Results 81 to 90 of about 302,569 (311)

Impact of CO2 prices on the design of a highly decarbonised coupled electricity and heating system in Europe

open access: yes, 2018
Ambitious targets for renewable energy and CO2 taxation both represent political instruments for decarbonisation of the energy system. We model a high number of coupled electricity and heating systems, where the primary sources of CO2 neutral energy are ...
Andresen, G. B.   +4 more
core   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

open access: yesFEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento   +6 more
wiley   +1 more source

Performance Analysis of Three-Phase Interleaved Buck-Boost Converter in Wind Energy Maximum Power Point Tracking

open access: yesAl-Iraqia Journal for Scientific Engineering Research
This paper presents a performance analysis of a three-phase interleaved buck-boost converter integrated with a Maximum Power Point Tracking (MPPT) algorithm using the Perturb and Observe (P&O) method for an independent wind energy generation system. The
Muhammad Qasim Nawaz Sciences   +2 more
doaj   +1 more source

Compatibility of electrical generators for harvesting extended power from wind energy conversion system

open access: yesMeasurement + Control, 2019
In this paper, a comparative study between the two generator types with wind energy conversion system is proposed. The two generator types are doubly fed induction generators and permanent magnet synchronous generators.
Dhas Bensam Samraj   +1 more
doaj   +1 more source

ENERGY STORAGE SYSTEM FOR HYDRAULIC WIND ENERGY TRANSFERS [PDF]

open access: yes, 2012
poster abstractGearless hydraulic transmissions are considered noble candidates for wind power transfer systems. Hydraulic wind power transfer systems allow collecting the energy of multiple wind turbines into one generation unit.
Hamzehlouia, Sina, Izadian, Afshin
core  

An efficient offshore wind-wave hybrid generation system using direct-drive multitoothed rotating and linear machines [PDF]

open access: yes, 2014
This paper presents an offshore wind-wave hybrid generation (WWHG) system, which can efficiently harness the offshore wind and wave energy. The key is to use the multitoothed doubly-salient permanent-magnet (MDSPM) machines for serving the rotating ...
Chau, KT, Lee, HT, Lin, F, Liu, C
core   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

Enhanced power quality in grid-connected wind energy systems using PI-controlled with doubly fed induction generator optimized by hybrid differential evolution and grey wolf algorithm

open access: yesElectrical engineering & Electromechanics
Introduction. Nowadays, the most widely used wind energy conversion system in wind farms is based on a doubly fed induction generator (DFIG); it has a large speed range and can function in multiple modes. Problem.
R. F. Abdelgoui, R. Taleb
doaj   +1 more source

A proposed national wind power R and D program [PDF]

open access: yes
An offshore wind power system is described that consists of wind driven electrical dc generators mounted on floating towers in offshore waters. The output from the generators supplies underwater electrolyzer stations in which water is converted into ...
Heronemus, W.
core   +1 more source

Small-Signal Modelling and Analysis of Doubly-Fed Induction Generators in Wind Power Applications [PDF]

open access: yes, 2008
The worldwide demand for more diverse and greener energy supply has had a significant impact on the development of wind energy in the last decades. From 2 GW in 1990, the global installed capacity has now reached about 100 GW and is estimated to grow ...
Mei, Francoise, Mei, Francoise
core   +1 more source

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