241 research outputs found
A nonlinear parametric model based on a power law relationship for predicting the coastal tsunami height
When a subduction-zone earthquake occurs, the tsunami height must be predicted to cope with the damage generated by the tsunami. Therefore, tsunami height prediction methods have been studied using simulation data acquired by large-scale calculations. In this research, we consider the existence of a nonlinear power law relationship between the water pressure gauge data observed by the Dense Oceanfloor Network System for Earthquakes and Tsunamis (DONET) and the coastal tsunami height. Using this relationship, we propose a nonlinear parametric model and conduct a prediction experiment to compare the accuracy of the proposed method with those of previous methods and implement particular improvements to the extrapolation accuracy
B/TI multilayer reactive igniter for micro solid rocket array thruster
MEMS 2007, Kobe, Japan, 21-25 January 200
Satellite-derived snow grain size over the Greenland Ice Sheet and its relationships with climate indices
The Tenth Symposium on Polar Science/Ordinary sessions: [OM] Polar Meteorology and Glaciology, Wed. 4 Dec. / 2F Auditorium, National Institute of Polar Researc
Detection of a low-eccentricity and super-massive planet to the subgiant HD 38801
We report the detection of a large mass planet orbiting around the K0
metal-rich subgiant HD38801 () by precise radial velocity (RV)
measurements from the Subaru Telescope and the Keck Telescope. The star has a
mass of and metallicity of [Fe/H]= +0.26. The RV variations are
consistent with a circular orbit with a period of 696.0 days and a velocity
semiamplitude of 200.0\mps, which yield a minimum-mass for the companion of
10.7\mjup and semimajor axis of 1.71 AU. Such super-massive objects with very
low-eccentricities and hundreds of days period are uncommon among the ensemble
of known exoplanets
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