Masayuki Sato

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In this paper, we propose a new design method for Gain-Scheduled Output Feedback (GSOF) controllers for continuous-time Linear Parameter-Varying (LPV) systems via Parameter-Dependent Lyapunov Functions (PDLFs). The GSOF controllers depend solely on scheduling parameters. Although our method requires a line search to obtain suboptimal controllers, it(More)
The considered problem is assessing non-negativity of a function's values when indeterminates are in domains constrained by scalar polynomial inequalities. The tested functions are multi-indeterminates polynomial matrices which are required to be positive semi-definite. New tests based on linear matrix inequalities are provided in a Slack Variables type(More)
This paper addresses robust stability, <i>H</i> <sub>2</sub> performance, and <i>H</i> <sub>infin</sub> performance analysis for linear time-invariant parameter-dependent (LTIPD) systems, in which the state-space matrices are polynomially parameter-dependent, using polynomially parameter-dependent Lyapunov functions (PDLFs). Our results are derived via(More)
A modern high-performance multi-core processor has large shared cache memories. However, simultaneously running threads do not always require the entire capacities of the shared caches. Besides, some threads cause severe performance degradation by inter-thread cache conflicts and shortage of capacity on the shared cache. To achieve high performance(More)
The role of disparity-perspective cue conflict in depth contrast was examined. A central square and a surrounding frame were observed in a stereoscope. Five conditions were compared: (1) only disparity was introduced into either the centre or surround stimulus, (2) only perspective was introduced into the centre or surround, (3) concordant perspective and(More)
Our prior studies have demonstrated that the transient-vergence system responds preferably to dichoptic stimulus pairs that contain the highest combined energy, regardless of dichoptic differences in spatial frequency, contrast, orientation, or luminance polarity (Edwards, M., Pope, D. R., & Schor, C. M. (1998), Vision Research 38, 705; Pope, D. R.,(More)
To clarify whether stereo-slant aftereffects are independent of stimulated retinal position, two experiments compared the magnitude of aftereffects between the following two conditions: when the adaptation and test stimulus fell on (1) the same retinal position, and (2) on different retinal positions separated by 0.5 degrees -20 degrees . In Experiment 1,(More)
UNLABELLED In tumors the process of apoptosis occurs over an interval of time after chemotherapy. To determine the best timing for detecting apoptosis in vivo with (99m)Tc-annexin V after chemotherapy, we examined the changes in (99m)Tc-annexin V accumulation over time in comparison with those of caspase-3 and terminal deoxynucleotidyl transferase-mediated(More)