Results 21 to 30 of about 786,447 (315)
Parameter Evaluation Procedure for Gapped Core Current Transformers Considering Accuracy Requirements under Transient Conditions [PDF]
E3S Web of Conferences, 2020 Particular features of gapped core current transformers and characteristics of transient phenomena inside them are under consideration; a procedure is proposed that allows for evaluating the excitation limiting e.m.f.
Vorobiev Victor +6 more
doaj +1 more source
Recursive least squares for online dynamic identification on gas turbine engines [PDF]
, 2016 Online identification for a gas turbine engine is vital for health monitoring and control decisions because the engine electronic control system uses the identified model to analyze the performance for optimization of fuel consumption, a response to ...
Nalianda, Devaiah +2 more
core +1 more source
Mechanically-assisted crevice corrosion and its effect on materials degradation
Corrosion Communications, 2023 Mechanically-assisted crevice corrosion (MACC) is a synergistic combination of wear and crevice corrosion. The major differences between tribocorrosion, fretting corrosion and MACC relate to the relative scale of motion and contact area, are clarified in
Weichen Xu +5 more
doaj +1 more source
Frontiers in Materials, 2022 Rail foot covered by a fastener will suffer from crevice corrosion, leading to thinning and localized attack of crevice interior posing a risk of failure. This work investigated crevice corrosion behavior of a typical pearlitic high-speed rail steel U75V,
Jian Wang +18 more
doaj +1 more source
The Pilling-Bedworth Ratio of Oxides Formed From the Precipitated Phases in Magnesium Alloys
Frontiers in Materials, 2021 The Pilling-Bedworth ratio of oxides preferentially formed from the precipitated phases in magnesium alloys were calculated. The results showed that the PBR value of Nd2O3 preferentially formed from Mg12Nd was 1.0584, and the PBR value of Y2O3 ...
Quantong Jiang +14 more
doaj +1 more source
Decision-making for unmanned aerial vehicle operation in icing conditions [PDF]
, 2016 With the increased use of unmanned aerial systems (UAS) for civil and commercial applications, there is a strong demand for new regulations and technology that will eventually permit for the integration of UAS in unsegregated airspace.
Armanini, S. F. +4 more
core +1 more source
Corrosion Communications, 2023 Desulfovibrio bizertensis (D. bizertensis), an SRB isolated and cultured from the rust layer of the South China Sea, is widespread in the corrosive microbial communities on steel surface.
Xucheng Dong +6 more
doaj +1 more source
Corrosion Communications, 2021 Super-hydrophobic surfaces have attracted much attention for their potential applications based on the lotus effect, especially in corrosion protection. However, the lotus effect has limited application given its high dependence on external forces, such ...
Peng Wang +4 more
doaj +1 more source
Enhanced transmission line pilot impedance and pilot protection
IET Generation, Transmission & Distribution, 2011 This study proposes a novel pilot protection for transmission lines by using enhanced transmission line pilot impedance (ETLPI). The ETLPI is defined by the ratio of the voltage difference of fault-superimposed component to the current summation of fault-superimposed component at both terminals of the protected line and used to distinguish the internal
J. Xia +5 more
openaire +1 more source
The peroxidation of leukocytes index ratio reveals the prooxidant effect of green tea extract [PDF]
, 2016 Despite tea increased plasma nonenzymatic antioxidant capacity, the European Food Safety Administration (EFSA) denied claims related to tea and its protection from oxidative damage.
Longhitano, Yaroslava +6 more
core +3 more sources