Results 61 to 70 of about 512,442 (296)
Advanced Engineering Materials, EarlyView.Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat +6 more
wiley +1 more source
IEEE Open Journal of the Industrial Electronics SocietyEuropean grid operators in ENTSO-E and others with a significant amount of inverter-based generation are experiencing a reduction in system inertia and short-circuit power.
Norbert R. Klaes, Jens Fortmann
doaj +1 more source
Optimal short‐circuit current control of the grid‐forming converter during grid fault condition
IET Renewable Power Generation, 2021 A considerable amount of rotating synchronous machines are being replaced by the increasing capacity of converter‐based resources, which has stimulated a demand for grid‐forming converters (GFCs) for grid supporting.
Chang Liu, Xu Cai, Rui Li, Renxin Yang
doaj +1 more source
Frequency Control in Power Systems with Large Share of Wind Energy
Energies, 2022 Fast frequency response from wind turbines and plants has been playing an increasingly important role in our modern power system, which has a large share of wind energy integration.
Liang Lu +2 more
doaj +1 more source
Inefficient star formation through turbulence, magnetic fields and feedback
, 2015 Star formation is inefficient. Only a few percent of the available gas in molecular clouds forms stars, leading to the observed low star formation rate (SFR). The same holds when averaged over many molecular clouds, such that the SFR of whole galaxies is
Federrath, Christoph
core +1 more source
Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
First air-tolerant effective stainless steel microbial anode obtained from a natural marine biofilm [PDF]
, 2009 Microbial anodes were constructed with stainless steel electrodes under constant polarisation. The seawater medium was inoculated with a natural biofilm scraped from harbour equipment.
Bergel, Alain, Erable, Benjamin
core +3 more sources
Advanced Engineering Materials, EarlyView.This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov +8 more
wiley +1 more source
Frontiers in Energy ResearchIntroductionGrid-forming control has received increasing attention for being an effective solution to cope with low-inertia and weak damping systems.
Xuekai Hu +3 more
doaj +1 more source
Flanged major modular assembly jig [PDF]
, 1976 Weldless methods and means are described for securing flanges to the projecting ends of an unmachined box beam framework in such a manner that the flanged structure may be reused without modification. And one framework may be readily assembled to another
Gilman, M. M.
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