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141.
Masahide Yamamoto Keigo Goshiki Toshiji Kanaya Yasunori Nishijima 《Chemical physics letters》1978,56(2):333-335
Intramolecular excimer emission of a series of di(1-pyrenylmethyleneoxycarbonyl)alkanes (n = 0–22) has been studied under photostationary conditions. The intramolecular excimer formation rate constant decreases monotonously with increasing number of methylene units of the chains in the low temperature region. The temperature dependence of the rate constant for each sample was studied to give an apparent activation energy of ca. 5 kcal/mol. 相似文献
142.
143.
Trace amounts of Sc(III) and Y(III) can react with [PW11O39]7− to form the ternary Keggin-type complexes: [P(ScIIIW11)O40]6− and [P(YIIIW11)O40]6− having high molar absorptivities in the UV region. Since the rate of the complex-formation was very rapid and the kinetically stable ternary anions migrated in the capillary with different electrophoretic mobilities, the complex-formation reaction was applied to the simultaneous CE determination of Sc(III) and Y(III) with direct UV detection at 250 nm. For both Sc(III) and Y(III), the pre-column method provided linear calibration curves in the range of 2 × 10−7 to 1 × 10−5 M; the respective detection limits were 1 × 10−7 M (the signal-to-noise ratio = 3). The proposed method was successfully applied to the determination of Sc(III) and Y(III) in river water. 相似文献
144.
An efficient solid‐phase synthetic method for 2,3,4,5‐Tetrahydro‐1,4‐benzodiazepin‐2,5‐diones, having amine derivatives on the benzene ring, was developed. This method has been successfully applied to the synthesis of several spatially separated drug‐like and information‐rich small‐molecule libraries composed of 400 compounds using ACT‐496 automatic synthesizer and the IRORI radio frequency‐encoded split‐mix synthesis technology. 相似文献
145.
Toshiaki Tatsukawa Akitaka Doi Masato Teranaka Hitoshi Takashima Fuminori Goda Seishiro Watanabe Toshitaka Idehara Tomohiro Kanemaki Tunetoyo Namba 《International Journal of Infrared and Millimeter Waves》2005,26(4):591-606
Microwave invasion into living bodies through a millimeter wave catheter irradiation is described. As radiation sources for millimeter wave irradiation tests both Impatt oscillator (IO) and a Gunn oscillator were used. Irradiated samples are cow livers and living rats. A newly designed wave-guide vent antenna (WVA) with an anti-reflecting layer (ARL) is used as a launcher for the irradiation and the reflectance measurements. The correlation between the denaturation of the
tissue and the reflectance from the WVA is studied in detail. 相似文献
146.
K. Kanaya 《Nuclear Physics A》2001,680(1-4):196-203
147.
148.
Nakamura K Shikata T Takahashi N Kanaya T 《Journal of the American Chemical Society》2005,127(13):4570-4571
SANS measurements revealed that polyelectrolytes, sodium salt of partially sulfonated polystyrenes, incorporated into enormously long hybrid threadlike micelles formed in aqueous solution with a cationic surfactant, cetyltrimethylammonium bromide, have a highly extended conformation with high confinement along the micelles with a radius of 2.3 nm. 相似文献
149.
Koji Nishida Kohei Kiriyama Toshiji Kanaya Keisuke Kaji Tsuneo Okubo 《Journal of Polymer Science.Polymer Physics》2004,42(6):1068-1074
The origin of the variety of characteristics of the reduced viscosity of aqueous suspensions of charged spherical particles has been an unsolved problem. To solve the problem, the reduced viscosity due to interparticle electrostatic interactions between charged spherical particles are calculated as a function of particle concentration with scanning various parameters, such as diameter of particle, number of charges per particle, and added‐salt concentration. The result successfully reproduced the variety of characteristics. Of all the scanned parameters, the diameter of the particle has a significant role to display the variety of characteristics when other parameters are fixed. When the diameter is very small (~0 Å), the calculated reduced viscosity of aqueous suspensions of charged spherical particles increases with decreasing particle concentration and it shows a maximum. This behavior is very similar to the reduced viscosity of linear chain polyelectrolyte solutions. Whereas, when the diameter is large (>2000 Å), the calculated reduced viscosity decreases with decreasing particle concentration and it does not show a maximum. When the diameter is <1000 Å, the calculated reduced viscosity shows both the maximum and minimum. © 2004 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 42: 1068–1074, 2004 相似文献
150.
Misaizu F Tsuruta M Tsunoyama H Furuya A Ohno K Lintuluoto M 《The Journal of chemical physics》2005,123(16):161101
Methanol adsorption sites on NanI+n-1 ions were investigated. Photoexcitation to charge-transfer states of NanI+n-1 (methanol) predominantly produces two fragment ions: Nan-1I+n-2 (methanol) (neutral NaI loss) and Nan-1I+n-2(neutral NaI and methanol loss), without forming NanI+n-1 (methanol loss). The relative intensities of these fragments are correlated with the geometries and binding energies. 相似文献