Search

Your search keyword '"Takabatake, T."' showing total 716 results
Start Over Author "Takabatake, T." Language english
716 results on '"Takabatake, T."'

2. Engineering lessons from the 28 September 2018 Indonesian tsunami: debris loading

Author

Stolle, J., Krautwald, C., Robertson, I., Achiari, H., Mikami, T., Nakamura, R., Takabatake, T., Nishida, Y., Shibayama, T., Esteban, M., Nistor, I., and Goseberg, N.

Subjects
United Kingdom. Natural Environment Research Council -- Surveys, Seismology -- Surveys, Natural disasters -- Canada -- Japan -- Germany -- Indonesia -- Surveys, Earthquakes -- Canada -- Japan -- Germany -- Indonesia -- Surveys, Tsunamis -- Canada -- Japan -- Germany -- Indonesia -- Surveys, Natural disaster damage -- Surveys, Timber -- Surveys, Engineering and manufacturing industries
Abstract

A field survey team went to Palu City, Indonesia in the aftermath of the September 28th, 2018 earthquake and tsunami to investigate its effects on local infrastructure and buildings. The study focused on the coast of Palu Bay, where a tsunami wave between approximately 2 and 7 m high impacted the local community as a result of several complex tsunami source mechanisms. The following study outlines the results, focused on loading caused by debris entrained within the inundating flow. Damage to timber buildings along the coast was widespread, though reinforced concrete structures for the most part survived, providing valuable insights into the type of debris loads and their effects on structures. The results of this survey are placed within the context of Canadian tsunami engineering challenges and are compared to the recently-released ASCE 7 Chapter 6 Tsunami Loads and Effects, detailing potential research gaps and needs. Key words: tsunami, natural disasters, field surveys, debris, coastal engineering, Indonesia. Une equipe d'etude sur le terrain s'est rendue a la ville de Palu, en Indonesie, a la suite du tremblement de terre et du tsunami du 28 septembre 2018, pour etudier ses effets sur les infrastructures et les batiments locaux. L'etude a porte sur la cote de la baie de Palu, ou une vague de tsunami d'environ 2 a 7 m de hauteur a touche la communaute locale en raison de plusieurs mecanismes complexes decoulant du tsunami. L'etude qui suit presente les resultats, en mettant l'accent sur le chargement cause par des debris entraines par le courant d'inondation. Les dommages causes aux batiments en bois le long de la cote etaient generalises, bien que la plupart des structures en beton arme aient survecu, ce qui a permis de mieux comprendre le type de charges de debris et leurs effets sur les structures. On presente les resultats de cette etude dans le contexte des defis d'ingenierie lies aux tsunamis au Canada et on les compare au chapitre 6 de l'ASCE 7, <>, publie recemment, qui decrit les lacunes et les besoins potentiels en matiere de recherche. [Traduit par la Redaction] Mots-cles: tsunami, catastrophes naturelles, etudes sur le terrain, debris, travaux maritimes, Indonesie., Introduction On September 28th, 2018, at 18:02:43 local time, a Mw 7.5 strike-slip earthquake occurred along the coast of the Central Sulawesi province of Indonesia (Hui et al. 2018; USGS [...]

Published
2020
Full Text
View/download PDF

12. Quantum critical spin-liquid-like behavior in S = 1/2 quasikagome lattice CeRh1-xPdxSn investigated using muon spin relaxation and neutron scattering

Author

Tripathi, Rajesh, Adroja, D. T., Ritter, C., Sharma, Shivani, Yang, Chongli, Hillier, A. D., Koza, M. M., Demmel, F., Sundaresan, A., Langridge, S., Higemoto, Wataru, Ito, Takashi U., Strydom, A. M., Stenning, G. B. G., Bhattacharyya, A., Keen, David, Walker, H. C., Perry, R. S., Pratt, Francis, Si, Qimiao, and Takabatake, T.

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science, Strongly Correlated Electrons (cond-mat.str-el), Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences
Abstract

We present the results of muon spin relaxation ($\mu$SR) and neutron scattering on the Ce-based quasikagome lattice CeRh$_{1-x}$Pd$_{x}$Sn ($x=0.1$ to 0.75). Our ZF-$\mu$SR results reveal the absence of static long-range magnetic order down to 0.05~K in $x = 0.1$ single crystals. The weak temperature-dependent plateaus of the dynamic spin fluctuations below 0.2~K in ZF-$\mu$SR together with its longitudinal-field (LF) dependence between 0 and 3~kG indicate the presence of dynamic spin fluctuations persisting even at $T$ = 0.05~K without static magnetic order. On the other hand, $C_{\text{4f}}$/$T$ increases as --log $T$ on cooling below 0.9~K, passes through a broad maximum at 0.13~K and slightly decreases on further cooling. The ac-susceptibility also exhibits a frequency independent broad peak at 0.16~K, which is prominent with an applied field $H$ along $c$-direction. We, therefore, argue that such a behavior for $x=0.1$ (namely, a plateau in spin relaxation rate ($\lambda$) below 0.2~K and a linear $T$ dependence in $C_{\text{4f}}$ below 0.13~K) can be attributed to a metallic spin-liquid (SL) ground state near the quantum critical point in the frustrated Kondo lattice. The LF-$\mu$SR study suggests that the out of kagome plane spin fluctuations are responsible for the SL behavior. Low energy inelastic neutron scattering (INS) of $x$ = 0.1 reveals gapless magnetic excitations, which are also supported by the behavior of $C_{\text{4f}}$ proportional to $T^{1.1}$ down to 0.06~K., Comment: 19 pages and 9 figures

Published
2022

19. Anisotropic superconductivity and unusually robust electronic critical field in single crystal La7Ir3

Author

Mayoh, D. A., Holt, S. J. R., Takabatake, T., Balakrishnan, G., and Lees, M. R.

Subjects
Superconductivity (cond-mat.supr-con), Condensed Matter - Materials Science, Condensed Matter - Strongly Correlated Electrons, Strongly Correlated Electrons (cond-mat.str-el), Condensed Matter - Superconductivity, Condensed Matter::Superconductivity, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, QD, QC
Abstract

Polycrystalline La$_{7}$Ir$_{3}$ is reported to show superconductivity breaking time-reversal symmetry while also having an isotropic $s$-wave gap. Single crystals of this noncentrosymmetric superconductor are highly desirable to understand the nature of the electron pairing mechanism in this system. Here we report the growth of high-quality single crystals of La$_{7}$Ir$_{3}$ by the Czochralski method. The structural and superconducting properties of these large crystals have been investigated using x-rays, magnetization, resistivity and heat capacity measurements. We observe a clear anisotropy in the lower and upper critical fields for magnetic fields applied parallel and perpendicular to the hexagonal $c$ axis. We also report the presence of a robust electronic critical field, that diverges from the upper critical field derived from heat capacity, which is the hallmark of surface superconductivity., Comment: 20 + 5 pages, 6 + 4 figures, 1 + 1 tables. Accepted for publication into Physical Review Materials

Published
2021

Catalog

Books, media, physical & digital resources
See catalog results