Results 61 to 70 of about 66,305 (312)

Vessel charter rate estimation for offshore wind O&M activities [PDF]

, 2013
Estimating the cost of vessels is an important factor for the operation & maintenance (O&M) costs of offshore wind farms. Accurate cost estimation is required during operation of the wind farm.
O Turan, Lazakis, Iraklis, Dalgic, Yalcin, Turan, Osman, Y Dalgic, I Lazakis   +5 more
core   +1 more source

Improved Frequency Regulation Control Strategy of Wind Power Considering Random Fluctuation Characteristics of Source-Load

发电技术
ObjectivesLarge-scale wind power integration leads to a decrease in grid inertia, and the fluctuating power of wind turbines combined with random fluctuation of load under turbulent wind speed aggravates the frequency fluctuation in the power grid ...
ZHANG Xiaolian, HU Qi, HAO Sipeng, HUANG Peng   +3 more
doaj   +1 more source

Numerical wind load estimation of offshore floating structures through sustainable maritime atmospheric boundary layer

International Journal of Naval Architecture and Ocean Engineering, 2020
Wind load is one of the major design loads for the hull and mooring of offshore floating structures, especially due to much larger windage area above water than under water.
Seong Mo Yeon, Joo-Sung Kim, Hyun Joe Kim   +2 more
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Integrated Optimal Design of a Passive Wind Turbine System: An Experimental Validation [PDF]

, 2010
This work presents design and experimentation of a full passive wind turbine system without active electronic part(power and control). The efficiency of such device can be obtained only if the system design parameters are mutually adapted through an ...
Sareni, Bruno, Espanet, Christophe, Roboam, Xavier, Tran, Duc-Hoan, Tran, Duc Hoan   +4 more
core   +1 more source

Wind tunnel test study on the wind load variation law of a point focus solar furnace

Frontiers in Energy Research, 2023
This work studied the wind load acting on a point focus solar furnace composed of a 110 m2 heliostat and a 77 m2 concentrator through wind tunnel testing.
Mingfei He, Mingfei He, Mingfei He, Mingfei He, Penglin Huang, Penglin Huang, Penglin Huang, Penglin Huang, Bo Gong, Bo Gong, Bo Gong, Bo Gong, Chuncheng Zang, Chuncheng Zang, Chuncheng Zang, Chuncheng Zang, Zhifeng Wang, Zhifeng Wang, Zhifeng Wang, Zhifeng Wang   +19 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

A Comparative Study of Time-Frequency Representations for Fault Detection in Wind Turbine [PDF]

, 2011
To reduce the cost of wind energy, minimization and prediction of maintenance operations in wind turbine is of key importance. In variable speed turbine generator, advanced signal processing tools are required to detect and diagnose the generator faults ...
CHARPENTIER, Jean-Frederic, G. Barakat, EL BOUCHIKHI, EL HOUSSIN, BENBOUZID, Mohamed, BARAKAT, Georges, V. Choqueuse, Choqueuse, Vincent, V., J.F. Charpentier, El.H. Bouchikhi, M.E.H. Benbouzid, CHOQUEUSE, Vincent   +10 more
core   +1 more source

Identification of Wind Load Exerted on the Jacket Wind Turbines from Optimally Placed Strain Gauges Using C-Optimal Design and Mathematical Model Reduction

Journal of Marine Science and Engineering
Wind turbine towers experience complex dynamic loads during actual operation, and these loads are difficult to accurately predict in advance, which may lead to inaccurate structural fatigue and strength assessment during the structural design phase ...
Fan Zhu, Meng Zhang, Fuxuan Ma, Zhihua Li, Xianqiang Qu   +4 more
doaj   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

FEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara, Kinga Skoczek, Elzbieta Pyza, Milena Damulewicz   +3 more
wiley   +1 more source