[en] The mixing ratios (δ) and the internal conversion electron particle parameters (b₂) of the 121.8KeV transition in deformed ¹⁵²Sm nuclei were determined by comparing the γ-γ and γ-e angular correlation measurements made with the same source. The experimental apparatus was constructed with a surface barrier detector for electrons and two Ge(Li) detectors for gamma rays. The following results were obtained. 244.7 KeV - 121.8 KeV ; δ = -0.012±0.007 688.6 KeV - 121.8 KeV ; δ = 17.4±3.01 964.0 KeV - 121.8 KeV ; δ = 9.51±1.93 1112.0 KeV - 121.8 KeV ; δ = 12.30±2.05 1408.0 KeV - 121.8 KeV ; δ = 0.16±0.07 964.0 KeVγ - 121.8 keVe_k ; b₂ = 1.66±0.26 1408.0 KeVγ - 121.8 KeVe_k ; b₂ = 1.63±0.10 1408.0 KeVγ - 121.8 KeVe_L ; b₂ = 0.99±0.13 The results are compared with the theoretical values derived from the Pairing-Plus-Quadrupole model and from the Interacting-Boson-Approximation model, and an anomaly was found in the low-lying E2 transition for deformed ¹⁵²Sm nuclei. (Author)

[en] Neutrino oscillations in different schemes of neutrino mixing requiring an even number of charged leptons are investigated. The theory with only either Dirac or Majorana mass terms is considered. It is shown that the Dirac and Majorana mass cases are distinguishable through the character of their oscillations. In the first case there is one oscillation length and in the second case there are two oscillation lengths

No abstract available

[en] Exact expressions for the mixing parameters are obtained in terms of mass ratios in the standard Weinberg-Salam model with permutation symmetry S₃ for six quarks. The CP-violating phase is ignored, and there are no arbitrary parameters except for the quark masses. In the lowest order, the angles defined by Kobayashi-Maskawa are sin theta/sub 1/ = sin theta/sub c/ = (m/sub d//m/sub d/ + m/sub s/)/sup 1/2/, sin theta₃ = -sin theta/sub 3/ = -m²/sub s//m²/sub b/, and m/sub t/m/sub s/ greater than or equal to m/sub c/m/sub b/ = 7.2 GeV² or m/sub t/ greater than or equal to 24 GeV for m/sub s/ = 0.3 GeV

[en] The newly proposed finite symmetry Σ(81)is applied to the problem of neutrino tribimaximal mixing. The result is more satisfactory than those of previous models based on A₄ in that the use of auxiliary symmetries (or mechanisms) may be avoided. Deviations from the tribimaximal pattern are expected, but because of its basic structure, only tan²(Θ₁₂) may differ significantly from 0.5 (say 0.45) with sin²(2*Θ₂₃) remaining very close to unity, and Θ₁₃ very nearly zero. (authors)

[en] In the S₄ model, we work out the simplest possible scheme for neutrino masses. We find that ν/sub e/ and ν/sub μ/ have dominant massless components but not ν/sub tau/. The mixing matrix is completely determined and ν/sub e/-ν/sub tau/ and ν/sub μ/-ν/sub tau/ oscillations are possible with known mixing angles and only one deltam²

No abstract available

[en] The effects of different monomers on performances of UV-curable inkjet ink are different. In order to improve the performance of UV-curable inkjet ink, through studying on performances of inks prepared by different monomers, the mixed monomers which was made up of EOEOEA. DPGDA and NPGDA was designated in this paper, and the effects of the mixed monomer on performance of UV-curable inkjet ink were studied. The UV-curable inkjet were prepared by changing the proportions of the mixed monomer with the way of formulation experiment. The effects of the mixed monomer on performance of UV-curable inkjet ink were studied as well. The results indicated that the optimum proportion was 3:30:20. (Author)

[en] We review the results of global analyses of short-baseline neutrino oscillation data in 3+1 and 3+2 neutrino mixing schemes

[en] Some problems connected with the high-precision study of neutrino oscillations are discussed. In the general case of n-neutrino mixing, a convenient expression for transition probability, in which only independent terms (and mass-squared differences) enter, is derived. For three-neutrino mixing, a problem of a definition of a large (atmospheric) neutrino mass-squared difference is discussed. The possibilities to reveal the character of neutrino mass spectrum in future reactor neutrino experiments are commented on as well.