Skip to main content

12 Result(s)

within M. Ogihara Remove this filter

and

  1. No Access

    Article

    Synchronous Boolean Finite Dynamical Systems on Directed Graphs over XOR Functions

    In this paper, we investigate the complexity of a number of computational problems defined on a synchronous boolean finite dynamical system, where update functions are chosen from a template set of exclusive-o...

    M. Ogihara, K. Uchizawa in Theory of Computing Systems (2023)

  2. No Access

    Article

    Parallel Data Mining for Association Rules on Shared-Memory Systems

    In this paper we present a new parallel algorithm for data mining of association rules on shared-memory multiprocessors. We study the degree of parallelism, synchronization, and data locality issues, and pres...

    S. Parthasarathy, M. J. Zaki, M. Ogihara, W. Li in Knowledge and Information Systems (2001)

  3. No Access

    Article

    The complexity of matrix rank and feasible systems of linear equations

    We characterize the complexity of some natural and important problems in linear algebra. In particular, we identify natural complexity classes for which the problems of (a) determining if a system of linear e...

    E. Allender, R. Beals, M. Ogihara in computational complexity (1999)

  4. No Access

    Article

    Simulating Boolean Circuits on a DNA Computer

    We demonstrate that DNA computers can simulate Boolean circuits with a small overhead. Boolean circuits embody the notion of massively parallel signal processing and are frequently encountered in many paralle...

    M. Ogihara, A. Ray in Algorithmica (1999)

  5. No Access

    Chapter and Conference Paper

    Initial Crystal Growth Stage of BRBO Thin Film

    Thin film growth of BaBiO3 (BBO) on SrTiO3(100) and SrTi03(l10) substrates by molecular beam epitaxy was studied precisely. We prepared the BBO thin film of ~500Å with surface roughness of ~30Å. Surface roughness...

    T. Makita, M. Ogihara, F. Toda, H. Abe in Advances in Superconductivity V (1993)

  6. No Access

    Chapter and Conference Paper

    Electric Characteristics of High Tc Superconductor/Semiconductor Junction

    We formed BiSrCaCuO and YBaCuO/Nb doped SrTiO3 (STO(Nb)) junctions. We measured current — voltage (I-V) characteristics and capacitance — voltage (C-V) characteristics of both junctions by varying temperature fro...

    R. Kawasaki, F. Toda, K. Hashimoto, M. Ogihara… in Advances in Superconductivity IV (1992)

  7. No Access

    Chapter and Conference Paper

    Formation of (Ba,Rb)BiO3 Superconducting Thin Films by Molecular Beam Epitaxy

    (Ba,Rb)Bi03 (BRBO) superconducting thin films were prepared on MgO(100) substrates by molecular beam epitaxy using distilled ozone at the substrate temperature of∼370°C. The BRBO superconducting thin film of ∼...

    M. Ogihara, F. Toda, R. Kawasaki, T. Yamada, H. Abe in Advances in Superconductivity IV (1992)

  8. No Access

    Article

    The effect of angular momentum coupling on the angular distribution of fission fragments

    We examine what information can be obtained from fission angular distributions through precise measurements and an analysis in terms of the simple statistical model of Ericson. We report on the systematics of ...

    M. Ogihara, H. Fujiwara, S. C. Jeong, W. Galster… in Zeitschrift für Physik A Atomic Nuclei (1990)

  9. No Access

    Article

    Energy dam** feature in light heavy-ion reactions

    The energy damped reaction products from37Cl+12C,27Al,48Ti and16O+48Ti were measured over a wide range of angles (typically 18°<θ lab<70°), incident energies (160 <E lab(37Cl)<200 MeV,E lab(16O)=118 MeV) and char...

    W. Yokota, T. Nakagawa, M. Ogihara… in Zeitschrift für Physik A Atomic Nuclei (1989)

  10. No Access

    Article

    Mass distribution of fission fragments in the19F+197Au reaction

    Mass distributions of fission fragments have been measured for the reaction of19F on197Au as a function of scattering angle. The mean fragment mass is dependent on the scattering angle, the asymmetry increasing w...

    H. Ikezoe, N. Shikazono, Y. Tomita, Y. Sugiyama… in Zeitschrift für Physik A Atomic Nuclei (1988)

  11. No Access

    Chapter

    Effect of Wave-Current Interaction on the Determination of Volume Scattering Function of Microwave at Sea Surface

    The microwave scatterometer onboard SEASAT satellite was used to determine the wind field over the world’s oceans. The principle of measurement relies on the sensitivity of microwave radar backscatter to the c...

    Y. Sugimori, K. Akagi, M. Ogihara in The Ocean Surface (1985)

  12. No Access

    Article

    Studies on ldh isozyme in normal and acute hepatitis

    I. Ohira, M. Ogihara, S. Imagawa, T. Matsuoka, A. Teraoka in Gastroenterologia Japonica (1969)