New syntheses of heterocycles utilizing o-functionalized phenyl isothiocyanates

鳥取大学博士(工学)thesi

Phase structure and vortex configurations of superconductors coexisting with ferromagnetism

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Simultaneous measurement of beta(-) decay to bound and continuum electron states

We report the first measurement of a ratio lambda(beta b)/lambda(beta c) of bound-state (lambda(beta b)) and continuum-state (lambda(beta c)) beta(-)-decay rates for the case of bare Tl-207(81+) ions. These ions were produced at the GSI fragment separator FRS by projectile fragmentation of a Pb-208 beam. After in-flight separation with the B rho-Delta E-B rho method, they were injected into the experimental storage-ring ESR at an energy of 400.5A MeV, stored, and electron cooled. The number of both the Tl-207(81+) ions and their bound-state beta(-)-decay daughters, hydrogenlike Pb-207(81+) ions, were measured as a function of storage time by recording their Schottky-noise intensities. The experimental result, lambda(beta b)/lambda(beta c)=0.188(18), is in very good agreement with the value of 0.171(1) obtained from theory employing spectra of allowed transitions.textapplication/pdfjournal articl

Measurement of Inclusive Ds, D0, and J/ Rates and Determination of the B Production Fraction in b Events at the (5S) Resonance

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ズイソウ

第3部:60周年によせてapplication/pdfdepartmental bulletin pape

多孔質セラミックスの切欠き破壊強度のR曲線法による評価

Notched specimens of two kinds of porous ceramics with porosity 40％ whose mean grain sizes were 200 and 500 μm were fractured under four-point bending. A single edge notch with nine depths ranging from 0.1 to 4.8 mm was introduced to the rectangular specimen with a height of 8 mm. Small notches were non-damaging and fracture did not start from the notches. The size of the non-damaging notch was larger for larger grain-sized material. The load versus strain record showed nonlinearity before reaching the maximum load for all specimens fractured from the notch. The critical stress intensity factor for crack initiation from the notch was nearly constant. The resistance curve was constructed by estimating the crack length from the compliance change of the specimen, and was successfully used for determining the maximum load point in bending tests. Fractographic observations showed that fracture occurred at the binder phase or in the particle containing many tiny holes.journal articl

ノズル付き球かくの応力に関する光弾性実験

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