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101.
In 1′, 1‴-dibutylbiferrocenium triiodide crystals A show temperature-independent trapped-valence state, while crystals B show
a valence-delocalization of the mixed-valence state. The mixed-valence states of both crystals are discussed in relation to
their crystal structures.
Address after October 1991: Department of Chemistry, Faculty of Science, Hiroshima University, Kagamiyama, Higashi-Hiroshima
724, Japan 相似文献
102.
The utility of 4-(4-nitrophenyl)-1,2,4-triazoline-3,5-dione (NPTAD) as a derivatization reagent in the analysis of 25-hydroxyvitamin D3 [25(OH)D3] using liquid chromatography/electron capture atmospheric pressure chemical ionization-mass spectrometry (LC/ECAPCI-MS) was examined. The derivatives of 25(OH)D3 with NPTAD underwent electron capture in the APCI source in the negative-ion mode and provided 30-fold higher sensitivity compared to an intact compound. This derivatization-LC/ECAPCI-MS method was applied to a plasma 25-hydroxyvitamin D3 assay, and gave satisfactory results in sensitivity, specificity, measurable range and throughput of the analysis. 相似文献
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A cutting plane algorithm for solving bilinear programs 总被引:1,自引:0,他引:1
Hiroshi Konno 《Mathematical Programming》1976,11(1):14-27
This paper addresses itself to a special class of nonconvex quadratic program referred to as a bilinear program in the literature. We will propose here a cutting plane algorithm to solve this class of problems. The algorithm is along the lines of H. Tui and K. Ritter, but it differs in its exploitation of the special structure of the problem. Though the algorithm is not guaranteed at this stage of the research to converge to a global optimum, the preliminary results of numerical experiments are encouraging.This research was partially supported by the Office of Naval Research under Contract N-00014-67-A-0112-0011; and U.S. Atomic Energy Commission Contract AT(04-3)-326-PA # 18. 相似文献
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Hiroyuki Sasaki Akinori Tanaka Tazumi Nagasawa Shoji Suzuki Toshiro Nagase 《Solid State Communications》2004,129(2):91-95
We have carried out an angle-resolved photoemission study for CoSi2 nanofilms grown on the Si(111)-7×7 substrates. The surface of CoSi2(111) nanofilm changes from the bulk-truncated surface to the surface with additional Si-bilayer by annealing at higher temperature above 825 K. The angle-resolved photoemission spectra of the CoSi2 nanofilm annealed at 853 K show the spectral features originated from the surface resonance state on the CoSi2 surface terminated by Si-bilayer. From the detailed photoemission study, we discuss the surface electronic structure in CoSi2(111) nanofilms grown on Si(111) substrates. 相似文献
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