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101.
D. Suematsu 《The European Physical Journal C - Particles and Fields》2007,52(1):211-221
We study phenomenological features in an extended gauge mediation SUSY breaking model that has non-universal gaugino masses
and CP phases. We show that large CP phases in soft SUSY breaking parameters can be consistent with the constraints coming
from the electric dipole moment (EDM) of an electron, a neutron, and also a mercury atom. Masses of the superpartners are
not necessarily required to be larger than 1 TeV but allowed to be O(100) GeV. We also investigate the mass spectrum of Higgs
scalars and their couplings to gauge bosons in that case. Compatibility of this model with the present experimental data on
the Higgs sector is discussed. 相似文献
102.
By improving previous studies of the sound attenuation in bismuth at high magnetic fields, we have found a new phenomenon showing discontinuity in the attenuation curves and an associated hysteresis for the positions of discontinuity in the cycle of field variation. 相似文献
103.
An ordered state with a complex magnetic structure has been observed below 4CK. The magnetization for H ⊥ c (c; the c-axis) shows a field-induced phase transition from a small magnetic moment state ( ~ 0.6μB) at lower fields to a larger moment one ( 2.2 - 2.5μB) above 25kG. The transition field depends on temperature and is found to be 5 - 2kG. The magnetization for H//c has only a sublinear field dependence. Above 40K the magnetic susceptibility obeys the Curie-Weiss law with θ = +1.3K and the molar Curie constant Cm = 6.78, which suggests that Eu ion is divalent in C6Eu. 相似文献
104.
Masami Inoue Reiko Abe Hideo Tamamura Minoru Ohta Keiko Asami Hisayuki Kitani Hideko Kamei Yumiko Nakamura Tokuhiro Watanabe Akihiro Ohta 《Journal of heterocyclic chemistry》1985,22(5):1291-1296
In order to examine the α-substitution of side chains, various derivatives of 2,5-diisopropyl- and 2,5-disec-butylpyrazine 1-oxides were subjected to the reaction with phosphoryl chloride and acetic anhydride. Chlorination and acetoxylation were recognized to take place on the pyrazine ring in almost all cases. 相似文献
105.
Film-forming aromatic polyimines were prepared by low temperature solution polymerization of aromatic dialdehyde and aromatic diamine usingm-cresol. The polymerization proceeded rapidly to give high molecular weight polyimine solutions. Fibrous polymers were precipitated by pouring the solutions into anhydrous methanol. Lemon yellow-to-orange films were cast in situ from the reaction solutions. The polymers showed typical C=N stretching absorption near 1620 cm?1 in infrared spectra and had high glass transitions of over 200 ?C but showed low crystallinity. 相似文献
106.
H. Suematsu J. Lindén M. Nagase M. Karppinen H. Yamauchi 《Journal of solid state chemistry》2004,177(6):1958-1964
The space group of the BaY(Cu0.5Fe0.5)2O5+δ (δ=0.03-0.17) phase was studied by selected-area electron diffraction and convergent-beam electron diffraction (CBED). The CBED patterns for BaY(Cu0.5Fe0.5)2O5.03 grains taken from the zone axes of [111], [001] and [010] had the symmetries of m, 4mm and 2mm, respectively. Forbidden reflections were observed neither in selected-area electron diffraction nor in the CBED patterns. From these results, the space group of the BaY(Cu0.5Fe0.5)2O5.03 was determined to be P4/mmm. Since the presence of a mirror plane parallel to the (Cu,Fe)O2 planes was confirmed, Cu and Fe were found to be randomly distributed in the (Cu,Fe)O2 planes. The same analyses were performed for BaY(Cu0.5Fe0.5)2O5.17 grains and the space group was also found to be P4/mmm. The change in the magnetic properties of BaY(Cu0.5Fe0.5)2O5+δ samples due to the high-pressure heat-treatment was concluded to be caused by excess of oxygen. 相似文献
107.
Hisayuki Hara 《Journal of multivariate analysis》2001,77(2):175
It is well known that the best equivariant estimator of the variance covariance matrix of the multivariate normal distribution with respect to the full affine group of transformation is not even minimax. Some minimax estimators have been proposed. Here we treat this problem in the framework of a multivariate analysis of variance (MANOVA) model and give other classes of minimax estimators. 相似文献
108.
109.
110.
Kazunari Takaya Takahiro Kaneko Hajime Tanuma Tatsuhiro Nishide Hiroaki Sugiyama Nobuo Nakano Hisayuki Nagashima Yasuo Seto 《International Journal for Ion Mobility Spectrometry》2016,19(4):227-232
We determined new potential parameters for a calculation of ion mobility in air using the MOBCAL program. In our model, we regard air as a virtual uni-atomic molecular gas. And the Lennard-Jones parameters for various kinds of atoms in molecular ions were determined with simple and systematic methods. Using these parameters, we have calculated the mobilities of product ions from chemical warfare agents, normal saturated hydrocarbons, and illicit drugs. Most of the calculation results showed good agreement with the experimental values. Therefore this calculation method will be useful for understanding of the ion mobility spectrometry in air. 相似文献