Results 131 to 140 of about 120,988 (308)

Consideration for a sustainable hybrid electric power mini-grid : case study for Wanale village in Uganda

open access: yes, 2011
In this study, a hybrid mini-grid system is designed to supply electricity to a rural village in Uganda. Renewable energy resources are identified, an estimation of the projected village short-term electricity demand is simulated, and using HOMER ...
Kimera, Raymond
core  

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Application of Dual-Grid-Forming MMC for Seamless Transition between Grid Connected and Islanded Operation in Microgrids [PDF]

open access: yes
This paper presents a control strategy based on dual-grid-forming applied to modular multilevel converters. The goal is to ensure seamless transitions between grid-connected and island operations in ac microgrids.
Rabanal Alcubilla, Arkaitz   +2 more
core  

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

Protection of distribution networks with distributed generation

open access: yes, 2011
The share of electric power from small scale Distributed Generation (DG) connected to low voltage distribution networks (DNs) is increasing in the electricity market day by day as this technology is not only becoming cheaper relative to other resources ...
Hussain, Babar
core  

Hybrid AC/DC microgrid test system simulation: grid-connected mode. [PDF]

open access: yesHeliyon, 2019
Ortiz L   +5 more
europepmc   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

open access: yesAdvanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti   +12 more
wiley   +1 more source

Grid-connected PV inverter.

open access: yes
Photovoltaic (PV) system parameters are always non-linear due to variable environmental conditions. The Maximum power point tracking (MPPT) is difficult under multiple uncertainties, disruptions and the occurrence of time-varying stochastic conditions ...
Luqman Khan (17921419)   +4 more
core   +1 more source

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

open access: yesAdvanced Materials, EarlyView.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang   +20 more
wiley   +1 more source

Analisis Stabilitas Tegangan dan Frekuensi pada Microgrid AC Terhubung DG pada Mode Grid Connected dan Islanding [PDF]

open access: yes, 2017
Microgrid merupakan satu kesatuan unit yang terdiri dari distributed generation (DG) dan beban dalam sistem tenaga listrik. Sumber pembangkit tersebar (DG) meliputi minihidro, photovoltaic, wind turbine, diesel dan lain-lain.
Arbi, Syamsul
core  

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