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An effective method is proposed to reduce dynamic power for synchronous 2-read/write (2RW) 8T dual-port (DP) SRAM. Adjusting the wordline (WL) pulse timing control circuit is newly introduced for both reading and writing operations. Row addresses of port-A and port-B are compared. The same row access is detected or not in each cycle, which is an inherent access mode of 2RW 8T DP SRAM. In different...
We investigate the characteristics of far-infrared brightness fluctuations at 90 μm and 170 μm in the Lockman Hole which were surveyed with ISO, using power spectrum analysis over the spatial frequency range of 0.05... 1 arcmin-1. The power spectra are found to be rather flat at low spatial frequencies (f ≤ 0.1 arcmin-1), and tend to decrease slowly towards the higher frequencies. The latter—unlike...
Two 44’ ×44’ fields in the Lockman hole have been surveyed at 95 and 175μm with ISOPHOT. The raw data were reduced by PIA up to AAP products and then the responsivity drift was corrected by the median filter technique. IRAF DAOPHOT was used to extract point sources from the maps. Simulations generating artificial objects show the effect of source confusion is significant in the flux range below 200...
We have made deep surveys of the Lockman Hole, the lowest HI column density area in the sky, using ISOCAM and ISOPHOT onboard the ISO satellite. The observations were very successful and provided valuable data on star forming activity and galaxy evolution. Model calculations indicate that there was an intense star formation period that peaked at around z = 0.7.
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