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81.
Hisao Watanabe 《Letters in Mathematical Physics》1991,23(1):1-9
In this Letter, we show that the local time of self-intersections ofd-dimensional Brownian motions is a generalized Brownian functional in the sense of Hida. 相似文献
82.
The novel unnatural ring system, 1-phosphacephalosporin, was synthesized for the first time from 4-acetoxy-2-azetidinone. 相似文献
83.
Reaction of N-unsubstituted β-lactams with various S-substituted thiophthalimides provides an efficient route to the corresponding N-thio-2-azetidinones. 相似文献
84.
The lowest excited nπ* triplet of 9.10-anthraquinone, 1.4-naphthoquinone and 1,4-benzoquinone were studied in glassy matrices at 77 K using a time-resolved ESR method. The D value of the triplet state of 9,10-anthraquinone varied from ?0.351 cm?1 in a polar solvent to ?0.318 cm?1 in a non-polar solvent. Both 1,4-naphthoquinone and 1,4-benzoquinone in polar solvents showed triplet state spectra with a D value of ?0.330 cm?1. A computer simulation revealed the existence of widely distributed zero-field splitting parameters in the glassy condition. These data are compared with an analysis of CIDEP results of para-quinones. 相似文献
85.
Hisao Nakata Hiroshi Sakurai Hideo Yoshizumi Akira Tatematsu 《Journal of mass spectrometry : JMS》1968,1(2):199-204
Three isomeric compounds, I, II and III, were prepared and their mass spectra recorded. Comparisons of the spectra showed that the fragmentation of I proceeds only by way of II, and that II itself is transformed in part to III upon electron impact. It is suggested that selective ionization of each one of the two isolated functional groups in II may afford two isomeric radical ions, IIa and IIb. A possible interrelation to the photochemistry of these compounds is also discussed. 相似文献
86.
87.
Serizawa T Sawada T Matsuno H Matsubara T Sato T 《Journal of the American Chemical Society》2005,127(40):13780-13781
A combinatorial phage display method was applied to films composed of a stereoregular polymer of methacrylates. The phage clones with selective affinity for isotactic (it) poly(methyl methacrylate) (PMMA) were isolated. Greater amounts of the phage clones bound to it-PMMA, compared to other stereoregular PMMAs. The phage expressing ELWRPTR most strongly bound to the polymer, and the selectivity was also the best. The peptide motif essential for the specific interaction with the stereoregular polymer was revealed. 相似文献
88.
89.
Yoshimasa Hirata Hisao Nakata Kiyoyuki Yamada Kunio Okuhara Takayuki Naito 《Tetrahedron》1961,14(3-4):252-274
The structure of aureothin, the third nitro compound obtained from nature, has been elucidated as I. Several reactions of aureothin and its derivatives are described. 相似文献
90.
We made an explicit formula for beta-ray angular distribution by taking into account the radiative corrections, Coulomb corrections of the finite-size nucleus, weak magnetism, induced pseudoscalar, second-class induced tensor, and contributions of the d-wave leptons. Experimental data on the beta decays of aligned 12B and 12N given at Osaka are carefully investigated, and it is shown that these data are compatible with no induced tensor current, . The nuclear parameter y is 3.3±0.9 in excellent agreement with the predicted value 3.6. 相似文献