Results 21 to 30 of about 287 (158)
IET Nanodielectrics, Volume 4, Issue 3, Page 130-142, September 2021., 2021 Abstract The suitability of corn oil nanofluid as an insulation material is studied herein by analysing the partial discharge characteristics. Experiments are conducted on nano‐silica modified corn oil at 0.01, 0.05, and 0.1 wt.% mass fractions. Electrode configurations are used to generate partial discharge (PD) sources such as corona discharge ...
Shantha Kumar M +2 more
wiley +1 more source
Advanced Engineering Materials, Volume 23, Issue 5, May 2021., 2021 Herein, a study of hydrophobic carbon nanotube coatings aimed at protecting low‐alloy steels from corrosive environments is conducted. Three different coatings systems are proposed, as well as a novel postprocessing technique. It is concluded that the postprocess is an effective method to transform a hydrophilic coating into a near‐superhydrophobic ...
Bruno Alderete +5 more
wiley +1 more source
R-matrices for the semicyclic representations of Uq(2) [PDF]
Physics Letters A, 1992 R-matrices for the semicyclic representations of U_qsl^(2) are found as a limit in the checkerboard chiral Potts model.
Ivanov, I. T., Uglov, D. B.
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On the areas of cyclic and semicyclic polygons
Advances in Applied Mathematics, 2005 We investigate the ``generalized Heron polynomial'' that relates the squared area of an n-gon inscribed in a circle to the squares of its side lengths. For a (2m+1)-gon or (2m+2)-gon, we express it as the defining polynomial of a certain variety derived from the variety of binary (2m-1)-forms having m-1 double roots.
F. Miller Maley +2 more
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The semicycles of solutions of neutral difference equations
Applied Mathematics Letters, 2000 The authors study the semicycles of solutions to the neutral delay difference equation \[ \Delta(y_n+ p_ny_{n-\tau}) +q_ny_{n-\sigma} =0. \] Here \(\{p_n\}\) and \(\{q_n\}\) are sequences of nonnegative real numbers, \(\tau\) and \(\sigma\) are positive integers. Upper bounds on the number of terms of semicycles are determined.
Yong Zhou 0005, B. G. Zhang
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Zeitschrift für anorganische und allgemeine Chemie, Volume 646, Issue 4, Page 207-214, February 28, 2020., 2020 The reaction of MCl4(thf)2 (M = Zr, Hf) with 1,4‐dilitiobutane in diethyl ether at –25 °C or at 0 °C with a molar ratio of 1 : 3 yields the homoleptic “ate” complexes [(thf)4Li] [{(thf)Li}M(C4H8)3] 1‐Zr (M = Zr) and 1‐Hf (M = Hf). The crystalline compounds form ion lattices with solvent‐separated [(thf)4Li]+ cations and [{(thf)Li}M(C4H8)3]– anions. The
Reinald Fischer +5 more
wiley +1 more source
Global Dynamics of Some Exponential Type Systems
Discrete Dynamics in Nature and Society, Volume 2020, Issue 1, 2020., 2020 We explore the boundedness and persistence, existence of an invariant rectangle, local dynamical properties about the unique positive fixed point, global dynamics by the discrete‐time Lyapunov function, and the rate of convergence of some (2,3)‐type exponential systems of difference equations. Finally, theoretical results are numerically verified.
A. Q. Khan +7 more
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Discrete Dynamics in Nature and Society, Volume 2020, Issue 1, 2020., 2020 We investigate the local and global character of the unique equilibrium point and boundedness of the solutions of certain homogeneous fractional difference equation with quadratic terms. Also, we consider Neimark–Sacker bifurcations and give the asymptotic approximation of the invariant curve.
Mirela Garić-Demirović +4 more
wiley +1 more source
Reformation of an oblique shock observed by Cluster [PDF]
, 2009 [1] On 16 March 2005, the Cluster spacecraft crossed a shock almost at the transition between the quasi-perpendicular and quasi-parallel regimes (θ Bn = 46°) preceded by an upstream low-frequency (≈0.02 Hz in the spacecraft frame) wave train observed for
B. Lefebvre +4 more
semanticscholar +1 more source
On a System of k‐Difference Equations of Order Three
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 In this paper, we deal with the global behavior of the positive solutions of the system of k‐difference equations un+11=α1un−11/β1+α1un−22r1, un+12=α2un−12/β2+α2un−23r2,…, un+1k=αkun−1k/βk+αkun−21rk,n∈ℕ0, where the initial conditions u−lil=0,1,2 are nonnegative real numbers and the parameters αi, βi, γi, and ri are positive real numbers for i = 1,2, …,
Ibrahim Yalçınkaya +4 more
wiley +1 more source