Results 81 to 90 of about 43,025 (262)

Performance and wake characteristics of a tidal turbine under yaw

International Marine Energy Journal, 2018
In tidal streams and rivers, the flow of water can be at yaw to the turbine rotor plane causing performance degradation and a skewed downstream wake. The current study aims to quantify the performance variation and associated wake behavior caused by a ...
P. Modali, N. S. Kolekar, A. Banerjee
doaj   +1 more source

Unveiling Activation Process of C═N Cathode for High‐Performing Zinc‐Organic Batteries

Advanced Science, EarlyView.
A high‐performance organic cathode of DPPT has been designed for aqueous zinc‐ion batteries (ZIBs), showing ultralong cycle life of 45 000 cycles. Besides, flexible DPPT ZIBs with stable capacity are applied in wearable NH3 sensors. Notably, the activation mechanism of the transformation of DPPT‐eight proton into DPPT is proposed and proved which ...
Xiaodong Geng, Zhangyu Wang, Weiyao Bi, Qian Zhao, Hongting Ma, Kai Yang, Ying Liu, Zhiqian Li, Qinghua Deng, Dan Zhao, Yuqian Jiang, Nan Zhu   +11 more
wiley   +1 more source

Atmospheric Turbulence Effects on Wind Turbine Wakes over Two-Dimensional Hill: A Wind Tunnel Study

Energies
The wake behavior of wind turbines in complex terrain is influenced by the combined effects of atmospheric turbulence and terrain features, which brings challenges to wind farm power production and safety.
Bowen Yan, Shuangchen Tang, Meng Yu, Guowei Qian, Yao Chen   +4 more
doaj   +1 more source

Wake Recovery Enhancement with Helix Active Wake Control: Vortex Structures in a Porous Disk Wake Observed in PIV Experiments

Journal of Physics: Conference Series
Abstract Power losses at waked turbines due to the energy extraction of upstream turbines from the flow pose a major risk to the economic feasibility of wind farms. Helix active wake control has proven its potential to mitigate these wake-induced power losses by accelerating the recovery of the individual turbine wakes.
Jonas Gutknecht, Daniel Van Den Berg, Daan Van Der Hoek, Brian De Vos, Bjorn Harder, Axelle Viré, Jan-Willem Van Wingerden   +6 more
openaire   +1 more source

A Hydrogen Sulfide–Releasing Dynamic Hydrogel Modulates Coordinated Neurovascular, Immune, and Angiogenic Responses for Scar‐Suppressed Diabetic Wound Repair

Advanced Science, EarlyView.
ROS‐Responsive H2S Hydrogel (HAPPF) Coordinated Regeneration for High‐Quality Diabetic Wound Repair.A self‐regulating dynamic hydrogel is developed to deliver a fluorogenic H2S donor in response to excessive ROS. Released H2S acts as a master regulator to resolve chronic inflammation (M2 polarization), restore VEGF‐driven angiogenesis, and rebalance ...
Xuyang Ning, Ziqiang Zhou, Bangming Li, Hong Lu, Haoyang Wen, Zhoulong Huang, Gang Li, Ping Hu   +7 more
wiley   +1 more source

Aerodynamic modeling and wake characterization of a 15-MW offshore wind turbine: Insights from blade-resolved URANS simulations

Applied Ocean Research
As offshore wind turbines continue to scale up beyond 15 MW, their aerodynamic complexity and wake interactions present significant modeling and performance prediction challenges.
Cong Yi, Shenglei Fu, Shangru Jia, Shuyu Yan, Haoran Yang, Hongbo Zhu   +5 more
doaj   +1 more source

Longitudinal Single‐Axon‐Resolution Imaging of Peripheral Nerve Injury Response in Mice Using an Optical Window Implant

Advanced Science, EarlyView.
A minimally invasive optical window enables stable, long‐term imaging of peripheral nerves in vivo at single‐axon resolution. Dynamic processes of degeneration, regeneration, and cellular remodeling are visualized across multiple time scales within the same nerve region, providing a unique platform to study a variety of anatomical and molecular events ...
Igor D. Luzhansky, Emma Anisman, Ron Perez, Sophia Zhang, Morgan Hoffman, Daniel Hunter, Abigail Cherian, Jevon Bonner, Emilia Feria, Ahmed Ahmed, Muneeb Malik, Junwei Du, Leland C. Sudlow, David M. Brogan, Matthew D. Wood, Mikhail Y. Berezin   +15 more
wiley   +1 more source

Semi-Empirical Model Based on the Influence of Turbulence Intensity on the Wake of Vertical Axis Turbines

Energies
In the context of energy shortages and the development of new energy sources, tidal current energy has emerged as a promising alternative. It is typically harnessed by deploying arrays of multiple water turbines offshore.
Ziyao Wang, Erhu Hou, He Wu
doaj   +1 more source

Ferroelectric Behavior of Micro‐ to Submicron‐Scale HZO Capacitors: Impact of the Perimeter‐to‐Area Ratio

Advanced Electronic Materials, EarlyView.
Using C‐AFM, W/HZO/p‐Ge capacitors with areas down to 0.26 µm2 are investigated. Frequency‐dependent voltage ramps reveal switching currents that confirm complete polarization reversal across the entire electrode area, while PUND enables reconstruction of P–V loops.
Lucian Trupina, Stefan Neatu, Lucian Pintilie, Lucia Nicoleta Leonat, Stavros Kitsios, Stefania Skorda, Alexandros El Sachat, Polychronis Tsipas, Alexander Flasby, Laura Bégon‐Lours, Athanasios Dimoulas   +10 more
wiley   +1 more source

Understanding Egg Price Volatility and Policy Implications in the U.S. With Machine Learning

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Eggs are an inexpensive and sustainable source of proteins, but volatility in the U.S. egg prices has intensified in recent years, raising concerns over food affordability and market stability. This study examines the drivers of U.S. egg price dynamics over 2004–2025 using a two‐stage framework that combines LASSO‐based variable selection with
Xuemei Zhao, Simon Meister, Lucie Maruejols, Xiaohua Yu   +3 more
wiley   +1 more source