Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Kumiko Hori"'
Publikováno v:
Nature Astronomy.
Jupiter's weather layer exhibits long-term and quasi-periodic cycles of meteorological activity that can completely change the appearance of its belts and zones. There are cycles with intervals from 4 to 9 years, dependent on the latitude, which were
Publikováno v:
Earth and Planetary Science Letters. 519:50-60
We consider torsional Alfven waves which may be excited in Jupiter's metallic hydrogen region. These axisymmetric zonal flow fluctuations have previously been examined for incompressible fluids in the context of Earth's liquid iron core. Theoretical
Publikováno v:
Geophysical Research Letters. 42:6622-6629
The westward drift component of the secular variation is likely to be a signal of waves riding on a background mean flow. By separating the wave and mean flow contributions, we can infer the strength of the “hidden” azimuthal part of the magnetic
Publikováno v:
Physics of the Earth and Planetary Interiors. 236:16-35
Magnetohydrodynamic (MHD) waves in a rapidly rotating planetary core can cause the magnetic secular variation. To strengthen our understanding of the physical basis, we revisit the linear stability analyses of thermal convection in a quasi-geostrophi
Publikováno v:
Planetary and Space Science. 98:30-40
The early dynamos of Earth and Mars probably operated without an inner core being present. They were thus exclusively driven by secular cooling and radiogenic heating, whereas the present geodynamo is thought to be predominantly driven by buoyancy fl
Autor:
Kumiko Hori, Johannes Wicht
Publikováno v:
Physics of the Earth and Planetary Interiors. 219:21-33
Mars has no active dynamo action at present, but likely had one in the early stage of its history. Clarifying why and how it ceased is a challenging question. Several different scenarios have been proposed so far, here we explore the possibility that
Core flows and heat transfer induced by inhomogeneous cooling with sub- and supercritical convection
The amount and spatial pattern of heat extracted from cores of terrestrial planets is ultimately controlled by the thermal structure of the lower rocky mantle. Using the most common model to tackle this problem, a rapidly rotating and differentially
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a24070b3edf5827767c0951ad9cdc9c6
Autor:
Shigeo Yoshida, Kumiko Hori
Publikováno v:
Geophysical & Astrophysical Fluid Dynamics. 102:601-632
In mean-field dynamo theory, the electromotive force term 〈u′ × B′〉 due to small-scale fields connects the small-scale magnetic field with the large-scale field. This term is usually approximated as the α-effect, assumed to be instantaneous
Publikováno v:
Journal of Veterinary Medical Science. 61:721-724
Thermostable direct hemolysin-producing strain of Vibrio parahaemolyticus was not detected from the alimentary tract of 7 neritid gastropods including Clithon retropictus at 9 estuaries of Southwest Islands in Japan in the present study. The strain h
Autor:
Nami Komaki, Tatsuji Matsumoto, Ayako Ogasawara, Toshihiko Watanabe, Takeshi Mikami, Hitoshi Akai, Hiromi Watanabe, Kumiko Hori
Publikováno v:
Biological and Pharmaceutical Bulletin. 30:284-286
When mucin was added to Candida albicans under hyphal growth conditions, the hyphal formation was inhibited. After the 24 h incubation, the ratio of hyphal cells was 95.7+/-1.13% in the absence of mucin and no hyphal cells were observed in the presen