Results 141 to 150 of about 175,294 (335)

Assessment of a rotor blade extension retrofit as a supplement to the lifetime extension of wind turbines

, 2020
Matthias Saathoff
openalex   +1 more source

A Shear Thickening Colloidal Suspension Functioning via Progressive Impact Jamming with Persistent Lubrication Layer

Advanced Science, EarlyView.
An ionic liquid‐based shear‐thickening fluid (ILSTF) exhibits lubricated dynamics from strong shear thickening to impact‐triggered jamming. A persistent nanometric solvation layer around silica governs both the shear thickening saturation in rheology and jamming front propagation under dynamic impact compression.
Yiran Wu, Yifeng Yu, Yiqiu Zhao, Qin Xu, T. X. Yu, Xin Zhang, Jinglei Yang   +6 more
wiley   +1 more source

Thermodynamics of the Rigid Rotor at High Temperature [PDF]

, 1965
John E. Kilpatrick, Yoshiichi Fukuda, Sigurd Yves Larsen   +2 more
openalex   +1 more source

Computational fluid dynamics model of a quad-rotor helicopter for dynamic analysis [PDF]

, 2016
The control and performance of a quad-rotor helicopter UAV is greatly influenced by its aerodynamics, which in turn is affected by the interactions with features in its remote environment. This paper presents details of Computational Fluid Dynamics (CFD)
Bousbaine, Amar, Poyi, Gwangtim Timothy, Wu, Mian Hong   +2 more
core   +2 more sources

Feline‐Inspired Robot Enabled by Combustion‐Driven Actuators for Agile Motion and High‐Payload Obstacle Traversal

Advanced Science, EarlyView.
Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma, Yang Yang, Zhiguo He, Hongliang Ren, Pengcheng Jiao   +4 more
wiley   +1 more source

Wireless Magnetoelectrochemical Induction of Rotational Motion

Advanced Science
Electromagnetically induced rotation is a key process of many technological systems that are used in daily life, especially for energy conversion.
Kostiantyn Tieriekhov, Neso Sojic, Laurent Bouffier, Gerardo Salinas, Alexander Kuhn   +4 more
doaj   +1 more source

Nonlinear dynamics of rotor system supported by bearing with waviness [PDF]

, 2020
Guofang Nan, Yang Zhang, Yujie Zhu, Wei Guo   +3 more
openalex   +1 more source

Structural Basis of the Membrane Association by the Conserved RocS Membrane‐Targeting Sequence in Streptococcus

Advanced Science, EarlyView.
Chromosome segregation in Streptococcus pneumoniae depends on RocS, a bitopic protein whose membrane‐anchoring mechanisms were unclear. Using NMR and AFM, this study reveals that the widely conserved RocS anchor binds to membranes via a conserved kink‐helix motif which inserts into lipid nanodomains.
Ana Álvarez‐Mena, Estelle Morvan, Clara Lambert, Anagha Kallisseri Parambil, Martin Lefeuvre, Zeren Xu, Nadia El Mammeri, Florian Malard, Erick J. Dufourc, Cécile Feuillie, Christophe Grangeasse, Birgit Habenstein   +11 more
wiley   +1 more source

Rapid Steam‐Assisted Temperature Swing Adsorption for Direct Air Capture Using a Rotary Adsorber

Advanced Science, EarlyView.
This study presents a direct air capture (DAC) device based on a steam‐regeneration rotary adsorber for high‐purity CO2. Testing of the prototype demonstrates its capability for continuous and stable carbon capture with the potential to achieve ton‐scale.
Junye Wu, Yunhao Chen, Kuihua Wang, Yingjie Huo, Yanlin Chen, Quanwen Pan, Tianshu Ge   +6 more
wiley   +1 more source

Quantitative reliability and airworthiness analysis of propulsion systems of multi-rotor UAVs for certification in civil airspace [PDF]

Siddesh Govind, Siddesh Govind
openalex   +1 more source