Results 101 to 110 of about 52,798 (257)

The scale matters: A review on stimuli‐responsive microrobots categorized by scale for biomedical applications

Responsive Materials, EarlyView.
We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin, Yujing Li, Guanghao Wu, Yubing Guo   +3 more
wiley   +1 more source

Study on the aeroelastic performance of 15 MW wind turbine under yaw condition

Frontiers in Energy Research
Introduction: The trend toward larger wind turbine has made the aeroelastic issues of the wind turbine blades more prominent. To investigate the effect of flexible deflection of hundred-meter-scale blades on wind turbine performance.Methods: The present ...
Lu Ma, Yijia Li, Le Zhou, Dinghua Yang, Xin Shen, Xin Shen, Zhaohui Du, Zhaohui Du   +7 more
doaj   +1 more source

Efficient Harvesting of Irregular and Low‐Frequency Mechanical Energy via Hybridized Electromagnetic‐Triboelectric Systems

Small, EarlyView.
ABSTRACT The rapid expansion of the Internet of Things (IoT) and wearable electronics necessitates sustainable power sources to replace the limited electrochemical battery. While mechanical energy harvesting offers a promising solution, traditional harvesters face challenges of irregular and low−frequency environmental sources. This review presents the
Yongbin Han, Ju‐Hyuck Lee, Hong‐Joon Yoon   +2 more
wiley   +1 more source

Investigating Breathing Dynamics of a 110 kV Oil‐Immersed Transformer Using Thermal‐Fluid‐Structure Interaction Modelling

High Voltage, EarlyView.
ABSTRACT The breathing system of an oil‐immersed transformer is of vital importance for maintaining equilibrium between internal and external pressures, with any malfunction potentially disrupting the transformer's stable operation. This study develops a thermal–fluid–structure interaction (TFSI) model to simulate the breathing phenomenon in a 110 kV ...
Lujia Wang, Guangyi Chen, Dong Shang, Xiang Zhang, Haitao Yang, Jianwen Zhang   +5 more
wiley   +1 more source

Physical properties data of extruded composites from recycled wind turbine blade material

Data in Brief, 2019
Wind turbine blades (WTB) mechanically recycled and used as a feedstock for thermoplastic composites. Physical properties (water sorption (WA), Thickness swelling (TS)) dataset of composites made from recycled wind turbine blades presented.
Seyed Hossein Mamanpush, Azadeh Tavousi Tabatabaei, Hui Li, Karl Englund   +3 more
doaj   +1 more source

AERODYNAMIC ANALYSIS OF WIND TURBINE ROTOR BLADES

TASK Quarterly, 2015
One of the main achievements of the PLGrid Plus project is the implementation of new tools and services designed for the numerical prediction of the aerodynamic performance of wind energy turbines. An innovative and unique integration tool (Aero-T) is aiming at automating all stages (pre-, solution and post-processing) of the numerical simulation of ...
Javier Martinez, Piotr Doerffer, Oskar Szulc, Fernando Tejero   +3 more
openaire   +2 more sources

Artificial Time Histories of Wind ActionsFor Structural Analysis of Wind Turbines [PDF]

, 2013
A computational method for generating artificial time histories of wind loads on wind turbine towers is presented, based on wind turbine aerodynamics and a wind field model. First, the forces acting on the blades parallel and perpendicular to the rotor’
Gantes, Charis J., Koulatsou, Konstantina, Petrini, Francesco, Vernardos, Stelios   +3 more
core  

Study of Positive Corona Discharge of Needle Plate Electrodes in Airflow

High Voltage, EarlyView.
ABSTRACT For high‐speed moving objects such as aircraft and wind turbine blades, discharge occurs under strong airflow. Research on lightning attachment characteristics has been extensive, whereas the role of corona discharge in pre‐breakdown streamer development has received less attention.
Lei Lan, Zhengxian Du, Qiang Wu, Yeqiang Deng, Yu Wang, Zeliang Wu, Xiankang Wang   +6 more
wiley   +1 more source

Small wind generation using complex airfoil turbine

Cogent Engineering, 2019
Near-ground wind is not stable and turbulent due to the ground effect and heat ventilation. Small wind generation system design for public utilities needs to catch the small wind to rotate the turbine blades.
Chin E. Lin, Bao Chau Phan, Jia-Shian Chuang   +2 more
doaj   +1 more source

Effect of rotational harmonics on sound power from HAWT blades [PDF]

INCAS Bulletin
With rising greenhouse gas emissions and increasing energy demands across the globe, sustainable energy production has become essential today. Even though wind turbines help mitigate the harmful emissions, the HAWT blades are one of the key sources of ...
Vasishta Bhargava NUKALA, Chinmaya Prasad PADHY   +1 more
doaj   +1 more source