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31.
Itoi H Nishihara H Kogure T Kyotani T 《Journal of the American Chemical Society》2011,133(5):1165-1167
Zeolite-templated carbon is a promising candidate as an electrode material for constructing an electric double layer capacitor with both high-power and high-energy densities, due to its three-dimensionally arrayed and mutually connected 1.2-nm nanopores. This carbon exhibits both very high gravimetric (140-190 F g(-1)) and volumetric (75-83 F cm(-3)) capacitances in an organic electrolyte solution. Moreover, such a high capacitance can be well retained even at a very high current up to 20 A g(-1). This extraordinary high performance is attributed to the unique pore structure. 相似文献
32.
33.
We investigate the effect of incomplete information in a model where a start-up with a unique idea and technology pioneers a new market but will eventually be expelled from the market by a large firm’s subsequent entry. We evaluate the start-up’s loss due to incomplete information about the large firm’s behavior. We clarify conditions under which the start-up needs more information about the large firm. The proposed method of evaluating the loss due to incomplete information could also be applied to other real options models involving incomplete information. 相似文献
34.
H. Orihara T. Murakami S. Nishihara T. Nakagawa K. Maeda K. Miura H. Ohnuma 《Physics letters. [Part B]》1981,106(3):171-174
The reaction 56Fe(p, n)56Co leading to the analog of the ground state and the first excited 2+ state of 56Fe has been studied at Ep=20, 28, 32 and35MeV. The direct process dominates at higher energies, thus the direct extraction of the isovector deformation parameter β(1)2 is feasible. It is found that β(1)2 is about three times larger than β(0)2, the isoscalar deformation parameter. 相似文献
35.
Spiperone, a butyrophenone neuroleptic drug, has been used in binding studies of dopamine receptors. L?ngstr?m et al. developed N-11C-methyl spiperone, and, in cooperate with Wagner et al., made it possible to visualize the distribution of dopamine receptors in the human brain in vivo. In this paper, we independently developed another synthetic method of N-11C-methyl spiperone using the phase transfer catalyst in an anhydrous solvent. Separation of the product is feasible only by passing the reactant solution through a Millipore filter and injecting it onto high pressure liquid chromatography (HPLC). The time required for the synthesis and purification of N-11C-methyl spiperone from 11C-methyl iodide and spiperone was 20 min. Radiochemical yield exceeded 35% against 11C-methyl iodide without correcting decay of the radioactivity. 相似文献
36.
The Bi2Sr2CaCu2O8 system is viewed as an archetypal of superconductors modelled as Josephson coupled CuO2 bilayers. The isothermal and temperature dependent DC and AC magnetization measurements forH‖c in a single crystal of Bi2212 have been performed. Qualitative changes are observed to occur over a narrow range of temperature
values before reaching the superconducting-normal transition. The observed behaviour can be ascribed to the rapid variation
in the strength of the coupling between the superconducting CuO2 planes (i.e., bilayers in the case of Bi2212). Strongly coupled planes behave like a 3D superconductor, whereas weakly coupled
planes have a two component response attributable to 2D planes and interplanar couplings. We believe that this paper is a
plethora of new findings. Our observations imply that resistivity across the planes becomes zero earlier than that within
the planes. A new line (designated asH
2D(T)) above which the change in the electromagnetic response is dominated by quasi 2D-planes has been determined for the first
time. This paper also contains the first observation of Differential Diamagnetic Effect (DDE) in the In-phase AC susceptibility
data which signals the onset (atT
2D(H)) of dominance of response from 2D-planes. In addition to a host of interesting thermomagnetic history effects which are
a consequence of interplay between the diamagnetic responses from the two components, a comparison of irreversibility lines
(of the 3D state) determined by different methods on the same specimen of a HTSC is also being presented for the first time.
We have come across Paramagnetic Meissner Effect (PME), first recognized in ceramic samples of Bi2212, in the temperature
region of dimensional crossover in our single crystal sample, whichinter-alia confirms our labelling of the two component behaviour. A schematic phase diagram summarizing the various transformations
that can occur nearT
c in the electromagnetic response of an anisotropic layered system has been drawn. 相似文献
37.
Baudry Y Pasini D Nishihara M Sakai N Matile S 《Chemical communications (Cambridge, England)》2005,(38):4798-4800
Voltage-sensitive blockage by ADP, ATP and phytate (IP6) demonstrates that active-site contraction toward the middle of newly synthesized rigid-rod beta-barrels provides a general strategy to rationally create and modulate the voltage sensitivity (and to increase the efficiency) of molecular recognition by synthetic multifunctional pores. 相似文献
38.
Y. Ueda K. Kosuge S. Kachi H. Yasuoka H. Nishihara A. Heidemann 《Journal of Physics and Chemistry of Solids》1978,39(12):1281-1285
The local magnetic properties of the V sites in the nonstoichiometric V2O3+x (0 ? x <0.08) have been examined by nuclear magnetic resonance and inelastic spin-flip neutron scattering techniques. The samples with x = 0.01 and 0.02 show a paramagnetic metal (PM)-antiferromagnetic insulator (AFI) transition. In the AFI phase, two distinct 51V NMR signals with hyperfine fields Hn = 184.9±0.5 kOe and 71±1 kOe were observed at 1.8 K, which were assigned as due to V3+ and V3+ sites, respectively. On the other hand, the samples with x = 0.04 and 0.06 were metallic down to 1.4K, and showed a paramagnetic (PM)-antiferromagnetic (AFM) transition at about 10 K. In these samples, a 51V NMR signal with Hn = 58±2 k0e and one with 〈Hn〉 = 9kOe were observed at 1.8 K, which were assigned as due to V3+-like sites and the matrix V sites, respectively. These results are entirely consistent with those obtained from the neutron experiment. We propose that in the metallic phase (0.04 ? x < 0.08) the minority V4+-like sites are magnetically localized in the delocalized V matrix and may be responsible for the antiferromagnetic long range order below 10 K. 相似文献
39.
A semiclassical approximation for the transition matrix for transfer reactions between heavy ions is developed from the distorted-wave Born approximation by means of the three-dimensional WKB approximation. It is designed to be applicable to massive transfer without adopting various assumptions and approximations of previous semiclassical approaches which are reasonable only for few-nucleon transfer. The final expression obtained is of a simple closed form similar to that of the Brink model. It gives a way of seeing the validity of the idea of Brink in massive transfer. Numerical study of illustrative examples indicates promising applicability of the present method to massive transfer. 相似文献
40.
Koji Inui Tomokazu Urakawa Koya Yamashiro Naofumi Otsuru Makoto Nishihara Yasuyuki Takeshima Sumru Keceli Ryusuke Kakigi 《BMC neuroscience》2010,11(1):80