Results 81 to 90 of about 541,486 (194)

A Comprehensive Characteristic Modeling Method for Francis Turbine Based on Image Digitization and RBF Neural Network

Energies
Establishing a mathematical model of a Francis turbine is the foundation for the simulation of hydropower station operation and is of great significance for the analysis of the hydropower station’s transient process.
Youhan Deng, Youping Li, Xiaojun Hua, Rui Lyu, Yushu Li, Lei Wang, Weiwei Yao, Yifeng Gu, Fangqing Zhang, Jiang Guo   +9 more
doaj   +1 more source

The solar wind as seen by SOHO/SWAN since 1996: comparison with SOHO/LASCO C2 coronal densities

, 2009
We update the SOHO/SWAN H Lyman-alpha brightness analysis to cover the 1996-2008 time interval. A forward model applied to the intensity maps provides the latitude and time dependence of the interstellar Hydrogen ionisation rate over more than a full ...
Bertaux, Jean-Loup, Ferron, Stephane, Lallement, Rosine, Lamy, Philippe, Quemerais, Eric, Schmidt, Walter   +5 more
core   +1 more source

Modeling of Marine Assembly Logistics for an Offshore Floating Photovoltaic Plant Subject to Weather Dependencies

Journal of Marine Science and Engineering
Floating solar technology has gained significant attention as part of the global expansion of renewable energy due to its potential for installation in underutilized water bodies.
Lu-Jan Huang, Simone Mancini, Minne de Jong   +2 more
doaj   +1 more source

Influence of rotor blade flexibility on the near-wake behavior of the NREL 5 MW wind turbine [PDF]

Wind Energy Science
High-fidelity computational fluid dynamics (CFD) simulations of the National Renewable Energy Laboratory (NREL) 5 MW wind turbine rotor are performed, comparing the aerodynamic behavior of flexible and rigid blades with respect to local blade quantities ...
L. Höning, L. Höning, L. J. Lukassen, L. J. Lukassen, B. Stoevesandt, I. Herráez   +5 more
doaj   +1 more source

Uncertainty estimation of hydrological modelling using gridded precipitation as model inputs in the Gandaki River Basin

Journal of Hydrology: Regional Studies
Study Region: Four subbasins in the Gandaki River Basin in the southern Himalayan region. Study Focus: In the southern Himalayan region, gridded precipitation datasets are often used to complement sparse gauge network observations in hydrological ...
Qiang Zeng, Qiang Zhao, Yang-Tao Luo, Shun-Gang Ma, You Kang, Yu-Qiong Li, Hua Chen, Chong-Yu Xu   +7 more
doaj   +1 more source

Suprathermal particle addition to solar wind pressure: possible influence on magnetospheric transmissivity of low energy cosmic rays?

, 2013
Energetic (suprathermal) solar particles, accelerated in the interplanetary medium, contribute to the solar wind pressure, in particular during high solar activity periods.
Bobik, P., Boschini, M. J., Consolandi, C., Della Torre, S., Gervasi, M., Grandi, D., Kudela, K., La Vacca, G., Mallamaci, M., Pensotti, S., Rancoita, P. G., Rozza, D., Tacconi, M.   +12 more
core  

The interaction of the solar wind with the interstellar medium [PDF]

The expected characteristics of the solar wind, extrapolated from the vicinity of the earth are described. Several models are examined for the interaction of the solar wind with the interstellar plasma and magnetic field.
Axford, W. I.
core   +1 more source

Assessing solar and wind complementarity in Texas

Renewables: Wind, Water, and Solar, 2018
As wind and solar power installations proliferate, power grids will face new challenges in ensuring consistent coverage from variable renewable resources.
Joanna H. Slusarewicz, Daniel S. Cohan
doaj   +1 more source

11- and 22-year variations of the cosmic ray density and of the solar wind speed [PDF]

Cosmic ray density variations for 17-21 solar activity cycles and the solar wind speed for 20-21 events are investigated. The 22-year solar wind speed recurrence was found in even and odd cycles. The 22-year variations of cosmic ray density were found to
Chirkov, N. P.
core   +1 more source

High-Frequency Oscillation Suppression Strategy for VSG MMC-HVDC Integrated Offshore Wind Farms Considering Frequency Coupling

Sensors
In MMC-HVDC-integrated offshore wind farms, the Wind-Farm-side MMC (WFMMC) is increasingly adopting Virtual Synchronous Generator (VSG) control to provide active support.
Haichang Sun, Weiwei Yao, Hailang Shi, Liang Qin, Youhan Deng, Kaipei Liu   +5 more
doaj   +1 more source