Results 71 to 80 of about 13,724 (297)

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Analysis of inertia damping characteristics of GFM wind turbines

open access: yesZhejiang dianli
Grid-forming (GFM) converters, known for their superior inertia damping characteristics, have emerged as a center research focus in the renewable energy sector. As a result, the damping characteristics of GFM wind power converters are first examined. The
WU Shuangxi   +6 more
doaj   +1 more source

Exploring an Alternative to mRNA Vaccine Cold Chain Storage: MRNA‐Lipid Nanoparticle Stability When Dried in a Polymer Matrix

open access: yesAdvanced Functional Materials, EarlyView.
The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett   +19 more
wiley   +1 more source

Operation of a Grid-Forming Converter Controlled by the Flux Vector

open access: yesIEEE Access
The electric power system is undergoing a significant transition. Renewable energy generation capacity has increased, leading to the displacement of synchronous generators (SG) and a growing concern about grid stability due to the decrease of rotating inertial energy. Grid-forming (GFM) converters have become a technological solution to this challenge,
Juan Dolado Fernández   +4 more
openaire   +2 more sources

Transient Stability Enhancement with High Shares of Grid-Following Converters in a 100% Converter Grid

open access: yes, 2020
The 2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe), Delft, The Netherlands, 26-28 October 2020With increasing shares of power electronics-based generation in power grids, grid-following converters may become unstable during faults,
Zhao, Xianxian   +3 more
core   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

How many grid-forming converters are needed? – A techno-economic perspective

open access: yesiEnergy
Renewable generation is rapidly increasing and transforming power systems toward “new-type power systems”. The integration of renewable energy resources necessitates a shift from conventional grid-following converters (GFLs) to advanced grid-forming ...
Guoxuan Cui   +3 more
doaj   +1 more source

Microgrid power electronic converters: state of the art and future challenges

open access: yes, 2009
This paper presents a review of the state of the art of power electric converters used in microgrids. The paper focuses primarily on grid connected converters.
Sharkh, S.M.   +4 more
core  

Resolving the Cu(bdc) Conundrum: Identifying Non‐Porous Packing of Prototypical Coordination‐Network Thin Films Combining Advanced Diffraction Techniques and Computational Modelling

open access: yesAdvanced Functional Materials, EarlyView.
Solution‐processed Cu(bdc) forms prototypical MOF thin films for which a multitude of not fully satisfactory structural models have been suggested. Combining rotating grazing‐incidence diffraction and X‐ray reflectivity on two complementary samples with density‐functional theory, we first discard the previously suggested models and then identify a non ...
Narges Taghizade   +7 more
wiley   +1 more source

Adaptability Analysis of Transmission Line Protection under the Control Strategy of Grid-Forming Energy Storage Converter

open access: yesZhongguo dianli
Under the dual carbon target, a large number of new energy sources are connected to the power grid, and relay protection is becoming increasingly important as the primary guarantee for the safe and stable operation of the power system.
Xiaoping FENG   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy