Results 31 to 40 of about 69,869 (259)
Jurnal Rekayasa Elektrika, 2020 Installation of distributed generations (DGs) in distribution network bring benefits for power system operation. However, DGs change the distribution network topologies from radial with one source into multi-sources network, hence magnitude and direction
Adrianti Adrianti +2 more
doaj +1 more source
Integrable Discrete Geometry: the Quadrilateral Lattice, its Transformations and Reductions
, 1999 We review recent results on Integrable Discrete Geometry. It turns out that most of the known (continuous and/or discrete) integrable systems are particular symmetries of the quadrilateral lattice, a multidimensional lattice characterized by the ...
Adam Doliwa +3 more
core +2 more sources
Journal of Advanced Sciences and Mathematics EducationBackground: Understanding mathematical concepts is essential for students, as it forms the basis for developing other mathematical abilities. Many students struggle with abstract mathematical ideas, particularly in geometry.
Achmad Buchori +2 more
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A comparison between different finite elements for elastic and aero-elastic analyses
Journal of Advanced Research, 2017 In the present paper, a comparison between five different shell finite elements, including the Linear Triangular Element, Linear Quadrilateral Element, Linear Quadrilateral Element based on deformation modes, 8-node Quadrilateral Element, and 9-Node ...
Mohamed Mahran +2 more
doaj +1 more source
The Chicago-Lambeth Quadrilateral: Development in an Anglican Approach to Christian Unity [PDF]
, 1996 The Chicago-Lambeth Quadrilateral has served as the primary reference point and working document of the Anglican Communion for ecumenical Christian reunion.
Slocum, Robert B.
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Quadratic reductions of quadrilateral lattices
, 1998 It is shown that quadratic constraints are compatible with the geometric integrability scheme of the multidimensional quadrilateral lattice equation. The corresponding Ribaucour reduction of the fundamental transformation of quadrilateral lattices is ...
Adam Doliwa +33 more
core +2 more sources
Spherical quadrilaterals with three non-integer angles [PDF]
, 2015 We classify spherical quadrilaterals up to isometry in the case when one inner angle is a multiple of pi while the other three are not. This is equivalent to classification of Heun's equations with real parameters and one apparent singularity such that ...
Eremenko, Alexandre +2 more
core +4 more sources
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
The symmetric, D-invariant and Egorov reductions of the quadrilateral lattice
, 2000 We present a detailed study of the geometric and algebraic properties of the multidimensional quadrilateral lattice (a lattice whose elementary quadrilaterals are planar; the discrete analogue of a conjugate net) and of its basic reductions. To make this
Doliwa, Adam, Santini, Paolo Maria
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Advanced Engineering Materials, EarlyView.High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin +4 more
wiley +1 more source