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  1. No Access

    Article

    Improvement in the Crystallographic Phase Content and Superconducting Properties of Mechanically Alloyed MgB2

    In this paper, the results of the superconductivity evaluation of MgB2 intermetallic-based superconducting materials prepared through mechanical alloying are reported. The formation of the MgB2 intermetallic phas...

    S. D. Yudanto, Y. P. Dewi, A. Imaduddin… in Journal of Superconductivity and Novel Mag… (2019)

  2. No Access

    Article

    Possibility of the Higher Critical Temperature on MgB2 Superconductor Synthesized by Powder-In-Sealed-Tube Method

    MgB2 is a metal compound superconductor which has critical temperature value ~ 39 K. The critical temperature of MgB2 superconducting wire is higher than Nb-based superconductor, NbTi and Nb3Sn. It is a promising...

    A. Imaduddin, S. D. Yudanto, M. E. H. Rasyadi… in Journal of Low Temperature Physics (2019)

  3. No Access

    Article

    Polarized XAFS Analyses for MgB2 Thin Films

    The local structure of 10, 20, and 30-nm MgB2 thin films prepared by molecular beam epitaxy (MBE) is analyzed by polarized X-ray absorption fine structure (XAFS) of Mg K-edge, which is a powerful tool for structu...

    T. Miyanaga, R. Matsumura, M. Seo, K. Takeda… in Journal of Superconductivity and Novel Mag… (2017)

  4. No Access

    Article

    Lack of changes in carotid artery compliance with systemic nitric oxide synthase inhibition

    Proximal large elastic arteries (ascending aorta and carotid artery) have an important role in buffering the pulsatile pressure generated from the left ventricle, which forwards continuous peripheral blood flo...

    J Sugawara, Y Saito, S Maeda, M Yoshizawa, H Komine… in Journal of Human Hypertension (2014)

  5. No Access

    Article

    Endoscopic submucosal dissection using sodium hyaluronate, a new technique for en bloc resection of a large superficial tumor in the colon

    En bloc resection of superficial tumors in the colon is challenging but beneficial for the precise diagnosis and treatment. We have been using a novel technique of endoscopic submucosal dissection with a visco...

    H. Kita, H. Yamamoto, T. Miyata, K. Sunada, M. Iwamoto, T. Yano… in Inflammopharmacology (2007)

  6. No Access

    Article

    Ultrafast optical responses of three-level systems in β-carotene: Resonance to a high-lying n 1 A g − excited state

    Ultrafast optical phenomena in all-trans-β-carotene have been investigated by femtosecond absorption and fluorescence spectroscopy. Following a resonant pump pulse, both fluorescence and absorbance changes have a...

    M. Yoshizawa, D. Kosumi, M. Komukai, H. Hashimoto in Laser Physics (2006)

  7. No Access

    Article

    Dysfunctional baroreflex regulation of sympathetic nerve activity in remitted patients with panic disorder

    Many researchers have studied the abnormalities of autonomic nervous system (ANS) such as decreased heart rate variability, which is a risk factor for sudden cardiac death, in patients with panic disorder (PD)...

    Toshiki Shioiri M.D., Ph.D.… in European Archives of Psychiatry and Clinic… (2005)

  8. No Access

    Article

    On locally finite k-homogeneous permutation groups

    We prove that if G is a locally finite k-homogeneous permutation group with \( k \geqq 9 \) on an infinite set ...

    M. Yoshizawa in Archiv der Mathematik (2002)

  9. No Access

    Article

    Correlation dimension analysis of the artificial circulation

    Artificial circulation has been analyzed by decomposing it into parts. However, the sum of the decomposed parts is not equal to the whole system, especially in nonlinear dynamic systems such as biological sys...

    T. Yambe, S. Nanka, S. Naganuma, S. Kobayashi, S. Nitta… in Journal of Artificial Organs (2002)

  10. No Access

    Article

    Nonstationary Vibrations of a String with Time-Varying Length and a Mass-Spring Attached at the Lower End

    The purpose of this paper is to study the nonstationary vibration of a string with time-varying length and a mass-spring system attached at the lower end. The string is hung vertically and excited sinusoidally...

    Y. Terumichi, M. Ohtsuka, M. Yoshizawa, Y. Fukawa, Y. Tsujioka in Nonlinear Dynamics (1997)

  11. No Access

    Article

    Ultrasonic investigations on the flux state of the organic superconductor κ-(BEDT-TTF)2Cu(NCS)2

    The flux state of the organic superconductor κ-(BEDT-TTF)2Cu(NCS)2 has been investigated by ultrasonic measurements. The magnetic field dependence in the longitudinal sound velocity, shows a remarkable dip. The a...

    M. Yoshizawa, T. Kumada, N. Yoshimoto in Journal of Low Temperature Physics (1996)

  12. No Access

    Article

    Ultrafast optical response in polydiacetylenes and polythiophenes

    Ultrafast optical response in the films of poly(3-dodecylthiophene) (P3DT) and blue-and red-phase polydiacetylenes (PDA-4BCMU) has been investigated by femtosecond absorption and picosecond luminescence spectr...

    M. Yoshizawa, A. Yasuda, T. Kobayashi in Applied Physics B (1991)

  13. No Access

    Article

    The galactic warp and rotations of the fundamental system

    The proper motion in galactic latitude of O-B stars enables us to detect the kinematic behaviour of an optical counterpart of the large-scale warp of the HI gas layer in our Galaxy. A selected set of the prope...

    M. Miyamoto, M. Yoshizawa, S. Suzuki in Astrophysics and Space Science (1991)

  14. No Access

    Article

    An unusual tracheal foreign body in a neonate

    Y. Horimoto, T. Kasuya, M. Yoshizawa, A. Okazaki, H. Itoh… in Pediatric Radiology (1986)

  15. No Access

    Article

    Grüneisen parameter coupling in heavy fermion systems

    We discuss thermodynamic consequences of a Grüneisenparameter electron-phonon coupling in heavy fermion systems. Characteristic features of sound propagation, thermal expansion and ultrasonic attenuation are g...

    M. Yoshizawa, B. Lüthi, K. D. Schotte in Zeitschrift für Physik B Condensed Matter (1986)