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131.
Seiji Ono 《Nuclear Physics B》1976,107(3):522-534
We use the non-relativistic harmonic oscillator quark model to study electromagnetic properties of baryons. We show that the wave function radius can be determined very precisely (within 2 ~ 3% error) studying the electromagnetic mass difference. The obtained value (R2 = 2.75 GeV?2) is much smaller than that which is widely believed (6 GeV? ? R2 ? 16 GeV?2).We use this value to study photo- and electro-production processes. It is shown that if this small R2 is used and if the amplitude is calculated in the frame where the non-relativistic approximation is the best, the predicted results for these processes (including the helicity structures of D13 and F15) agree with the experimental data remarkably well. 相似文献
132.
133.
Seiji Takano 《Journal of multivariate analysis》1973,3(1):93-101
The problem of multivariate information analysis is considered. First, the interaction information in each dimension is defined analogously according to McGill [4] and then applied to Markov chains. The property of interaction information zero deeply relates to a certain class of weakly dependent random variables. For homogeneous, recurrent Markov chains with m states, m ≥ n ≥3, the zero criterion of n-dimensional interaction information is achieved only by (n ? 2)-dependent Markov chains, which are generated by some nilpotent matrices. Further for Gaussian Markov chains, it gives the decomposition rule of the variables into mutually correlated subchains. 相似文献
134.
Ken-ichi Kanno Shun-ichi Naoe Seiji Mukai Yoshio Nakai Takeshi Miyanaga 《Solid State Communications》1973,13(9):1325-1328
The absorption spectra of CdCl2 and CdBr2 single crystals doped with cuprous or cupric halides were measured. Optical bleaching of the absorption bands due to Cu+ gives rise to new absorption bands which suggest the conversion of Cu+→Cu2+. This was confirmed also by detecting the growth in ESR signals characteristic of Cu2+ centers. 相似文献
135.
The "cation pools" of alkoxyarylcarbenium ions were effectively generated by the oxidative C-C bond dissociation using low temperature electrolysis. The present method is especially effective for the generation and accumulation of dications, which react with carbon nucleophiles. 相似文献
136.
Shirakawa M Fujita N Tani T Kaneko K Shinkai S 《Chemical communications (Cambridge, England)》2005,(33):4149-4151
A newly synthesized 8-quinolinol platinum(II) chelate derivative gelates various organic solvents, and the gel formed shows unique thermo- and solvatochromism of visible and phosphorescent colour in response to a sol-gel phase transition and possesses an attractive ability to inhibit dioxygen quenching of excited triplet states. 相似文献
137.
We introduce the notion of signature for relations in mapping class groups and show that the signature of a Lefschetz fibration over the 2-sphere is the sum of the signatures for basic relations contained in its monodromy. Combining explicit calculations of the signature cocycle with a technique of substituting positive relations, we give some new examples of non-holomorphic Lefschetz fibrations of genus and which violate slope bounds for non-hyperelliptic fibrations on algebraic surfaces of general type.
138.
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140.
Seiji Fukushima Eiichi Sano Yasuro Yamane Kouichi Genda Tsuneo Matsumura 《Fiber and Integrated Optics》1998,17(4):243-253
Serial optical interconnection is proposed for connections in a Torus asynchronous transfer mode switch. A cross-point switch was developed that operates at a bit rate of 20 Gbit/s. The switching operation was successfully performed using cascaded cross-point switches through an optical interconnection configuration consisting of commercial optoelectronics devices. The measured switching rate was 10 Gbit/s, and it was limited by the responses of the optoelectronics devices. 相似文献