Results 31 to 40 of about 5,017,518 (306)

A Pitch Angle Controller Based on Novel Fuzzy-PI Control for Wind Turbine Load Reduction

Energies, 2020
A novel fuzzy rule is proposed to adopt a positive pitch strategy when the error between the measured and rated generator speed becomes large and continues to increase, and to adopt a negative pitch strategy when the error is small. The improved approach
Bofeng Xu, Yue Yuan, Haoming Liu, Peng Jiang, Ziqi Gao, Xiang Shen, Xin Cai   +6 more
doaj   +1 more source

Characteristic dynamic traffic load effects in bridges [PDF]

, 2009
When formulating an approach to assess bridge traffic loading with allowance for Vehicle-Bridge Interaction (VBI), a trade-off is necessary between the limited accuracy and computational demands of numerical models and the limited time periods for which ...
O\u27Brien, Eugene J., Dowling, Jason, O'Brien, Eugene J., Znidaric, Ales, Aleš Žnidarič, Arturo González, Paraic Rattigan, Rattigan, Paraic, González, Arturo, Eugene J. OBrien, Jason Dowling   +10 more
core   +1 more source

LIDAR-Assisted Wind Turbine Structural Load Reduction by Linear Single Model Predictive Control

IEEE Access, 2020
LIght Detection And Ranging (LIDAR) sensors provide preview measurements of wind speed in front of the device. This preview may be used to improve important aspects of the operation of wind turbines, such as structural load, while limiting the control ...
Rafael Barcena, Tatiana Acosta, Ainhoa Etxebarria, Inigo Kortabarria   +3 more
doaj   +1 more source

Recent Advances in Real-Time Load-Pull Systems [PDF]

, 2008
In this paper, some of the latest advances in real-time load-pull technologies will be described. A recently introduced ultralow-loss directional coupler, which has been designed and realized by the authors, provides a number of advantages when used in ...
Ferrero, Andrea Pierenrico, Pisani, Umberto, Teppati, Valeria   +2 more
core   +1 more source

eMPC based load reduction controller for wind turbines

, 2022
This is the source code for the eMPC controller for tower load ...
Riccardo Ferrari, ZHIXIN FENG
core   +1 more source

A novel hybrid technique for lateral pressure reduction on rigid retaining walls integrating EPS cushion and lightweight foam bead backfill

Frontiers in Built Environment
Despite extensive studies on EPS cushions or lightweight backfill separately for reducing lateral earth pressure on retaining walls, limited research has addressed the combined application of both techniques in a single wall system.
Kaixiang Huang, Kaixiang Huang, Kaixiang Huang, Jianyu Huang, Jianyu Huang, Jianyu Huang, Wenqiang Zheng, Wenqiang Zheng, Wenqiang Zheng, Zhu Liang, Zhu Liang, Zhu Liang, Guochao Liu, Guochao Liu, Guochao Liu, Hanqing Sun, Hanqing Sun, Hanqing Sun, Duke Cai, Duke Cai, Duke Cai   +20 more
doaj   +1 more source

Greening Geographical Load Balancing [PDF]

, 2011
Energy expenditure has become a significant fraction of data center operating costs. Recently, "geographical load balancing" has been suggested to reduce energy cost by exploiting the electricity price differences across regions.
Liu, Zhenhua
core   +1 more source

Load reduction instruction policy

, 2021
Research has shown that explicit instruction is significantly associated with students’ achievement gains. This is because it presents learning material in a way that reduces the cognitive burden on students as they learn.
Andrew J. Martin, Paul Evans
openaire   +2 more sources

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source

Probabilistic load flow in systems with high wind power penetration [PDF]

, 2008
This paper proposes a method for solving a probabilistic load flows that takes into account the uncertainties of wind generation, but also of load and conventional systems.
Usaola García, Julio
core   +1 more source