Frequency-dependent reflection coefficients of P waves at the inner core boundary (ICB) are estimated from the spectral ratios of PKiKP and PcP waves observed by the high-sensitivity seismograph network (Hi-net) in Japan. The corresponding PKiKP reflection locations at the ICB are distributed beneath the western Pacific. At frequencies where noise levels are sufficiently low, spectra of reflect...

Abstract The installation of dense seismometer arrays in Japan approximately 20 years ago has led to the discovery deep low-frequency tremors, which are oscillations clearly different from ordinary earthquakes. As such tremors may be related large earthquakes, it is an important issue seismology investigate that occurred before establishing arrays. We use learning aiming detect evidence past se...

Background. The responsive element of the GNU-KV Russian gravimeter comprises a Golitsyn lowfrequency vertical seismograph, which outperforms modern industrial SM-3KV seismographs in terms sensitivity to ground vibrations. A team geophysicists at Sergo Ordzhonikidze State University for Geological Prospecting modified construction adapt this device work mode portable seismological station recor...

background: the coronary artery bypass grafting (cabg) is performed to completely or partially relieve the symptoms of coronary heart disease (chd). one of the most important goals of this operation is the improvement of quality of life (qol). the data obtained on healthrelated quality of life (hrqol) represents the functional limitations and the alleviation of symptoms among patients. many fac...

Off Cape Muroto area, along the Nankai Trough in southwest Japan, is a typical area with adjacent occurrences of slow and megathrust earthquakes. High-resolution monitoring earthquakes necessary to understand tectonic conditions. In off distributed acoustic sensing (DAS) measurement, which provides high-density strain data, has been conducted using offshore fiber-optic cable. We observed shallo...

in order to study the morphological, phenological and yield characteristics of 70 desi chickpea genotypes, a trial was conducted on 2007 in research farm of agriculture faculty of ferdowsi university of mashhad. in this study, 70 desi chickpea genotypes from ferdowsi university of mashhad seed bank, were planted in plots without replication including one to four planting rows at maximum length ...