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51.
We prove the equivalence of the three different definitions of the viscosity solution for the integro-differential equation with the Lévy operator. The two of the definitions are known in the preceding works of the author and the others, and the last one is new. A construction of a sequence of the approximating test functions to the subsolution (or the supersolution) is indispensable for the proof, and it is done explicitly in the paper. 相似文献
52.
In the presence of a Ni/phosphine ligand catalyst, dimethylzinc, alkyne, butadiene, aldehyde, and primary amine were successively combined via dimerization of butadiene to provide (3E,7E,10Z)-dodecatrienylamine in good yields with excellent regio and stereoselectivities. 相似文献
53.
54.
A secretoglobin 3A2 type C (98–139) peptide was synthesized by native chemical ligation between 115Ile and 116Cys residues using Dawson’s linker. The peptide-N-acyl-benzimidazolinone-glycine amide, a C-terminal thioesters precursor, was provided from 3-amino-4-(methylamino)benzoic acid. In addition, an N-terminal cysteine fragment, the (116–139) peptide, was prepared by ordinary Fmoc-solid phase peptide synthesis. Native chemical ligation of the (98–115) fragment with the Dawson’s linker and the (116–139) peptide smoothly proceeded to give SCGB3A2 type C (98–139) peptide. 相似文献
55.
Mariko Ohara 《manuscripta mathematica》2014,143(3-4):379-388
We present some rational elliptic surfaces over a certain field such that certain open subschemes do not satisfy the surjectivity of the boundary map on K 2 arising from the localization sequence. We consider two cases that the base field is transcendental over its prime subfield and that the base field is characteristic zero. 相似文献
56.
Yabashi M Hastings JB Zolotorev MS Mimura H Yumoto H Matsuyama S Yamauchi K Ishikawa T 《Physical review letters》2006,97(8):084802
An experimental scheme to realize single-shot spectrometry for the diagnostics of x-ray free-electron lasers (XFELs) is presented. The combination of an ultraprecisely figured mirror and a perfect crystal form a simple, high-precision spectrometer that can cover an energy range from a few eV to a hundred eV with high resolution. The application of the spectrometer to determine XFEL pulse widths was investigated theoretically and experimentally. It has been shown that the present system can determine pulse widths from sub-fs to ps in a single shot even for spontaneous radiation. The system can be easily extended to even shorter pulses. 相似文献
57.
A. A. Ushakov N. Nemoto N. Kanda K. Konishi P. A. Chizhov N. A. Panov D. E. Shipilo V. V. Bukin M. Kuwata-Gonokami J. Yumoto O. G. Kosareva S. V. Garnov A. B. Savel’ev 《JETP Letters》2017,105(11):706-709
A change in the quasistatic magnetic susceptibility in thin plates of iron borate (FeBO3), which is a weak ferromagnet, has been revealed at adsorption of water molecules. The measurements have been performed at room temperature with the use of the magneto-optical Faraday effect. The change of the susceptibility in saturated water vapors is about 30%. The observed effect is reversible. The time of establishing the susceptibility after the introduction of water vapors is 1.5 min, which is twice as large as the time of establishing the susceptibility after the evacuation. The effect is explained by the appearance of uniaxial surface magnetic anisotropy in the basal plane because of the adsorption of water molecules. 相似文献
58.
Miki Yumoto Takahiro Tamura Taketomo Sato Hideki Hasegawa 《Superlattices and Microstructures》2003,34(3-6):485
In view of applications to hexagonal binary decision diagram (BDD) LSIs, a first attempt is made to form quantum BDD node switches on selectively grown (SG) embedded quantum wires (QWRs) by molecular beam epitaxy (MBE). SG branch switches controlled by a Schottky wrap gate (WPG) were successfully fabricated by MBE growth and subsequent device processing. Gate control characteristics were studied by gate-dependent Shubnikov–de-Haas measurements, and the behavior was found to be similar to that of devices fabricated on wires by etching. The switch exhibited clear conductance quantization at low temperature, and temperature dependence of the voltage slope of conductance jump was clarified. A Y-branch BDD node device using two SG branch switches was successfully fabricated, and realized clear path switching characteristics. 相似文献
59.
Satomi Onoue Baosheng Liu Yoshitaka Nemoto Mariko Hirose Takehiko Yajima 《Analytical sciences》2006,22(12):1531-1535
Thymopentin (TP5) is a synthetic pentapeptide fragment, which corresponds to position 32 - 36 of thymic polypeptide thymopoietin. Thymopoietin and TP5 display a variety of biological functions, including phenotypic differentiation of T cells and the regulation of immune systems. Previous chemical modification experiments suggested that there was an absolute requirement for N-terminal amino acids to maintain the biological activity of TP5. On the basis of this structure-activity relationship, we designed and synthesized the C-terminally 5-carboxyfluorescein-coupled TP5 (TP5-FAM) as a fluorescent probe for thymopoietin receptor. TP5-FAM could bind to the membrane of human lymphoid cell lines, MOLT-4 cells, in which the thymopoietin receptor is expressed. The binding is specific and saturable (K(d) = 33 microM). TP5 and human splenopentin are nearly equipotent inhibitors of TP5-FAM binding to the thymopoietin receptor, but porcine secretin did not show any significant inhibition of TP5-FAM binding to MOLT-4 cells. Thus, TP5-FAM is suggested to be a potent and biologically active ligand that would be useful for studying the binding and functional characteristics of the human thymopoietin receptor. 相似文献
60.
This paper describes the history and scheme of reference materials and standard solutions for titrimetry in Japan. Titrimetry
is one of the most fundamental and precise methods for determination of a constituent, based on the effective purity of reference
materials in stoichiometric analysis. It has wide-ranging applications based on titrimetric reactions such as neutralization,
redox, chelatometric, and precipitation titration processes, which are used in various analytical fields all over the world.
Japanese Industrial Standards (JIS) have played an important role in establishing a stable supply of reference materials for
titrimetry since the 1950s. There are several reports of preparations and their determination, including coulometric studies,
in order to establish highly reliable reference materials. This paper briefly reviews the schemes and studies of standardization
through the provision of reference materials and standard solutions based on JIS, and several applications in other standards.
Presented at Berm-11, October 2007, Tsukuba, Japan. 相似文献