Results 21 to 30 of about 144,008 (301)

Study on Lubrication-Photothermal Synergistic Deicing of CNT Coating on Wind Turbine Blades

International Journal of Photoenergy, 2022
Aiming at the problem of wind turbine blades' icing, a carbon nanotube composite photothermal coating with both active deicing and passive anti-icing properties was prepared by the spin-coating method.
Jianjun He, Huanyu Tian, Kaijun Yang, Jun Jie, Biao Chen, Zhonghu Shu, Jiangyong Bao, Min Pu   +7 more
doaj   +1 more source

Sensor Screening Methodology for Virtually Sensing Transmission Input Loads of a Wind Turbine Using Machine Learning Techniques and Drivetrain Simulations

Sensors, 2022
The ongoing trend of building larger wind turbines (WT) to reach greater economies of scale is contributing to the reduction in cost of wind energy, as well as the increase in WT drivetrain input loads into uncharted territories.
Baher Azzam, Ralf Schelenz, Georg Jacobs
doaj   +1 more source

Discussions on the Main Electrical Wiring Scheme for a 400 MW Offshore Substation Station

南方能源建设, 2019
[Introduction] Offshore wind farms are characterized by long distance from shore, high costs of repair due to vessels involved and weather, long maintenance cycles and the fact that daily operations and maintenance is highly dependent on weather and sea ...
HE Qingdong, ZHU Ruijun, MEI Chun
doaj   +1 more source

Impact of Multi-Physics HiL Test Benches on Wind Turbine Certification

Energies, 2022
Recently developed nacelle test benches for wind turbines, equipped with multi-physics Hardware-in-the-Loop (HiL) systems, enable advanced testing and even certification of next-generation wind turbines according to IEC61400-21.
Lennard Kaven, Anica Frehn, Maximilian Basler, Uwe Jassmann, Heiko Röttgers, Thomas Konrad, Dirk Abel, Antonello Monti   +7 more
doaj   +1 more source

Experimental Research on Scour Protection Range and Protection Effect of Large Diameter Monopile Foundation

南方能源建设, 2023
[Introduction] Under the wave-current combinations during the service period of offshore wind turbine, local scour inevitably occurs around pile foundation, which threatens the overall stability and safety of offshore wind turbine. [Method] In this paper,
Dezong ZHOU, Mingjun BI, Haidong ZHANG, Wei ZHANG, Guizhi ZHANG   +4 more
doaj   +1 more source

A frequency control strategy of distributed photovoltaic cluster based on EMPC

Zhejiang dianli, 2023
To enhance the integration of solar power generation into the grid and harness the frequency regulation capabilities of distributed solar photovoltaics， a distributed photovoltaic cluster frequency control strategy based on EMPC （extended model ...
WEI Wanjun, LIU Yi, PEI Kai, FANG Dezhi
doaj   +1 more source

Analysis of Wind-Turbine Main Bearing Loads Due to Constant Yaw Misalignments over a 20 Years Timespan

Energies, 2019
The compact design of modern wind farms means that turbines are located in the wake over a certain amount of time. This leads to reduced power and increased loads on the turbine in the wake. Currently, research has been dedicated to reduce or avoid these
Martin Cardaun, Björn Roscher, Ralf Schelenz, Georg Jacobs   +3 more
doaj   +1 more source

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait, R. Al‐Saadi, A. Lopez‐Cortes, K. Dzhuma, M. Oostveen, J. Brok, S. Irtan, M. Weeks, J. Bate, S. Baker, R. Williams, M. Powis, D. Saunders, O. Olsen, T. Watson, S. Shelmerdine, S. Vaidya, L. Howell, C. Duncan, G. M. Vujanic, C. Stiller, G. P. Balchin, T. Chowdhury, K. Pritchard‐Jones   +23 more
wiley   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel, Patricia Pastura, Joshua P. Scallan, Timothy D. Le Cras   +3 more
wiley   +1 more source

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash, Anis Rabbani Nourani, A. K. M. Fazlur Rahman, Dima Ezmigna, Tarig Ali‐Dinar   +4 more
wiley   +1 more source