Results 101 to 110 of about 301,538 (305)

Design, commissioning and performance of a device to vary the turbulence in a recirculating flume

, 2013
Ambient turbulent flow structures are one of the key drivers that will determine the rate of wake recovery downstream of tidal turbines. For second and third generation arrays or farms such a parameter is critical for the determination of inter-device ...
Galloway, P.W., Myers, L.E., Shah, K.D
core  

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

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

Advanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon, Kyungchul Noh, Minkyu Hwang, Yoon‐Jung Kim, Unjin Lee, Yeon Joo Ryu, Je‐Kyung Ryu, Sang Beom Jun, Se‐Young Choi, Woo‐Hyun Cho, Sung Joong Lee   +10 more
wiley   +1 more source

Ultra-fast escape maneuver of an octopus-inspired robot [PDF]

, 2014
We design and test an octopus-inspired flexible hull robot that demonstrates outstanding fast-starting performance. The robot is hyper-inflated with water, and then rapidly deflates to expel the fluid so as to power the escape maneuver.
Subramaniam, V., Triantafyllou, M. S., Weymouth, G. D.   +2 more
core   +1 more source

Endometrial Assembloid Model Reveals Endometrial Gland Development Regulation by Estradiol‐Driven WNT7B Suppression

Advanced Science, EarlyView.
This study developed a 3D endometrial assembloid model to study how uterine glands form and develop. They discovered key interactions between different cell types and identified WNT7B as a regulator controlled by estradiol‐mediated TGFβ1‐VDR interaction.
Xintong Li, Yanjie Guo, Jianlin Li, Yimeng Li, Leqian Lin, Hoi Kit Matthew Leung, Qingqing Zhang, Kai‐Fai Lee, Ka‐Wang Cheung, Ernest H. Y. Ng, William S. B. Yeung, Philip C. N. Chiu, Cheuk‐Lun Lee   +12 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

Epithelium‐Inspired, Ultrahigh‐Toughness, Ultralow‐Hysteresis, and Highly Compressible Polymer Hydrogels as Self‐Powered, Visual, and Underwater Strain Sensors

Advanced Science, EarlyView.
Inspired by epithelial tissue, epithelium‐like structure hydrogels are synthesized. The as‐prepared hydrogels exhibit ultrahigh toughness, ultralow hysteresis, and ultrahigh compressibility, which can be utilized as self‐powered and visual strain sensors.
Yutang Zhou, Honghao Shu, Yuhuan Yao, Bolin Lu, Wenbin Zhong   +4 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

Wind-farm wake recovery mechanisms in conventionally neutral boundary layers

Journal of Fluid Mechanics
Synthetic-aperture radar images and mesoscale models show that wind-farm wakes differ from single-turbine wakes. For instance, wind-farm wakes often narrow and do not disperse over long distances, contrasting the broader and more dissipating wakes of individual turbines.
Luca Lanzilao, Johan Meyers
openaire   +2 more sources

SY25-1 * THE HEALING PLACE OF WAKE COUNTY AND RECOVERY DYNAMICS: INNOVATIVE SOCIAL MODEL RECOVERY [PDF]

Alcohol and Alcoholism, 2014
This symposium will introduce an innovative recovery model currently used in the United States with individuals who are impacted by homelessness and substance use disorders. Symposiums attendees will learn about The Healing Place of Wake County, a social model recovery program.
openaire   +1 more source