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121.
Toru Koizumi Yoshiko Kobayashi Eiichi Yoshii Masayuki Takamoto Kazuhide Kamiya Hiroyuki Asakawa 《Tetrahedron letters》1980,21(41):3995-3996
The absolute configuration of (+)-(R)p methyl phenyl phosphoramidate of ethyl L-phenylalaninate was determined by X ray crystallography. 相似文献
122.
Kazuhide Hirohata 《Journal of Graph Theory》1998,29(3):177-184
For a graph G and an integer k ≥ 1, let ςk(G) = dG(vi): {v1, …, vk} is an independent set of vertices in G}. Enomoto proved the following theorem. Let s ≥ 1 and let G be a (s + 2)-connected graph. Then G has a cycle of length ≥ min{|V(G)|, ς2(G) − s} passing through any path of length s. We generalize this result as follows. Let k ≥ 3 and s ≥ 1 and let G be a (k + s − 1)-connected graph. Then G has a cycle of length ≥ min{|V(G)|, − s} passing through any path of length s. © 1998 John Wiley & Sons, Inc. J. Graph Theory 29: 177–184, 1998 相似文献
123.
Kazuhide Ichikawa Ayumu Wagatsuma Pawe? Szarek Chenggang Zhou Hansong Cheng Akitomo Tachibana 《Theoretical chemistry accounts》2011,130(2-3):531-542
We study the chemical bonds of small palladium clusters Pd n (n?=?2?9) saturated by hydrogen atoms using electronic stress tensor. Our calculation includes bond orders which are recently proposed based on the stress tensor. It is shown that our bond orders can classify the different types of chemical bonds in those clusters. In particular, we discuss Pd?CH bonds associated with the H atoms with high coordination numbers and the difference of H?CH bonds in the different Pd clusters from viewpoint of the electronic stress tensor. The notion of ??pseudo-spindle structure?? is proposed as the region between two atoms where the largest eigenvalue of the electronic stress tensor is negative and corresponding eigenvectors forming a pattern which connects them. 相似文献
124.
Sousuke Ohsawa Kazuhide Morino Atsushi Sudo Takeshi Endo 《Journal of polymer science. Part A, Polymer chemistry》2012,50(22):4666-4673
A series of bicyclic bis(γ‐butyrolactone)s (BBL) bearing sulfide moiety 2 were readily synthesized from a precursor BBL bearing isopropenyl group 1. This efficient and versatile synthesis of 2 was achieved by a highly reliable radical addition reaction of thiols to the C‐C double bond in the isopropenyl group 2 underwent anionic copolymerization with glycidyl phenyl ether in a 1:1 alternating manner to give a series of the corresponding polyester 3, of which side chains inherited the sulfide group from 2. The glass transition temperatures (Tg) of 3 showed clear dependence on the flexibility of the sulfide side chains. The scope of this copolymerization system was further expanded by synthesizing a bifunctional BBL 4 from 1 with using hexanedithiol and performing its copolymerization with bisphenol A diglycidyl ether 5. The copolymerization gave the corresponding networked polymer in high yield. During the copolymerization, the volume expanding nature of the double ring‐opening reaction of 4 contributed to the efficient compensation of the intrinsic volume shrinkage of the ring‐opening of epoxide to achieve a shrinkage‐free curing system. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012 相似文献
125.
Minoru Tanabe Hiroaki Nishimura Naofumi Ohnishi Kevin B. Fournier Shinsuke Fujioka Atsushi Iwamae Stephanie B. Hansen Keiji Nagai Frederic Girard Michel Primout Bruno Villette Didier Brebion Kunioki Mima 《High Energy Density Physics》2010,6(1):89-94
The propagation of a laser-driven heat-wave into a Ti-doped aerogel target was investigated. The temporal evolution of the electron temperature was derived by means of Ti K-shell X-ray spectroscopy, and compared with two-dimensional radiation hydrodynamic simulations. Reasonable agreement was obtained in the early stage of the heat-wave propagation. In the later phase, laser absorption, the propagation of the heat-wave, and hydrodynamic motion interact in a complex manner, and the plasma is mostly re-heated by collision and stagnation at the target central axis. 相似文献
126.
127.
Katsuhiro Maeda Kazuhide Morino Eiji Yashima 《Journal of polymer science. Part A, Polymer chemistry》2003,41(22):3625-3631
Cis–transoidal poly[(4-carboxyphenyl)acetylene] (poly- 1 ) complexed with optically active amines and amino alcohols showed an induced circular dichroism (ICD) in the ultraviolet–visible region because of a predominantly one-handed helix formation in water and in dimethyl sulfoxide (DMSO). The Cotton effect signs of the poly- 1 /chiral amino alcohol complexes were inverted in the presence of water, whereas the ICD pattern of the poly- 1 /chiral amine complexes showed no change, regardless of the water content. These results demonstrated that the helix sense of poly- 1 induced by optically active amino alcohols through noncovalent acid–base interactions could be switched by changes in the solvent ratio in the DMSO–water mixtures. © 2003 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 41: 3625–3631, 2003 相似文献
128.
Improvement in reliability of probabilistic test of significant differences in GeneChip experiments.
Kyoko Toda Seiichi Ishida Kotoko Nakata Rieko Matsuda Yukari Shigemoto-Mogami Shogo Ozawa Jun-ichi Sawada Yasuo Ohno Kazuhide Inoue Koichi Shudo Yuzuru Hayashi 《Analytical sciences》2004,20(4):731-733
A probabilistic test (FUMI theory) for GeneChip experiments has been proposed for selecting the genes which show significant differences in the gene expression levels between a single pair of treatment and control. This paper describes that the reliability of the judgment by the FUMI theory can be enhanced, when the selected genes are referred to biomolecular-functional networks of a commercial database. The genes judged as being differently expressed are grouped into a cluster in the biomolecular networks. It is also demonstrated that false positive genes have a trend in the networks to be isolated from each other, and also away from the clustered genes, since the false positive genes are randomly selected. 相似文献
129.
Kazuhide Matsuda 《The Ramanujan Journal》2017,44(1):37-62
In this work, we use Jacobi’s derivative formula to obtain analogues to theta constants with rational characteristics. Furthermore, we show that the analogues yield many product-series identities by only using the elementary fact that a holomorphic elliptic function is a constant. 相似文献
130.