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971.
Yuichi Yamamoto 《International Journal of Game Theory》2010,39(3):431-443
This paper presents an example where the set of subgame-perfect equilibrium payoffs of the infinitely repeated game without
public randomization is not convex, no matter how large the discount factor is. Also, the set of pure-strategy equilibrium
payoffs is not monotonic with respect to the discount factor in this example. These results are in sharp contrast to the fact
that the equilibrium payoff set is convex and monotonic if public randomization is available. 相似文献
972.
Konstantin V. Purtov Valentin N. Petushkov Mikhail S. Baranov Konstantin S. Mineev Natalja S. Rodionova Zinaida M. Kaskova Aleksandra S. Tsarkova Alexei I. Petunin Vladimir S. Bondar Emma K. Rodicheva Svetlana E. Medvedeva Yuichi Oba Yumiko Oba Alexander S. Arseniev Sergey Lukyanov Josef I. Gitelson Ilia V. Yampolsky 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2015,127(28):8113-8113
973.
974.
Yuichi Shimoikeda Hiroaki Utsumi Koji Saito Tadashi Shimizu Toshihito Nakai 《Analytical sciences》2007,23(8):1007-1009
A method using fullerene for adjusting the NMR spectral resolution for multiple quantum magic angle spinning (MQMAS) experiments is proposed. To observe its (13)C MAS signal, it is not necessary to apply (1)H decoupling, unavailable with single-resonance MQMAS probes. Although (13)C T(1) of fullerene is rather long, a recycle time of 5 s in shimming yields its signal with sufficiently high sensitivity if setting the appropriate Ernst angles corresponding to magnetic fields. It is demonstrated that so-adjusted high resolution is reflected in the (87)Rb MQMAS spectra of RbNO(3). 相似文献
975.
976.
Yuta Yokoyama Tsuyoshi Hori Ryuta Okada Daiki Harimoto Chihiro Sugawara Yoichi Yamada Masahiro Sasaki 《Surface science》2009,603(18):2845-2848
Effects of the translational energy of incident oxygen molecules on surface processes from dissociative adsorption to subsequent associative desorption on Pt(1 1 1) have been investigated by means of supersonic molecular beam scattering. The reaction rate of associative desorption increases with the incident translational energy. The enhanced associative desorption can be attributed to nonthermal diffusion of dissociated oxygen, promoted by the translational energy of incoming molecules. 相似文献
977.
T. Yamada S. A. E. Boyer T. Iyoda H. Yoshida J. -P. E. Grolier 《Journal of Thermal Analysis and Calorimetry》2007,89(1):9-12
The effects of nitrogen (N2) pressure on amphiphilic di-block copolymer, PEO114-b-PMA(Az)40, were investigated by scanning transitiometry. The isotropic transition temperature increased with the increase of pressure
above 20 MPa. The hydrostatic pressure effects evaluated with the Clapeyron equation were smaller than the value obtained
by mercury as a pressurizing medium because the amount of absorbed gas decreases the volume change at the isotropic transition. 相似文献
978.
In order to obtain the precise Pu isotope composition of Irish Sea water reference material issued by the International Atomic Energy Agency (IAEA-381), we analyzed the activities of (239)Pu, (240)Pu and the atom ratio of (240)Pu/(239)Pu by a highly sensitive isotope dilution SF-ICP-MS method combined with two-stage chromatographic separation and purification. With a mean chemical yield of 65% for (242)Pu tracer, the experimentally established values for (239)Pu, (240)Pu and (239+240)Pu activities are in good agreement with the certified ones. For the (240)Pu/(239)Pu atom ratio, we obtain a value of 0.2315 +/- 0.0008 with a high precision (RSD, 0.35%), which is much more precise than the information value of 0.22 +/- 0.03 (RSD, 13.6%) provided by the IAEA certification report. The precise determination of Pu isotopes in this seawater reference material will be useful for the validation of analytical methods for the study of radionuclides in the marine environment. 相似文献
979.
Using composition-spread technique, we have grown metastable Mg1−xCaxO solid solution films on ZnO layers by pulsed laser deposition. All the films exhibited (1 1 1) oriented cubic phase. Despite a large miscibility gap, no phase separation took place at growth temperatures up to 700 °C, whereas an optimal growth temperature was found at 400 °C in terms of the crystallinity. The composition-spread films were characterized by X-ray diffraction mapping technique. Both lattice parameters and diffraction intensity increased with increasing the CaO composition. The present isovalent heterointerfaces realized the perfect lattice-matching by properly adjusting the CaO composition, leading to particular interest for ZnO based field effect transistors. 相似文献
980.
The optical properties of GaAs/AlGaAs thin films with photonic crystals were investigated by measuring their photoluminescence spectra. The spectral intensities, lifetimes, and quantum efficiencies decreased greatly compared with those in blank material without photonic crystals. The quantum efficiencies in the material were also calculated from spectral intensities and lifetimes and the quantum efficiencies calculated from those two methods agreed with each other to some extent. 相似文献