排序方式: 共有59条查询结果,搜索用时 31 毫秒
41.
Masatoshi Ukai Akinari Yokoya Yusuke Nonaka Kentaro Fujii Yuji Saitoh 《Radiation Physics and Chemistry》2009,78(12):1202-1206
A new spectroscopy to identify the hydration structure playing important role in liquid-phase radiation damage is in progress using a laminar liquid water jet sample in vacuum in combination with soft X-ray synchrotron radiation. We present the total and partial electron yields for liquid water using a photoelectron spectroscopy. Partial electron yields for the K-11b11b1 Auger transition are obtained for the first time by measuring the electrostatically dispersed electron kinetic energy spectra as a function of photon energy of synchrotron radiation. 相似文献
42.
A general method of constructing families of cyclic polynomials over with more than one parameter will be discussed, which may be called a geometric generalization of the Gaussian period relations. Using this, we obtain explicit multi-parametric families of cyclic polynomials over of degree . We also give a simple family of cyclic polynomials with one parameter in each case, by specializing our parameters.
43.
Yuliati L Hamajima T Hattori T Yoshida H 《Chemical communications (Cambridge, England)》2005,(38):4824-4826
Highly dispersed cerium oxide species on silica and alumina, which mainly exist as Ce(III) species, promote non-oxidative direct methane coupling photocatalytically around room temperature, while Ce(IV) species as CeO2 particles do not behave as a catalyst for this reaction. 相似文献
44.
P. P. Povinec M. K. Pham J. Busto C. Cerna D. Degering Y. Hamajima K. Holý M. Hult M. Ješkovský M. Köhler A. Kováčik M. Laubenstein P. Loaiza F. Mamedov Ch. Marquet J. Mott M. Műllerová F. Perrot F. Piquemal J.-L. Reyss R. Saakyan H. Simgen B. Soulé J. Staníček I. Sýkora I. Štekl 《Journal of Radioanalytical and Nuclear Chemistry》2016,307(1):619-626
45.
Iwamatsu Si S Vijayalakshmi PS Hamajima M Suresh CH Koga N Suzuki T Murata S 《Organic letters》2002,4(7):1217-1220
[reaction: see text] Photorearrangement of tetraalkoxycarbonyl-substituted cyclohexadiene derivatives of C(60) yields not only well-known bis(fulleroid) but also bis(methano)fullerene. Existence of a labile and structurally new intermediate is observed in the reaction mixture. The discovery of the compound suggests the existence of another possible pathway giving those two products other than the widely accepted [4 + 4]/[2 + 2 + 2] mechanism. 相似文献
46.
Chitrakar R Makita Y Sonoda A Hirotsu T 《Journal of colloid and interface science》2011,354(2):798-803
This study presents a rare use of layered double hydroxides of Fe(II) and Al(III) (Fe-Al LDH), as reported for the first time for bromate removal from aqueous solutions. The Fe-Al LDH samples were prepared with Fe/Al molar ratios of 1-4 using a co-precipitation method at pH 7, with subsequent hydrothermal treatment at 120°C. The Fe-Al LDH (molar ratio of Fe/Al=1, 2) with a layered structure exhibited nearly complete removal of bromate from initial concentration of 100μmol/dm(3) at a wide pH range of 4.0-10.5 over a 2h reaction period; the residual bromate concentration in the solution was lower than the detection limit of 0.07μmol/dm(3) (9μg-BrO(3)(-)/dm(3)). During the reaction period, bromide was released into the solution via a reduction process. Reactivity of Fe-Al LDH with a Fe/Al molar ratio of 2 did not decrease the bromate reduction efficiency during 30days. 相似文献
47.
T Suzuki H Inagaki H Hamajima H Uesaka K Hori T Ikami 《Chemical & pharmaceutical bulletin》1999,47(6):880-883
Three metabolites of N-[2-(1-azabicyclo[3.3.0]octan-5-yl)ethyl]-2-nitroaniline fumarate (SK-946), a novel central muscarinic cholinergic receptor agonist, were prepared to confirm their proposed structures, and tested for muscarinic receptor affinity in vitro. 相似文献
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49.
Kumamoto Yuichiro Aoyama Michio Hamajima Yasunori Nagai Hisao Yamagata Takeyasu Kawai Yoshimi Oka Eitarou Yamaguchi Atsushi Imai Keiri Murata Akihiko 《Journal of Radioanalytical and Nuclear Chemistry》2017,311(2):1209-1217
Journal of Radioanalytical and Nuclear Chemistry - In 2014, we measured activity concentration of radiocesium in the western North Pacific Ocean. In the north of Kuroshio Front high activity... 相似文献
50.
A -automorphism of the rational function field is called purely monomial if sends every variable to a monic Laurent monomial in the variables . Let be a finite subgroup of purely monomial -automorphisms of . The rationality problem of the -action is the problem of whether the -fixed field is -rational, i.e., purely transcendental over , or not. In 1994, M. Hajja and M. Kang gave a positive answer for the rationality problem of the three-dimensional purely monomial group actions except one case. We show that the remaining case is also affirmative.