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We report on the very-low-frequency earthquakes occurring in the transition zone of the subducting plate interface along the Nankai subduction zone in southwest Japan. Seismic waves generated by very-low-frequency earthquakes with seismic moment magnitudes of 3.1 to 3.5 predominantly show a long period of about 20 seconds. The seismicity of(More)
This paper studies subjective tradeoff between fidelity and latency in an interactive audio--visual application over the Internet. In audio--video transmission, its temporal structure is disturbed by delay jitter of packets. The fidelity means how exactly the temporal structure is preserved. The degradation in the fidelity can be improved by playout buffer.(More)
BACKGROUND It has been proposed that 0.5-mm-slice multislice computed tomography (MSCT) is a noninvasive tool for the detection of atherosclerotic plaque, but the validity of such an assessment has not been demonstrated by an invasive investigation. The present study was performed to compare the 0.5-mm-slice MSCT density of plaques with intravascular(More)
The flow-through centrifuge eliminates complications arising from rotating seals. Preliminary studies on plasmapheresis demonstrated negligible platelet injury and no evidence of hemolysis during 12 hours of operation. Thus the system may provide a broad application to cell washing and elutriation, zonal centrifugation, and countercurrent chromatography.
— This paper quantitatively evaluates the mutually compensatory property in audio–video transmission over the In-ternet by the psychometric method. In our previous study, we used MOS (Mean Opinion Score) as the user–level QoS parameter ; however, MOS is an ordinal scale, and therefore, its value does not necessarily represent exact difference between the(More)
— This paper proposes a scheme for quantitative assessment of user-level (or perceptual) QoS for audio-video transmission by means of two psychometric methods: the method of paired comparisons and the law of comparative judgment. Moreover, we discuss QoS mapping from application-level QoS to user-level QoS by principal component analysis and multiple(More)
In obesity, levels of tumor necrosis-factor α (TNFα) are well known to be elevated in adipose tissues or serum, and a high-fat diet (HFD) reportedly increases TNFα expression in the hypothalamus. The expression levels of hypothalamic protein tyrosine phosphatase 1B (PTP1B), a negative regulator of leptin and insulin signaling, are also elevated by HFD, and(More)
— This paper investigates the effect of the mean and jitter of end–to–end delay on user–level QoS of live audio-video transmission. The temporal structure of continuous media can be disturbed by delay jitter of packets. The temporal disturbance causes subjective degradation of the media. On the other hand, long end–to–end delay also degrades quality of live(More)
— This paper proposes a session control method which provides a mechanism to achieve desirable user–level QoS (i.e., perceptual QoS) of audio–video transmission over IP networks. The proposed method, which is referred to as GPSQ (Guarantee of Psychologically Scaled Quality), utilizes a user–level QoS parameter of the interval scale in the psychometric(More)
— This paper proposes a real–time estimation method of perceptual QoS (i.e., user–level QoS) of audio–video transmission over IP networks. The estimated quality reflects cross–modal influences of audio and video in the framework of ITU–T Recommendation J. 148. As objective measures of audio and video for the use of the perceptual QoS estimation, we select(More)