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Inductorless 8.9 mW 25 Gb/s 1:4 DEMUX and 4 mW 13 Gb/s 4:1 MUX in 90 nm CMOS
Sekiguchi, Takayuki,Amakawa, Shuhei,Ishihara, Noboru,Masu, Kazuya The Institute of Electronics and Information Engin 2010 Journal of semiconductor technology and science Vol.10 No.3
A low-power inductorless 1:4 DEMUX and a 4:1 MUX for a 90 nm CMOS are presented. The DEMUX can be operated at a speed of 25 Gb/s with the power supply voltage of 1.05 V, and the power consumption is 8.9 mW. The area of the DEMUX core is $29\;{\times}\;40\;{\mu}m^2$. The operation speed of the 4:1 MUX is 13 Gb/s at a power supply voltage of 1.2 V, and the power consumption is 4 mW. The area of the MUX core is $30\;{\times}\;18\;{\mu}m^2$. The MUX/DEMUX mainly consists of differential pseudo-NMOS. In these MUX/DEMUX circuits, logic swing is nearly rail-to-rail, and a low $V_{dd}$. The component circuit is more scalable than a CML circuit, which is commonly used in a high-performance MUX/DEMUX. These MUX/DEMUX circuits are compatible with conventional CMOS logic circuit, and it can be directly connected to CMOS logic gates without logic level conversion. Furthermore, the circuits are useful for core-to-core interconnection in the system LSI or chip-to-chip communication within a multi-chip module, because of its low power, small footprint, and reasonable operation speed.
The Unmasked Aviation Accident Investigation System in Japan
Sekiguchi, Masao 한국항공우주정책·법학회 2002 한국항공우주정책·법학회지 Vol.16 No.-
The Japanese Aviation Accident Investigation Board has two faces. While the surface of the Board is a one of the very accident investigation organ, its shadow face is a one of the very expert witness drawing up a requested written opinion for the sake of the criminal investigation of the Police under the two secret inter-ministerial accords. This Paper proposes that some evidence obtained by investigation ought to be protected for disclosure and use by privilege derived from on of our most basic legal principles: "Nemo debet se-ipsem accusare-no one is required to incriminate oneself-".
SEKIGUCHI, MASAO 한국항공우주법학회 2000 한국항공우주정책·법학회지 Vol.12 No.-
The Montreal Convention markedly changed the rules governing the international carriage by air of passenger, baggage and cargo. The introduction of a considerable number of modernized major elements including electric ticketing system, the unlimited passenger liability regime and a supplementary (fifth) jurisdiction should help to remove aged scheme that now exists in the Warsaw Convention and other related instruments. The key issue of the electric ticketing system recognized by the Convention is how to describe reasonably and adequately the terms of written notices, in the light of the principle of consumer protection. Regarding liability regime for passengers, an unlimited passenger liability regime is realized. The carrier, in the first tier, is subject to a strict liability regime of up to 100,000 SDRs, and in the second tire, a regime of presumed fault liability without numerical liability limits. To add to the present four fora, the fifth forum is permitted. Regarding damage resulting the death or injury of a passenger, an action for damages may also be brought in its home territory with the considerably qualified narrow requirements. A strange deviation from the well-established $quot;Procedure for Approval of Draft Convention$quot; carried out by the Legal Committee left a considerable number of unrefined and incomplete passages. In the near future, their modification should be required.
Hirotaka Sekiguchi,Fumiyo Takabayashi,Kazuhiro Irie,Akira Murakami 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.7
Helicobacter pylori is a major human pathogen that plays central roles in chronic gastritis and gastric cancer. Recently, we reported that auraptene suppressed H. pylori adhesion via expression of CD74, which has been identified as a new receptor for H. pylori urease. In this study, we attempted to clarify the effects of oral feeding of auraptene on H. pylori infection and resultant inflammatory responses in C57BL/6 mice and found that it remarkably attenuated H. pylori colonization and gastritis. Biochemical analyses revealed that auraptene inhibited H. pylori–induced expression and/or production of CD74, macrophage migration inhibitory factor, interleukin-1b, and tumor necrosis factor-a in gastric mucosa, together with serum macrophage inhibitory protein-2. It is notable that treatment with this coumarin during the pretreatment period was more effective than that during posttreatment. Our results suggest that auraptene is a promising phytochemical for reducing the risk of H. pylori–induced gastritis and carcinogenesis.