Results 11 to 20 of about 7,461 (155)
Reduced Offspring Viability Is Associated With Long-Term Stability of a Narrow Avian Hybrid Zone. [PDF]
Ecol EvolWe investigated hybrid viability in a tropical, avian hybrid zone governed by strong selection on male secondary sexual traits between the white‐collared manakin (Manacus candei) and golden‐collared manakin (M. vitellinus). We assessed putative hybrid fitness by investigating adult survival and hatching success along with a prospective selective ...
Long KM +5 more
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IEEE Access, 2021 Detection of transformer faults avoids the transformer’s undesirable loss from service and ensures utility service continuity. Diagnosis of transformer faults is determined using dissolved gas analysis (DGA).
Sherif S. M. Ghoneim +4 more
doaj +1 more source
Automatika, 2023 The current work aims to propose an adequate thermodynamic model, in addition to proposing and evaluating two composite models for the thermal decomposition of insulating mineral oil (IMO), considering that the models based on classical diagnostic ...
A. Manjula +6 more
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Transactions on Environment and Electrical Engineering, 2016 Dissolved gas-in-oil analysis (DGA) is a sensitive and reliable technique for the detection of incipient fault condition within oil-immersed transformers. When the mineral oil is subjected to high thermal or/and electrical stresses, it decomposes and, as
Sobhy Serry Dessouky +3 more
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Analysis of Transformer Conditions using Triangle Duval Method
IOP Conference Series: Materials Science and Engineering, 2018 Abstract Electrical or thermal failure that occurred in the transformer oil can produce a dangerous gas called gas fault. By indicating the content of dissolved gases in the transformer oil, can be obtained information about what happened to the oil so it can be estimated indication of the type and cause of the failure in the transformer.
S Permana, S Sumarto, W S Saputra
openaire +1 more source
A Simple and Efficient Regularization Method for 3D BEM: Application to Frequency-Domain Elastodynamics [PDF]
, 2005 An efficient and easy-to-implement method is proposed to regularize integral equations in the 3D boundary element method (BEM). The method takes advantage of an assumed three-noded triangle discretization of the boundary surfaces.
Dangla, Patrick +3 more
core +6 more sources
Fault diagnosis of transformer using artificial intelligence: A review
Frontiers in Energy Research, 2022 Transformer is one of the important components of the power system, capable of transmitting and distributing the electricity generated by renewable energy sources.
Yan Zhang +3 more
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Simplicial and Cellular Trees [PDF]
, 2015 Much information about a graph can be obtained by studying its spanning trees. On the other hand, a graph can be regarded as a 1-dimensional cell complex, raising the question of developing a theory of trees in higher dimension.
Duval, Art M. +2 more
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Diagnosing the type and location of the transformer fault by analyzing the dissolved gas using fuzzy logic [PDF]
هوش محاسباتی در مهندسی برقThere are many methods to diagnose transformer faults, including dissolved gas analysis (DGA), done in two conventional and smart ways. This paper presents a new method based on fuzzy logic and 5 DGA methods (key gas method, Durenberg's ratio method ...
Mohamad Beiranvand, Asghar Akbari Froud
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The Turbulence Spectrum of Molecular Clouds in the Galactic Ring Survey: A Density-Dependent PCA Calibration [PDF]
, 2011 Turbulence plays a major role in the formation and evolution of molecular clouds. The problem is that turbulent velocities are convolved with the density of an observed region.
Brunt, Christopher +5 more
core +2 more sources