Results 41 to 50 of about 1,560 (183)

Potential of Thermoset Polyolefins for FRP Concrete Reinforcing Bars

Polymer Composites, EarlyView.
Overview of XLPO and pDCPD resins for FRP reinforcing bars, highlighting resin chemistry, key performance characteristics, fiber sizing interactions, and principal degradation mechanisms in concrete environments. ABSTRACT Although thermoset polyolefins offer resistance to hydrolytic degradation and favorable processing characteristics, their potential ...
Osama Omar, Farzaneh Mahmoudi, Leonidas G. Bachas, Francisco De Caso, Brahim Benmokrane, Antonio Nanni   +5 more
wiley   +1 more source

Erosion Resistance Enhancement in Epoxy Composites by Recycled Rubber: Effect of Rubber Type

Polymer Engineering &Science, EarlyView.
Erosion resistance enhancement in epoxy composites by recycled rubber. ABSTRACT Epoxy‐based materials have low erosion resistance due to their brittle nature, and toughness modification stands out for enhancing it. At this stage, the use of waste rubber as a reinforcement component in the composite system is of interest due to its role in providing ...
Orkan Baran Korkusuz, Şehriban Öncel, Bağdagül Karaağaç, Tamer Sınmazçelik   +3 more
wiley   +1 more source

Controls of Hydraulic Wind Turbine [PDF]

MATEC Web of Conferences, 2016
In this paper a hydraulic wind turbine generator system was proposed based on analysis the current wind turbines technologies. The construction and principles were introduced. The mathematical model was verified using MATLAB and AMsim. A displacement closed loop of swash plate of motor and a speed closed loop of generator were setup, a PID control is ...
Zhang Yin, Kong Xiangdong, Hao Li, Ai Chao   +3 more
openaire   +2 more sources

River‐Scale Evaluation of a Floating LED Light Array for Behavioral Guidance of American Eel

River Research and Applications, EarlyView.
ABSTRACT Exploiting the sensory physiology of migratory fishes to guide them away from hazards like hydroelectric turbines is of interest to regulatory agencies and hydropower operators to achieve conservation and management goals. Here we describe a river‐scale experiment where out‐migrating adult American eel (Anguilla rostrata) were tracked ...
Chris K. Elvidge, M. E. Cole MacLeod, Daniel Hatin, Alexandre Guindon, René Dion, Scott Schlueter, Justin Ecret, Jana R. Lantry, Thomas C. Pratt, David Stanley, Jake K. L. La Rose, Paul T. Jacobson, Douglas Bradley, Steven J. Cooke   +13 more
wiley   +1 more source

Search and Passage Are Decoupled for Migrating Trout Kelts at Multi‐Exit Dam

River Research and Applications, EarlyView.
ABSTRACT Longitudinal and lateral river connectivity have been drastically reduced over time, with hydropower development as a major driver of fragmentation. While fishways are widely implemented to support upstream migration, downstream passage remains a major challenge.
Halvor Kjærås, Jon Museth, Finn Økland, Karl Øystein Gjelland, Henrik Baktoft, Torbjørn Forseth   +5 more
wiley   +1 more source

Use of Hydrogen Energy and Fuel Cells in Marine and Industrial Applications—Current Status

Hydrogen
The promising development of hydrogen and fuel cell technologies has garnered increased attention in recent years, assuming a significant role in industrial applications and the decarbonisation of the shipping industry.
Sorin-Marcel Echim, Sanda Budea
doaj   +1 more source

Application of Circular Economy Principles to Power Generation: Extending the Life of A Hydropower Plant by Pumped Hydro Energy Storage

Sustainable Development, EarlyView.
ABSTRACT The application of circular economy, which aims to maximize efficiency and reduce waste, to renewable energy sources necessitates, given the intermittent nature of the latter, robust energy storage solutions to ensure grid stability and avoid wasting energy.
Ó. Martín‐Llorente, E. Jiménez‐Macias, J. C. Sáenz‐Diez Muro, E. Martínez‐Cámara, J. Blanco‐Fernández   +4 more
wiley   +1 more source

Flow-Induced Instabilities in Pump-Turbines in China

Engineering, 2017
The stability of pump-turbines is of great importance to the operation of pumped storage power (PSP) stations. Both hydraulic instabilities and operational instabilities have been reported in PSP stations in China.
Zhigang Zuo, Shuhong Liu
doaj   +1 more source

Empirical Physics‐Based Normal Behavior Modeling of Drive Train Temperatures With High‐Resolution Wind Turbine Operating Data

Wind Energy, EarlyView.
ABSTRACT The installed wind energy capacity increases every year. However, operation and maintenance costs still make up a considerable portion of the levelized costs of electricity. This costs can be greatly reduced by the application of suitable early fault detection methods. The supervisory control and data acquisition system of wind turbines is one
Timo Lichtenstein, Victor von Maltzahn, Karoline Pelka   +2 more
wiley   +1 more source

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang, Zi Yu, Hui Peng, Zixuan Wang, Xiaokang Dai, Weirong Liu, Jing Wang   +6 more
wiley   +1 more source