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排序方式: 共有325条查询结果,搜索用时 15 毫秒
321.
Ryoichi Nishimura Shunsuke Hayashi Masao Fukushima 《Journal of Global Optimization》2012,53(1):107-120
Consider the N-person non-cooperative game in which each player’s cost function and the opponents’ strategies are uncertain. For such an
incomplete information game, the new solution concept called a robust Nash equilibrium has attracted much attention over the
past several years. The robust Nash equilibrium results from each player’s decision-making based on the robust optimization
policy. In this paper, we focus on the robust Nash equilibrium problem in which each player’s cost function is quadratic,
and the uncertainty sets for the opponents’ strategies and the cost matrices are represented by means of Euclidean and Frobenius
norms, respectively. Then, we show that the robust Nash equilibrium problem can be reformulated as a semidefinite complementarity
problem (SDCP), by utilizing the semidefinite programming (SDP) reformulation technique in robust optimization. We also give
some numerical example to illustrate the behavior of robust Nash equilibria. 相似文献
322.
Ryoichi HAYAKAWA Teruyuki HAYAKAWA Kohsuke TAKEDA Hidenori ICHIJO 《Proceedings of the Japan Academy. Series B, Physical and biological sciences》2012,88(8):434-453
Apoptosis signal-regulating kinase 1 (ASK1) is a member of the mitogen-activated protein
kinase kinase kinase (MAP3K) family that activates downstream MAP kinases (MAPKs), c-Jun
N-terminal kinases (JNKs) and p38 MAPKs, in response to various stresses, such as reactive
oxygen species (ROS), endoplasmic reticulum (ER) stress, lipopolysaccharide, and calcium
overload. Activation of the JNK and p38 pathways induces stress responses such as cell death,
differentiation, and the production of inflammatory cytokines. A series of studies using
ASK1-deficient mice have indicated that ASK1 plays important roles in many stress-related
diseases, including cardiovascular and neurodegenerative diseases, suggesting that small
compounds that inhibit ASK1 activity could possibly be used for the amelioration of the
development and/or progression of these diseases. In this review, we provide an overview of the
pathophysiological roles of ASK1-dependent signaling pathways and discuss the mechanistic basis
for how these could serve as potential therapeutic targets. 相似文献
323.
When a Brownian object interacts with noninteracting gas particles under nonequilibrium conditions, energy dissipation associated with Brownian motion causes an additional force on the object as a "momentum transfer deficit." This principle is demonstrated first by a new nonequilibrium steady state model and then applied to several known models such as an adiabatic piston for which a simple explanation has been lacking. 相似文献
324.
Takashi Ikeda Dr. Keishiro Tahara Dr. Ryoichi Ishimatsu Prof. Toshikazu Ono Dr. Luxia Cui Momoka Maeda Prof. Yoshiki Ozawa Prof. Masaaki Abe 《Angewandte Chemie (International ed. in English)》2023,62(21):e202301109
This study reports an effective peripheral decoration of organic donor-acceptor diads with B(C6F5)3 for stabilizing electrogenerated radical ions. By employing a common p-type organic semiconductor benzothienobenzothiophene (BTBT) as the donor, tetracoordinate boron complexes showed improved solution electrochemiluminescence (ECL) intensity, reaching a 156-fold increase compared to that of the parent diad. The unprecedented Lewis-pairing-induced ECL enhancement is attributed to the multiple roles of B(C6F5)3: 1) redistributing frontier orbitals, 2) facilitating electrochemical excitation, and 3) restricting molecular motions. Furthermore, B(C6F5)3 converted the molecular arrangement of BTBT from conventional 2D herringbones into 1D π-stacks. This robust, highly ordered columnar nanostructure allowed red-shifting of the crystalline film ECL with electrochemical doping through the electronic coupling pathways of BTBT. Our approach will facilitate the development of elaborate metal-free ECL systems. 相似文献
325.
Jinhua Chen Shin Hasegawa Hitoshi Ohashi Yasunari Maekawa Masaru Yoshida Ryoichi Katakai Norio Tsubokawa 《Macromolecular rapid communications》2002,23(2):141-144
The impedance effect on the ion transport of lithium chloride through temperature‐ and pH‐sensitive gel membranes was investigated. Both conductance and loss tangent show a relatively high value at temperatures near the lower critical solution temperature (14°C), followed by an abrupt drop with a further rise in temperature. The Figure shows an example of changes in absolute complex conductance (Y ), real conductance (G ), and imaginary conductance (B) for a poly(acryloyl‐L ‐proline methyl ester) gel membrane. 相似文献