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Two new telescopes were built at the National Astronomical Observatory of Japan, i.e. the Solar Flare Telescope and the 10-cm New Coronagraph. The Solar Flare Telescope was constructed at Mitaka to make observations of photospheric velocity fields, vector magnetic fields, and Hα and continuum images of active regions simultaneously. The whole system will be completed in 1991. The 10-cm new coronagraph,...
Trellis shaping (TS) is known as a flexible technique to generate transmit symbols constrained (or controlled) for a particular desired property of communication systems. In our recent results, an application of TS for peak-to-average power ratio (PAPR) reduction of single-carrier (SC) signals has been extensively studied, to show that even a highly fluctuating envelope can be reduced to a nearly...
Optical Burst Switching (OBS) has been proposed to realize the next generation Internet on the Wavelength Division Multiplexing (WDM) network technology. Optical Burst Switching is an ultra high speed switching technology for optical fiber networks but has the data burst contention problem. In this paper, we introduce Virtual Path (VP) concept addressing burst contention resolutions in OBS networks...
We are going to develop a method of washing out underground pollution by using water permeable pipes developed by us and pouring/draining water. This method is effective even there exist already buildings on the ground. To visualize underground pollution directly or especially underground water which can work as the solvent of pollutant to be washed out, we have developed electrical impedance tomography...
This study has been conducted by aiming at acquisition of benchmark test data for CFD simulations for thin electronic equipment. Flow in the model of a thin electronic equipment was measured using a PIV. Dummy components were placed in the model and those configurations were altered. The temperature rise of a heat source in the model was also measured and the cooling performance was examined. PIV...
This paper describe the challenges of migrating the Cell Broadband Engine (Cell BE) design from a 65 nm SOI to a 45 nm twin-well CMOS technology on SOI with low-k dielectrics and copper metal layers using a mostly automated approach. A die micrograph of the 45 nm Cell BE is described here. The cycle-by-cycle machine behavior is preserved. The focuses are automated migration, power reduction, area...
The first generation cell broadband engine processor introduced the cell architecture that consists of nine processor cores fabricated in the 90 nm CMOS SOI technology. This paper describes the advances made by moving the cell broadband engine design from 90 nm CMOS SOI to 65 nm CMOS SOI.
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