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11.
Ferruccio de Bacho 《Fresenius' Journal of Analytical Chemistry》1922,61(6):209-219
Ohne Zusammenfassung 相似文献
12.
Angelo Crugnola Antonio Longo Ferruccio Casabuona Paolo Lombardi 《Tetrahedron letters》1981,22(41):4141-4144
The synthesis of chiral “4,7-lactam“ has been accomplished starting from natural 6-aminopenicillanic acid. 相似文献
13.
Ugo Abbondanno Ferruccio Demanins Maria Rosa Malisan Giancarlo Nardelli 《Nuclear Physics A》1978,305(1):117-143
The de-excitation gammas following the inelastic scattering of neutrons from 75As have been studied for incident neutron energies from 1300 to 2800 keV in steps of 100 keV. The energy levels and the branching ratios of their decays have been deduced from excitation function measurements: 58 energy levels have been found in the excitation energy region below 2.8 MeV, twelve of which are reported for the first time in this work. The experimental excitation functions and angular distributions have been compared with the theoretical predictions based on the statistical theory of the compound nucleus. Spin and parity assignments for the levels and multipolarities for the decays are proposed for excitation energies of levels up to 2300 keV. 相似文献
14.
We construct a class of projective rational varieties X of any dimension m ≥ 1, which are smooth except at a point O, with the projective space ? m as normalization, having smooth branches, and reduced projectivized tangent cone in O. The Hilbert function of X is considered and is explicitly computed when the point O is seminormal. Indeed, we study seminormality, obtaining necessary and sufficient conditions for O to be seminormal and show that in such case the tangent cone is reduced and seminormal. 相似文献
15.
We explicitly explain how to fix a wrong statement in a preliminary result of our previous paper on the conductor at a multiplanar singularity. 相似文献
16.
17.
We prove the existence of smooth positive potentials V(t, x), periodic in time and with compact support in x, for which the Cauchy problem for the wave equation utt ? Δxu + V(t, x)u = 0 has solutions with exponentially growing global and local energy. Moreover, we show that there are resonances, z ∈ ?, |z| > 1, associated to V(t, x). © 2008 Wiley Periodicals, Inc. 相似文献
18.
Abstract We study relations between modulus of continuity of the coefficients and loss of derivatives in the Cauchy problem for evolution
operators with real characteristics in the Petrovsky sense. We also provide counterexamples to show that the obtained classification
is sharp.
Keywords: Cauchy problem, Evolution equations, Loss of regularity of the solution 相似文献
19.
Andrea Brignole Ferruccio Feruglio Fabio Zwirner 《Zeitschrift fur Physik C Particles and Fields》1996,71(1):679-688
We examine the phenomenological implications of light $\tilde t_R $ and higgsinos in the Minimal Supersymetric Standard Model, assuming tan2 β<m t m b and heavy $\tilde t_L $ and gauginos. In this simplified setting, we study the contributions to Δm B d,ε K,BR(b→sγ),R b≡Γ(Z→bb) /Γ(Z→hadrons),BR(t→bW), and their interplay. 相似文献
20.
We briefly review the recent activity on neutrino masses and mixings which was prompted by the confirmation of neutrino oscillations by the Superkamiokande experiment. 相似文献