landing (eVTOL) vehicles are currently emerging. Therefore an aerodynamic investigation of two eVTOL vehicle concepts is carried out to identify the advantages and disadvantages of ...
openaire   +3 more sources

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi, Daisuke Katagiri, Takeyuki Watadani, Shunichi Matsuda, Hiroshi Kaneko, Noritoshi Arai   +5 more
wiley   +1 more source

Non-linear unsteady aerodynamic model for insect-like flapping wings in the hover. Part 1: Methodology and analysis [PDF]

, 2006
The essence of this two-part paper is the analytical, aerodynamic modelling of insect-like flapping wings in the hover for microair vehicle applications.
Knowles, Kevin, Zbikowski, Rafal, Ansari, S. A.   +2 more
core   +1 more source