In [14] Matsuda and Yorozu.explained that there is no special Bertrand curves in Eⁿ and they new kind of Bertrand curves called (1,3)-type Bertrand curves Euclidean space. In this paper , by using the similar methods given by Matsuda and Yorozu [14], we obtain that bitorsion of the quaternionic curve is not equal to zero in semi-Euclidean space E4^2. Obtain (N,B2) type quaternionic Bertrand cur...

In directional statistics, the von Mises distribution is a key element in analysis of circular data. While there general agreement regarding estimation its location parameter μ, several methods have been proposed to estimate concentration κ. We here provide thorough evaluation behavior 12 such estimators for datasets size N ranging from 2 8192 generated with κ 0 100. detailed results as well gl...

Address for Correspondence: 17 Boonchai Chaiyasirinroje, B.Sc. 18 1050/1 Satarnpayabarn Rd., Muang District 19 Chiang Rai 57000, Thailand 20 Tel: +66-53-713135 21 Fax: +66-53-752448 22 Email: [email protected] 23 24 Address for other authors: 25 Linwei Wang, M.Sc. Candidate 26 Edmonton Clinic Health Academy 4-051 27 11405 87 Avenue, Edmonton, Alberta, Canada, T6G 1C9 28 Email: linwei1@ualberta...

In the Results section under subheading 'Scattering cancellation technique for heat diffusion waves: static regime' " For → ∞ r , κ θ (>) = − (/) T r a Q rcos 2 0 , therefore κ = − / E Q 1 0 and all the other coefficients ≠ E l 1 are zero. " should read: " For → ∞ r , κ θ (>) = − (/)  T r a Q rcos 2 0 with κ = − (−)/  Q T T L 0 2 1 the heat generated by unit surface and unit time, in contrast...