Results 31 to 40 of about 20,638,012 (277)

Aerodynamic performance of owl-like airfoil undergoing bio-inspired flapping kinematics

, 2021
Natural flyers have extraordinary flight skills and their prominent aerodynamic performance has attracted a lot of attention. However, the aerodynamic mechanism of birds' flapping wing kinematics still lacks in-depth understanding.
Xin-Yu Lang, Bifeng Song, Wen-Qing Yang, Wen-Ping Song   +3 more
semanticscholar   +1 more source

Research on the Aerodynamic Performance and Collaborative Optimization Design of the Full-Scale Compact Inlet Chamber of a Nuclear-Powered Steam Turbine

Machines
In nuclear-powered steam turbines, the aerodynamic performance of the inlet chamber tends to be contradictory to the compact design, which makes it difficult to achieve optimal efficiency and power in a nuclear-powered steam turbine.
Lei Zhang, Wei Jiang, Luotao Xie, Guobing Chen   +3 more
doaj   +1 more source

Optimizing the Aerodynamic Performance of a Duct–Rotor System for Drones: A Comprehensive Study on the Coupled Parameters

Drones
The integrated ducted structure significantly enhances the aerodynamic performance of the duct–rotor system, reducing noise and enhancing rotor safety. However, in the duct–rotor system, the coupled parameters of the rotor and the duct are crucial to its
Wei Wei, Shiyi Wei, Zhifang Ke, Meng Guo, Yongjie Shu, Qingkai Meng, Leilei Jia, Maofeng Zhang, Shurui Han   +8 more
doaj   +1 more source

An intelligent prediction model and transfer learning framework for aerodynamic performance of 3D aircraft

Kongqi donglixue xuebao
The rapid advancement of artificial intelligence technology has brought opportunities for innovation in the computational modeling of aircraft aerodynamic performance.
Peng Zhang, Dan Xu, Guopeng Sun, Yueqing Wang, Yushuang Liu, Yi Chen, Jianqiang Chen   +6 more
doaj   +1 more source

Estimation of Airship Aerodynamic Forces and Torques Using Extended Kalman Filter

IEEE Access, 2020
An airship is a lighter than air, aerial vehicle whose model is based on dynamic, aerodynamic, aerostatic and propulsion forces and torques. Apart from other, aerodynamic forces and toques are difficult to measure.
Muhammad Wasim, Ahsan Ali
doaj   +1 more source

Exercise Capacity, Physical Activity, Fatigue, and Neurocognitive Function in Adult Survivors of Childhood Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess, Gustaf Glavå, Simon Skau, Hans‐Georg Kuhn, Maria Bäck, Marianne Jarfelt   +5 more
wiley   +1 more source

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

Experience With Performing Rheocarna Therapy via the Single‐Needle Method for Treatment of Chronic Limb‐Threatening Ischemia

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi, Rie Tanaka, Reona Kawahira, Shingo Nabeta, Kouhei Naoi, Kazuhito Kitajima, Akira Wada, Tomonari Takagi, Norihiko Ohura, Akira Miyamoto   +9 more
wiley   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida, Gisela Cristiane Miyamoto, Daniel da Costa Torres, Ian Setubal Reis Chaves, Jonas do Carmo Paschoalin, Braúlio Lima Nascimento, Luciana Dias Chiavegato   +6 more
wiley   +1 more source

Effect of cross wind on aerodynamic coefficients of ground vehicles. [PDF]

, 2009
The present work investigates the variation of aerodynamic coefficients with the change in the angle of flow. A mathematical equation has been developed for predicting the aerodynamic coefficients, when a vehicle is subjected to crosswind.
Malviya, Vihar, Gundala, Naresh, Mishra, Rakesh   +2 more
core   +4 more sources