Results 71 to 80 of about 1,746,259 (365)

A modified particle swarm optimization based maximum power point tracking for photovoltaic converter system [PDF]

open access: yes, 2015
This thesis presents a modified Particle Swarm Optimization based Maximum Power Point Tracking for Photovoltaic Converter system. All over the world, many governments are striving to exploit the vast potential of renewable energy to meet the growing ...
Abdulkadir, Musa
core  

Speed control of synchronous machine by changing duty cycle of DC/DC buck converter [PDF]

open access: yes, 2016
Global Conference on Energy and Sustainable Development, 2015-02-24, 2015-04-26, Coventry, UKRenewable energies such as wind or solar energy are naturally intermittent and can create technical challenges to interconnected grid in particular with high ...
Abusara, M, Al-Badwawi, R, Mallick, TK
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Non-linear effects in electron cyclotron current drive applied for the stabilization of neoclassical tearing modes [PDF]

open access: yes, 2014
Due to the smallness of the volumes associated with the flux surfaces around the O-point of a magnetic island, the electron cyclotron power density applied inside the island for the stabilization of neoclassical tearing modes (NTMs) can exceed the ...
Ayten, B.   +2 more
core   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Global maximum power point tracking for solar power systems using the hybrid artificial fish swarm algorithm

open access: yesGlobal Energy Interconnection, 2019
Maximum power point tracking (MPPT) techniques are used to maintain photovoltaic modules operating points at the local maximum power points under non-uniform irradiance conditions (NUIC).
Jianpo Li, Pengwei Dong
doaj   +1 more source

Complementary Power Control for Doubly Fed Induction Generator-Based Tidal Stream Turbine Generation Plants [PDF]

open access: yes, 2017
The latest forecasts on the upcoming effects of climate change are leading to a change in the worldwide power production model, with governments promoting clean and renewable energies, as is the case of tidal energy.
Bouallègue, Soufiene   +4 more
core   +3 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Influence of a Hybrid MPPT Technique, SA-P&O, on PV System Performance under Partial Shading Conditions

open access: yesEnergies, 2023
The electricity sector has been undergoing profound transformations. In particular, the Portuguese self-consumer regime has allowed customers of the medium and low voltage electricity grid to be producers/consumers of electricity, actively contributing ...
Ahmed G. Abo-Khalil   +3 more
doaj   +1 more source

Solar Energy Delivering Greenhouse with an Integrated NIR filter [PDF]

open access: yes
The scope of this investigation is the design and development of a new type of greenhouse with an integrated filter for rejecting near infrared radiation (NIR) and a solar energy delivery system. Cooled greenhouses are an important issue to cope with the
Bot, G.P.A.   +4 more
core   +2 more sources

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