Results 1 to 10 of about 735,591 (268)

A novel ultra-high-speed air-based Taylor–Couette apparatus for exploring narrow-gap flows in high-speed rotating machinery

Flow
We present the design, construction and initial experimental validation of the Northwestern Polytechnical University Taylor–Couette (NPU-TC) apparatus, specifically developed to explore turbulent Taylor–Couette flows under conditions relevant to ultra ...
Xi-Ran Liu, Xue-Jie Wang, Jia-Qi Ma, Xin Chen, Heng-Dong Xi   +4 more
doaj   +1 more source

Selecting Focal Songbird Species for Biodiversity Conservation Assessment: Response to Forest Cover Amount and Configuration

Avian Conservation and Ecology, 2007
Conservation of biodiversity is now a firmly entrenched objective of sustainable forest management, and emulating natural disturbance has been widely adopted as a conservation strategy. Yet the foundation for this approach is still very much a hypothesis
Robert S. Rempel
doaj   +1 more source

A novel trajectories optimizing method for dynamic soaring based on deep reinforcement learning

Defence Technology
Dynamic soaring, inspired by the wind-riding flight of birds such as albatrosses, is a biomimetic technique which leverages wind fields to enhance the endurance of unmanned aerial vehicles (UAVs).
Wanyong Zou, Ni Li, Fengcheng An, Kaibo Wang, Changyin Dong   +4 more
doaj   +1 more source

Configuration Analysis of Influencing Factors of Technical Efficiency Based on DEA and fsQCA: Evidence from China’s Medical and Health Institutions

Risk Management and Healthcare Policy, 2021
Zhiguang Li,1 Wanying Zhang,1 Aijie Kong,1 Zhiyuan Ding,1 Hua Wei,1 Yige Guo2 1School of Economics and Management, Anhui University of Chinese Medicine, Hefei, Anhui, People’s Republic of China; 2King’s Business School, King’s College ...
Li Z, Zhang W, Kong A, Ding Z, Wei H, Guo Y   +5 more
doaj  

Measurement Model and Precision Analysis of Accelerometers for Maglev Vibration Isolation Platforms

Sensors, 2015
High precision measurement of acceleration levels is required to allow active control for vibration isolation platforms. It is necessary to propose an accelerometer configuration measurement model that yields such a high measuring precision.
Qianqian Wu, Honghao Yue, Rongqiang Liu, Xiaoyou Zhang, Liang Ding, Tian Liang, Zongquan Deng   +6 more
doaj   +1 more source

Simulation-Based Virtual Cycle for Multi-Level Airport Analysis

Aerospace, 2018
The aeronautical industry is expanding after a period of economic turmoil. For this reason, a growing number of airports are facing capacity problems that can sometimes only be resolved by expanding infrastructure, with the inherent risks that such ...
Miguel Mujica Mota, Alejandro Di Bernardi, Paolo Scala, Gabriel Ramirez-Diaz   +3 more
doaj   +1 more source

A study on the influencing factors of exercise adherence in patients with chronic heart failure: from a configuration perspective

Frontiers in Psychology
ObjectiveThe study aims to investigate the configuration path of influencing factors of exercise adherence in chronic heart failure (CHF) patients based on the Capability, Opportunity, Motivation-Behavior (COM) model.BackgroundThe effectiveness of ...
Jing Lu, Jie Wang, Zhanhong You, Qin Wang, Guozhen Sun   +4 more
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Theoretical Study of the Kinetics Mechanism Underlying GaN Epitaxy Growth on 4H‐SiC Substrate

Advanced Materials Interfaces
Although GaN has successfully epitaxy growth on 4H‐SiC substrate, its kinetics mechanism, and how to control the morphology and polarity of epitaxial GaN have not been revealed yet.
Haidong Yuan, Liwei Wang, Jiangming Guo, Ruimei Yuan, Zhenhua Lin, Jincheng Zhang, Lixin Guo, Yue Hao, Jingjing Chang   +8 more
doaj   +1 more source

A General Tensorial Formulation of Acoustoelasticity and Its Representation in Cylindrical Coordinates. [PDF]

Sensors (Basel)
Ma Y, Xu C, Yang S, Chen C.
europepmc   +1 more source

Surface Glass Fiber Hybridization for Enhanced Low-Velocity Impact Resistance in CFRP T-Stiffened Panels. [PDF]

Polymers (Basel)
Yuan Y, Gao Y, Song D, Xi W, Huang J, Tang J.   +5 more
europepmc   +1 more source