6 research outputs found

    Search for B decays into η'p, η'K^*, η'φ, η'ω and η'η^(')

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    We report on a search for the exclusive two-body charmless hadronic B meson decays B → η'ρ, B → η'K^*, B^0 → ηφ, B^0 → η'ω, and B0 →η'η^('). The results are obtained from a data sample containing 535×10^6 B\bar{B} pairs that were collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We find no significant signals and report upper limits in the range (0.5–6.5)×10^-6 for all of the above decays.journal articl

    Observation of Large CP Violation and Evidence for Direct CP Violation in B0→π+π- Decays

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    journal articl

    研究速報 : 気泡駆動型熱輸送管のマイクロ・フレキシブル化に関する研究

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    departmental bulletin pape

    Glass based micro total analysis systems: Materials, fabrication methods, and applications

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    Microfluidics has become recognized as a powerful platform technology with a wide range of applications in various fields, such as biology, biomedicine, chemistry and environment. To achieve higher performance, microfluidic devices are required to have superior optical transparency; mechanical, chemical and thermal stability; as well as easy design and fabrication. All of these requirements make glass as an attractive and ideal material for the fabrication of microfluidic devices due to its excellent characteristics in optical, mechanical, thermal, electrical and chemical aspects in comparison to other materials (e.g., silicon and polydimethylsiloxane). In order to give preliminary guidance for researchers from different backgrounds, we provide a comprehensive overview of the fabrication methods for glass-based microfluidic devices as well as various applications based on different types of glass. This review takes into account recent advances in the fabrication of microfluidics, such as, liquid glass and ultra-thin glass, so as to provide a full understanding of the latest research trend in this area. Finally, some remaining challenges facing the field are summarized, and potential prospects for future work with an emphasis on both emerging techniques are discussed.journal articl
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